Wire saw, with its ability to cut very thin wafers from large diameter crystalline ingots of semiconductor materials, has emerged as a leading technology for wafer production in semiconductor and photovoltaic industry. Nevertheless, the wire saw cutting process remains lacking a theoretical methodology and is not properly understood. The modern times compulsion of more accurate and efficient ma...

Correctly selecting a saw for a job is one of the most critical decisions a sawmiller has to make. Even after the selection is made, the saw must be set up and operated within certain specifications for balanced performance. An understanding of the interrelationship of raw materials, end products, machinery, and the sawing process itself is essential. Often sawmillers operate their saws with le...

In this work, we discuss and demonstrate the principle features of surface acoustic wave (SAW) aerosol generation, based on the properties of the fluid supply, the acoustic wave field and the acoustowetting phenomena. Furthermore, we demonstrate a compact SAW-based aerosol generator amenable to mass production fabricated using simple techniques including photolithography, computerized numerical...

introduction: today the consumption of animal protein has been allocated a special place in human nutrition. poultry cooperatives have an important role in protein production. given the significance of producing animal products and the capabilities that the poultry cooperatives possess in this regard as well as considering the macroeconomic policies of governments respecting developing the coop...

an experiment was conducted to determine the appropriate methionine level in broiler breeder’s diet. the treatments consisted of 6 levels of methionine (0.2, 0.25, 0.3, 0.35, 0.4 and 0.45% diets), with 4 replicates of 7 hens each for a duration of 8 weeks and for ages of 28 to 35 weeks. diets contained similar levels of protein metabolizable energy. the levels of the other amino acids were take...