Results 31 to 40 of about 24,656 (242)

Mapping the cytoskeletal prestress [PDF]

American Journal of Physiology-Cell Physiology, 2010
Cell mechanical properties on a whole cell basis have been widely studied, whereas local intracellular variations have been less well characterized and are poorly understood. To fill this gap, here we provide detailed intracellular maps of regional cytoskeleton (CSK) stiffness, loss tangent, and rate of structural rearrangements, as well as their ...
Chan Young, Park, Dhananjay, Tambe, Adriano M, Alencar, Xavier, Trepat, En Hua, Zhou, Emil, Millet, James P, Butler, Jeffrey J, Fredberg   +7 more
openaire   +2 more sources

Evaluation of Prestress Loss Distribution during Pre-Tensioning and Post-Tensioning Using Long-Gauge Fiber Bragg Grating Sensors

Sensors, 2018
Prestress loss evaluation in prestressed strands is essential for prestressed structures. However, the sensors installed outside the duct can only measure the total prestress loss.
Sheng Shen, Yao Wang, Sheng-Lan Ma, Di Huang, Zhi-Hong Wu, Xiao Guo   +5 more
doaj   +1 more source

Fracture behavior of prestressed ductile target subjected to high velocity impact – Numerical study

Applied and Computational Mechanics, 2022
Impact studies are performed to evaluate the ballistic performance of material subjected to a high strain rate. At high velocities, the projectile penetrates through the material which leads to a fracture of the target body. The fracture behavior depends
Jasra Y., Saxena R. K.
doaj   +1 more source

Estimation of Prestress Force Distribution in the Multi-Strand System of Prestressed Concrete Structures

Sensors, 2015
Prestressed concrete (PSC) is one of the most reliable, durable and widely used construction materials, which overcomes the weakness of concrete in tension by the introduction of a prestress force.
Keunhee Cho, Sung Yong Park, Jeong-Rae Cho, Sung Tae Kim, Young-Hwan Park   +4 more
doaj   +1 more source

Prestress Self-Equilibrium Force-Finding Method for Cable-Supported Grid Structures Considering Zero-Stress State Form-Finding and the Construction Process

Buildings, 2022
The cable-supported grid structure (CSGS) is a hybrid structure combined with rigidity and flexibility. Its formed state is closely related to the zero-stress state, construction process, and prestress distribution.
Ningyuan Zhang, Bin Luo, Haixia Liu, Minquan Zhang   +3 more
doaj   +1 more source

Nonlinear stability of a single-layer hybrid grid shell

Journal of Civil Engineering and Management, 2012
This paper presents a study of a hybrid grid shell, which is made of quadrangular meshes diagonally stiffened by pre-tensioned thin cables. The construction of the hybrid structure by translating a spatial curve against another spatial curve is firstly ...
Jianguo Cai, Yixiang Xu, Jian Feng, Jin Zhang   +3 more
doaj   +1 more source

Sensitivity Analysis of Structural Parameters of Unequal-Span Continuous Rigid Frame Bridge with Corrugated Steel Webs

Applied Sciences, 2023
To investigate the effect of structural parameters of bridges with unequal spans on the bridge alignment, the finite element model simulating the full-scale bridge was developed, considering the construction process.
Maojun Duan, Fei Wang, Yutian Wu, Hao Tao, Danping Zhang   +4 more
doaj   +1 more source

Prestress and Area Compressibility of Actin Cortices Determine the Viscoelastic Response of Living Cells.

Physical Review Letters, 2020
Shape, dynamics, and viscoelastic properties of eukaryotic cells are primarily governed by a thin, reversibly cross-linked actomyosin cortex located directly beneath the plasma membrane.
A. Cordes, Hannes Witt, Aina Gallemí-Pérez, B. Brückner, F. Grimm, Marian Vache, T. Oswald, Jonathan F. E. Bodenschatz, D. Flormann, F. Lautenschläger, M. Tarantola, A. Janshoff   +11 more
semanticscholar   +1 more source

Mechanism Design with Singularity Avoidance of Crystal-Inspired Deployable Structures

Crystals, 2019
Although deployable structures have important applications in various fields, developing a new form of structural configuration faces some scientific challenges.
Yao Chen, Jiayi Yan, Jian Feng
doaj   +1 more source

Increased Cell Traction-Induced Prestress in Dynamically Cultured Microtissues

Frontiers in Bioengineering and Biotechnology, 2019
Prestress is a phenomenon present in many cardiovascular tissues and has profound implications on their in vivo functionality. For instance, the in vivo mechanical properties are altered by the presence of prestress, and prestress also influences tissue ...
Mathieu A. J. van Kelle, Mathieu A. J. van Kelle, Nilam Khalil, Jasper Foolen, Sandra Loerakker, Sandra Loerakker, Carlijn V. C. Bouten, Carlijn V. C. Bouten   +7 more
doaj   +1 more source