نتایج جستجو برای: transverse wave

تعداد نتایج: 259073  

2002
Thomas Voigt Surendra P. Shah

Introduction The nondestructive, in-situ testing of early-age concrete properties is a crucial point for the progress of many construction projects in the building sector. The application of such techniques can establish e.g. the earliest possible form removal from concrete construction elements, thereby opening highways to traffic or releasing prestress from steel reinforcement with greatest e...

2005
A. Bhatti F. Canelli B. Heinemann

A precise determination of the energy scale of jets at the Collider Detector at Fermilab at the Tevatron pp̄ collider is described. Jets are used in many analyses to estimate the energies of partons resulting from the underlying physics process. Several correction factors are developed to estimate the original parton energy from the observed jet energy in the calorimeter. The jet energy response...

2010
Frederick Southwick

The elastic properties of the unconsolidated materials which cover most of the earth are, in general, unknown. In this paper, an attempt was made to measure, in the field, the shear and compressional wave velocities, with the emphasis on those for shear waves. For this purpose,'a simple source was devised which produced fairly pure shear waves. A portable refraction seismograph of standard desi...

2011
José A. Oliveira-Lima Anabela Gonçalves Pronto Mário Ventim Neves

Modern energy demands led the scientific community to renewable energy sources, such as ocean wave energy. The present work describes a model for a cost efficient rotary electrical generator, optimized for ocean wave energy conversion. The electrical power, supplied by low speed mechanical movement, requires the use of electrical machinery capable of generating high amounts of torque. Among the...

2001
K. Batrakov

To simulate VFEL operation the superradiance from a short electron pulse moving in a volume diffraction grating is studied. It is supposed that Bragg condition for emitted photons is fulfilled and dynamical diffraction takes place. Spectral-angular distributions for transmitted and diffracted waves are derived. It is shown that the optimal geometry for superradiance exists and it is determined ...

2012
Fatimah A. Alshaikh

The purpose of this research is to study the reflection transverse waves in the GreenLindsay theory for kind of smart materials under initial stress and relaxation times effect. It is found that, for two dimensional model of thermo-piezoelectric material, there exists four waves namely, quasi-transverse wave (QS-mode), quasi-longitudinal wave (QP-mode), thermal wave ( -mode), and potential elec...

2012
S Ghosh B P Pal R K Varshney G P Agrawal

We investigate the influence of the phase front curvature of an input light beam on the transverse localization of light, choosing an evanescently coupled disordered one-dimensional semi-infinite waveguide lattice as an example. Our numerical study reveals that a finite phase front curvature of the input beam does indeed play an important role and it could degrade the quality of light localizat...

2013
V. Khachatryan A. M. Sirunyan A. Tumasyan W. Adam E. Aguilo T. Bergauer

Citation Chatrchyan, S., V. Khachatryan, A. M. Sirunyan, A. Tumasyan, W. Adam, E. Aguilo, T. Bergauer, et al. Search for Supersymmetry in Final States with a Single Lepton, B-quark Jets, and Missing Transverse Energy in Proton-proton Collisions at sqrt[s]=7TeV. Physical Review D 87, no. 5 (March 2013). © 2013 CERN, for the CMS Collaboration As Published http://dx.doi.org/10.1103/PhysRevD.87.052...

A.K Vashishth R Kumar, S Ghangas

The fundamental solution of the system of differential equations in bio-thermoelasticity with dual phase lag (DPL) in case of steady oscillations in terms of elementary function is constructed and basic property is established. The tissue is considered as an isotropic medium and the propagation of plane harmonic waves is studied. The Christoffel equations are obtained and modified with the ther...

Typically, many of the modern buildings have concrete walls constructed from cinder block walls, that have periodic nature in their relative dielectric constant. This periodic nature excites higher-order Floquet harmonic modes at microwave frequencies, which leads to the propagation of scattered waves along with non-specular directions. Periodic structures exhibit different behaviors when illum...

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