Author : Alf Breig
Category : Medical
Publisher : Springer Science & Business Media
ISBN : 9783662224106
Type book : PDF & Epub
Page book : 84

In this book on the optimal treatment of the injured spinal cord we present the reasons why we consider it necessary to handle trauma tized medullary tissue in accordance with the classical biological principles of wound healing in general, namely by long-term, ten sion-free immobilization of the spinal cord. Today, such immobili zation for this purpose can only be achieved by surgical secure ment of slight dorsiflexion of the cervical spine. Traumatically compressed medullary tissue is invariably attenu ated and weakened. On application of skull traction, the weakened section of the compressed cervical cord is the part that is most overstretched. This inevitably results in increased neurological def icit. On scrutiny of the clinical records of 100 tetraplegic patients treated by skull traction at the National Spinal Injuries Centre at the Stoke Mandeville Hospital, Aylesbury, England, from 1971 to 1982, we found that therapeutic skull traction had been followed by an immediate increase in neurological deficit in 12% of the patients - a relatively high figure for the type of case in which beneficial effects oftraction were habitually anticipated. Moreover, in studies on cadavers, artificial defects in fresh human cervical cord in situ showed typical deformation following application of traction, confirming the basic deleterious effects of therapeutic skull traction on the injured cervical cord.

Author : Justin Mares
Category : Business & Economics
Publisher : S Curve Publishing
ISBN : 9780976339601
Type book : PDF & Epub
Page book : 258

Most startups end in failure. Almost every failed startup has a product. What failed startups don't have are enough customers. Traction Book changes that. We provide startup founders and employees with the framework successful companies use to get traction. It helps you determine which marketing channel will be your key to growth. "If you can get even a single distribution channel to work, you have a great business." -- Peter Thiel, billionare PayPal founder The number one traction mistake founders and employees make is not dedicating as much time to traction as they do to developing a product. This shortsighted approach has startups trying random tactics -- some ads, a blog post or two -- in an unstructured way that will likely fail. We developed our traction framework called Bullseye with the help of the founders behind several of the biggest companies and organizations in the world like Jimmy Wales (Wikipedia), Alexis Ohanian (Reddit), Paul English (Kayak.com), Alex Pachikov (Evernote) and more. We interviewed over forty successful founders and researched countless more traction stories -- pulling out the repeatable tactics and strategies they used to get traction. "Many entrepreneurs who build great products simply don't have a good distribution strategy." -- Mark Andreessen, venture capitalist Traction will show you how some of the biggest internet companies have grown, and give you the same tools and framework to get traction.

Author : International Court of Justice
Category : Belgium
Publisher :
ISBN : UOM:39015023071494
Type book : PDF & Epub
Page book : 866

Author : International Court of Justice
Category : Belgium
Publisher :
ISBN : UOM:39015030709433
Type book : PDF & Epub
Page book : 482

Author : J. Upadhyay
Category : Technology & Engineering
Publisher : Allied Publishers
ISBN : 9788177640052
Type book : PDF & Epub
Page book : 204

Electric Traction and Utilisation of Electrical Energy, with the former constituting approximately two thirds of the course, is an elective subject prescribed in electrical engineering syllabus of most engineering colleges. While there is a growing demand for making this subject compulsory, most students complain about non-availability of books dealing with all elements of electric traction featuring in the syllabus. To bridge this gap and present the subject in a lucid manner, this book was conceived by the authors with the following broad objectives: (i) To present electric traction as a complete system. (ii) To combine knowledge of fundamentals with an eye on practical orientation. (iii) To give a glimpse of the present state-of-the-art. The books currently available on the subject mostly deal elaborately with train mechanics, traction motor and its control gears, but miss certain key aspects that are essential for appreciation of the subject as a system of transportation. The book has sixteen chapters dealing with different aspects of electric traction. The unique feature of this book is that it includes chapters dealing with such aspects as Linear Induction Motor Propulsion, Railway Signalling, Protection of Electric Locomotive Equipment and Circuits, Preventive/Corrective Maintenance and Application of Computers for Management of Electric Traction System. Illustrative worked Out examples and unsolved numerical exercises taken from question papers of different universities and competitive examinations are designed to impart sufficient clarity and grasp of the fundamentals. The practising engineer in the field, in most cases, pick up the subject in bits and pieces over a rather long time frame. A complete view of the entire subject in the beginning itself may generate better understanding leading to innovativeness and efficiency at work. The authors hope that the book will be helpful to graduate level students as well as practising engineers in the field. Suggestions for further improvements in subsequent editions will be most welcome.

Author : Donald Hays
Category : Science
Publisher : Springer Science & Business Media
ISBN : 9781475713701
Type book : PDF & Epub
Page book : 428

Author : Ibrahim, H.
Category :
Publisher : ILRI (aka ILCA and ILRAD)
ISBN : 9291460818
Type book : PDF & Epub
Page book : 140

Author : Andreas Steimel
Category : Electric railroads
Publisher : Oldenbourg Industrieverlag
ISBN : 3835631322
Type book : PDF & Epub
Page book : 356

This book conveys mechanical fundamentals of electric railway propulsion, which includes rail-bound guidance, transmission of traction effort from wheel to rail under the influence of non-constant levels of adhesion and the transmission of motor torque to a spring-mounted and thus sliding drive set.

Author : R.N. Yong
Category : Technology & Engineering
Publisher : Elsevier
ISBN : 9780444600486
Type book : PDF & Epub
Page book : 321

The fundamental problem in the study of vehicle mobility is the development of traction between the vehicle and the supporting terrain. The mechanics of energy transfer will essentially control the final performance of the surficial machine. Determining and predicting the capability of a particular piece of machinery to traverse successfully a specific piece of terrain is very complex, particularly as the characteristics and properties of different types of terrain cover vary considerably, as do the many types of vehicle and their running gear. The material that forms the basis of this book has been gathered over many years of study both in the laboratory and in the field. It studies vehicle traction mechanics from the viewpoint of the interaction between the vehicle and the ground surface. The types of machines covered include earth-moving, forestry, agricultural, and construction machines. In addition, the mechanisms involved in the development of traction and the working of the terrain through cultivation, construction and surface disturbances are examined. The book also addresses the problems of off-road mobility and terrain trafficability, especially from the terrain-support and terrain interaction points of view. It is the authors' aim that the book will provide the reader with the ability to both analyze and predict the traction capability of his proposed machinery, and also to anticipate the kinds of reactions that will occur in the ground and at the ground surface.

Author : Jerry Marlette
Category : Electric railroads
Publisher : Dog Ear Publishing
ISBN : 9781608448050
Type book : PDF & Epub
Page book : 364