نتایج جستجو برای: misadjusting of drainage network

تعداد نتایج: 21232418  

Journal: :journal of agricultural science and technology 2010
m. m. heidari s. kouchakzadeh e. bayat

a subsurface drainage network mainly carries unsteady flow and data are not usually available for model parameters calibration in such networks. in the present research, the finite volume method using the time splitting scheme was employed to develop a computer code for solving the one dimensional unsteady flow equations. using corrugated sub drainage pipes, an experimental prototype setup was ...

Journal: :پژوهش آب در کشاورزی 0
پوریا عطائی دانشجوی دکتری ترویج کشاورزی دانشگاه تربیت مدرس. نسیم ایزدی دانشجوی دکتری ترویج و آموزش کشاورزی دانشگاه بوعلی سینا.

irrigation management transfer to farmers is one of the important and necessary issues for irrigation planners globally. irrigation management transfer or participatory irrigation management by water users’ associations (wua) is a widespread strategy in the world and a good way to remove the country's irrigation and drainage systems problems. the main objective of this research was respons...

Journal: :RGSA: Revista de Gestão Social e Ambiental 2022

Purpose: The objective of this work was to evaluate methods charging urban drainage fees in order finance and guarantee the maintenance operation a network residential subdivision located city Rio de Janeiro.
 
 Theoretical framework: intense growth associated with process soil sealing areas has caused, over years, increase occurrence intensity disasters related floods, reduce capacit...

Journal: :Bulletin of the Geological Society of Greece 2018

Journal: :Water 2022

Due to the existence of drainage networks, urban areas have formed their own hydrological mechanism. The pretreatment complex and elaborate network data has become a challenging step in building an model. This study proposes network-combing method based on potential outfall mechanism for system, analyzes topological structure underground network, generates subcatchment (SBPO). Two methods are c...

Journal: :محیط شناسی 0
علیرضا عرب عامری دانشگاه تربیت مدرس کورش شیرانی مرکز تحقیقات اصفهان جلال کرمی دانشگاه تربیت مدرس عبدالله کلوراژان دانشگاه تربیت مدرس

introductapplication of neural network of multi layers perceptron (mlp) in site selection of municipal solid ‎waste landfilling with emphasis on hydrogeomorphic characteristics (case study: fereydoonshahr city)‎introduction‏:‏cities are at the nexus of a further threat to the environment, namely the production of an increasing ‎quantity and complexity of wastes. the estimated quantity of munici...

Journal: :Global Journal of Engineering Research 2012

2007
Lawrence V. Stanislawski Michael P. Finn Mark Barnes E. Lynn Usery

The catchment, or catchment area, is the area associated with a segment of a drainage network. Surface runoff in a catchment flows into the associated network segment. Catchment area is commonly used for estimating watershed parameters, such as upstream drainage area, flood frequency, or surface-water flow. Hydrologic analyses require relatively accurate catchment area estimates to furnish subs...

Journal: :پژوهش های حفاظت آب و خاک 0

infiltration rate is one of the most important soil physical parameters and is a basic input data in irrigation and drainage projects. although, a number of theoretical or experimental based equations are presented to describe this phenomenon but the evaluation of some new sciences such as artificial neural networks, for prediction of the phenomenon can be investigated. generally, the infiltrat...

نمودار تعداد نتایج جستجو در هر سال

با کلیک روی نمودار نتایج را به سال انتشار فیلتر کنید