نتایج جستجو برای: controlling water

تعداد نتایج: 677943  

Journal: :Climate of The Past 2021

Abstract. Combining historical climatology and environmental history, this article examines the diverse range of strategies deployed by city government Barcelona (Catalonia, NE Spain) to confront recurrent drought episodes experienced between 1626 1650. Our reconstruction in for period 1525–1821, based on pro pluvia rogations as documentary proxy data, identifies years 1626–1635 1640s most sign...

Journal: :فرآیند مدیریت و توسعه 0
ابوالفضل صادقپور abolfazel sadeghpoor

controlling is a very important function of every manager. controlling is based and closely related to planning or the first function of management. these two functions are so related to each other that may be viewed as the blades of a pair of scissors. the scissors can not work unless there are two blades. without plans, control is not possible. theoretically, the concept of concept of control...

2009
Deshen Zhao Xuemei Hu

The paper has analyzed present aquiculture conditions and controlling problems of water environment factors of aquiculture, and constructed effective security aquiculture breeding intelligence controlling system suitable to Chinese situation, and presented the control strategy of neural network realizing dynamic decoupling for the factory aquiculture, and specially solved the water environment ...

2018
Lei Lei Haiqin Lv Yang Yu Ronggui Hu Ruigang Wang Yingming Xu Yongzhen Ding Renwei Feng Zhilian Fan

Citation: Lei L, Lv H, Yu Y, Hu R, Wang R, Xu Y, Ding Y, Feng R and Fan Z (2018) Performances of Water Management, Foliage Dressing, and Variation Screening in Controlling the Accumulation of As and Cd and Maintaining the Concentrations of Essential Elements in the Grains of Rice Plant. Front. Environ. Sci. 6:3. doi: 10.3389/fenvs.2018.00003 Performances of Water Management, Foliage Dressing, a...

Journal: :University of Pennsylvania Law Review 2003

Journal: :Proceedings of the National Academy of Sciences of the United States of America 2005
B R Scanlon D G Levitt R C Reedy K E Keese M J Sully

The impact of climate variability on the water cycle in desert ecosystems is controlled by biospheric feedback at interannual to millennial timescales. This paper describes a unique field dataset from weighing lysimeters beneath nonvegetated and vegetated systems that unequivocally demonstrates the role of vegetation dynamics in controlling water cycle response to interannual climate variabilit...

Electrical power of salinity gradient is one of the sources for renewable energy. This energy can be obtained by mixing two kinds of water with different concentrations. In a river estuary, fresh water naturally mixes with sea water without any obstruction. Reveres electro dialysis (RED) is one of the suitable and practical methods for controlling this unobstructed mixture and extracting energy...

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