Yield-Evaporation-Spill Relationship in Semiarid Reservoirs under Different Operating Rules

2021 ◽  
Vol 147 (11) ◽  
pp. 04021074
Author(s):  
Pedro Gustavo Câmara da Silva ◽  
Jonathan Mota da Silva ◽  
Arthur de Souza Antunes Suassuna ◽  
Adelena Gonçalves Maia
Keyword(s):  
Operating Rules

Research on Persona-Based User Requirement in the Future Exploratory Products Design

2014 ◽  
Vol 912-914 ◽  
pp. 1710-1713
Author(s):  
Qing Zhang ◽  
Sui Huai Yu ◽  
Ming Jiu Yu
Keyword(s):  
Data Mining ◽  
User Modeling ◽  
Modeling Method ◽  
Mobile Internet ◽  
User Requirement ◽  
Operating Rules ◽  
The Future ◽  
Key Factor

During the design processing of the future exploratory products, requirements from users seems to be a key factor for products availability achievement. As a practical user modeling method, Persona may accomplish the potential needs data mining effectively based on the analyzing of users. This review mainly focused on how to apply the persona in the exploratory products investigation to acquire useful information from the products design. The method to establish persona and the operating rules were also discussed in this article. The concept of the mobile internet device in future was used as an case to demonstrate the persona mentioned above.

Coupled Operating Rules for Optimal Operation of Multi-Reservoir Systems

2017 ◽  
Vol 31 (14) ◽  
pp. 4505-4520 ◽  
Author(s):  
Seyed Mohammad Ashrafi ◽  
Alireza Borhani Dariane
Keyword(s):  
Optimal Operation ◽  
Operating Rules ◽  
Reservoir Systems

scholarly journals Identification of the degree of impact of dams on the hydrologic regime of semi-arid rivers: an evaluation of the DHRAM method

RBRH ◽  
2017 ◽  
Vol 22 (0) ◽  
Author(s):  
Naiah Caroline Rodrigues de Souza ◽  
◽  
Andrea Sousa Fontes ◽  
Lafayette Dantas da Luz ◽  
Sandra Maria Conceição Pinheiro ◽  
...  
Keyword(s):  
Hydrological Regime ◽  
Flow Regulation ◽  
Hydrologic Regime ◽  
Local Conditions ◽  
Operating Rules ◽  
Hydrologic Variability ◽  
High Degree ◽  
The Impact ◽  
Semi Arid

ABSTRACT The flow regulation that results from the implantation of dams causes consequences to the river ecosystems due to the modification on the characteristics of the hydrologic regime. The investigation of these changes become relevant, mainly in semi-arid regions where there is a great amount of these hydraulic structures and lack of such analyzes. Considering the above, this paper aims to evaluate the Dundee Hydrological Regime Alteration Method (DHRAM) through the classification of the degree of impact of dams located on rivers Itapicuru, Paraguaçu and their tributaries, verifying the adequacy of its use to represent the semi-arid hydrologic regime. Thereby, the DHRAM was applied in three versions: considering the thresholds that define the scores to classify the degree of impact in its original set (accordingly to Black et al. (2005)); with the adjustment of those thresholds to local conditions; and, with the regrouping of variables and adjustment of thresholds. The results showed that the method in its original set is applicable to semi-arid rivers, however it tends to be very restrictive against the high natural hydrologic variability characteristic of these rivers, and it ends up pointing to a high degree of alteration for dams that are known for not causing a very siginifcant flow regulation. The DHRAM with the regrouping of variables and the adjustment of thresholds presented the classification that approached the most to the known characteristics of the studied dams, being useful for the evaluation of the impact of dams still in project, and also to guide the adoption of operating rules that minimize the most significant hydrologic alterations that are identified.

On Seigniorage, Operating Rules, and Dual Equilibria

1993 ◽  
Vol 108 (2) ◽  
pp. 543-550 ◽  
Author(s):  
K. Lee ◽  
R. A. Ratti
Keyword(s):  
Operating Rules

Identifying the functional form of operating rules for hydro–photovoltaic hybrid power systems

Energy ◽  
2021 ◽  
pp. 123027
Author(s):  
Yu Gong ◽  
Pan Liu ◽  
Bo Ming ◽  
Maoyuan Feng ◽  
Kangdi Huang ◽  
...  
Keyword(s):  
Power Systems ◽  
Functional Form ◽  
Hybrid Power Systems ◽  
Hybrid Power ◽  
Operating Rules

Le telecomunicazioni dagli anni Cinquanta agli anni Novanta. Tra concorrenza e armonizzazione: genesi di una nuova icona dell'Europa integrata

2009 ◽  
pp. 89-97
Author(s):  
Léonard Laborie
Keyword(s):  
Historical Perspective ◽  
Common Market ◽  
Telecommunications Networks ◽  
European Cooperation ◽  
Operating Rules ◽  
Telecommunications Sector ◽  
Long Time ◽  
Common Policy

- This article aims at placing in an historical perspective the changes that gave birth in the Eighties and Nineties to the contemporary "transnational and liberalized" European telecommunications landscape. Telecommunications networks are articulated around a triangle linking operators (services providers), manufacturers (gears providers) and regulators (providing operating rules). In Europe, this triangle formed strong national monopoly till the Eighties within each nation: a compartmentalized organisation highly contrasting with the idea and prospect of a common market. This landscape was swept away from the Eighties on, the telecommunications sector becoming an icon of an integrated and dynamic Europe, around a common policy combining technical harmonisation (the GSM standard for instance) and deregulation. This article addresses the questions of the origin, goals and stakeholders of a common policy for a long time impossible to achieve, redefined at several occasions, and, at the end, emblematic.Parole chiave: Telecomunicazioni, Cooperazione europea, Armonizzazione tecnica, CEPT, CEE, GSM Telecommunications, European cooperation, Technical Harmonization, CEPT, CEE, GSM

scholarly journals The Grand Renaissance Dam and prospects for cooperation on the Eastern Nile

Water Policy ◽  
2014 ◽  
Vol 16 (4) ◽  
pp. 595-608 ◽  
Author(s):  
Dale Whittington ◽  
John Waterbury ◽  
Marc Jeuland
Keyword(s):  
Water Resources ◽  
Trade Agreements ◽  
Economic Feasibility ◽  
Operating Rules ◽  
Power Trade

The escalation of tensions between Ethiopia and Egypt over the construction of the Grand Renaissance is at least partly based on a misunderstanding of the nature of the risks this dam poses to Egypt. There is a two-part, win–win deal that can defuse tensions between Egypt and Ethiopia. First, Ethiopia needs to agree with Egypt and Sudan on rules for filling the Grand Renaissance Dam (GRD) reservoir and on operating rules during periods of drought. Second, Egypt needs to acknowledge that Ethiopia has a right to develop its water resources infrastructure for the benefit of its people based on the principle of equitable use, and agree not to block the power trade agreements that Ethiopia needs with Sudan to make the GRD financially viable. Sudan has a big stake in Egyptian–Ethiopian reconciliation over the use of the Nile. Although Sudan's agricultural and hydropower interests now align with those of Ethiopia, there does not seem to be a formal agreement between Ethiopia and Sudan for the sale of hydropower from the GRD. Because the economic feasibility of the GRD and other Ethiopian hydropower projects will depend on such agreements, Sudan has leverage with both Ethiopia and Egypt to encourage this win–win deal.

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