Results 11 to 20 of about 26,692 (204)
Incremental Clustering for Predictive Maintenance in Cryogenics for Radio Astronomy [PDF]
SensorsIn a cooling system for radio astronomy receivers, maintaining cold heads and compressors is essential for consistent performance. This project focuses on monitoring the power currents of the cold head’s motor to address potential mechanical ...
Alessandro Cabras +4 more
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Surface-confined molecular coolers for cryogenics [PDF]
, 2012 An excellent molecule-based cryogenic magnetic refrigerant, gadolinium acetate tetrahydrate, is here used to decorate selected portions of silicon substrate. By quantitative magnetic force microscopy for variable applied magnetic field near liquid-helium
Arauzo, Ana +7 more
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Hydrodynamic and Thermodynamic Behavior of Liquid Methane in a Vertical Feed Pipe [PDF]
Journal of Applied Fluid MechanicsDuring the chill-down procedure for a space application system, a multiphase flow of extremely cold propellants will undoubtedly occur in the feed lines.
K. Raj, P. R. L. Raj
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Energies, 2023 Three distinct thermodynamic analysis models are developed and applied to a renowned cryogenic engine (PPG-102), namely the isothermal model, the ideal Schmidt model, and the ideal adiabatic model. Through a comparative analysis, the theoretical outcomes
George Antonakos +3 more
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Induction methods used in low temperature physics [PDF]
, 1975 A study has been made of induction bridges used in low temperature physics.\ud \ud In Part 1 the design of a mutual inductance bridge of the Hartshorn type is discussed.
Caspari, M. +3 more
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Review of the Liquid Hydrogen Storage Tank and Insulation System for the High-Power Locomotive
Energies, 2022 Hydrogen has been attracting attention as a fuel in the transportation sector to achieve carbon neutrality. Hydrogen storage in liquid form is preferred in locomotives, ships, drones, and aircraft, because these require high power but have limited space.
Daehoon Kang, Sungho Yun, Bo-kyong Kim
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Characterization and Modeling of Quantum Dot Behavior in FDSOI Devices
IEEE Journal of the Electron Devices Society, 2022 A compact analytical model is proposed along with a parameter extraction methodology to accurately capture the steady-state (DC) sequential tunneling current observed in the subthreshold region of the transfer $I_{DS}-V_{GS}$ characteristics of MOSFETs
S. Pati Tripathi +11 more
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Superconducting electronics [PDF]
, 1994 During the last decades superconducting electronics has been the most prominent area of research for small scale applications of superconductivity. It has experienced quite a stormy development, from individual low frequency devices to devices with high ...
Rogalla, Horst
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Characterization and Modeling of Mismatch in Cryo-CMOS
IEEE Journal of the Electron Devices Society, 2020 This paper presents a device matching study of a commercial 40-nm bulk CMOS technology operated at cryogenic temperatures. Transistor pairs and linear arrays, optimized for device matching, were characterized over the temperature range from 300 K down to
P. A. T Hart +4 more
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Energies, 2023 The electric capacitance tomography (ECT) technique has been widely used in phase distribution reconstruction, while the practical application raised nonideal noise and other errors for cryogenic conditions, requiring a more accurate algorithm.
Ze-Nan Tian +3 more
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