Everyone involved in gear design and production will benefit from the practical guidelines in this book. Refer to it on-the-job for tips on process selection process planning, cycle time formulas and calculations, speeds and feeds, and volume considerations. This book also includes many examples to make your process planning and cycle time estimating easier.
One of the New York Times’s Best Books of the 21st Century Named one of the most important nonfiction books of the 21st century by Entertainment Weekly‚ Slate‚ Chronicle of Higher Education‚ Literary Hub, Book Riot‚ and Zora A tenth-anniversary edition of the iconic bestseller—"one of the most influential books of the past 20 years," according to the Chronicle of Higher Education—with a new preface by the author "It is in no small part thanks to Alexander's account that civil rights organizations such as Black Lives Matter have focused so much of their energy on the criminal justice system." —Adam Shatz, London Review of Books Seldom does a book have the impact of Michelle Alexander's The New Jim Crow. Since it was first published in 2010, it has been cited in judicial decisions and has been adopted in campus-wide and community-wide reads; it helped inspire the creation of the Marshall Project and the new $100 million Art for Justice Fund; it has been the winner of numerous prizes, including the prestigious NAACP Image Award; and it has spent nearly 250 weeks on the New York Times bestseller list. Most important of all, it has spawned a whole generation of criminal justice reform activists and organizations motivated by Michelle Alexander's unforgettable argument that "we have not ended racial caste in America; we have merely redesigned it." As the Birmingham News proclaimed, it is "undoubtedly the most important book published in this century about the U.S." Now, ten years after it was first published, The New Press is proud to issue a tenth-anniversary edition with a new preface by Michelle Alexander that discusses the impact the book has had and the state of the criminal justice reform movement today.
Advanced Gear Manufacturing and Finishing offers detailed coverage of advanced manufacturing technologies used in the production of gears, including new methods such as spark erosion machining, abrasive water jet machining, additive layer manufacturing, laser shaping, and sustainable manufacturing of gears. The industry in this area is constantly producing new settings where gears must endure ever increasing stresses, strains, and temperatures. Advanced methods in manufacturing, finishing, and surface property enhancement have emerged in recent years to meet these challenges. This unique book takes a critical look at the state-of-the-art research into these new methods, and the latest improvements to classic technologies in both gear manufacturing and finishing. This book is essential reading for researchers and engineers working in the fields of powertrain manufacturing, gear technology, and advanced manufacturing technologies. - Describes the machining systems, main components, and working procedures with the help of diagrams and photos. - Demonstrates the mechanisms and capabilities of new methods. - Shows improvements to a range of gear manufacturing and finishing technologies. - Provides a critical review of recent research in a range of fields relevant to gear manufacturing technologies.
This is the third book in a series devoted to gear design and production. Comprising papers by scientists and gear experts from around the globe, it covers recent developments in practically all spheres of mechanical engineering related to gears and transmissions. It describes advanced approaches to research, design, testing and production of various kinds of gears for a vast range of applications, with a particular focuses on advanced computer-aided approaches for gear analysis, simulation and design, the application of new materials and tribological issues.
A collection of essays that demonstrate how LGBT people played critical roles in local, state, and national politics In the 1970s, queer Americans demanded access not only to health and social services but also to mainstream Democratic and Republican Party politics. The AIDS crisis of the 1980s made the battles for access to welfare, health care, and social services for HIV-positive Americans, many of them gay men, a critically important story in the changing relationship between sexual minorities and the government. The 1980s and 1990s marked a period in which religious right attacks on the civil rights of minorities, including LGBT people, offered opportunities for activists to create campaigns that could mobilize a base in mainstream politics and contribute to the gradual legitimization of sexual minorities in American society. Beyond the Politics of the Closet features essays by historians whose work on LGBT history delves into the decades between the mid-1970s and the millennium, a period in which the relationship between activist networks, the state, capitalism, and political parties became infinitely more complicated. Examining the crucial relationship between sexuality, race, and class, the volume highlights the impact gay rights politics and activism have had on the wider American political landscape since the rights revolutions of the 1960s. The three sections of Beyond the Politics of the Closet conceptualize LGBT politics both chronologically and thematically. The first section highlights the ways in which the immediate post-rights revolution period created new demands on the part of sexual minorities for social services, especially in health care and housing. The second examines the impact of the AIDS crisis on different aspects of national and local LGBT politics. The last section considers how analyzing LGBT politics can reorient our understanding of "the closet" and illuminate the challenges for those seeking to integrate questions of sexual rights into broader political narratives, whether of the left or the right. Contributors: Ian M. Baldwin, Katie Batza, Jonathan Bell, Julio Capó, Jr., Rachel Guberman, Clayton Howard, Kevin Mumford, Dan Royles, Timothy Stewart-Winter
Worm gears are special gears that resemble screws, and can be used to drive other gears. Worm gears, enable two non-touching shafts in a machine to mesh (join) together. This publication, unique in that it combines both theoretical and practical design aspects, including the latest results of research and development, provides detailed treatment of the theory and production of worm drives, as well as the overarching subject of production geometry of helicoidal surfaces.Included are mathematical models for a number of practical applications; a description of dressing equipment required; treatment of inspection and measurement; the use of intelligent systems; worm gearing for power transmission; selection criteria.·Covers theory and practice of the production and use of these common machine elements·Ideal for researchers and engineers dealing with mechanical drives, gears and manufacturing·The first single volume text in this diverse field
An NPR Favorite Book of the Year “Breaks new ground on social and educational questions of great import.” —Washington Post “An essential work, humane and candid, that challenges and expands our understanding of the lives of contemporary college students.” —Paul Tough, author of Helping Children Succeed “Eye-opening...Brings home the pain and reality of on-campus poverty and puts the blame squarely on elite institutions.” —Washington Post “Jack’s investigation redirects attention from the matter of access to the matter of inclusion...His book challenges universities to support the diversity they indulge in advertising.” —New Yorker The Ivy League looks different than it used to. College presidents and deans of admission have opened their doors—and their coffers—to support a more diverse student body. But is it enough just to admit these students? In this bracing exposé, Anthony Jack shows that many students’ struggles continue long after they’ve settled in their dorms. Admission, they quickly learn, is not the same as acceptance. This powerfully argued book documents how university policies and campus culture can exacerbate preexisting inequalities and reveals why some students are harder hit than others.
Named one of Vulture’s Top 10 Best Books of 2020! Leftist firebrand Fredrik deBoer exposes the lie at the heart of our educational system and demands top-to-bottom reform. Everyone agrees that education is the key to creating a more just and equal world, and that our schools are broken and failing. Proposed reforms variously target incompetent teachers, corrupt union practices, or outdated curricula, but no one acknowledges a scientifically-proven fact that we all understand intuitively: Academic potential varies between individuals, and cannot be dramatically improved. In The Cult of Smart, educator and outspoken leftist Fredrik deBoer exposes this omission as the central flaw of our entire society, which has created and perpetuated an unjust class structure based on intellectual ability. Since cognitive talent varies from person to person, our education system can never create equal opportunity for all. Instead, it teaches our children that hierarchy and competition are natural, and that human value should be based on intelligence. These ideas are counter to everything that the left believes, but until they acknowledge the existence of individual cognitive differences, progressives remain complicit in keeping the status quo in place. This passionate, voice-driven manifesto demands that we embrace a new goal for education: equality of outcomes. We must create a world that has a place for everyone, not just the academically talented. But we’ll never achieve this dream until the Cult of Smart is destroyed.
When the young Swedish-descended Alexandra Bergson inherits her father's farm in Nebraska, she must transform the land from a wind-swept prairie landscape into a thriving enterprise. She dedicates herself completely to the land—at the cost of great sacrifices. O Pioneers! [1913] is Willa Cather's great masterpiece about American pioneers, where the land is as important a character as the people who cultivate it. WILLA CATHER [1873-1947] was an American author. After studying at the University of Nebraska, she worked as a teacher and journalist. Cather's novels often focus on settlers in the USA with a particular emphasis on female pioneers. In 1923, she was awarded the Pulitzer Prize for the novel One of Ours, and in 1943, she was elected to the American Academy of Arts and Sciences.
