The synthesis of NiO nanoparticles was done by sol-gel method. Nickel Acetate Tetrahydrate ((CH3COO)2 –Ni·4H2O) was dissolved in ethanol with constant stirring to obtain a clear and light greenish sol. Oxalic acid solution was used to obtain a thick green gel, then dried in an oven to get dried gel and was then grinded into fine powders and calcined for different time periods to obtain nanocrys...

In this present work, The effect of input parameters viz. grinding wheel speed, work-piece speed, abrasive grain size, depth of cut, concentration of cutting fluid, and number of passes has been found on the surface roughness of cylindrical grinded AISI 4140 steel has been found. The other parameters like feed rate, diameter of work-piece, coolant flow rate, etc. are kept constant. Three levels...

One of the options for reducing harmful emissions in production heat energy is use biomass, including combination with industrial waste (for instance, coal and coke dust). Recent studies demonstrate that a mix biomass makes it possible to obtain bio-coal briquette better characteristics, which motivating factor search alternative sources from local agricultural waste. The aim this research stud...

the edible leafy vegetables contain nutritional ingredients that are necessary for human health and it is important that nutrients protection be monitored during processing and storage. the aim of this study was to study some organoleptic attributes of a very popular iranian meal named coco-sabzi, which was prepared with a mixture of edible grinded leafy vegetable pre-stored at different frozen...