Results 31 to 40 of about 1,723,107 (335)

Increased Impact Resistance of Cross-Country Ski Poles by Improved, Simulation Assisted Composite Design

open access: yesProceedings, 2018
High-end carbon fibre reinforced polymer (CFRP) ski poles of today are lighter and stiffer than previous generations, explained by the higher specific stiffness (stiffness to density ratio) for CFRPs, typically in the range of 0.1 GPa m3/kg compared to ...
Martin Granlund   +4 more
doaj   +1 more source

A New Approach of the Design for Stiffness of Locomotive Bearer Springs

open access: yes机车电传动, 2021
With the development of material science technology, the various materials, process methods and adhesives of rubber formula have been developed as well. The bond strength between rubber and metal can even exceed the tensile strength of the rubber itself,
Yongguan WANG   +3 more
doaj  

Optimal Football Pressure as a Function of a Footballer’s Physical Abilities

open access: yesProceedings, 2018
Football is one of the most popular sports in the world. It is played by a diverse set of people, from little kids to professional athletes, who possess a large range of physical abilities and skill.
Andrew Christenson, Pei Cao, Jiong Tang
doaj   +1 more source

Stability of fixed-fixed shallow arches under arbitrary radial and vertical forces [PDF]

open access: yesИнженерно-строительный журнал, 2020
In the present paper the planar stability of fixed-fixed shallow circular arches is investigated. The arches are made of linearly elastic, functionally graded material and are subject to a concentrated radial or vertical dead force at an arbitrary ...
L.P. Kiss
doaj   +1 more source

Holographic aberration correction: optimising the stiffness of an optical trap deep in the sample [PDF]

open access: yes, 2011
We investigate the effects of 1st order spherical aberration and defocus upon the stiffness of an optical trap tens of μm into the sample. We control both these aberrations with a spatial light modulator. The key to maintain optimum trap stiffness over a
Bowman   +22 more
core   +1 more source

Large-Artery Stiffness in Health and Disease: JACC State-of-the-Art Review.

open access: yesJournal of the American College of Cardiology, 2019
A healthy aorta exerts a powerful cushioning function, which limits arterial pulsatility and protects the microvasculature from potentially harmful fluctuations in pressure and blood flow.
J. Chirinos   +3 more
semanticscholar   +1 more source

Establishment and Verification of Nonlinear Bolt Head Connection Stiffness Theoretical Model Based on Levenberg-Marquardt Method

open access: yesIEEE Access, 2020
Although some scholars have established the calculation method of bolt head connection characteristics, the method contains fewer influence factors; the calculation accuracy is not high, and the general applicability is limited.
Shikun Lu   +3 more
doaj   +1 more source

The acute effect of maximal exercise on central and peripheral arterial stiffness indices and hemodynamics in children and adults [PDF]

open access: yes, 2016
Xavier Melo is supported by a research grant from the Foundation for Science and Technology (FCT), Ministry of Education and Science of Portugal (grant: SFRH/ BD/ 70515/ 2010). Nuno M.
Fernhall, Bo   +6 more
core   +1 more source

Laboratory Evaluation of Organic and Chemical Warm Mix Asphalt Technologies for SMA Asphalt

open access: yesThe Baltic Journal of Road and Bridge Engineering, 2012
Warm mix asphalt (WMA) technologies allow significant lowering of the production and paving temperature of the conventional hot mix asphalt (HMA), which promise various benefits, e.g. lowering the greenhouse gas emissions, reduction of energy consumption,
Martins Zaumanis   +4 more
doaj   +1 more source

3D Collagen-Nanocellulose Matrices Model the Tumour Microenvironment of Pancreatic Cancer

open access: yesFrontiers in Digital Health, 2021
Three-dimensional (3D) cancer models are invaluable tools designed to study tumour biology and new treatments. Pancreatic ductal adenocarcinoma (PDAC), one of the deadliest types of cancer, has been progressively explored with bioengineered 3D approaches
Rodrigo Curvello   +8 more
doaj   +1 more source

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