Results 61 to 70 of about 1,873,474 (208)

Jump Training Analysis: An Application in Strength and Conditioning [PDF]

open access: yes, 2017
Force development is a crucial part of sports performance. Jumping is a mechanical movement used in various sports to analyze force production. Strength and Conditioning coaches work with athletes on improving sports performance through a variety of ...
Morgan, AshLynn
core   +1 more source

Nonlinear coupling of nano mechanical resonators to Josephson quantum circuits [PDF]

open access: yes, 2006
We propose a technique to couple the position operator of a nano mechanical resonator to a SQUID device by modulating its magnetic flux bias. By tuning the magnetic field properly, either linear or quadratic couplings can be realized, with a discretely ...
A. M. Kadin   +3 more
core   +2 more sources

Fatigue strength and fracture mechanics

open access: yesProcedia Structural Integrity, 2017
Abstract If fracture mechanics shall be applied to the total lifetime respectively the fatigue limit of components (within the meaning of the S-N curve approach) it has to address four challenges: (a) It has to adequately describe so-called short crack propagation, which cannot be based on the common long crack concepts for principle reasons ...
U. Zerbst, M. Madia, M. Vormwald
openaire   +1 more source

A Novel Aerodynamic Force and Flutter of the High-Aspect-Ratio Cantilever Plate in Subsonic Flow

open access: yesShock and Vibration, 2020
This paper focuses on the derivation of the aerodynamic force for the cantilever plate in subsonic flow. For the first time, a new analytical expression of the quasi-steady aerodynamic force related to the velocity and the deformation for the high-aspect-
Li Ma   +5 more
doaj   +1 more source

The resistance of selected high strength alloys to embrittlement by a hydrogen environment [PDF]

open access: yes
Selected high strength iron base and cobalt base alloys were resistant to degradation of mechanical properties in a one atmosphere hydrogen environment at ambient temperature. These alloys were strengthened initially by cold working which produced strain
Benson, R. B., Jr.
core   +1 more source

Approximate Analytical Methodology for the Restricted Three-Body and Four-Body Models Based on Polynomial Series

open access: yesInternational Journal of Aerospace Engineering, 2016
The restricted three-body problem (R3BP) and restricted four-body problem (R4BP) are modeled based on the rotating frame. The conservative autonomous system for the R3BP and nonautonomous system with period parametric resonance due to the fourth body are
Ying-Jing Qian   +3 more
doaj   +1 more source

In Vivo Corrosion of Two Novel Magnesium Alloys ZEK100 and AX30 and Their Mechanical Suitability as Biodegradable Implants [PDF]

open access: yes, 2011
In magnesium alloys, the components used modify the alloy properties. For magnesium implants in contact with bone, rare earths alloys are commonly examined.
Angrisani, Nina   +5 more
core   +3 more sources

Characteristics of developed flexible polyurethane foams reinforced with coconut coir fibres and recycled tyres [PDF]

open access: yes, 2012
Flexible Polyurethane (PU) foam is generally used in seat cushions of automotive seating for comfort and supporting the occupants. However, due to the demand for more comfortable compartment; seat cushions are now designed for better riding comfort
Chan, Wen Shan
core  

Mechanism of Mechanical Strengths for Corrugated Fiberboard.

open access: yesJAPAN TAPPI JOURNAL, 1994
Mechanism of mechanical strengths is discussed for corrugated fiberboards of single face, single wall and double wall. The strength under the tensile load is discussed by the experimental results of the tensile deformation. Their strengths under the surface compression and the uniform bending made from the applied moment of the axis along the machine ...
openaire   +2 more sources

Quasi-static and dynamic experimental studies on the tensile strength and failure pattern of concrete and mortar discs

open access: yesScientific Reports, 2017
As concrete and mortar materials widely used in structural engineering may suffer dynamic loadings, studies on their mechanical properties under different strain rates are of great importance.
Xiaochao Jin   +6 more
doaj   +1 more source

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