نتایج جستجو برای: drainage network density

تعداد نتایج: 1101403  

Journal: :International Association of Scientific Hydrology. Bulletin 1968

Journal: :International Journal of GEOMATE 2018

Mahmoud Reza Pishvaie, Najeh Alali Vahid Taghikhani

Production of highly viscous tar sand bitumen using Steam Assisted Gravity Drainage (SAGD) with a pair of horizontal wells has advantages over conventional steam flooding. This paper explores the use of Artificial Neural Networks (ANNs) as an alternative to the traditional SAGD simulation approach. Feed forward, multi-layered neural network meta-models are trained through the Back-...

Background and aim: The aim of this study was to analyze and draw up a citation network of published schizophrenia-related resources in Iran from 2012 to 2016 so that this citation network provides a guidance for researchers and acquisition in information centers by specifying the status of resources and researchers in Iran. Material and methods: The current study was conducted through citation...

Journal: :Journal of biomedical materials research. Part A 2013
Keith H K Wong James G Truslow Aimal H Khankhel Kelvin L S Chan Joe Tien

The formation of a stably perfused microvasculature continues to be a major challenge in tissue engineering. Previous work has suggested the importance of a sufficiently large transmural pressure in maintaining vascular stability and perfusion. Here we show that a system of empty channels that provides a drainage function analogous to that of lymphatic microvasculature in vivo can stabilize vas...

2003
T. F. Stepinski R. Vilalta M. Achari P. J. McGovern

We present an algorithmic classification of drainage networks on Mars. Altogether, 368 drainage networks were computationally extracted using MOLA topographical data from various martian locations covering 16 major geological units. The classification is quantitative and objective, as it is based on a numerical description of drainage networks. Applying a clustering algorithm to our dataset, we...

Journal: :journal of chemical and petroleum engineering 2015
bita karami majid mohadesi gholamreza moradi ramin moradi

in recent years, biodiesel has been considered as a good alternative of diesel fuels. density and viscosity are two important properties of these fuels. in this study, density and kinematic viscosity of biodiesel-diesel blends were estimated by using artificial neural network (ann). a three-layer feed forward neural network with levenberg-marquard (lm) algorithm was used for learning empirical ...

Journal: :journal of biomedical physics and engineering 0
s. sina radiation research center, shiraz university, shiraz, iran. r. faghihi radiation research center, shiraz university, shiraz, iran a. s. meigooni nuclear engineering department, school of mechanical engineering, shiraz university, shiraz, iran.

background: the artificial neural networks (anns) are useful in solving nonlinear processes, without the need for mathematical models of the parameters. since the relationship between the ct numbers and material compositions is not linear, ann can be used for obtaining tissue density and composition. objective: the aim of this study is to utilize ann for determination of the composition and mas...

Journal: :iranian journal of parasitology 0
farahnaz sadoughi ali valinejadi mansoureh serati shirazi rouhallah khademi

background: the aim of this study was to survey the iranian parasitology researchers’ performance, and analyse and visualize the scientific outputs of their co-authorship network. methods: this study was conducted using scientometric method and social network analysis (sna). the data extracted from the web of science (wos) databases in july 10th 2014. totally, 1048documents of all types in rese...

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