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Problems associated with linear differential equations / M. Ben Ammar 

Public ISBD Titre : Problems associated with linear differential equations Type de document : texte imprimé Auteurs : M. Ben Ammar, Auteur ; W. D. Evans, Directeur de thèse Editeur : Pays de Galles : University of Wales Année de publication : 1988 Importance : 117 f. Présentation : ill. Format : 27 cm. Note générale : Mémoire de Magister : Mathématiques Pures: Royaume Uni, University of Wales : 1988 Bibliogr. f. 118 - 119 Langues : Anglais (eng) Mots-clés : Pure  --  mathematics  ;  Minimal  --  operators  ;  Maximal  --  operators  ;  Linear  --  differential  --  equations Index. décimale : M002388 Résumé : In this thesis we study the spectral properties of operators which are generated by general first-order differential expressions of the form τ = p(x) d/dx + q(x) in a weighted Hilbert space L²w(a,b). Since solutions of related integral equations can be obtained explicitly, we are able to analyse in detail the properties of these operators and give a much more complete description than is possible for higher-order differential operators. We are particularly concerned with expressions τ which are not formally symmetric, i.e., τ = τ⁺, where τ⁺ is the formal adjoint of τ and especially with the operators which are regularly solvable with respect to the minimal operators generated by τ and τ⁺ in the sense of W. D. Evans. Chapter I is an introduction in which the problems studied in the thesis are introduced. Also terms which will be used later are defined and results which are used often in the thesis are quoted. Chapter II deals with the regular problem. In II.1 there is some preliminary material on τ and τ⁺ and the conditions to be imposed on the coefficients are given and explained. The minimal operators T₀(τ), T₀(τ⁺) generated by τ, τ⁺ respectively are studied in detail in II.2. Operators S which are regularly solvable with respect to T₀(τ), T₀(τ⁺) are shown to be characterized by boundary conditions at the end points of [a,b], the eigenvalues and eigenvectors of S and its adjoint S* are found and their resolvents are constructed and discussed. The singular problem is discussed in chapter III and results analogous to those in chapter II are obtained. Particular attention is paid to the fields of regularity of T₀(τ) and T₀(τ⁺) in this case. Problems associated with linear differential equations [texte imprimé] / M. Ben Ammar, Auteur ; W. D. Evans, Directeur de thèse . - Pays de Galles : University of Wales, 1988 . - 117 f. : ill. ; 27 cm. Mémoire de Magister : Mathématiques Pures: Royaume Uni, University of Wales : 1988 Bibliogr. f. 118 - 119 Langues : Anglais (eng) Mots-clés : Pure  --  mathematics  ;  Minimal  --  operators  ;  Maximal  --  operators  ;  Linear  --  differential  --  equations Index. décimale : M002388 Résumé : In this thesis we study the spectral properties of operators which are generated by general first-order differential expressions of the form τ = p(x) d/dx + q(x) in a weighted Hilbert space L²w(a,b). Since solutions of related integral equations can be obtained explicitly, we are able to analyse in detail the properties of these operators and give a much more complete description than is possible for higher-order differential operators. We are particularly concerned with expressions τ which are not formally symmetric, i.e., τ = τ⁺, where τ⁺ is the formal adjoint of τ and especially with the operators which are regularly solvable with respect to the minimal operators generated by τ and τ⁺ in the sense of W. D. Evans. Chapter I is an introduction in which the problems studied in the thesis are introduced. Also terms which will be used later are defined and results which are used often in the thesis are quoted. Chapter II deals with the regular problem. In II.1 there is some preliminary material on τ and τ⁺ and the conditions to be imposed on the coefficients are given and explained. The minimal operators T₀(τ), T₀(τ⁺) generated by τ, τ⁺ respectively are studied in detail in II.2. Operators S which are regularly solvable with respect to T₀(τ), T₀(τ⁺) are shown to be characterized by boundary conditions at the end points of [a,b], the eigenvalues and eigenvectors of S and its adjoint S* are found and their resolvents are constructed and discussed. The singular problem is discussed in chapter III and results analogous to those in chapter II are obtained. Particular attention is paid to the fields of regularity of T₀(τ) and T₀(τ⁺) in this case.

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M002388	M002388	Papier	Bibliothèque centrale	Mémoire de Magister	Disponible

Documents numériques

BEN-AMMAR.M.pdf URL

Towards a more sophisticated cost-volume-profit analysis / Abdallah Laloui 

Public ISBD Titre : Towards a more sophisticated cost-volume-profit analysis Type de document : texte imprimé Auteurs : Abdallah Laloui, Auteur ; Chris Cowton, Directeur de thèse Editeur : Pays de Galles : University of Wales Année de publication : 1984 Importance : 168 f. Présentation : ill. Format : 30 cm. Note générale : Mémoire de Master : Management and Technology : Royaume-Uni, University of Wales : 1984 Bibliogr. f. 1 - 4 Langues : Anglais (eng) Mots-clés : Cost-volume-profit  analysis Business  enterprise Management Index. décimale : Ms00684 Résumé : Modern business enterprise complexity has made the task of managing and controlling economic resources a continuous process of choosing between alternative courses of action. Business always operates within certain constraints that Government imposes on it and within those constraints, the purpose is to maximize wealth. Many of the decisions involve a critical evaluation of differences in costs and revenues resulting from the alternative courses of action. To aid in decision-making resulting in changes in costs and revenues, a nimber of techniques have been developed. One group of techniques has come to be identified by the generic term Cost-Volume-Profit anlysis (C.V.P). The working environment of mangement has become fraught with the presence of constantly changing products with differences in profit contributions, differences in facilities usage with resultant changes in costs and productivity, and differences in channels of distribution (that is why WALTER RANSTENTRAUCH, the original inventor of the break-even chart, also offered the profit and loss chart and later worked on the sales mixture chart). Cost-Volume-Profit analysis has been adapted and expanded to fit the more complex environment. The purpose of this study in general is to illustrate how the Cost-Volume-Profit analysis approach could be modified and expanded to fit today's complex business enterprise and overcome the aforementioned historical limitations so that it will be a dynamic, workable and valid tool for modern management. In particular this study reviews the cost behaviour concept, discusses the CVP approach and its limitations and shows how it is still useful and can be applied in different domains of management. Finally it attempts to show how C.V.P analysis could be developed and extended to more complex problems. Towards a more sophisticated cost-volume-profit analysis [texte imprimé] / Abdallah Laloui, Auteur ; Chris Cowton, Directeur de thèse . - Pays de Galles : University of Wales, 1984 . - 168 f. : ill. ; 30 cm. Mémoire de Master : Management and Technology : Royaume-Uni, University of Wales : 1984 Bibliogr. f. 1 - 4 Langues : Anglais (eng) Mots-clés : Cost-volume-profit  analysis Business  enterprise Management Index. décimale : Ms00684 Résumé : Modern business enterprise complexity has made the task of managing and controlling economic resources a continuous process of choosing between alternative courses of action. Business always operates within certain constraints that Government imposes on it and within those constraints, the purpose is to maximize wealth. Many of the decisions involve a critical evaluation of differences in costs and revenues resulting from the alternative courses of action. To aid in decision-making resulting in changes in costs and revenues, a nimber of techniques have been developed. One group of techniques has come to be identified by the generic term Cost-Volume-Profit anlysis (C.V.P). The working environment of mangement has become fraught with the presence of constantly changing products with differences in profit contributions, differences in facilities usage with resultant changes in costs and productivity, and differences in channels of distribution (that is why WALTER RANSTENTRAUCH, the original inventor of the break-even chart, also offered the profit and loss chart and later worked on the sales mixture chart). Cost-Volume-Profit analysis has been adapted and expanded to fit the more complex environment. The purpose of this study in general is to illustrate how the Cost-Volume-Profit analysis approach could be modified and expanded to fit today's complex business enterprise and overcome the aforementioned historical limitations so that it will be a dynamic, workable and valid tool for modern management. In particular this study reviews the cost behaviour concept, discusses the CVP approach and its limitations and shows how it is still useful and can be applied in different domains of management. Finally it attempts to show how C.V.P analysis could be developed and extended to more complex problems.

Exemplaires

Code-barres	Cote	Support	Localisation	Section	Disponibilité	Spécialité	Etat_Exemplaire
Ms00684	Ms00684	Papier	Bibliothèque centrale	Mémoire de Master	Disponible

Documents numériques

LALOUI.Abdellah.pdf URL

A microcomputer controlled talking digital thermometer / Mourad Belattar 

Public ISBD Titre : A microcomputer controlled talking digital thermometer Type de document : texte imprimé Auteurs : Mourad Belattar, Auteur ; E. H. Jones, Directeur de thèse ; D. R. Hub, Directeur de thèse Editeur : Pays de Galles : University of Wales Année de publication : 1982 Importance : 98 f. Présentation : ill. Format : 30 cm. Note générale : Mémoire de Magister : Electronique : Royaume-Uni, University of Wales : 1982 Bibliogr. [2] f. Annexe [18] f Langues : Anglais (eng) Mots-clés : PET  microcomputer Digital  thermometer Speech  processor Temperature Index. décimale : M002282 Résumé : The principal aim of this project was to get the PET microcomputer to read the temperature measured by a Digital Thermometer and output the result in the form of speech through a speech synthesizer. A hardware interface was designed between the thermometer and one of the two I/O ports of the microcomputer. The other I/O port available was used for the control of the speech processor. A power supply for the system was designed along with a circuit to program control a heater in the working system constructed. The first program developed was to output the temperature as a finction of time. The built-in clock of the PET was used to give the current time. This gave a talking instrument with the additional facility of temperature and time being displayed on the screen of the microcomputer itself, or alternatively, to an on-line printer. A second program was devised to convert input text via the keyboard to speech. A microcomputer controlled talking digital thermometer [texte imprimé] / Mourad Belattar, Auteur ; E. H. Jones, Directeur de thèse ; D. R. Hub, Directeur de thèse . - Pays de Galles : University of Wales, 1982 . - 98 f. : ill. ; 30 cm. Mémoire de Magister : Electronique : Royaume-Uni, University of Wales : 1982 Bibliogr. [2] f. Annexe [18] f Langues : Anglais (eng) Mots-clés : PET  microcomputer Digital  thermometer Speech  processor Temperature Index. décimale : M002282 Résumé : The principal aim of this project was to get the PET microcomputer to read the temperature measured by a Digital Thermometer and output the result in the form of speech through a speech synthesizer. A hardware interface was designed between the thermometer and one of the two I/O ports of the microcomputer. The other I/O port available was used for the control of the speech processor. A power supply for the system was designed along with a circuit to program control a heater in the working system constructed. The first program developed was to output the temperature as a finction of time. The built-in clock of the PET was used to give the current time. This gave a talking instrument with the additional facility of temperature and time being displayed on the screen of the microcomputer itself, or alternatively, to an on-line printer. A second program was devised to convert input text via the keyboard to speech.

Exemplaires

Code-barres	Cote	Support	Localisation	Section	Disponibilité	Spécialité	Etat_Exemplaire
M002282	M002282	Papier	Bibliothèque centrale	Mémoire de Magister	Disponible

Documents numériques

BELATTAR.Mourad.pdf URL

Divisional performance / Djaffar Kaced

Public ISBD Titre : Divisional performance : measurement and control Type de document : texte imprimé Auteurs : Djaffar Kaced, Auteur ; Christopher Cowton, Directeur de thèse Editeur : Pays de Galles : University of Wales Année de publication : 1984 Importance : 96 f. Présentation : ill. Format : 30 cm. Note générale : Mémoire de Master : Génie Industriel : Pays de Galles, University of Wales : 1984 Bibliogr. f. 97 - 100 Langues : Anglais (eng) Mots-clés : Concepts  of  divisionalisation Performance  measurement Residual  income Index. décimale : Ms01486 Résumé : The objective and aim of this dissertation is to make an overall picture of the performance measurement needed to judge and control divisional performance. These profit-measures are, absolute profit, return on investment and residual income. The first chapter analyses the general concepts of divisionalisation - the reasons for divisionalisation, the advantages and disadvantages of divisionalisation and the classification of divisional decisions. The second chapter is concerned with the establishment of the performance measurement, their merits and some of their particular difficulties. The next two chapters concentrate on some specific problems of these criteria. Finally, the last chapter is concerned with some problems common to all divisional profit measures and their impact on profit. The dissertation's conclusion calls for more research and study to be done in the future, because most of the present criteria used to judge and control the divisional performance are incomplete. Divisional performance : measurement and control [texte imprimé] / Djaffar Kaced, Auteur ; Christopher Cowton, Directeur de thèse . - Pays de Galles : University of Wales, 1984 . - 96 f. : ill. ; 30 cm. Mémoire de Master : Génie Industriel : Pays de Galles, University of Wales : 1984 Bibliogr. f. 97 - 100 Langues : Anglais (eng) Mots-clés : Concepts  of  divisionalisation Performance  measurement Residual  income Index. décimale : Ms01486 Résumé : The objective and aim of this dissertation is to make an overall picture of the performance measurement needed to judge and control divisional performance. These profit-measures are, absolute profit, return on investment and residual income. The first chapter analyses the general concepts of divisionalisation - the reasons for divisionalisation, the advantages and disadvantages of divisionalisation and the classification of divisional decisions. The second chapter is concerned with the establishment of the performance measurement, their merits and some of their particular difficulties. The next two chapters concentrate on some specific problems of these criteria. Finally, the last chapter is concerned with some problems common to all divisional profit measures and their impact on profit. The dissertation's conclusion calls for more research and study to be done in the future, because most of the present criteria used to judge and control the divisional performance are incomplete.

Exemplaires

Code-barres	Cote	Support	Localisation	Section	Disponibilité	Spécialité	Etat_Exemplaire
Ms01486	Ms01486	Papier	Bibliothèque centrale	Mémoire de Master	Disponible

Asset valuation and income determination / Youcef Brahimi

Public ISBD Titre : Asset valuation and income determination Type de document : texte imprimé Auteurs : Youcef Brahimi, Auteur ; Maurice W. Pendlebury, Directeur de thèse Editeur : Pays de Galles : University of Wales Année de publication : 1984 Importance : 145 f. Format : 30 cm. Note générale : Mémoire de Master : Génie Industriel : Pays de Galles, University of Wales : 1984 Bibliogr. f. 146 - 151 Langues : Anglais (eng) Mots-clés : Asset  valuation Income  determination The  firm  and  accounting Concepts  of  income Index. décimale : Ms01484 Résumé : The theory and measurement of business income occupy a central place in the literature of financial and managerial accounting. The concept of income has been subject to many controversies and the debate over the fundamental nature of income is still unresolved. More-over the approaches of economists, accountants and lawyers to the concept of income differ from earch other in several important respects. Not surprisingly, the lack of agreement over the fundamental nature of income means that there is also lack of agreement over the precise rules for measuring it in complex business conditions. Because of the importance of the measurement of income in so many everyday affairs, particularly to users of financial reports, extensive and complicated rules for the determination of income have been developed. However, these rules or methods of valuation often conflict each other. Consequently, this leads to conflicts in income measurement. The purpose of this study is to examine some of the major features of the concept of business income with reference to asset valuation bases that have been proposed in the literature, taking into consideration the notion of capital maintenance. The overall conclusion is that there are many arguments in favour of and in opposition to all of these valuation methods. Each school claims that its particular valuation method would be more useful than the others. However, as far as users of financial reports are concerned it seems evident that there is no one measure of income that might be appropriate under all circumstances. The use of multi-column reporting with several income measures being reported is perhaps the most sensible approach to this problem. Asset valuation and income determination [texte imprimé] / Youcef Brahimi, Auteur ; Maurice W. Pendlebury, Directeur de thèse . - Pays de Galles : University of Wales, 1984 . - 145 f. ; 30 cm. Mémoire de Master : Génie Industriel : Pays de Galles, University of Wales : 1984 Bibliogr. f. 146 - 151 Langues : Anglais (eng) Mots-clés : Asset  valuation Income  determination The  firm  and  accounting Concepts  of  income Index. décimale : Ms01484 Résumé : The theory and measurement of business income occupy a central place in the literature of financial and managerial accounting. The concept of income has been subject to many controversies and the debate over the fundamental nature of income is still unresolved. More-over the approaches of economists, accountants and lawyers to the concept of income differ from earch other in several important respects. Not surprisingly, the lack of agreement over the fundamental nature of income means that there is also lack of agreement over the precise rules for measuring it in complex business conditions. Because of the importance of the measurement of income in so many everyday affairs, particularly to users of financial reports, extensive and complicated rules for the determination of income have been developed. However, these rules or methods of valuation often conflict each other. Consequently, this leads to conflicts in income measurement. The purpose of this study is to examine some of the major features of the concept of business income with reference to asset valuation bases that have been proposed in the literature, taking into consideration the notion of capital maintenance. The overall conclusion is that there are many arguments in favour of and in opposition to all of these valuation methods. Each school claims that its particular valuation method would be more useful than the others. However, as far as users of financial reports are concerned it seems evident that there is no one measure of income that might be appropriate under all circumstances. The use of multi-column reporting with several income measures being reported is perhaps the most sensible approach to this problem.

Exemplaires

Code-barres	Cote	Support	Localisation	Section	Disponibilité	Spécialité	Etat_Exemplaire
Ms01484	Ms01484	Papier	Bibliothèque centrale	Mémoire de Master	Disponible