نتایج جستجو برای: wqi indicator

تعداد نتایج: 75787  

Journal: :Oriental journal of chemistry 2022

The current study was conducted to assess the water quality of Valley Duhok as a source for drinking livestock and poultry in region. Seventy-two samples were collected from six sites valley conduct physicochemical biological tests, sub-index model (WQI) applied quality.The results index indicated that Dam Lake (site N1) good poultry, while rest on category very poor animals, with WQI values ra...

Alireza Rahmani, Mohammad Hossien Saghi, Mohammad Taghi Samadi, Shahram Sadeghi,

Background: Survey of pollution and evaluation of water quality in rivers with Oregon Water Quality Index (OWQI) and GIS are effective tools for management of the impact of environmental water resources. The information in calculating the WQI of Moradbeik river allowed us to take our tests results and make a scientific conclusion about the quality of water. GIS can be a powerful tool for develo...

Journal: :Procedia Computer Science 2022

The practice of river quality classification usually uses Water Quality Index (WQI) to evaluate the WQI values river. However, due huge data collection on pollution with uncertain water parameter values, need a different approach classify quality. One supervised algorithms known as K-Nearest Neighbors (KNN) seems give new for where each points are classified according k number or closest neighb...

Journal: :Sustainability 2023

Groundwater is regarded as the primary source of agricultural and drinking water in semi-arid arid regions. However, toxic substances released from sources such landfills, industries, insecticides, fertilizers previous year exhibited extreme levels groundwater contamination. As a result, it crucial to assess quality for activities, both its current use potential become reliable supply individua...

ژورنال: :علمی شیلات ایران 0
مهتاب خلجی m khalaji دانشکده منابع طبیعی، دانشگاه صنعتی اصفهان، اصفهان 83111-84156 ، ایران عیسی ابراهیمی e ebrahimi دانشگاه صنعتی اصفهان ابراهیم متقی e motaghe دانشکده منابع طبیعی، دانشگاه صنعتی اصفهان، اصفهان 83111-84156 ، ایران سعید اسداله s asadola دانشکده منابع طبیعی، دانشگاه صنعتی اصفهان، اصفهان 83111-84156 ، ایران هستی هاشمی نژاد h hashemenejad دانشکده عمران، دانشگاه صنعتی اصفهان، اصفهان 83111-84156 ، ایران

مطالعات زیستی و بوم­شناختی منابع آب از مباحث اساسی در تحقیق و بررسی های علمی مربوط به منابع آب  است. شناسایی ویژگی­های هر اکوسیستم، موجودات زنده و فاکتورهای محیط زیستی حاکم بر آن، گام نخست این مطالعات محسوب می­شود. ارزیابی کیفیت منابع آب بخصوص منابع آب آشامیدنی در سال­های اخیر همزمان با کاهش کمیت و کیفیت منابع آب از اهمیت بسیاری برخوردار گردیده است. دریاچه­ها و مخازن آبی سدها به عنوان منابع مهم...

Journal: :Applied Water Science 2021

Abstract Groundwater is an important source for drinking water supply in hard rock terrain of Bundelkhand massif particularly District Mahoba, Uttar Pradesh, India. An attempt has been made this work to understand the suitability groundwater human consumption. The parameters like pH, electrical conductivity, total dissolved solids, alkalinity , hardness, calcium, magnesium, sodium, potassium, b...

2016
Chong Wei Ying

The aims of this paper are to determine the reliability and validity of Entrepreneurial Attitude Orientation (EAO) scale as an instrument to measure the entrepreneurial attitudes among business students of higher education institutes of Malaysia. Initially, the EAO scale consisted of 75 items concerning 4 conceptual subscales: achievement in business (23 items), perceived personal control of bu...

2016
Ryan Allan Johnson Marc A. Linderman RYAN ALLAN JOHNSON Heather Sander

Ecological indicators, historical land use, and invasive species detection in the lower Iowa River floodplain." MA has been approved by the Examining Committee for the thesis requirement for the Master of Arts degree in Geography at the May 2014 graduation.

Journal: :J. Informetrics 2013
Ludo Waltman Nees Jan van Eck

We address the question how citation-based bibliometric indicators can best be normalized to ensure fair comparisons between publications from different scientific fields and different years. In a systematic large-scale empirical analysis, we compare a traditional normalization approach based on a field classification system with three source normalization approaches. We pay special attention t...

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