Results 51 to 60 of about 1,733,478 (299)

Methodology of mechanical characterization of coated spherical materials [PDF]

, 2008
The aim of this work was to develop a methodology for the mechanical characterization of catalyst beads with a core-shell structure and more especially for coated spherical granules.
Celse, Benoit, Hemati, Mehrdji, Ould-Chikh, Samy, Rouleau, Loïc   +3 more
core   +1 more source

Revealing the structure of land plant photosystem II: the journey from negative‐stain EM to cryo‐EM

FEBS Letters, EarlyView.
Advances in cryo‐EM have revealed the detailed structure of Photosystem II, a key protein complex driving photosynthesis. This review traces the journey from early low‐resolution images to high‐resolution models, highlighting how these discoveries deepen our understanding of light harvesting and energy conversion in plants.
Roman Kouřil
wiley   +1 more source

Relating cell shape and mechanical stress in a spatially disordered epithelium using a vertex-based model

, 2017
Using a popular vertex-based model to describe a spatially disordered planar epithelial monolayer, we examine the relationship between cell shape and mechanical stress at the cell and tissue level. Deriving expressions for stress tensors starting from an
Goddard, Georgina, Jensen, Oliver, Nestor-Bergmann, Alexander, Woolner, Sarah   +3 more
core   +1 more source

Mechanical Stress Inference for Two Dimensional Cell Arrays [PDF]

, 2011
Many morphogenetic processes involve mechanical rearrangement of epithelial tissues that is driven by precisely regulated cytoskeletal forces and cell adhesion.
A Puliafito, AC Martin, AC Martin, AJ Engler, BI Shraiman, Boris I. Shraiman, C Bertet, D Choquet, D Weaire, DP Kiehart, E Evans, F Graner, F Meng, GW Brodland, J Folkman, J Käfer, J Stavans, JT Blankenship, Kevin K. Chiou, L He, L Hufnagel, L Wolpert, Lars Hufnagel, M Affolter, M Dembo, M Köppen, M Rauzi, M Wyart, MA Wozniak, O Hamant, R Farhadifar, R Goodyear, RA Foty, S Bao, S Gilbert, S Huang, S Huang, SJ Bray, SL Campbell, SM Hutson, Stanislav Shvartsman, T Hayashi, T Lecuit, V Mirabet   +43 more
core   +5 more sources

Mapping the evolution of mitochondrial complex I through structural variation

FEBS Letters, EarlyView.
Respiratory complex I (CI) is crucial for bioenergetic metabolism in many prokaryotes and eukaryotes. It is composed of a conserved set of core subunits and additional accessory subunits that vary depending on the organism. Here, we categorize CI subunits from available structures to map the evolution of CI across eukaryotes. Respiratory complex I (CI)
Dong‐Woo Shin, Tingting Chen, James A. Letts   +2 more
wiley   +1 more source

Diesel engine piston thermo-mechanical coupling simulation and multidisciplinary design optimization

Case Studies in Thermal Engineering, 2019
The temperature field distribution of the highly intensified diesel engine piston in static compression state and the thermo-mechanical coupling stress was calculated, compared with only consider the mechanical load, the results showed that the ...
Qin Zhaoju, Li Yingsong, Yang Zhenzhong, Duan Junfa, Wang Lijun   +4 more
doaj   +1 more source

Aluminum alloys with improved strength [PDF]

, 1975
Mechanical strength and stress corrosion of new BAR and 7050 alloys that include Zn instead of Cr have been studied and compared with those of 7075 aluminum alloy.
Adler, P., Deiasi, R.
core   +1 more source

A rate- and state-dependent ductile flow law of polycrystalline halite under large shear strain and implications for transition to brittle deformation [PDF]

, 2010
We have conducted double-shear biaxial deformation experiments in layers of NaCl within its fully-plastic (FP) regime up to large shear strains (γ < 50) with velocity steps.
Noda, Hiroyuki, Shimamoto, Toshihiko
core   +1 more source

Organoids in pediatric cancer research

FEBS Letters, EarlyView.
Organoid technology has revolutionized cancer research, yet its application in pediatric oncology remains limited. Recent advances have enabled the development of pediatric tumor organoids, offering new insights into disease biology, treatment response, and interactions with the tumor microenvironment.
Carla Ríos Arceo, Jarno Drost
wiley   +1 more source

Dynamics of mechanical signal transmission through prestressed stress fibers. [PDF]

PLoS ONE, 2012
Transmission of mechanical stimuli through the actin cytoskeleton has been proposed as a mechanism for rapid long-distance mechanotransduction in cells; however, a quantitative understanding of the dynamics of this transmission and the physical factors ...
Yongyun Hwang, Abdul I Barakat
doaj   +1 more source