Results 21 to 30 of about 368,842 (254)

Numerical Study on Thermodynamic Coupling Characteristics of Fluid Sloshing in a Liquid Hydrogen Tank for Heavy-Duty Trucks

open access: yesEnergies, 2023
The large-amplitude sloshing behavior of liquid hydrogen in a tank for heavy-duty trucks may have adverse effects on the safety and stability of driving.
Yuhao Zhu   +5 more
doaj   +1 more source

Development Status and Prospect of Key Technologies for Liquid Hydrogen Production-Storage-Transportation-Refueling

open access: yes发电技术
ObjectivesLiquid storage and transportation is one of the effective ways to realize large-scale and long-distance storage and transportation of hydrogen and ensure the large-scale application of hydrogen energy.
ZHANG Jie, LUO Xuepeng
doaj   +1 more source

A liquid hydrogen target

open access: yesVacuum, 1951
A description is given of a target in which liquid hydrogen was bombarded with x-rays from the Berkeley synchrotron. The liquid hydrogen, in a stainless steel flask, was surrounded by an evacuated jacket containing a heat shield maintained at the temperature of liquid nitrogen. The liquid level was indicated by a counterweighted float system.
openaire   +2 more sources

Liquid Hydrogen Bubble Chambers [PDF]

open access: yesReview of Scientific Instruments, 1955
Chambers 2½ inches and 4 inches in diameter have been constructed of brass with pyrex ports and sealed with lead-wire gaskets. Metal walls and a copper heat leak eliminate the need for a surrounding pressurized bath. The required fast-pulsing techniques and use of a heat regenerator are described in detail.
Parmentier, Douglas, Jr.   +1 more
openaire   +2 more sources

Structural insights into an engineered feruloyl esterase with improved MHET degrading properties

open access: yesFEBS Letters, EarlyView.
A feruloyl esterase was engineered to mimic key features of MHETase, enhancing the degradation of PET oligomers. Structural and computational analysis reveal how a point mutation stabilizes the active site and reshapes the binding cleft, expading substrate scope.
Panagiota Karampa   +5 more
wiley   +1 more source

Hyperosmotic stress induces PARP1‐mediated HPF1‐dependent mono(ADP‐ribosyl)ation

open access: yesFEBS Letters, EarlyView.
Sorbitol‐induced hyperosmotic stress rapidly induces reversible mono(ADP‐ribosyl)ation (MARylation) on PARP1 without the signs of genotoxic signaling. We show that PARP1 autoMARylation is HPF1 dependent and forms hydroxylamine‐resistant O‐glycosidic linkages.
Anna Georgina Kopasz   +11 more
wiley   +1 more source

A Thermodynamic Model for Cryogenic Liquid Hydrogen Fuel Tanks

open access: yesApplied Sciences
Hydrogen is used as a fuel in various fields, such as aviation, space, and automobiles, due to its high specific energy. Hydrogen can be stored as a compressed gas at high pressure and as a liquid at cryogenic temperatures.
Dongkuk Choi, Sooyong Lee, Sangwoo Kim
doaj   +1 more source

Hydrogen Road Transport Analysis in the Energy System: A Case Study for Germany through 2050

open access: yesEnergies, 2021
Carbon-free transportation is envisaged by means of fuel cell electric vehicles (FCEV) propelled by hydrogen that originates from renewably electricity. However, there is a spatial and temporal gap in the production and demand of hydrogen.
Markus Reuß   +5 more
doaj   +1 more source

An unexpected alternative viologen electron mediator site in tungsten‐containing formate dehydrogenase

open access: yesFEBS Letters, EarlyView.
An unexpected alternative interaction site for ethyl viologen was identified in formate dehydrogenase 1 from Methylorubrum extorquens. Combined mutagenesis, kinetic analysis, and docking revealed that aromatic residues near an iron–sulfur cluster enable flavin mononucleotide‐independent electron transfer, offering a framework for engineering improved ...
Eleni G. Poloniataki, Yong Hwan Kim
wiley   +1 more source

H2-powered aviation – Design and economics of green LH2 supply for airports

open access: yesEnergy Conversion and Management: X, 2023
The economic competitiveness of hydrogen-powered aviation highly depends on the supply costs of green liquid hydrogen to enable true-zero CO2 flying. This study uses non-linear energy system optimization to analyze three main liquid hydrogen (LH2) supply
J. Hoelzen   +5 more
doaj   +1 more source

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