Éditeur University of Sheffield
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Mohammed Bouhedja, Auteur ; I. C. Ward, Directeur de thèse | Sheffield : University of Sheffield | 1987In hot countries building densities are usually high, so as to minimize the heat gain from solar radiation. As a result the air motion through and around buildings is reduced. Thus the prime role which natural ventilation can play in cooling b[...]
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Nacereddine Benamrouche, Auteur ; M. McCormick, Directeur de thèse | Sheffield : University of Sheffield | 1991Many authors have examined the calculation of losses in induction motors fed from nonsinusoidal supplies using lumped circuit models. In published literature considerable controversy still exists as to the efficacy of a perticular model. In th[...]
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This thesis is concerned with the study of algebraic compactness for modules using systems of equations. The first two chapters provide an introduction to the subject via purity and pure-injectivity. In chapter 3 and 4, we discuss the various [...]
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Ahmed Lakoues, Auteur ; G. A. Taylor, Directeur de thèse | Sheffield : University of Sheffield | 1983Ketenes have been reacted with a number of polyenes to give the 1 : 1 and 2 : 1 adducts. The influence of the first formed cyclobutanone ring on the regioselectivity and stereoselectivity of the second ketene addition was studied. From the r[...]
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The main objective of this thesis is to provide support of linked oscillators model of electrical activity in gastrointestinal tract. Chapter 2 explains the work done by Alvarez in 'Currents in stomac and intestine'. Chapter 3, a general backg[...]
