نتایج جستجو برای: زاگرس و lnrf
تعداد نتایج: 760650 فیلتر نتایج به سال:
the main purpose of this study is landslide hazard assessment the ziarat watershed (golestan province) using information value and lnrf models within geographic information. at first stage, a landslide inventory map was prepared in the study area using earlier reports and aerial photographs, and a total of 50 landslides was mapped and out of which 35 (70%) were randomly selected for building la...
زمینلغزش یکی از مهمترین عوامل فرسایش خاک و بلای طبیعی است که سالانه خسارتهای جانی و مالی فراوانی به کشور وارد میکند. از این رو امروزه در بررسی ناپایداری دامنهها به شاخصهای ریختزمینساخت (مورفوتکتونیک) و مدلهای پهنهبندی خطر زمینلغزشها توجه میشود. هدف از این بررسی پهنهبندی خطر زمین لغزش در حوضه آبخیز سد چراغ ویس کردستان با استفاده از مدل IRAT و LNRF و مقایسهی تطبیقی آنها با به...
Seasonal variation in physico-chemical properties and zooplankton biomass in Greater Zab River -Iraq
صخلملا Seasonal variation of zooplankton biomass has been carried out at two selected sites on Greater Zab River. Monthly samples of water were collected during period from January to December 2008. Some physico-chemical properties of water were studied including water temperature (from 8 to 30.5 C), hydrogen ion concentration (from 6.3 to 8), EC (from 255 to 821 μs.cm), turbidity (1085 NTU), d...
خلا صلا ـ ة : عون نم يفيكتلا ةانقلا ردقم ءادلأ اًضرع ثحبلا اذه مدقي LMS ةيئاضفلا ةرفشملا تاعومجملا مظن يف نييئاوه مدختست يتلا ةينمزلا لإل اسر ل لابقتسلال اًدحاو اًيئاوهو . و ةانق يه ةمدختسملا ةيكلسلالا ةانقلا Rayleigh ءاضوضلا دوجوب ىسواجلا (Gaussian) يمجتلا جارخلاا يف يع . و حضوت ثحبلا جئاتن إ دحاو لماعم يذ ةانق ردقم مادختساب زاحنم ريغ ريدقت ىلع لوصحلا ةيناكم ) يراسم نم لكل لإا ةراش .( و وحن ةيف...
In this work we study the effect of some electrical prosperities on synthetic rubber reinforced with carbon black diluted in heptanes with concentrations from 0.2% gm/mole to 2.0% gm/ mole in temperatures range (100, 150, 200, 250, 300) C associated with amount weight of black carbon 5wt% added to the diluted rubber. The results of electrical properties measurement of Buna rubber reinforced wit...
Landslides are dangerous events that threaten both human life and property. This research presents a case study of Kaghan valley catchment, which is an area frequent landslide activity. We aim to present comparison between the bivariate Landslide Numerical Risk Factor (LNRF), Statistical Index (SI) Information Value (InfV) statistical models evaluate susceptibility. A total 1556 landslides were...
ایران بهدلیل ویژگیهای طبیعی و مورفولوژی خود در معرض بسیاری از مخاطرات طبیعی قرار گرفته است. حرکات تودهای و ناپایداری دامنهای، مخاطرات مهمی برای فعالیتهای انسانیاند که اغلب سبب از دست رفتن منابع اقتصادی و خسارت دیدن اموال و تأسیسات میشوند. این مسائل لزوم پهنهبندی خطر حرکات تودهای را بهعنوان اولین مرحلة مدیریت صحیح محیطی این پدیده روشن میکند. هدف این پژوهش، پهنهبندی خطر وقوع حرکات تود...
In this paper, utilization of clustering algorithms for data fusion in decision level is proposed. The results of automatic isolated word recognition, which are derived from speech spectrograph and Linear Predictive Coding (LPC) analysis, are combined with each other by using fuzzy clustering algorithms, especially fuzzy k-means and fuzzy vector quantization. Experimental results show that the ...
Three strains of facultatively anaerobic thermotolerant and moderately halophilic bacteria were isolated from two Jordanian hot spring locations. The novel Bacillus strains were short rods, Gram-positive, motile and spore formers. The strains were capable of anaerobic (but not aerobic) growth at 63C, moderately halophilic, able to grow at NaCl concentration range of 12 15 % and at temperatures ...
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