Results 51 to 60 of about 4,982 (304)

Creep-fatigue crack growth behaviour of P91 steels [PDF]

open access: yes, 2016
The importance of predicting failure due to combined creep-fatigue crack growth in high temperature power-plant components has become of great importance importance due to the need for plant to ‘load follow’ in response to fluctuations in demands and the
Nikbin, K. M.   +2 more
core   +2 more sources

Structural insights and therapeutic targets in Acinetobacter baumannii capsule biosynthesis

open access: yesFEBS Letters, EarlyView.
Hypervirulent KL49 A. baumannii's capsular polysaccharide contains the nonulosonic acid 8‐epi‐Leg5,7Ac2, synthesized by epimerization via ElaA, ElaB, and ElaC. Crystal structures of ElaA, ElaB, and ElaC reveal their role in CMP‐Leg5,7Ac2 synthesis and regioselective C8 epimerization.
Woo Cheol Lee   +7 more
wiley   +1 more source

Experimental and numerical investigation of creep crack growth

open access: yes, 2022
S.563-576 : Abb.,Tab.,Lit.Experimental and numerical results are presented for the high-temperature alloy Ni Cr 22 Co 12 Mo (Inconel 617) at the constant temperature of 900 degrees C.
Hollstein, T., Kienzler, R.
core  

Three phosphatase families form a community: The phosphohydrolases that act upon inositol pyrophosphates

open access: yesFEBS Letters, EarlyView.
Inositol pyrophosphates are energy‐rich signaling molecules that perform critical functions in cells. Three different families of phosphatases hydrolyze the β phosphate of the inositol pyrophosphate molecules: two have narrow specificities and one is promiscuous.
Ronda J. Rolfes
wiley   +1 more source

Dimethyl fumarate combined with cisplatin at subcytotoxic doses sensitizes cervical cancer toward ferroptosis and apoptosis through GSH restriction and p53 (re)activation

open access: yesMolecular Oncology, EarlyView.
Dimethyl fumarate (DMF) reduces growth of HPV‐positive cervical cancer spheroids and induces ferroptosis in cervical cancer cells via blocking SLC7A11/Glutathione (GSH) axis. Combination of subcytotoxic doses of DMF and cisplatin (CDDP) further suppresses spheroid growth and drives cell death in 2D culture models.
Carolina Punziano   +6 more
wiley   +1 more source

Cyclic J-integral using the linear matching method

open access: yes, 2013
The extended version of the latest Linear Matching Method (LMM) has the capability to evaluate the stable cyclic response, which produces cyclic stresses, residual stresses and plastic strain ranges for the low cycle fatigue assessment with cyclic load ...
Chen, Haofeng, Chen, Weihang
core   +1 more source

Creep crack initiation and creep crack growth assessments in welded structures

open access: yesNuclear Engineering and Design, 2001
Abstract In this study, creep crack initiation and creep crack growth in welded structure are analysed. An interaction phenomenon between base metal and weld metal in a cross weld plate is highlighted with a finite element model. A simplified method based on the reference stress approach is proposed to evaluate C * in welded structures.
Assire, Aimery   +2 more
openaire   +2 more sources

EDNRB‐dependent endothelin signaling reduces proliferation and promotes proneural‐to‐mesenchymal transition in gliomas

open access: yesMolecular Oncology, EarlyView.
Glioma cells mainly express the endothelin receptor EDNRB, while EDNRA is restricted to a perivascular tumor subpopulation. Endothelin signaling reduces glioma cell proliferation while promoting migration and a proneural‐to‐mesenchymal transition associated with poor prognosis. This pathway activates Ca2+, K+, ERK, and STAT3 signalings and is regulated
Donovan Pineau   +36 more
wiley   +1 more source

Theoretical, experimental and numerical investigations of creep crack growth

open access: yes, 2022
S.339-346The paper shows the derivation of integral fracture concept from conservation laws of general continuum mechanics. Its applicability to cracks under steady- state creep conditions is demonstrated experimentally. The numerical procedure necessary
Hollstein, T., Kienzler, R.
core  

Geometry and Material Constraint Effects on Creep Crack Growth Behavior in Welded Joints

open access: yesHigh Temperature Materials and Processes, 2017
In this work, the geometry and material constraint effects on creep crack growth (CCG) and behavior in welded joints were investigated. The CCG paths and rates of two kinds of specimen geometry (C(T) and M(T)) with initial cracks located at soft HAZ ...
Li Y., Wang G. Z., Xuan F. Z., Tu S. T.
doaj   +1 more source

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