Academic literature on the topic 'Membranes compressor machines'

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Journal articles on the topic "Membranes compressor machines"

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Amaliyah, Novriany. "Analisis Proses Dewatering Konsentrat Mineral pada PT. Freeport Indonesia." Jurnal Teknik Mesin Sinergi 19, no. 2 (2021): 252. http://dx.doi.org/10.31963/sinergi.v19i2.3376.

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A concentrate treatment process is needed to improve the quality of the concentrate. Processing of copper minerals by drying concentrate or dewatering. The slurry concentrate dewatering process is intended to inhibit the rate of damage to the concentrate, and it is easy to distribute the concentrate through shipping. PT. Freeport Indonesia has 2 types of machines for the dewatering slurry process, Rotary Dryer and VPA (Vertical Pressure Airblow). The dryer dries the slurry by evaporating the water in the slurry through a combustion process with temperatures reaching 1500o F. While the VPA mach
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Li, Bo, Jianguo Zhu, Chengcheng Liu, Yongjian Li, and Gang Lei. "Comparative Study of Permanent-Magnet Synchronous Machines with Different Rotor Topologies for High-Speed Applications." Applied Sciences 12, no. 9 (2022): 4375. http://dx.doi.org/10.3390/app12094375.

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High-speed permanent-magnet synchronous machines (HSPMSMs) are an attractive option for proton-exchange membrane fuel-cell systems. Various HSPMSMs have been developed in the past few years. However, it is difficult to judge which the best candidate is. In this paper, aimed at driving a fuel cell vehicle air compressor, four permanent-magnet machines with different rotor topologies were designed and are compared in terms of electromagnetic, mechanical, rotor-dynamics, and thermal performance. The main topologies of these HSPMSMs are introduced and explained. Then, the electromagnetic and mecha
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Li, Bo, Jianguo Zhu, Chengcheng Liu, Yongjian Li, and Gang Lei. "Comparative Study of Permanent-Magnet Synchronous Machines with Different Rotor Topologies for High-Speed Applications." Applied Sciences 12, no. 9 (2022): 4375. http://dx.doi.org/10.3390/app12094375.

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High-speed permanent-magnet synchronous machines (HSPMSMs) are an attractive option for proton-exchange membrane fuel-cell systems. Various HSPMSMs have been developed in the past few years. However, it is difficult to judge which the best candidate is. In this paper, aimed at driving a fuel cell vehicle air compressor, four permanent-magnet machines with different rotor topologies were designed and are compared in terms of electromagnetic, mechanical, rotor-dynamics, and thermal performance. The main topologies of these HSPMSMs are introduced and explained. Then, the electromagnetic and mecha
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Li, Bo, Jianguo Zhu, Chengcheng Liu, Yongjian Li, and Gang Lei. "Comparative Study of Permanent-Magnet Synchronous Machines with Different Rotor Topologies for High-Speed Applications." Applied Sciences 12, no. 9 (2022): 4375. http://dx.doi.org/10.3390/app12094375.

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High-speed permanent-magnet synchronous machines (HSPMSMs) are an attractive option for proton-exchange membrane fuel-cell systems. Various HSPMSMs have been developed in the past few years. However, it is difficult to judge which the best candidate is. In this paper, aimed at driving a fuel cell vehicle air compressor, four permanent-magnet machines with different rotor topologies were designed and are compared in terms of electromagnetic, mechanical, rotor-dynamics, and thermal performance. The main topologies of these HSPMSMs are introduced and explained. Then, the electromagnetic and mecha
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Huo, Weiwei, Weier Li, Chao Sun, Qiang Ren, and Guoqing Gong. "Research on Fuel Cell Fault Diagnosis Based on Genetic Algorithm Optimization of Support Vector Machine." Energies 15, no. 6 (2022): 2294. http://dx.doi.org/10.3390/en15062294.

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The fuel cell engine mechanism model is used to research fault diagnosis based on a data-driven method to identify the failure of proton exchange membrane fuel cells in the process of operation, which leads to the degradation of system performance and other problems. In this paper, an extreme learning machine and a support vector machine are applied to classify the usual faults of fuel cells, including air compressor faults, air supply pipe and return pipe leaks, stack flooding faults and temperature controller faults. The accuracy of fault classification was 78.67% and 83.33% respectively. In
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Gavrilova, E. G., V. M. Teplov, D. M. Prasol, V. V. Burykina, E. A. Aleksandrova, and L. M. Kalmanson. "Successful cardiopulmonary resuscitation using extracorporeal membrane oxygenation (clinical case)." Messenger of ANESTHESIOLOGY AND RESUSCITATION 20, no. 1 (2023): 64–68. http://dx.doi.org/10.24884/2078-5658-2023-20-1-64-68.

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A clinical case of treatment of a 64-year-old patient with cardiac arrest is presented. In the complex of resuscitation measures, an automatic chest compression machine was used, and upon admission to the hospital, venoarterial extracorporeal membrane oxygenation was connected as the main method of maintaining effective blood circulation as soon as possible. The interaction of a multidisciplinary team was demonstrated, the features of decision-making when choosing a hemodynamic support method, the complications that arose and possible difficulties were described.
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Rabinovitz, Isaac, Ilene K. Gipson та Arthur M. Mercurio. "Traction Forces Mediated by α6β4 Integrin: Implications for Basement Membrane Organization and Tumor Invasion". Molecular Biology of the Cell 12, № 12 (2001): 4030–43. http://dx.doi.org/10.1091/mbc.12.12.4030.

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The integrin α6β4, a laminin receptor that stabilizes epithelial cell adhesion to the basement membrane (BM) through its association with cytokeratins, can stimulate the formation and stabilization of actin-rich protrusions in carcinoma cells. An important, unresolved issue, however, is whether this integrin can transmit forces to the substrate generated by the acto-myosin system. Using a traction-force detection assay, we detected forces exerted through α6β4 on either laminin-1 or on an anti-α6 antibody, demonstrating that this integrin can transmit forces without the need to engage other int
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Prochaska, Frantisek, Karel Nejezchleb, Jiri Benes, Ondrej Matousek, and David Tomka. "YAG Laser Rod 3D Corrective Process Optimization through Tool Influent Function Shape Inspection." Applied Sciences 10, no. 22 (2020): 8194. http://dx.doi.org/10.3390/app10228194.

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Due to the increasing demands on the quality of solid-state laser active media production based on yttrium aluminum garnet Y3Al5O12 in the form of rods with precisely machined faces, the possibilities of applying subaperture 3D corrective polishing in this segment of optical production were studied. For the considered laser rod diameters of up to 10 mm, the corrective process had to be optimized to achieve a stable, suitably shaped tool influence function at the full width at half maximum of approximately 1.5 mm, enabling 3D shape corrections with sufficient lateral resolution. For this purpos
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Lamano, Jonathan B., Grace G. Bushnell, Hongyu Chen, et al. "Force Characterization of Intracranial Endovascular Embolization." Neurosurgery 75, no. 6 (2014): 707–16. http://dx.doi.org/10.1227/neu.0000000000000525.

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Abstract Background: Intraoperative rupture (IOR) is a rare, but potentially morbid complication of endovascular aneurysm coil embolization. Yet, IOR predictors have remained relatively uninvestigated in relation to coil design. Objective: To develop a novel in vitro aneurysm model to characterize forces exerted by coils of different design on the aneurysm during endovascular embolization that are hypothesized to contribute to IOR. Methods: A 3-mm saccular aneurysm model was developed with flat latex membrane at the dome apex. Membrane deflection was observed throughout simulated embolization
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Qu, Chengqing, Robyn Roth, Pongpratch Puapatanakul, et al. "Three-Dimensional Visualization of the Podocyte Actin Network Using Integrated Membrane Extraction, Electron Microscopy, and Machine Learning." Journal of the American Society of Nephrology 33, no. 1 (2021): 155–73. http://dx.doi.org/10.1681/asn.2021020182.

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BackgroundActin stress fibers are abundant in cultured cells, but little is known about them in vivo. In podocytes, much evidence suggests that mechanobiologic mechanisms underlie podocyte shape and adhesion in health and in injury, with structural changes to actin stress fibers potentially responsible for pathologic changes to cell morphology. However, this hypothesis is difficult to rigorously test in vivo due to challenges with visualization. A technology to image the actin cytoskeleton at high resolution is needed to better understand the role of structures such as actin stress fibers in p
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Dissertations / Theses on the topic "Membranes compressor machines"

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Пчелінцев, Віктор Олександрович, Виктор Александрович Пчелинцев, Viktor Oleksandrovych Pchelintsev та ін. "Конструкционная прочность материала мембран компрессорных машин". Thesis, Издательство СумГУ, 2011. http://essuir.sumdu.edu.ua/handle/123456789/21684.

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Рассматриваются особенности конструктивного исполнения мембранного компрессора и действие эксплуатационных факторов на долговечность и надежность мембраны из тонколистового материала из мартенситностареющей стали 09Х15Н8Ю. Показано, что с целью повышения эксплуатационной надежности мембран, необходимо использовать ленту, в структуре которой содержится определенное количество наклепанного остаточного аустенита. Это позволяет претерпевать дополнительное мартенситное превращение при действии пиковых нагрузок в локальных участках и повышает конструкционную прочность. При цитировании документа, ис
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Conference papers on the topic "Membranes compressor machines"

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Han, Y. L., M. Young, and E. P. Muntz. "Performance of Micro/Meso-Scale Thermal Transpiration Pumps at Low Pressures." In ASME 2004 International Mechanical Engineering Congress and Exposition. ASMEDC, 2004. http://dx.doi.org/10.1115/imece2004-61807.

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The Knudsen Compressor is a solid-state micro/meso-scale gas roughing pump based on the rarefied gas phenomena of thermal transpiration. Knudsen Compressors operate by imposing a temperature gradient across a high porosity, low thermal conductivity transpiration membrane, typically a silicon aerogel membrane. Previous optimization studies have concluded that significant reductions of both energy consumption and device volume per unit throughput and pressure difference for a given pressure ratio can be achieved when each stage of the cascade operates with a Knudsen number based on the mean pore
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Williamson, A. J., and K. A. Sallam. "Human-Powered Desalination Unit." In ASME 2019 International Mechanical Engineering Congress and Exposition. American Society of Mechanical Engineers, 2019. http://dx.doi.org/10.1115/imece2019-12046.

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Abstract The objective of this research is to design a human-powered desalination unit that can provide safe drinking water for a typical household in developing countries. The hypothesis of our study is that a human-powered machine operating on a Mechanical Vapor Compression (MVC) cycle can provide economically- and technologically-affordable drinking water without the use of expensive RO membranes. Thermodynamic analysis for human-powered MVC cycle with minimized pressure difference and small surface area is conducted. The design space included the following limitations: (i) only one compres
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Lewis, Ryan, Yunda Wang, Paul Schroeder, Collin Coolidge, Ray Radebaugh, and Y. C. Lee. "Micro Cryogenic Coolers With Mixed Refrigerants." In ASME 2013 International Technical Conference and Exhibition on Packaging and Integration of Electronic and Photonic Microsystems. American Society of Mechanical Engineers, 2013. http://dx.doi.org/10.1115/ipack2013-73290.

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A number of small electronic devices benefit from micro-scale low temperature operation. Recently we have developed micro cryogenic coolers (MCCs) using a low-pressure, mixed-refrigerant Joule-Thomson cycle. The cryocoolers utilizes a MEMS-enabled gas compressor coupled to a micro cold stage. Two cold stages have been developed: one which uses a fiber-enabled heat exchanger assembled to a micro-machined throttling valve, and another which uses a MEMS-based heat exchanger. A microcompressor has been developed which uses MEMS-based check valves coupled to a membrane, which is actuated with a mec
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Walton, James F., Michael J. Tomaszewski, Crystal A. Heshmat, and Hooshang Heshmat. "On the Development of an Oil-Free Electric Turbocharger for Fuel Cells." In ASME Turbo Expo 2006: Power for Land, Sea, and Air. ASMEDC, 2006. http://dx.doi.org/10.1115/gt2006-90796.

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Proton Exchange Membrane, fuel cells intended for automotive applications require widely varying flows of contaminant free air for high efficiency and successful longterm operation. One machine being considered for this application is the oil-free electric turbocharger, which combines a centrifugal compressor, radial inflow turbine, permanent magnet electric motor and air lubricated compliant foil bearings. In this paper the results of a preliminary system design study integrating a motor, foil bearings and aerodynamic wheels, as well as performance testing of a crucial element, the compliant
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