نتایج جستجو برای: source of need production
تعداد نتایج: 21258531 فیلتر نتایج به سال:
production of lysine by corynebacterium glutamicum (ptcc 1532) from different agricultural by-products (molasses and pulpy waste date) was compared to glucose as raw materials. for this purpose, ammonium sulphate was selected as a constant nitrogen source. the effect of different nitrogen sources was also investigated with glucose as a constant carbon source. the production of l-lysine was exam...
Spirulina microalgae are a rich source of protein and valuable biological compounds. One of the most important Spirulina microalgae pigments is phycocyanin. Phycocyanin is widely used in industries as a natural blue pigment and it’s also an effective antioxidant. In order to improve phycocyanin production as well as Spirulina growth, by autotrophic cultivation considering that autotrophic culti...
conclusions our present study shows that sugar beet molasses is a source of plp and l-ser; and hence, suggests the general application of the approach to produce l-trp more economically. results consequently, the potassium phosphate buffer system was considered as the suitably buffered reaction medium. the concentration of l-trp produced in reaction medium was 0.3 mm and 0.12 mm for glucose and...
ethanol is a clean and renewable energy source. the necessity of ethanol usage, instead of fossil fuels or mixed with them, in order to reduce environmental pollution resulted in increase of ethanol production from 50 million m-3 in 2007 to 85 million m-3 in 2012. the present study aimed to compare the cost of bio-ethanol production from sugar beet with other agricultural crops, and also econ...
Background and Aim: In order to comprehension of interactive content and content production standards, and also users interaction with LMSs, and their behavior in dealing with information, the aim of this paper is to examine the users interaction information provided in the eFront application, an open source Learning Management System, by emphasizing SCORM standard. Method: The method that used...
A toolbox for simulation of the cardiovascular system has been constructed for use in Matlab Simulink (The MathWorks Inc.). The toolbox contains basic elements such as vessel segments, cardiac chambers, valves and shunts that can be graphically arranged and connected to directly simulate the circulation with the desired level of detail. The toolbox is based on the SimPower toolbox to allow simp...
due to successes of fingerprinting method in producing rapid and low-cost information of sediment sources, in this research this method was used in three sub-cathments of chasht-khoran basin in semnan province: amrovan, atari and ali-abad. samples below 63 μm were separated and 15 fingerprinting propertis was measured. in the first stage comparison of means and differentiation analysis were use...
Abstract Introduction: Teenagers (especially girls) who are going through puberty are among vulnerable populations whose sexual needs receive little attention. Objective: This study aimed to determine educational needs of 11-14 year old girls on sexual health in Dezful. Methods: This cross-sectional study was conducted on 810 middle school girls aging 11 to 14 in Dezful city in 2012....
The dramatic changes and volatility cow-calf production system input costs and calf values have many producers wondering about the value of heterosis in today’s beef industry pricing structure. Many producers are seeking ways to improve cow-calf production efficiency and profitability. Profitability may be enhanced by increasing the volume of production (i.e. the pounds of calves you market) an...
نمودار تعداد نتایج جستجو در هر سال
با کلیک روی نمودار نتایج را به سال انتشار فیلتر کنید