نتایج جستجو برای: tds and ec therefore
تعداد نتایج: 16835441 فیلتر نتایج به سال:
in this research,the effect of power ultrasound (20 khz ,800 and 1000w) at 20.40 and 60 minutes on physico-chemical properties of two rice varieties tarom and neda was investigated and by the soaking method in controlled temperature (47°c) compared.results showed the maximum amount of water absorption of rice, observed at 60 minutes ultrasound treatment (1000w) and the lowest was observed in co...
جهت بررسی کیفیت شیمیایی آب شرب مصرفی دام و طیور در استان اصفهان، در تیر ماه سال 1393 از تعداد 114 حلقه چاه از شهرستانهای مختلف استان اصفهان نمونه برداری شد. به طور متوسط غلظت مواد جامد محلول (TDS) در کل استان برابر با 1/876 میلیگرم در لیتر و متوسط هدایت الکتریکی (EC) آن 8/1373 میکروموس بر سانتیمتر بود که وضعیت مطلوبی را نشان داد. کمترین غلظت TDS و EC در آب شهرستانهای سمیرم، فریدن و زرینشهر...
Background and Objective: Determination of quality parameters of drinkable water is important, especially in developing countries, to increase the productivity and better management and planning of water resources. The aim of current study was to apply CART decision tree data mining technique to determine the most effective factors on drinkable water quality in Kazeroon plain, located west of F...
Acid rain still poses a global problem today, exerting many adverse effects on man, animal, and materials. As its research question, the present study tries to find out whether or not acid rains exist in Akure, Nigeria. For so doing, it determines physico-chemical properties of rain water samples, namely pH, temp, Electrical Conductivity (EC), TDS, acidity, SO4-, NO2-, Cl-, and Free CO2. Accord...
toury (1978:200) believes that translation is a kind of activity which inevitably involves at least two languages and two cultural traditions. being polite while asking for something takes place differently in different cultures and languages, therefore various strategies may be applied for making requests and also translation of them in order not to disturb or threaten the face or better to sa...
Available sample data of 270 water samples collected from different intake sources of Nepal is analyzed. Analysis showed that well waters were the hardest with more than 60% samples recording hardness above 180 mg/l whereas stream and spring waters showed only 20% and 10% in the same range, respectively. Total dissolved solid (TDS) contents in spring and stream waters were below 500 mg/l while ...
A Genetic Algorithm optimization model is used in this study to find the optimum flow values of Tigris river branches near Ammara city, which their water be for central marshes restoration after mixing Maissan River. These tributaries are Al-Areed, AlBittera and Al-Majar Al-Kabeer Rivers. The aim enhance quality River, hence provide acceptable marsh restoration. applied different change scenari...
هدف اصلی پژوهش حاضر، بررسی ارتباط کلیفرم کل (TC) و کلیفرم مدفوعی (FC) با پارامترهای فیزیکی و شیمیایی آب در اعماق مختلف مخزن سد سبلان در شرایط لایهبندی حرارتی تابستانه است. به این منظور، نمونهبرداری از اعماق مختلف سد در ماههای خرداد، تیر و مرداد که سد در شرایط لایهبندی شدید حرارتی بود، انجام شد. سپس، در هر نمونه پارامترهای pH، TC، FC، هدایت الکتریکی (EC)، فشار (P)، فسفر کل (TP)، کل جامدات مح...
Modeling surface water quality using soft computing techniques is essential for the effective management of scarce resources and environmental protection. The development accurate predictive models with significant input parameters inconsistent datasets still a challenge. Therefore, further research needed to improve performance models. This study presents methodology dataset pre-processing opt...
Acid rain still poses a global problem today, exerting many adverse effects on man, animal, and materials. As its research question, the present study tries to find out whether or not acid rains exist in Akure, Nigeria. For so doing, it determines physico-chemical properties of rain water samples, namely pH, temp, Electrical Conductivity (EC), TDS, acidity, SO4-, NO2-, Cl-, and Free CO2. Accord...
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