نتایج جستجو برای: drainage systems

تعداد نتایج: 1220919  

Journal: :Water 2021

Excess surface water on roadways due to storm events can cause hazardous scenarios for traffic. The design of efficient road and transportation facility drainage systems is a major challenge. Different approaches limit excess be found in the standards different countries. This document presents method based hydraulic numerical simulation assessment grate inlet efficiency using Iber model. suita...

خلیلی واودره, سهراب, شاهنظری, علی, ضیاءتبار احمدی, میرخالق, چراغی زاده, مجتبی,

In order to produce the world’s growing population food demands, it would be necessary to increase the productivity. Most of this increase should be gain by funding for improving irrigation and drainage at current fields. High costs of these projects and the funds’ limitation make challenges to conduct the projects; so in order to have optimized use of the limited funds, it would be necessary t...

Journal: :Journal of colloid and interface science 2006
A N Zdravkov G W M Peters H E H Meijer

We report an experimental investigation on the effect of mutual diffusion in polymeric systems on film drainage between two captive drops. The main objective is to study the influence of diffuse interfaces on film drainage. This is done by using material combinations with different interfacial properties and interferometric visualization of the film between two interacting drops. For highly dif...

Journal: :Proceedings of the Institution of Civil Engineers - Engineering Sustainability 2013

2009
Juan Enciso Xavier Périès Luís A. Ribera

* 1Assistant Professor and Extension Specialist, 2Extension Associate and, 3Assistant Professor and Extension Economist; 4Field Engineer (USDA-NRCS, Colorado) Farmers can increase yields and net returns by installing artificial drainage systems on soils that have poor natural drainage. Artificial drainage systems can also increase land value, improve crop insurance coverage, and reclaim saline ...

Ali Asareh, Khosroo Gharbali Mehdi Asadilour,

Sand coverings account for a large part of the cost of a project. The purpose of this study is to evaluate the performance of different coatings for filtration of underground drains and reduce the cost of cornfield farms. The experiments were carried out in farm in Salman Farsi. The subsoil drainage was fitted to each test piece with a length of 120 meters, a diameter of 100 mm, and a distance ...

Journal: : 2021

Research relevance. Climatic changes determine the need to ensure a high productivity of drained lands through use appropriate adaptive measures for regulating and accumulating moisture in soil. Therefore, issue changing approaches creation operation water reclamation facilities on gains Relevant are also methodology projects drainage systems construction reconstruction their optimal design sol...

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There are human and animal health concerns related to drainage systems because nutrients, especially nitrogen and phosphorus, can contaminate water supplies. A field study was conducted on consolidated paddy fields of Sari Agricultural Sciences and Natural Resources University, Northern Iran (36.3°N, 53.04°E), to determine the effect of subsurface drain depth and spacing on nitrogen (N) and pho...

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