نتایج جستجو برای: dispersion models and land

تعداد نتایج: 16951237  

2009
An-Min Wang Dao-Zhi Zeng

In this paper, we explore the interaction between taxation and local public good (LPG) and how it impacts the spatial pattern in the framework of new economic geography (NEG). In the benchmark case of a pure LPG, the system displays a similar location pattern to the existing NEG taxation model, although the tax reduces the market size of manufactured goods. However, when we consider the inheren...

1998
Koichi Okamoto Noboru Hirota Masahide Terazima

ion from the water molecule may be smaller than that from the ethanol molecule. A main source of the experimental error in D comes from the fitting error of the double-exponential function.2b Recently, Donkers and Leaist have reported D of BQ and AP in ethanol determined by the Tayler dispersion (TD) method as 1.44 and 1.26 × 10-9 m2 s-1, respectively.39 Our values from the TG method are close ...

2012
Tiziana Calamoneri Rossella Petreschi Blerina Sinaimeri

A graph G is called a pairwise compatibility graph (PCG) if there exists an edge weighted tree T and two non-negative real numbers dmin and dmax such that each leaf lu of T corresponds to a vertex u ∈ V and there is an edge (u, v) ∈ E if and only if dmin ≤ dT (lu, lv) ≤ dmax where dT (lu, lv) is the sum of the weights of the edges on the unique path from lu to lv in T . In this paper we analyze...

Journal: :Theor. Comput. Sci. 2014
Tiziana Calamoneri Rossella Petreschi

A graph G = (V, E) is called a pairwise compatibility graph (PCG) if there exists a tree T , a positive edge-weight function w on T , and two non-negative real numbers dmin and dmax, dmin ≤ dmax, such that V coincides with the set of leaves of T , and there is an edge (u, v) ∈ E if and only if dmin ≤ dT,w(u, v) ≤ dmax where dT,w(u, v) is the sum of the weights of the edges on the unique path fr...

Soil erosion and sediment yield from watersheds confine sustainable use of land resources and is supposed as one of the most critical environmental issues. Prediction of storm wise soil erosion and sediment yield is very important, especially in arid and semiarid regions due to small number of events and high intensity of rainfall. Evaluation of soil erosion by existing models is needed as an i...

Journal: :تحقیقات آب و خاک ایران 0
سعید امامی فر کارشناس ارشد گروه مهندسی آبیاری و زهکشی پردیس ابوریحان دانشگاه تهران علی رحیمی خوب دانشیار گروه مهندسی آبیاری و زهکشی پردیس ابوریحان دانشگاه تهران علی اکبر نوروزی استادیار پژوهشکدة حفاظت خاک و آبخیزداری

the use of satellite data in an estimation of air temperature (ta) near the earth’s surface has turned into an effective way for a large area of high spatial and temporal resolution. throughout the present study, artificial neural network (ann) as well as m5 model tree were employed to estimate ta in khuzestan province (south west of iran), using satellite remotely sensed land surface temperatu...

Balamurugan Jeganathan, Vijayalakshmi Prakya

     The aim of this study is to prepare novel sorbitol based extended release tablets by melt dispersion method using carbamazepine as a model drug. Carbamazepine was melted along with sugar alcohol to get melt dispersion granules (MGDs) and was characterized by differential scanning calorimetry (DSC), powder X-ray diffractometry (XRD) and solubility study. The physical and chemical parameters...

Journal: :Electronic Notes in Discrete Mathematics 2013
Tiziana Calamoneri Rossella Petreschi

A graph G = (V, E) is called a pairwise compatibility graph (PCG) if there exists a tree T , a positive edge-weight function w on T , and two non-negative real numbers dmin and dmax, dmin ≤ dmax, such that V coincides with the set of leaves of T , and there is an edge (u, v) ∈ E if and only if dmin ≤ dT,w(u, v) ≤ dmax where dT,w(u, v) is the sum of the weights of the edges on the unique path fr...

Journal: :اکو هیدرولوژی 0
مهدی وفاخواه دانشکده منابع طبیعی دانشگاه تربیت مدرس محمدرضا جوادی استادیار دانشگاه آزاد اسلامی واحد نور جوانشیر نجفی مجد دانشجوی کارشناسی ارشد آبخیزداری دانشگاه آزاد اسلامی واحد نور

due to the importance of the role of land use changes on runoff changes, several studies have taken place to develop models with simulating land use changes. in this study, the l-thia model was used for estimating the runoff made by land use changes in chalousrud watershed. results of runoff modeling using l-thia model showed that runoff depth increased from 422.98mm to 809.168mm during 1984 to...

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