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Fundamentals of Engineering Tribology with Applications - Harish Hirani - Bog - Cambridge University Press - Plusbog.dk

Fundamentals of Engineering Tribology with Applications - Harish Hirani - Bog - Cambridge University Press - Plusbog.dk

Tribology is related to friction, wear and lubrication of machine elements. Tribology not only deals with the design of fluid containment systems like seals and gasket but also with the lubrication of surfaces in relative motion. This book comprehensively discusses the theories and applications of hydrodynamic thrust bearing, gas (air) lubricated bearing and elasto-hydrodynamic lubrication. It elucidates the concepts related to friction, including coefficient of friction, friction instability and stick-slip motion. It clarifies the misconception that harder and cleaner surfaces produce better results in wear. Recent developments, including online condition monitoring (an integration of moisture sensor, wear debris and oil quality sensors) and multigrid technique, are discussed in detail. The book also offers design problems and their real-life applications for cams, followers, gears and bearings. MATLAB programs, frequently asked questions and multiple choice questions are interspersed throughout for easy understanding of the topics.

DKK 671.00
1

Retrofitting Collaboration into the New Public Management - Elizabeth Eppel - Bog - Cambridge University Press - Plusbog.dk

Retrofitting Collaboration into the New Public Management - Elizabeth Eppel - Bog - Cambridge University Press - Plusbog.dk

This Element is about the challenges of working collaboratively in and with governments in countries with a strong New Public Management (NPM) influence. As the evidence from New Zealand analyzed in this study demonstrates, collaboration – working across organization boundaries and with the public – was not inherently a part of the NPM and was often discouraged or ignored. When the need for collaborative public management approaches became obvious, efforts centered around “retrofitting” collaboration into the NPM, with mixed results. This Element analyzes the impediments and catalysts to collaboration in strong NPM governments and concludes that significant modification of the standard NPM operational model is needed including: Alternative institutions for funding, design, delivery, monitoring and accountability; New performance indicators; Incentives and rewards for collaboration; Training public servants in collaboration; Collaboration champions, guardians, complexity translators, and stewards; and paradoxically, NPM governance processes designed to make collaborative decisions stick.

DKK 218.00
1

Domestic Interests, Democracy, and Foreign Policy Change - Brett Ashley Leeds - Bog - Cambridge University Press - Plusbog.dk

Domestic Interests, Democracy, and Foreign Policy Change - Brett Ashley Leeds - Bog - Cambridge University Press - Plusbog.dk

When new leaders come to office, there is often speculation about whether they will take their countries'' foreign policies in different directions or stick to their predecessors'' policies. We argue that when new leaders come to power who represent different societal interests and preferences than their predecessors, leaders may pursue new foreign policies. At the same time, in democracies, leadership selection processes and policymaking rules blunt leaders'' incentives and opportunities for change. Democracies thus tend to pursue more consistent foreign policies than nondemocracies even when new leaders with different supporting coalitions assume office. Statistical analyses of three distinct foreign policy areas – military alliances, UNGA voting, and economic sanctions – provide support for our argument. In a fourth area – trade – we find that both democracies and nondemocracies are more likely to experience foreign policy change when a new leader with a different supporting coalition comes to power. We thus conclude that foreign policy responds to domestic political interests, and that, even as the interests supporting leaders change, democracies'' foreign policies are no less stable than those of nondemocracies and often exhibit greater consistency.

DKK 218.00
1