Results 81 to 90 of about 11,866,665 (347)

Topology Optimization with Explicit Components Considering Stress Constraints

Applied Sciences
Topology optimization focuses on the conceptual design of structures, characterized by a large optimization space and a significant impact on structural performance, and has been widely applied in industrial fields such as aviation and aerospace. However,
Yubao Ma, Zhiguo Li, Yuxuan Wei, Kai Yang   +3 more
doaj   +1 more source

The ubiquitin‐proteasome system and autophagy as guardians of the cellular proteome

FEBS Letters, EarlyView.
This Perspective covers the three principles governing the crosstalk between the ubiquitin‐proteasome system and autophagy in cellular proteostasis: (1) a shared ubiquitin code routing substrates via shuttle factors or autophagy receptors; (2) spatial compartmentalization into phase‐separated degradation hubs and organelle‐specific modules (exemplified
Ivan Dikic
wiley   +1 more source

Press-Fit Placement of a Rectangular Block Implant in the Resorbed Alveolar Ridge: Surgical and Biomechanical Considerations

Bioengineering
Rectangular Block Implant (RBIs) were manufactured, using computer-aided-design lathe turning, surface roughened with grit blasting and gamma irradiated.
Efthimios Gazelakis, Roy B. Judge, Joseph E. A. Palamara, Shiva Subramanian, Mohsin Nazir   +4 more
doaj   +1 more source

Thermoelastic stress analysis of laminated composite materials

, 2009
In this work thermoelastic stress analysis (TSA) is used to obtain quantitative stress/strain data from a variety of multi-directional laminated composites. In order to interpret the thermoelastic signal correctly the source of the thermoelastic response
Sambasivam, Shamala
core  

Stress concentration factors in uniplanar tubular KT-joints of jacket structures subjected to in-plane bending loads [PDF]

, 2016
In the present research, data extracted from the stress analysis of 46 finite element models, verified using test results obtained from an experimental investigation, were used to study the effect of geometrical parameters on the chord-side stress ...
Ahmadi, Hamid, Nejad, Ali Ziyaei
core  

Fatigue strength evaluation of small defect at stress concentration

, 2017
The effect of individual large notches on the fatigue strength of components is one of the oldest and most studied topics in the history of metal fatigue.
M. Åman, Yuzo Tanaka, Y. Murakami, H. Remes, G. Marquis   +4 more
semanticscholar   +1 more source

An unexpected alternative viologen electron mediator site in tungsten‐containing formate dehydrogenase

FEBS Letters, EarlyView.
An unexpected alternative interaction site for ethyl viologen was identified in formate dehydrogenase 1 from Methylorubrum extorquens. Combined mutagenesis, kinetic analysis, and docking revealed that aromatic residues near an iron–sulfur cluster enable flavin mononucleotide‐independent electron transfer, offering a framework for engineering improved ...
Eleni G. Poloniataki, Yong Hwan Kim
wiley   +1 more source

Derivation of the stress concentrations at holes in orthotropic plates using thermoelastic stress analysis

, 2009
An experimental study of the stress distribution around holes in orthotropic composite laminates has been conducted using thermoelastic stress analysis (TSA).
Quinn, S., Sambasivam, S., Dulieu-Barton, J.M.   +2 more
core  

Acute Stress Improves Concentration Performance

, 2020
Acute stress can have both detrimental and beneficial effects on cognitive processing, but effects on concentration performance remain unclear. Here, we investigate the effects of acute psychosocial stress on concentration performance and possible ...
Schwaninger, Adrian, Wirtz, Petra H., Hedinger, Patrik, Heimgartner, Nadja, Ehlert, Ulrike; https://orcid.org/, Degroote, Cathy, Ehlert, Ulrike, Wirtz, Petra H; https://orcid.org/   +7 more
core   +1 more source

Maternal psychosocial stress during pregnancy and placenta weight: evidence from a national cohort study [PDF]

, 2010
To study in a large-scale cohort with prospective data the associations between psychosocial stress during pregnancy and placenta weight at birth. Animal data suggest that the placenta is involved in stress-related fetal programming.; We defined a priori
Andrea H Meyer, Meyer Andrea H., Greene, Naomi, Jørn Olsen, Olsen Jørn, Gunther Meinlschmidt, Meyer, Andrea H., Marion Tegethoff, Naomi Greene, Marion Tegethoff, Tegethoff Marion, Tegethoff, Marion, Olsen, Jørn, Meinlschmidt Gunther, Andrea H. Meyer, Greene Naomi, Meinlschmidt, Gunther   +16 more
core   +1 more source