نتایج جستجو برای: solid bases
تعداد نتایج: 255442 فیلتر نتایج به سال:
Optimizing the database queries is one of hard research problems. Exhaustive search techniques like dynamic programming is suitable for queries with a few relations, but by increasing the number of relations in query, much use of memory and processing is needed, and the use of these methods is not suitable, so we have to use random and evolutionary methods. The use of evolutionary methods, beca...
Background: Physical access to health services is determined by the geographic location of the patient. This study aims to distribute the bases and hospitals of Mashhad City, Iran, and the extent of coverage of the bases in traffic accidents. Materials and Methods: This research is a descriptive cross-sectional and applied study. The study population for high-accident points includes 21142 mis...
Pretreatment of Switchgrass for Production of Glucose via Sulfonic Acid-Impregnated Activated Carbon
In the present research, activated carbon-supported sulfonic acid catalysts were synthesized and tested as pretreatment agents for conversion of switchgrass into glucose. The by reacting sulfuric acid, methanesulfonic p-toluenesulfonic with carbon. characterization suggested an increase in surface acidities, while area pore volumes decreased because sulfonation. Batch experiments performed 125 ...
Schiff bases of fatty acid hydrazides made from Oil recovered from spent bleaching earth (ORSBE) and Acid oil (AO)were prepared. These newly synthesized Schiff bases were characterized on the basis of FT-IR, elemental analysis and evaluated for biological performance. Schiff bases exhibited mild antibacterial activities against certain micro-organisms if compared with streptomycin used as stand...
a trend of significant increase in municipal solid waste generation has been recorded worldwide. this has been found due to over population growth rate, industrialization, urbanization and economic growth. consumerism speed has been found very high covering around more then 50% of total population since last decade due to higher economic growth, which has ultimately resulted in increased solid ...
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