The Four Terminal Conductor And The Thomson Bridge Classic Reprint
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The Four-Terminal Conductor and the Thomson Bridge (Classic Reprint)
Excerpt from The Four-Terminal Conductor and the Thomson Bridge In considering the four-terminal conductor it is the purpose of this paper to point out the conditions which must necessarily be fulfilled in order that the resistance be definite or both the resist ance and inductance be definite and to discuss some of the points to be observed in the design of low-resistance standards which are to carry large currents, especially if the current is alternating. In connection with the Thomson bridge we shall consider first the theory where the four-terminal conductors are linear, then discuss some of the ways in which the measurements have been made in the past, describe the way in which they are carried out at the Bureau of. Standards, and show that the method being used is equally applicable where the four-terminal conductors are not linear, and finally consider adjustments which should be made when using alternating current. About the Publisher Forgotten Books publishes hundreds of thousands of rare and classic books. Find more at www.forgottenbooks.com This book is a reproduction of an important historical work. Forgotten Books uses state-of-the-art technology to digitally reconstruct the work, preserving the original format whilst repairing imperfections present in the aged copy. In rare cases, an imperfection in the original, such as a blemish or missing page, may be replicated in our edition. We do, however, repair the vast majority of imperfections successfully; any imperfections that remain are intentionally left to preserve the state of such historical works.
The Geography of Transport Systems
Mobility is fundamental to economic and social activities such as commuting, manufacturing, or supplying energy. Each movement has an origin, a potential set of intermediate locations, a destination, and a nature which is linked with geographical attributes. Transport systems composed of infrastructures, modes and terminals are so embedded in the socio-economic life of individuals, institutions and corporations that they are often invisible to the consumer. This is paradoxical as the perceived invisibility of transportation is derived from its efficiency. Understanding how mobility is linked with geography is main the purpose of this book. The third edition of The Geography of Transport Systems has been revised and updated to provide an overview of the spatial aspects of transportation. This text provides greater discussion of security, energy, green logistics, as well as new and updated case studies, a revised content structure, and new figures. Each chapter covers a specific conceptual dimension including networks, modes, terminals, freight transportation, urban transportation and environmental impacts. A final chapter contains core methodologies linked with transport geography such as accessibility, spatial interactions, graph theory and Geographic Information Systems for transportation (GIS-T). This book provides a comprehensive and accessible introduction to the field, with a broad overview of its concepts, methods, and areas of application. The accompanying website for this text contains a useful additional material, including digital maps, PowerPoint slides, databases, and links to further reading and websites. The website can be accessed at: http://people.hofstra.edu/geotrans This text is an essential resource for undergraduates studying transport geography, as well as those interest in economic and urban geography, transport planning and engineering.
Groundbreaking
"To mark MND0́9s 60th anniversary in 2019, Groundbreaking: 60 Years of National Development in Singapore chronicles the story of Singapore0́9s national development from pre-independence to the present day. Led by a foreword by Minister for National Development Lawrence Wong and a preface by MND Permanent Secretary Ow Foong Pheng, the book draws on newspapers, interviews and photos to explore 200 years of urban planning in Singapore as well as the Ministry0́9s most significant milestones and achievements in shaping Singapore as a city and transforming the lives of citizens through key initiatives and policies. The book outlines how the Ministry and its agencies transformed Singapore in just six decades from squatters in slums to proud homeowners in modern housing estates; from modest shophouses to towering skyscrapers; from dirty, dusty streets to lush gardens and world-renowned skylines. With a pragmatic, can-do spirit, strong camaraderie and a sense of common purpose, the Ministry brought together the custodians of Singapore0́9s built environment0́4planners, developers, architects, policymakers and civil servants0́4to overcome the many challenges that have confronted Singapore in its journey from Third World to First. The Ministry and its agencies are the kampung that built a global city"--