Mass Contacts

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Mass Contacts

Stefano Breccia
Mass Contacts Book PDF

Author : Stefano Breccia
Publisher : AuthorHouse
Page : 390 pages
File Size : 54,5 Mb
Release : 2009
Category : Body, Mind & Spirit
ISBN : 1438906781

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Mass Contacts by Stefano Breccia Pdf

Mass Contacts is an astounding story that says that Contact has begun from one who knows. A detailed report of contacts with human type aliens on the Adriatic coast, which answers many of our questions, this book is a milestone for ufologists wh study Contact. They were here and many look like us! It's time for disclosure. Paola Leopizzi Harris-Researcher and Author: Connecting the Dots; Making Sense of UFO Phenomena; Exopolitics: How Does One Speak to a Ball of Light? This book is a true milestone in the spreading of the reality of contacts between our humanity and extraterrestrials, both in the past and now; it gives rise to vital importants, hints in order to understand the epoch-making events that are waiting for us, and inteat with them in the best way. Tom Bosco-NEXUS Magazine-Edizione Italiana Eng. Stefani Breccia and I are friends, and have been responsible keepers of truths that not always were sharable with other people. Both of us have dedicated a significant part of our lives to UFO's, myself trying to spread this reality in the best way. Stefano trying to understand its roots, both being aware of how important the phenomenon is. And so I have acted as a midwife to the important result of Stefano's work, being convinced that reading this book is at the same time necessary and useful. Roberto Pinotti-Director, Centro Ufologico Nationale (CUN), Italy This book, based upon memories of experiences covering a period of many years, is charming above all for it concerns the contact, first, and then the coexistence of humans and aliens, working toward a single goal. Paolo Di Girolama-Professor and writer.

Electrical Contacts

Paul G. Slade
Electrical Contacts Book PDF

Author : Paul G. Slade
Publisher : CRC Press
Page : 1116 pages
File Size : 42,6 Mb
Release : 1999-03-31
Category : Technology & Engineering
ISBN : 0824719344

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Electrical Contacts by Paul G. Slade Pdf

Covering the choice, attachment, and testing of contact materials, Electrical Contacts introduces a thorough discussion on making electric contact and contact interface conduction, presents a general outline of, and measurement techniques for, important corrosion mechanisms, discusses the results of contact wear when plug-in connections are made and broken, investigates the effect of thin noble metal plating on electronic connections, relates crucial considerations for making high- and low-power contact joints, details arcing effects on contacts including contact erosion, welding, and contamination, and contains nearly 2800 references, tables, equations, drawings, and photographs.

Multibody Dynamics with Unilateral Contacts

Friedrich Pfeiffer,Christoph Glocker
Multibody Dynamics with Unilateral Contacts Book PDF

Author : Friedrich Pfeiffer,Christoph Glocker
Publisher : John Wiley & Sons
Page : 329 pages
File Size : 42,9 Mb
Release : 2008-09-26
Category : Technology & Engineering
ISBN : 9783527618392

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Multibody Dynamics with Unilateral Contacts by Friedrich Pfeiffer,Christoph Glocker Pdf

As mechanical systems become more complex so do the mathematical models and simulations used to describe the interactions of their parts. One area of multibody theory that has received a great deal of attention in recent years is the dynamics of multiple contact situations occurring in continuous joints and couplings. Despite the rapid gains in our understanding of what occurs when continuous joints and couplings interact, until now there were no books devoted exclusively to this intriguing phenomenon. Focusing on the concerns of practicing engineers, Multibody Dynamics with Unilateral Contacts presents all theoretical and applied aspects of this subject relevant to a practical understanding of multiple unilateral contact situations in multibody mechanical systems. In Part 1, Professor Pfeiffer and Dr. Glocker provide an exhaustive review of the laws and principles governing the dynamics of unilateral contacts in multibody mechanical and technical systems. Among the topics covered are multibody and contact kinematics, the dynamics of rigid body systems, multiple contact configurations, detachment and stick-slip transitions, frictionless impacts, impacts with friction, and the Corner law of contact dynamics. In Part 2, the authors present numerous applications of the theories presented in Part 1. Each chapter in this part is devoted to a different law, theory, or model, such as discontinuous force laws, classical impact theory, Coulomb's friction law, and mechanical and mathematical models of impacts and friction. In addition, each chapter features several practical examples that allow engineers to observe the concepts described in action. Examples are drawn from a broad array of fields and range from hammering in gears as occurring in a synchronous generator to impacts and friction as observed in a child's woodpecker toy, from a demonstration of classical impact theory using an automobile gear box example, to Coulomb's friction law as applied to a turbine blade damper. Multibody Dynamics with Unilateral Contacts is an indispensable resource for mechanical engineers working on all types of multibody systems and the friction and vibration problems that can occur in them. It is also a valuable reference for researchers studying nonlinear dynamics. The only book devoted entirely to the theory and applications of onE of the most crucial aspects of multibody system design. This is the first book to focus exclusively on the theory and applications of multiple contact situations occurring in continuous joints and couplings in multibody systems. As such, it is a valuable resource for engineers working on mechanical systems with interrelated multiple parts. Multibody Dynamics with Unilateral Contacts * Provides a comprehensive examination of the laws and principles governing the dynamics of unilateral contacts in multibody mechanical and technical systems. * Presents the latest mathematical models and simulation techniques for describing the interactions of joints and couplings in multibody systems. * Describes practical applications for all the concepts covered. * Includes numerous examples drawn from a wide range of fascinating and enlightening real-world demonstrations, including everything from an airplane's landing gear to a child's toy.

Mass Gathering Medicine

William J. Brady,Mark R. Sochor,Paul E. Pepe,John C. Maino II,K. Sophia Dyer
Mass Gathering Medicine Book PDF

Author : William J. Brady,Mark R. Sochor,Paul E. Pepe,John C. Maino II,K. Sophia Dyer
Publisher : Cambridge University Press
Page : 435 pages
File Size : 51,6 Mb
Release : 2024-04-18
Category : Medical
ISBN : 9781009116251

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Mass Gathering Medicine by William J. Brady,Mark R. Sochor,Paul E. Pepe,John C. Maino II,K. Sophia Dyer Pdf

Mass medical deployments to large events, such as music festivals or sporting events, are increasing in number, size, and complexity. This textbook provides guidance and direction for rational, effective, and practical medical management of mass gathering events for medical leaders. This is the first authoritative text on mass event medicine, filling a much-needed gap in a large and important area of the specialty. An international group of contributors introduce the specialty and cover topics such as general deployment, staffing, equipment, and resources, moving on to more complex issues such as the business aspect of mass gathering medicine and the legal implications. There are also practical chapters on specific types of events and adverse events such as terrorism, severe weather, and civil disobedience. An invaluable text for all healthcare professionals planning for and attending mass events, particularly EMS professionals, large event planners and administrators, and law enforcement and security personnel.

IUTAM Symposium on Multiscale Problems in Multibody System Contacts

Peter Eberhard
IUTAM Symposium on Multiscale Problems in Multibody System Contacts Book PDF

Author : Peter Eberhard
Publisher : Springer Science & Business Media
Page : 339 pages
File Size : 46,6 Mb
Release : 2007-05-26
Category : Technology & Engineering
ISBN : 9781402059810

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IUTAM Symposium on Multiscale Problems in Multibody System Contacts by Peter Eberhard Pdf

The investigation of multiscale problems in multibody system contacts is an interesting and timely topic which has been the subject of intensive research. This IUTAM Symposium facilitated discussions between researchers active in the field. This proceedings volume summarizes contributions of many authors active in the field and gives insight in very different areas of this fascinating research. It reviews the state-of-the-art and identifies future hot topics.

Numerics of Unilateral Contacts and Friction

Christian Studer
Numerics of Unilateral Contacts and Friction Book PDF

Author : Christian Studer
Publisher : Springer Science & Business Media
Page : 182 pages
File Size : 51,9 Mb
Release : 2009-05-06
Category : Technology & Engineering
ISBN : 9783642011009

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Numerics of Unilateral Contacts and Friction by Christian Studer Pdf

Mechanics provides the link between mathematics and practical engineering app- cations. It is one of the oldest sciences, and many famous scientists have left and will leave their mark in this fascinating ?eld of research. Perhaps one of the most prominentscientists in mechanics was Sir Isaac Newton, who with his “laws of - tion” initiated the description of mechanical systems by differential equations. And still today, more than 300 years after Newton, this mathematical concept is more actual than ever. The rising computer power and the development of numerical solvers for diff- ential equations allowed engineersall over the world to predict the behavior of their physical systems fast and easy in an numerical way. And the trend to computational simulation methods is still further increasing, not only in mechanics, but practically in all branches of science. Numerical simulation will probablynot solve the world’s engineering problems, but it will help for a better understanding of the mechanisms of our models.

Electrical Contacts

Milenko Braunovic,Nikolai K. Myshkin,Valery V. Konchits
Electrical Contacts Book PDF

Author : Milenko Braunovic,Nikolai K. Myshkin,Valery V. Konchits
Publisher : CRC Press
Page : 672 pages
File Size : 40,6 Mb
Release : 2017-12-19
Category : Technology & Engineering
ISBN : 9780849391088

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Electrical Contacts by Milenko Braunovic,Nikolai K. Myshkin,Valery V. Konchits Pdf

Various factors affect the performance of electrical contacts, including tribological, mechanical, electrical, and materials aspects. Although these behaviors have been studied for many years, they are not widely used or understood in practice. Combining approaches used across the globe, Electrical Contacts: Fundamentals, Applications, and Technology integrates advances in research and development in the tribological, material, and analytical aspects of electrical contacts with new data on electrical current transfer at the micro- and nanoscales. Taking an application-oriented approach, the authors illustrate how material characteristics, tribological behavior, and loading impact the degradation of contacts, formation of intermetallics, and overall reliability and performance. Coverage is divided broadly into three sections, with the first focused on mechanics, tribology, materials, current and heat transfer, and basic reliability issues of electrical contacts. The next section explores applications, such as power connections, electronic connections, and sliding contacts, while the final section presents the diagnostic and monitoring techniques used to investigate and measure phenomena occurring at electrical contact interfaces. Numerous references to current literature reflect the fact that this book is the most comprehensive survey in the field. Explore an impressive collection of data, theory, and practical applications in Electrical Contacts: Fundamentals, Applications, and Technology, a critical tool for anyone investigating or designing electrical equipment with improved performance and reliability in mind.

Indira's Objective Agricultural Extension : MCQ's for Agricultural Competitive Examinations

Renu Arya,R.L. Arya,J. Kumar
Indira s Objective Agricultural Extension MCQ s for Agricultural Competitive Examinations Book PDF

Author : Renu Arya,R.L. Arya,J. Kumar
Publisher : Scientific Publishers
Page : 469 pages
File Size : 50,8 Mb
Release : 2017-10-01
Category : Business & Economics
ISBN : 9789387869691

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Indira's Objective Agricultural Extension : MCQ's for Agricultural Competitive Examinations by Renu Arya,R.L. Arya,J. Kumar Pdf

The competitive examinations have become a routine procedure of recruitment and admissions for higher position and education. Now-a-days a large number of short/objective type questions appear in the examination. These questions call for quick answering for success within a specified short period of time. A sincere effort has been made by the authors to present them in most easy, short and understandable language for the benefit, students, farmers and those who are interested in agriculture and agricultural extension. “Indira’s Objective Agricultural Extension” for competitive exams in agricultural extension discipline contain 15 chapters covering all related discipline. The chapters included such as: Introduction, historical perspective in relation to agriculture and extension, extension principles, approaches and programming, extension education, teaching and methods, extension learning and evaluation, communication and communication technology, audio - visual aids, innovation, evaluation and adoption, participatory rural appraisal, rural development and panchayati raj, economic principle, sociology and social work, training manual, agricultural statistics and appendix. This book has given due importance and whole syllabus was covered as per UGC, ICAR and SAU’s programmes in relation to agriculture extension. Each chapters contains multiple choice questions and total about 9000 objective questions with multiple choice have been framed and arranged sequentially for the easy understanding of the students. Recent information and development in the field of agriculture extension have been incorporated in the text. This book is primarily intended to serve as a appearing in competitive examinations of undergraduate, post graduate and doctorate programmes in agricultural extension of various universities. Thus this book is based on the syllabus of student of agriculture stream, it may be useful not only to students but also teachers, researchers as well as extension workers. The chapters are chosen in view to cover the course contents of competitive examinations like IAS, IFS, ARS, PCS, Banking, SAU’s, UGC and to get admissions in various degree programmes of SAU’s and other universities. This book will fulfill the requirement of students of agriculture and agricultural extension stream for appearing in different competitive examinations.