نتایج جستجو برای: water distribution pattern

تعداد نتایج: 1429196  

حبیب‌خانی, پوران, ززولی, محمد علی, صفرپور قادی, مرجانه, ویسی, امیر,

Background and purpose: Heterotrophic plate count (HPC) is commonly used to assess the general microbiological quality of drinking water. HPC must be less than 500 colonies per milliliter in drinking water. The aim of this study was to compare the heterotrophic bacteria of bottled water and drinking water distribution system and their relationship with water quality parameters. Materials and m...

Journal: :تحقیقات آب و خاک ایران 0
آرش محمدبیگی دانشگاه تهران فرهاد میرزایی دانشگاه تهران نگین اشرف دانشگاه تهران

pulse irrigation is consisted of an irrigation phase and a resting or non-operative irrigation phase. water intermittent use causes that advance front with less volume water over continuous irrigation is completed, which it effect on the pattern of soil moisture. another important subject in trickle irrigation is water distribution in non- operative irrigation that called redistribution. amount...

Journal: :تحقیقات مهندسی کشاورزی 0
علی دیندارلو دانشجوی سابق کارشناسی ارشد علیرضا سپاسخواه استاد گروه آبیاری و زهکشی دانشکده کشاورزی، دانشگاه شیراز

solute transport processes are affected by soil pore water velocity distribution. pore size distribution, which can be used to infer pore water velocity distribution, can be estimated from a soil water retention curve (n). in this study, a solute breakthrough curve was simulated using soil hydraulic parameters in four different soils. to evaluate the proposed model, predictions were compared to...

Crown imperial scattered according to soil structure and organic matter in Zagros regions in Ilam. This plant has been performed an important role in the beautification of environment, tourist attraction and providing of plant essential oils which are used for the production of medicines. The current research was carried out to evaluation spatial distribution pattern of Fritillaria imperialis i...

Journal: :international journal of nano dimension 0
m. h. shojaeefard school of automotive engineering, iran university of science and technology, tehran, iran a. khalkhali school of automotive engineering, iran university of science and technology, tehran, iran s.h. khakshournia school of automotive engineering, iran university of science and technology, tehran, iran f. malmir school of automotive engineering, iran university of science and technology, tehran, iran

this paper investigates the effect of different methods of carbon nanotubes distribution in a thin matrix on static and dynamic behavior of the nanocomposite. five different symmetric patterns of distribution are considered, including four parabolic patterns and a linear one. for each pattern, the effective mechanical properties of the resultant nanocomposite are calculated using the rule of mi...

Journal: Geopersia 2016

The aim of this research was the geochemical assessment of the groundwater quality and the evaluation of the distribution pattern of fluoride concentration in water resources of the region and their connection with the prevalence of dental fluorosis occurrence in the study area. To achieve to this goal six sediment and 22 water samples were taken and analyzed. Fluoride and phosphorous concentra...

Journal: :Remote Sensing 2016
Chang Huang Yun Chen Shiqiang Zhang Linyi Li Kaifang Shi Rui Liu

Monitoring the dynamics of surface water using remotely sensed data generally requires both high spatial and high temporal resolutions. One effective and popular approach for achieving this is image fusion. This study adopts a widely accepted fusion model, the Enhanced Spatial and Temporal Adaptive Reflectance Fusion Model (ESTARFM), for blending the newly available coarse-resolution Suomi NPP-...

Journal: :American journal of botany 2010
Maurizio Mencuccini Jordi Martinez-Vilalta Josep Piñol Lasse Loepfe Mireia Burnat Xavier Alvarez Juan Camacho Debora Gil

UNLABELLED PREMISE OF THE STUDY Because of their limited length, xylem conduits need to connect to each other to maintain water transport from roots to leaves. Conduit spatial distribution in a cross section plays an important role in aiding this connectivity. While indices of conduit spatial distribution already exist, they are not well defined statistically. • METHODS We used point patte...

Presence-absence and abundance of each fish species in a river habitat depends on several factors and they prefer a specific range of each habitat factor. The present study was carried out to investigate habitat suitability index of Capoeta capoeta and the effect of habitat factors on its distribution and abundance in Roodbabol branch of the River Babolrood (Mazandaran Province). To do, fish sa...

پایان نامه :وزارت علوم، تحقیقات و فناوری - دانشگاه شهید باهنر کرمان - دانشکده کشاورزی 1387

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