• Refine Query
  • Source
  • Publication year
  • to
  • Language
  • 133
  • 26
  • 18
  • 12
  • 6
  • 4
  • 3
  • 3
  • 3
  • 2
  • 2
  • 2
  • 2
  • 2
  • 2
  • Tagged with
  • 302
  • 176
  • 58
  • 54
  • 48
  • 44
  • 43
  • 36
  • 35
  • 34
  • 34
  • 33
  • 32
  • 32
  • 30
  • About
  • The Global ETD Search service is a free service for researchers to find electronic theses and dissertations. This service is provided by the Networked Digital Library of Theses and Dissertations.
    Our metadata is collected from universities around the world. If you manage a university/consortium/country archive and want to be added, details can be found on the NDLTD website.
1

Coupling Effects of Inelastic Secondary Systems

Doiron, Gaston 12 1900 (has links)
The coupling effects of secondary inelastic systems on the primary and secondary seismic responses is the focus of this work. The interaction between a single-degree-of-freedom secondary system and a single-degree-of-freedom primary system is analyzed. The main objective is to determine the dynamic response of untuned and tuned systems when one or both systems behave inelastically. The Wilson-θ numerical integration method is used to determine the maximum response of the systems under coupled and uncoupled analyses. A total of 15 actual strong ground motion time histories are used in order to perform a statistical analysis. The influence of the A/V ratio (ratio of the peak ground acceleration to the peak ground velocity) of the earthquake records on the response using 3% and 5% damping ratio, is investigated. The influence of various parameters on the system response are considered. The primary fundamental frequencies of 10.0, 5.0, 1.0, and 0.2 Hz are used with frequency ratios (ratio of the secondary fundamental frequency to the primary secondary fundamental frequency) of 0.1 to 5.0 to study the effect of untuned systems. Special attention is given to the closely-tuned systems. The degree of inelasticity is varied by using yield level factors of 1.0, 0.75, 0.50 and 0.25. The emphases is placed on the behaviour o-F el aster-plastic systems. Mass ratios o-F 0.1, 1.0, 2.0, 5.0 and 10.0% are used. The results indicate that untuned systems can experience responses which are as important as tuned systems. The -Frequency content o-F the earthquake records is not an important -Factor. The eFFect o-F the mass ratio and yield level is mostly limited to systems with -Frequency ratios oF 0.8 to 1.25. / Thesis / Master of Engineering (ME)
2

Measurement and QCD analysis of the proton structure function F←2 from the 1994 HERA data using the ZEUS detector

Quadt, Arnulf January 1996 (has links)
No description available.
3

An electron energy loss spectrometer for studies of adsorption on Pd(111)

Timbrell, P. Y. January 1986 (has links)
No description available.
4

The kinetics and dynamics of the liquid surface from molecular beam scattering

Olgun, Asim January 1997 (has links)
No description available.
5

A theoretical study of resonances observed in '1'2C+'1'2C scattering

Fty, Peter Elliot January 1997 (has links)
No description available.
6

Vibrational energy transfer in gases at low temperatures

Reid, Jonathan Philip January 1997 (has links)
No description available.
7

Measurement of neutral current electron-proton cross sections with longitudinally polarised electrons using the Zeus detector /

Noor, Syed Umer. January 2007 (has links)
Thesis (Ph.D.)--York University, 2007. Graduate Programme in Physics and Astronomy. / Typescript. Includes bibliographical references (leaves 224-234). Also available on the Internet. MODE OF ACCESS via web browser by entering the following URL: http://gateway.proquest.com/openurl?url_ver=Z39.88-2004&res_dat=xri:pqdiss&rft_val_fmt=info:ofi/fmt:kev:mtx:dissertation&rft_dat=xri:pqdiss:NR39044
8

Theoretical analysis of inelastic molecular collisions applications to atom-diatom systems relevant to laser operation /

Ewing, Thomas F. January 1978 (has links)
Thesis--Wisconsin. / Vita. Includes bibliographical references (leaf 64).
9

Problems in the theory of nuclear structure

Mandel, G. January 1965 (has links)
No description available.
10

Inelastic scattering of neutrons from clathrate inclusion compounds and molecules in molecular sieves

Higgins, Julia S. January 1968 (has links)
No description available.

Page generated in 0.0343 seconds