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Background. Lactobacillus acidophilus not only improves the intestinal flora balance but also inhabits the growth of undesirable microorganisms in intestine, which is benefit to the health of humans and animals. Plackett-Burman and steepest ascent experiment are the rapid and concise ways of screening the main effective factors. This study is aimed to select the main influence factors and optimize...
The paper present results from use of 5S method. Maintaining a good market position is the key issue for companies. It depends on many factors, but mainly on the quality of products, its availability for the customers and the ability of adapting to variable surrounding conditions. The execution of the production tasks is directly connected with the organization of the company, especially with the...
A new hybrid inorganic-organic copolymer, aluminum chloride-poly(acrylamide-co-acrylic acid), was prepared using the free radical polymerization method and employed in this study. The hybrid copolymer was characterized by Fourier transform infrared spectroscopy (FTIR), scanning electron microscopy (SEM), and energy-dispersive x-ray spectroscopy (EDS). This hybrid copolymer was used in the flocculation...
The goal of solving relationships in the system „human – machine – environment“ is reaching the optimal functionality of the system at minimal costs so that well-being, health protection and safety of human at work may be maintained. In this article is introduced a simple model which can be utilised at optimisation of work position as well as workplace as a whole. The solution is proposed so that...
The aim of this work was to evaluate the capability of Phormidium valderianum BDU 140441 on biodegradation and decolorization of distillery spent wash. The effect of initial pH (6-10), temperature (24- 32ºC), and light intensity (20-54 W/m2) was studied using single factorial design and achieved a maximum decolorization of 74.5% with COD reduction of 83.48%. A 23 full factorial experimental central...
The objective of this study was to develop a model to assess economical and balanced feed rations for sport horses. It was based on nonparametric modelling with a combination of linear programming and a multiobjective optimization technique: weighted goal programming. The method incorporates multiple goals into optimization. The technical data presented the feed nutritional value (dry matter, metabolizable...
L-arabitol is used in the food and pharmaceutical industries. It can be secreted by genetically modified Saccharomyces cerevisiae carrying the genes responsible for pentose metabolism in yeast cells. The process of the biotransformation of L-arabinose to arabitol is highly dependent on culture conditions. The aim of this investigation was to use statistical response surface methodology (RSM) for optimization...
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