Results 11 to 20 of about 312,874 (254)

Measurement of Relaxation Modulus of Viscoelastic Materials and Design of Testing Device

open access: yesApplied Sciences, 2023
Viscoelastic parameters of viscoelastic materials should be measured to ensure their effective use. Unfortunately, devices for effective and accurate measurement of the relaxation modulus of materials are not currently available.
Lunlun Wan, Fuyan Lin
doaj   +1 more source

The largest prime factor of $X^3+2$ [PDF]

open access: yes, 2001
The largest prime factor of $X^3+2$ has been investigated by Hooley, who gave a conditional proof that it is infinitely often at least as large as $X^{1+\delta}$, with a certain positive constant $\delta$.
Heath-Brown, D. R.
core   +2 more sources

Foam pads properties and their effects on posturography in participants of different weight [PDF]

open access: yes, 2015
Background: Foam pads are increasingly used on force platforms during balance assessments in order to produce increased instability thereby permitting the measurement of enhanced posturographic parameters.
Fagan, Michael, Gosselin, Guy
core   +2 more sources

Changes in the mechanical properties of dermal sheep collagen during in vitro degradation [PDF]

open access: yes, 1995
The changes in tensile strength, elongation at break, and high strain modulus of dermal sheep collagen (DSC) during in vitro degradation using bacterial collagenase were studied.
Dijkstra, P.J.   +5 more
core   +3 more sources

Noise-Corrected Estimation of Complex Modulus in Accord With Causality and Thermodynamics: Application to an Impact Test. [PDF]

open access: yes, 2012
International audienceMethods for estimation of the complex modulus generally produce data from which discrete results can be obtained for a set of frequencies.
Collet, Pierre   +2 more
core   +2 more sources

Comparison of Relaxation Modulus Converted from Frequency- and Time-Dependent Viscoelastic Functions through Numerical Methods

open access: yesApplied Sciences, 2018
Due to the difficulty of obtaining relaxation modulus directly from experiments, many interconversion methods from other viscoelastic functions to relaxation modulus were developed in previous years.
Weiguang Zhang   +3 more
doaj   +1 more source

Nondestructive measurement of the mechanical properties of graphene nanoplatelets reinforced nickel aluminium bronze composites

open access: yesHeliyon, 2021
Nanoindentation is a viable method to assess the mechanical properties of developed alloys and composites at the nanometer scale without hampering the microstructure and integrity of materials.
Avwerosuoghene Moses Okoro   +3 more
doaj   +1 more source

Nonlocal description of sound propagation through an array of Helmholtz resonators [PDF]

open access: yes, 2015
A generalized macroscopic nonlocal theory of sound propagation in rigid-framed porous media saturated with a viscothermal fluid has been recently proposed, which takes into account both temporal and spatial dispersion.
Fang, Nicholas X.   +3 more
core   +4 more sources

The elastic modulus for maize stems

open access: yesPlant Methods, 2018
Background Stalk lodging is a serious challenge in the production of maize and sorghum. A comprehensive understanding of lodging will likely require accurate characterizations of the mechanical properties of such plants.
Loay Al-Zube   +3 more
doaj   +1 more source

Thruster fault identification method for autonomous underwater vehicle using peak region energy and least square grey relational grade

open access: yesAdvances in Mechanical Engineering, 2015
A novel thruster fault identification method for autonomous underwater vehicle is presented in this article. It uses the proposed peak region energy method to extract fault feature and uses the proposed least square grey relational grade method to ...
Mingjun Zhang   +3 more
doaj   +1 more source

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