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The definitive book on the science of grease lubrication for roller and needle bearings in industrial and vehicle engineering. Grease Lubrication in Rolling Bearings provides an overview of the existing knowledge on the various aspects of grease lubrication (including lubrication systems) and the state of the art models that exist today. The book reviews the physical and chemical aspects of grease lubrication, primarily directed towards lubrication of rolling bearings. The first part of the book covers grease composition, properties and rheology, including thermal and dynamics properties. Later chapters cover the dynamics of greased bearings, including grease life, bearing life, reliability and testing. The final chapter covers lubrications systems – the systems that deliver grease to the components requiring lubrication. Grease Lubrication in Rolling Bearings: Describes the underlying physical and chemical properties of grease. Discusses the effect of load, speed, temperature, bearing geometry, bearing materials and grease type on bearing wear. Covers both bearing and grease performance, including thermo-mechanical ageing and testing methodologies. It is intended for researchers and engineers in the petro-chemical and bearing industry, industries related to this (e.g. wind turbine industry, automotive industry) and for application engineers. It will also be of interest for teaching in post-graduate courses.

Due to the rise in petroleum prices as well as increasing environmental concerns, there is a need to develop biochemicals and bioproducts that offer realistic alternatives to their traditional counterparts; this book will address the lack of a centralized resource of information on lubricants and greases from renewable sources, and will be useful to a wide audience in industry and academia. It is based on 20 years of research and development at the UNI-NABL Center, and discusses the various types of vegetable oils available, comparing their characteristics, properties and benefits against those of typical petroleum oils as well as discussing common evaluation tests and giving examples and case studies of successful applications of biobased lubricants and greases. Whilst scientific and engineering research data is included, the book is written in an accessible manner and is illustrated throughout. Focuses on an industrial application of lubrication technology undergoing current explosive growth in the global market. Includes a detailed review of the material benefits of plant-based lubricants that include a better viscosity index and lubricity even at extreme temperatures, lower flammability due to higher flash points and lower pour points. Covers the basic chemistry of vegetable oils as well as their profiles for use in lubricants and greases and environmental benefits. Includes examples and case studies of where vegetable-based lubricants have been successfully employed in industry applications.

Jorg Bockem ist Journalist, schreibt seit den Neunzigern fur die renommiertesten deutschen Zeitungen und Magazine. Und er ist ein Junkie. Schon im Alter von 14 Jahren hat er sich in den Drogenrausch verliebt. In Haschisch, LSD, Kokain – und Heroin. Mit 19 bringt ihn seine Heroinsucht zum ersten Mal ins Gefangnis, mit 33 versucht der Journalist im Drogenrausch seine Freundin zu erwurgen.

Although the origin of the term “greaser” is debated, its derogatory meaning never has been. From silent movies like The Greaser’s Revenge (1914) and The Girl and the Greaser (1913) with villainous title characters, to John Steinbeck's portrayals of Latinos as lazy, drunken, and shiftless in his 1935 novel Tortilla Flat , to the image of violent, criminal, drug-using gang members of East LA, negative stereotypes of Latinos/as have been plentiful in American popular culture far before Latinos/as became the most populous minority group in the U.S.In Greasers and Gringos , Steven W. Bender examines and surveys these stereotypes and their evolution, paying close attention to the role of mass media in their perpetuation. Focusing on the intersection between stereotypes and the law, Bender reveals how these negative images have contributed significantly to the often unfair treatment of Latino/as under American law by the American legal system. He looks at the way demeaning constructions of Latinos/as influence their legal treatment by police, prosecutors, juries, teachers, voters, and vigilantes. He also shows how, by internalizing negative social images, Latinos/as and other subordinated groups view themselves and each other as inferior. Although fighting against cultural stereotypes can be a daunting task, Bender reminds us that, while hard to break, they do not have to be permanent. Greasers and Gringos begins the charge of debunking existing stereotypes and implores all Americans to re-imagine Latinos/as as legal and social equals.

A fact-filled guide to coping with compulsive overeating problems by an experienced addictions doctor who draws on many patients’ stories of recovery. Overeating, binge eating, obesity, anorexia, and bulimia: Food Junkies tackles the complex, poorly understood issue of food addiction from the perspectives of a medical researcher and dozens of survivors. What exactly is food addiction? Is it possible to draw a hard line between indulging cravings for “comfort food” and engaging in substance abuse? For people struggling with food addictions, recognizing their condition – to say nothing of gaining support and advice – remains a frustrating battle. Built around the experiences of people suffering and recovering from food addictions, Food Junkies offers practical information grounded in medical science, while putting a face to the problems of food addiction. It is meant to be a knowledgeable and friendly guide on the road to food serenity.