Results 21 to 30 of about 138,402 (297)

Cryogenic technology for infrared detection in space

open access: yesScientific Reports, 2022
Cryogenic technology has been developed cooperatively with infrared detection technology, which is of great significance for the development of space science and technology.
Yinan Han, Ankuo Zhang
doaj   +1 more source

Modeling of cryogenic sloshing including heat and mass transfer [PDF]

open access: yes, 2010
The paper discusses heat and mass transfer during sloshing of cryogenic liquids. Experiments have been executed to investigate this. The experimental results are analyzed and CFD tools are used to create a better understanding of the physical processes ...
van Foreest, Arnold, Arnold Van Foreest
core   +1 more source

Effects of Surface Waviness on the Nonlinear Vibration of Gas Lubricated Bearing-Rotor System

open access: yesShock and Vibration, 2018
This paper presents the effects of the surface waviness on the nonlinear dynamic performance of a gas bearing-rotor system. The coupled vibration with the elastomer is taken into consideration to fit the actual engineering application. The effects of the
Jian Li   +3 more
doaj   +1 more source

CFD Investigation on Movement Features of Hydrogen Bubble under Microgravity Environment

open access: yesEnergies, 2022
A designed cryogenic upper stage adopted liquid hydrogen and liquid oxygen (LH2/LO2) as an aerospace propellant. During a zero-gravity coast period in space, the wall heat leakage into the delivery tube could induce liquid propellant evaporation and two ...
Lei Wang   +5 more
doaj   +1 more source

Validation of new device with pneumatic sensor for measurement and recording of arterial blood pressure [PDF]

open access: yesEPJ Web of Conferences, 2019
This paper presents construction, operating principle and initial study of new device for measurement and recording of arterial blood pressure, created at Wroclaw University of Science and Technology.
Kuźma Joanna   +2 more
doaj   +1 more source

Structural and biochemical insights into PsEst3, a new GHSR-type esterase obtained from Paenibacillus sp. R4

open access: yesIUCrJ, 2023
PsEst3, a psychrophilic esterase obtained from Paenibacillus sp. R4, which was isolated from the permafrost of Alaska, exhibits relatively high activity at low temperatures. Here, crystal structures of PsEst3 complexed with various ligands were generated
Jonghyeon Son   +6 more
doaj   +1 more source

PLC Automation and Control Strategy in a Stirling Solar Power System

open access: yesEnergies, 2020
The Stirling engine together with a solar concentrator represents a solution for increasing energy efficiency. Thus, within the National Research and Development Institute for Cryogenic and Isotopic Technologies, an automation system was designed and ...
Dan-Adrian Mocanu   +6 more
doaj   +1 more source

Perspective for the Safe and High-Efficiency Storage of Liquid Hydrogen: Thermal Behaviors and Insulation

open access: yesHydrogen
Liquid hydrogen is a promising energy carrier in the global hydrogen value chain with the advantages of high volumetric energy density/purity, low operating pressure, and high flexibility in delivery.
Haoren Wang   +4 more
doaj   +1 more source

Development of a prototype test rig for a cryogenic, marine, heavy lift, buoyancy system

open access: yes, 2011
There is a continual search for new methods of marine salvage and decommissioning of structures in the open sea in order to improve control and lower operational costs.
Nicholls-Lee, Rachel F.   +4 more
core   +2 more sources

Comparative assessment of crystallographic and cryo‐EM models in the Protein Data Bank

open access: yesFEBS Open Bio, EarlyView.
Raw data obtained by X‐ray crystallography or cryo‐EM result in experimental maps, ultimately fitted by atomic models. Although the physical principles are different, the final results can be viewed, compared, and evaluated in the same way. With cryogenic electron microscopy (cryo‐EM) on track to surpass X‐ray crystallography as the preferred method ...
Alexander Wlodawer   +7 more
wiley   +1 more source

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