نتایج جستجو برای: dam monitoring

تعداد نتایج: 310955  

Journal: :Applied sciences 2021

A concrete dam is an important water-retaining hydraulic structure that stops or restricts the flow of water underground streams. It can be regarded as a constantly changing complex system. The deformation reflect its operation behaviors most directly among all effect quantities. However, due to change external environment, failure monitoring instruments, and existence human errors, obtained da...

2014
Ozcan Baris Citil Leyla Kalyoncu Oguzhan Kahraman

Total fatty acid composition of muscle lipids in some fish species (Cyprinus carpio (Işıklı Dam Lake), Tinca tinca (Işıklı Dam Lake), Scardinius erythrophthalmus (Işıklı Dam Lake), Cyprinus carpio (Karacaören Dam Lake), and Carassius carassius (Karacaören Dam Lake)) was determined by gas chromatography. Polyunsaturated fatty acids (PUFAs) of Cyprinus carpio (Işıklı Dam Lake) were found higher t...

2012
Y. Wang G. Lin Z. Hu

This paper proposes and validates a new formulation on the dynamic response of dam-reservoir system, including water compressibility, absorption of the boundary of the reservoir, the earthquake excitation from different directions and the radiation condition boundary at infinity. The impounded water is modeled by Scaled Boundary Finite Element Method, and discretization only at the boundary coi...

Journal: :Artif. Intell. Research 2012
Vahid Nourani Elnaz Sharghi Mohammad H. Aminfar

Piezometric heads in the core of Sattarkhan earthfill dam in Iran have been analyzed in this paper via Artificial Neural Network (ANN). Single and integrated ANN models were trained and verified using each piezometer’s data, and also the water levels on the up and downstream of the dam. Therefore, in the single ANN modeling a single ANN was developed for each piezometer, whereas in the integrat...

2012
B. Arzi

M.A. Ahlering, S. Hedges, A. Johnson, M. Tyson, S.G. Schuttler & L.S. Eggert Genetic diversity, social structure, and conservation value of the elephants of the Nakai Plateau, Lao PDR, based on noninvasive sampling Conservation Genetics 12 (2011) 413-422 Abstract. The Lao People’s Democratic Republic (PDR) may have the largest Asian elephant population in Indochina. However, elephants on Lao PD...

2008
Emilie Masse Corinne Curt Marc Le Goc

Forecasting dam behaviour is of paramount importance to avoid collapses. It consists of detecting and controlling deterioration mechanisms. This paper sets out to propose a multi model methodology to model complex dynamic systems, such as dams. It defines three models based on expert knowledge: a structural model, a functional model and a behavioural model. They are developed from the stories o...

Journal: :Environmental Modelling and Software 2008
Benoît Duchemin Philippe Maisongrande Gilles Boulet Iskander Benhadj

In this study we investigated the perspective offered by coupling a simple vegetation growth model and ground-based remotely-sensed data for the monitoring of wheat production. A simple model was developed to simulate the time courses of green leaf area index (GLAI), dry aboveground phytomass (DAM) and grain yield (GY). A comprehensive sensitivity analysis has allowed addressing the problem of ...

Alireza Karimzadeh, Mohammad Reza Aminizadeh Bazanjani

Agricultural droughts are droughts that affect the crop production or the ecology of a region. Ravar city that is located in margin of desert and the north of Kerman province is one of these areas. Due to the existence of enough underground water that entrance to desert and high evaporation to improving agricultural and cultivar activities, it needed to study the construction of underground dam...

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