Results 51 to 60 of about 8,610,294 (201)

Research Method of Wellbore Stability of Coal Formation in the Daniudi Gas Field

open access: yesShiyou jixie, 2015
Most studies on the coalbed wellbore stability are based on continuum mechanics,few research has involved fluid-structure coupling.The coal mechanical properties have been studied through the uniaxial and 3-axis compressive strength test of coal samples ...
Cheng Fushan   +5 more
doaj  

Dynamic Characteristics of Magnetorheological Mounted Metal Rubber Structures Under Multi-physics Coupling Conditions

open access: yesMedžiagotyra
To accurately predict the dynamic characteristics of MR mounting, the nonlinear electromagnetic coupling law between MR liquid and soft magnetic material and the solid-liquid interaction, the electromagnetic coupling and fluid-structure coupling ...
Bo PENG, Jintao SU, Jinquan NIE
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

Fluid Structure Interaction Using Modal Superposition and Lagrangian CFD

open access: yesJournal of Marine Science and Engineering
This study investigates the impact of fluid loads on the elastic deformation and dynamic response of linear structures. A weakly coupled modal solver is presented, which involves the solution of a dynamic equation of motion with external loads.
Manigandan Paneer   +5 more
doaj   +1 more source

Fluid-structure Coupling Simulation Analysis of Angular Contact Ball Bearing

open access: yesJixie chuandong, 2021
The lubrication condition of angular contact ball bearings in operation is crucial,and the lubricant directly affects the contact state of rolling bearings. In order to analyze the lubrication condition of angular contact ball bearings and the mechanical
Lanwen Wang, Xuanyu Sheng, Jianbin Luo
doaj  

Coupling analysis of contra-rotating fan interstage pressure pulsation and blade vibration based on wavelet reconstruction.

open access: yesPLoS ONE, 2021
In recent years, the flow characteristics research of the interstage region in counter-rotating axial fans in terms of fluid dynamics has attracted much attention.
Xinzhe Zhang   +4 more
doaj   +1 more source

The Shewanella oneidensis Fic enzyme SoFic targets the switch‐I region of EF‐Tu for AMPylation

open access: yesFEBS Letters, EarlyView.
Fic enzymes mediate diverse post‐translational modifications across all domains of life, including AMPylation. Prokaryotic EF‐Tu can be AMPylated and deAMPylated by the conserved Fic enzyme SoFic. Structural and biochemical approaches were used to characterize the effect of AMPylation on EF‐Tu, SoFic's enzymatic activities, and the enzyme‐target ...
Svenja Runge   +6 more
wiley   +1 more source

Vibration analysis of hydropower house based on fluid-structure coupling numerical method

open access: yesWater Science and Engineering, 2010
By using the shear stress transport (SST) model to predict the effect of random flow motion in a fluid zone, and using the Newmark method to solve the oscillation equations in a solid zone, a coupling model of the powerhouse and its tube water was ...
Shu-he Wei, Liao-jun Zhang
doaj   +1 more source

Chiral separation of chloroalkanes with the chromatographic column onboard Martian rovers

open access: yesFEBS Letters, EarlyView.
Computer image of the Rosalind Franklin Rover of ESA's ExoMars mission. ExoMars is scheduled to land on planet Mars in Oxia Planum in 2029. This area represents an interesting spot to look for biosignatures. Investigations of ExoMars include measurement on molecular chirality. We show that chiral chloroalkanes, that have been identified on Mars, can be
Asma Merzougui   +4 more
wiley   +1 more source

Analysis of downwind sail structures using non-linear shell finite elements: wrinkle development and fluid interaction effects

open access: yes, 2012
Downwind yacht sails are subjected to fluid structure interaction effects which can slightly change the initial design shape, with a direct impact on the overall performances.
Trimarchi, Daniele
core   +1 more source

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