نتایج جستجو برای: c model with driving forces variables

تعداد نتایج: 10442076  

Journal: :اکو هیدرولوژی 0
حسین نوروزی کارشناس ارشد هیدروژئولوژی، دانشکدۀ علوم طبیعی، گروه علوم زمین، دانشگاه تبریز عطاالله ندیری استادیار هیدروژئولوژی، دانشکدۀ علوم طبیعی، گروه علوم زمین، دانشگاه تبریز اصغر اصغری مقدم استاد هیدروژئولوژی، دانشکدۀ علوم طبیعی، گروه علوم زمین، دانشگاه تبریز

the presence of heavy metals anomalies in groundwater resource and their effect on human health through both drinking water and agricultural activities is a serious worldwide. because of with the distribution of these elements in groundwater of malikan plain, the information does not exist, this study were performed to evaluate heavy metals, especially arsenic in groundwater and to determining ...

Journal: :Nature 1991

Journal: :international journal of architectural engineering and urban planning 0
a. khajeh borj sefidi m. ghalehnoee

transformation of land use-land cover change occurs due to the numbers and activities of people. urban growth modeling has attracted authentic attention because it helps to comprehend the mechanisms of land use change and thus helps relevant policies made. this study applied logistic regression to model urban growth in the ahvaz metropolitan area of khuzestan province in idrisi selva software a...

Journal: :international journal of environmental research 2014
c. fernández e.j. cáceres e.r. parodi

the phytoplankton structure and dynamics were analysed in relation to abiotic variables inpaso de las piedras reservoir, argentina. phytoplankton driving forces were explored using a functionalapproach. a total of 15 functional groups were identified among which d, p, h1, f, j and c were the mostimportant. a canonical variate analysis indicated that the categorization of the species in function...

Journal: :international journal of environmental research 0
c. fernández conicet-bb-iado (argentine institute of oceanography), cc 804, camino la carrindanga km 7.5, b8000fwb bahía blanca, argentina e.j. cáceres department of biology, biochemistry and pharmacy, national university of south, san juan 670, b8000icn bahía blanca, argentina e.r. parodi conicet-bb-iado (argentine institute of oceanography), cc 804, camino la carrindanga km 7.5, b8000fwb bahía blanca, argentina, department of biology, biochemistry and pharmacy, national university of south, san juan 670, b8000icn bahía blanca, argentina

the phytoplankton structure and dynamics were analysed in relation to abiotic variables inpaso de las piedras reservoir, argentina. phytoplankton driving forces were explored using a functionalapproach. a total of 15 functional groups were identified among which d, p, h1, f, j and c were the mostimportant. a canonical variate analysis indicated that the categorization of the species in function...

2016
Yonatan Berman Eshel Ben-Jacob Xin Zhang Yoash Shapira

Financial markets are partially composed of sectors dominated by external driving forces, such as commodity prices, infrastructure and other indices. We characterize the statistical properties of such sectors and present a novel model for the coupling of the stock prices and their dominating driving forces, inspired by mean reverting stochastic processes. Using the model we were able to explain...

پایان نامه :وزارت علوم، تحقیقات و فناوری - دانشگاه سیستان و بلوچستان 1390

seismic retrofit strategies have been developed in the past few decades following the introduction of new seismic provisions and the availability of advanced materials and methods. it can be observed that new approaches to deal with more lateral forces are more innovative and more energy absorbent. in line with this, there is a growing trend toward the use of steel shear walls as a system with ...

پایان نامه :وزارت علوم، تحقیقات و فناوری - دانشگاه تربیت مدرس - دانشکده علوم انسانی 1389

rivers and runoff have always been of interest to human beings. in order to make use of the proper water resources, human societies, industrial and agricultural centers, etc. have usually been established near rivers. as the time goes on, these societies developed, and therefore water resources were extracted more and more. consequently, conditions of water quality of the rivers experienced rap...

پایان نامه :وزارت علوم، تحقیقات و فناوری - دانشگاه تبریز 0

a semi-empirical mathematical model for predicting physical part of ignition delay period in the combustion of direct - injection diesel engines with swirl is developed . this model based on a single droplet evaporation model . the governing equations , namely , equations of droplet motion , heat and mass transfer were solved simultaneously using a rung-kutta step by step unmerical method . the...

2007
Jochen Möbert Jochen Moebert

Based on monthly observations, I specify an econometric model capturing the driving forces behind the crude oil price series in recent years. A large set of covariates, such as supply and demand variables as well as futures market variables, is used to test the impact on the crude oil price. Current price movements are a result of scarce refining capacity and speculators betting on higher price...

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