background: cholesterol oxidase (cho) has various clinical and industrial applications. recently, microbial cho have received a great attention for their wide usage in medicine. here, taxonomic characterizations of isolated strain from soil, optimization of the conditions for cho production and biochemical characterizations of produced cho enzyme were described. finally, cho gene was cloned int...

We study stochastic optimization problems when the data is sparse, which is in a sense dual to current perspectives on high-dimensional statistical learning and optimization. We highlight both the difficulties—in terms of increased sample complexity that sparse data necessitates—and the potential benefits, in terms of allowing parallelism and asynchrony in the design of algorithms. Concretely, ...

The morphological optimization of Trichoderma harzianum was carried out using several surfactants to achieve increased cellulase production. Addition of the surfactants to the culture medium successfully modified the fungal morphology from an aggregated form to a dispersed form. Optimization of the fungal morphology increased cellulase activity up to 177%. The morphologically optimized conditio...

Multi-injector system is potential to improve thermal efficiency and NOx emission of diesel engine at the same time. In order optimize combustion Marine medium speed engine, with a multi-injector simulated analyzed by CFD software Converge. this research, two injectors are installed side cylinder head while central injector maintained. Various injection directions strategies fuel spray combusti...

The paper illustrates the design of a new mechanical system for propeller blades pitch calibration in medium power wind turbines. peculiarity this is its capacity adjusting through feedback control system, which allows turbine to capture maximum amount energy from wind. In work an axial drive was studied by means racks capable linearly all intrinsically synchronous way, with advantage over trad...