نتایج جستجو برای: microbial properties
تعداد نتایج: 972801 فیلتر نتایج به سال:
Today, the use of enzymes and antibacterial protein fibers is greatly favored by researchers to protect textile against microbial attacks, spots, discoloration and to increase shelf life of silk carpets in museums. This study investigates the effect of protease and nanosilver on silk yarn. Silk yarn with 140 Tex as a carpet pile treated with protease and nanosilver in different conditions...
اگرچه مدلهای متعددی برای بارش-رواناب توسط هیدرولوژیستها توسعه داده شدهاند، با این وجود روشهای هیدروگراف واحد در بسیاری از حوضهها که در آنجا دادههای هیدرولوژیکی ثبت شده کافی جهت استفاده مدلهای توزیعی بارش-رواناب وجود ندارد هنوز یک ابزار مفید برای تخمین سیلاب میباشد. هدف از مقاله حاضر استخراج توابع پاسخ پالس واحد رواناب سریع و آهسته جریان آبراههای به روش تحلیلی با استفاده از یک مدل مفهوم...
*Correspondence: [email protected] 1School of Mathematics and Physics, University of Science and Technology Beijing, Beijing, 100083, P.R. China Full list of author information is available at the end of the article Abstract In this paper, based on the related theories of microbial continuous culture, fermentation dynamics, and microbial flocculant, a class of dynamic models which describe...
The improved methods to analyze DNA or RNA from soil enable us to study microbial diversity and functions in soil which have never been revealed by conventional culture methods. Using one of such metagenomic approaches, polymerase chain reaction-denaturing gradient gel electrophoresis (PCR-DGGE), we succeeded in monitoring the change of microbial diversity in the soil treated with a chemicals o...
The aim of this study was to investigate the effect of an ectomycorrhizal fungus (Tuber indicum) on the diversity of microbial communities associated with an indigenous tree, Pinus armandii, and the microbial communities in the surrounding ectomycorhizosphere soil. High-throughput sequencing was used to analyze the richness of microbial communities in the roots or rhizosphere of treatments with...
Microbiology often focuses on the growth properties or physiological capabilities of microbes. However, most microbes in the natural environment are not actively growing. As has been proposed for plants, microbial life strategies should consider stress tolerance as well as competitive relationships and physiological and biological disturbance (19). Reports studying microbial communities in olig...
zero tillage practices have a direct effect on soil microbial communities modifying soil productivity and sustainability. the crop sequences used can change the aforementioned properties, too. in this study, we evaluated the effect of crop sequences under zero tillage management on soil biological and chemical properties including vertical distribution of soil organic carbon, soil basal respira...
The importance of soil organic carbon (SOC) under forests in the global carbon cycle depends on the stability of the soil carbon and its availability to soil microbial biomass. We investigated the effects of successive rotations of Chinese fir (Cunninghamia lanceolata (Lamb.) Hook) plantations on the stability of SOC and its availability to microbes by adopting the two-step hydrolysis with H2SO...
Soil microbial communities are responsible for a wide range of ecological processes and have an important economic impact in agriculture. Determining the metabolic processes performed by microbial communities is crucial for understanding and managing ecosystem properties. Metagenomic approaches allow the elucidation of the main metabolic processes that determine the performance of microbial com...
in this investigation the effect of external field on the electron density of nanostructures of cds, cdse, cdte, gaas and polymeric structure of three, four, five and six units of cds as a kind of nanosolar cells has been studied theoretically. as modeling this system in nanodimension, molecular structures has used. specific properties of molecular structures permit us to consider different sym...
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