Economic performance. Costs. Operations. Power. Equipment selection. Laboratory exercises.

The advent of modern agribusiness irrevocably changed the patterns of life and labor on the American family farm. In Entitled to Power, Katherine Jellison examines midwestern farm women's unexpected response to new labor-saving devices. Federal farm policy at mid-century treated farm women as consumers, not producers. New technologies, as promoted by agricultural extension agents and by home appliance manufacturers, were expected to create separate spheres of work in the field and in the house. These innovations, however, enabled women to work as operators of farm machinery or independently in the rural community. Jellison finds that many women preferred their productive roles on and off the farm to the domestic ideal emphasized by contemporary prescriptive literature. A variety of visual images of farm women from advertisements and agricultural publications serve to contrast the publicized view of these women with the roles that they chose for themselves. The letters, interviews, and memoirs assembled by Jellison reclaim the many contributions women made to modernizing farm life. Originally published in 1993. A UNC Press Enduring Edition -- UNC Press Enduring Editions use the latest in digital technology to make available again books from our distinguished backlist that were previously out of print. These editions are published unaltered from the original, and are presented in affordable paperback formats, bringing readers both historical and cultural value.

There are a number of books in the market about wind energy, turbine controllers, modelling and different aspects of integration of Wind Farm Power Plants ( WPP) to grids. But none of these books meets the expectations of design and field engineers/technicians to address directly the setting and design philosophy of different Intelligent Electronic Devices (IED) of WPP networks. This book provides practical applications of numerical relays for protection and control of different parts of onshore & offshore WPP network namely wind turbine generator, collector feeder and EHV interconnection transmission line to grid. In addition required changes to existing special protection system (SPS) and run-back scheme by adding a new WPP are discussed. The topology and characteristics of WPP networks are different from convectional one for both onshore and offshore WPP. In addition the fault current contribution from wind farm generators are low (1.1-1.2 pu). These causes significant challenge for setting and design of IEDs of WPP in order to meet the common industry practice requirement with respect to reliability, sensitivity, stability, security and grading coordination. The author believes that this book may be unique with respect to addressing these challenges and provision of the mitigation techniques to rectify the deficiencies of existing industry practice which otherwise have not been discussed for real systems in any other book. The content of this book have been successfully applied in the field for various WPPs projects and consequently can be used as a practical guideline for implementation for future projects. The content of the book covers Principal of Operation of WPP , Modelling of different com ponents of WPP, Short Circuit current and voltage characteristics of different type of wind turbine generators, Setting and Design of Protection systems of WPP Network , Design of Control systems of WPP, Lightening and Overvoltage Protection of WPP and Analysis of Disturbance on the WPP networks

The latest, extensively updated edition of Farm Power and Machinery Management continues the tradition of providing students, farmers, farm operators, and farm managers with comprehensive information on how to properly manage and optimize the use of mechanized equipment to reduce costs and maximize profits. This full-featured text analyzes the factors that comprise machinery management, explains the functions of the various machines and mechanisms as they affect economic operation, and offers contemporary approaches and procedures for making management decisions. The authoritative coverage of current management principles and the machinery-operating details make this text an outstanding choice for courses in agricultural education, agricultural mechanization, agricultural business, and agricultural engineering. An understanding of agricultural practices, college algebra, and trigonometry are adequate preparation for using this text. Abundant figures, photographs, and charts, along with problems and laboratory exercises, reinforce the applicability of significant concepts, thereby empowering readers to become successful farm machinery managers and operators. New or updated features and coverage in the Eleventh Edition . . . • photos of tractors, implements, and special crop machines • IRS policy related to farm machinery • expanded list of timeliness factors • instrumentation available to farm machines • tractor test results • required diesel engine emission control • constantly variable transmission (CVT) • tire data and oil specifications • custom, rental, and estimated costs for farm machinery operations • remote sensing of field conditions • farm safety data • number of machines on US farms • US crop areas and values