نتایج جستجو برای: keywords water optimal allocation

تعداد نتایج: 2778393  

2013
F. P. Wu L. N. Zhang L. P. Feng P. Jia

In view of the characteristics of multi-objective and uncertainty and complexity of the water resources allocation, the optimization of water resources allocation schemes can be regarded as a multi-objective grey relational decision-making procedure. This paper, integrating the grey relational decision-making method and the evidence theory, researches on the optimization method of allocation sc...

Journal: :تحقیقات آب و خاک ایران 0
علیرضا توکلی استادیار، مرکز تحقیقات کشاورزی استان سمنان

the main objective in production of any rainfed crop, including barley farming is to increase water productivity along with stability in the production of the rainfed crop through improvement of the agronomic management including limited single irrigation (si) and sowing date (sd). in order to determine optimal si management and limited water allocation scenarios, a field experiment was conduct...

Journal: :اکو هیدرولوژی 0
مهری کاکی کارشناس ارشد مهندسی منابع آب، دانشگاه تبریز احمد فاخری فرد استاد گروه مهندسی آب، دانشکدۀ کشاورزی، دانشگاه تبریز مطلب بایزیدی استادیار گروه مهندسی آب، دانشگاه آزاد اسلامی واحد سنندج، ایران سینا شکیبا کارشناس ارشد زمین شناسی زیست محیطی، دانشگاه ارومیه

dam reservoirs supply potable, agricultural, and industrial water in most cities of iran. due to lack of proper operational rules or unbalanced demand versus water resources volume, (along operating time) correction in operational rules is required to fulfill current situations. hence the goal of this study is to optimize the qeshlaq dam reservoir operation rules to maximize the water release f...

Journal: :IEEE Trans. Information Theory 2001
Nihar Jindal Andrea J. Goldsmith

We derive the capacity and optimal power allocation scheme for a multi-user fading broadcast channel in which minimum rates must be maintained for each user in all fading states, assuming perfect channel state information at the transmitter and at all receivers. We show that superposition coding can achieve the capacity of such channels and explicitly characterize the boundary of the capacity r...

Journal: :Aqua 2022

Abstract Viewing water management as a multifaceted issue is critical to achieving sustainable management. This paper proposes an integrated optimal allocation model for aquifer sustainability and environmental benefits when managing conjunctive resources. Optimization techniques such genetic algorithm (GA) non-dominated sorting (NSGA-II) are used balance economic benefit demand based on decisi...

2010
Ricard Giné Garriga Agustí Pérez Foguet

The Water Poverty Index WPI was created as an interdisciplinary indicator to assess water stress and scarcity, linking physical estimates of water availability with the socioeconomic drivers of poverty. This index has found great relevance in policy making as an effective water management tool, particularly in resources allocation and prioritization processes. Two conceptual weaknesses exist in...

The unequal allocation of economic resources, or other resources of wealth, regarding to the efficiency among the factors of production, is considered as one of the most important condition of optimal resource allocation in the market system. In other words, the market mechanism in the process of allocating resources among the factors of production rewards to the resources with higher returns. ...

2001
Wei Yu John M. Cioffi

This paper derives a rigorous performance bound for the constant-power water-filling algorithm for ISI channels with multicarrier modulation and for i.i.d. fading channels with adaptive modulation. Based on the performance bound, a very-low complexity logarithm-free power allocation algorithm is proposed. Theoretical worstcase analysis and simulation show that the approximate water-filling sche...

2011
Valerii V. Fedorov Nancy Flournoy Yuehui Wu Rongmei Zhang

In the dose–finding setting, we discuss and compare adaptive designs, including those which allocate each new patient (or a cohort of patients) to the dose currently viewed as the best one, for example, the seemingly most efficacious. We call this type of allocation “best intention” designs and found that, similar to other areas of life, the best intention may pave the road to rather disastrous...

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