An investigation of minor elements distribution in sedimentary and metamorphic carbonates was made. A copper oxide D. C. Arc Technique of spectrographic analysis was developed for determination of minor elements in carbonates. Forty-five samples of carbonates extracted from Paleozoic limestones of Alberta and Ontario, Precambrian marbles of Ontario and from Grenville Lens and Vein Carbonates of Ontario and Quebec were analyzed, and the concentrations of Mg, Mn, Fe, Sr, Ba, Pb, Al, Si, Ti, B, Cr, and Ni were determined. The structure and some chemical properties of carbonates were discussed. An attempt to locate the minor elements in the crystal structure was made. / Thesis / Master of Science (MS)

The thesis explores the new expansions of eigenvalues for -£Gu =£f£lu in S with the Dirichlet boundary condition u=0 on $partial S$ by two conforming elements: the linear element $P_1$ and the bilinear element $Q_1$, and three non-conforming elements: the rotated bilinear element (denoted $Q_1^{rot}$), the extension of $Q_1^{rot}$ (denoted $EQ_1^{rot}$) and Wilson's element. The expansions indicate that $P_1$, $Q_1$ and $Q_1^{rot}$ provide the upper bounds of the eigenvalues, and $EQ_1^{rot}$ and Wilson's elements provide the lower bounds of the eigenvalues. Comparing the five finite elements, the $Q_1^{rot}$ element is more accurate. By the extrapolation, the superconvergence $O(h^4)$ can be obtained where $h$ is the boundary length of uniform squares. Numerical experiment are carried to verify the theoretical analysis made. (°Ñ·Ó¹q¤lÀÉp.4)

Objective of the thesis is to develop a finite element that is effective for simulation of thin-walled behavior, such as in metal forming processes. The thesis includes six chapters and is structured as follows. The first chapter presents the objects for the research. The second chapter introduces background methods which will be incorporated in the solid-shell elements. The third chapter develops an alternative ANS technique and applies it to the solid-shell elements. As a result, in that chapter a new solid-shell element based on the alternative ANS technique is proposed. Elastic applications of the just developed solid-shell element are illustrated in Chapter 4. In Chapter 5, plasticity theory and numerical problems in plasticity deformation are presented. The thesis specially concentrates on treating a current industrial problem: spring back prediction. Results in Chapter 4 and Chapter 5 demonstrate the capabilities of the proposed solid-shell element. Chapter 6 withdraws conclusions and then makes some remarkable future developments.

No description available.

This study is based on the M-R environmental psychology model, and investigates if social element and contextual element of social-servicescape conceptual models can affect consuming emotions and behavior. Moreover, this study examines the role of cognitive appraisal and extends the M-R environmental psychology model to include both emotional states and cognitive appraisal as mediators of the social-servicescape and coping behavior relationships. It adopts scenario experiment manipulation method to understand how the social element and contextual element affect cognitive appraisal, consuming emotions and behavior of approach or avoidance. The finding of the research is as followed. 1. Social element and contextual element can affect consuming emotions. 2. Under the social-servicescape, contextual element can affect coping behavior, and this relationship will be mediated by consuming emotions. 3. Social element can affect goal congruence significantly. 4. Under the social-servicescape, consuming emotions and goal congruence can affect coping behavior significantly. 5. The relationship between social-servicescape and goal congruence can be mediated by consuming emotions.

published_or_final_version / Civil and Structural Engineering / Doctoral / Doctor of Philosophy

published_or_final_version / Civil and Structural Engineering / Master / Master of Philosophy

No description available.

No description available.

No description available.