نتایج جستجو برای: mine water inflow

تعداد نتایج: 579729  

2012
Zikun Xing Derek A. Fong Kok Meng Tan Edmond Yat-Man Lo Stephen G. Monismith

[1] This study is one of the few attempts to close water and heat budgets in tropical lakes and reservoirs on both daily and monthly time scales. A water budget of Kranji Reservoir is constructed for the year of 2007 using data for water level, reservoir gate operation records, and inflow predicted by a catchment rainfall-runoff model. A heat budget of Kranji Reservoir is also constructed for a...

2015
Malin Bomberg Päivi Kinnunen Anna H. Kaksonen

Drainage from metal-sulphide rich rocks may cause considerable environmental stress in the form of elevated sulphate and heavy metal contamination of the environment. Mine draining effects from closed mines may be abated using indigenous and introduced microbial communities for sulphate reduction and metal precipitation at the mining site. Here we characterized the general and sulphate reducing...

Journal: :Transactions on Networks and Communications 2018

Journal: :Mining of Mineral Deposits 2021

Purpose.In this paper we present and validate an analytical model of water inflow rising level in a flooded mine examine the robustness sensitivity to variations input data considering examples three closed hard-coal mines Germany. Methods. We used solution boundary value problem radial ground flow shaft, treated as big well, balance relations for series successive stationary positions depressi...

Journal: :Health promotion perspectives 2011
Behzad Hajalilou Mohammad Mosaferi Fazel Khaleghi Sakineh Jadidi Bahram Vosugh Esmail Fatehifar

BACKGROUND Pollution due to mining activities could have an important role in health and welfare of people who are living in mining area. When mining operation finishes, environ-ment of mining area can be influenced by related pollution e.g. heavy metals emission to wa-ter resources. The present study was aimed to evaluate Valiloo abandoned arsenic mine ef-fects on drinking water resources qual...

2004
Victoria Taber

1 Atract-Falling of mine through air, water, and sediment is investigated experimentally and theoretically. Two experiments were conducted to drop cylindrical mine with the density ratio around 1.8 into shallow water (around 13 m deep) in the Monterey Bay (Exp-1) and into the Naval Postgraduate School’s swimming pool (Exp-2). During the experiments, we carefully observe mine track and burial de...

Journal: :IOP Conference Series: Earth and Environmental Science 2021

Journal: :The American journal of physiology 1999
D P Swain

The concentration of glucose is tightly regulated in the blood by a complicated set of physiological variables. To provide students with a means to more readily understand these complex mechanisms, the control of the water level in a beaver pond is presented as an analogy. A beaver must maintain a constant water level in the pond for the proper functioning of the lodge, just as blood glucose is...

Journal: :محیط شناسی 0
مهرداد نظریها استادیار دانشکده محیط زیست دانشگاه تهران عرفان دانایی دانشجوی کارشناسی ارشد مهندسی محیط زیست دانشگاه تهران سید حسین هاشمی استادیار پژوهشکده علوم محیطی دانشگاه شهید بهشتی امیر حسین ایزد دوستدار مدیر دفتر مطالعات پایه، محیط زیست و میراث فرهنگی شرکت توسعه منابع آب و نیروی ایران

construction and operation of dams have two main effects on streams. at first it increases detention time and then leads to thermal stratification. changing of water quality is the result of these effects and the outflow has different physical, chemical and biological characteristics from inflow.in this study thermal regime in proposed bakhtyari reservoir was simulated with ce-qual-w2 model. th...

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