نتایج جستجو برای: ultimate pit limit

تعداد نتایج: 229114  

River bed sand and gravel are utilized more than mountain materials due to their availability and closeness to the transit roads and sites of usage. Excessive and non-technical extraction of gravel and sand bring a kind of interference in them, leading to many negative consequences. Therefore, presenting solutions to reduce these impacts and infilling mining pits are essential. In this researc...

Theoretical review of ‘mining pit lakes’ indicates that like natural lakes such lakes display a huge diversity. They are typically in a non-equilibrium state with respect to their surroundings. Hence, at the decommissioning phase of mining operation a detailed technical study are required on different aspects of such created water bodies considering its morphometry, geology, hydrology, water qu...

2013
Tanya Tillett

Pit Latrines and Groundwater Contamination Negative Impacts of a Popular Sanitation Method Worldwide an estimated 1.77 billion people use pit latrines as their primary mode of sanitation. With the prevalence of pit latrine use growing in developing countries, there is heightened concern about the negative impacts on drinking water. A new review assesses the known and measured environmental heal...

حسینی, سید محسن, محمدی, جهانگرد, کوج, یحیی,

  Tree uprooting creates multiple microsites that can be effective on soil heterogeneity. In order to investigate the soil features in pit and mound location, twenty hectare areas of Tarbiat Modares University Experimental Forest Station studied that is located in Mazandaran province, in the north of Iran. Numbers of thirty four uprooted trees were found in study areas. Five microsites were con...

Journal: :American journal of physiology. Renal physiology 2009
Orson W Moe

WHILE THE FUNCTIONS AND PURPOSES of a protein are invariant in biology, the view adopted by biologists often evolves with time sculpted by prevailing database and interpretations. PiT-2 along with its cousin PiT-1 (Na -coupled phosphate transporters of the SLC20 family) have been assigned varying roles and christened different aliases since their discovery. Although mammalian cells do not purpo...

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