Results 31 to 40 of about 5,838 (169)

Natural H₂ Transfer in Soil: Insights from Soil Gas Measurements at Varying Depths

Geosciences
The exploration of natural H2 is beginning in several countries. One of the most widely used methods for detecting promising areas is to measure the H2 percentage of the air contained in soils. All data show temporal and spatial variabilities.
Cesar Patino, Dora Piedrahita, Elkin Colorado, Katherine Aristizabal, Isabelle Moretti   +4 more
doaj   +1 more source

Computational fluid dynamic analysis of hydrogen‐injected natural gas for mixing and transportation behaviors in pipeline structures

Energy Science & Engineering, 2023
The transportation of hydrogen is a weak link in the large‐scale development of the hydrogen energy industry. Injecting hydrogen into the natural gas pipeline network for transportation is an efficient way to achieve the large‐scale, long‐distance, and ...
Shuangjie Yan, Guanwei Jia, Weiqing Xu, Rui Li, YangHui Lu, Maolin Cai   +5 more
doaj   +1 more source

An Investigation into the Volumetric Flow Rate Requirement of Hydrogen Transportation in Existing Natural Gas Pipelines and Its Safety Implications

Gases, 2021
As an alternative to the construction of new infrastructure, repurposing existing natural gas pipelines for hydrogen transportation has been identified as a low-cost strategy for substituting natural gas with hydrogen in the wake of the energy transition.
Abubakar Jibrin Abbas, Hossein Hassani, Martin Burby, Idoko Job John   +3 more
doaj   +1 more source

Three phosphatase families form a community: The phosphohydrolases that act upon inositol pyrophosphates

FEBS Letters, EarlyView.
Inositol pyrophosphates are energy‐rich signaling molecules that perform critical functions in cells. Three different families of phosphatases hydrolyze the β phosphate of the inositol pyrophosphate molecules: two have narrow specificities and one is promiscuous.
Ronda J. Rolfes
wiley   +1 more source

Reconstructing enzyme evolution by protein engineering

FEBS Letters, EarlyView.
Natural enzyme evolution can be retraced by protein engineering methods such as directed evolution, rational design, and ancestral sequence reconstruction. These approaches reveal how enzymes emerged from ligand‐binding scaffolds, developed varying substrate preferences, formed oligomeric complexes, adapted to environmental changes, and evolved novel ...
Lukas Drexler, Markus R. Busch, Reinhard Sterner   +2 more
wiley   +1 more source

Radiolysis and Fe‐Biotite Alteration: Questioning the Origin of H2‐Bearing Fluid Inclusions in the Yorke Peninsula Granites, South Australia

Geochemistry, Geophysics, Geosystems
Multiple drillings in the Yorke Peninsula, South Australia, recently confirmed the presence of natural hydrogen (H2) in shallow sedimentary units. While radiolysis and Fe‐oxidation in the basement are potential generation mechanisms, their respective ...
Ugo Geymond, Dan Lévy, Julien Bourdet, Isabelle Martinez, Olivier Sissmann, Sidonie Revillon, Rayanne Gormit, Sylvain Bernard, Pierre‐Henri Blard, David Bekaert, Jimmy Daynac, Stephan Borensztajn, Se Gong, Clément Herviou, Emanuelle Frery, Isabelle Moretti   +15 more
doaj   +1 more source

Research progress on pipeline transportation technology of hydrogen-mixed natural gas

You-qi chuyun, 2021
Hydrogen energy is recognized as a clean energy, and mixing hydrogen into natural gas pipeline is an effective way to transport hydrogen on a large scale. However, as the physical properties of hydrogen vary greatly from those of natural gas, the quality
Ping XIE, Yi WU, Changjun LI, Wenlong JIA, Hao ZHANG, Xia WU   +5 more
doaj   +1 more source

Stimulator of interferon genes agonist augmented antitumor immunity of osimertinib in Egfr‐mutated lung cancer

Molecular Oncology, EarlyView.
Combining osimertinib with the STING agonist ADU‐S100 activates innate and adaptive immunity to overcome the non‐inflamed microenvironment of Egfr‐mutant lung cancer. This combination increases NK and CD8+ T‐cell infiltration, associated with activation of the STING‐IRF3 pathway and local immunogenic cell death.
Jun Nishimura, Tadahiro Kuribayashi, Johannes Brägelmann, Sachi Okawa, Masataka Taoka, Shunta Mori, Tomoka Nishimura, Takaaki Tanaka, Go Makimoto, Kiichiro Ninomiya, Kammei Rai, Eiki Ichihara, Ryohei Katayama, Katsuyuki Hotta, Masahiro Tabata, Yosuke Togashi, Yoshinobu Maeda, Martin L. Sos, Katsuyuki Kiura, Kadoaki Ohashi   +19 more
wiley   +1 more source

A comparison of current and emerging net-zero hydrogen production technologies: a perspective drawn from the international HyPT forum

Frontiers in Energy Research
We present a synthesis of the wide range of alternative types of hydrogen production technology that are under development that are compatible with net-zero CO2 emissions, with a view to encouraging targeted research and innovation of these various ...
Gregory F. Metha, Simon P. Holford, Cameron Shearer, Woei Saw, Zhiwei Sun, Graham J. Nathan   +5 more
doaj   +1 more source

Economic Analysis on Hydrogen Pipeline Infrastructure Establishment Scenarios: Case Study of South Korea

Energies, 2022
South Korea has a plan to realize a hydrogen economy, and it is essential to establish a main hydrogen pipeline for hydrogen transport. This study develops a cost estimation model applicable to the construction of hydrogen pipelines and conducts an ...
Heeyeon Lee, Sanghun Lee
doaj   +1 more source