Results 121 to 130 of about 292,669 (354)

Cascade Promotion of Gas Separation Performances in CMS Membranes: MOFs With Functional Groups and Loaded Noble Metals

open access: yesAdvanced Science, EarlyView.
Novel mixed‐matrix carbon molecular sieve (MMCMS) membranes are fabricated via employing palladium‐doped carboxyl‐functionalized UiO‐66 (Pd/UiO66‐COOH)/polyimide MMM as precursor. The synergistic effect of decarboxylation‐induced thermally cross‐linking and catalytic graphitization of Pd promoted the formation of more ordered Langmuir domains, thereby ...
Min Deng   +13 more
wiley   +1 more source

Helium resources accumulation regulations and their development prospects in China

open access: yesJournal of Natural Gas Geoscience
Helium is a globally scarce strategic resource that is relevant to national economies and the development of high-tech industries, and China primarily depends on imported helium for its industrial applications.
Jian Li   +11 more
doaj  

Implications of helium accumulation models in helium-rich basins in China for the enrichment and exploration of helium in coal measures

open access: yesMeitian dizhi yu kantan
BackgroundHelium is a strategic resource in serious short supply in China, and intensifying its exploration is crucial to national resource security.
Yunbo LI   +4 more
doaj   +1 more source

On the Dissociation Equilibrium of H2 in Very Cool, Helium-Rich White Dwarf Atmospheres

open access: yes, 2005
We investigate the dissociation equilibrium of $\rm H_2$ in very cool, helium-rich white dwarf atmospheres. We present the solution of the non-ideal chemical equilibrium for the dissociation of molecular hydrogen in a medium of dense helium. We find that
Kowalski, Piotr M.
core   +2 more sources

Engineering Adenine Deaminase TadA for Precise and PAM‐Flexible Point Mutagenesis and Gradient‐Tuning Endogenous Protein Design

open access: yesAdvanced Science, EarlyView.
Base editing enables precise nucleotide substitutions but limited by bystander editing. This study engineers plant base editors by fusing optimized TadA variants with PAM‐flexible SpRY nickase, enabling A‐to‐G, C‐to‐T, and dual‐base conversions in a highly condensed window (≤3 nucleotides). Additionally, TadDBE (TadA Dual‐Base Editor)‐mediated directed
Kangli Sun   +14 more
wiley   +1 more source

Nanoplastics Enhance Transmembrane Transport and Uptake of Carcinogens: Transcriptional Changes and the Effects of Weathering

open access: yesAdvanced Science, EarlyView.
Nanoplastics exposed to defined weathering conditions are systematically investigated as vectors for polycyclic aromatic hydrocarbons (PAHs). This investigation demonstrates significant potential for enhancing PAH uptake and transport in an intestinal membrane model.
Erik B. Schiferle   +5 more
wiley   +1 more source

Analytical Investigation of TAR for Enhancing Performance Using Varied Stack configuration and Varied Working Fluid

open access: yesInternational Journal of Applied Mechanics and Engineering
Thermoacoustic cooling, which uses sound waves to transfer heat, is an environmentally friendly and simple alternative to conventional refrigeration. Gas mixture adjustment to improve cooling performance is understudied compared to pure gas use. Previous
Kamlesh S. Shelke   +3 more
doaj   +1 more source

Semi‐Crystalline Ruthenium Catalyst for Zero‐Drag Hydrogen Production from Hybrid Alkaline Seawater Electrolysis

open access: yesAdvanced Science, EarlyView.
Tune metal‐support interaction to induce formation of crystalline/amorphous Ru interface towards zero‐drag hydrogen generation from hybrid alkaline seawater electrolysis. Abstract Hydrazine‐assisted hybrid alkaline seawater electrolysis offers a dual‐functional platform for environmentally benign remediation of toxic hydrazine and energy‐autonomous ...
Dongquan Yang   +6 more
wiley   +1 more source

Investigation of Wall Effect on Packing Structures and Purge Gas Flow Characteristics in Pebble Beds for Fusion Blanket by Combining Discrete Element Method and Computational Fluid Dynamics Simulation

open access: yesApplied Sciences
In a tritium-breeding blanket of a fusion reaction, helium, used as a tritium-purging gas, will purge the tritium breeder pebble beds to extract the tritium in blanket. The purge gas flow characteristics will affect the tritium extraction efficiency. The
Baoping Gong   +7 more
doaj   +1 more source

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