Results 1 to 10 of about 9,586,286 (339)

Activation volume in superpressed glass-formers. [PDF]

open access: yesSci Rep, 2019
AbstractIn pressurized glass-forming systems, the apparent (changeable) activation volume Va(P) is the key property governing the previtreous behavior of the structural relaxation time (τ) or viscosity (η), following the Super-Barus behavior: $${\boldsymbol{\tau }}{\boldsymbol{(}}{\boldsymbol{P}}{\boldsymbol{)}}{\boldsymbol{,}}{\boldsymbol{\eta ...
Drozd-Rzoska A.
europepmc   +5 more sources

Activation volume of selected liquid crystals in the density scaling regime. [PDF]

open access: yesSci Rep, 2017
In this paper, we demonstrate and thoroughly analyze the activation volumetric properties of selected liquid crystals in the nematic and crystalline E phases in comparison with those reported for glass-forming liquids.
Grzybowski A, Urban S, Mroz S, Paluch M.
europepmc   +5 more sources

Transition-State Compressibility and Activation Volume of Transient Protein Conformational Fluctuations [PDF]

open access: yesJACS Au, 2021
Proteins are dynamic entities that intermittently depart from their ground-state structures and undergo conformational transitions as a critical part of their functions.
Matthias Dreydoppel   +4 more
doaj   +3 more sources

Microstructure and Deformation of Over-Aged Al-Zn-Mg-Cu Alloy with Fine Grains during Multiple Stress Relaxation Tests

open access: yesMetals, 2022
Strong obstacles can greatly impede the motion or transmission of dislocations, which can be reflected by strain rate sensitivity and activation volume. In this study, the strain rate sensitivity and activation volume of overaged Al-Zn-Mg-Cu alloys with ...
Peng Rong   +7 more
doaj   +1 more source

Active Volume Regulation in Adhered Cells [PDF]

open access: yesBiophysical Journal, 2020
Significance Living cells regulate their volume using a diverse set of mechanisms to maintain their structural and functional integrity. The most widely used mechanism to control cell volume is active ion transport. Recent experiments on adhered cells reveal that their volume is significantly reduced as their basal area is increased ...
Ram M. Adar, Samuel A. Safran
openaire   +5 more sources

The Effect of Strain Rate on the Deformation Processes of NC Gold with Small Grain Size

open access: yesCrystals, 2020
The strength of nanocrystalline (NC) metal has been found to be sensitive to strain rate. Here, by molecular dynamics simulation, we explore the strain rate effects on apparent Young’s modulus, flow stress and grain growth of NC gold with small size. The
Jialin Liu   +4 more
doaj   +1 more source

High-Temperature Nano-Indentation Creep Behavior of Multi-Principal Element Alloys under Static and Dynamic Loads

open access: yesMetals, 2020
Creep is a serious concern reducing the efficiency and service life of components in various structural applications. Multi-principal element alloys are attractive as a new generation of structural materials due to their desirable elevated temperature ...
Maryam Sadeghilaridjani   +1 more
doaj   +1 more source

Stress relaxation behavior of low carbon steel at different temperatures

open access: yesMaterials Research Express, 2023
In this paper, the stress relaxation behavior of Q235 with the initial tensile stress of 70, 85 and 100 MPa were investigated at different temperature. Based on the thermal activation theory, the stress relaxation model of Q235 steel was established, and
Shanchao Zuo   +6 more
doaj   +1 more source

Stoney vs. Histed: Quantifying the spatial effects of intracortical microstimulation

open access: yesBrain Stimulation, 2022
Background: Intracortical microstimulation (ICMS) is used to map neural circuits and restore lost sensory modalities such as vision, hearing, and somatosensation.
Karthik Kumaravelu   +4 more
doaj   +1 more source

Topological Active Volumes [PDF]

open access: yesEURASIP Journal on Advances in Signal Processing, 2005
The topological active volumes (TAVs) model is a general model for 3D image segmentation. It is based on deformable models and integrates features of region-based and boundary-based segmentation techniques. Besides segmentation, it can also be used for surface reconstruction and topological analysis of the inside of detected objects. The TAV structure
Barreira N, Penedo MG
openaire   +2 more sources

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