Results 81 to 90 of about 13,124,768 (302)
FEBS Letters, EarlyView.How do genomes gain new functional parts? In eukaryotes, which tend to evolve under weak selection, much of the genome is junk. Palazzo and Qiu borrow the logic of Markov chains to show how non‐functional DNA becomes functional through the appearance of intermediate states, which arise due to epistasis, buffering, and biochemical messiness, allowing ...
Alexander F. Palazzo, Yi Qiu
wiley +1 more source
Ellipticity loss analysis for tangent moduli deduced from a large strain elastic–plastic self-consistent model [PDF]
, 2009 In order to investigate the impact of microstructures and deformation mechanisms on the ductility of materials, the criterion first proposed by Rice is applied to elastic–plastic tangent moduli derived from a large strain micromechanical model combined ...
LORRAIN, Jean-Paul +5 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 +6 more
wiley +1 more source
Numerical Models for Induction Hardening of Gears [PDF]
, 2012 I modelli numerici permettono ai progettisti di evitare un approccio trial and error, lungo e costoso, nello stabilire i parametri di tempra. Questa Tesi pertanto affronta uno studio sull’influenza dei parametri di macchina sullo strato temprato di una ...
Mingardi, Damiano
core
MedžiagotyraThe thermo-stability of microstructure during isothermal annealing at 900 °C and 1000 °C in a cold-worked Cu-Al2O3 composite with 0.1 wt.% Al content and its effect on resistance to softening were investigated in this paper.
Dongping ZHANG +4 more
doaj +1 more source
Deformation Behavior of High-Mn TWIP Steels Processed by Warm-to-Hot Working
Metals, 2018 The deformation behavior of 18%Mn TWIP steels (upon tensile tests) subjected to warm-to-hot rolling was analyzed in terms of Ludwigson-type relationship, i.e., σ = K1·εn1 + exp(K2 − n2·ε). Parameters of Ki and ni
Vladimir Torganchuk +3 more
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
Ausnutzung und Verbesserung der Bake Hardening- und Work Hardening Effekte
, 2022 S.38-43Es sollen spezielle Work Hardening- und Bake Hardening-Stähle in der Umformung und bei der Wärmebehandlung untersucht werden, die hohe Streckgrenzen und Zugfestigkeiten bei gleichzeitig niedrigen Streckgrenzenverhältnissen aufweisen.
Birkenstock, Andreas +3 more
core +1 more source
Work-Hardening in Three-Dimensional Slip-Line Fields
Engineering Transactions, 1996 A slip-line field theory that includes rotational continuity, published in an earlier article and shown therein to lead to Hill's equiangular net, is extended to include work-hardening.
R.L. Bish
doaj
Metals, 2018 The objective of the present study is to analyze the microstructure and mechanical properties of a twinning-induced plasticity (TWIP) steel at different temperatures.
Flavio De Barbieri +4 more
doaj +1 more source