Results 81 to 90 of about 5,151,847 (295)
A simulated investigation on the machining instability and dynamic surface generation [PDF]
, 2005 In this paper, the authors propose the generic concept of machining instability based on the analysis of all kinds of machining instable behaviors and their features.
Luo, X K, Cheng, K, Luo, X
core +1 more source
Nihon Kikai Gakkai ronbunshuFrom the machining center (MC) user’s point of view, this paper, as the second report of a systematic study, proposes a practical approach to estimate the trajectory error of a circular arc interpolation cutter path produced by the NC linear acceleration/
Hua QIU, Tetsurou YAMAGUCHI
doaj +1 more source
Elucidation of the polishing mechanism by the magnetic polishing brush
Nihon Kikai Gakkai ronbunshu, 2016 Nowadays, a free-form surface, such as molding die surface, is required to be finished by reducing the environmental burden. Therefore, a novel polishing technology is needed with a less abrasive slurry,for the reduction of which a magnetic abrasive ...
Lei MA +4 more
doaj +1 more source
Structural and biochemical analysis of a B12 superbinder
FEBS Letters, EarlyView.BtuG proteins are vitamin B12 scavengers in Bacteroides thetaiotaomicron, a dominant human gut bacterium. We present crystal structures of three BtuG homologs bound to cobalamin and its precursor cobinamide, revealing picomolar binding affinities, among the highest known for any natural protein.
Jose M. Martinez Felices +3 more
wiley +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 +6 more
wiley +1 more source
Coring on Ceramics by Machining Center.
Journal of the Japan Society for Precision Engineering, 1993 A diamond core drill has been well carried out in the ceramics drilling. In this investigation, a vertical type machining center (MC) was used in the coring of alumina ceramics with a metal bonded diamond core drill. To clarify the mechanism of coring, the influences of coring conditions on the coring force, grinding ratio, successive zone of coring ...
KITA, Yoshihiro +5 more
openaire +2 more sources
RNA‐related functions of BRCA2 in transcription, replication, and genome stability
FEBS Letters, EarlyView.Beyond its role in homologous recombination, BRCA2 regulates R‐loop homeostasis, DNA–RNA hybrid resolution, RNA polymerase II dynamics, and transcriptional activation. Disruption of any of these functions can contribute to genome instability, inflammatory signaling, and tumorigenesis. BRCA2 is a central tumor suppressor protein best known for its roles
Lucia Alvaro‐Aranda +2 more
wiley +1 more source
Ultrasonic-Assisted Surface Finishing of STAVAX Mold Steel Using Lab-Made Polishing Balls on a 5-Axis CNC Machining Center. [PDF]
Materials (Basel), 2023 Shiou FJ, Pan JN, Ding ZL, Lin SP.
europepmc +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
Approximation Model Development and Dynamic Characteristic Analysis Based on Spindle Position of Machining Center. [PDF]
Materials (Basel), 2022 Kim JW +5 more
europepmc +1 more source