نتایج جستجو برای: water supply networks

تعداد نتایج: 1102651  

ژورنال: Medical Laboratory Journal 2015
Ghazanfari, Z, , Karvar, M, , Pouryazdanpanah, N, ,

Abstract Background and objective: Bioindicators of drinking water are always influenced by physical and chemical factors such as turbidity and chlorine.  Considering the assessment of drinking water quality is based on residual chlorine, E.coli, heterotrophic bacteria and turbidity.  We aimed to evaluate the effect of pH, chlorine residual and turbidity on the microbial ...

Journal: :Mathematical Problems in Engineering 2022

In this paper, model construction of random matrix theory is carried out to analyze water leakage urban supply pipeline network, and a multivariate statistical network based on proposed. This paper presents three-level DMA, short-term demand prediction method use patterns, aiming solve the problem inaccurate caused by climate social factors. Correlation analysis factor main factors affecting da...

2014
Lianne McLeod Lalita Bharadwaj Cheryl Waldner

A cross-sectional study investigated risk factors associated with choices to drink bottled water and tap water in rural Saskatchewan. Of 7,500 anonymous postal questionnaires mailed out, 2,065 responses were analyzed using generalized linear mixed models. Those who reported a water advisory (p < 0.001) or living in the area for £10 years (p = 0.01) were more likely to choose bottled water. Thos...

Journal: :Water 2021

The bulk of water pipes experience major degradation and deterioration problems. This research aims at estimating the condition in Shattora Shaker Al-Bahery’s distribution networks, Egypt. developed models involve training Elman neural network (ENN) feed-forward (FFNN) coupled with particle swarm optimization (PSO), genetic algorithms (GA), sine cosine algorithm (SCA), teaching-learning-based (...

Journal: :تحقیقات اقتصاد و توسعه کشاورزی ایران 0
امید شریفی دانشجوی دکتری دانشگاه تهران و مربی دانشگاه جیرفت روح اله رضایی استادیار دانشکده کشاورزی دانشگاه زنجان سعید غلامرضایی استادیار دانشکده کشاورزی دانشگاه لرستان ناصر برومند استادیار دانشگاه جیرفت

the main objective followed in this research was to study some of the factors influencing water users&apos; participation in management of the irrigation and drainage networks on the lands under jiroft dam. the kind of research method of the study was a descriptive- correlational one. the statistical population of the study consisted of all the water users of irrigation and drainage networks ac...

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