Results 31 to 40 of about 12,187,245 (343)

Free vibration of bi-directional functionally graded sandwich plates using layerwise finite element approach [PDF]

open access: yesJournal of Applied Research on Industrial Engineering, 2021
In this paper, layerwise finite element analysis for the free vibration behavior of two-dimensional functionally graded sandwich plates with different boundary conditions is presented.
Laith Mazahreh, Ibrahim M. Abu-Alshaikh
doaj   +1 more source

Frequency of metamerism in natural scenes [PDF]

open access: yesJournal of the Optical Society of America A, 2006
Estimates of the frequency of metameric surfaces, which appear the same to the eye under one illuminant but different under another, were obtained from 50 hyperspectral images of natural scenes. The degree of metamerism was specified with respect to a color-difference measure after allowing for full chromatic adaptation.
Foster, David H.   +3 more
openaire   +3 more sources

Simplified analysis of structures using applied element method [PDF]

open access: yesSongklanakarin Journal of Science and Technology (SJST), 2021
The Applied Element Method (AEM) is a numerical method of structural analysis. The degrees of freedom are located at the centroid of an element, which is rigid. In AEM, many pairs of springs are provided on the faces of the element. Although the AEM is
Lincy Christy D.   +2 more
doaj   +1 more source

High-Resolution Topology Optimization with Stress and Natural Frequency Constraints

open access: yesAIAA Journal, 2019
Topology optimization tools offer the potential to design novel aerospace structures that are subject to demanding strength and natural frequency requirements.
M. K. Leader   +2 more
semanticscholar   +1 more source

Electron spin manipulation and resonator readout in a double quantum dot nano-electromechanical system

open access: yes, 2007
Magnetically coupling a nano-mechanical resonator to a double quantum dot confining two electrons can enable the manipulation of a single electron spin and the readout of the resonator's natural frequency.
H. Yamaguchi   +6 more
core   +1 more source

Improved two-dimensional cracked finite element for crack fault diagnosis

open access: yesComputer Assisted Methods in Engineering and Science, 2017
In this paper the two-dimensional finite element with an embedded edge crack proposed by Potirniche et al. (2008) is improved further for crack depth ratios ranging up to 0.9 and for predicting the natural frequency of a cracked beam more accurately ...
Aysha Kalanad, B. N. Rao
doaj   +1 more source

Comparison of Abstinence and Coital Frequency Between 2 Natural Methods of Family Planning [PDF]

open access: yes, 2014
Introduction The length of periodic abstinence, due to overestimation of the fertile phase of the menstrual cycle, is often a cause for dissatisfaction, discontinuation, and user error with natural family planning (NFP) methods.
Arévalo   +25 more
core   +2 more sources

Experimental Study on the Influence of Micro-Abrasive and Micro-Jet Impact on the Natural Frequency of Materials under Ultrasonic Cavitation

open access: yesMachines, 2022
The higher the natural frequency of the material is, the more resistant it is to deformation under impulse loading. To explore the influence of micro-abrasive and micro-jet impact on the natural frequency and resonance amplitude value of the material ...
Tianjiao Song   +3 more
doaj   +1 more source

Variable Natural Frequency Damper for Minimizing Response of Offshore Wind Turbine: Principle Verification through Analysis of Controllable Natural Frequencies

open access: yesJournal of Marine Science and Engineering, 2022
Resonance causes extreme stress, acceleration of fatigue, and reduction in lifespan of offshore wind structures. The main factors that cause resonance are environmental loads such as wind and waves, and dynamic loads caused by rotor movement.
Young-Suk You   +2 more
doaj   +1 more source

Shock‐capturing with natural high‐frequency oscillations [PDF]

open access: yesInternational Journal for Numerical Methods in Fluids, 2003
AbstractThis paper explores the potential of a newly developed conjugate filter oscillation reduction (CFOR) scheme for shock‐capturing under the influence of natural high‐frequency oscillations. The conjugate low‐ and high‐pass filters are constructed based on the principle of the discrete singular convolution (DSC), a local spectral method.
Zhou, Y.C., Gu, Y., Wei, G.W.
openaire   +3 more sources

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