نتایج جستجو برای: percent of total losses

تعداد نتایج: 21200391  

پایان نامه :وزارت علوم، تحقیقات و فناوری - دانشگاه شهید مدنی آذربایجان - دانشکده ادبیات و زبانهای خارجی 1389

according to coates’s (2004, as cited in zhang, 2010) definition of "conversational dominance" (p.111), it refers to the phenomenon of a speaker dominating others in interaction. specifically, it means how a speaker makes use of certain strategies to get the floor and maintain the floor. thus, the amount of talk is the main measurement for the dominance of the conversation. whether a speaker do...

Due to the growth and expansion of cities and the unchanged distribution network, an important issue for electricity distribution companies is customer satisfaction with the quality of received power. It is clear that with the expansion of load centers, the amount of line power flow increases, that creates problems such as voltage drop and increased losses. Distribution network reconfiguration ...

پایان نامه :وزارت علوم، تحقیقات و فناوری - دانشگاه صنعتی اصفهان - دانشکده ریاضی 1390

the main objective in sampling is to select a sample from a population in order to estimate some unknown population parameter, usually a total or a mean of some interesting variable. a simple way to take a sample of size n is to let all the possible samples have the same probability of being selected. this is called simple random sampling and then all units have the same probability of being ch...

Journal: :دانش گیاه پزشکی ایران 0
سید علیرضا سلامی استادیار پردیس کشاورزی و منابع طبیعی دانشگاه تهران علی عبادی استاد پردیس کشاورزی و منابع طبیعی دانشگاه تهران مینا کوهی حبیبی دانشیار پردیس کشاورزی و منابع طبیعی دانشگاه تهران ذبیح الله زمانی دانشیار پردیس کشاورزی و منابع طبیعی دانشگاه تهران

fanleaf degeneration, a disease caused by grapevine fanleaf virus (gflv), is considered as the most destructive grapevine viral disease worldwide causing severe losses in vineyards, annually. gflv is apparently believed to have originated from ancient persia and therefore, to restrict it in its further infections, a precise identification along with a monitoring of its distribution pattern is c...

Due to the growth and expansion of cities and the unchanged distribution network, an important issue for electricity distribution companies is customer satisfaction with the quality of received power. It is clear that with the expansion of load centers, the amount of line power flow increases, that creates problems such as voltage drop and increased losses. Distribution network reconfiguration ...

Journal: :health scope 0
hosein kamani health promotion research center, zahedan university of medical sciences, ir iran; department of environmental health engineering, school of public health, tehran university of medical sciences, tehran, ir iran mohammad malakootian environmental health research center and environmental health engineering department, school of public health, kerman university of medical sciences, ir iran mohammad hoseini department of environmental health engineering, school of public health, tehran university of medical sciences, tehran, ir iran; department of environmental health engineering, school of public health, tehran university of medical sciences, tehran, ir iran. tel: +9821-22909114, fax: +9821-88954914 jalil jaafari department of environmental health engineering, school of public health, tehran university of medical sciences, tehran, ir iran

background the non-revenue water refers to a difference between the volume of water entering the system and billed authorized consumption. objectives the main purpose of this study is to determine the volume of non-revenue water in order to recognize the factors influencing water losses so that the information gathered can used in non-revenue water reduction management. materials and methods ka...

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