Results 211 to 220 of about 855,728 (251)

Ultra Low Temperature Microturbine for Magic Angle Spinning System

Journal of Fluids Engineering, 2022
Abstract We investigate the fluid dynamics of a microturbine system that is applied in a device for chemical and biological analysis—a so-called magic angle spinning (MAS) nuclear magnetic resonance (NMR) probe. The present system is utilized in a wide temperature range from 45 K to 293 K. Pressurized air, nitrogen, or helium are used to
Herzog, Nicoleta, Weber, Alexander Séverin, Purea, Armin, Osen, David, Knott, Benno, Engelke, Frank, Wilhelm, Dirk   +6 more
openaire   +1 more source

Crystallography of Biological Macromolecules at Ultra-Low Temperature

Annual Review of Biophysics and Biophysical Chemistry, 1990
EQUIPMENT FOR CRYOCRYSTALLOGRAPHY . . . . . . . " " .... """"" ...... " ....... "." ...... ,,. 113 Heater-Generated Gas Flow" ... . . . "" ... """" ...... " ...... "" ...... """ ...... "" ...... " ..... """".. 114 Heat-Exchanger System "'"'' ' ' ' ' '''''' ' ' ' ' ' ' ' ' ' ' ' ' ' ' ' ' ' ' ' ' ' ' ' ' ''''''''' ''''' ' ' ' ' ' ' ' ' ' ' '' ' ' ' ' '
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Rechargeable Battery for Ultra Low Temperature Environments

ECS Meeting Abstracts, 2023
Rechargeable energy storage systems that can efficiently operate at ultra-low temperatures down to -50°C or lower are needed to support Arctic zone development and aerospace exploration. Existing batteries today such as Li-ion and Pb-acid batteries all lose functions at colder temperatures. We have discovered a battery chemistry for which the amount
Duhan Zhang, Yet-Ming Chiang
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Ultra low temperature batteries for Martian applications

IECEC-97 Proceedings of the Thirty-Second Intersociety Energy Conversion Engineering Conference (Cat. No.97CH6203), 2002
The Mars Microprobes are a secondary payload on the 1998 Mars Surveyor Lander Mission. The power source for the Microprobes will be two lithium primary batteries. The batteries will provide power for all the Microprobe instruments and data relays during all phases of the mission. The batteries will be designed to survive the peak landing shock that may
F. Deligiannis, H. Frank, E. Davies, P.G. Russell, T.B. Reddy   +4 more
openaire   +1 more source

Ultra-low shipping temperatures for cell therapies

Cytotherapy, 2020
Background & Aim Cell therapies require a cold chain delivery as part of the production and delivery process. Whether following an autologous or allogeneic route, a common workflow for manufacturing cell therapies consists of collecting a cell sample from a healthy donor or a patient, cryopreserving and shipping it to a manufacturing site for ...
J. Meneghel, P. Kilbride, W. Shingleton, J. Morris   +3 more
openaire   +1 more source

Autocompensating device for ultra-low temperature measurements

Cryogenics, 1989
Abstract A noise-protected meter for ultra-low temperatures with a thermoresistor symmetrically connected to a low noise preamplifier at the input and with a driftless digital lock-in detector at the output is described. The negative feedback circuit includes a multiplier of the analog signal and the digital code.
Yu.F Kiselev, A.N Chernikov, N.L Gorodishenin, V.A Evdokimov, S.S Katushonok   +4 more
openaire   +1 more source

Camera design in ultra-low temperature vessel

2012 International Conference on Computer Science and Information Processing (CSIP), 2012
According to special application, surveillance camera working in the ultra-low temperature and high pressure vessel is designed. By request of optics and electronics system on temperature, research focus on the design from selection of the structure material, thermal insulation, the adaptability of optical system in the ultra-low temperature and high ...
null Wu Li, null Cao Jian-zhong, null Yan A-qi, null Wu Deng-shan, null Zhang Zhao-hui, null Zhang Hai-feng, null Zhu Qing, null Dong Sen, null Zhang Jian   +8 more
openaire   +1 more source

Ultra-Low Temperature Cryoablation for Atrial Fibrillation

JACC. Clinical electrophysiology, 2022
Ultra-low temperature cryoablation (ULTC) is a novel ablation modality aiming to combine the effectiveness of surgical lesion delivery with percutaneous safety to improve outcomes in catheter ablations of atrial fibrillation, particularly in persistent AF (PsAF).
de Potter, Tom, Klaver, Martijn, Babkin, Alex, Iliodromitis, Konstantinos, Hocini, Meleze, Cox, Jim, Boersma, Lucas   +6 more
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Energy scavenging from ultra-low temperature gradients

Energy & Environmental Science, 2019
Thermal energy harvesting from natural resources and waste heat is becoming critical due to ever-increasing environmental concerns.
Ravi Anant Kishore, Brenton Davis, Jake Greathouse, Austin Hannon, David Emery Kennedy, Alec Millar, Daniel Mittel, Amin Nozariasbmarz, Min Gyu Kang, Han Byul Kang, Mohan Sanghadasa, Shashank Priya   +11 more
openaire   +1 more source

Population difference thermometry for ultra-low temperatures

Journal of Low Temperature Physics, 1992
We report measurements of the asymmetry of the intensities of the quadrupolar fine structure of NMR lines in ferromagnetic MnSb down to 30 mK. The asymmetry ratios provide a means of measuring the temperature, and is an example of the use of population difference thermometry as a primary thermometer for ultra-low temperatures.
P. M. Andersen, N. S. Sullivan, B. Andraka, J. S. Xia, E. D. Adams   +4 more
openaire   +1 more source