نتایج جستجو برای: drainage and imbibitions

تعداد نتایج: 16834404  

2011
Mai John Eggert

1 . D e r H e r s c h e l E f f e k t a m l a t e n t e n B i l d v o n T e i l c h e n s p u r e n i n v e r s c h i e d e n e n K e r n s p u r e n E m u l s i c n e n i s t a d d i t i v . I n Ü b e r e i n s t i m m u n g m i t d e n B e o b a c h t u n g e n b e i L i c h t q u a n t e n k l i n g t e r z e i t l i c h a b ; e r i s t r e l a t i v s c h w ä c h e r i n S p u r e n s c h w...

2011

There ' s something d i s turb ing in the mere suggest ion that soeial organizat ions in which golf is p a r amount should ever find themselves g r ipped in the tentacles of the law. Their very nature that of promot ing good f e l l owsh ip and brother ly l ove—wou ld seem suf f ic ient of itself to exempt them f rom embro i lment in things so mundane as common lawsuits in which they could he s...

Journal: :iranian journal of chemistry and chemical engineering (ijcce) 2008
maryam moshkelani mohammad chalkesh amiri

in the present  paper electrical conductivity (ec) of colloidal gas aphron (cga) suspensions was measured for anionic and cationic surfactants (sodium dodecyl sulfate (sds) and tetradecyl trimethyl ammonium bromide (ttab)). experiments were made for different concentrations of sds (6, 8.1, 10 mm) and ttab (2, 3.51, 5 mm). cga drainage behavior was observed and measured using 1 liter measuring c...

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...

ژورنال: علوم آب و خاک 2017

Bi-level drainage system is a type of underground drainage systems, in which adjacent drainage lines are installed at different depths. In the Hydraulics Laboratory, Ferdowsi University of Mashhad, a model was built, that include a cube tank 2 meters in length, width and height of 1 meters was made ​​of galvanized. In this model, two rows 20 cm apart from each other drains were installed. As dr...

Journal: :تحقیقات جغرافیایی 0
مریم جعفری اقدم مهران مقصودی سجاد باقری سید شکری

nesar anticline is located in west of country and in north of kermanshah province. pattern of drainage network at each district is under the effect of various factors which has intensive anomaly in nesar anticline in spite of its low area and this in turn reflects different lithology, tectonic effects and slope changes in anticline. the goal of this research is the recognition of influential fa...

Journal: :آب و خاک 0

introduction: better use of water and soil resources in paddy fields, increase in rice production and farmer's income, installation of subsurface drainage system is necessary. the main goalof these systems, are aeration conditions improvement prevention of water logging, yield increase, land use increase and multiuse of the land. in different countries, installation of subsurface drainage cause...

Journal: :فیزیک زمین و فضا 0
اصغر کوهپیما کارشناس ارشد آبخیزداری، گروه احیاء مناطق خشک و کوهستانی، دانشکده منابع طبیعی دانشگاه تهران، ایران سادات فیض نیا استاد، گروه گروه احیاء مناطق خشک و کوهستانی، دانشکده منابع طبیعی دانشگاه تهران، ایران حسن احمدی استاد، گروه گروه احیاء مناطق خشک و کوهستانی، دانشکده منابع طبیعی دانشگاه تهران، ایران محمد معظمی دانشجوی دکتری آبخیزداری، گروه احیاء مناطق خشک و کوهستانی، دانشکده منابع طبیعی دانشگاه تهران، ایران

designing effective strategies for sediment management and control is closely related to identification of sediment sources in a drainage basin. one of the methods for investigating sediment sources is using magnetic tracers for erosion and sediment yield studies. sediment source identification using magnetic characteristics is a simple, inexpensive, quick and non-destructive method having appl...

Maryam Moshkelani, Mohammad Chalkesh Amiri

In the present  paper Electrical Conductivity (EC) of Colloidal Gas Aphron (CGA) suspensions was measured for anionic and cationic surfactants (Sodium Dodecyl Sulfate (SDS) and Tetradecyl Trimethyl Ammonium Bromide (TTAB)). Experiments were made for different concentrations of SDS (6, 8.1, 10 mM) and TTAB (2, 3.51, 5 mM). CGA drainage behavior was observed and measured using 1 liter measuri...

Journal: :مدیریت آب و آبیاری 0
حسین مولوی دانشجوی کارشناسی ارشد گروه مهندسی آبیاری و آبادانی، دانشکده علوم آب و خاک، پردیس کشاورزی و منابع طبیعی، دانشگاه تهران مسعود پارسی نژاد دانشیار گروه مهندسی آبیاری و آبادانی، دانشکده علوم آب و خاک، پردیس کشاورزی و منابع طبیعی، دانشگاه تهران عبدالمجید لیاقت استاد گروه مهندسی آبیاری و آبادانی، دانشکده علوم آب و خاک، پردیس کشاورزی و منابع طبیعی، دانشگاه تهران

controlled drainage is one of the strategies to reduce negative environmental effects in conventional drainage systems. this study examines the effect of controlled drainage on quality and quantity of drainage water, specifically amounts of salt and nitrate in drainage water, and nitrate uptake by maize (sc 704) with sandy loam soil texture in karaj. the experiment was performed as a randomized...

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