Results 51 to 60 of about 6,876,154 (338)
High pressure helium purifier Patent [PDF]
Apparatus and method capable of receiving large quantity of high pressure helium, removing impurities, and discharging at received ...
Hauser, J. A.
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Band gap closure, incommensurability and molecular dissociation of dense chlorine
Molecular systems are predicted to transform into atomic solids and be metallic at high pressure; this was observed for the diatomic elements iodine and bromine. Here the authors access the higher pressures needed to observe the dissociation in chlorine,
Philip Dalladay-Simpson+8 more
doaj +1 more source
On Stress-Induced Polarization Effect in Ammonothermally Grown GaN Crystals
The results of basic ammonothermal crystallization of gallium nitride are described. The material is mainly analyzed in terms of the formation of stress (called stress-induced polarization effect) and defects (threading dislocations) appearing due to a ...
Karolina Grabianska+6 more
doaj +1 more source
High-pressure electrolysis (also called high-pressure electrolysis HPE) is the water electrolysis performed at pressures higher than ambient in which electrical energy is the driving force of the water decomposition to produce oxygen (O2) and hydrogen (H2). The core of an electrolysis unit is an electrochemical cell, which is filled with pure water and
openaire +3 more sources
A stepwise emergence of evolution in the RNA world
How did biological evolution emerge from chemical reactions? This perspective proposes a gradual scenario of self‐organization among RNA molecules, where catalytic feedback on random mixtures plays the central role. Short oligomers cross‐ligate, and self‐assembly enables heritable variations. An event of template‐externalization marks the transition to
Philippe Nghe
wiley +1 more source
Miniature high pressure regulator [PDF]
Metal bellows, capable of suppling required spring rate and operational stability, replaced diaphragms, sliding seals, and springs in design of small gas ...
Wang, W. S., Wright, H. W., Jr.
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The hydrostatic pressure effect on the newly discovered superconductor MgB2 has been determined. The transition temperature Tc was found to decrease linearly at a large rate of -1.6 K/GPa, in good quantitative agreement with the ensuing calculated value ...
B. Lorenz+14 more
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Autoclave design for high pressure-high temperature corrosion studies [PDF]
Acknowledgements The authors gratefully acknowledge the contribution of Steve Cawley of John Cardwell Limited and Jim Herrmann of Cortest Inc. for the manufacture of the autoclave and for the permission to use the vessel design schematic drawings ...
Akisanya, A. R.+2 more
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Author Correction: Band gap closure, incommensurability and molecular dissociation of dense chlorine
The original version of this Article omitted references to previous experimental reports on solid hydrogen that are relevant for a full understanding of the context of the previous work. The added references are: 47. Akahama, Y. et al.
Philip Dalladay-Simpson+8 more
doaj +1 more source
B cells sense external mechanical forces and convert them into biochemical signals through mechanotransduction. Understanding how malignant B cells respond to physical stimuli represents a groundbreaking area of research. This review examines the key mechano‐related molecules and pathways in B lymphocytes, highlights the most relevant techniques to ...
Marta Sampietro+2 more
wiley +1 more source