The word "permaculture" was coined and popularized in the mid 70's by David Holmgren, a young Australian ecologist, and his associate / professor, Bill Mollison. It is a contraction of "permanent agriculture" or "permanent culture." Permaculture is about designing ecological human habitats and food production systems. It is a land use and community building movement which striv...(展开全部)

The book that started it all, this revised edition of a classic weaves together philosophies of land-use, hands-on techniques of soil, agricultural, and livestock management, earth-friendly irrigation, and more, to form a very clear and inspiring picture of how sustainable agriculture not only can but must be made to work. Simple line illustrations throughout.

The word "permaculture" was coined and popularized in the mid 70's by David Holmgren, a young Australian ecologist, and his associate / professor, Bill Mollison. It is a contraction of "permanent agriculture" or "permanent culture." Permaculture is about designing ecological human habitats and food production systems. It is a land use and community building movement which striv...(展开全部)

The book that started it all, this revised edition of a classic weaves together philosophies of land-use, hands-on techniques of soil, agricultural, and livestock management, earth-friendly irrigation, and more, to form a very clear and inspiring picture of how sustainable agriculture not only can but must be made to work. Simple line illustrations throughout.

本书为公版书，为不受著作权法限制的作家、艺术家及其它人士发布的作品，供广大读者阅读交流。汇聚授权电子版权。

Sepp Holzer farms steep mountainsides in Austria 1,500 meters above sea level. His farm is an intricate network of terraces, raised beds, ponds, waterways and tracks, well covered with productive fruit trees and other vegetation, with the farmhouse neatly nestling amongst them. This is in dramatic contrast to his neighbors' spruce monocultures. In this book, Holzer shares the s...(展开全部)

For junior/senior-level electricity and magnetism courses. This book is known for its clear, concise, and accessible coverage of standard topics in a logical and pedagogically sound order. The highly polished Fourth Edition features a clear, accessible treatment of the fundamentals of electromagnetic theory, providing a sound platform for the exploration of related applications...(展开全部)

Some books on algorithms are rigorous but incomplete; others cover masses of material but lack rigor. Introduction to Algorithms uniquely combines rigor and comprehensiveness. The book covers a broad range of algorithms in depth, yet makes their design and analysis accessible to all levels of readers. Each chapter is relatively self-contained and can be used as a unit of study....(展开全部)

Introduction to Logic is clear and concise, uses interesting examples (many philosophical in nature), and has easy-to-use proof methods. Its key features, retained in this Third Edition, include: • simpler ways to test arguments, including an innovative proof method and the star test for syllogisms; • a wide scope of materials, suiting it for introductory or intermediate course...(展开全部)

Dimitri P. Bertsekas，美国工程院院士，IEEE会士。1971年获MIT电子工程博士学位。长期在MIT执教，曾获得2001年度美国控制协会 J. Ragazzini 教育奖。研究领域涉及优化、控制、大规模计算、数据通信网络等，许多研究具有开创性贡献。著有 Nonlinear Programming 等十余部教材和专著，其中许多被MIT等名校用作研究生或本科生教材。 John N. Tsitsiklis，美国工程院院士，IEEE会士，MIT教授。分别于1980年、1981年、1984年在MIT获得学士、硕士、博士学位。已发表学术论文上百篇。