نتایج جستجو برای: year patterns of monthly environmental and river flow

تعداد نتایج: 24145451  

, ,

In nature, a direct route to the river is uncommon. Most rivers have channels that bend wherea complex scour pattern dominates. We have intended to study the behavior patterns necessary to scour a river known as the dominant bends. Numerical models are powerful instruments for the prediction of such areas and can provide a good understanding of these areas. In the present study we have used a t...

ژورنال: علوم آب و خاک 2020

This study aimed to investigate the vulnerability of Sistan plain to fluctuations and Water Scarcity in Hirmand River using the vulnerability framework, by applying the resilience approach. The socioeconomic and biophysical components presented in this framework were embedded in a set of subsystems of the System Dynamics (SD) model. According to this, four levels of reference resilience were de...

2010
Andrew C. Thomas Ryan Weatherbee Huijie Xue Guimei Liu

Six metrics characterize annual aspects of the magnitude and timing of shellfish toxicity resulting from dinoflagellates of the genus Alexandrium at >100 monitoring stations over 21 years (1985–2005) along the coast of Maine, northeastern USA. Climatologies at each station show distinct geographic patterns, generally consistent with previous reports based fewer stations/years. Earliest initiati...

پایان نامه :وزارت علوم، تحقیقات و فناوری - دانشگاه پیام نور - دانشگاه پیام نور استان تهران - دانشکده علوم انسانی 1392

بررسی رابطه بین یادگیری سازمانی و توانمندسازی مدیران و معاونین مدارس شهرستان میانه دکتر محمد اورکی1، دکتر هاشم نعمتی، گلسیما عزیزی* استادیار گروه علوم تربیتی ، دانشگاه پیام نور تهران جنوب استادیار گروه علوم تربیتی. ، دانشگاه پیام نور مشهد دانشجوی کارشناسی ارشد مدیریت آموزشی ، دانشگاه پیام نور تهران جنوب [email protected] میانه- دانشگاه پیام نور میانه مدیر آموزشی، 2226062 – 0423، ت...

Journal: :The Science of the total environment 2014
Mathieu Cladière Céline Bonhomme Lauriane Vilmin Johnny Gasperi Nicolas Flipo Florence Habets Bruno Tassin

This study aims at modelling the daily concentrations of nonylphenolic compounds such as 4-nonylphenol (4-NP), nonylphenol monoethoxylate (NP1EO) and nonylphenoxy acetic acid (NP1EC) within the Seine River downstream of Paris City for over a year, firstly in the present state (year 2010) and for years 2050 and 2100 in order to assess the consequences of global change on the fate of nonylphenoli...

Journal: :تحقیق در علوم شیلاتی 0
m nicoara e zubcov n bagrin n borodin s.a strungaru o jurminscaia

prut river is very important for sustaining the biodiversity and economical activities in its area for romania, ukraine and republic of moldova. anthropogenic activities are present everywhere especially near a big water flow because they need a close water resource. the major problems remain the impact and a possible risk produced as a negative result in these activities (agriculture close to ...

Journal: :journal of mining and environment 2012
v.f navarro torres g zamora echenique r.n singh

hydrographically bolivian poopó lake is located in the basin of desaguadero river and it has over a dozen main tributary rivers and other smaller rivers with lower flow. the mine water discharge from the abandoned and current mining activities polluted these rivers by carrying heavy metals, dissolved and suspended solids which in turn polluted the poopó lake which is considered as an important ...

M. Zamani Faradonbe S. Eagderi

The relationship between some habitat factors and fish assemblage was analyzed in the Taleghan River, Alborz Province, Iran. Fish specimens from thirty-three sites were sampled by electrofishing device in October 2014. The habitat parameters, including elevation (m), water depth (cm), river width (m), river slope (%), current velocity (m.s-1), number of large stone (> 15 cm), average stone diam...

2015
SHUHAIDA BTE ISMAIL Ani Shabri Ruhaidah Samsudin

Successful river flow time series forecasting is a primary goal and an essential procedure required in the planning and water resources management. River flow data are important for engineers to design, build and operate various water projects and development. The monthly river flow data taken from Department of Irrigation and Drainage, Malaysia are used in this study. This study aims to develo...

نمودار تعداد نتایج جستجو در هر سال

با کلیک روی نمودار نتایج را به سال انتشار فیلتر کنید