Results 41 to 50 of about 195,760 (256)

Modeling bulk diffusion of hydrogen in X70 pipeline steel

Scientific Reports
Hydrogen bulk diffusion and saturation of X70 pipeline steel was investigated by employing high-pressure gaseous hydrogen charging, thermal desorption analysis/spectroscopy (TDA/TDS) and numerical modeling/simulation of bulk diffusion. The trapping model
Andreas Drexler, Sergio Pastore, Josef Domitner   +2 more
doaj   +1 more source

Malformin A1–mediated cytotoxicity in ovarian cancer cells occurs through pyroptosis and autophagy

FEBS Open Bio, EarlyView.
This study investigated the effects of the natural compound Malformin A1 (MA1) on the cytoskeleton that regulates cell proliferation and migration. Disruption of the cytoskeleton can impair these processes and promote cancer cell death. MA1 disrupted cytoskeletal organization, induced DNA damage, inflammation, activated autophagy, and pyroptosis ...
Nada Abdullah Hassan, Ikram A. Burney, Shika Hanif Malgundkar, Siva Ramamoorthy, Ressin Varghese, Mohamed A. Al‐Kindi, Hamad Al Riyami, Shadia Al Bahlani, Sergey Dobretsov, Syed Imran Hassan, Benjamin K. Tsang, Yahya Tamimi   +11 more
wiley   +1 more source

Microstructure Anisotropy Effect on Stress and Hydrogen Distribution in Micro Area for Martensitic Stainless Steel

Cailiao gongcheng, 2016
Elastic stiffness distribution of martensite microstructure was analyzed by using Electron Back Scatter Diffraction(EBSD) experiment, based on which the coupled finite element model of stress-hydrogen interaction was established to study the influence of
ZHONG Zhen-qian, TIAN Zhi-ling, YANG Chun   +2 more
doaj   +1 more source

Structural studies and functional engineering of NanX: an anhydro‐sialic acid transporter from Escherichia coli

FEBS Open Bio, EarlyView.
Biophysical characterisation shows that NanX, a membrane transport protein from the major facilitator superfamily (MFS), forms both monomers and dimers after purification. AlphaFold modelling and substrate docking provide information on residues likely involved in substrate recognition for NanX and another MFS member, NanT.
Michael C. Newton‐Vesty, Kelsi R. Hall, Zachary D. Tillett, Liam S. Turk, James S. Davies, Michael J. Currie, Hamish G. Brown, Sepideh Valimehr, Peter D. Mace, Andrew E. Whitten, Santosh Panjikar, Eric Hanssen, Rachel A. North, Renwick C.J. Dobson   +13 more
wiley   +1 more source

Compensation of the Meyer‐Neldel Compensation Law for H diffusion in minerals

Geochemistry, Geophysics, Geosystems, 2014
The Meyer‐Neldel Rule (MNR), or compensation law, linearly relates the preexponent term to the logarithm of the excitation enthalpy for any process that is thermally driven in an Arrhenian manner, and MNR fits can be used to calibrate and validate ...
Alan G. Jones
doaj   +1 more source

Adenosine triphosphate as a modulator of protein interactions and stability

FEBS Open Bio, EarlyView.
ATP is best known as the cell's energy currency, but it also shapes how proteins fold, interact, aggregate and form biomolecular condensates. This review explains the emerging physical principles behind these effects, including weak binding to charged protein regions, magnesium‐dependent behaviour and concentration‐dependent control of protein ...
Shuyuan Tan, Robin Curtis
wiley   +1 more source

Epilepsy‐Associated Variants of a Single SCN1A Codon Exhibit Divergent Functional Properties

Annals of Clinical and Translational Neurology, EarlyView.
ABSTRACT Objective Pathogenic variants in SCN1A, which encodes the voltage‐gated sodium channel NaV1.1, are associated with multiple epilepsy syndromes exhibiting a range of clinical severity. SCN1A variants are reported in different syndromes, including Dravet syndrome, which is associated with loss‐of‐function, whereas neonatal/infantile‐onset ...
Lanie N. Liebovitz, Christopher H. Thompson, Linda C. Laux, Alfred L. George Jr.   +3 more
wiley   +1 more source

Hydrogen diffusivity in FeAl

Bulletin of Materials Science, 1997
The room temperature diffusivity of hydrogen in a fully B2 ordered iron aluminide of composition Fe-35·8 Al was estimated from the experimental hydrogen depth profile to be 2·38×10−15m2/s. The mathematical procedure utilized for data analysis has been described. The estimated diffusivity is a lower bound value due to surface trapping effects.
P Banerjee, R Balasubramaniam
openaire   +2 more sources

Grain boundary carbides as hydrogen diffusion barrier in a Fe-Ni alloy: A thermal desorption and modelling study

Materials & Design, 2018
A significant decrease in hydrogen absorption in the presence of grain boundary carbides compared to the carbide-free microstructure in the Ni-based HR6W alloy was measured by thermal desorption analysis (TDA).
Andrej Turk, David Bombač, Jakub Jelita Rydel, Maciej Ziętara, Pedro E.J. Rivera-Díaz-del-Castillo, Enrique I. Galindo-Nava   +5 more
doaj   +1 more source

Effect of Carbon Content and Microstructure on the Diffusion of Hydrogen in Low Carbon Steels

International Journal of Electrochemical Science, 2020
In this work, the electrochemical permeation technique proposed in the ASTM-G148-97 Ed 2011 standard was used to determine the maximum oxidation current density, imax; breakthrough time; tb, effective hydrogen diffusion coefficient, Deff; and surface ...
J.G. Arenas-Salcedo, J.G. Godínez-Salcedo, J.L. González-Velázquez, J.M. Medina-Huerta   +3 more
doaj   +1 more source