Results 81 to 90 of about 1,201,583 (289)

Study of Thickness Effect on Fracture Toughness of High Grade Pipeline Steel

open access: yesMATEC Web of Conferences, 2016
The critical fracture toughness decreases when thickness of specimens increases and stress-strain field in crack tip start changing to plane strain state from plane stress state. In this paper, fracture toughness tests were carried. Based on the analysis
Zhang Hua   +4 more
doaj   +1 more source

Stress-strain state horizontal coal seam of finite length

open access: yesҚарағанды университетінің хабаршысы. Математика сериясы, 2018
As the result of work, analytical expressions for calculation of tension in coal stratum of terminating length, which is under the influence of overlying breeds and is between two drifts are received.
M.K. Kudaibergenov   +2 more
doaj   +1 more source

On stress resultant plasticity and viscoplasticity for metal plates [PDF]

open access: yes, 2008
In this work we derive elastoplastic and elastoviscoplastic finite element formulations for stress resultant bending analysis of thin metal plates. The principle of maximum plastic dissipation is used to obtain the ingredients of the small strain stress ...
Brank, Boštjan, Dujc, Jaka
core   +1 more source

Antibiofilm activity of a chionodracine‐derived peptide by NMR‐based metabolomics of cell‐free supernatant of Acinetobacter baumannii clinical strains

open access: yesFEBS Open Bio, EarlyView.
KHS‐Cnd peptide is able to impair biofilm formation and disaggregate mature biofilms in Acinetobacter baumannii clinical isolates. Differences in extracellular metabolites reflect changes in biofilm metabolism due to KHS‐Cnd treatment. Among the differentially represented extracellular metabolites upon KHS‐Cnd treatment, the significantly altered ...
Fernando Porcelli   +9 more
wiley   +1 more source

Stress-strain state of space grid structure

open access: yesAcademic journal Industrial Machine Building Civil Engineering, 2020
One of the factors influencing the stress-strain state of the structure is the placement method of the columns and their step. The problem formulated in the article is to determine the design solution of the space grid structure with the least weight.
Nataliia Sribniak   +3 more
openaire   +1 more source

dUTPase is essential in zebrafish development and possesses several single‐nucleotide variants with pronounced structural and functional consequences

open access: yesFEBS Open Bio, EarlyView.
dUTPases are involved in balancing the appropriate nucleotide pools. We showed that dUTPase is essential for normal development in zebrafish. The different zebrafish genomes contain several single‐nucleotide variations (SNPs) of the dut gene. One of the dUTPase variants displayed drastically lower protein stability and catalytic efficiency as compared ...
Viktória Perey‐Simon   +6 more
wiley   +1 more source

The Application of the Stress Function Eri for Nuclear Reactor’s Fuel Elements Strain Analysis

open access: yesМеханика машин, механизмов и материалов, 2010
The mathematical-mechanical models for describe steady stressstrain state of the nuclear reactors fuel pins are proposed. The possibility of the application stress function Eri for determining stress-strain state of the atomic power station's fuel pins ...
I.S. Kulikov , P.I. Shirvel'
doaj  

Time-independent Anisotropic Plastic Behavior by Mechanical Subelement Models [PDF]

open access: yes, 1983
The paper describes a procedure for modelling the anisotropic elastic-plastic behavior of metals in plane stress state by the mechanical sub-layer model.
Pian, T. H. H.
core   +1 more source

Enzymatic degradation of biopolymers in amorphous and molten states: mechanisms and applications

open access: yesFEBS Open Bio, EarlyView.
This review explains how polymer morphology and thermal state shape enzymatic degradation pathways, comparing amorphous and molten biopolymer structures. By integrating structure–reactivity principles with insights from thermodynamics and enzyme engineering, it highlights mechanisms that enable efficient polymer breakdown.
Anđela Pustak, Aleksandra Maršavelski
wiley   +1 more source

Study of stress-strain state of the roller conveyor

open access: yesMetalurgija, 2022
Numerous studies have established that the damage to the lower surface of hot-rolled strips is mainly due to their friction against rollers of mill rollers. In this case, the probability of scoring, scrapes and other mechanical damage increases otherwise
D. Yergaliyev   +7 more
doaj  

Home - About - Disclaimer - Privacy