1-Cycloalkyl-2-propene-1-ones were synthesized by electrophilic addition of cycloalkanecarboxylic acid chlorides and its mono- dichloride-substituted derivatives to ethylene in the presence an AlCl3 catalyst at a temperature –10 ÷ –150C dichloroethane medium. The resulting vinyl ketones converted chlorination CCl4 –50C corresponding 1-cycloalkyl-2,3-dichloro-1-propanones, which form 1-R´-3-cycl...

Br-doping Li4Ti5O12 microspheres (LTOS) with micro-nano hierarchical structure are synthesized using cetyltrimethylammonium hydroxide-assisted hydrothermal and further calcination. The morphology of the obtained LTOS were characterized by X-ray diffraction, scanning electron microscopy photoelectron spectroscopy. It is found that spherical spinel-type microstructure do not change after appropri...

An in vitro study was conducted to evaluate the optimum roughage to concentrate ratio in complete rations using sorghum stover (SS) as a roughage source since it is a main feed resource for urban and peri-urban dairies. Eight complete rations were prepared with roughage (R) to concentrate (C) ratio of 100R:0C to 30R:70C. In vitro gas production (ml) at 24 h incubation, in vitro organic matter d...

Fifty isolates capable of producing phytase were isolated from various soil samples. Out of fifty isolates five isolates showed maximum phytase activity. P6 isolate was selected for further study P6 isolate was biochemically characterized as Pseudomonas spp. The culture conditions were optimized for maximum enzyme production. The best carbon and nitrogen sources for maximum phytase production w...

Variability in modern digital integrated circuits is emerging as an important area of research as it can cause profound impacts on chip performance and power consumption. We found that memory power consumption in a mainstream Atom-based computer can be as much as 18.5% of the total system power. We investigated the power consumption of DDR3 SDRAM DIMMs, finding that power usage in memory is hea...

A physical picture and quantitative two-dimensional electromagnetic modeling of mesospheric electric field transients produced by cloud-to-ground (CG) lightning discharges with short duration currents (<0.5 ms) are presented. The range of applicability of existing quasi-electrostatic models of sprites and the physical conditions under which relatively weak CG lightning discharges (thundercloud ...

A bacterium, isolated from rabbit’s waste and identified as Cellulomonas sp., had cellulase and thermostable α-amylase activity when grown on wheat bran. Maximum activity of thermostable α-amylase was obtained by adding 3% soluble starch. However, soybean oil (1 ml l) could increase the production of α-amylase and cellulase in wheat bran. The α-amylase was characterized by making a demonstratio...