نتایج جستجو برای: wells and subterranean
تعداد نتایج: 16831525 فیلتر نتایج به سال:
The design of relief wells includes determination of the distance of relief wells from each other, their distance from the dam upstream, the well diameter and discharge into each wells. This study tends to investigate these factors effect on uplift pressure in earth dams. For this purpose, finite elements method (FEM) was used for different configuration of relief wells in downstream of an eart...
In the current study, the qualitative status of potable well water was assessed using the groundwater quality index during a course of 4 years (2014-2017). This study was carried out with an aim to monitor the drinking water resources from 12 potable wells on the multivariate analysis basis and for determination of groundwater quality index, the following 13 physicochemical parameters including...
Recent studies revealed that although subterranean mammals inhabit a dark underground environment, they can still perceive light stimuli and use this to entrain their circadian activity rhythm. Regarding spatial orientation, olfactory and tactile cues are employed for short-distance; whereas for long-distance, subterranean mammals employ the earth's magnetic field and self-generated (vestibular...
The International Workshop on Neutrinos and Subterranean Science (NeSS 2002) was held September 19-21 in Washington, DC, pursuant to a request from the executive branch of the U.S. government for a workshop to develop a roadmap that will guide neutrino and subterranean science investigations worldwide over the next few years. The interdisciplinary meeting was structured around scientific workin...
this ominous distinction. Elkhorn used to be the dominant species in shallow waters of the Caribbean, with a distribution range from Biscayne National Park, Florida, to the coast of Venezuela. Researchers believe that its abundance has been reduced by over 95% since 1980. Staghorn is the fastest-growing Western Atlantic coral and used to be found throughout the Caribbean. Its population has dec...
Subterranean termites in the genus Coptotermes Holmgren are structural pests that have become globally distributed beyond their native range in Southeast Asia. Because of their destructive nature, it is useful to understand the pathways of their spread. Additionally, phylogenetic analysis of evolutionary relationships may lead to increased accuracy of insecticide-based management on the basis t...
Background and Objective: Water corrosion leads to increase in toxic metals concentration, such as arsenic, copper, lead, cadmium, zinc, nickel, iron and manganese in water. Toxic metals in water consumers cause acute health risks. Scaling water leads to economic and technical problems. Thus, The aim of this study was to investigate the corrosion and scaling potential of wells drinking wate...
The Formosan subterranean termite, Coptotermes formosanus Shiraki is currently one of the most destructive pests in the USA. It is estimated to cost consumers over US dollars 1 billion annually for preventative and remedial treatment and to repair damage caused by this insect. The mission of the Formosan Subterranean Termite Research Unit of the Agricultural Research Service is to demonstrate t...
Beetles (Coleoptera) are the largest order of insects, which exist in all agroecosystems and natural ecosystems. Since rice fields include both aquatic and subterranean ecosystems, diverse fauna of beetles are active in rice fields of the world. In regard to the importance of these insects in chain foods of biosphere, fauna of some coleopteran families was surveyed in north rice fields of Iran ...
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