in this study, aluminum (al) matrix reinforced with micro-particles (30 µm) and nano-particles (50 nm) boron carbide (b4c) were used to prepare al-2.5%wt., b4c nano-composite and micro-composite, respectively, using mechanical alloying method. the mixed powders were mechanically milled at 5, 10, 15 and 20 hrs. the xrd results indicated that the crystallite sizes of both the micro-composite and ...

Slurries of whey protein concentrate (WPC) or sodium caseinate (Na-CN) mixed with sucrose (36% T.S.) were subjected to microparticulation by a high shear homogenizer operated at 27,000 rpm for 2, 4, and 6 min to facilitate gel formation. After microparticulation treatment, the milk protein and sucrose slurries were evaporated at 85 degrees C for 60 min under a partial vacuum (20 to 45 mm of Hg)...

To prepare the samples for Transmission Electron Microscopy (TEM) imaging and Atomic Force Microscopy (AFM) measurements, as-grown carbon nanotubes were dispersed in isopropanol and sonicated using HD2200 homogenizer with a power of 20W for 5 minutes. To characterize the nanotubes by HRTEM, a droplet of the suspension was put on a Cu TEM grid with a lacey C film. Alternatively, we deposited a d...

Here we describe a method for preparing and culturing primary cells dissociated from Drosophila gastrula embryos. In brief, a large amount of staged embryos from young and healthy flies are collected, sterilized, and then physically dissociated into a single cell suspension using a glass homogenizer. After being plated on culture plates or chamber slides at an appropriate density in culture med...

Materials and Methods: Male SHRSP and Wistar-Kyoto rats as control were used mainly for this study . Some of the SHRSP were fed with a 50% white fish meal or 50% casein diet by weight from 35 days after birth. After sacrificing these rats at various ages, the thoracic aorta was isolated from each animal and adhering tissues were separated. Five or 6 rats were used for 1 experiment. These aortas...

It has been reported by Sutherland, Rail, and Menon (1) that particulate preparations from a number of tissues, including pigeon erythrocytes, are able to synthesize adenosine 3’) 5’-phosphate (cyclic 3’,5’-AMP) when they are incubated in the presence of adenosine triphosphate and Mgff. The name adenyl cyclase was proposed for the enzyme system catalyzing the synthesis. The adenyl cychse activi...

Seabirds are widely regarded as an invaluable bioindicator of environmental health. Matrices including eggs and feathers have been used non-lethal means to assess contaminant burdens. We developed a new approach for extraction polycyclic aromatic compounds (PACs) from seabird plasma serum based on automated microbead-beating homogenization extraction. Commercially available bovine were purposel...

The article presents the results of laboratory studies on ore flotation copper-molybdenum deposits in East Kazakhstan region using a combined reagent. It is required to use new beneficiation methods and reagents increase efficiency minerals improve processing finely disseminated ores. problem can be solved by combination different collectors. objective research recovery copper molybdenum during...

The use of melon processing in food production attracts the close attention scientists and public. This article presents technology formulation marmalades using products on various jelling agents. Marmalades were made agar-agar, pectin gelatin order to determine most suitable jelly-forming agent for from product melons. According results study, it was revealed that is possible get marmalade wit...