نتایج جستجو برای: different hydro

تعداد نتایج: 1773739  

2015
Marco Casini

In addition to photovoltaic and wind systems, nowadays in-pipe water to wire power systems are becoming particularly interesting for the integration of renewable resources at urban and building scale because of the potential to harness clean energy from excess head pressure in urban and domestic water pipelines. Able to operate across a wide range of head and flow conditions, these particular m...

2008
E. R. Gilbert H. Li D. A. Emmerson K. E. Webb E. A. Wong N. Sriperm P. B. Tillman G. M. Pesti M. E. Wetzstein

The intestinal peptide transporter, PepT1, is known to be regulated by a variety of dietary factors, including protein quantity, protein quality, and feed intake. The objective of this experiment was to determine the effect of dietary protein composition on mRNA abundance of chicken PepT1. From day of hatch to day 8, chicks from 2 genetic lines (A and B, selected under different dietary conditi...

2011
Naimul Hasan Omveer Singh

43 ABSTRACT An optimal fuzzy AGC regulator design based on GASA tuning technique for interconnected power system is proposed in this paper. The investigations with the GASA tuned optimal fuzzy regulator are carried out on a two area interconnected power system consisting of power plants with different characteristics. Power system area-1 is having plants with reheat thermal turbines whereas are...

2017
Raju Ram Bajya Rajshree Taparia

ABSRACT Sliding mode control has received much attention due to its major advantages such as guaranteed stability, robustness against parameter variations, fast dynamic response and simplicity in the implementation and therefore has been widely applied to control nonlinear systems. This paper discus the sliding mode control technic for controlling hydropower system and generalized a model which...

2011
S. H. Rizkalla D. Polyzois

Woodc:n poles are popular structural elements currently used by Manitoba Hydro for distribution lines and transmission towers. In recent years, a considerable number of such poles have failed duc to heavy build-up of ice on the lines. These failures may be attributed to the accuracy or reliability of the design methods and/or to the lack of adequate experimental information to evaluate the crit...

Journal: :CEJOR 2013
Gábor Regos

The aim of the paper is to compare the general risk of the four most important energy chains (coal, nuclear, gas, hydro). Two different multicriteria decision models, the Analytic Hierarchy Process and the PROMETHEE method have been applied. The chosen risk criteria are: severe accidents, terrorism, environmental and health risks, risk of price changes. The first part of the paper discusses the...

2006
M. Gordan A. Georgakis

The visual examination of downstream faces of hydro dams is an important component in their monitoring. Few computer vision algorithms exist for this task. Some of them aim to detect and evaluate concrete cracks using edge detection. Other problems can also affect hydro-dams, as roughness, scratches, and can lead in time to surface deterioration. These are not currently reliably addressed by im...

Journal: :Micromachines 2016
Yongkun Wang Wenchao Tian Jianqiang Xie Yan Liu

A series of thermoelectric responsive shape memory hydro-epoxy (H-EP) composites filled with different contents of graphene were developed and characterized. Compared with traditional actuation materials, these novel shape memory composites exhibit attractive properties, such as light weight, large deformation, good processability and high response speed, making them good candidates for actuato...

Journal: :Journal of environmental management 2008
Dabo Guan Klaus Hubacek

Water is a critical issue in China for a variety of reasons. China is poor of water resources with 2,300 m(3) of per capita availability, which is less than 13 of the world average. This is exacerbated by regional differences; e.g. North China's water availability is only about 271 m(3) of per capita value, which is only 125 of the world's average. Furthermore, pollution contributes to water sc...

2008
Philip A. Fay

[i] Ecosystems driven by hydro-climatic fluctuations at different time scales can be interpreted as non-equilibrium dynamical systems. Here we explore the propagation of daily and interannual rainfall fluctuations through the soilplant system using the theory of superstatistics. With the help of simplified stochastic models of rainfall, we show how interactions of daily and interannual rainfall...

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