Results 61 to 70 of about 702,145 (300)

Formation of Primordial Protostars [PDF]

, 1998
The evolution of collapsing metal free protostellar clouds is investigated for various masses and initial conditions. We perform hydrodynamical calculations for spherically symmetric clouds taking account of radiative transfer of the molecular hydrogen
Carlberg R. G., Fukugita M., Hummer D. H., Kazuyuki Omukai, Larson R. B., Low C., Penston M. V., Rees M. J., Ryoichi Nishi, Yoneyama T.   +9 more
core   +2 more sources

Tau acetylation at K331 has limited impact on tau pathology in vivo

FEBS Letters, EarlyView.
We mapped tau post‐translational modifications in humanized MAPT knock‐in mice and in amyloid‐bearing double knock‐in mice. Acetylation within the repeat domain, particularly around K331, showed modest increases under amyloid pathology. To test functional relevance, we generated MAPTK331Q knock‐in mice.
Shoko Hashimoto, Yukio Matsuba, Mika Takahashi, Takaomi C. Saido   +3 more
wiley   +1 more source

Effect of Flow Rate on Corrosion Behavior and Hydrogen Evolution Potential of X65 Steel in 3.5% NaCl Solution

International Journal of Electrochemical Science, 2019
Effect of flow rate on the cathodic reaction as well as hydrogen evolution potential of X65 steel in 3.5% NaCl solution were investigated using Electrochemical impedance spectroscopy (EIS) and potentiodynamic polarization.
Weiwei Kang, Zhiming Gao, Yingjie Liu, Liqin Wang   +3 more
doaj   +1 more source

Intermetallic Cu5Zr Clusters Anchored on Hierarchical Nanoporous Copper as Efficient Catalysts for Hydrogen Evolution Reaction

Research, 2020
Designing highly active and robust platinum-free electrocatalysts for hydrogen evolution reaction is vital for large-scale and efficient production of hydrogen through electrochemical water splitting.
Hang Shi, Yi-Tong Zhou, Rui-Qi Yao, Wu-Bin Wan, Qing-Hua Zhang, Lin Gu, Zi Wen, Xing-You Lang, Qing Jiang   +8 more
doaj   +1 more source

Coherent States for the Hydrogen Atom [PDF]

, 1995
The long-standing problem of finding coherent states for the (bound state portion of the) hydrogen atom is positively resolved. The states in question: (i) are normalized and are parameterized continuously, (ii) admit a resolution of unity with a ...
Klauder, John R.
core   +2 more sources

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

FEBS 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, Konstantinos Makryniotis, Theofani‐Iosifina Sousani, Evangelos Topakas, Vangelis Daskalakis, Maria Dimarogona   +5 more
wiley   +1 more source

Oxophilic Ce single atoms-triggered active sites reverse for superior alkaline hydrogen evolution

Nature Communications
The state-of-the-art alkaline hydrogen evolution catalyst of united ruthenium single atoms and small ruthenium nanoparticles has sparked considerable research interest.
Fengyi Shen, Zhihao Zhang, Zhe Wang, Hao Ren, Xinhu Liang, Zengjian Cai, Shitu Yang, Guodong Sun, Yanan Cao, Xiaoxin Yang, Mingzhen Hu, Zhengping Hao, Kebin Zhou   +12 more
doaj   +1 more source

Hydrogen evolution, efficiency and exacerbated galvanic corrosion damage of magnesium alloy anode

Cailiao gongcheng, 2021
To address the galvanic corrosion issue that is critically limiting the practical application of Mg alloys, the negative difference effect (NDE), anodic dissolution efficiency, and anodic hydrogen evolution were investigated by means of the hydrogen ...
HUANG Ju-feng, SONG Guang-ling
doaj   +1 more source

A methionine‐lined active site governs carbocation stabilization and product specificity in a bacterial terpene synthase

FEBS Letters, EarlyView.
This study reveals a unique active site enriched in methionine residues and demonstrates that these residues play a critical role by stabilizing carbocation intermediates through novel sulfur–cation interactions. Structure‐guided mutagenesis further revealed variants with significantly altered product profiles, enhancing pseudopterosin formation. These
Marion Ringel, Carl P. O. Helmer, Shani Zev, Ronja Driller, Emily Buhr, Markus Reinbold, Renana Schwartz, Gabriel Foley, Mikael Boden, Daniel Garbe, Gerhard Schenk, Dan Thomas Major, Bernhard Loll, Thomas Brück   +13 more
wiley   +1 more source

Near-surface self-resistance hydrogen effect of eutectic high-entropy alloy AlCoCrFeNi2.1

Journal of Materials Research and Technology
A series of engineering application studies related to hydrogen damage has been carried out for the eutectic high-entropy alloy (HEA) AlCoCrFeNi2.1 with excellent comprehensive properties.
Daochen Feng, Minghui Hu, Wenjian Zheng, Yu Wang, Yinghe Ma, Sendong Ren, Dapeng Tan, Jianguo Yang   +7 more
doaj   +1 more source