Maximizing reader insights into the key scientific disciplines of Machine Tool Metrology, this text will prove useful for the industrial-practitioner and those interested in the operation of machine tools. Within this current level of industrial-content, this book incorporates significant usage of the existing published literature and valid information obtained from a wide-spectrum of manufacturers of plant, equipment and instrumentation before putting forward novel ideas and methodologies. Providing easy to understand bullet points and lucid descriptions of metrological and calibration subjects, this book aids reader understanding of the topics discussed whilst adding a voluminous-amount of footnotes utilised throughout all of the chapters, which adds some additional detail to the subject. Featuring an extensive amount of photographic-support, this book will serve as a key reference text for all those involved in the field.
The subject of this book is surface metrology, in particular two major aspects: surface texture and roundness. It has taken a long time for manufacturing engineers and designers to realise the usefulness of these features in quality of conformance and quality of design. Unfortunately this awareness has come at a time when engineers versed in the use and specification of surfaces are at a premium. Traditionally surface metrology usage has been dictated by engineers who have served long and demanding apprenticeships, usually in parallel with studies leading to technician-level qualifications. Such people understood the processes and the achievable accuracies of machine tools, thereby enabling them to match production capability with design requirements. This synergy, has been made possible by the understanding of adherence to careful metrological procedures and a detailed knowledge of surface measuring instruments and their operation, in addition to wider inspection room techniques. With the demise in the UK of polytechnics and technical colleges, this source of skilled technicians has all but dried up. The shortfall has been made up of semi skilled craftsmen, or inexperienced graduates who cannot be expected to satisfy tradition al or new technology needs. Miniaturisation, for example, has had a pro found effect. Engineering parts are now routinely being made with nanometre surface texture and fiatness. At these molecular and atomic scales, the engineer has to be a physicist.
The first part of Volume I outlines the origins and development of CNC machine tools. It explains the construction of the equipment and also discusses the various elements necessary to ensure high quality of production. The second part considers how a company justifies the purchase of either cells or systems and illustrates why simulation exercises are essential prior to a full implementation. Communication protocols as well as networking topologies are examined. Finally, the important high-speed machining developments and the drive towards ultra-high precision are mentioned. Following a brief historical introduction to cutting tool development, chapters 1 and 2 of Volume II explain why CNC requires a change in cutting tool technology from conventional methods. A presentation is given of the working knowledge of cutting tools and cutting fluids which is needed to make optimal use of the productive capacity of CNC machines. Since an important consideration for any machine tool is how one can locate and restrain the workpiece in the correct orientation and with the minimum of set-up time, chapter 3 is concerned with workholding technology. Volume III deals with CNC programming. It has been written in conjunction with a major European supplier of controllers in order to give the reader a more consistent and in-depth understanding of the logic used to program such machines. It explains how why and where to program specific features of a part and how to build them up into complete programs. Thus, the reader will learn about the main aspects of the logical structure and compilation of a program. Finally, there is a brief review of so me of the typical controllers currently available from both universal and proprietary builders.
It is a well acknowledged fact that virtually all of our modern-day components and assemblies rely to some extent on machining operations in their manufacturing process. Thus, there is clearly a substantive machining requirement which will continue to be of prime importance for the foreseeable future. Cutting Tool Technology provides a comprehensive guide to the latest developments in the use of cutting tool technology. The book covers new machining and tooling topics such as high-speed and hard-part machining, near-dry and dry-machining strategies, multi-functional tooling, ‘diamond-like’ and ‘atomically-modified’ coatings, plus many others. Also covered are subjects important from a research perspective, such as micro-machining and artificial intelligence coupled to neural network tool condition monitoring. A practical handbook complete with troubleshooting tables for common problems, Cutting Tool Technology is an invaluable reference for researchers, manufacturers and users of cutting tools.
Pathology of the Human Placenta remains the most comprehensive and authoritative text in the field. It provides extensive information on the normal placenta, encompassing physiology, metabolism, and endocrinology, and covers the full range of placental diseases in great detail. Further chapters are devoted to abortions, molar pregnancies, multiple pregnancies, and legal considerations. This sixth edition of the book has been extensively revised and expanded to reflect the most recent progress in the field, and a brand new chapter has been added on artificial reproductive technology. Some 800 illustrations are included, many of them in color. The detailed index has been further improved and tables updated. Pathology of the Human Placenta will be of enormous value to pathologists and obstetrician-gynecologists alike.
The visual system must extract from the light that falls on the retina meaningful information about what is where in our environment. At an early stage it analyzes the incoming sensory data along many dimensions of pattern vision, e.g. spatial frequency, orientation, velocity, eye-of-origin. Visual Pattern Analyzers provides a definitive account of current knowledge about this stage of visual processing. Nowhere else can such a comprehensive summarty of the lower level pattern analyzers be found. The book's emphasis is on psychophysical experiments measuring the detection and identification of near-threshold patterns -- and the mathematical models, such as multidimensional signal-detection theory, used to draw inferences from such experimental results -- but neurophysiological evidence is presented and compared critically to the psychophysical evidence. Introductory material on psychophysical methods, signal detection theory, and the mathematics of Fourier analysis is given in order to make the book more accessible to all who are interested in the lower or higher levels of visual perception. This volume will be of great value to researchers and graduate students in the fields of vision and perception. Within the scientific community there is wide interest in the visual system, and the book will be of use to investigators in many fields, including psychophysics, neuroscience, ophthalmology and optics, computer science, and cognitive and experimental psychology.
The exploits of the twentieth, twenty-first, twenty-second, and twenty-third (Service) Battalions of the Northumberland Fusiliers during the Great War—“Harder Than Hammers.” Although called the Tyneside Scottish, very few of the men who made up this Brigade were of Scottish descent. Many came from local villages or were from the Northumberland pits. They saw action at the Battle of the Somme and after it were allowed to put tartan behind their cap badges because of their bravery. “This remarkable product of much research includes lists of those who received gallantry awards and of officers and other ranks. It is an informative book which will be of great help to anyone researching the Tyneside Scottish during WWI and which will also act as a keepsake for those who have a particular interest in the regiments.” —Northumberland & Durham Family History Society
Psychology is of interest to academics from many fields, as well as to the thousands of academic and clinical psychologists and general public who can't help but be interested in learning more about why humans think and behave as they do. This award-winning twelve-volume reference covers every aspect of the ever-fascinating discipline of psychology and represents the most current knowledge in the field. This ten-year revision now covers discoveries based in neuroscience, clinical psychology's new interest in evidence-based practice and mindfulness, and new findings in social, developmental, and forensic psychology.
The young bloods did not care whether they killed criminals or civilians . . .’ The Cartel is Britain’s biggest drugs gang, a global corporation employing thousands of criminals and flooding Britain with cocaine and heroin. Yet the established order is under threat: street gangs are overwhelming the old-school Cartel godfathers with a campaign of violence, intimidation and mayhem, heralding a series of events that has had devastating consequences for the whole of society. In Young Blood, the explosive follow-up to The Cartel, bestselling true-crime author Graham Johnson reveals how the brutal assassination of drug baron Colin ‘King Cocaine’ Smith in 2007 by a group of young bucks triggered the rise of the foot soldier, and exposes the bitter struggle that has spread throughout Europe as various factions battle to seize control of the most lucrative crime syndicate in British history.
Harlequin Intrigue brings you three new titles at a great value, available now! Enjoy these suspenseful reads packed with edge-of-your-seat intrigue and fearless romance. TANGLED THREAT by Heather GrahamYears ago, FBI agent Brock McGovern was arrested for a crime he didn’t commit. Now that he’s been cleared of all charges, he’ll do whatever it takes to find the culprit. With two women missing, Brock’s ex-girlfriend Maura Antrium is eager to help him. Can they find the killer…or will he find them first? THE SAFEST LIE A Winchester, Tennessee Thriller by Debra Webb Special Agent Sadie Buchanen is deep in the backcountry of Winchester, Tennessee, in order to retrieve a hostage taken by a group of extreme survivalists. When she finds herself in danger, she must rely on Smith Flynn, an intriguing stranger who is secretly an undercover ATF special agent. CONSTANT RISK The Risk Series: A Bree and Tanner Thriller by Janie CrouchA serial killer is loose in Dallas, and only Bree Daniels and Tanner Dempsey can stop him. With bodies piling up around them, can they find the murderer before more women die? Look for Harlequin Intrigue’s September 2019 Box set 2 of 2, filled with even more edge-of-your seat romantic suspense! Look for 6 compelling new stories every month from Harlequin® Intrigue! Join HarlequinMyRewards.com to earn FREE books and more. Earn points for all your Harlequin purchases from wherever you shop.
Proceedings of SPIE present the original research papers presented at SPIE conferences and other high-quality conferences in the broad-ranging fields of optics and photonics. These books provide prompt access to the latest innovations in research and technology in their respective fields. Proceedings of SPIE are among the most cited references in patent literature.
This accessible and clearly-structured book offers a comprehensive insight into the methods and principles of epidemiological study alongside an analysis of the broad context in which epidemiological work is undertaken. Chapters on sources of epidemiological data, on epidemiological study designs and on basic statistical measures for epidemiological studies are used to introduce the reader to the traditional underpinnings of epidemiological work. Attention then shifts to a wider canvas. Consideration is given to the critical reading of epidemiological research both as a way of demonstrating how different aspects of epidemiological study come together in published work and as the basis for a discussion of the centrality of epidemiological research in the development of evidence-based health care. The key facets of evidence-based health care are assessed. A more discursive and critical assessment of epidemiology is also presented in which attention is drawn to the need to develop alternative epidemiologies which draw on lay knowledge and recognise the socio-political context of factors influencing health status. The book concludes with a description of the everyday practice of epidemiology in a UK health authority context.
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