Results 31 to 40 of about 219,973 (335)
World Electric Vehicle Journal, 2023 The anode recirculation mode is increasingly being adopted in today’s fuel cell systems. The recycling of hydrogen gas can effectively improve fuel utilization and the wider economy.
Weisong Li +3 more
doaj +1 more source
Pressure-control purge panel for automatic butt welding [PDF]
, 1969 Modification of a purge panel for use in an automatic butt weld reduces the drop in pressure between the regulators and the weld head and tube purge fitting.
Lang, E. J., Van Wagner, B. H.
core +1 more source
EFFECT OF THE APPLICATION OF MICROWAVE ENERGY ON THE REGENERATION OF THE ADSORBENT [PDF]
, 2018 Today, energy conservation is a priority. This is due to the shortage of energy resources, the growth of their cost and global environmental problems. The production of compressed air is a wery costly and power-consuming process.
Aleksenko , Borys +3 more
core +2 more sources
Handbook of Establishing and Maintaining Oxygen‐Free Atmospheres
Advanced Engineering Materials, EarlyView.This study presents a practical framework for creating oxygen‐free atmospheres at ambient pressure using silane‐doped inert gases. The results show that ultra‐low oxygen levels and strongly reduced water content can be achieved through controlled silane dosing, drying systems, and sensor monitoring.
Sascha Jan Zimmermann +3 more
wiley +1 more source
Przebieg i skutki czystki politycznej w okupowanej Japonii
Prace Historyczne, 2022 The political purge in occupied Japan: implementation and effects The Allied forces in occupied Japan had two main tasks: to punish and eliminate from public life those found responsible for war ...
Katarzyna Starecka
doaj +1 more source
Techniques for insulating cryogenic fuel containers Patent [PDF]
, 1967 Carbon dioxide purge systems to prevent condensation in spaces between cryogenic fuel tanks and hypersonic vehicle ...
Jackson, L. R.
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Effect of Oxygen Content on Surface and Subsurface Integrity During Turning of Ti–6Al–4V
Advanced Engineering Materials, EarlyView.This study examines how oxygen content in the ambient atmosphere affects the surface and subsurface properties of Ti–6Al–4V during turning. Results show that oxygen does not influence surface roughness. However, machining in an extremely high vacuum‐adequate atmosphere increases surface hardness by up to 7.8% and induces compressive residual stresses ...
Benjamin Bergmann +3 more
wiley +1 more source
IEEE Access, 2016 Proton exchange membrane fuel cell (PEMFC) can be a significant eco-friendly alternative power source for vehicles. However, under subfreezing conditions, cell degradation and irreversible performance decay can occur because of ice formation and ...
Ali Akrem Amamou +3 more
doaj +1 more source
The Purge of the Red Army and the Soviet Mass Operations 1937-1938 [PDF]
, 2015 This article explores the possible connections between Stalin's purge of the Red Army, sanctioned in June 1937, and the Soviet mass operations, launched just weeks later.
Whitewood, Peter
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Oxide‐Free Titanium Coatings by Wire Arc Spraying in a Silane‐Doped Inert Atmosphere
Advanced Engineering Materials, EarlyView.A silane‐doped argon atmosphere enables the production of oxide‐free titanium coatings via twin‐wire arc spraying at ambient pressure. This innovative approach eliminates residual oxygen, creating process conditions that prevent oxidation and nitride formation.
Manuel Rodriguez Diaz +4 more
wiley +1 more source