Results 51 to 60 of about 8,865,343 (255)

Performance comparison test of new sprayed engineered cementitious composites and C25 sprayed concrete

open access: yesCase Studies in Construction Materials, 2022
The Wulingtou tunnel in Xuancheng City is faced with complex geological conditions in the construction process, and the construction is difficult.
Shi Hu   +3 more
doaj   +1 more source

Structures of mycobacterial 3‐methylcrotonyl‐CoA carboxylase reveal carrier‐domain translocation between catalytic sites

open access: yesFEBS Letters, EarlyView.
Mycobacterial 3‐methylcrotonyl‐CoA carboxylase uses a mobile biotin‐carrying domain to shuttle a carboxyl group between two catalytic sites, enabling carboxylation of 3‐methylcrotonyl‐CoA during leucine breakdown. Cryo‐electron microscopy captures the carrier at both sites and reveals an inward loop movement that may prevent futile rebinding to the ...
Ajit Yadav   +2 more
wiley   +1 more source

Temperature and strain scaling laws for the critical current density in Nb(_3)Sn and Nb(_3)Al conductors in high magnetic fields [PDF]

open access: yes, 2001
Detailed, accurate measurements of critical current density and resistivity to determine the upper critical field have been made on a technological NbsAl conductor in magnetic fields up to 15 T, temperatures from 4.2 K up to the critical temperature and ...
Keys, Simon Alastair
core  

L‐aspartate oxidase provides new insights into fumarate reduction in anaerobic darkness in Synechocystis sp. PCC6803

open access: yesFEBS Letters, EarlyView.
Synechocystis strains deficient in succinate dehydrogenase (SDH) secrete more succinate than the WT under dark anaerobic conditions, supporting that SDH then primarily acts as SDH, not as a fumarate reductase. L‐aspartate oxidase (Laspo) from Synechocystis is functional under anaerobic conditions, reducing fumarate to succinate.
Kateryna Kukil   +3 more
wiley   +1 more source

The strain energy density approach applied to bonded joints [PDF]

open access: yes, 2020
Adhesively bonded joints can be treated as bi-materials characterized by a stress singularity promoted by both geometrical and constitutive discontinuities, very close to the point where the interface between two elastic solids intersects a traction-free
Ferro P.   +3 more
core   +1 more source

Strain engineering of doped hydrogen passivated silicon quantum dots

open access: yesScientific Reports
Silicon quantum dots are nanomaterials that are attractive candidates for photovoltaic applications. Doping of these materials creates p-n junctions and is important for solar cells.
Swarnava Ghosh, Markus Eisenbach
doaj   +1 more source

Strain acting on adsorption of C60 onto graphene from DFTB algorithm

open access: yesCarbon Trends, 2021
Density functional tight-binding calculations have been employed to study the interaction between C60 with pristine and strained single layer graphene, respectively.
Li Jing, Zhao Dandan, Zhang Lin
doaj   +1 more source

Artificial molecular machines and motors—Design and control of nanoscale motion

open access: yesFEBS Letters, EarlyView.
Molecules are constantly moving because of thermal fluctuations, but random motion alone cannot be exploited to perform directional tasks. Artificial molecular machines use chemical, electrical, or light energy to bias this motion. Molecular shuttles, rotary motors, and supramolecular pumps illustrate how nanoscale movement can be controlled and ...
Leonardo Andreoni, Alberto Credi
wiley   +1 more source

The strain-dependence of the critical current density in the high-field superconductor Nb(_3)Sn [PDF]

open access: yes, 2004
Measurements of the critical current density (J_c) of Nb(_3)Sn superconducting wires were performed as a function of magnetic field (B ≤ 23 T), temperature (4.2 K ≤ T ≤ 12 K), and axial strain (-1.6% ≤ ɛ ≤ 0.7%).
Taylor, David Matthew Joseph
core  

Strain energy density relative to position.

open access: yes, 2013
Strain energy density relative to position.
Zheng Wang (25883)
core   +1 more source

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