Robert Earle Buchanan (1883-1973), 19th President of the Society of American Bacteriologists (later American Society for Microbiology), was one of the more important 20th century microbiologists. He was a dominant force in creating the field of bacterial systematics and made significant contributions to microbial physiology. He also numbered a number of influential textbooks. A reasonable concl...

In this study, we present the results of a comprehensive, landscape-scale remote sensing project at Santa Elena on Parris Island, South Carolina. Substantial occupation at the site extends for over 4000 years and has resulted in a complex array of features dating to different time periods. In addition, there is a 40-year history of archaeological research at the site that includes a large-scale...

The selection of soil development is generally guided by the need to treat a certain area site in shortest time and with least effort energy. In small household plots, grant carried out hand garden shovels without use mechanized or electromechanized means. Such blades have sharp metal extended tip wooden shaft. They are widely used due their relative cheapness, but they low productivity because...

Weed control automation appears to be a very promising technology based on the tremendous advances in computer processing, machine vision and robotics. Machine systems are size differences between crops weeds or regular structure of crop rows, allowing system recognize plants surrounding weeds. The paper provides description mounted for orienting row cultivator rows its displacement relative tr...

Picohydro Power Plant (PLTPH) is designed for water with a small flow, the design of this PLTPH does not require complicated construction output reaching several kilowatts. This uses materials that can be found easily and are widely available. The turbine made using sand shovel, reservoir used drum, DC generator, inverter circuit, battery other supporting tools. produces nominal power 450 watts...

Cropping systems like organic farming, selling products at a higher price and promoting environmental sustainability by reducing fertilizer and pesticides, can be more profitable than conventional systems. An economic evaluation of three cropping systems in a seven year period experiment was performed, using a common rotation (fallow-barley-vetch-durum wheat) in a semi-arid rainfed field of Spa...