Results 61 to 70 of about 2,224,405 (277)

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

FEBS 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, Bogdan I. Florea, Sebastian Geibel   +2 more
wiley   +1 more source

Particle separation efficiency in two 10-mm hydrocyclones in series

, 2011
Two identical 10-mm hydrocyclone connected in series for improving particle separation efficiency is studied using two particulate samples. The operating variable effects, such as feed rate, split ratio and pressure drop through hydrocyclones on the ...
Hwang, Kuo-Jen, Hwang, Kuo-Jen; Lyu, Sin-Yi; Nagase, Youichi   +1 more
core   +1 more source

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

FEBS 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, Vivian Pogenberg, Alexander Baumgart, Bente Siebels, Hartmut Schlüter, Michael Hecht‐Bucher, Aymelt Itzen   +6 more
wiley   +1 more source

Design on Structual Parameter of Oil Film Damper Based on Parameter Fitting

Yuanzineng kexue jishu
Oil film dampers are common supporting components for high-speed rotating machinery, which have the advantages of a simple structure, an easy installation mode, and dependable performance of performing the functions of ensuring rotor system stability and
JIA Xiangyu1, 2, YU Bojun1, 2, WANG Liming1, 2, WU Tingwei1, 2, XU Yang3
doaj   +1 more source

Phase Separation Technique for Suspended Particles in Microchannel Utilizing Bilayered Acoustic Fields

Journal of Fluid Science and Technology, 2009
A non-intrusive and continuous separation technique for suspended particles in a microchannel has been developed by utilizing acoustic radiation force with two ultrasonic transducers.
Mitsuhisa ICHIYANAGI, Hajime NAKANOSONO, Yohei SATO, Koichi HISHIDA   +3 more
doaj   +1 more source

Selective Tribocharging of Particles for Separation

KONA Powder and Particle Journal, 1993
Selective tribocharging is a suitable way for separating mineral constituents from heterogeneous mixtures using an electrostatic field. Though contact charging mechanisms have been studied intensively, understanding is far from clear and complete, due to the variability of material properties and to the influence of ambient conditions, which are often ...
Raimondo Ciccu, Marcello Ghiani, Gianfranco Ferrara   +2 more
openaire   +4 more sources

Review of particle physics

, 2004
This biennial Review summarizes much of Particle Physics. Using data from previous editions, plus 1726 new measurements from 512 papers, we list, evaluate, and average measured properties of gauge bosons, leptons, quarks, mesons, and baryons.
Particle Data Group, Particle Data Grp
core   +1 more source

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

FEBS 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, Jeffrey A. Hawkes, Cecilia Blikstad, Pia Lindberg   +3 more
wiley   +1 more source

Supporting Property Analysis on Oil Film Damper Considering Wedge Clearance

Yuanzineng kexue jishu
Stability analysis is a crucial step in the design process for rotating machinery’s rotordynamics properties, which include static stability and dynamic stability.
JIA Xiangyu1, 2, , WU Tingwei1, 3, BAI Yujie1, 3, ZHANG Kai2, XU Yang2
doaj   +1 more source

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

FEBS 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