Farming Systems in the Tropics


Book Description

Some general charscteristics of farming in a tropical environment; Shifting cultivation systems; Fallow systems; Ley systems; Systems with permanent upland cultivation; Systems with arable irrigation farming; Systems with perennial crops; Grazing systems; General tendences in the development of tropical farm systems.




Scientific American


Book Description

Monthly magazine devoted to topics of general scientific interest.




High Speed Catamarans and Multihulls


Book Description

High speed catamaran and multihull high speed marine vessel have become very popular in the last two decades. The catamaran has become the vessel of choice for the majority of high speed ferry operators worldwide. There have been significant advances in structural materials, and structural design has been combined with higher power density and fuel efficient engines to deliver ferries of increasing size. The multihull has proven itself to be a suitable configuration for active power projection across oceans as well as for coastal patrol and protection, operating at high speedd for insertion or retrieval with a low energy capability. At present there is no easily accessible material covering the combination of hydrodynamics, aerodynamics, and design issues including structures, powering and propulsion for these vehicles. Coverage in High Speed Catamarans and Multihulls includes an introduction to the history, evolution, and development of catamarans, followed by a theoretical calculation of wave resistance in shallow and deep water, as well as the drag components of the multihull. A discussion of vessel concept design describing design characteristics, empirical regression for determination of principal dimensions in preliminary design, general arrangement, and methods is also included. The book concludes with a discussion of experimental future vehicles currently in development including the small waterplane twin hull vessels, wave piercing catamarans, planing catamarans, tunnel planing catamarans and other multihull vessels.




Health Care Antitrust


Book Description

Antitrust laws touch upon a wide range of conduct and business relationships in the delivery of health care services, and the issues that should be of concern to health care organizations are described. Health Care Antitrust provides practical overviews of the principal legal issues relating to health care antitrust, as well as a general understanding of antitrust analysis as applied to contractual relationships and business strategies that present antitrust risks in a managed care environment.




Field Guide to Trains


Book Description

The ultimate guide for train lovers, Field Guide to Trains is fully loaded with pictures and fun facts on all the machines that ride the rails




The Locomotives that Baldwin Built


Book Description

History being forged is what author Westing brings you in every phase of Baldwin progress. Here are more than 300 photographs, many never before printed, linked with the long out of print "History of the Baldwin Locomotive Works - 1831 to 1923," to which Westing gives colorful meaning as he brings the story up through the last days of steam to the Engine 76150, the final and highest serial number. --Publisher.




Photography and the Art of Chance


Book Description

As anyone who has wielded a camera knows, photography has a unique relationship to chance. It also represents a struggle to reconcile aesthetic aspiration with a mechanical process. Robin Kelsey reveals how daring innovators expanded the aesthetic limits of photography in order to create art for a modern world.




The Railway Engineer


Book Description




The interurban era


Book Description

The interurban era




Fatigue in Railway Infrastructure


Book Description

Fatigue is a major issue affecting safety and quality of service in the railway industry. This book reviews key aspects of this important subject. It begins by providing an overview of the subject, discussing fatigue at the wheel-rail interface and in other aspects of infrastructure. It then considers fatigue in railway and tramway track, looking at causes of potential failure in such areas as rails and fixings as well as sleepers. It also reviews failure points in structures such as embankments and cuttings. The book analyses fatigue in railway bridges, looking in particular at masonry arch bridges as well as metal and concrete bridges. Two final chapters review safety and reliability issues affecting escalators and lifts.Fatigue in railway infrastructure is a helpful reference for those in the railway industry responsible for infrastructure maintenance as well as those researching this important subject. - Provides a concise review of fatigue in the railway infrastructure - Examines the causes of potential failure in rails, fixings and sleepers - Analyses fatigue in railway bridges including masonry arch, metal and concrete structures