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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.
Search results
Showing 111 to 120 of 19820 (0.046 seconds)| 111 |
Expression of the leukocyte common antigen family of molecules on bovine cellsBembridge, Gary Peter January 1994 (has links)
No description available.
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| 112 |
Interaction between hindered piperidine light stabilisers and antioxidants in the thermal and photochemical oxidation of polyolefinsHamidi, A. January 1987 (has links)
No description available.
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| 113 |
The effect of joints on the stability of shallow single layer lattice domesFathelbab, F. A. January 1987 (has links)
Considerable improvements in the technology of space frame joints have been achieved in recent years. The conventional procedure for the analysis and study of space structure stability assumes that the joints of these structures behave as either pure pins or are fully rigid despite the fact that the joints of most space structures are semi-rigid. The actual behaviour of joints has been shown to have a significant effect on the behaviour of space structures, especially for shallow single layer lattice domes. In this thesis the development of a general space frame member tangent stiffness matrix is reported. This matrix incorporates, in addition to the effects of axial force and bowing, the effects of joint characteristics. An algorithm for following the pre and post buckling behaviour of shallow single layer lattice domes has also been developed. The new tangent stiffness matrix and the new algorithm have been implemented in a computer program for the geometrically nonlinear analysis of space frames. Results obtained using the modified computer program have been tested against the available published results. The computer program developed is then used to analyse and study the stability of a number of experimental shallow single layer lattice dome models. In these tests, various combinations of member size, joint type, and load pattern were tested. The results of all these tests along with the corresponding computer predictions are presented in this thesis. The ability of the program to model accurately the observed experimental behaviour is clearly demonstrated as is the significant influence that joint bending stiffness has on the behaviour of shallow single layer lattice domes. In particular, realistic levels of joint bending stiffness are shown to produce a considerable improvement in load carrying capacity as compared with predictions based on pin jointed behaviour.
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| 114 |
The crust and upper mantle structure of IranAsudeh, I. January 1981 (has links)
No description available.
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| 115 |
Melting and subsidence at riftsBown, Jonathan W. January 1993 (has links)
No description available.
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| 116 |
Centrifugal modelling of surface footings subject to combined loadingsShi, Qun January 1988 (has links)
No description available.
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| 117 |
Relativistic theories of magnetic properties of atomsZhong, Cheng Zhang January 1987 (has links)
No description available.
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| 118 |
Crystallographic studies of intermediate states of haemoglobinLuisi, B. F. January 1986 (has links)
No description available.
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| 119 |
Enterprising identities : an examination of some identity characteristics of nascent and current small business ownersMacNabb, Anita January 2002 (has links)
No description available.
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| 120 |
X-ray studies of Taka alpha-amylase and penicillin acylaseSwift, Helen Juliet January 1990 (has links)
No description available.
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