نتایج جستجو برای: network flows

تعداد نتایج: 741721  

ژورنال: :پژوهش های دانش زمین 0
برومند صلاحی دانشگاه محقق اردبیلی

در این پژوهش، مقادیر دبی های رودخانه های استان اردبیل با بهره گیری از مدل شبکه های عصبی مصنوعی و نیز با استفاده از توابع و امکانات نرم افزار matlab، مدل سازی شد. بدین منظور، از آمار بلند مدت ایستگاه های هیدرومتری رودخانه های این استان و برخی پارامترهای اقلیمی (دما، رطوبت نسبی، بارندگی و فشار) ایستگاه های سینوپتیک موثر بر میزان دبی های حوضه های این استان در طول دوره آماری 30 ساله (سال آبی 58-135...

سادات فیض نیا, , محمد مهدوی, , کارو لوکس, , علی رضایی, , محمد حسین مهدیان, ,

The model in this research was created based on the Artificial Neural Network (ANN) and calibrated in the Sefid-rood dam basin (excluding Khazar zone). This research was done by gathering and selecting peak flows of hydrographs from 12 sub basins, the concentration time of which was equal to or less than 24 hours and was caused only by rainfall. From all the selected sub basins, totally 661 hyd...

ژورنال: علوم آب و خاک 2007
سادات فیض نیا, , محمد مهدوی, , کارو لوکس, , علی رضایی, , محمد حسین مهدیان, ,

The model in this research was created based on the Artificial Neural Network (ANN) and calibrated in the Sefid-rood dam basin (excluding Khazar zone). This research was done by gathering and selecting peak flows of hydrographs from 12 sub basins, the concentration time of which was equal to or less than 24 hours and was caused only by rainfall. From all the selected sub basins, totally 661 hyd...

Journal: :Hokkaido Mathematical Journal 2015

2002
Jordi Castro

Several network flows heuristics have been suggested in the past for the solution of the complementary suppression problem. However, a limited computational experience using them is reported in the literature, and, moreover, they were only appropriate for two-dimensional tables. The purpose of this paper is twofold. First, we perform an empirical comparison of two network flows heuristics. They...

Restriction Site Mapping is one of the interesting tasks in Computational Biology. A DNA strand can be thought of as a string on the letters A, T, C, and G. When a particular restriction enzyme is added to a DNA solution, the DNA is cut at particular restriction sites. The goal of the restriction site mapping is to determine the location of every site for a given enzyme. In partial digest metho...

Journal: :Journal of Transport Geography 2013

1999
Christian Fremuth-Paeger Dieter Jungnickel

Journal: :NHM 2007
Dirk Helbing Jan Siegmeier Stefan Lämmer

A model for traffic flow in street networks or material flows in supply networks is presented, that takes into account the conservation of cars or materials and other significant features of traffic flows such as jam formation, spillovers, and load-dependent transportation times. Furthermore, conflicts or coordination problems of intersecting or merging flows are considered as well. Making assu...

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