in current work, cds/black carbon nanocomposites were successfully synthesized with the aid of chestnut and cadmium nitrate as the starting reagents. besides, the effects of preparation parameters such as reaction time, and precursor concentration on the morphology of products and removal of heavy metals (hg+2, pb+2) were studied by scanning electron microscopy images and batch adsorption mode....

In the nomenclature of functional composite materials based on modified thermoplastics, a special place belongs to tribotechnical and protective composites used in various branches mechanical engineering, production non-ferrous metal products by injection molding, tribosystems operated automotive units, technological equipment mining. Taking into account variety structural design metal-polymer ...

the methods, the technology, the production patterns, the equipment, the capacity of the domestic infrastructure of each country, the mechanism of market capacity, market chains, releasing and distribution channels of agricultural and food product, purchasing patterns, and food consuming of consumers affect on the wastes of food products. regardless of the level of economic and social developme...

BACKGROUND Incense and joss stick are generally used in the world. Most products were made in small household factories. There are many environmental and occupational hazards in these factories. OBJECTIVE To evaluate the workplace environmental and occupational hazards in small household incense and joss stick factories in Roi-Et, Thailand. METHODS Nine small household factories in rural ar...

Today seafood plays a significant role in feeding people worldwide. Identification nutritional value of these products over other protein intake is increasing day by day. In parallel wif the increase in fish consumption, assessment of hygiene and health of these products is important. In this study, Heavy metals (Pb, Cr, and Cd) were investigated in white fish (Rutilus frissi kutum) from th...

surgical instruments, on bandaging and on many other aspects of surgery in general and surgery of the head and neck area in particular. It is hoped however that the present paper will stimulate interest and further examination of the empiric maturity of Hindu surgery more than fifteen centuries ago.