What kinds of expertise and knowledge relate to electricity, and where is the space for alternative voices? How can the new roles for electricity in social and cultural life be acknowledged? How can we speak about ‘it’ in its own right while acknowledging that electricity is not one thing? This book re-describes electricity and its infrastructures using insights from anthropolo...(展开全部)

This is the first book which examines the nature and significance of a feminist critique in anthropology. It offers a clear introduction to, and balanced assessment of, the theoretical and practical issues raised by the development of a feminist anthropology. Henrietta Moore situates the development of a feminist approach in anthropology within the context of the discip...(展开全部)

This is the first book which examines the nature and significance of a feminist critique in anthropology. It offers a clear introduction to, and balanced assessment of, the theoretical and practical issues raised by the development of a feminist anthropology. Henrietta Moore situates the development of a feminist approach in anthropology within the context of the discipline, e...(展开全部)

This is the first book which examines the nature and significance of a feminist critique in anthropology. It offers a clear introduction to, and balanced assessment of, the theoretical and practical issues raised by the development of a feminist anthropology. Henrietta Moore situates the development of a feminist approach in anthropology within the context of the discipline, e...(展开全部)

Within a relatively short time, urban anthropology has emerged as one of the most vital fields of anthropology. During its formative period, however, it has lacked intellectual coherence. Exploring the Cityis a bold first attempt to provide just such a coherent and unified theoretical understanding of urbanism. Hannerz draws upon the urban perspectives of other disciplines as ...(展开全部)

This best-selling book employs a theoretical, practical, multidisciplinary approach to provide introductory users with a broad understanding of modern electric power. The scope of the book reflects the rapid changes that have occurred in power technology over the past few years–allowing the entrance of power electronics into every facet of industrial drives, and expanding the f...(展开全部)

在准备本书第6版时，我想将一些对电力系统有较大影响的新内容介绍给大家，其中有以下5部分内容。 第13章、12.23～12.26节介绍了双馈感应电机的原理与特性。该电机的调速可通过在定子加固定频率交流电，而在转子通入可变频率交流电来实现，故名为“双馈”。双馈电机原来用作变速电动机来驱动大型水泵等负载，现在，该电机在风力发电中作为双馈发电动机使用。由于风力发电的重要性，有必要在本书中介绍这种特殊的电机。 第21章、21.45～21.51节对PWM的相关内容作了重要的修改，增加了新的内容及图片。 第23章介绍了几种电动机调速的电子控制方法。23.31～23.40节特别介绍了直接转矩控制（DTC）方法，与应用PWM及矢量控制方法不用，DTC使用了砰砰控制法，其对速度及转矩的控制与其他方法不同，该章根据感应电机原理，对此做了直观的分析。 第24章、24...(展开全部)

在准备本书第6版时，我想将一些对电力系统有较大影响的新内容介绍给大家，其中有以下5部分内容。 第13章、12.23～12.26节介绍了双馈感应电机的原理与特性。该电机的调速可通过在定子加固定频率交流电，而在转子通入可变频率交流电来实现，故名为“双馈”。双馈电机原来用作变速电动机来驱动大型水泵等负载，现在，该电机在风力发电中作为双馈发电动机使用。由于风力发电的重要性，有必要在本书中介绍这种特殊的电机。 第21章、21.45～21.51节对PWM的相关内容作了重要的修改，增加了新的内容及图片。 第23章介绍了几种电动机调速的电子控制方法。23.31～23.40节特别介绍了直接转矩控制（DTC）方法，与应用PWM及矢量控制方法不用，DTC使用了砰砰控制法，其对速度及转矩的控制与其他方法不同，该章根据感应电机原理，对此做了直观的分析。 第24章、24...(展开全部)

For C++ Intermediate Programming courses. C++: Effective Object-Oriented Software Construction, Second Edition Is crafted to help students understand the C++ object-oriented paradigm in depth. It teaches to translate object concepts to practical solutions, no matter what software development environment encountered. This edition Is updated for the new ANSI C++ standard. The te...(展开全部)