نتایج جستجو برای: water class
تعداد نتایج: 940812 فیلتر نتایج به سال:
This study is a contribution to the study of the spatial evolution of the properties of the municipal lake of Yaounde-Cameroon. The objective was the characterization of the physico-chemical, bacteriological and organoleptic parameters of water of this lake in order to provide the scientifically exploitable data. To understand the sources and the evolution of the pollution of this lake, we carr...
The travelling population is increasing globally year on year. International tourist arrival figures reached 1087 million in 2013 and 1133 million in 2014; of which 53% and 54% respectively accounted for air transport. The water on board aircraft is sourced from surface or ground water; piped to a central filling point and distributed to each aircraft by water service vehicles at the home base ...
دربررسی شیوع ترومبوز بطن چپ و رابطه آن با نوع و دفعات آنفارکتوس و درجه نارسائی قلبی (killip class)، مطالعه اکوکاردیوگرافی در 60 بیمار انجام شد . در مجموع 14 ترومبوز یافت شد . 37 بیمار آنفارکتوس قدامی داشتند که 12 مورد با lvt همراه بود . 10بیمار آنفارکتوس باردوم آنها بود که 8 مورد lvt داشتند. 18 بیمار در killip class iii بودند که 8 مورد lvt مشاهده شد. تمام بیماران آکینزی یا دیسکینزی آپیکال داشتن...
[1] We present new isotopic and micropaleontological data from a depth transect on Shatsky Rise that record the response of the tropical Pacific to global biotic and oceanographic shifts during the mid-Maastrichtian. Results reveal a coupling between the upper ocean, characterized by a weak thermocline and low to intermediate productivity, and intermediate waters. During the earliest Maastricht...
In spite of The uncontrolled exploitation of groundwater that has caused a sharp drop in water level, Agricultural, industrial and urban activities enter contaminant to various aquifers. Due to Dehgolan plain importance in water supply of industrial, drinking and agriculture, for the vulnerability assessment DRASTIC model was used. The DRASTIC model uses seven environmental parameters (Depth ...
Excessive nutrient contents in water bodies renders eutrophication and causes undesired structural changes to the environment. One of the most straightforward strategies to address eutrophication issue is through the removal of nutrients such as phosphate ions from the water sources. A combination of membrane fltration and adsorption process is an attractive alternative...
To evaluate sugar beet germplasm for identifying drought tolerant genotypes, precise methods are required for application of drought stress. A field experiment carried out as split arrangments in randomized complete block design with four replications in Karaj, Iran in 2007 and 2008. Main plots consisted of eight irrigation treatments with furrow and tape drip irrigation methods after 30 mm (ex...
The clam R. decussatus is a suspension-feeding bivalve mollusc widely distributed in European and Mediterranean coastal waters. Due to its economic importance it is extensively cultured in many countries, and particularly in Portugal where its production represents > 80 % of total shellfish production. The selection of the clam R. decussatus as a bioindicator was a consequence of its economic i...
desertification in arid, semi-arid and dry sub-humid regions is a global environmental problem. considering theincreasing importance of desertification and its complexity, the necessity of giving attention to desertification criteria andindices is essential. models and methods such as medalus, unep-fao, and others have been proposed on local andnational scales. in this research, imdpa was selec...
desertification refers to land degradation phenomenon in arid, semi-arid and dry sub-humid areas, resulting from various factors including climate variation and human activities. for evaluation and mapping of desertification many research have been conducted leading to regional and local models. in this research, among different existing methods imdpa was selected and desertification intensity ...
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