Results 41 to 50 of about 293,024 (264)

Study on Optimization of Gas Drainage Methods in High-burst Mines [PDF]

open access: yesE3S Web of Conferences, 2019
After the mechanization upgrade of Yongjing Coal Mine, the original extraction method cannot solve the problem of gas. According to the actual production conditions of the mine, the source and composition ratio of gas emission are analyzed.By combining ...
Yang Fengfeng   +6 more
doaj   +1 more source

Elusive Partnerships: Gas extraction and CSR in Bangladesh [PDF]

open access: yesResources Policy, 2012
This paper examines Chevron's programme of CSR at a gas field in Bangladesh. Whilst apparently building partnerships in the villages that surround the Bibiyana Gas Field, we suggest that the corporation remains detached from the local population via their community development programmes and employment policies. This contradiction is submerged by ideas
Katy Gardner   +3 more
openaire   +2 more sources

Single‐molecule DNA flow‐stretch assays for high‐throughput DNA–protein interaction studies

open access: yesFEBS Open Bio, EarlyView.
We describe an optimised single‐molecule DNA flow‐stretch assay that visualises DNA–protein interactions in real time. Linear DNA fragments are tethered to a surface and stretched by buffer flow for fluorescence imaging. Using λ and φX174 DNA, this protocol enhances reproducibility and accessibility, providing a versatile approach for studying diverse ...
Ayush Kumar Ganguli   +8 more
wiley   +1 more source

Molecular dynamics simulations of positively selected codons in FcγRI reveal novel biochemical binding properties

open access: yesFEBS Open Bio, EarlyView.
Evolutionary analysis across 32 placental mammals identified positive selection at residues H148 and W149 in the immune receptor FcγR1. Ancestral reconstruction combined with molecular dynamics simulations reveals how these mutations may influence receptor structure and dynamics, providing insight into the evolution of antibody recognition and immune ...
David A. Young   +7 more
wiley   +1 more source

Acute caffeine treatment protects the developing retina from ischemia‐induced cell death

open access: yesFEBS Open Bio, EarlyView.
Caffeine reduces cell death in the developing retina under ischemia (OGD). This effect does not involve BDNF upregulation or antioxidant pathways (NRF2/VEGF). Neuroprotection occurs mainly through adenosine A2A receptor antagonism, decreasing glutamate release and excitotoxicity, highlighting caffeine's potential as an acute neuroprotective agent in ...
Amanda Alves Nascimento   +6 more
wiley   +1 more source

Gas extraction of a western sub-bituminous coal. Final report. [Supercritical gas extraction]

open access: yes, 1978
The British National Coal Board has developed a technique for the extraction of UK bituminous coals with supercritical fluids, whereby an extract is obtained which can be hydrocracked to a distillate oil rich in benzene derivatives, together with a reactive char suitable for gasification or combustion. No hydrogen is needed for the extraction, the need
D. F. Williams, T. G. Martin
openaire   +2 more sources

Assessment of pipeline failure pressure under the interaction of multiple corrosion defects

open access: yesYou-qi chuyun
ObjectiveLong-term service of oil and gas pipelines often leads to interacting corrosion defects, which significantly degrade structural integrity and elevate the risk of leakage or rupture.
Fan PU   +7 more
doaj   +1 more source

A yeast model of 5‐oxoproline accumulation reveals a general toleration to 5‐oxoproline

open access: yesFEBS Open Bio, EarlyView.
Using a yeast model, we show that even high accumulation of 5‐oxoproline causes only mild cellular stress and does not trigger oxidative stress. Instead, cells adapt by activating efflux pumps and diverse protective pathways, suggesting that previously proposed harmful effects of 5‐oxoproline may arise from indirect metabolic imbalances rather than the
Pratiksha Dubey   +4 more
wiley   +1 more source

Hydrogen–Rock Interactions in Carbonate and Siliceous Reservoirs: A Petrophysical Perspective

open access: yesApplied Sciences
Underground hydrogen storage (UHS) in carbonate and siliceous formations presents a promising solution for managing intermittent renewable energy. However, experimental data on hydrogen–rock interactions under representative subsurface conditions remain ...
Rami Doukeh   +8 more
doaj   +1 more source

Sudden anaerobization in Amphibacillus xylanus increases intracellular labile ferrous iron and inhibits cell growth

open access: yesFEBS Open Bio, EarlyView.
Abruptly changing from aerobic to anaerobic conditions (sudden anaerobization) induced growth inhibition and a significant increase in intracellular labile ferrous iron in the aerotolerant anaerobe Amphibacillus xylanus. We found that free flavins mediate efficient electron transfer from NADH to ferric iron under anaerobic conditions, suggesting that ...
Shinya Kimata   +13 more
wiley   +1 more source

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