Results 31 to 40 of about 7,912,278 (276)

Novel Methods for the Computation of Small-Strain Damping Ratios of Soils from Cyclic Torsional Shear and Free-Vibration Decay Testing

open access: yesGeotechnics, 2021
This paper illustrates two novel methods for computing the small-strain hysteretic material damping ratio, λmin, of soils from the cyclic torsional shear (TS) and computing the small-strain viscous material damping ratio, Dmin, from the free-vibration ...
Zhongze Xu, Yumeng Tao, Lizeth Hernandez
doaj   +1 more source

Evaluation of deformation-induced anisotropy for plastically deformed polycarbonate

open access: yesMechanical Engineering Journal, 2021
In the present study, the deformation-induced anisotropic mechanical characteristics and the strain distribution are evaluated from the specimens cut from the necking part of polycarbonate.
Sho HIGUCHI, Kenichi SAKAUE
doaj   +1 more source

Effects of surface roughness of particles on small-strain dynamic properties of granular materials

open access: yesYantu gongcheng xuebao
The small-strain shear modulus and damping ratio are the important dynamic properties of granular soils, which are influenced by the packing density and stress states of the soil element as well as the particle characteristics including gradation, shape ...
ZHANG Tao 1, 3, WU Jian 2, WEI Xiao 1, 3, YANG Zhongxuan 1
doaj   +1 more source

Identification and characterization of a gene conferring stress resistance in Escherichia coli and cyanobacteria. [PDF]

open access: yesFEBS Open Bio
Functional screening identified PcSyn14890, a cyanobacteria‐specific protein that enhances growth and stress resistance in E. coli and Synechocystis PCC6803. Although we expected it to function as a molecular chaperone, it was unable to protect against thermal aggregation of GAPDH.
Yamada A   +7 more
europepmc   +2 more sources

Small Strain Behavior of Geomaterials: Modelling of Strain Rate Effects

open access: yesSoils and Foundations, 1997
ABSTRACT Experimental results for sand, gravel, sedimentary soft rock and stiff clay are presented which show that even at small strain levels (less than about 0.001%), these geomaterials exhibit nearly linear elastic behavior, but creep deformation and stress relaxation are not negligible.
BENEDETTO, HERVE DI, TATSUOKA, FUMIO
openaire   +2 more sources

Small-Strain Stress-Strain Properties of Expanded Polystyrene Geofoam

open access: yesSoils and Foundations, 2008
ABSTRACT The small-strain stress-strain properties of expanded polystyrene (EPS) geofoam with densities of about 20 kg/m3 and 30 kg/m3 were evaluated by laboratory unconfined compression tests on specimens of 75 mm in diameter and 150 mm in height.
ABDELRAHMAN, G. E.   +3 more
openaire   +2 more sources

Quantitative sensitivity analysis of surface attached optical fiber strain sensor [PDF]

open access: yes, 2014
Optical fiber strain sensors, in particular, the fiber Bragg grating (FBG) type, are widely applied in different applications. The most common installation method is surface-attached.
Wan, KT
core   +1 more source

Consistent Equations of Nonlinear Rectilinear Laminated Bars Theory in Quadratic Approximation [PDF]

open access: yesУчёные записки Казанского университета: Серия Физико-математические науки, 2017
Two versions of one-dimensional equilibrium equations for rectilinear laminated bars on basis of S.P. Timoshenko's model subject to transversal compression for each layer and describing geometrical nonlinear deformation by arbitrary displacements and ...
V.N. Paimushin, S.A. Kholmogorov
doaj  

Epidermal Passive RFID Strain Sensor for Assisted Technologies [PDF]

open access: yes, 2014
An epidermal passive wireless strain sensor using RFID tags is presented. The tag is intended to detect eyebrow or neck skin stretch where paraplegic patients have the capability to tweak facial muscles.
Rumens, C.V.   +3 more
core   +1 more source

Enteropathogenic E. coli shows delayed attachment and host response in human jejunum organoid‐derived monolayers compared to HeLa cells

open access: yesFEBS Letters, EarlyView.
Enteropathogenic E. coli (EPEC) infects the human intestinal epithelium, resulting in severe illness and diarrhoea. In this study, we compared the infection of cancer‐derived cell lines with human organoid‐derived models of the small intestine. We observed a delayed in attachment, inflammation and cell death on primary cells, indicating that host ...
Mastura Neyazi   +5 more
wiley   +1 more source

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