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Chan Lai To = 硏究巨磁阻自旋閥磁記錄頭的靈敏度與溫度之關係 / 陳麗圖. / Thesis (M.Phil.)--Chinese University of Hong Kong, 2000. / Includes bibliographical references (leaves 80-83). / Text in English; abstracts in English and Chinese. / Chan Lai To = Yan jiu ju ci zu zi xuan fa ci ji lu tou de ling min du yu wen du zhi guan xi / Chen Litu. / Abstracts --- p.ii / 論文摘要 --- p.iii / Acknowledgements --- p.iv / Table of Contents --- p.v / List of Figures --- p.viii / Abbreviations --- p.xi / Chapter Chapter 1 --- Introduction --- p.1 / Chapter 1.1 --- History of Data Storage in Computers --- p.1 / Chapter 1.2 --- Structure and Working Principle of the Recording Head of a Magnetic Disk Storage device --- p.2 / Chapter 1.2.1 --- Structure of a Current Magnetic Recording Head --- p.2 / Chapter 1.2.2 --- Principle of Recording --- p.6 / Chapter 1.2.2.1 --- General Operating Principle of a Magnetic Recording Head --- p.7 / Chapter 1.2.2.2 --- Principle of Recording using AMR Elements --- p.9 / Chapter 1.2.2.3 --- Principle of Recording using GMR Elements --- p.14 / Chapter 1.3 --- Reliability of Magnetic Recording Heads --- p.23 / Chapter 1.3.1 --- Importance in the Determination of Reliability of Magnetic Recording Heads --- p.23 / Chapter 1.3.2 --- Current Relevant Reliability Issues in the Field --- p.23 / Chapter 1.4 --- Objectives of the Thesis Work --- p.24 / Chapter Chapter 2 --- Methodology --- p.25 / Chapter 2.1 --- Sample Preparation --- p.25 / Chapter 2.2 --- Principle of Amplitude Thermal Robustness Measurements --- p.28 / Chapter 2.2.1 --- Black's Equation --- p.28 / Chapter 2.2.2 --- Thermal Coefficient (TC) or Temperature Resistivity Coefficient Test --- p.29 / Chapter 2.2.3 --- Temperature Rise (TR) --- p.31 / Chapter 2.2.4 --- Thermal Electrical (TE) Stress Test (Accelerated Test) --- p.34 / Chapter 2.2.5 --- Maximum MR Resistance for Normal Device Operation --- p.38 / Chapter 2.3 --- Magnetic Field Effects Induced by the Biasing Current in an ATR Measurement --- p.40 / Chapter Chapter 3 --- Experimental Results and Data Analysis --- p.41 / Chapter 3.1 --- Results of the ATR Measurement --- p.43 / Chapter 3.1.1 --- Thermal Coefficient (TC) Test Result --- p.43 / Chapter 3.1.2 --- Temperature Rise (TR) Results --- p.48 / Chapter 3.1.3 --- Thermal Electrical (TE) Stress Test Result --- p.51 / Chapter 3.1.4 --- Maximum MR Resistance for Normal Device Operation --- p.60 / Chapter 3.2 --- Preliminary Data from the Magnetic Field Effects Induced by the Biasing Current in an ATR Measurement --- p.61 / Chapter Chapter 4 --- Discussion of Results and Failure Mechanisms --- p.62 / Chapter 4.1 --- Summary of the ATR characteristics of GMR heads --- p.62 / Chapter 4.2 --- "Comparison of ATR characteristics of AMR and GMR, and Discussion of Failure Mechanisms" --- p.63 / Chapter 4.2.1 --- ATR characteristics and Failure Mechanisms of AMR --- p.63 / Chapter 4.2.1.1 --- Summary of ATR characteristics of AMR heads --- p.63 / Chapter 4.2.1.2 --- Electromigration (EM) Induced Failure in AMR --- p.65 / Chapter 4.2.1.3 --- Diffusion Induced Failure in AMR --- p.67 / Chapter 4.2.2 --- Possibility of Diffusion Induced Failure in GMR --- p.68 / Chapter 4.2.3 --- Possibility of EM Induced Failure in GMR --- p.69 / Chapter 4.3 --- Magnetic-field Dependent ATR characteristics of GMR --- p.69 / Chapter 4.3.1 --- Temperature Dependence of the Exchange Coupling Field --- p.70 / Chapter 4.3.2 --- Rotation or Reversal of Magnetic Moments of the Pinned Layer --- p.75 / Chapter 4.3.3 --- Relaxation of the Magnetization of the Pinning Layer --- p.77 / Chapter Chapter 5 --- Conclusions and Suggestions for Future Work --- p.78 / References --- p.80

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Thesis (Ph. D.)--University of Texas at Austin, 2000. / Vita. Includes bibliographical references (leaves 140-145). Available also in a digital version from Dissertation Abstracts.

Thesis (Ed. D.)--West Virginia University, 2004. / Title from document title page. Document formatted into pages; contains xi, 206 p. : ill. Vita. Includes abstract. Includes bibliographical references (p. 161-181).

University of Macau / Faculty of Social Sciences / Department of Government and Public Administration

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The aim of this research is threefold: • to determine the nature of job satisfaction; • to determine the management factors which influence the job satisfaction of heads of departments at secondary schools, and • to determine which management factors influence the job satisfaction of heads of department at secondary schools in practice. In order to achieve these aims a literature study and empirical study were undertaken. The literature study was based on primary and secondary sources. A DIALOG computer search was undertaken with the key words such as: job satisfaction, motivation, department heads, teachers and managers. Once the nature of job satisfaction was discussed and the management factors which influence the job satisfaction of heads of departments were identified a questionnaire was compiled. All heads of departments or the previous Transvaal Education Department were taken as target group. The method of systemized random group targeting was applied. Questionnaires were sent to heads of departments who fell within the group randomly targeted. The information was statistically analyzed with the aid of a computer after which it was interpreted. Subsequent to these results recommendations were made. The empirical study showed that the heads of departments at secondary schools in the Transvaal Education Department experience more job satisfaction than is generally accepted. Although there are a few factors, like compensation and professional status that don't contribute to job satistfaction, all the other factors generally do contribute to job satisfaction. / Skripsie (MEd (Onderwysbestuur))--PU vir CHO, 1996

The aim of this research is threefold: • to determine the nature of job satisfaction; • to determine the management factors which influence the job satisfaction of heads of departments at secondary schools, and • to determine which management factors influence the job satisfaction of heads of department at secondary schools in practice. In order to achieve these aims a literature study and empirical study were undertaken. The literature study was based on primary and secondary sources. A DIALOG computer search was undertaken with the key words such as: job satisfaction, motivation, department heads, teachers and managers. Once the nature of job satisfaction was discussed and the management factors which influence the job satisfaction of heads of departments were identified a questionnaire was compiled. All heads of departments or the previous Transvaal Education Department were taken as target group. The method of systemized random group targeting was applied. Questionnaires were sent to heads of departments who fell within the group randomly targeted. The information was statistically analyzed with the aid of a computer after which it was interpreted. Subsequent to these results recommendations were made. The empirical study showed that the heads of departments at secondary schools in the Transvaal Education Department experience more job satisfaction than is generally accepted. Although there are a few factors, like compensation and professional status that don't contribute to job satistfaction, all the other factors generally do contribute to job satisfaction. / Skripsie (MEd (Onderwysbestuur))--PU vir CHO, 1996