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451 items found (Showing 1 - 10)
  1.  
  2. Presents an overview of the use of wind energy around the world providing information on planning, purchasing, siting, and installing a wind system and the integration of wind power with solar photovoltaics  
  3. 01 មករា 1994 The type of windpump discussed in this book is known as a multi-blade direct drive windpump. 47 Pages, illustrations  
  4. 01 មករា 1977 This manual details the construction of the Savonius rotor. Included in the manual are a two-stage rotorsfor pumping water and a three-stage rotor designed to charge automobile batteries. 53 pages, illustrated  
  5. 01 មករា 2011 Pumps as Turbines: A user’s guideis a practical handbook for engineers and technicians involved in designing and installing small water-power schemes for isolated houses and communities. It concerns the use of standard pump units as a low-cost alternative to conventional turbines to provide...  
  6. 01 មករា 1977 This manual is intended to do two things: 1) to provide the details needed to make the Arusha windmill in areas for which this design or a variation of it may be appropriate. 2) to illustrate the feasibility of the development of machines which cost only 1/5 to 1/10 as much as roughly equivalent...  
  7. ធនធានសំខាន់ 16 មេសា 2013 Smallholder farmers and agricultural development workers are reporting changes in climate. For example, during the 2012 ECHO Agricultural Workshop in Asia, 63 attendees representing at least 25 agriculture and community development organizations from across Myanmar were polled about their...  
  8. ធនធានសំខាន់ 01 មករា 2010 For many years, conventional Western forestry methods have been applied, and exotic tree species promoted in Sahelian countries in order to combat desertification. Large and small projects were commissioned to curtail the assumed southward movement of the Sahara desert, but few made any lasting...  
  9. ធនធានសំខាន់ 01 មិថុនា 2010 Seeds naturally have a place in almost any endeavor having to do with agricultural development. Seeds of most food plants are small and, as such, are more easily transported and can be shipped longer distances than vegetative cuttings. For the farmer, seeds represent the promise of a continued...  
  10. ធនធានសំខាន់ 01 មករា 2010 Farming communities in the semi-arid tropical regions of Africa are becoming particularly vulnerable and face enormous challenges for their survival. Climate change, diminishing and unreliable rainfall, traditional mono culture cropping farming practices, high population growth, frequent famines...