Machine Elements‚ July - Nov 2013 Failure of materials Outline I 1 2 Failure of materials Classification Failure of Materials Ductile materials Von-mises criterion Factor of safety in Von-mises criterion 3 4 Mohr and Mohr-Coulomb theory for Ductile materials How to decide if material is ductile or brittle? Brittle materials Dowling factors to predict failure in brittle materials 5 6 7 Stress concentrations Stress concentrations Problem solution 3/83 Design of
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Expectancy theory proposes that a person will decide to behave or act in a certain way because they are motivated to select a specific behavior over other behaviors due to what they expect the result of that selected behavior will be.[1] In essence‚ the motivation of the behavior selection is determined by the desirability of the outcome. However‚ at the core of the theory is the cognitive process of how an individual processes the different motivational elements. This is done before making the ultimate
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Chapter 15 –part B p. 333 (Cameron) Motivation theories include Achievement-motivation theory Expectancy theory Equity theory Motivation theories are derived predominantly from the work of: Abraham Maslow (a psychologist) Achievement-motivation theory developed by: Focus: Atkinson‚ McClelland‚ and Veroff Aspects of personality characteristics and proposes 3 forms of motivation/needs in work situations (achievement‚ power‚ affiliation) Individuals are not as concerned with the
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Understanding Game Theory 9.3 A Non-Cooperative Game Model of Manager-Investor Conflict 9.3.1 Summary 9.4 Some Models of Cooperative Game Theory 9.4.1 Introduction 9.4.2 Agency Theory: An Employment Contract Between Firm Owner and Manager 9.5 Manager’s Information Advantage 9.5.1 Earnings Management 9.5.2 Controlling Earnings Management 9.6 Discussion and Summary 9.7 Agency Theory: A Bondholder-Manager Lending Contract 9.8 Implications of Agency Theory for Accounting
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The kinetic theory of gases describes a gas as a large number of small particles (atoms or molecules)‚ all of which are in constant‚ random motion. The rapidly moving particles constantly collide with each other and with the walls of the container. Kinetic theory explains macroscopic properties of gases‚ such as pressure‚ temperature‚ or volume‚ by considering their molecular composition and motion. Essentially‚ the theory posits that pressure is due not to static repulsion between molecules‚ as
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Adolescents With Cystic Fibrosis: A Test of Orem’s Theories of Self-Care and Self-Care Deficit Lois K. Baker‚ PhD‚ RN‚ CPNP Mary J. Denyes‚ PhD‚ RN‚ FAAN Pediatric nurses often struggle to find ways to encourage adolescents with cystic fibrosis (CF) to engage in self-care that is essential to their health and life. A study of predictors of self-care was conducted to provide a stronger evidence base for nursing practice with these youth. Orem’s theories of self-care and self-care deficit were tested
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concept of Leader-Member Exchange theory has gained greater prominence in the field of contemporary management practices. Using evidence from management research consider the extent to which LMX theory may be useful when applied to the role of the Manager of the Student Center. Although Leader-member exchange (LMX) has its limitations‚ when applied to the role of the Student Centre Manager it is extremely useful. LMX is a relationship based theory of leadership based on the interactions between a
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H EATHER I. S ULLIVAN Dirt Theory and Material Ecocriticism This essay speaks for dirty aesthetics. Although aesthetic landscapes readily inspire environmental thinking‚ a case can be made for grappling with the truly local dirty matter right at hand. Dirt‚ soil‚ earth‚ and dust surround us at all scales: we find them on our shoes‚ bodies‚ and computer screens; in fields and forests‚ and floating in the air. They are the stuff of geological structures‚ of the rocky Earth itself‚ and are
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efficient frontier “OCTOBER: This is one of the peculiarly dangerous months to speculate in stocks in. The other are July‚ January‚ September‚ April‚ November‚ May‚ March‚ June‚ December‚ August‚ and February.” (Mark Twain) Key ideas of portfolio theory • Risk of a single investment vs. the new investment as part of one’s existing portfolio? • Diversification = “Don’t put all your eggs in one basket” • Finding the least risky portfolio for any level of target return • Finding the portfolio with
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a situation as real‚ it is real only in its consequences. INTRODUCTION Labelling theory‚ stemming from the influences of Cooley‚ Mead‚ Tannenbaum‚ and Lemert‚ has its origins somewhere within the context of the twentieth century. However‚ Edwin Lemert is widely considered the producer and founder of the original version of labelling theory. This paper‚ not a summary‚ provides a brief history of labelling theory‚ as well as‚ its role in the sociology of deviance. It attempts to explore the contributions
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