Handbook of Molded Part Shrinkage and Warpage

Handbook of Molded Part Shrinkage and Warpage PDF Author: Jerry Fischer
Publisher: William Andrew
ISBN: 1455730572
Category : Technology & Engineering
Languages : en
Pages : 289

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Book Description
How easy life would be if only moldings were the same size and shape as the mold. But they never are, as molders, toolmakers, designers and end users know only too well. Shrinkage means that the size is always different; warpage often changes the shape too. The effects are worse for some plastics than others. Why is that? What can you do about it? The Handbook of Molded Part Shrinkage and Warpage is the first and only book to deal specifically with this fundamental problem. Jerry Fischer’s Handbook explains in plain terms why moldings shrink and warp, shows how additives and reinforcements change the picture, sets out the effect of molding process conditions, and explains why you never can have a single ‘correct’ shrinkage value. It goes on to demonstrate how to alleviate the problem through careful design of the molded part and the mold, and by proper material selection. It also examines computer-aided methods of forecasting shrinkage and warpage. And most important of all, the Handbook gives you the data you need to work with. Authoritative and rooted in extensive industrial experience, the expert guidance contained in this handbook offers practical understanding to novices, and new insights to readers already skilled in the art of injection molding and mold making Contains the answers to common problems and detailed advice on how to control mold and post-mold shrinkage and warpage Case Studies illustrate and enrich the text; Data tables provide the empirical data that is essential for success, but hard to come by

Handbook of Molded Part Shrinkage and Warpage

Handbook of Molded Part Shrinkage and Warpage PDF Author: Jerry Fischer
Publisher: William Andrew
ISBN: 1455730572
Category : Technology & Engineering
Languages : en
Pages : 289

Get Book Here

Book Description
How easy life would be if only moldings were the same size and shape as the mold. But they never are, as molders, toolmakers, designers and end users know only too well. Shrinkage means that the size is always different; warpage often changes the shape too. The effects are worse for some plastics than others. Why is that? What can you do about it? The Handbook of Molded Part Shrinkage and Warpage is the first and only book to deal specifically with this fundamental problem. Jerry Fischer’s Handbook explains in plain terms why moldings shrink and warp, shows how additives and reinforcements change the picture, sets out the effect of molding process conditions, and explains why you never can have a single ‘correct’ shrinkage value. It goes on to demonstrate how to alleviate the problem through careful design of the molded part and the mold, and by proper material selection. It also examines computer-aided methods of forecasting shrinkage and warpage. And most important of all, the Handbook gives you the data you need to work with. Authoritative and rooted in extensive industrial experience, the expert guidance contained in this handbook offers practical understanding to novices, and new insights to readers already skilled in the art of injection molding and mold making Contains the answers to common problems and detailed advice on how to control mold and post-mold shrinkage and warpage Case Studies illustrate and enrich the text; Data tables provide the empirical data that is essential for success, but hard to come by

Governance and Leadership in Shrinking Cities

Governance and Leadership in Shrinking Cities PDF Author: Stanisław Mazur
Publisher: Taylor & Francis
ISBN: 1000927547
Category : Business & Economics
Languages : en
Pages : 218

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Book Description
The aim of this publication is to look in depth at depopulation - a trend that is affecting an increasing number of cities worldwide. It has recently become a critical issue with a range of detrimental social, economic, spatial, and financial consequences. However, attempts by central and local governments to combat depopulation have yet to yield satisfactory results. Compelling evidence suggests that one of the reasons for this state of affairs is that the role of local (urban) leadership in devising solutions, mobilizing resources, and creating networks to address the problem has been underestimated. Moreover, according to the authors of this monograph, there is a significant positive correlation between urban leadership and the ability to effectively respond to and counteract the negative effects of depopulation. Without an understanding of the impact of urban leadership on the ability to address the negative consequences of urban depopulation, it is impossible to pursue effective public policies in this regard. This book presents a novel approach to explaining the ability of cities to combat depopulation through the prism of urban leadership quality. It compares domestic empirical research findings with international case studies, and offers a comprehensive review of valuable practices to counter urban shrinkage and depopulation, from both academic and practical perspectives. Further, the book provides a new interpretation of the processes associated with these trends. The magnitude of the phenomenon in question, the negative spatial, economic, and social consequences, as well as the relatively low effectiveness of policies aimed at its mitigation, will make this book an invaluable guide for researchers, and students from a wide range of disciplines including urban studies, economics, public management, leadership studies, local government, climate change and energy transition and urban movements. The audience will also comprise of policymakers and urban experts such as sociologists, planners, social geographers, economists, and architects.

Fall of an Icon

Fall of an Icon PDF Author: Joel Paris
Publisher: University of Toronto Press
ISBN: 9780802037725
Category : Psychology
Languages : en
Pages : 244

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Book Description
In The Fall of an Icon, Joel Paris narrates the history of this transition, placing it in the context of current trends in science and medicine.

Shape Classification and Analysis

Shape Classification and Analysis PDF Author: Luciano da Fona Costa
Publisher: CRC Press
ISBN: 0849379407
Category : Technology & Engineering
Languages : en
Pages : 693

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Book Description
Because the properties of objects are largely determined by their geometric features, shape analysis and classification are essential to almost every applied scientific and technological area. A detailed understanding of the geometrical features of real-world entities (e.g., molecules, organs, materials and components) can provide important clues about their origin and function. When properly and carefully applied, shape analysis offers an exceedingly rich potential to yield useful applications in diverse areas ranging from material sciences to biology and neuroscience. Get Access to the Authors’ Own Cutting-Edge Open-Source Software Projects—and Then Actually Contribute to Them Yourself! The authors of Shape Analysis and Classification: Theory and Practice, Second Edition have improved the bestselling first edition by updating the tremendous progress in the field. This exceptionally accessible book presents the most advanced imaging techniques used for analyzing general biological shapes, such as those of cells, tissues, organs, and organisms. It implements numerous corrections and improvements—many of which were suggested by readers of the first edition—to optimize understanding and create what can truly be called an interactive learning experience. New Material in This Second Edition Addresses Graph and complex networks Dimensionality reduction Structural pattern recognition Shape representation using graphs Graphically reformulated, this edition updates equations, figures, and references, as well as slides that will be useful in related courses and general discussion. Like the popular first edition, this text is applicable to many fields and certain to become a favored addition to any library. Visit http://www.vision.ime.usp.br/~cesar/shape/ for Useful Software, Databases, and Videos

Churchill's Eagles

Churchill's Eagles PDF Author: Richard Mead
Publisher: Pen and Sword Aviation
ISBN: 103610415X
Category : History
Languages : en
Pages : 396

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Book Description
An in-depth overview of the role of the Royal Air Force's leaders during World War II. The RAF did not come of age until the Second World War. The role of its forerunners in the Great War, the Royal Flying Corps and the Royal Naval Air Service, although important, was peripheral to that of the ground forces. The founding father of the RAF, Lord Trenchard, was determined that it should become a fully-fledged third service, equal in status to the Royal Navy and British Army, and this he succeeded in doing between the wars, firstly by setting up the RAF College at Cranwell, and Staff College at Andover, and secondly by providing a cost-effective policeman of the more rebellious parts of the British Empire. By 1939 the RAF had grown substantially, but, of the three best aircraft of the coming War, only the Supermarine Spitfire was in service, as neither the Avro Lancaster nor the De Havilland Mosquito would be available until early 1942. Aircraft, however, were not enough. It was the leaders of the RAF, the subjects of this book, who would take the battle to the enemy and who, after six long years, would prevail.

Velikiye Luki 1942–43

Velikiye Luki 1942–43 PDF Author: Robert Forczyk
Publisher: Bloomsbury Publishing
ISBN: 1472830717
Category : History
Languages : en
Pages : 97

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Book Description
Velikiye Luki had been an important Russian fortress city since the 13th century and had become an important rail-hub by the 19th century. In August 1941, the Germans occupied the city of 30,000 during Operation Barbarossa and made it a bulwark on the boundary between Heeresgruppe Nord and Heeresgruppe Mitte. In the winter of 1942–43, while Soviet forces were encircling Stalingrad, the Stavka (High Command) conducted a simultaneous offensive to isolate and destroy the 7,500-man German garrison in Velikiye Luki. After surrounding the city on 27 November 1942, the Soviet 3rd Shock Army gradually reduced the city to rubble, while the German garrison, sustained by Luftwaffe air lifts, hunkered down in the medieval city and awaited rescue. This illustrated title reveals the full story of the tense seven-week siege of Velikiye Luki, which saw Soviet forces striving to liberate the city in the face of a determined garrison and fierce relief efforts. Detailed analysis by renowned World War II historian Robert Forczyk is complimented by stunning and historically accurate battlescenes, maps, and bird's-eye-views to offer a comprehensive look at this gripping campaign.

History of United States Naval Operations: Korea

History of United States Naval Operations: Korea PDF Author: James A. Field
Publisher:
ISBN:
Category : Government publications
Languages : en
Pages : 524

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Book Description
Donated by Albert Benshoff.

A Bridge Too Far

A Bridge Too Far PDF Author: Cornelius Ryan
Publisher: Simon and Schuster
ISBN: 1439126712
Category : History
Languages : en
Pages : 822

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Book Description
The classic account of one of the most dramatic battles of World War II. A Bridge Too Far is Cornelius Ryan's masterly chronicle of the Battle of Arnhem, which marshalled the greatest armada of troop-carrying aircraft ever assembled and cost the Allies nearly twice as many casualties as D-Day. In this compelling work of history, Ryan narrates the Allied effort to end the war in Europe in 1944 by dropping the combined airborne forces of the American and British armies behind German lines to capture the crucial bridge across the Rhine at Arnhem. Focusing on a vast cast of characters—from Dutch civilians to British and American strategists to common soldiers and commanders—Ryan brings to life one of the most daring and ill-fated operations of the war. A Bridge Too Far superbly recreates the terror and suspense, the heroism and tragedy of this epic operation, which ended in bitter defeat for the Allies.

... of Bags, Counts and Nightmares

... of Bags, Counts and Nightmares PDF Author: Ron Marks
Publisher: Xlibris Corporation
ISBN: 1483640930
Category : History
Languages : en
Pages : 557

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Book Description
Tommie Bauer is an ordinary young American drafted into a war to defend freedom in Southeast Asia, a war that consumes his life, as he knew it. Through the eyes of this highly trained young patriot, we discover how constant exposure to killing, death and dying poses a serious threat to the psychological, physical and emotional wellbeing of a combatant. Day to day, while humping the thick jungles of Vietnam, Bauer escapes one days nightmare only to be engulfed in more gruesome ones in following days. His assigned mission is to seek and destroy the enemy. However, his immediate mission becomes the struggle to outlast the enemy while battling constant sorrow and hardship. Equally important, he must avoid occupying the next body bag tagged for appropriate disposal. He has to kill or be killed and do his part to increase the enemy body count, the bloody measure of who is winning. Bauer finds himself trapped in this brutal and morally confusing nether world. During his journey through hell he meets a precocious young nurse while convalescing. She unknowingly becomes the incentive Bauer needs to endure his ordeal. This is Bauers story, his struggle to rationalize the need for war and the carnage it creates. He is troubled by his exposure to combat and the changes he sees within himself, which he knows might haunt him the rest of his life.

Britain's Greatest Defeat

Britain's Greatest Defeat PDF Author: Alan Warren
Publisher: A&C Black
ISBN: 9781852855970
Category : History
Languages : en
Pages : 408

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Book Description
New in paperback, The pre-eminent history of a military disaster. A masterful analysis of events.