That's in part because of the state's complex, multiphase caucusing process, which allows supporters of underdog candidates to shift to stronger contenders.
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But Price said the CBO is only looking at specific aspects of the bill, not the whole package, which is a multiphase process.
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A few miles north, a multiphase effort is underway to reinvigorate and modernize the Fort Worth Stockyards district, one of the city's most popular tourist magnets.
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Treasury Secretary Steven Mnuchin, who served as the White House's chief negotiator for the bill that now awaits Senate action, compared the multiphase legislative response to a baseball game.
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Researchers gave a cough or a sneeze the term "multiphase turbulent buoyant cloud," since the cloud mixes with surrounding air before its payload of liquid droplets falls out, evaporates into solid residues, or both.
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The faction of fans braying for Negan's bloody demise and those loyalists holding fast to the show's founding principles of humanity and mercy both get their way in the multiphase battle that fills out this episode's back half.
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"So the upstream dune is actually generating a wake that speeds up the downstream dune to give it an extra kick," said senior research fellow Nathalie Vriend with the BP Institute for Multiphase Flow, who led the research.
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But what would give everyone a boost, from Main Street to Wall Street to the management suite — and buy the patience we need — is if they saw that you had a clearly defined, multiphase plan for combating the coronavirus based on science.
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In 2015/16 it gave grants worth around 1.4 million pounds, according to Cambridge, and in 2000 a 22 million pound donation from BP helped to create the BP Institute for Multiphase Flow, which focuses on research in surfaces and particles and fluid dynamics.
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" He continued: "This funding of horizontal infrastructure at the beginning of a multiphase, long-term real-estate development project requires patient capital, since the project will not generate cash flow to support debt service payments on the mortgage until after the vertical buildings are completed and occupied.
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"This IFR addresses aging infrastructure and is the first step in a multiphase process to enhance the safety of underground natural gas storage," said PHMSA Administrator Marie Therese Dominguez in the statement, adding that the standard would help prevent incidents like the one at Aliso Canyon.
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The petroleum industry is therefore using a generalized Darcy equation for multiphase flow that was developed by Muskat et alios. Because Darcy's name is so widespread and strongly associated with flow in porous media, the multiphase equation is denoted Darcy's law for multiphase flow or generalized Darcy equation (or law) or simply Darcy's equation (or law) or simply flow equation if the context says that the text is discussing the multiphase equation of Muskat et alios. Multiphase flow in oil and gas reservoirs is a comprehensive topic, and one of many articles about this topic is Darcy's law for multiphase flow.
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Sketch of multiphase flow in an oil pipe, where the continuous phase is the liquid (blue) carrying smaller particles. Gas (white) and oil particles (black) are in a disperse phase. In fluid mechanics, multiphase flow is the simultaneous flow of materials with two or more thermodynamic phases. Virtually all processing technologies from cavitating pumps and turbines to paper-making and the construction of plastics involve some form of multiphase flow.
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Double-fed induction generator (DFIG), a generating principle widely used in wind turbines. It is based on an induction generator with a multiphase wound rotor and a multiphase slip ring assembly with brushes for access to the rotor windings. It is possible to avoid the multiphase slip ring assembly, but there are problems with efficiency, cost and size. A better alternative is a brushless wound-rotor doubly-fed electric machine.
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In September 2018, the Simon Property Group began a multiphase and multimillion- dollar renovation of the center.
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A number of novel multiphase metering techniques, employing a variety of technologies, have been developed which eliminate the need for three-phase separator deployment. These MPFMs offer substantial economic and operating advantages over their phase separating predecessor. Nevertheless, it is still widely recognised that no single MPFM on the market can meet all multiphase metering requirements.Babelli, I.M.M., ‘In Search of an Ideal Multiphase Flow Meter for the Oil Industry’, Arabian Journal of Science and Engineering, Volume 27, Number 2B, October 2002, pp.
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Multiphase flow occurs regularly in many natural phenomena, and also is well documented and crucial within various industries.
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Olga Šolcová, CSc. #Department of Multiphase Reactors - Head: Doc. Ing. Marek Růžička, CSc. #Department of Analytical Chemistry - Head: Ing.
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The most common class of multiphase flows are two- phase flows, and these include Gas-Liquid Flow, Gas-Solid Flow, Liquid-Liquid Flow and Liquid-Solid Flow. These flows are the most studied, and are of most interest in the context of industry. Different patterns of multiphase flow are known as flow regimes.
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Doubly fed electric motors have two independent multiphase winding sets, which contribute active (i.e., working) power to the energy conversion process, with at least one of the winding sets electronically controlled for variable speed operation. Two independent multiphase winding sets (i.e., dual armature) are the maximum provided in a single package without topology duplication.
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The 1980s saw further modelling of multiphase flow by modelling flow patterns to different pipe inclinations and diameters and different pressures and flows. Advancements in computing power in the 1990s allowed for increasingly complex modelling techniques to modelling multiphase flow, flows that were previously limited to one-dimensional problems could be pushed to three-dimensional models. Projects to develop multiphase flow metering technology (MFM), used to measure the rate of individual phase flow appeared in the 1990s. The impetus behind this technology was a forecasted decline of production from the major North Sea oil fields.
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As the initial interest in multiphase flow metering came from the offshore industry, most of the multiphase metering activity was concentrated in the North Sea. However, the present distribution of multiphase flow meters is much more diverse. Most modern meters combine a venturi flow rate meter, with a gamma densitometer, and some meters have additional measurements for water salinity. The meter measures the flow rates at line pressures, which are typically orders of magnitude greater than atmospheric pressure, but the meter must report the oil and gas volumes at standard (atmospheric) pressure and temperature.
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Lagrangian multiphase models, which are used for dispersed media, are based on solving the Lagrangian equation of motion for the dispersed phase.
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The large majority of processing technology involves multiphase flow. A common example of multiphase flow in industry is a fluidized bed. This device combines a solid-liquid mixture and causes it to move like a fluid. Further examples include bubbly flow in nuclear reactors, gas-particle flow in combustion reactors and fiber suspension flows within the pulp and paper industry.
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Pike Signals XLMicro battery powered wirelessXLMicro The lightweight solution to Multiphase traffic control. Pike Signals. Retrieved 16 July 2015. equipment in use in London.
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Khayyer and Gotoh, 2009, Kondo and Koshizuka, 2010, Khayyer and Gotoh, 2010), and for simulation of multiphase and granular flows (Nabian and Farhadi 2016).
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The thermal power station subsystem involves multiphase flow, phase transformation and complex chemical reaction associated with conjugate heat transfer. Typical layout of thermal power plant.
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This change made it suitable for researchers in the petroleum industry. Based on experimental results by his colleagues Wyckoff and Botset, Muskat and Meres also generalized Darcy's law to cover a multiphase flow of water, oil and gas in the porous medium of a petroleum reservoir. The generalized multiphase flow equations by Muskat and others provide the analytical foundation for reservoir engineering that exists to this day.
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Volume rendering of an abdominal CT. Multiphase CT examinations are very important for the detection and characterization of certain clinical conditions, but should not be generalized for every patient undergoing CT of the abdomen and pelvis. A recent survey demonstrated that many physicians are routinely performing multiphase CT for the majority of patients in an attempt to prospectively characterize potential lesions detected during the scan. However, unindicated multiphase CT examinations are an important source of medical radiation that does not contribute to the care of patients. Adherence to published standards such as the ACR appropriateness criteria can both decrease medical radiation and optimize imaging for the specific clinical indication.
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Also, the specific volume of steam for a given temperature decreases with decreasing dryness.Soo, Shao L. (1989). Particulates and Continuum: A Multiphase Fluid Dynamics. CRC Press.
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A multiphase, $500 million mixed-use redevelopment along the East Bank of the Flats is being developed and financed by the Wolstein Group and Fairmount Properties.
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A multiphase, $500 million mixed-use redevelopment along the East Bank of the Flats is being developed and financed by the Wolstein Group and Fairmount Properties.
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Besides allowing the description of multiple grains in a microstructure, multiphase-field models especially allow for consideration of multiple thermodynamic phases occurring e.g. in technical alloy grades.
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Barry Azzopardi (1947-2017) was a professor of chemical engineering specialising in multiphase flow research. He was a chartered engineer and Fellow of the Institution of Chemical Engineers.
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The Institute consists of five scientific departments (Atmospheric Chemistry, Climate Geochemistry, Biogeochemistry, Multiphase Chemistry, and Particle Chemistry) and additional research groups. The departments are independently led by their Directors.
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One example where this has been investigated is for use in high power aircraft electronics. Heat exchangers functioning in multiphase flow regimes may be subject to the Ledinegg instability.
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The van der Waals capillarity energy is now widely used in the phase field models of multiphase flows. Such terms are also discovered in the dynamics of non-equilibrium gases.
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He is the author of "Advanced Mathematics for Applications", a reference textbook for graduate-level engineers and also of "Computational Methods for Multiphase Flows", both published by the Cambridge University Press.
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A similar scheme (multiphase cooling) can be by a multistage evaporative cooler. The air is passed through a spray of salt solution to dehumidify it, then through a spray of water solution to cool it, then another salt solution to dehumidify it again. The brine has to be regenerated, and that can be done economically with a low-temperature solar still. Multiphase evaporative coolers can lower the air's temperature by 50 °F (28 °C), and still control humidity.
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The Transport Chemical Aerosol Model (TCAM) CARNEVALE C, DECANINI E, VOLTA M. (2008). Design and validation of a multiphase 3D model to simulate tropospheric pollution. SCIENCE OF THE TOTAL ENVIRONMENT, vol. 390; p.
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Tryggvason has been a leading worker computational fluid dynamics and numerical methods. He is well known for his research on numerical simulations of vortex flows, multiphase flows, free surface flows, and flows with phase changes. For simulating multiphase flows, he and his co-workers have developed a front tracking method that incorporates an unstructured, moving grid within an underlying Eulerian grid.Unverdi, S. O. and Tryggvason, G. (1992), A Front- Tracking Method for Viscous, Incompressible, Multi-Fluid Flows, J. Comput. Phys.
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A recent study estimated that there were approximately 2,700 MPFM applications including field allocation, production optimisation and mobile well testing in 2006.Mehdizadeh, P., ‘2006 Worldwide Multiphase and Wet Gas Metering Installations’, Production Technology Report 03232007, 2007. A number of factors have instigated the recent rapid uptake of multiphase measurement technology: improved meter performances, decreases in meter costs, more compact meters enabling deployment of mobile systems, the need for sub sea metering, increases in oil prices and a wider assortment of operators.
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John Francis "Jack" Richardson OBE (29 July 1920 – 4 January 2011) was a UK chemical engineering academic, notable for his research into multiphase flow and rheology, but best known for a series of textbooks.
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While many models for debriefing exist, they all follow, at a minimum, a three-phase format. Debriefing models can be divided into two categories: the “Three-Phase Debriefing Structure,” and the “Multiphase Debriefing Structure”.
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SAES Getters exploits solid-state chemistry to manage multiphase solid-state reactions among one or more solid phases. Evaporable getters, mercury dispensers, alkali metal dispensers are examples of products based on solid-state reactions.
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Andrea Prosperetti is the Distinguished Professor of Mechanical Engineering at the University of Houston,Andrea Prosperetti at the University of Houston the Berkhoff Professor of Applied Physics at the University of Twente in the NetherlandsInformation about the Berkhoff Chair and an elected member of the National Academy of Engineering ("for contributions to the fundamentals and applications of multiphase flows"). He is known for his work in the field of multiphase flows including bubble dynamics and cavitation. He was the editor- in-chief of the International Journal of Multiphase Flow and serves on the editorial board of the Annual Review of Fluid Mechanics. He completed his doctoral work in 1974 at the California Institute of Technology under the supervision of Milton Plesset (of the Rayleigh–Plesset equation and Møller–Plesset perturbation theory) and holds a B.S. in Physics from Universitá di Milano, Italy (1968).
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"Principles of Hydraulic Design of Multiphase- Flow Transmission Pipelines". University of Tehran Press, 2002 Depending on the pressure and temperature of the reservoir, the amount of dissolved in the liquid phase and free gases will be different.
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However, in LBM, the particulate kinetics provides a relatively easy and consistent way to incorporate the underlying microscopic interactions by modifying the collision operator. Several LBM multiphase/multicomponent models have been developed. Here phase separations are generated automatically from the particle dynamics and no special treatment is needed to manipulate the interfaces as in traditional CFD methods. Successful applications of multiphase/multicomponent LBM models can be found in various complex fluid systems, including interface instability, bubble/droplet dynamics, wetting on solid surfaces, interfacial slip, and droplet electrohydrodynamic deformations.
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For morphological imaging, CT-scans, MRIs, sonography (ultrasound), and endoscopy (including endoscopic ultrasound) are commonly used. Multiphase CT and MRI are typically used both for diagnostics and for evaluation of therapy. The multiphase CT should be performed before and after an intravenous injection of an iodine- based contrast agent, both in the late arterial phase and in the portal venous phase (triple-phase study). While MRI is generally superior to CT, both for detection of the primary tumor and for evaluation of metastases, CECT is more widely available, even at academic institutions.
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Focusing his studies mainly on multiphase phenomena, Kumar is known to have done extensive researches on hydrodynamics and mass transfer in multiphase systems. He developed a two-stage model of bubble formation from single submerged nozzles which clarified the discrepancies in experimental data and is in use with industrially–relevant distributors. He developed a set of performance prediction protocols to be employed in foam bed contactors and batch sonochemical reactors. He also contributed to the development of a large scale fluidized bed reactor by which copper sulphate is manufactured directly from chalcopyrites.
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However, temperature and pressure are independent only for a single-phase system; for a multiphase system (such as a mixture of gas and liquid) this is not the case. (e.g., boiling point (temperature) depends on elevation (ambient pressure)).
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Hui-Hai Liu () is a hydrogeologist and reservoir engineer. He specializes in fracture hydrology, coupled hydrological and mechanical processes, physics and properties of subsurface multiphase flow and transport, and their applications in reservoir engineering and nuclear waste management.
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Arch Daily, PXSTL/Freecell Architecture. Retrieved December 8, 2014. The second iteration of PXSTL was a commission by artist- architects Amanda Williams and Andres L. Hernandez that resulted in a multiphase project evaluating the life cycle of a building.
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The uses of the PIC or MPM method can be divided into two broad categories: firstly, there are many applications involving fluid dynamics, plasma physics, magnetohydrodynamics, and multiphase applications. The second category of applications comprises problems in solid mechanics.
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1999 – Smedvig Technologies (Holding) AS merges with Multi- Fluid ASA and becomes Roxar ASA, a public company quoted on the Oslo Stock Exchange, specialising in reservoir modelling software, PDMS and multiphase metering. 2001 – Roxar ASA acquires Fluenta AS, a company specialising in multiphase meters, flare gas meters and sand monitoring. 2003 – The two major investors in Roxar ASA, Lime Rock Partners LP of the US and Smedvig AS of Norway acquire control of Roxar ASA and the company is delisted. 2004 – Roxar AS establishes a branch office in Moscow and acquires full ownership of Onics in Russia.
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The study of multiphase flow is strongly linked to the development of fluid mechanics and thermodynamics. A key early discovery was made by Archimedes of Syracuse (250 BCE) who postulated the laws of buoyancy, which became known as the Archimedes' principle – which is used in modelling multiphase flow. In the mid 20th century, advances in nucleate boiling were developed and the first two-phase pressure drop models were formed primarily for the chemical and process industries. In particular Lockhart and Martinelli (1949) presented a model for frictional pressure drop in horizontal, separated two-phase flow, introducing a parameter that is still utilised today.
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OLGA is a modelling tool for transportation of oil, natural gas and water in the same pipeline, so-called multiphase transportation. The name is short for "oil and gas simulator". The main challenge with multiphase fluid flow is the formation of slugs (plugs of oil and water) in the pipelines, which causes large problems at the receiving end at the platform or the onshore plant. The modelling tool makes it possible to calculate the fluid flow and safely bring the flow to the receiving destination on shore, on a platform or a production ship through the pipes.
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166-176, , doi: 10.1016/j.scitotenv.2007.09.017 is a multiphase three- dimensional eulerian grid model designed for modelling dispersion of pollutants (in particular photochemical and aerosol) at mesoscale. TCAM is developed by the ESMA (Environmental Systems Modeling and Assessment) group of University of Brescia.
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093603 H. V. R. Mittal, Qasem M. Al-Mdallal and Rajendra K. Ray, Locked-on vortex shedding modes from a rotationally oscillating circular cylinder, Ocean Engineering, vol. 146 (2017), pp. 324-338 Another benchmark in the history is its extension to multiphase flow phenomena.
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Production procedures follow a multiphase process in an off-site facility. First, production plans are created by CAD designers from architectural blueprints. Forms are prepared with steel rebar and styrofoam. The concrete mix is created at 5,000 psi and bonds directly to the foam insulation.
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A multiphase flow meter is a device used to measure the individual phase flow rates of constituent phases in a given flow (for example in oil and gas industry) where oil, water and gas mixtures are initially co-mingled together during the oil production processes.
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Multiphase Micro-Drop Interaction In Ink-jet Printing of 3D Structures for Tactile Maps. Modern Physics Letters B. Nos. 28&29 pp. 1699–1702. The substrate for tactile maps is a very important attribute, since different materials can enhance or reduce legibility and durability.
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He has one research monograph and more than 100 peer-reviewed articles/book chapters published, and made several major original contributions in his areas, including the development of (1) the active fracture model (AFM) that has been used as the base-case theory of flow and transport in unsaturated fractured rock by the Yucca Mountain nuclear waste repository Project, (2) the two-part Hooke's model (TPHM) by generalizing Hooke's law to incorporate mechanical heterogeneity of natural rocks, and (3) a new multiphase-flow theory based on the optimality principle that fingering multiphase flow in the subsurface is self-organized in such a way that total flow resistance is minimal.
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This information is not irrelevant, however, and its effect on the flow field must be modeled, a task which is an active area of research for problems in which small-scales can play an important role, such as near-wall flows , reacting flows, and multiphase flows.
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Coriolis meters are in use for liquid measurements, but can also take gas measurement applications. For the application of allocation measurements, multiphase flow meters have been adopted, especially for subsea production systems. These equipments are able to deduce the proportion and flow rate of each fluid phase.
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He later enrolled at the University of Calgary, Canada, where he pursued a Master's degree in chemical engineering. He also completed a joint dissertation on Multiphase (Oil and Gas) Flow at Imperial College London and the University of Calgary and obtained a PhD in chemical engineering.
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The selector is chosen using a multiphase bioinformatics approach. Using the selector, a probe-based hybridization capture is performed on tumor and normal DNA to discover mutations specific to the patient. The hybridization capture is then also applied to ctDNA to quantify the mutations that were previously discovered.
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Journal of Engineering Science and Technology. Vol. 6, No. 2, pp. 251– 259. # Lad, N., Aroussi, A., Adebayo, D. and Al-Atabi, M.T. 2011. “Characterisation of Multiphase Fluid-Structure Interaction Using Non-Intrusive Optical Techniques”. Journal of Engineering Science and Technology. Vol. 6, No. 2, pp. 131– 145.
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Lynne W. Jeter of the Mississippi Business Journal said in 2001 that the county airport "may have played an important role in landing the multiphase federal prison project that is currently under expansion."Jeter, Lynne W. "Airports an advantage when it comes to site selection." Mississippi Business Journal. March 26, 2001.
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Multiphase flow meters are not suitable for all applications where clean-ups are required post workover. In the absence of accurate, robust and low-cost multi-phase flow meters, large oil fields with thousands of wells continue to rely on well tests as the primary source of information for production surveillance.
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The International Journal of Multiphase Flow is a monthly peer-reviewed scientific journal covering fluid mechanics. The editors-in-chief are Alfredo Soldati (TU Wien) and S. Balachandar (U Florida). The founding editor was Gad Hetsroni (Technion – Israel Institute of Technology). Previous editor (2007-2017) was Andrea Prosperetti (U Houston).
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PORFLOW software package is a comprehensive mathematical model for simulation of Ground Water Flow and Nuclear Waste Management developed by Analytic & Computational Research, Inc., ACRi. The FEHM software package is available free from Los Alamos National Laboratory. This versatile porous flow simulator includes capabilities to model multiphase, thermal, stress, and multicomponent reactive chemistry.
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Gretar Tryggvason is Department Head of Mechanical Engineering and Charles A. Miller Jr. Distinguished Professor at Johns Hopkins University. He is known for developing the front tracking method to simulate multiphase flows and free surface flows. Tryggvason was the Editor-in-Chief of Journal of Computational PhysicsJournal of Computational Physics from 2002–2015.
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Electrical capacitance volume tomography (ECVT) is a non-invasive 3D imaging technology applied primarily to multiphase flows. It was first introduced by W. Warsito, Q. Marashdeh, and L.-S. Fan as an extension of the conventional electrical capacitance tomography (ECT). In conventional ECT, sensor plates are distributed around a surface of interest.
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In 2018 she was named the Fulbright Canada Research Chair in Climate Change, and will work at University of California, Irvine, for 2019. This position allowed her to teach a course on environmental catalysis and conduct research on multiphase chemistry in atmospheric aerosols catalyzed by metals. She is also a board member of Nano Ontario.
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The scientists of the MPIC Department of Biogeochemistry, in close cooperation with the Departments of Atmospheric Chemistry and Multiphase Chemistry, study interactions between the atmosphere and biosphere of our planet. The results of these studies contribute to the understanding of global biogeochemical cycles, global climate processes, and the impact of mankind on these processes.
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Physics of Fluids is a monthly peer-reviewed scientific journal covering fluid dynamics, established by the American Institute of Physics in 1958, and is published by AIP Publishing. The journal focus is the dynamics of gases, liquids, and complex or multiphase fluids—and the journal contains original research resulting from theoretical, computational, and experimental studies.
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Fig. 9: Schematic of a generic synchronous n-phase buck converter. Fig. 10: Closeup picture of a multiphase CPU power supply for an AMD Socket 939 processor. The three phases of this supply can be recognized by the three black toroidal inductors in the foreground. The smaller inductor below the heat sink is part of an input filter.
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Simulating multiphase/multicomponent flows has always been a challenge to conventional CFD because of the moving and deformable interfaces. More fundamentally, the interfaces between different phases (liquid and vapor) or components (e.g., oil and water) originate from the specific interactions among fluid molecules. Therefore, it is difficult to implement such microscopic interactions into the macroscopic Navier–Stokes equation.
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Therefore, multiphase CT is often the modality of choice. Advances in nuclear medicine imaging, also known as molecular imaging, has improved diagnostic and treatment paradigms in patients with neuroendocrine tumors. This is because of its ability to not only identify sites of disease but also characterize them. Neuronedocrine tumours express somatostatin receptors providing a unique target for imaging.
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T. Horváth (Ed.) "Encyclopedia of Catalysis", Wiley–VCH, Weinheim, 2002. .B. Cornils, W. A. Herrmann, I. T. Horváth, W. Leitner, S. Mecking, H. Olivier- Bourbigou, D. Vogt (Eds.) "Multiphase Homogeneous Catalysis", Wiley–VCH, Weinheim, 2005. . green chemistry, and fluorous technologies.J. A. Gladysz, D. P. Curran, I. T. Horváth (Eds.) "Handbook of Fluorous Chemistry", Wiley–VCH, Weinheim, 2004. .
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Carl Weingarten is an American guitarist, photographer, and founder of the independent music label Multiphase Records. Regarded as "one of the truly great indie musicians working today" by the San Francisco Chronicle,Carl Weingarten CDBaby.com. Retrieved on 2–12–09. he is best known for his atmospheric sound and use of the slide guitar and Dobro.
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He has also applied computational methods in a variety of scientific and engineering fields, including low-speed incompressible flows, shock wave theory, combustion, magnetohydrodynamics, and astrophysical flows. Colella has also been the leader of a project in NASA's Computational Technologies for Earth and Space Sciences, called "Block- Structured Adaptive Mesh Refinement Methods for Multiphase Microgravity Flows and Star Formation".
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Hydrophobic silica is used to solve technical problems in a number of products including, but not limited to, paints, inks, adhesives, plastics, coatings, toners, defoamers, silicone rubber, sealants, cosmetics, food additives, polyester resins, cable gels, and greases. It's often manufactured as both single and multiphase composites in order to enhance properties such as dispersion, stability behavior, resistance to water, and functionality.
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Sono-Ormosils are organically modified silicates, which were prepared by using high-performance ultrasound during the sol-gel process. When high intense ultrasound is introduced in liquid, cavitation is produced. Due to the cavitational shear forces, molecular weight is lowered by particle size reduction and polydispersity is achieved. Multiphase systems are dispersed and emulsified very efficiently, so that very fine mixtures are prepared.
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Multiple-order parameters describe a polycrystalline material microstructure. In multiphase- field models, microstructure is described by set of order parameters, each of which is related to a specific phase or crystallographic orientation. This model is mostly used for solid-state phase transformations where multiple grains evolve (e.g. grain growth, recrystallization or first-order transformation like austenite to ferrite in ferrous alloys).
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The Rattlesnake Hills greenstone belt represents a fragment of a partially exposed synformal Archean greenstone belt within the Wyoming craton that was intruded by Cenozoic alkalic volcanics. The supracrustal belt has been subjected to multiphase deformation during the Archean and later brittle deformation during the Laramide orogeny. Ductile deformation during the Archean produced foliation, and at least three episodes of folding.
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Malvo said that he wanted to do what little he could for the families of the victims by letting the full story be told. In his two days of testimony, Malvo outlined detailed aspects of all the shootings. Part of his testimony concerned Muhammad's complete multiphase plan. His plan consisted of three phases in the Washington, D.C. and Baltimore metro areas.
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Corrosion occurs when an anode and cathode are set up in the presence of electrolytes, creating an electrolytic cell. The multiphase structure of dental amalgam can contribute as an anode or cathode with saliva as electrolytes. Corrosion may significantly affect the structure and mechanical properties of set dental amalgam. In conventional amalgam, γ2 phase is the most reactive and readily forms an anode.
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Yang modified Geldart's classification using Archimedes number Ar, under elevated pressure, temperature, and non-dimensional density (Yang, 2007). Pressure and Pressure Drop The flow in a CFB is multiphase. The unrecoverable pressure drop along the riser height is a basic value for design; and this results due to solid particles distribution, voidage, gas viscosity, gas velocity, gas density, and density of solid.
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Pipeline pre-commissioning is the process of proving the ability of a pipeline and piping systems to contain product without leaking. This product may be liquid, gaseous or multiphase hydrocarbons, water, steam, CO2, N2, petrol, aviation fuel etc. Pre-commissioning is the series of processes carried out on the pipeline before the final product is introduced. The process during which the pipeline is made "live" i.e.
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He also discovered a new metastable phase of silicon. His work on phase transformations under contact load contributed to the field of high-pressure surface science. He was the first to conduct hydrothermal synthesis of carbon nanotubesY. Gogotsi, J. A. Libera, A. Güvenç-Yazicioglu, C. M. Megaridis, In Situ Multiphase Fluid Experiments in Hydrothermal Carbon Nanotubes, Applied Physics Letters 79 (7), 1021—1023 (2001).
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In the modern classification scheme, phase transitions are divided into two broad categories, named similarly to the Ehrenfest classes: First-order phase transitions are those that involve a latent heat. During such a transition, a system either absorbs or releases a fixed (and typically large) amount of energy per volume. During this process, the temperature of the system will stay constant as heat is added: the system is in a "mixed-phase regime" in which some parts of the system have completed the transition and others have not.Faghri, A., and Zhang, Y., Transport Phenomena in Multiphase Systems, Elsevier, Burlington, MA, 2006,Faghri, A., and Zhang, Y., Fundamentals of Multiphase Heat Transfer and Flow, Springer, New York, NY, 2020 Familiar examples are the melting of ice or the boiling of water (the water does not instantly turn into vapor, but forms a turbulent mixture of liquid water and vapor bubbles).
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Prosperetti was awarded the Fluid Dynamics Prize (the highest award in Fluid Mechanics) by the American Physical Society in 2003 "for breakthroughs in the theory of multiphase flows, the dynamics of bubble oscillations, underwater sound, and free-surface flows and for providing elegant explanations of paradoxical phenomena in these fields".2002 Fluid Dynamics Prize (Otto Laporte Award) Recipient at the American Physical Society In addition, Prosperetti also won the 2014 EUROMECH Fluid Mechanics Prize (administered by the Council of the European Mechanics Society),JHU Hub Article the Lifetime Achievement Award in 2001 by the Japan Society of Multiphase Flow, and the Fluids Engineering Award in 2005 by the American Society of Mechanical Engineers. He is a fellow of the Acoustical Society of America, the American Physical Society, and the American Society of Mechanical Engineers. He has been a foreign member of the Royal Netherlands Academy of Arts and Sciences since 2000.
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In multiphase power lines, a separate signal might be sent on each phase to speed up the transmission. The standard's low speed is caused by the limited number of bits per power line cycle. The high reliability comes from its reliable timing system (i.e. zero crossing), high signal to noise ratio (frequencies are chosen to avoid common power line noise), lack of intermodulation distortion, and adaptive signal detection.
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Smedvig Technology AS acquires 100 percent of the shares in Odin AS. 1997 –Smedvig Technology AS becomes Smedvig Technologies (Holding) AS with full ownership of Geomatic AS (former Petec, Geomatic and Ipac). Multi-Fluid is listed on the Oslo Stock Exchange. 1998 – Smedvig Technologies (Holding) AS and Multi-Fluid ASA launch a co-operation to develop a downhole water-cut meter. Multi-Fluid introduces the first subsea multiphase meter.
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Microgravity combustion research contributes to the understanding of a wide variety of aspects that are relevant to both the environment of a spacecraft (e.g., fire dynamics relevant to crew safety on the International Space Station) and terrestrial (Earth-based) conditions (e.g., droplet combustion dynamics to assist developing new fuel blends for improved combustion, materials fabrication processes, thermal management of electronic systems, multiphase flow boiling dynamics, and many others).
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One major challenge inherent in the multiphase converter is ensuring the load current is balanced evenly across the n phases. This current balancing can be performed in a number of ways. Current can be measured "losslessly" by sensing the voltage across the inductor or the lower switch (when it is turned on). This technique is considered lossless because it relies on resistive losses inherent in the buck converter topology.
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In oil and gas industries, multiphase flow often implies to simultaneous flow of oil, water and gas. The term is also applicable to the properties of a flow in some field where there is a chemical injection or various types of inhibitors. In petroleum engineering, drilling fluid consists of a gas-solid phase. Furthermore, crude oil during flow through pipelines is a gas-oil-water three phase flow.
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Mixture theory is used to model multiphase systems using the principles of continuum mechanics generalised to several interpenetrable continua. The basic assumption is that, at any instant of time, all phases are present at every material point, and momentum and mass balance equations are postulated. Like other models, mixture theory requires constitutive relations to close the system of equations. Krzysztof Wilmanski extended the model by introducing a balance equation of porosity.
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Diagram of Tiangong-1 Tiangong () is a space station program of the People's Republic of China, with the goal of creating a modular space station, comparable to Mir. This program is independent and unconnected to any other international space-active countries. The program began in 1992 as Project 921-2. , China moved forward on a large multiphase construction program that will lead to a large space station around 2020.
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This work focused on fluid flows in porous media, which are being investigated for applications in hydrocarbon field development. He published a book on the subject, developing a course that he taught at the École nationale du pétrole et des moteurs.Charles-Michel Marle, Les écoulements polyphasiques en milieu poreux. Traduction anglaise de la deuxième édition, Multiphase flow in porous media, Paris, Éditions Technip, 1981 (257 pages), première édition, 1965 (175 pages).
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Graeme John Jameson (born 1936) is an engineer, professor and Director of the Centre for Multiphase Processes at the University of Newcastle, Australia, in New South Wales, Australia. He is notable for being the inventor of the Jameson Cell mineral separation device, which he devised in the 1980s. The Jameson Cell uses bubbles to separate super fine particles during mineral processing. It is based on the froth flotation mineral separation process, first invented in 1905.
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Fallahnejad G., Kharrat R., Asphaltene deposition modeling during natural depletion and developing a new method for multiphase flash calculation, Iranian Journal of Oil & Gas Science and Technology, Volume 5, Issue 2, 2016, pp. 45–651-44. 27\. Ahmadi Y., Hassanbeygi M., Kharrat R., The Effect of Temperature and Injection Rate during Water Flood Using Carbonate Core Samples: An Experimental approach, Journal of Oil & Gas Science and Technology, Vol. 5, Issue 4, 2016, pp. 18–24.
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Focal nodular hyperplasia (FNH) is a benign tumor of the liver (hepatic tumor), which is the second most prevalent tumor of the liver (the first is hepatic hemangioma). It is usually asymptomatic, rarely grows or bleeds, and has no malignant potential. This tumour was once often resected because it was difficult to distinguish from hepatic adenoma, but with modern multiphase imaging is usually now diagnosed by strict imaging criteria and not resected.
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Between 1950 and 1960, intensive work in the aerospace and nuclear sectors triggered further studies into two-phase flow. In 1958 one of the earliest systematic studies of two- phase flow was undertaken by Soviet scientist Teletov. Baker (1965) conducted studies into vertical flow regimes. From the 1970s onwards, multiphase flow especially in the context of the oil industry has been studied extensively due to the increasing dependence of petroleum by the world economy.
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Multiphase flows are not restricted to only three phases. An example of a four phase flow system would be that of direct- contact freeze crystallization in which, for example, butane liquid is injected into solution from which the crystals are to be formed, and freezing occurs as a result of the evaporation of the liquid butane. In this case, the four phases are, respectively, butane liquid, butane vapor, solute phase and crystalline (solid) phase.
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The recommended multiphase model consists of establishing safety, distress tolerance, and social relations. Because DBT has four modules which generally align with these guidelines (Mindfulness, Distress Tolerance, Affect Regulation, Interpersonal Skills) it is a treatment option. Other critiques of DBT discuss the time required for the therapy to be effective. Individuals seeking DBT may not be able to commit to the individual and group sessions required, or their insurance may not cover every session.
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The galaxy has been observed with the InfraRed Spectrograph (IRS) onboard Spitzer Space Telescope, examining the dust features of NGC 4278. Multiphase gas and dust have been observed in the same elongated features. Another uncommon finding for an elliptical galaxy is the detection of emission by polycyclic aromatic hydrocarbons (PAHs) and of strong [Si II] 34.8-μm emission. PAHs in other elliptical galaxies are believed to be destroyed by the hot interstellar medium.
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In a body submerged in a fluid, unsteady forces due to acceleration of that body with respect to the fluid, can be divided into two parts: the virtual mass effect and the Basset force. The Basset force term describes the force due to the lagging boundary layer development with changing relative velocity (acceleration) of bodies moving through a fluid.C. Crowe et al., Multiphase flows with droplets and particles, CRC Press, 1998, , p.
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Around 6000 BC, they were replaced by the Neolithic Cardium pottery culture. As a result of the Würm glaciation the sea level was about 100 metres lower and the island extended closer to the mainland. Until around 5000 BC, it was connected to Sardinia. In the south of the island, a multiphase megalith culture (Filitosa) developed around 3000 BC. Contacts with Sardinia, Etruria, and Liguria are archaeologically attested in the Neolithic period.
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Additionally, Rome was also a big archaeological site since it was considered well established and advanced over time. Many excavations have been done there and later studied by archaeologists. One archaeologist who spent great time studying Roman archaeology was W.F. Grimes. Issues such as this had appeared before, at Pompeii or at multiphase rural sites but the move towards the investigation of cities, which began in Europe following the Second World War.
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In order to ensure economic viability of these accumulations, the wells may have to be completed subsea, or crude oil from several wells sent to a common production facility with excess processing capacity. The economic constraints on such developments do not lend themselves to the continued deployment of three-phase separators as the primary measurement devices. Consequently, viable alternatives to three-phase separators are essential. Industry’s response is the multiphase flow meter (MPFM).
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However, pump and treat is typically not the best form of remediation. It is expensive to treat the groundwater, and typically is a very slow process to clean up a release with pump and treat. It is best suited to control the hydraulic gradient and keep a release from spreading further. Better options of in-situ treatment often include air sparge/soil vapor extraction (AS/SVE) or dual phase extraction/multiphase extraction (DPE/MPE).
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Because of its high boiling point and affinity for water, ethylene glycol is a useful desiccant. Ethylene glycol is widely used to inhibit the formation of natural gas clathrates (hydrates) in long multiphase pipelines that convey natural gas from remote gas fields to a gas processing facility. Ethylene glycol can be recovered from the natural gas and reused as an inhibitor after purification treatment that removes water and inorganic salts. Natural gas is dehydrated by ethylene glycol.
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The multiphase buck converter is a circuit topology where basic buck converter circuits are placed in parallel between the input and load. Each of the n "phases" is turned on at equally spaced intervals over the switching period. This circuit is typically used with the synchronous buck topology, described above. This type of converter can respond to load changes as quickly as if it switched n times faster, without the increase in switching losses that would cause.
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Gradually however, the subject of chemical reaction engineering has largely replaced the unit process concept. This subject looks at the entire body of chemical reactions as having a personality of its own, independent of the particular chemical species or chemical bonds involved. The latter does contribute to this personality in no small measure, but to design and operate chemical reactors, a knowledge of characteristics such as rate behaviour, thermodynamics, single or multiphase nature, etc. are more important.
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Different modes of two-phase flows. In fluid mechanics, two-phase flow is a flow of gas and liquid — a particular example of multiphase flow. Two-phase flow can occur in various forms, such as flows transitioning from pure liquid to vapor as a result of external heating, separated flows, and dispersed two- phase flows where one phase is present in the form of particles, droplets, or bubbles in a continuous carrier phase (i.e. gas or liquid).
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The Steering Committee comprised representatives from the main sponsors of OpenFOAM in industry, academia, release authorities and consultant organisations. The organisation composition of the initial committee involved members from OpenCFD Ltd., ESI Group, Volkswagen, General Motors, FM Global, TotalSim Ltd., TU Darmstadt, and Wikki Ltd.. In addition, nine technical committees were established in the following areas: Documentation, high performance computing, meshing, multiphase, numerics, optimisation, turbulence, marine applications, and nuclear applications with the members from the organisations of OpenCFD Ltd.
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Hawley's model of a multiphase site did not agree with the contemporary interpretation and was ignored until Richard Atkinson revived the idea in the 1950s. Although later considerably refined, his multi-phase interpretation is now fully accepted. Certain of Hawley's other ideas, such as Stonehenge being a fortified settlement, were further off the mark and he died before his work was recognised. Artefacts excavated by Hawley at Stonehenge are displayed in the Wessex Gallery of Archaeology at the Salisbury Museum.
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The drag forces exerted on the particles by the relative velocity by them and the flow were treated as additional forces acting on the particles. Therefore, these multiphase flow phenomena including a solid e.g.~particulate and a gaseous or fluid phase resolve the particulate phase by discrete methods, while gas or liquid flow is described by continuous methods, and therefore, is labelled the combined continuum and discrete model (CCDM) as applied by Kawaguchi et al., Hoomans, Xu 1997 and Xu 1998.
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Professor Laloui has developed research approaches in several areas in the field of geo-engineering. He has focused on the fundamental study of soils and man-made geo-systems with an emphasis on the mechanics of various interacting multi-scale and multi-physics phenomena. He combines theoretical approaches and experiments, while on the other hand applying the concepts of porous material mechanics to geotechnical engineering. His research activities have produced results in computational geomechanics, environmental geomechanics, and the mechanics of multiphase porous materials.
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Moreover, the adoption of fingerprinting is widely spread geographically, it includes North America and the Middle East. ;Flow rate estimation There are varieties of methods for estimating the flow rate of the wells when flow measurements are unavailable. Models describe multiphase flows behaviour under different conditions, and they are continuously being supplied with readings from pressure, temperature, and pressure drop across the venturi and density, and other properties. Ensemble based data assimilation methods are among available techniques for back allocation to reservoir formations.
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As the name indicates, multiphase pumps and their mechanical seals can encounter a large variation in service conditions such as changing process fluid composition, temperature variations, high and low operating pressures and exposure to abrasive/erosive media. The challenge is selecting the appropriate mechanical seal arrangement and support system to ensure maximized seal life and its overall effectiveness.John Crane Seal Sentinel – John Crane Increases Production Capabilities with Machine that Streamlines Four Machining Functions into One . Sealsentinel.com. Retrieved on 2011-05-25.
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Morris Muskat (21 April 1906 – 20 June 1998) was an American petroleum engineer. Muskat refined Darcy's equation for single phase flow, and this change made it suitable for the petroleum industry. Based on experimental results worked out by his colleagues, Muskat and Milan W. Meres also generalized Darcy's law to cover multiphase flow of water, oil and gas in the porous medium of a petroleum reservoir. The generalized flow equation provides the analytical foundation for reservoir engineering that exists to this day.
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Howard Brenner (16 March 1929 – 17 February 2014) was a professor emeritus of chemical engineering at Massachusetts Institute of Technology. His research profoundly influenced the field of fluid dynamics, and his research contribution to fundamental principles of fluid dynamics has been deeply honored. His first textbook, Low Reynolds Number Hydrodynamics (with Happel; Prentice-Hall, 1965), earned him a reputation lasting several decades. His profession though fundamental research is on microfluidics, complex liquids, interfacial transport process, emulsion rheology, and multiphase flows.
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A virtual flow meter is a type of an implementation using such methods. Some gas and condensate fields in the North Sea are developed with subsea templates where multiphase flow meters are installed for each well and virtual flow meters for each well are taken in use as a backup for and redundancy to the flow meters. Process models and phase behaviour models are other implementations of rate estimation. With the aid of commercially available software, process models simulate the behaviour of hydrocarbons in the processing plant.
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Materials physics is the use of physics to describe the physical properties of materials. It is a synthesis of physical sciences such as chemistry, solid mechanics, solid state physics, and materials science. Materials physics is considered a subset of condensed matter physics and applies fundamental condensed matter concepts to complex multiphase media, including materials of technological interest. Current fields that materials physicists work in include electronic, optical, and magnetic materials, novel materials and structures, quantum phenomena in materials, nonequilibrium physics, and soft condensed matter physics.
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Spectra of this gas indicate irregular motion, with a typical velocity of 150–200 km s−1. The warm gas traces the X-ray-bright features, again suggesting a multiphase AGN outflow. Using the Spitzer IRS mid-infrared lines were detected (e.g., [Ne ii] 12.81 μm, [Ne iii] 15.55 μm) but no trace of polycyclic aromatic hydrocarbon (PAH) emission. Several sources are identified in the radio at 2.3, 5, and 15 GHz using VLBA data; these sources are aligned in the south–north direction.
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A force field is the collection of parameters to describe the physical interactions between atoms or physical units (up to ~108) using a given energy expression. The term force field characterizes the collection of parameters for a given interatomic potential (energy function) and is often used within the computational chemistry community. The force field makes the difference between good and poor models. Force fields are used for the simulation of metals, ceramics, molecules, chemistry, and biological systems, covering the entire periodic table and multiphase materials.
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Joseph KatzSearch in APS Member Directory Search Results is an Israel-born American fluid dynamicist, known for his work on experimental fluid mechanics, cavitation phenomena and multiphase flow, turbulence, turbomachinery flows and oceanography flows, flow-induced vibrations and noise, and development of optical flow diagnostics techniques, including Particle Image Velocimetry (PIV) and Holographic Particle Image Velocimetry (HPIV). As of 2005, he is the William F. Ward Sr. Distinguished Professor at the Department of Mechanical Engineering of the Whiting School of Engineering at the Johns Hopkins University.
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Index matching is used in liquid-liquid and liquid-solid (Multiphase flow) experimental systems to minimise the distortions that occur in these systems , this is particularly important for systems with many interfaces which become optically inaccessible. Matching the refractive index minimises reflection, refraction, diffraction and rotations that occurs at the interfaces allowing access to regions that would otherwise be inaccessible to optical measurements. This is particularly important for advanced optical measurements like Laser-induced fluorescence, Particle image velocimetry and Particle tracking velocimetry to name a few.
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Subsea trees may range in size and weight from a few tons to approximately 70 tons for high pressure, deepwater (>3000 feet) guidelineless applications. Subsea trees contain many additional valves and accessories compared to surface trees. Typically a subsea tree would have a choke (permits control of flow), a flowline connection interface (hub, flange or other connection), subsea control interface (direct hydraulic, electro hydraulic, or electric) and sensors for gathering data such as pressure, temperature, sand flow, erosion, multiphase flow, single phase flow such as water or gas.
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Zaoui, Matériaux du Nucléaire, Rapport sur la science et la technologie n° 5, Académie des sciences, Paris, éditions Tec & Doc, 2000 ); organisation and chairmanship of international symposia, schools and congresses (EUROMECH 183 symposium in 1984, advanced course at CISME. Sanchez- Palencia, A. Zaoui, Homogenization techniques for composite media, Lecture Notes in Physics, Berlin, Eds, Springer Verlag, 1987 in 1985, IUTAMA. Pineau et A. Zaoui, Micromechanics of Plasticity and Damage of Multiphase Materials (Proc, Pays-Bas, Kluwer Academic Publ, 1996 symposium in 1995, etc.); participation in reading committees (Int. J. Plasticity, J.M.T.A, Eur.
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Miniature synchronous motor used in analog clocks. The rotor is made of permanent magnet. Small synchronous motor with integral stepdown gear from a microwave oven A synchronous electric motor is an AC motor in which, at steady state, the rotation of the shaft is synchronized with the frequency of the supply current; the rotation period is exactly equal to an integral number of AC cycles. Synchronous motors contain multiphase AC electromagnets on the stator of the motor that create a magnetic field which rotates in time with the oscillations of the line current.
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This iterative process is painstakingly slow, costly, and does not lend itself to identifying the optimal engine design specifications. In response to these problems, Los Alamos National Laboratory scientists developed KIVA, an advanced computational fluid dynamics (CFD) modeling code that accurately simulates the in-cylinder processes of engines. KIVA, a transient, three-dimensional, multiphase, multicomponent code for the analysis of chemically reacting flows with sprays has been under development at LANL for decades. The code uses an Arbitrary Lagrangian Eulerian (ALE) methodology on a staggered grid, and discretizes space using the finite volume method.
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2007 Thorsteinn Ingi Sigfusson (IS) – Awarded for research and development in the implementation of hydrogen to power vehicles. Geoffrey Hewitt (UK) – Awarded for developing the idea of fuel generation on the basis of water power. Vladimir Nakoryakov (RUS) - Awarded for the project "Physicotechnical Bases of Power Technologies — Hydrodinamics and Heat Exchange, Non-Stationary and Wave Processes in Multiphase Mediums". 2006 Evgeny Velikhov (RUS), Masaji Yoshikawa (JP) and Robert Aymar (FR) – Awarded for the development of a scientific and technical basis for the creation of the international thermonuclear experimental reactor (ITER Project).
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Milton Spinoza Plesset (7 February 1908 – 19 February 1991) was an American applied physicist who worked in the field of fluid mechanics and nuclear energy. He was elected to the National Academy of Engineering in 1979 for his fundamental contributions to multiphase flows, bubble dynamics, and safety of nuclear reactors.Dr. Milton S. Plesset at National Academy of Engineering Plesset served as Professor of Engineering Science at California Institute of Technology during 1951 to 1978. Notable scientists Andrea Prosperetti and Norman Zabusky finished their doctoral work under Plesset's guidance.
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Lt Gen Xu Anxiang, PLAAF Deputy Commander, revealed the PLAAF has a multiphase roadmap for building a strong, modern air force. He said the building of a strategic force by 2020 would integrate aviation, space power, strike and defense capabilities. When this goal is achieved, the PLAAF's fourth-generation equipment like J-20 and Y-20 will become the backbone of the Air Force's arsenal and J-16 along with J-10 would be main stay of PLAAF. Gen Xu also said information-based combat capabilities will be enhanced.
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More advanced controllers can also query equally advanced devices to respond with their status. This status may be as simple as "off" or "on", or the current dimming level, or even the temperature or other sensor reading. Devices usually plug into the wall where a lamp, television, or other household appliance plugs in; however some built-in controllers are also available for wall switches and ceiling fixtures. The relatively high- frequency carrier wave carrying the signal cannot pass through a power transformer or across the phases of a multiphase system.
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Methods are being developed to allocate back contributions into commingled streams in pipeline, when oil is being transported from a collection of offshore oil fields to facilities terminals onshore in Asia. Recent restructuring in this industry for enhanced oil recovery, deepwater field development, and use of subsea production systems that commingled production flows from multiple oil fields, strengthen the requirements for flexible and accurate allocation systems, to keep up with the transition from conventional well flow testing to prevalence of model simulations, virtual flow meters and multiphase flow meters.
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Aerial view of ICPF site Prague 6 - Suchdol Institute of Chemical Process Fundamentals, Academy of Sciences of the Czech Republic, v.v.i. is one of the six institutes belonging to the CAS chemical sciences section and is a research centre in a variety of fields such as chemistry, biochemistry, catalysis and environment. Its research topics include multiphase reaction systems for the design of chemical synthesis chemical processes and new materials development, energetics and protection of environment. Its national and international reputation is ascertained by its participation in EU financed research projects, such as EUCAARI or MULTIPRO.
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Another method to obtain individual well flow rates takes the state observer approach, where the states to be estimated as the unknown flow rates from individual wells. This approach allows the incorporation of other modes of measurements such as spin-cuts (manual water cut readings) and dynamometer card based inferred rates. The reconciliation of these measurements with the flow tests, along with a systematic mechanism to account for measurement noise, leads to improved per well rate estimation accuracy. Multiphase flow meters have to some degree reduced the need for flow tests and test separators.
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Pin and sleeve connectors Industrial and multiphase plugs and sockets provide a connection to the electrical mains rated at higher voltages and currents than household plugs and sockets. They are generally used in polyphase systems, with high currents, or when protection from environmental hazards is required. Industrial outlets may have weatherproof covers, waterproofing sleeves, or may be interlocked with a switch to prevent accidental disconnection of an energized plug. Some types of connectors are approved for hazardous areas such as coal mines or petrochemical plants, where flammable gas may be present.
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Following graduation he worked during World War II for Westinghouse Electric Corporation in Pennsylvania, conducting fatigue tests on gas turbine blades and designing bearings and lubrication systems for aircraft gas turbines. In 1947 Rylander was appointed assistant professor at UT Austin, where he taught heat and power engineering, machine design, and tribology. He was awarded an MS degree in 1952. He was granted leave of absence to work for a Ph.D. degree on the behavior of multiphase lubricants at Georgia Institute of Technology, which was awarded in 1965.
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Lin followed his advisor Chen Xuejun and most of the mechanical engineering department and moved to Xi'an, where he spent most of his career. A year later, he led a team at Shanghai Boiler Factory to develop China's first once-through boiler. In the late 1970s and early 1980s, Lin spent three years researching gas-liquid two-phase flow measurements, and published his findings in the International Journal of Multiphase Flow in 1982. His research established the "Lin formula" which has been widely used in two-phase flow measurements.
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The positive early results have created great interest for gold-finding efforts, and the Mount Meager massif has proven to be an ideal candidate. Granitic intrusions within the caldera complex include the McDougall Brook Microgranite and the somewhat younger Mount Pleasant Granite. Gold quartz breccias and veins cut the McDougall Brook Microgranite and its volcanic wall- rock, while molybdenum-bismuth-tungsten and later polymetallic mineralization are related to the multiphase Mount Pleasant Granite. The numerous felsic sections are associated with episodes of fractional crystallization in a high- level, zoned magma chamber.
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The multiphase particle-in-cell method (MP-PIC) is a numerical method for modeling particle-fluid and particle-particle interactions in a computational fluid dynamics (CFD) calculation. The MP-PIC method achieves greater stability than its particle-in-cell predecessor by simultaneously treating the solid particles as computational particles and as a continuum. In the MP-PIC approach, the particle properties are mapped from the Lagrangian coordinates to an Eulerian grid through the use of interpolation functions. After evaluation of the continuum derivative terms, the particle properties are mapped back to the individual particles.
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The multiphase particle-in-cell (MP-PIC) method was originally developed for a one-dimensional case in the mid-1990s by P.J. O'Rourke (Los Alamos National Laboratory), who also coined the term MP-PIC. Subsequent extension of the method to two-dimensions was performed by D.M. Snider and O'Rourke. By 2001, D.M. Snider had extended the MP-PIC method to full three-dimensions. Currently, the MP-PIC method is used in commercial software for the simulation of particle-fluid systems and also available in MFiX suite by NETL.
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The PDX steam cooker The Steam Infusion process was first developed in 2000 by Pursuit Dynamics PLC as a method for marine propulsion. The process has since been developed to be used for applications in brewing, food and beverages, public health and safety, bioenergy, industrial licensing, and waste treatment worldwide. On the right a diagram shows how the process creates an environment of vaporised product surrounded by high energy steam. The supersonic steam flow entrains and vaporises the process flow to form a multiphase flow, which heats the suspended particles by surface conduction and condensation.
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The unique self-assembly properties of star shaped polymers make them a promising field of research for use in applications such as drug delivery and multiphase processes such as separation of organic/inorganic materials. Generally, star-shaped polymers have higher critical micelle concentrations, and so lower aggregation numbers, than their analogous, similar molecular weight linear chains. The addition of functional groups to the arms of star-shaped polymers as well as selective solvent choice can affect their aggregation properties. Increasing the number of functional groups while retaining the same molecular weight decreases aggregation numbers.
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Research areas that saw a growth in this period included petroleum research, renewable energy, control room technology and man-machine-communication. From the 1990s IFE gained a leading position in Norwegian energy- and environmental research, with focus on hydrogen storage in metal hydrides, environmental technology, energy systems analysis, solar energy and renewable energy systems. In the area of petroleum technology, IFE has expertise in the areas of tracer technology, corrosion inhibition and multiphase flow assurance. In the 2000s IFE has invested in the area of solar cell research.
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Evaluation of the kidneys, ureters and bladder are discussed separately in the renal imaging section. Cholangiocarcinoma occurring within the extrahepatic biliary tree or intrahepatic cholangiocarcinomas are a common reason for delayed imaging. Cholangiocarcinomas are fibrotic tumors which enhance slowly, and are usually imaged following a 10-15 minute delay. Similarly, adrenal masses can be evaluated with multiphase imaging including an unenhanced CT, portal venous phase and a 10 minute delay CT which allows for evaluation and calculation of the enhancement and washout characteristics aiding in distinguishing benign adrenal adenomas from other adrenal masses.
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ENI and Shell supported the development in Italy of the Pietro Fiorentini meter. Haimo introduced a meter with partial separation, making accurate measurement simpler, but at the expense of a physically larger device. Norway has remained a technology center for MPFM with the Norwegian Society for Oil and Gas Measurement (NFOGM) providing an academic and educational role. Since 1994, MPFM installation numbers have steadily increased as technology in the field has advanced, with substantial growth witnessed from 1999 onwards.Mehdizadeh, P., ‘Multiphase Measuring Advances Continue’, Oil & Gas Journal, 9 July 2001.
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A fluidized bed reactor (FBR) is a type of reactor device that can be used to carry out a variety of multiphase chemical reactions. In this type of reactor, a fluid (gas or liquid) is passed through a solid granular material (usually a catalyst possibly shaped as tiny spheres) at high enough speeds to suspend the solid and cause it to behave as though it were a fluid. This process, known as fluidization, imparts many important advantages to an FBR. As a result, FBRs are used for many industrial applications.
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Since physical properties of hydrocarbons are constantly changing when hydrocarbons from various contributing sources are mixed, affected by heat transfer and transitions in pressure and temperature, owners of hydrocarbon in a commingled material cannot be allocated materials equal to what physically delivered from their well. For instance, two multiphase streams are commingled, one with oil of mole weight 107 and gas of 20 kg/kgmol, the other of 116 and 21 respectively, may result in a commingled stream of 115 kg/kgmol for the oil and mole weight of 20.3 kg/kgmol for the gas. The allocation principles account for this effect.
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The linear induction motor is a simple but powerful type of electric motor used to propel the cars. Rather than using a standard enclosed spinning rotor and drive wheels, there is a long flat magnetic pole plate with closely spaced electric coils. This pole plate mounts on the track underneath the car and a matching metal plate attached to the car moves across the magnetic pole faces. By applying a multiphase alternating current to the poles, the pole plate induces eddy currents into the moving plate and can be used to accelerate or brake the car.
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The Navier–Stokes equations, even when written explicitly for specific fluids, are rather generic in nature and their proper application to specific problems can be very diverse. This is partly because there is an enormous variety of problems that may be modeled, ranging from as simple as the distribution of static pressure to as complicated as multiphase flow driven by surface tension. Generally, application to specific problems begins with some flow assumptions and initial/boundary condition formulation, this may be followed by scale analysis to further simplify the problem. Visualization of (a) parallel flow and (b) radial flow.
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There are many different effective medium approximations, each of them being more or less accurate in distinct conditions. Nevertheless, they all assume that the macroscopic system is homogeneous and, typical of all mean field theories, they fail to predict the properties of a multiphase medium close to the percolation threshold due to the absence of long-range correlations or critical fluctuations in the theory. The properties under consideration are usually the conductivity \sigma or the dielectric constant \epsilon of the medium. These parameters are interchangeable in the formulas in a whole range of models due to the wide applicability of the Laplace equation.
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Train using a multiphase electrification system on the Petit train de la Rhune, France Three-phase AC railway electrification was used in Italy, Switzerland and the United States in the early twentieth century. Italy was the major user, from 1901 until 1976, although lines through two tunnels also used the system; the Simplon Tunnel between Switzerland and Italy from 1906 to 1930 (but not connected to the Italian system), and the Cascade Tunnel of the Great Northern Railway in the United States from 1909 to 1939. The first standard gauge line was in Switzerland, from Burgdorf to Thun (), from 1899 to 1933.
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The National Lab now has 14 commercially operated laboratory facilities managed by eight companies, including two newly installed facilities in FY18 and one new facility manager. Additive Manufacturing Facility: By utilizing a 3D printer, this manufacturing facility can perform station maintenance, build tools, upgrade and install new hardware and repair sections of the ISS in case of an emergency. Its manufacturing capabilities also support a wide range of commercial interests on the ISS. ADvanced Space Experiment Processor (ADSEP): This thermally controlled facility accommodates experiments in cell technology, model organisms, multiphase fluids, solution chemistry, separation science, microencapsulation, and crystal growth.
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A wet gas is any gas with a small amount of liquid present. The term "wet gas" has been used to describe a range of conditions varying from a humid gas which is gas saturated with liquid vapour to a multiphase flow with a 90% volume of gas. There has been some debate as to its actual definition but there is currently no fully defined quantitative definition of a wet gas flow that is universally accepted. Wet gas is a particularly important concept in the field of flow measurement, as the varying densities of the constituent material present a significant problem.
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In 2003 she left the University of Michigan to become Dean of the School of Engineering at Tufts University, and holds a position as Professor of Civil and Environmental Engineering, and Adjunct Professor in Chemical and Biological Engineering. She also directs the Integrated Multiphase Environmental Systems Laboratory at Tufts. She was named University Professor at Tufts in 2015, a prestigious title awarded in recognition of the contributions she has made to her field as well as her commitment to the University's community. In 2016, she was selected as a U.S. Science Envoy by the United States State Department.
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Measurement and interpretation of 2 and 3 phase multiphase flow can also be achieved by using alternative flow measurement technologies such as SONAR. SONAR meters apply the principles of underwater acoustics to measure flow regimes and; can be clamped on to wellheads and flow lines to measure the bulk (mean) fluid velocity of the total mixture which is then post-processed and analyzed along with wellbore compositional information and process conditions to infer the flow rates of each individual phase. This approached can be used in various applications such as black oil, gas condensate and wet gas.
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Nominal frequency and voltage by country Mains electricity by country includes a list of countries and territories, with the plugs, voltages and frequencies they commonly use for providing electrical power to low voltage appliances, equipment, and lighting typically found in homes and offices. (For industrial machinery, see industrial and multiphase power plugs and sockets.) Some countries have more than one voltage available. For example, in North America most sockets are attached to a 120 V supply, but there is a 240 V supply available for large appliances. Often different sockets are mandated for different voltage or current levels.
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Practically, all the heat produced will be utilized throughout all the processes, as it is an adiabatic and isothermal process. Even though, the CFBG process is able to manage huge range of fuels, high gasification yield cannot be achieved for the fuels that are less reactive such as anthracite and pet coke because of the low operating temperature. The flow is also multiphase complex and every distinct particles need to be scaled-up in a different wayA Review of Fluidized Bed Gasification Technology, Todd Pugsley and Nader Mahinpey, 2010, A Review of Fluidized Bed Gasification Technology, pp. 1–24.
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Further, the surface stress on a solid is a directional quantity (a stress tensor) while surface energy is scalar. Fifteen years after Gibbs, J.D. van der Waals developed the theory of capillarity effects based on the hypothesis of a continuous variation of density. He added to the energy density the term c ( abla \rho)^2, where c is the capillarity coefficient and ρ is the density. For the multiphase equilibria, the results of the van der Waals approach practically coincide with the Gibbs formulae, but for modelling of the dynamics of phase transitions the van der Waals approach is much more convenient.
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The concept of permeability is of importance in determining the flow characteristics of hydrocarbons in oil and gas reservoirs, and of groundwater in aquifers Multiphase fluid flow in porous media From Transport in porous media . For a rock to be considered as an exploitable hydrocarbon reservoir without stimulation, its permeability must be greater than approximately 100 md (depending on the nature of the hydrocarbon – gas reservoirs with lower permeabilities are still exploitable because of the lower viscosity of gas with respect to oil). Rocks with permeabilities significantly lower than 100 md can form efficient seals (see petroleum geology). Unconsolidated sands may have permeabilities of over 5000 md.
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Edited by George Eisenman. — NY.: Marcel Dekker, Inc. 1967 His achievements in solving the fundamental problems of chemical thermodynamics are noteworthy. Special mention should be made of the generalisation of the stability conditions for the Gibbs equilibrium to heterogeneous (multicomponent, multiphase) systems (1954). M. Shultz developed a method for calculating changes in the thermodynamic properties of a heterogeneous system from data on the composition of the coexisting phases and on the change in the chemical potential of only one component («method of the third component», so called else «Shultz-Storonkin’s method»). In the frame of the thermodynamic theory existing is the «Filippov-Shultz rule».
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The rotor with permanent magnets or electromagnets turns in step with the stator field at the same rate and as a result, provides the second synchronized rotating magnet field of any AC motor. A synchronous motor is termed doubly fed if it is supplied with independently excited multiphase AC electromagnets on both the rotor and stator. The synchronous motor and induction motor are the most widely used types of AC motor. The difference between the two types is that the synchronous motor rotates at a rate locked to the line frequency since it does not rely on current induction to produce the rotor's magnetic field.
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The 6-year study used a 19-page questionnaire sent to individuals identified from a number of professional health educator organizations across the US. By the end of the multiphase study, the CUP analysts realized that it represented one of the largest national data sets ever assembled of health educators (N=4,030), and found common sets of competencies valued across the majority of health educators.The National Health Educator Competencies Update Project: Celebrating a Milestone and Recommending Next Steps to the Profession - Airhihenbuwa et al. 32 (6): 722 - Health Educ...GD Gilmore, LK Olsen, A Taub, D Connell, 2005, Health Education and Behavior, 32(6):725-737.
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His present work includes turbulence and two-phase flows, granular flow, micro- and nanofluidics, and the biomedical application of bubbles. Professor Lohse was a recipient of the 2019 Max Planck Medal, 2018 Balzan Prize, 2017 Fluid Dynamics Prize, 2012 Batchelor Prize, 2005 Spinoza Prize for his work on turbulence, thermal convection, multiphase flow, microfluidics, sonoluminescence, and was awarded with a knighthood in the Order of the Netherlands Lion in 2010. He is also a member of the Royal Netherlands Academy of Arts and Sciences since 2005,, a member of the National Academy of Engineering since 2017, and a Fellow of the American Physical Society.
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Hydrocarbon accounting has a wider scope, taking advantages of allocation results, it is the petroleum management process by which ownership of extracted hydrocarbons is determined and tracked from a point of sale or discharge back to the point of extraction. In this way, hydrocarbon accounting also covers inventory control, material balance, and practices to trace ownership of hydrocarbons being transported in a transportation system, e.g. through pipelines to customers distant from the production plant. In an allocation problem, contributing sources are more widely natural gas streams, fluid flows or multiphase flows derived from formations or zones in a well, from wells, and from fields, unitised production entities or production facilities.
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Hess is an independent energy company engaged in the exploration and production of crude oil and natural gas, with a position in a key U.S. shale play -- the Bakken in North Dakota. Hess is also one of the largest producers in the deepwater Gulf of Mexico and a key natural gas producer and supplier to Peninsular Malaysia and Thailand. The company is engaged in exploration and appraisal activities offshore Guyana, participating in one of the industry’s largest oil discoveries in the past decade with the first phase of a planned multiphase development of the Liza Field in Guyana underway. Hess is no longer involved in retail sales of petroleum products.
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Rajinder Kumar (born 1934) is an Indian chemical engineer and a former professor at the Indian Institute of Science. He is known for his studies on multiphase phenomena and is an elected fellow of the Indian National Science Academy, Indian Academy of Sciences, and the Indian National Academy of Engineering. The Council of Scientific and Industrial Research, the apex agency of the Government of India for scientific research, awarded him the Shanti Swarup Bhatnagar Prize for Science and Technology, one of the highest Indian science awards for his contributions to Engineering Sciences in 1976. He received the third highest Indian civilian award of the Padma Bhushan in 2003.
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Focusing his work on transport and reaction in nanostructured porous media, Bhatia has contributed to the field of catalysis, specifically in vapour-liquid and reaction equilibria in small pores. He elucidated multiphase reactions in catalyst particles by demonstrating the existence and consequence of partial internal wetting states. He was elected a fellow of the Institution of Chemical Engineers, Australia. He received the ExxonMobil Award for excellence of the Institution of Chemical Engineers in 2009, and the Institution of Chemical Engineers, UK (2008). He served on the ARC's Excellence in Research Australia Panel in 2012, and received the University of Queensland, Vice-Chancellor’s Research Excellence Award (2011).
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After work at the University of Oxford and the AERE, Harwell he took up the position of Lady Trent Professor of Chemical Engineering at the University of Nottingham in 1990 and Head of the Department of Chemical Engineering until 1997. He retained this position until his death in 2017. He was an editor of Chemical Engineering Research and Design: Part A, an Official Journal of the European Federation of Chemical Engineering (EFCE) and had been an organiser and member of scientific committees of the Assembly of World Conferences on Experimental Heat Transfer, fluid mechanics and thermodynamics, as well as the 2007 International Conference on Multiphase Flow (ICMF). At these, and other, conferences he gave keynote lectures.
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Applied Chemistry Applied Chemistry is a key discipline at ministerial level. A research team composed of 5 doctorate supervisors, 12 professors and 10 associate professors engages itself in the discipline. Major research interests include: A. Special Energy Chemistry and Application; B. Synthetic Fine Chemical Products and Their Application; C. Functional Polymer Materials; D. Multiphase Fluid Mass in High-gravity Field; E. Ultra-fine Powder Materials and Their Chemical Reaction; F. Ultra-fine Powder Materials and Their Chemical Reaction. Materials Processing Engineering The discipline of Material Processing Engineering is an applied discipline which mainly deals with external shape and inner construction of materials as well as processing materials into needed parts and products.
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Thus, it can respond to rapidly changing loads, such as modern microprocessors. There is also a significant decrease in switching ripple. Not only is there the decrease due to the increased effective frequency,Guy Séguier, Électronique de puissance, 7th edition, Dunod, Paris 1999 (in French) but any time that n times the duty cycle is an integer, the switching ripple goes to 0; the rate at which the inductor current is increasing in the phases which are switched on exactly matches the rate at which it is decreasing in the phases which are switched off. Another advantage is that the load current is split among the n phases of the multiphase converter.
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Because PTSD can make an individual more likely to experience suicidal ideation, DBT can be an option to stabilize suicidality and aid in other treatment modalities. Some critics argue that while DBT can be used to treat CPTSD, it is not significantly more effective than standard PTSD treatments. Further, this argument posits that DBT decreases self-injurious behaviors (such as cutting or burning) and increases interpersonal functioning but neglects core CPTSD symptoms such as impulsivity, cognitive schemas (repetitive, negative thoughts), and emotions such as guilt and shame. The ISTSS reports that CPTSD requires treatment which differs from typical PTSD treatment, using a multiphase model of recovery, rather than focusing on traumatic memories.
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The World Bank supports the sector through a US$32m loan for the Water Supply and Sanitation in Low-Income Communities Project which is executed by the Ministry of Health.Worldbank: Water Supply and Sanitation in Low-Income Communities The Interamerican Development Bank (IDB) supports the sector through various projects. The US$45m Panama City and Bay of Panama Sanitation Project, approved in 2006 and executed by the Ministry of Health, supports the extension of the capital's sanitation network.IDB: Panama City and Bay of Panama Sanitation Project The sustainable development projects in Darién ProvinceIDB: Darien Sustainable Development and Bocas del Toro ProvinceIDB: Multiphase Sustainable Development Program for Bocas del Toro - Phase II include support of water supply and sanitation systems.
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FEHM is a groundwater model that has been developed in the Earth and Environmental Sciences Division at Los Alamos National Laboratory over the past 30 years. The executable is available free at the FEHM Website. The capabilities of the code have expanded over the years to include multiphase flow of heat and mass with air, water, and CO2, methane hydrate, plus multi- component reactive chemistry and both thermal and mechanical stress. Applications of this code include simulations of: flow and transport in basin scale groundwater systems , migration of environmental isotopes in the vadose zone, geologic carbon sequestration, oil shale extraction, geothermal energy, migration of both nuclear and chemical contaminants, methane hydrate formation, seafloor hydrothermal circulation, and formation of karst.
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Leitner's scientific work focuses on the development of catalysts and catalyst technologies for sustainable chemical processes (Green Chemistry). The focus is on the development and understanding of the mode of action of molecular catalysts, including detailed experimental and computer chemical studies of the mechanisms and structural-effect relationships in organometallic catalysis. Particular attention is paid to new material conversions and the use of new raw materials for catalytic synthesis as well as to the use of modern reaction media (supercritical fluids, ionic liquids, polyethylene glycol (PEG) and others) for catalytic processes. Multiphase catalysis and catalyst immobilization as well as the development of reactional concepts for continuous processes in molecular catalysis are also important research interests.
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By the time Euro-American explorers arrived in the region in the late 17th century and early 18th century, the Cherokee had established numerous villages in the outlying areas of the Unicoi Mountains. The Middle towns-- located in the Robbinsville vicinity-- included Tassetchee, Elijay, and Nequassee. The Overhill towns included Tallassee, Chilhowee, Citico, and numerous other villages in the Little Tennessee Valley at the range's northern extremes, Great Tellico along the Tellico River in modern Tellico Plains, and Great Hiwassee along the Hiwassee River at the western base of Starr Mountain. Excavations conducted at Citico (at the mouth of Citico Creek) revealed that it is a multiphase site, with periods of occupation stretching back thousands of years.
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The oil and gas industry began to be interested in developing MPFMs in the early 1980s, as measurement technology improved, and wellhead separators were costly. Depleting oil reserves, (More water and gas in the produced oil) along with smaller, deeper wells with higher water contents, saw the advent of increasingly frequent occurrences of multiphase flow where the single-phase meters were unable to provide accurate answers. After a lengthy gestation period, MPFMs capable of performing the required measurements became commercially available. Much of the early research was done at the Christian Michelsen research center in Bergen, Norway, and this work spawned a number of spin off companies in Norway leading to the Roxar / Emerson, Schlumberger, Framo, and MPM meters.
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Industry experts have forecast that MPFMs will become feasible on an installation per well basis when their capital cost falls to around US$40,000 – US$60,000. The cost of MPFMs today remains in the range of US$100,000 – US$500,000 (varying with onshore/offshore, topside/subsea, the physical dimensions of the meter and the number of units ordered). Installation of these MPFMs can cost up to 25% of the hardware cost and associated operating costs are estimated at between US$20,000 and $40,000 per year.Scheers, L., Busaidi, K., Parper, M., Halovorsen, M. and Wideroe, T., ‘Multiphase Flow Metering Per Well – Can it be Justified?’, 20th North Sea Flow Measurement Workshop, St. Andrews, Scotland, 2002.
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This multiphase trial aimed to further evaluate the safety of tolerability of Abituzumab in combination therapy with cetuximab and irinotecan in the Phase I portion of the trial. Cetixumab, a monoclonal antibody, that targets epidermal growth factor receptor (EGFR), and irinotecan, a topoisomerase I inhibitor, can be used in combination as standard of care for treating colorectal cancer. The Phase II portion of the trial sought to compare the efficacy of Abituzumab, cetuximab, and irinotecan compared to cetuximab and irinotecan in patients with KRAS (exon 2) wild-type metastatic colorectal cancer. Patients included in the study failed treatment with oxaliplatin, and initial safety studies included comparing Abituzumab, cetuximab, and irinotecan with standard of care.
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Lithium tin Zintl phases, discovered by Eduard Zintl, have been studied as anode materials in lithium-ion energy storage systems for several decades. First reported in 1981 by Robert Huggins, the system has a multiphase discharge curve and stores approximately 1000 mAh/g (Li22Sn5). Tin and its compounds have been extensively studied but, similar to silicon or germanium anode systems, issues associated with volume expansion (associated with gradual filling of p-orbitals and essential cation insertion), unstable SEI formation, and electronic isolation have been studied in an attempt to commercialize these materials. In 2013, work on morphological variation by researchers at Washington State University used standard electroplating processes to create nanoscale tin needles that show 33% lower volume expansion during charging.
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ZEV T series ZEV has 19 electric scooter models The scooters range from the ZEV 3600 with a top speed of and a range of , to the 10 LRC, with a range (at 65% power) of , and a top speed of . ZEV also makes a line of electric motorcycles, full fairing sports bikes referred to as their M-S line. ZEV hub motor ZEV uses a gearless electromagnet powered hub style motor and powers its scooters with lithium batteries, as well as less costly lead/sodium silicate batteries. ZEV's large- diameter, multiphase motors, are cooled using an oil bath arrangement, which lets ZEV run a large motor at high speeds without the power sapping and motor- destroying effects of excess heat.
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The above form for Darcy's law is sometimes also called Darcy's extended law, formulated for horizontal, one-dimensional, immiscible multiphase flow in homogeneous and isotropic porous media. The interactions between the fluids are neglected, so this model assumes that the solid porous media and the other fluids form a new porous matrix through which a phase can flow, implying that the fluid-fluid interfaces remain static in steady-state flow, which is not true, but this approximation has proven useful anyway. Each of the phase saturations must be larger than the irreducible saturation, and each phase is assumed continuous within the porous medium. Based on data from special core analysis laboratory (SCAL) experiments, simplified models of relative permeability as a function of saturation (e.g.
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On the main lines, new border stations had to be constructed with customs facilities and locomotive service. Between the world wars, development focused on existing multiple- track lines and adding a second track to most main lines. An electrification process started, based on Kálmán Kandó's patent on a single-phase 16 kV 50 Hz AC traction and his newly designed MÁV Class V40 locomotive, which used a rotary phase converter unit to transform the catenary high voltage current into multiphase current with regulated low voltage that fed the single multi- phase AC induction traction motor. Most main lines' cargo and passenger trains were hauled by the MÁV Class 424 steam locomotive, which became the MÁV's workhorse in the late steam era.
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The fundamental physics upon which the technique is based provides high precision and accuracy in the measurement of interplanar spacings, sometimes to fractions of an Ångström, resulting in authoritative identification frequently used in patents, criminal cases and other areas of law enforcement. The ability to analyze multiphase materials also allows analysis of how materials interact in a particular matrix such as a pharmaceutical tablet, a circuit board, a mechanical weld, a geologic core sampling, cement and concrete, or a pigment found in an historic painting. The method has been historically used for the identification and classification of minerals, but it can be used for nearly any material, even amorphous ones, so long as a suitable reference pattern is known or can be constructed.
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Kubity is powered by a proprietary 3D crystallization engine known as "Paragone"; a technology developed by SPK Technology. Paragone takes constrained information from a 3D file and runs it through the "BlockWave" algorithm (US Patent 10,482.629), also developed by SPK Technology. BlockWave is a multiphase optimization algorithm that combines 3D design, data compression, decimation and rendering optimization, web and mobile transfer, and mixed reality headset integration to create a crystallized universal format of the original file. One phase of the BlockWave algorithm is based on the quadric-based polygonal surface simplification algorithm, performed using predefined heuristics, and is associated with a plurality of simplified versions of the 3D model, each version being associated with a predefined level of detail adapted to the user specific end device.
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A new technique, pill enteroscopy, has been a major advance in diagnosis, especially in the small bowel which is difficult to reach with traditional endoscopy. With this technique a pill that contains a video camera and radio transmitter is swallowed, and pictures of the small intestine are sent to a receiver worn by the patient. Recently, multiphase CT angiography (without positive oral contrast) has been shown to play a promising role in the diagnoses of small and large bowel angiodysplasia, especially when associated with active hemorrhage. Angiodysplasiae in the small bowel can also be diagnosed and treated with double-balloon enteroscopy, a technique involving a long endoscopic camera and overtube, both fitted with balloons, that allow the bowel to be accordioned over the camera.
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If connections to the rotor coils of a three-phase motor are taken out on slip-rings and fed a separate field current to create a continuous magnetic field (or if the rotor consists of a permanent magnet), the result is called a synchronous motor because the rotor will rotate synchronously with the rotating magnetic field produced by the polyphase electrical supply. Another synchronous motor system is the brushless wound-rotor doubly fed synchronous motor system with an independently excited rotor multiphase AC winding set that may experience slip-induction beyond synchronous speeds but like all synchronous motors, does not rely on slip- induction for torque production. The synchronous motor can also be used as an alternator. Contemporary synchronous motors are frequently driven by solid state variable-frequency drives.
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For a discussion see ; ; ; In one model, the EAO evolved from an accretionary orogeny involving the amalgamation of arcs and evolved into a collisional orogeny when the Neoproterozoic continent Azania collided with the Congo-Tanzania-Bangweulu Block at .Azania was defined by and named by In another model, the assembly of East Gondwana was a multiphase process which included two main periods of orogenesis: the older EAO ( ) and the younger Kuunga Orogeny ( ). In the former scenario the Kuunga Orogeny of the latter scenario are two coeval events: the collisions between India and Australia-East Antarctica and Azania and India. Furthermore, the two orogens of the latter scenario intersect in Madagascar, the proposed location of the Azania-India collision, and this part of the Kuunga Orogeny should be renamed the Malagasy Orogeny.
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A small motor-generator set A motor-generator set, or the similar rotary converter, is not strictly a rectifier as it does not actually rectify current, but rather generates DC from an AC source. In an "M-G set", the shaft of an AC motor is mechanically coupled to that of a DC generator. The DC generator produces multiphase alternating currents in its armature windings, which a commutator on the armature shaft converts into a direct current output; or a homopolar generator produces a direct current without the need for a commutator. M-G sets are useful for producing DC for railway traction motors, industrial motors and other high-current applications, and were common in many high-power D.C. uses (for example, carbon-arc lamp projectors for outdoor theaters) before high-power semiconductors became widely available.
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In detail, the atmospheric maturation process only occurs on the smectite rind, by means of heterogeneous and multiphase reactions producing sulfates as the result of H2SO4 attack on the minerals of the rind. This would lead to the rapid transformation of some primary minerals into products of atmospheric neoformation secondary minerals): the sulfates (mainly the gypsum) would be the product of H2SO4 attack on the interlayer cations of the smectites, which would gradually destroy the octahedral and tetrahedral sheets of phyllosilicates creating mixed sulfates. The alunite - jarosite found in the smectite rind would have a similar origin. If acid attack progresses further, the phyllosilicate grains would be completely destroyed, producing amorphous silica and releasing Fe. Since biogenic exoskeletons have no signs of corrosion, they must have been incorporated after the acid attack described above, probably simultaneously with the incorporation of sea salt.
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Between 1984 and 1989 he worked at the Mathematical Institute at the University of Oxford, largely on both applications and modelling within physiology and biology. In 1989 he joined a commercial consulting company working in the environmental sciences, building up a mathematical modelling group on multidisciplinary projects in the UK, Europe, US and Japan. His research ranged from the application of fractals to simulating subsurface environments (micro medium structure controlling channelling flow and dispersion phenomena at the macroscopic scale), and non-linear multiphase (solutes, gases, and especially colloidal) dispersion processes, fully coupled chemical-temperature–hydration systems, through to the development of frameworks for estimating uncertainties within risk assessments, and the analysis of public risk perception. He has developed models and methods for analyzing large networks (range dependent random graphs) occurring within the biosciences, such as in genome, proteome and metabolome interactions.
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Early detection of pancreatic cancer biomarkers was accomplished using SERS-based immunoassay approach. A SERS-base multiplex proteinbiomarker detection platform in a microfluidic chip to detect is used to detect several protein biomarkers to predict the type of disease and critical biomarkers and increase the chance of diagnosis between diseases with similar biomarkers (PC, OVC, and pancreatitis). It is generally agreed that general screening of large groups for pancreatic cancer is not at present likely to be effective, and outside clinical trials there are no programmes for this. The European Society for Medical Oncology recommends regular screening with endoscopic ultrasound and MRI/CT imaging for those at high risk from inherited genetics, in line with other recommendations, which may also include CT. For screening, special CT scanning procedures may be used, such as multiphase CT scan.
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It covers a wide range of physical and computational issues in the field of porous/fractured-media modeling. The book starts with a more general theory for all relevant flow and transport phenomena on the basis of the continuum mechanics, systematically develops the basic framework for important classes of problems (e.g., multiphase/multispecies non-isothermal flow and transport phenomena, variably saturated porous media, free-surface groundwater flow, aquifer-averaged equations, discrete feature elements), introduces finite element methods for solving the basic multidimensional balance equations, in detail discusses advanced numerical algorithms for the resulting nonlinear and linear problems, and completes with a number of benchmarks, applications and exercises to illustrate the different types of flow, mass and heat transport problems (e.g., subsurface flow and seepage problems, unsaturated-saturated flow, advective-diffusion transport, saltwater intrusion, geothermal and thermohaline flow).
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IODP expeditions have investigated a wide range of Earth science topics, including past climate and ocean conditions, monsoon systems, seismogenic zones, the formation of continental crust and ocean basins, major extinction events, the role of serpentinization in driving hydrothermal systems, and the temperature limits of life in the deep biosphere. An early outcome of the program harkens back to the original motivation for scientific ocean drilling with Project Mohole – drilling and sampling across the Mohorovičić discontinuity (Moho) and into the upper part of Earth's mantle. Expedition 360 was the initial part a multiphase project whose goal, among others, is to directly sample the mantle for the first time. The expedition took place near the Southwest Indian Ridge at a location where the crust is particularly thin due to the formation of an oceanic core complex. Expedition 360 completed 790 meters of drilling and IODP plans to return to the site in the coming years to continue the research.
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Giannakis and his research group have contributed state-of-the-art signal processing, machine learning, and optimization algorithms tailored for monitoring and managing contemporary power grids. Critical to monitoring have been innovative approaches to power system state estimation, including robust and distributed solvers based on semidefinite programing, and deep neural networks; optimal placement of phasor measurement units to facilitate situational awareness; efficient identification of bad data and power line outages using sparsity to effectively flag power blackouts; and forecasting of demand, real-time load elasticity and pricing for electric vehicle charging, as well as prediction of electricity market prices. Seminal contributions for managing the smart power grid include distributed scheduling even when residential control messages are lost; decentralized optimal power flow for microgrids; active and stochastic reactive power management with renewables (wind and photovoltaics); large-scale demand response for market clearing; patents on optimal dispatch of photovoltaic inverters in residential power distribution; voltage regulation using deep reinforcement learning, and ergodic energy control leveraging resource variability for multiphase distribution grids.
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André Zaoui's scientific work covers the fields of research, training and collective research animation. They are focused on the transition from microscopic to macroscopic material mechanics, at the crossroads between the mechanics of continuous media and materials science. His research work has been devoted to investigating the relationships between the microstructure of mesoscale materials (scale of polycrystal grains, inclusions or fibres in composites, phase domains in multiphase materials...) and their macroscopic mechanical behaviour, both in deformation and damage. In this framework, his contributions focus on the design, development and use of theoretical, methodological and experimental tools to link the microscopic and macroscopic scales in materials mechanics. He first (1964-72) studied the viscoplasticity of metals, in particular updating and interpreting the phenomenon of "creep hesitation ":L. Brun, A. Zaoui, « Sur l’hésitation au fluage, C. Gr. F », Rhéologie, 5, (1967), p. 267-284 to this end, he contributed to the development of models of the transition from single to polycrystal in elasto(visco)plasticity by proposing a critique of previous models and a secant formulation of the self-coherent model for non-linear behaviours.A. Zaoui, « Effets de désorientation sur la viscoplasticité de polycristaux C.F.C. », Int.
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