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Search Results: 1 - 10 of 47307 matches for " hydro-information system "
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Hydro-information system for drought monitoring
Goci? Milan,Trajkovi? Slavisa
Facta Universitatis Series : Architecture and Civil Engineering , 2012, DOI: 10.2298/fuace1202209g
Abstract: Drought is a natural hazard caused by the variability in climate, which cannot be prevented. However, its effects can be reduced through management systems incorporating drought monitoring. The main aim of this paper is the presentation of information system for monitoring drought warning based on the model with optimal set of hydro-meteorological parameters: minimal number, availability of gauge data and spatial distribution of measuring locations. Monitoring the relevant hydro-meteorological parameters and creation of suitable forecast tools within a hydro-information system for monitoring drought warning would serve as a platform for decision making in drought effects reduction. Significance of this idea is in the substitution of complex climatological models. It requires time and maintenance investments with a practical method for estimation of drought duration and intensity which will satisfy the users' needs and will not require considerable economic investment. [Projekat Ministarstva nauke Republike Srbije, br. TR 37003: Development of hydro-information system for monitoring and early drought warning]
LOS SISTEMAS DE INFORMACIóN GEOGRáFICA COMO HERRAMIENTA DE APOYO EN LOS ESTUDIOS HIDROGEOLóGICOS DOS CASOS DE ESTUDIO EN AMéRICA LATINA: TWO CASE STUDIES IN LATIN AMERICA
Quiroz,Mauricio; Escobar,John; Martinez,Daniel; Betancur,Teresita; Massone,Hector;
Revista Ingenierías Universidad de Medellín , 2007,
Abstract: in underground water studies, a big amount of data is generated and compiled: these data should be jointly processed, correlated, and analyzed in order to look for relations and /or patterns through which appropriate conceptual and numerical models are defined for explaining, in a coherent way, hydro-geological functioning in a specific zone. geographic information systems (gis) must be considered as one of the basic tools of hydro-geologists, because they allow storing, analyzing, and visualizing data and information in an easy and dynamic way, as well as the analysis of their behavior in both spatial and temporal dimensions. however, in many cases, the use of gis in hydro-geological projects has been limited to both the elaboration of cartography of different hydro-geological units included in the study area and to the location of different measurements and parameters related to underground water resources, without taking advantage of their capabilities for the analysis of complex multivariate spatial phenomena. the present research presents two gis application examples in latin america which have helped in the modeling and pre-processing of the phenomena and the involved variables, in addition to the traditional identification of different essential characteristics of aquifers.
LOS SISTEMAS DE INFORMACIóN GEOGRáFICA COMO HERRAMIENTA DE APOYO EN LOS ESTUDIOS HIDROGEOLóGICOS DOS CASOS DE ESTUDIO EN AMéRICA LATINA: TWO CASE STUDIES IN LATIN AMERICA GEOGRAPHIC INFORMATION SYSTEMS AS A SUPPORTING TOOL IN HYDRO-GEOLOGICAL STUDIES
Mauricio Quiroz,John Escobar,Daniel Martinez,Teresita Betancur
Revista Ingenierías Universidad de Medellín , 2007,
Abstract: En los estudios de aguas subterráneas, se genera y recopila gran cantidad de datos, que necesariamente deben ser procesados y analizados de manera conjunta, buscando encontrar relaciones y/o patrones con los que se definen modelos conceptuales y numéricos adecuados para explicar de forma coherente el funcionamiento hidrogeológico de una zona específica. Acorde con lo anterior, los Sistemas de Información Geográfica (SIG), se plantean como una de las herramientas básicas del hidrogeólogo, ya que permiten de una manera fácil y dinámica, almacenar, analizar y visualizar datos e información, así como el análisis de su comportamiento en las dimensiones espacial y temporal. No obstante, la utilización de los SIG en los proyectos hidrogeológicos se ha limitado, en muchos casos, a la elaboración de la cartografía de las diferentes unidades hidrogeológicas incluidas dentro del área de estudio y la ubicación de diferentes mediciones y parámetros relacionados con el recurso hídrico subterráneo, en detrimento de sus capacidades para el análisis de fenómenos espaciales complejos en los cuales intervienen múltiples variables. El presente trabajo presenta dos ejemplos de aplicación en Latinoamérica en los que los sistemas de información geográfica han ayudado en la modelación y preprocesamiento de los fenómenos y variables involucradas, además de la tradicional identificación de las características esenciales de los acuíferos. In underground water studies, a big amount of data is generated and compiled: these data should be jointly processed, correlated, and analyzed in order to look for relations and /or patterns through which appropriate conceptual and numerical models are defined for explaining, in a coherent way, hydro-geological functioning in a specific zone. Geographic Information Systems (GIS) must be considered as one of the basic tools of hydro-geologists, because they allow storing, analyzing, and visualizing data and information in an easy and dynamic way, as well as the analysis of their behavior in both spatial and temporal dimensions. However, in many cases, the use of GIS in hydro-geological projects has been limited to both the elaboration of cartography of different hydro-geological units included in the study area and to the location of different measurements and parameters related to underground water resources, without taking advantage of their capabilities for the analysis of complex multivariate spatial phenomena. The present research presents two GIS application examples in Latin America which have helped in the modeling and pre-processing of t
Low-cost Remote Rain and Stream Data Acquisition System for Mapping of Potential Micro-Hydro Sites  [PDF]
R. C. Pallugna, A. B. Cultura, C. M. Gozon, N. R. Estoperez
Energy and Power Engineering (EPE) , 2013, DOI: 10.4236/epe.2013.54B011
Abstract: The stream and rain data acquisition system presented in this paper makes the mapping of hydro potentials in the region or of the country economically and practically possible. Moreover, it can also serve as a flood warning system.
鄱阳湖水文生态动态监测系统构建与探讨
Construction and Exploration of Ecolo-Hydrological Monitoring System in the Poyang Lake
 [PDF]

郭玉银, 王仕刚
Journal of Water Resources Research (JWRR) , 2014, DOI: 10.12677/JWRR.2014.36053
Abstract:
鄱阳湖是我国最大淡水湖泊,其湿地生态多样性倍受世界关注。鄱阳湖水文生态监测系统是逐步建设并完善的,本文在系统回顾了鄱阳湖水文水环境监测历程的基础上,分析了构建水文生态动态监测系统的必要性,较为详细地介绍了鄱阳湖水文生态监测系统的构建过程,探讨了监测系统的综合效益。
Poyang Lake is the largest freshwater lake in China and its wetland ecological diversity has at-tracted much attention all over the world. Hydro-ecological monitoring system in the Poyang Lake has been gradually built and improved. The necessity of establishing hydrolo-ecological dynamic monitoring system was analyzed based on systematical review of hydrological and water envi-ronment monitoring history of the Poyang Lake. The establishment processes and comprehensive benefits of hydro-ecological monitoring system of the Poyang Lake were introduced and discussed in details.
Feasibility Study of a Hydro PV Hybrid System Operating at a Dam for Water Supply in Southern Brazil  [PDF]
Luis E. Teixeira, Johan Caux, Alexandre Beluco, Ivo Bertoldo, José Ant?nio S. Louzada, Ricardo C. Eifler
Journal of Power and Energy Engineering (JPEE) , 2015, DOI: 10.4236/jpee.2015.39006
Abstract: Dams for water supply usually represent an untapped hydroelectric potential. It is a small energetic potential, in most situations, usually requiring a particular solution to be viable. The use of pumps as power turbines often represents an alternative that enables the power generation in hydraulic structures already in operation, as is the case of dams in water supply systems. This potential can be exploited in conjunction with the implementation of PV modules on the water surface, installed on floating structures, both operating in a hydro PV hybrid system. The floating structure can also contribute to reducing the evaporation of water and providing a small increase in hydroelectric power available. This paper presents a pre-feasibility study for implementation of a hydroelectric power plant and PV modules on floating structures in the reservoir formed by the dam of Val de Serra, in southern Brazil. The dam is operated to provide drinking water to about 60% of the population of the city of Santa Maria, in the state of Rio Grande do Sul, in southern Brazil. The pre-feasibility study conducted with Homer software, version Legacy, indicated that the hydroelectric plant with a capacity of 227 kW can operate together with 60 kW of PV modules. This combination will result (in one of the configurations considered) in an initial cost of USD$ 1715.83 per kW installed and a cost of energy of USD$ 0.059/kWh.
Does System 1 Process both Local and Nonlocal Information in Intuitive Judgment and Decision Making? Available Evidence and a Research Agenda Proposal  [PDF]
Patrizio Tressoldi
Psychology (PSYCH) , 2013, DOI: 10.4236/psych.2013.411114
Abstract:

This paper argues that System 1, (the mental processing system mainly involved in the processing of unconscious information) in contrast to System 2, (mainly involved in the processing of conscious information), processes not only local information conveyed by sensory organs, but also nonlocal ones, that is, those beyond the detection range of sensory organs. The striking similarities observed between the characteristics of local and nonlocal information processing by System 1, offer the possibility of using most of the experimental protocols used to investigate local information for the nonlocal information. Available evidence is presented and a research agenda is outlined that could raise fascinating questions and answer about the functioning of the human mind.

The Role of Human Resource Information System in the Process of Manpower Activities  [PDF]
Ama F. Karikari, Peter Agyekum Boateng, Evans O. N. D. Ocansey
American Journal of Industrial and Business Management (AJIBM) , 2015, DOI: 10.4236/ajibm.2015.56042
Abstract: The evolution of technology has encouraged organizations to use human resource information systems (HRIS). HRIS is perceived to contribute to the effectiveness of manpower activities (human resources planning) in organizations. This paper interviewed two HRIS managers in the hospitality industry in Greater Region (Ghana) to identify the benefits, contributions and the challenges of HRIS. It was revealed that HRIS identified unfilled positions, accurately analyzed each job position and its job title in the organization, providing insight into organizational training needs, selected the right persons to be trained at the right time, evaluated the effectiveness of training programs and made faster and better decisions about successor ranking. It was therefore concluded that HRIS played a major role in the management of human resources. Organizations should integrate HRIS with other organizational systems to facilitate speedily sharing of information and decision making.
A Tree Model for Identification of Threats as the First Stage of Risk Assessment in HIS  [PDF]
Ahmad Bakhtiyari Shahri, Zuraini Ismail
Journal of Information Security (JIS) , 2012, DOI: 10.4236/jis.2012.32020
Abstract: Security remains to be a critical issue in the safe operation of Information Systems (IS). Identifying the threats to IS may lead to an effective method for measuring security as the initial stage for risk management. Despite many attempts to classify threats to IS, new threats to Health Information Systems (HIS) remains a continual concern for system developers. The main aim of this paper is to present a research agenda of threats to HIS. A cohesive completeness study on the identification of possible threats on HIS was conducted. This study reveals more than 70 threats for HIS. They are classified into 30 common criteria. The abstraction was carried out using secondary data from various research databases. This work-in-progress study will proceed to the next stage of ranking the security threats for assessing risk in HIS. This classification of threats may provide some insights to both researchers and professionals, who are interested in conducting research in risk management of HIS security.
Solar Wind Hydro Hybrid Energy System Simulation
Solar Wind Hydro Hybrid Energy System Simulation,Subhash Y. Kamdi
International Journal of Soft Computing & Engineering , 2013,
Abstract: The importance of hybrid systems has grown as they appeared to be the right solution for a clean and distributed energy production. So that new implementations of hybrid systems require special attention on analysis and modeling. This paper deals theoretical study of hybrid systems, based on renewable energy is the availability of models, which can be used to study the behavior of hybrid systems and most important, software simulation environments. In this paper we present several models which can be used for the simulation purposes of hybrid power systems.
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