نتایج جستجو برای: chloralkali plant
تعداد نتایج: 395087 فیلتر نتایج به سال:
امروزه راکتورهای بستر سیال بطور وسیع در تولید پلی الفینها اعم از همو پلیمر و کو پلیمر مورد استفاده قرار می گیرند. تولید پلی اتیلن سبک خطی به وسیله کاتالیست زیگلر- ناتا با دو راکتور بستر سیال سری از آخرین تکنولوژیها از این دست می باشد که با توجه به وجود دو راکتور سری قابلیت تولید طیف وسیعی از گریدها ی مختلف پلی اتیلن از جمله گریدهای دو قله ای را دارد. در این کار دو راکتور بطور سری مدل می شوند. ت...
cancer is still one of the major causes of mortality in both developing and developed countries. at this time, in spite of intensive interventions, a large number of patients have poor prognosis. therefore, the effort for finding new anticancer agents with better efficacy and lesser side effects has continued. according to the traditional recommendations and experimental studies, numerous medic...
gmelinoides fasciatus (stebbing, 1899) is a baikal endemic amphipod that has recently become widespread in eurasia. this species accidentally entered the cooling reservoir of the belovo power plant and became successfully naturalised there. this study describes the peculiarities of g. fasciatus distribution in reservoir sites with different thermal regimes and analyses the environmental factors...
چکیده ندارد.
background: application of plant extracts as mosquito control strategy was practiced from centuries. these are easily available, non-toxic, biodegradable and exhibit broad-spectrum target specific activities against larval stages of mosquitoes. method: different potential parts of locally grown plants, seeds of nutmeg ( myristica fragrans ), peel of musambi ( citrus sinensis ), leaves of babuna...
conclusions extracts of the consolida orientalis l., ferula assa-foetida l., coronilla varia l. could be considered as potential sources of anticancer compounds but further studies are necessary for isolation and identification of biologically active substances. results result from the performed assay showed that ethanolic extract of consolida orientalis l., ferula assa-foetida l., coronilla va...
the study was carried out to investigate the effective soil and topographic features on distribution of plant types in sanib taftan watershed in sistan-and-balouchestan province, iran. initially, land units map was specified by combining three maps of slope, aspect and altitude. five types including artemisia santolina- hammada salicornica, artemisia sieberi- amygdalus lycioides, artemisia lehm...
drought is still limited in most crops is produced. morphological and physiological knowledge to improve drought resistance under drought conditions created problems important is the fact each of these genetic relationships and processes associated with the exact amount of important plant and grain yield is unknown. the other hand, heritability of grain yield under water is reduced. improve the...
phytoremediation is an emerging green technology that uses plants and their associated microbes to remediate different environments contaminated with various pollutants. phytoremediation, as an effective soil remediation technology, has gained popularity in the past ten years both in developed and developing countries. the main goal of the current article is to improve the understanding of phyt...
background: there are several plant extractions which are being used for mosquito control. the aim of this study was to evaluate the efficacy of olea vera, linum usitatissimum and piper nigera against anopheles stephensi and aedes aegypti under laboratory conditions. methods: these tests were carried out using who recommended bioassay method for adult mosquitoes. results: the extracts from blac...
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