نتایج جستجو برای: five study sites including control area

تعداد نتایج: 5944532  

پایان نامه :وزارت علوم، تحقیقات و فناوری - دانشگاه فردوسی مشهد - دانشکده ادبیات و علوم انسانی 1393

this exploratory study aimed to investigate a possible relationship between learners’ beliefs about language learning and one of their personality traits; that is,locus of control (loc). both variables, beliefs and locus of control, are assumed to influence the language learning process. the internal control index (ici) and the beliefs about language learning inventory (balli) were administered...

ژورنال: علوم آب و خاک 2018

Ziarat drainage basin, in the southern part of Gorgan city, is exposed to mass movement, especially landslide occurrence, due to geologic, geomorphologic, and anthropogenic reasons. The objectives of this study were to predict landslide susceptibility and to analyze the effective factors using rare events logistic regression. In view of this, the map layers of the variables including geology, l...

Journal: :نشریه بازیافت آب 0
مینا ارست کاشان، دانشگاه کاشان، دانشکدة منابع طبیعی و علوم زمین، گروه جغرافیا و اکوتوریسم غلامرضا زهتابیان تهران، دانشگاه تهران، دانشکدة منابع طبیعی، گروه احیای مناطق خشک و کوهستانی محمد جعفری تهران، دانشگاه تهران، دانشکدة منابع طبیعی، گروه احیای مناطق خشک و کوهستانی حسن خسروی تهران، دانشگاه تهران، دانشکدة منابع طبیعی، گروه احیای مناطق خشک و کوهستانی

management of unconventional water management in agricultural lands reduces environmental risks and increases its productivity. the purpose of this study was evaluating and comparing the effect of wastewater, saltwater and brackish water on some soil physical and chemical properties. for this purpose, five study sites including control area, irrigation with saltwater, brackish water wastewater ...

2013
Syeda Rubina Gilani Zaid Mahmood Mushraf Hussain Yawar Baig Zaigham Abbas

In our current study we focused our attention to analyze the drinking water of industrial area of Sheikhupura that is swarming with small and large industries. Previously no work has been reported related to this area. Samples were collected from the twelve different sites of the mentioned area for six months at frequency of once per fifteen days (map in Fig 1). The samples were analyzed under ...

پایان نامه :وزارت علوم، تحقیقات و فناوری - دانشگاه صنعتی خواجه نصیرالدین طوسی - دانشکده برق و کامپیوتر 1391

in the area of automotive engineering there is a tendency to more electrification of power train. in this work control of an induction machine for the application of electric vehicle is investigated. through the changing operating point of the machine, adapting the rotor magnetization current seems to be useful to increase the machines efficiency. in the literature there are many approaches wh...

پایان نامه :دانشگاه آزاد اسلامی - دانشگاه آزاد اسلامی واحد گرمسار - دانشکده ادبیات، زبانهای خارجی و تاریخ 1389

abstract the main purpose of this study was to investigate whether there was any significant difference between the speaking achievement of learners who were trained by means of consciousness raising of sociolinguistic skills and that of learners who were trained without the above mentioned task. the participants of this study consist of 60 intermediate level students participating languag...

پایان نامه :وزارت علوم، تحقیقات و فناوری - دانشگاه بیرجند - دانشکده علوم 1391

in this thesis, we consider a mathematical model of cancer with completely unknown parameters. we study the stability of critical points which are biologically admissible. then we consider a control on the system and introduce situations at which solutions are attracted to critical points and so the cancer disease has auto healing. the lyapunov stability method is used for estimating the un...

پایان نامه :وزارت علوم، تحقیقات و فناوری - دانشگاه شیخ بهایی - دانشکده زبانهای خارجی 1392

the purpose of this study was to investigate the impact of blended learning and multimedia softwares on iranian efl students vocabulary learning. in addition, the present study tried to examine the extent to which multimedia softwares can be applied into efl classes in iran. it also attempted to find out students attitudes toward using these softwares. to this end, 87 iranian efl learners at el...

پایان نامه :وزارت علوم، تحقیقات و فناوری - دانشگاه فردوسی مشهد - دانشکده علوم 1376

saluk mount is selected for devonian biostratigraphy. this area located at southwest of bojnurd. in this study three sections are selected and two sections, chahar-borj and tabar sections with a thickness of 650 m, which consist mainly of calcareous sediments was studied in detailed but third section, qelli section, with a thickness of about 450m which consist mainly of sandstone and evaporates...

Journal: :مرتع و آبخیزداری 0
محمد جعفری استاد دانشکده منابع طبیعی، دانشگاه تهران، ایران حسین آذرنیوند دانشیار دانشکده منابع طبیعی، دانشگاه تهران، ایران علی حاجی بگلو دانش¬آموخته کارشناسی ارشد مرتع¬داری، دانشکده منابع طبیعی، دانشگاه تهران، ایران اسماعیل علیزاده دانشجوی دکتری مرتعداری، دانشکده منابع طبیعی، دانشگاه تهران، ایران

this study investigates the relationship between litter quality and aerial parts of plant on c, n, k, p and c/n ratio of soil in four rangeland species including agropyron intermedium, bromus tomentellus, eurotia ceratoides and kochia prostrata. after recognizing the sites of these species in hamand absard located in 65 km of northern tehran, at the end of growing season, samples of litter, aer...

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