نتایج جستجو برای: surface water resource

تعداد نتایج: 1311614  

2015
T.A. Livengood G. Chin R.Z. Sagdeev I.G. Mitrofanov W.V. Boynton L.G. Evans M.L. Litvak T.P. McClanahan A.B. Sanin R.D. Starr J.J. Su

The Lunar Exploration Neutron Detector (LEND), on the polar-orbiting Lunar Reconnaissance Orbiter (LRO) spacecraft, has detected suppression in the Moon's naturally-occurring epithermal neutron leakage flux that is consistent with the presence of diurnally varying quantities of hydrogen in the regolith near the equator. Peak hydrogen concentration (neutron flux suppression) is on the dayside of...

2003
H. J. Fowler C. G. Kilsby P. E. O’Connell

[1] During the last decade, there have been increasing concerns over water resource drought in northern England, brought about by the 1995 Yorkshire drought with an estimated 5-month rainfall return period of 200 years. The impacts of climatic change and variability on water resource reliability, resilience, and vulnerability in this region are examined by modeling changes to weather type frequ...

پایان نامه :وزارت علوم، تحقیقات و فناوری - دانشگاه صنعتی اصفهان - دانشکده شیمی 1389

in this thesis, a new optically active poly(amide-imide) (pai) was synthesized by the indirect polycondensation reaction of the l-phenylalanine based diacid chloride and 4,4?-diaminodiphenylether in the presence of triethylamine in n-methyl-2-pyrrolidone. the formation of pai was confirmed by ftir, 1h nmr and elemental analysis. in next step, the surface of titanium dioxide (tio2) nanoparticles...

2016
Henry Ndaimani Paradzayi Tagwireyi Lovelater Sebele Hillary Madzikanda Benjamin Lee Allen

In dry biomes, spatio-temporal variation in surface water resource stocks is pervasive, with unknown effects on the ranging behaviour of large predators. This study assessed the effect of spatial variation in surface water resources on the ranging behaviour of the African wild dog (Lycaon pictus). We analyzed data for 1992 (dry year with 20 water points) and 2000 (wet year with 30 water points)...

Journal: :iranian journal of earth science 0
a. k. m. munirul haque local and revenue audit directorate, audit complex, segun bagicha, dhaka – 1000, bangladesh . m. sarwar jahan institute of environmental science, university of rajshahi , rajshahi – 6205, bangladesh . md. abul kalam azad institute of environmental science, university of rajshahi , rajshahi – 6205, bangladesh .

a case study was carried out to see the impacts of shrimp culture on the surface (pond) and ground water (tube-well) quality in three coastal sub-districts of bagherhat sadar, rampal and morrelganj of bangladesh. the people of rampal (100%), morrelgonj (87.5%) and bagherhat (75.5%) expressed that salinity of both surface and ground water increased after shrimp culture, and water becomes more tu...

Journal: :Journal of insect physiology 2017
Victoire Coqueret Jacques Le Bot Romain Larbat Nicolas Desneux Christophe Robin Stéphane Adamowicz

The leafminer Tuta absoluta (Meyrick) is a major pest of the tomato crop and its development rate is known to decline when nitrogen availability for crop growth is limited. Because N limitation reduces plant primary metabolism but enhances secondary metabolism, one can infer that the slow larval development arises from lower leaf nutritive value and/or higher plant defence. As an attempt to stu...

2013
František Bozek Alexandr Bozek Alena Bumbova Eduard Bakos Jiri Dvorak

The article deals with the classification of alternative water resources in terms of potential risks which is the prerequisite for incorporating these water resources to the emergency plans. The classification is based on the quantification of risks resulting from possible damage, disruption or total destruction of water resource caused by natural and anthropogenic hazards, assessment of water ...

Journal: :مدیریت آب و آبیاری 0
سیده لیلا رضوی طوسی دانشجوی فوق دکتری، گروه سازه های آبی، دانشکدۀ کشاورزی، دانشگاه تربیت مدرس، تهران - ایران جمال محمدولی سامانی استاد، گروه سازه های آبی، دانشکدۀ کشاورزی، دانشگاه تربیت مدرس، تهران- ایران

water is a main resource in sustainable development planning where the management of quality and quantity of these resources play an important role in public health and social welfare. on the other hand, due to social, economic and environmental values of this vital resource, water resource management is considered as a very important task. the long term water strategies are not only a useful g...

Journal: :آب و خاک 0
سیدحسین صدرقاین مهدی اکبری هادی افشار محمدمهدی نخجوانی مقدم

abstract this study was conducted to determine the impacts of different drip irrigation method and amount of water on yield and water use efficiency of tomato in varamin agricultural research center, iran. the study was done during two years. experimental design was randomized complete blocks design (rcbd) in split plot with three replications. three different drip irrigation method; surface dr...

نمودار تعداد نتایج جستجو در هر سال

با کلیک روی نمودار نتایج را به سال انتشار فیلتر کنید