Log in

Relevant bibliographies by topics / Theory hydro / Journal articles

To see the other types of publications on this topic, follow the link: Theory hydro.

Journal articles on the topic 'Theory hydro'

Author: Grafiati

Published: 28 May 2022

Last updated: 31 July 2025

Create a spot-on reference in APA, MLA, Chicago, Harvard, and other styles

Select a source type:

Consult the top 50 journal articles for your research on the topic 'Theory hydro.'

Next to every source in the list of references, there is an 'Add to bibliography' button. Press on it, and we will generate automatically the bibliographic reference to the chosen work in the citation style you need: APA, MLA, Harvard, Chicago, Vancouver, etc.

You can also download the full text of the academic publication as pdf and read online its abstract whenever available in the metadata.

Browse journal articles on a wide variety of disciplines and organise your bibliography correctly.

1

Chow, Jeremy, and Brandi Bushman. "Hydro-eroticism." English Language Notes 57, no. 1 (2019): 96–115. http://dx.doi.org/10.1215/00138282-7309710.

Full text

APA, Harvard, Vancouver, ISO, and other styles

2

Bicik, Josef, Zoran Kapelan, Christos Makropoulos, and Dragan A. Savić. "Pipe burst diagnostics using evidence theory." Journal of Hydroinformatics 13, no. 4 (2010): 596–608. http://dx.doi.org/10.2166/hydro.2010.201.

Full text

Abstract:

This paper presents a decision support methodology aimed at assisting Water Distribution System (WDS) operators in the timely location of pipe bursts. This will enable them to react more systematically and promptly. The information gathered from various data sources to help locate where a pipe burst might have occurred is frequently conflicting and imperfect. The methodology developed in this paper deals effectively with such information sources. The raw data collected in the field is first processed by means of several models, namely the pipe burst prediction model, the hydraulic model and th

APA, Harvard, Vancouver, ISO, and other styles

3

Monette, C., B. Nennemann, C. Seeley, A. Coutu, and H. Marmont. "Hydro-dynamic damping theory in flowing water." IOP Conference Series: Earth and Environmental Science 22, no. 3 (2014): 032044. http://dx.doi.org/10.1088/1755-1315/22/3/032044.

Full text

APA, Harvard, Vancouver, ISO, and other styles

4

Al-Muqdadi, Sameh W. H. "The Spiral of Escalating Water Conflict: The Theory of Hydro-Politics." Water 14, no. 21 (2022): 3466. http://dx.doi.org/10.3390/w14213466.

Full text

Abstract:

Using water to enforce a political agenda is a global concern for peacebuilding. Hence, understanding hydro-politics is essential when predicting possible water-based conflict scenarios between riparian countries. A structured theory covering most of the possible events involved in hydro-politics would help assess with a sufficient understanding the reasons and consequences of water conflict. This study proposed a comprehensive theory of hydro-politics, particularly those related to water impoundment and water control through upstream country dams, to identify the root causes of water conflict

APA, Harvard, Vancouver, ISO, and other styles

5

Yu, Tao, Qing Dong Yan, and Wei Wei. "Research on Efficient-Type Shifting Strategy of Construction Machinery with Hydro-Mechanical Transmission System." Applied Mechanics and Materials 66-68 (July 2011): 1055–60. http://dx.doi.org/10.4028/www.scientific.net/amm.66-68.1055.

Full text

Abstract:

Based on the theory of hydro-mechanical transmission system, a new kind of gear shifting control scheme to improve work efficiency of hydro-mechanical transmission system was designed. By describing the work principles of crucial components mathematically, the dynamic model of hydro-mechanical transmission was constructed according to modular modeling method. The proposed efficient type shifting strategy was embedded in aforementioned model to predict its performance. The simulation results indicated the proposed strategy could improve hydro-mechanical transmission efficiency.

APA, Harvard, Vancouver, ISO, and other styles

6

Hussain, Munawar, Munazza Khalid, and Sumeera Imran. "Hydro-Hegemony Framework: A study of the India Pakistan trans-boundary water competition and cooperation." Liberal Arts and Social Sciences International Journal (LASSIJ) 5, no. 1 (2021): 539–55. http://dx.doi.org/10.47264/idea.lassij/5.1.35.

Full text

Abstract:

After the independence of Pakistan and India in 1947, both the newly established states submerged in many tensions leading to competition in many areas. One such area is the hydro competition between the two closely bordering states. Within this context, India and Pakistan kicked by perianal security dilemma at all levels. India is diverting water from western rivers, which is not permissible for India in Indus Water Treaty (IWT). The Purpose of this study is to find out the reason/s that why India is behaving in this way? This is an applied research within the context of Hydro-Hegemony Framew

APA, Harvard, Vancouver, ISO, and other styles

7

Saleh, Saleh M. K. "Hydro-hegemony in the Nile Basin: a Sudanese perspective." Water Policy 10, S2 (2008): 29–49. http://dx.doi.org/10.2166/wp.2008.205.

Full text

Abstract:

This paper seeks to re-evaluate Sudan's position, power and policy in light of the hydro-hegemony theory. Sudan's unique transboundary hydrology, particularly in the south, and recent important developments in Sudanese affairs are of particular interest. The possibility of Sudan disintegrating into two sovereign states as per Sudan's Comprehensive Peace Agreement and Sudan's emergence as an oil-exporting country have provided new political events that serve as important factors to be used to analyse Sudan's position and power under the hydro-hegemony theory. Furthermore, Sudan's historical hyd

APA, Harvard, Vancouver, ISO, and other styles

8

Jiang, Jiping, Sijie Tang, Rentao Liu, Bellie Sivakumar, Xiaoye Wu, and Tianrui Pang. "A hybrid wavelet-Lyapunov exponent model for river water quality forecast." Journal of Hydroinformatics 23, no. 4 (2021): 864–78. http://dx.doi.org/10.2166/hydro.2021.023.

Full text

Abstract:

Abstract The use of spectral theory and chaos theory on river water quality modeling is reported in a very limited way. This study proposes a wavelet-maximum Lyapunov exponent (WMLE) hybrid model for river water quality dynamics, combining spectral theory and chaos theory. The methodology involves the following major steps: (1) use of wavelet transformation to filter the noisy signal in the water quality time series; (2) reconstruction of phase space to embed the water quality time series and determine the trajectory of the underlying dynamics; and (3) identification of the presence/absence of

APA, Harvard, Vancouver, ISO, and other styles

9

Hall, Jim W. "Handling uncertainty in the hydroinformatic process." Journal of Hydroinformatics 5, no. 4 (2003): 215–32. http://dx.doi.org/10.2166/hydro.2003.0019.

Full text

Abstract:

Hydroinformatics combines topics of modelling and decision-making, both of which have attracted a great deal of attention outside hydroinformatics from the point of view of uncertainty. Epistemic uncertainties are due to the inevitably incomplete evidence about the dependability of a model or set of competing models. Inherent uncertainties are due to the varying information content inherent in measurements or model predictions, be they probabilistic or fuzzy. Decision-making in management of the aquatic environment is, more often than not, a complex, discursive, multi-player process. The requi

APA, Harvard, Vancouver, ISO, and other styles

10

Hajebi, Saeed, Ehsan Roshani, Nicolás Cardozo, Stephen Barrett, Aidan Clarke, and Siobhán Clarke. "Water distribution network sectorisation using graph theory and many-objective optimisation." Journal of Hydroinformatics 18, no. 1 (2015): 77–95. http://dx.doi.org/10.2166/hydro.2015.144.

Full text

Abstract:

The water distribution network (WDN) sectorisation problem is characterised by structural and hydraulic requirements that make existing graph partitioning techniques inadequate to find a good solution. Specifically, sector isolation and direct access to at least one source for each sector are not addressed. This study proposes a method to address structural requirements of water network sectorisation with minimum negative impact on the hydraulic requirements. This paper first elaborates the sectorisation problem and discusses the requirements of water network sectorisation. Then, it proposes a

APA, Harvard, Vancouver, ISO, and other styles

11

Cao, Fu Yi, Zhi Li Zhou, and Hong Jie Zhao. "Design of Steering Wheel Control System of Tracked Vehicle of Hydro-Mechanical Differential Turning." Advanced Materials Research 472-475 (February 2012): 753–56. http://dx.doi.org/10.4028/www.scientific.net/amr.472-475.753.

Full text

Abstract:

The hydro-mechanical differential turning mechanism is the new type of double power flow turning mechanism of tracked vehicle. The hydraulic stepless speed regulation and the high efficiency of mechanical transmission are integrated into the turning mechanism. The stepless turning of tracked vehicle can be achieved. Basing on hydro-mechanical differential turning theory, the scheme design of steering wheel control system of tracked vehicle of hydro-mechanical differential turning is finished. By establishing model of steering wheel control system, its working stability and following characteri

APA, Harvard, Vancouver, ISO, and other styles

12

Yu, Furong, Wenxi Lu, Ping Li, Xin Xin, and Jun Li. "Dynamic optimal control for groundwater optimization management with covariates." Journal of Hydroinformatics 14, no. 2 (2011): 386–94. http://dx.doi.org/10.2166/hydro.2011.076.

Full text

Abstract:

It is well known that obtaining optimal solutions for groundwater management models with covariates is a challenging task, especially for dynamic planning and management. Here, a theory and method of dealing with mutual-feed joint variation in groundwater management models is described. Specifically, an equation expressing the inherent connection between covariates and groundwater level was developed. This equation was integrated into a mathematical simulation model of groundwater, after which a groundwater dynamic optimization management model with covariates was constructed using the state t

APA, Harvard, Vancouver, ISO, and other styles

13

Zhang, Sherong, Ting Liu, and Chao Wang. "Multi-source data fusion method for structural safety assessment of water diversion structures." Journal of Hydroinformatics 23, no. 2 (2021): 249–66. http://dx.doi.org/10.2166/hydro.2021.154.

Full text

Abstract:

Abstract Building safety assessment based on single sensor data has the problems of low reliability and high uncertainty. Therefore, this paper proposes a novel multi-source sensor data fusion method based on Improved Dempster–Shafer (D-S) evidence theory and Back Propagation Neural Network (BPNN). Before data fusion, the improved self-support function is adopted to preprocess the original data. The process of data fusion is divided into three steps: Firstly, the feature of the same kind of sensor data is extracted by the adaptive weighted average method as the input source of BPNN. Then, BPNN

APA, Harvard, Vancouver, ISO, and other styles

14

TANAHASHI, Takahiko. "Theory and Application of Thermo-Magneto Hydro Dynamics ( I )." Tetsu-to-Hagane 79, no. 2 (1993): N91—N102. http://dx.doi.org/10.2355/tetsutohagane1955.79.2_n91.

Full text

APA, Harvard, Vancouver, ISO, and other styles

15

TANAHASHI, Takahiko. "Theory and Application of Therlmo-Magneto Hydro Dynamics (II)." Tetsu-to-Hagane 79, no. 4 (1993): N263—N281. http://dx.doi.org/10.2355/tetsutohagane1955.79.4_n263.

Full text

APA, Harvard, Vancouver, ISO, and other styles

16

TANAHASHI, Takahiko. "Theory and Application of Thermo-Magneto Hydro Dynamics (III)." Tetsu-to-Hagane 79, no. 5 (1993): N327—N342. http://dx.doi.org/10.2355/tetsutohagane1955.79.5_n327.

Full text

APA, Harvard, Vancouver, ISO, and other styles

17

Le Verge-Serandour, Mathieu, and Hervé Turlier. "A hydro-osmotic coarsening theory of biological cavity formation." PLOS Computational Biology 17, no. 9 (2021): e1009333. http://dx.doi.org/10.1371/journal.pcbi.1009333.

Full text

Abstract:

Fluid-filled biological cavities are ubiquitous, but their collective dynamics has remained largely unexplored from a physical perspective. Based on experimental observations in early embryos, we propose a model where a cavity forms through the coarsening of myriad of pressurized micrometric lumens, that interact by ion and fluid exchanges through the intercellular space. Performing extensive numerical simulations, we find that hydraulic fluxes lead to a self-similar coarsening of lumens in time, characterized by a robust dynamic scaling exponent. The collective dynamics is primarily controlle

APA, Harvard, Vancouver, ISO, and other styles

18

Wolfe, Anita, and Helen A. Howes. "Measuring environmental performance: Theory and practice at ontario hydro." Environmental Quality Management 2, no. 4 (1993): 355–66. http://dx.doi.org/10.1002/tqem.3310020403.

Full text

APA, Harvard, Vancouver, ISO, and other styles

19

Alfonso, Leonardo, Liyan He, Arnold Lobbrecht, and Roland Price. "Information theory applied to evaluate the discharge monitoring network of the Magdalena River." Journal of Hydroinformatics 15, no. 1 (2012): 211–28. http://dx.doi.org/10.2166/hydro.2012.066.

Full text

Abstract:

The acquisition of good hydrologic information is an important issue in water management since it is the basis of decisions concerning the allocation of water resources to different users. However, sufficient data are often not available to describe the behaviour of such systems, especially in developing countries, where monitoring networks are inappropriately designed, poorly operated or are inadequate. Therefore, it is of interest to design and evaluate efficient monitoring networks. This paper presents two methodologies to design discharge monitoring networks in rivers using the concepts of

APA, Harvard, Vancouver, ISO, and other styles

20

Andik, Behnam, and Mohammad Hossein Niksokhan. "Waste load allocation under uncertainty using game theory approach and simulation-optimization process." Journal of Hydroinformatics 22, no. 4 (2020): 815–41. http://dx.doi.org/10.2166/hydro.2020.181.

Full text

Abstract:

Abstract This article aims to present a new methodology for waste load allocation (WLA) in a riverine system considering the uncertainty and achieve the lowest amount of inequity index, cost, and fuzzy risk of standard violation. To find a surface of undominated solutions, a new modified PAWN method, initially designed for sensitivity analysis, was developed and coupled with a simulation-optimization process using multi-objective particle swarm optimization (MOPSO) algorithm, to consider the uncertainty of all affecting variables and parameters by using their probability distribution. The prop

APA, Harvard, Vancouver, ISO, and other styles

21

D. Obozov, Alaybek, Ruslan A. Akparaliyev, Taalaybek T. Mederov, and Victor G. Krasnov. "Bi-rotor micro hydro power plant for energy supply to isolated consumers." International Journal of Engineering & Technology 7, no. 2.13 (2018): 173. http://dx.doi.org/10.14419/ijet.v7i2.13.11682.

Full text

Abstract:

This paper is dedicated to comparative analysis and description of a micro hydroelectric power plant with bi-rotor hydro generator. Based on the characteristics analysis, this paper describes a renewable energy source for a small watercourse; the feasibility of micro hydroelectric power plants with bi-rotor hydro generator is demonstrated. The features of their operation require in-depth research to substantiate parameters of such installations. This paper presents the analysis of the usage of micro hydroelectric solutions with bi-rotor hydro generator. The lattice theory problem was solved, w

APA, Harvard, Vancouver, ISO, and other styles

22

Mo, Li, Chao Wang, Peng Lu, and Jian Zhong Zhou. "Symbiosis Equilibrium Stable Range Analysis of Multi-Owner Cascade Hydro Plants." Applied Mechanics and Materials 409-410 (September 2013): 642–45. http://dx.doi.org/10.4028/www.scientific.net/amm.409-410.642.

Full text

Abstract:

It is a huge dynamic dimensional optimization question for the optimal operation of multi-owner cascade hydro plants constrained by water use competition and market strategies cooperation. The symmetry mutualism behavior patterns between multi-owner hydro plants are described accurately based on symbiosis theory. Then the mathematical model of the cascade symbiosis alliance in symmetry mutualisms pattern is built and the equilibrium solutions are presented. We discuss the symbiosis equilibrium stability range of multi-owner cascade hydro plants. Finally, simulation results obtained demonstrate

APA, Harvard, Vancouver, ISO, and other styles

23

Liao, Zhong, and Bin Yuan Ye. "Adaptive Inverse Control of Hydro Electric Unit Based on Wavelet Neural Networks." Advanced Materials Research 591-593 (November 2012): 1200–1203. http://dx.doi.org/10.4028/www.scientific.net/amr.591-593.1200.

Full text

Abstract:

Due to the nonlinear, time-variable and non-minimum phase character of hydro electric unit system integrated with water, motor and power, a new adaptive inverse control method of hydro electric unit based on the function approximation ability of the wavelet analysis and the learning characteristic of neural network is presented. The algorithm and formulas and method of adaptive inverse control is studied. It approximates the model and its inversion of hydro electric unit by wavelet neural networks(WNN), and then through constructing an aim function of broad sense, which is effective to the non

APA, Harvard, Vancouver, ISO, and other styles

24

Shin, Sangmin, and Heekyung Park. "Achieving cost-efficient diversification of water infrastructure system against uncertainty using modern portfolio theory." Journal of Hydroinformatics 20, no. 3 (2018): 739–50. http://dx.doi.org/10.2166/hydro.2018.240.

Full text

Abstract:

Abstract Recent water-related disasters have shown that not all disrupted events are prevented with water infrastructure systems and current water systems are becoming more vulnerable to disruptions due to the high uncertainty of disrupted events. Many scholars in various fields suggest diversification in the system as a way to respond to the uncertainty. In the real world, however, it is difficult to maximize its use, especially with water infrastructure, due to high costs and incomplete assessment methods. Thus this study attempts to develop a method to quantify cost-effectiveness of diversi

APA, Harvard, Vancouver, ISO, and other styles

25

Chen, Qing Zhang, Shuo Jin Fang, and Wu Mei Zhang. "Development of a Hydropower Hydro Monitoring System." Key Engineering Materials 439-440 (June 2010): 263–68. http://dx.doi.org/10.4028/www.scientific.net/kem.439-440.263.

Full text

Abstract:

Hydropower station is one of key energy construction projects in china. The hydro-mechanical component is one of the core parts of the hydropower station. Therefore, the importance of hydro-condition monitoring becomes even more conspicuous in hydropower station. In this present study, the hardware of hydropower station hydraulic monitoring system was re-designed and integrated through researching hydro-determination theory and method of the hydropower station, using ADAM modules; At the same time, by using development tool C++ and assembly language, a 16-channel data acquisition and visualiza

APA, Harvard, Vancouver, ISO, and other styles

26

Huang, Faming, Jinsong Huang, Shui-Hua Jiang, and Chuangbing Zhou. "Prediction of groundwater levels using evidence of chaos and support vector machine." Journal of Hydroinformatics 19, no. 4 (2017): 586–606. http://dx.doi.org/10.2166/hydro.2017.102.

Full text

Abstract:

Many nonlinear models have been proposed to forecast groundwater level. However, the evidence of chaos in groundwater levels in landslide has not been explored. In addition, linear correlation analyses are used to determine the input and output variables for the nonlinear models. Linear correlation analyses are unable to capture the nonlinear relationships between the input and output variables. This paper proposes to use chaos theory to select the input and output variables for nonlinear models. The nonlinear model is constructed based on support vector machine (SVM). The parameters of SVM ar

APA, Harvard, Vancouver, ISO, and other styles

27

Campbell, Enrique, Joaquín Izquierdo, Idel Montalvo, Amilkar Ilaya-Ayza, Rafael Pérez-García, and Mario Tavera. "A flexible methodology to sectorize water supply networks based on social network theory concepts and multi-objective optimization." Journal of Hydroinformatics 18, no. 1 (2015): 62–76. http://dx.doi.org/10.2166/hydro.2015.146.

Full text

Abstract:

A novel methodology to sectorize water supply networks (WSNs) depending on a main transmission line is presented in this paper. The methodology is based on concepts derived from the social network theory and graph theory (namely, community detection and shortest path respectively); and also on a multi-objective optimization process by means of agent swarm optimization (ASO). A series of energy, operative, and economic criteria are optimized in this process. The core idea is to form sectors over the distribution network based on communities found using a community detection algorithm (Walktrap)

APA, Harvard, Vancouver, ISO, and other styles

28

Tieu, A. K. "Hydrodynamic Thrust Bearings: Theory and Experiment." Journal of Tribology 113, no. 3 (1991): 633–38. http://dx.doi.org/10.1115/1.2920671.

Full text

Abstract:

In this paper results from experimental studies and computer simulation of hydro-dynamic tilting thrust bearings are presented. The bearing performance in terms of outlet film thickness, friction coefficient, and bearing temperature was measured in a high speed thrust bearing test rig. The numerical simulation involves the solution of the generalized Reynolds equation and the energy equation, which considers thermal effects on the oil viscosity and the squeezing of the oil film.

APA, Harvard, Vancouver, ISO, and other styles

29

Wang, Yan, Hong Wu Zhang, Rui Gao, Xiang Dong Wang, and Ling Qiang Yang. "Relibility Analysis of Hydrostructures Concrete Members." Advanced Materials Research 702 (May 2013): 11–14. http://dx.doi.org/10.4028/www.scientific.net/amr.702.11.

Full text

Abstract:

The failure process of hydro structures concrete structure and time and space has stochastic relation. The durability failure mechanism, durability failure type and durability failure mode were presented in the paper which is different from caviling engineering. The relation of durability and resisting ability was studied. Based on credibility theory, service-life of hydro structure concrete member was predicted. and the mend measures to improve durability was put forward.

APA, Harvard, Vancouver, ISO, and other styles

30

Moyne, Christian, and Márcio A. Murad. "Macroscale modeling of cartilage: mixture theory versus homogenization." Biorheology: The Official Journal of the International Society of Biorheology 41, no. 3-4 (2004): 215–22. http://dx.doi.org/10.1177/0006355x2004041003004006.

Full text

Abstract:

The equations governing the electro‐chemo‐hydro‐mechanical processes in cartilage are derived using the periodic homogenization technique. First the equations at the microscale are recalled. Then the homogenization technique is applied to propagate the physics to the macroscale. The results of this work and of the thermodynamical approach used by various authors are finally compared.

APA, Harvard, Vancouver, ISO, and other styles

31

Gong, RuZhi, HongJie Wang, LiXia Chen, DeYou Li, HaoChun Zhang, and XianZhu Wei. "Application of entropy production theory to hydro-turbine hydraulic analysis." Science China Technological Sciences 56, no. 7 (2013): 1636–43. http://dx.doi.org/10.1007/s11431-013-5229-y.

Full text

APA, Harvard, Vancouver, ISO, and other styles

32

Zeitoun, Mark, and J. A. Allan. "Applying hegemony and power theory to transboundary water analysis." Water Policy 10, S2 (2008): 3–12. http://dx.doi.org/10.2166/wp.2008.203.

Full text

Abstract:

This paper introduces the basic concepts of hydro-hegemony which are employed in the analysis of the contributors of this special issue. It emphasises the roles of hegemony, power and political–economy processes in shaping international transboundary water relations. Central to the analysis is Lukes’ concept of the three dimensions of power and Gramscian notions of hegemony (see S. Lukes, Power: A Radical View, 2005). Hegemony depends on the skilful use of hard and soft forms of power, between formally equal parties such as nation states. Hydro-hegemony is hegemony active in international tran

APA, Harvard, Vancouver, ISO, and other styles

33

Schulz, Karsten, and Bernd Huwe. "Uncertainty and sensitivity analysis of water transport modelling in a layered soil profile using fuzzy set theory." Journal of Hydroinformatics 1, no. 2 (1999): 127–38. http://dx.doi.org/10.2166/hydro.1999.0011.

Full text

Abstract:

A methodology based on fuzzy set theory is presented to express imprecision of input data in a non-probabilitic sense. Imprecision may originate from indirect measurements, estimation routines, subjective interpretation, and expert judgement of available information. A numerical finite difference solution scheme was chosen to solve one-dimensional steady-state water flow in the unsaturated zone of a layered soil profile. To extend the solution algorithm to operate with fuzzy soil-hydraulic properties and boundary conditions, it is necessary to incorporate the scheme into a nonlinear optimisati

APA, Harvard, Vancouver, ISO, and other styles

34

Liu, Jingkai, Yaan Hu, Zhonghua Li, and Shu Xue. "Risk Analysis and Optimization of Water Surface Deviation from Shafts in the Filling–Emptying System of a Mega-Scale Hydro-Floating Ship Lift." Water 13, no. 10 (2021): 1377. http://dx.doi.org/10.3390/w13101377.

Full text

Abstract:

Hydro-floating ship lifts are a milestone in the field of high dam navigation. In order to ensure the running safety of a hydro-floating ship lift, the effective integration of a numerical simulation method and cloud model theory was carried out to deal with the hydrodynamic risks presented by water surface deviations from the shafts in the filling–emptying system such as a lock. In this study, the average values of water surface deviation from the shafts were 0.2, 0.22 and 0.24 m, through numerical simulation on a similar hydro-floating ship lift at the lifting heights of 80, 100 and 120 m, r

APA, Harvard, Vancouver, ISO, and other styles

35

Wu, Chong, Tong Xu, Shenhao Yang, et al. "Gas−Hydro Coordinated Peaking Considering Source-Load Uncertainty and Deep Peaking." Energies 18, no. 5 (2025): 1234. https://doi.org/10.3390/en18051234.

Full text

Abstract:

Considering the power demand in high-altitude special environmental areas and the peak-regulation issues in the power system caused by the uncertainties associated with wind and photovoltaic power as well as load, a gas–hydro coordinated peak-shaving method that considers source-load uncertainty is proposed. Firstly, based on the regulation-related characteristics of hydropower and gas power, a gas−hydro coordinated operation mode is proposed. Secondly, the system operational risk caused by source-load uncertainty is quantified based on the Conditional Value-at-Risk theory. Then, the cost of d

APA, Harvard, Vancouver, ISO, and other styles

36

Zhang, Liqin, Jun XIE, Xingying CHEN, Yongsheng Zhan, and Lv Zhou. "Cooperative Game-Based Synergistic Gains Allocation Methods for Wind-Solar-Hydro Hybrid Generation System with Cascade Hydropower." Energies 13, no. 15 (2020): 3890. http://dx.doi.org/10.3390/en13153890.

Full text

Abstract:

In order to encourage hybrid generation of multiple wind/solar/hydro power stakeholders, synergistic gains from hybrid generation should be allocated fairly, efficiently and reasonably to all power stakeholders. This paper explores how cooperative game theory resolves conflicts among multiple wind/solar/hydro power stakeholders. Elaborate allocation processes of the nucleolus, Shapley value and MCRS methods are presented in resolve synergistic gains allocation problems of wind–solar–hydro hybrid generation system with cascade hydropower. By analyzing properties such as existence, uniqueness an

APA, Harvard, Vancouver, ISO, and other styles

37

Nair, Sukanya J., and K. Sasikumar. "Fuzzy reliability-based optimization of a hydropower reservoir." Journal of Hydroinformatics 21, no. 2 (2019): 308–17. http://dx.doi.org/10.2166/hydro.2019.078.

Full text

Abstract:

Abstract Reservoir operation modeling and optimization are inevitable components of water resources planning and management. Determination of reservoir operating policy is a multi-stage decision-making problem characterized by uncertainty. Uncertainty in inflows and power demands lead to varying degrees of the working of a reservoir from one period to another. This transition, being ambiguous in nature, can be addressed in a fuzzy framework. The different working states of the reservoir are described as fuzzy states. Based on the degree of success in meeting the power demand and randomness ass

APA, Harvard, Vancouver, ISO, and other styles

38

Gao, Hong Mei, Yong Wei Lan, Yan Lin Zhao, Jie Ma, Bing Liang, and Ying Zhao. "Studies on Coupled Model of Seepage Field and Temperature Field and Stress Field." Applied Mechanics and Materials 477-478 (December 2013): 883–87. http://dx.doi.org/10.4028/www.scientific.net/amm.477-478.883.

Full text

Abstract:

Numerical model of thermo-hydro-mechanical coupling processes of radioactive waste during the long-time disposal is established with the multi-fields coupling theory, based on the theory of continuum mechanics, thermo elastic material mechanics, and considered the influence of the variation of water viscosity due to temperature variation on permeability of pore water. The whole process of excavation,heating phase and cooling phase have been simulated in the calculation;and the calculated results are analyzed. It indicates that the anisotropy of thermo-hydro-mechanical behavior of the argillite

APA, Harvard, Vancouver, ISO, and other styles

39

Ma, Jie. "Studies on Coupled Thermo-Hydro-Mechanical Model of Hot Rock." Applied Mechanics and Materials 507 (January 2014): 864–68. http://dx.doi.org/10.4028/www.scientific.net/amm.507.864.

Full text

Abstract:

Numerical model of thermo-hydro-mechanical coupling processes of radioactive waste during the long-time disposal is established with the multi-fields coupling theory, based on the theory of continuum mechanics, thermo elastic material mechanics, and considered the influence of the variation of water viscosity due to temperature variation on permeability of pore water. The whole process of excavation，heating phase and cooling phase have been simulated in the calculation；and the calculated results are analyzed. It indicates that the anisotropy of thermo-hydro-mechanical behavior of the argillite

APA, Harvard, Vancouver, ISO, and other styles

40

Cheng, Kun, Shuai Wei, Qiang Fu, Wei Pei, and Tianxiao Li. "Adaptive management of water resources based on an advanced entropy method to quantify agent information." Journal of Hydroinformatics 21, no. 3 (2019): 381–96. http://dx.doi.org/10.2166/hydro.2019.007.

Full text

Abstract:

Abstract Adaptive management is currently an important method to optimize the management of complex water resources systems. Regional water resources adaptive management was conducted based on the advanced theory of a complex system multi-agent model; the state of an agent was tracked and modified by information entropy theory, which was improved by using individual standard deviations. With the goal of optimizing the adaptation of each agent of the region, water resources in the major grain production area of China were managed under the constraints of the total annual available water resourc

APA, Harvard, Vancouver, ISO, and other styles

41

Yang, Tianyu, Bin Wang, and Peng Chen. "Design of a Finite-Time Terminal Sliding Mode Controller for a Nonlinear Hydro-Turbine Governing System." Energies 13, no. 3 (2020): 634. http://dx.doi.org/10.3390/en13030634.

Full text

Abstract:

We focus on the finite-time control of a hydro-turbine governing system (HGS) in this paper. First, the nonlinear mathematical model of the hydro-turbine governing system is presented and is consistent with the actual project. Then, based on the finite-time stability theory and terminal sliding mode scheme, a new finite-time terminal sliding mode controller is designed for the hydro-turbine governing system and a detailed mathematical derivation is given. Only three vector controllers are required, which is less than the HGS equation dimensions and is easy to implement accordingly. Furthermore

APA, Harvard, Vancouver, ISO, and other styles

42

Zhao, Youqun, Han Xu, Yaoji Deng, and Qiuwei Wang. "Multi-objective optimization for ride comfort of hydro-pneumatic suspension vehicles with mechanical elastic wheel." Proceedings of the Institution of Mechanical Engineers, Part D: Journal of Automobile Engineering 233, no. 11 (2018): 2714–28. http://dx.doi.org/10.1177/0954407018804909.

Full text

Abstract:

The new mechanical elastic wheel has the following advantages: non-pneumatic, anti-puncture, and explosion-proof. However, the larger radial stiffness is detrimental to vehicle ride comfort. To solve this problem, an integrated design method of hydro-pneumatic suspension matching mechanical elastic wheel is proposed in this paper. First, the nonlinear radial stiffness of mechanical elastic wheel is fitted by static loading experiment. Next, the mathematical model of hydro-pneumatic suspension is derived. Then, a half-car model, integrating hydro-pneumatic suspension and mechanical elastic whee

APA, Harvard, Vancouver, ISO, and other styles

43

Sauhats, Antans, Renata Varfolomejeva, Inga Umbrasko, and Hasan Coban. "The Small Hydropower Plant Income Maximization Using Games Theory." International Journal of Economics and Statistics 9 (March 23, 2021): 14–19. http://dx.doi.org/10.46300/9103.2021.9.3.

Full text

Abstract:

This paper is devoted to the consideration of case of the use of small rivers energy, the current system of support relevant projects, its drawbacks and opportunities to remove them. Cooperative game theory approach is used for analysis of regime management of the small-scale hydro power plant (SHPP). Technical and economical aspects of the issue are observed. The obtained results demonstrate the validity of the cooperation for obtaining additional income.

APA, Harvard, Vancouver, ISO, and other styles

44

Zhou, Zhi Li, F. Y. Cao, and L. Y. Xu. "Dynamic Simulation of Hydro-Mechanical Differential Turning Hydraulic System of Tracked Vehicle." Materials Science Forum 628-629 (August 2009): 77–82. http://dx.doi.org/10.4028/www.scientific.net/msf.628-629.77.

Full text

Abstract:

Being an important subsystem of hydro-mechanical differential turning system of tracked vehicle, the turning hydraulic system plays the crucial role on turning and running performance of tracked vehicle. The mathematical model and simulated model of turning hydraulic system are established. The dynamic performance of different running parameters and structural parameters of certain tracked vehicle is simulated and analyzed adopting Runge-Kutta four, five step arithmetic in this paper. The theory basis of system optimization design, parameters match and performance analysis of hydro-mechanical

APA, Harvard, Vancouver, ISO, and other styles

45

García Mazo, Claudia María, Yris Olaya, and Sergio Botero Botero. "Investment in renewable energy considering game theory and wind-hydro diversification." Energy Strategy Reviews 28 (March 2020): 100447. http://dx.doi.org/10.1016/j.esr.2020.100447.

Full text

APA, Harvard, Vancouver, ISO, and other styles

46

Wang, Ming-dong, Wen-xia Su, and Xian-lin Liu. "Grey extra-deleting theory-based governor control for hydro-generator unit." Journal of Engineering 2015, no. 10 (2015): 318–21. http://dx.doi.org/10.1049/joe.2015.0043.

Full text

APA, Harvard, Vancouver, ISO, and other styles

47

Garg, Jitendra Kumar, Anita Khosla, and Nizamuddin Hakimuddin. "AGC of a multi sources power system with natural choice of power plants." EMITTER International Journal of Engineering Technology 7, no. 1 (2019): 105–28. http://dx.doi.org/10.24003/emitter.v7i1.342.

Full text

Abstract:

This paper presents an application of optimal control theory in multi sources power system by considering natural choice of power plants participating in automatic generation control (AGC) scheme. However, for successful operation of large power system, the natural choices of generation suitable for AGC system are hydro and thermal power plants since gas and nuclear power plants are rarely participates in the AGC scheme. Therefore, this work presents design and implementation of proportional integral (PI) structured optimal AGC controller in the presence of hydro and thermal power plants by us

APA, Harvard, Vancouver, ISO, and other styles

48

Loodin, Najibullah, and Jeroen Warner. "A Review of Hydro-Hegemonic Dynamics on the Transboundary Harirud River Basin: 2001–Present." Water 14, no. 21 (2022): 3442. http://dx.doi.org/10.3390/w14213442.

Full text

Abstract:

In the absence of a transboundary water agreement between riparian states of Harirud River Basin, downstream states—Iran and Turkmenistan—have adopted a resource-capturing policy through the construction of Doosti Dam in the lower Harirud River Basin when the upstream state—Afghanistan—was engaged in social unrest during 1980s to the early 2000s. While Doosti Dam has a high potential of supplying water for major cities in Turkmenistan and Iran, its flow has declined due to climate changes and drought in the basin. The paper found that Iran accuses Afghanistan of blocking the flow of water thro

APA, Harvard, Vancouver, ISO, and other styles

49

Yang, Guangchang, Yang Liu, and Peipei Chen. "Modeling the Hydro-Mechanical Coupling Behavior of Unsaturated Geotechnical Materials Based on Non-Equilibrium Thermodynamic Theory." Applied Sciences 10, no. 16 (2020): 5668. http://dx.doi.org/10.3390/app10165668.

Full text

Abstract:

A new hydro-mechanical model for unsaturated geotechnical materials based on the non-equilibrium thermodynamic theory is presented in this paper. Common concepts, such as yield criterion and flow rules, are not involved in the constitutive relationships, and are replaced with the thermodynamic concepts of granular temperature, granular entropy, migration coefficients, and energy functions. The dissipation system and the migration coefficient relationships are theoretically determined, and the constitutive relations of non-elastic deformation and granular temperature are obtained by dissipation

APA, Harvard, Vancouver, ISO, and other styles

50

Milašinović, Miloš, Dušan Prodanović, Budo Zindović, Boban Stojanović, and Nikola Milivojević. "Control theory-based data assimilation for hydraulic models as a decision support tool for hydropower systems: sequential, multi-metric tuning of the controllers." Journal of Hydroinformatics 23, no. 3 (2021): 500–516. http://dx.doi.org/10.2166/hydro.2021.078.

Full text

Abstract:

Abstract Increasing renewable energy usage puts extra pressure on decision-making in river hydropower systems. Decision support tools are used for near-future forecasting of the water available. Model-driven forecasting used for river state estimation often provides bad results due to numerous uncertainties. False inflows and poor initialization are some of the uncertainty sources. To overcome this, standard data assimilation (DA) techniques (e.g., ensemble Kalman filter) are used, which are not always applicable in real systems. This paper presents further insight into the novel, tailor-made

APA, Harvard, Vancouver, ISO, and other styles

We offer discounts on all premium plans for authors whose works are included in thematic literature selections. Contact us to get a unique promo code!