Results 71 to 80 of about 1,765,804 (200)
International Journal of Electrical and Computer Engineering (IJECE), 2015 <p>The usual way to avoid a computer shutdown during a mains failure is to connect an uninterruptible power supply system (UPS), which can be suitably modified and fitted inside the computer cabinet by the use of proposed methodology known as a dc UPS.
Ganesh S +4 more
openaire +2 more sources
The effect of ion plated silver and sliding friction on tensile stress-induced cracking in aluminum oxide [PDF]
A Hertzian analysis of the effect of sliding friction on contact stresses in alumina is used to predict the critical load for crack generation. The results for uncoated alumina and alumina coated with ion plated silver are compared.
Sliney, Harold E., Spalvins, Talivaldis
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Nanotechnology Reviews, 2019 The nanoscratch test has been identified as one of the important tools for evaluating the mechanical and tribological properties of materials. This paper reviews the current researches on the nanoscratch test using to characterise the mechanical ...
Wang Xianfeng +7 more
doaj +1 more source
A Structural Safety Analysis of Buildings During Construction [PDF]
, 1981 The safety of steel buildings, constructed by the tier method, is evaluated. The probability of failure of steel frames supported on temporary connections is examined during the different stages of completion.
Ang, A.H-S., Karshenas, S.
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Mechanical behavior of irregular fibers part III : the flexural buckling behavior
, 2002 Fiber buckling behavior is associated with fabric-evoked prickle, which affects clothing comfort and aesthetics. In this paper, the flexural buckling behavior of irregular or nonuniform fibers is studied using the finite element method (FEM).
Dolling, M. +7 more
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Tribocontact surface exploration after friction in hexanoic acid solution
Advanced Engineering Research, 2019 Introduction. The paper considers the evolution of friction coefficient of the pair of copper - steel alloy under friction in a hexanoic acid solution in various concentrations, and antiwear properties of the steel-steel friction pair in an oil-acidic ...
E. G. Drogan, V. E. Burlakova
doaj +1 more source
Cascade Failure in a Phase Model of Power Grids
, 2012 We propose a phase model to study cascade failure in power grids composed of generators and loads. If the power demand is below a critical value, the model system of power grids maintains the standard frequency by feedback control.
Amaral L. A. N. +15 more
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Critical Load Prediction in Notched E/Glass-Epoxy-Laminated Composites Using the Virtual Isotropic Material Concept Combined with the Average Strain Energy Density Criterion. [PDF]
Polymers (Basel), 2021 Sánchez M +3 more
europepmc +1 more source
, 2008 We present a high-resolution microwave spectrometer to measure the frequency-dependent complex conductivity of a superconducting thin film near the critical temperature.
Atsutaka Maeda +3 more
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Characterizing the uncertainty in holddown post load measurements [PDF]
In order to understand unexpectedly erratic load measurements in the launch-pad supports for the space shuttle, the sensitivities of the load cells in the supports were analyzed using simple probabilistic techniques.
Richardson, J. A., Townsend, J. S.
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