نتایج جستجو برای: environmental index

تعداد نتایج: 752567  

Journal: :Water 2021

Tropical rivers and wetlands are recognized as one of the greatest most abundant ecosystems in terms ecological social benefits. However, climate change, damming, overfishing, water pollution, introduction exotic species threaten these ecosystems, which puts about 65% river flow aquatic under a moderate to high level threat. This paper aims assess environmental Selangor River based on hydrologi...

Journal: :Journal of Marine Science and Engineering 2023

Spatial environmental heterogeneity in the Yangtze River Estuary (YRE) is always mentioned but rarely quantified and included evaluation process. This study introduced habitat suitability index model based on Gini (HSIgini) to evaluate optimal ranges of suitable factors for three typical estuarine gobies, i.e., Rhinogobius giurinus, Acentrogobius pflaumii, Odontamblyopus rubicundus, their quali...

2013
DINESH KUMAR T. R. Sreekrishnan Manoj Dutta Rakesh Khosa Munish Chandel Sumedha Chakma V. K. Mehrotra Arun Kumar

Landfilling is one of the most widely used techniques, despite its numerous environmental problems, for the treatment and disposal of solid wastes. Significant effort has been directed toward the development of improved landfill designs to reduce the negative environmental impacts. Still, at present, about three quarters of the countries and territories around the world use 'open dumping' metho...

Journal: :Computers & Chemical Engineering 2004
Xiao-ping Jia Fang-yu Han Xin-shun Tan

A method for environmental performance assessment is presented in this paper. The proposed method considers the procedure for environmental performance comparison of design alternatives as a multi-criteria decision-making (MCDM) problem. Integrated assessment model based on analytic hierarchy process (AHP) is presented for solving MCDM problem. An integrated environmental index (IEI) for chemic...

2015
Emir Malikov Efthymios G. Tsionas

This paper models the firm’s production process as a system of simultaneous technologies for desirable and undesirable outputs. Desirable outputs are produced by transforming inputs via the conventional transformation function, whereas (consistent with the material balance condition) undesirable outputs are by-produced via the so-called “residual generation technology”. By separating the produc...

Journal: :محیط زیست طبیعی 0
آسیه صادقی دانش آموخته کارشناسی ارشد محیط زیست، دانشگاه تهران، دانشکده منابع طبیعی، ایران نعمت ا... خراسانی استاد دانشگاه تهران، دانشکده منابع طبیعی، ایران افشین دانه کار دانشیار دانشگاه تهران، دانشکده منابع طبیعی، ایران طاهره اردکانی مربی دانشگاه یزد، مرکز آموزش عالی اردکان، ایران

increasing the usage of electricity power illustrates its growing proportion and effective role in the energy economy. it also depicts the connection between using the electricity power and economic development. regarding the strategic role of power plants in the economic and social development, the absence of the environmental considerations in all phases, including site selection, planning, p...

حسینی, سیدمحمود, سعادت جو, سیدعلیرضا, طاهری, فاطمه,

Background and Aim: Body mass index (BMI) is the most useful index used to screen children obesity. Since height and weight are determined by genetic, racial and environmental factors, body mass index can differ from one population to another. The aim of this study was to prepare the normogram of (7-120year old) children body mass index (BMI) in Birjand and to compare it with that of with the c...

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