Edilberto Guevara- Prof. Dr. MSc. PE
- Managing Director at University of Carabobo
Edilberto Guevara
- Prof. Dr. MSc. PE
- Managing Director at University of Carabobo
About
57
Publications
62,784
Reads
How we measure 'reads'
A 'read' is counted each time someone views a publication summary (such as the title, abstract, and list of authors), clicks on a figure, or views or downloads the full-text. Learn more
310
Citations
Introduction
Current institution
Publications
Publications (57)
En este estudio se evaluaron los modelos de prestación de los servicios de agua potable y saneamiento para el Municipio San Joaquín, Estado Carabobo, Venezuela, representado en el Instituto Autónomo Municipal de Aguas de San Joaquín (IAGUASANJO) a través de tres índices de gestión propuestos de manera integrada para el agua potable y el saneamiento...
This paper deals about a proposal for the remediation of soils and groundwater contaminated with hydrocarbons in a tropical aquifer, due to leaks from underground tanks in a gas station in Venezuela. The hydrocarbon measured values such as TPHs (Total Petroleum Hydrocarbons) and BTEX (Benzene, Toluene, Ethylbenzene, Xylenes) in soils and ground wat...
This paper deals with a proposal for the remediation of soils and groundwater contaminated with hydrocarbons in a tropical aquifer, due to leaks from underground tanks in a gas station in Venezuela. The hydrocarbon measured values such as TPHs (Total Petroleum Hydrocarbons) and BTEX (Benzene, Toluene, Ethylbenzene, Xylenes) in soils and groundwater...
El objetivo de esta investigación es proponer la noción de la pobreza, la desigualdad social y la privación, como elementos que causan vulnerabilidad a los desastres, demostrando la forma en la que la construcción social del riesgo se relaciona directamente con las políticas públicas nacionales de acceso a viviendas, empleos, y ordenamiento territo...
In this paper, three novelties are presented, the type of reactor, design models, and design experimental factors. The upflow anaerobic filters are separated into two and three phases identified as DI-FAFS and TRI-FAFS (abbreviation in Spanish). The second novelty consists of modifying and combining the traditional models for trickling filter to cr...
In this study, a novel method for forecasting the flood risk in a tropical country is proposed called as CIHAM-UC-FFR. The method is based on the rainfall-runoff process. The CIHAM-UC-FFR method consists of three stages: (1) calibration and validation for the effective precipitation model, called CIHAM-UC-EP model, (2) calibration of forecasting mo...
The aim of this paper is to develop a geostatistical model for the surface water balance (SWB) under variable soil moisture conditions of the Pao river basin, Venezuela. The novelty of the research consists in identifying a statistical model that will predict the spatial variability of hydro-meteorological data in the basin. A series of meteorologi...
En esta investigación aborda la formulación de un plan de gestión sustentable de riesgo de inundación durante el periodo 2015-2017 en el Municipio Naguanagua, Carabobo, Venezuela, con el objetivo de mejorar la capacidad de preparación y de respuesta ante situaciones de desastres en las comunidades afectadas por las inundaciones. Su novedad se basa...
This study proposes a method for estimating the flood risk in a tropical basin. The novelty consists of using two dynamics variables represented by the precipitation and the land use and land cover (LULC) to obtain the effective rainfall and its exceedance probability. The flood risk is determined by using deterministic depending on the exceedance...
In this paper, modified dynamic models of those used for traditional activated-sludge systems are proposed by adapting the oxic-anoxic phases to the sequencing batch reactor (SBR), where the nitrification-denitrification biochemical processes occur. The modification of Activated-Sludge Model 1 (ASM 1) to adapt to the operation performance of a sequ...
This paper proposes a hybrid model identified as krigging ordinary-forecasting models that contributes to predict the spatio-temporal of land use and land cover (LULC) changes using a unique predictor variable represented by the surface reflectance derived of satellite images, transformed in the principal component 1 (PC1). The tools used allow kno...
En años recientes, las sequías en el territorio venezolano han emergido como una amenaza para los sectores hídrico-urbano, hídrico-industrial, agrícola e hidroeléctrico. Para mejorar la comprensión sobre este fenómeno, se analizó la tendencia de las sequías locales en el territorio venezolano durante el periodo 1960-2005 usando el Índice de Precipi...
Severe droughts have caused serious impact on water supply and agriculture in São Francisco River Basin (SFRB), Brazil, especially during the rainy season. Observational evidence suggests that droughts in this region could be driven by some large-scale ocean-atmospheric patterns. This study provides a general description of linkage between the ocea...
En Venezuela, la cuenca del río Caroní es la más importante para el sector hidroeléctrico, pues satisface el 65 % de la demanda total del país y genera el 90 % de la energía hidroeléctrica. Por tanto, la incidencia de sequías prolongadas sobre esta región causa profundos impactos socioeconómicos a escala nacional. Las características de las sequías...
Since 2000 the Venezuelan territory has been affected by dry spells which have caused a significant depletion in water reserves from large reservoirs. The most important characteristics of severe droughts that affected the drain basins of 32 large reservoirs over the 1960-2005 period were evaluated. Standardized precipitation index was used to meas...
La cuenca del Lago de Valencia (CELV) es la cuenca endorreica de mayor tamaño en Venezuela. Por su elevada densidad poblacional e industrial es susceptible a los extremos pluviométricos. Se sabe que el fenómeno ENOA (El Niño-Oscilación Austral) modula las lluvias en el territorio venezolano, pero no se ha explorado su incidencia en detalle en la CE...
El nordeste de Brasil (NEB) es una región afectada por sequías que causan severos impactos sobre los sectores agrícola, hidroeléctrico y de abastecimiento hídrico. Se evaluaron las características más relevantes de las sequías severas acaecidas en el NEB entre 1901-2010 (en lo sucesivo, rachas secas). Se empleó el índice de precipitación estandariz...
Northeast Brazil (NEB) is a region often affected by strong droughts that cause severe impacts over agriculture, hydropower and water supply sectors. The most relevant features of severe droughts that occurred in the entire NEB during the 1901-2010 period (henceforth, dry spells) were evaluated. The standardized precipitation index with a quarterly...
Venezuela does not have a system for monitoring and early warning of droughts. In this context, we developed, calibrated and validated a method that combines probabilistic networks, intelligent systems and macroclimatic teleconnections (index anomaly North Atlantic surface temperature, the surface temperature of the East-Central Pacific, the Quasi-...
RESUMEN La principal región productora de cereales del territorio venezolano, ubicada en la región llanera, es impactada sucesivamente por sequías meteorológicas, lo que ocasiona pérdidas económicas y disminuye la producción de este rubro para abastecer el mercado nacional. Dada esta problemática, en esta investigación se realizó un análisis region...
Los Llanos represents the main cereal producing region in Venezuela, but the region is usually affected by some extreme droughts. Droughts cause great economic losses and affect grain production, thus preventing adequate supply to the domestic market. The objective of this study was to perform a regional frequency analysis to estimate the return pe...
Droughts occur when rainfalls diminish or cease for several days, months or years. In the last five years several meteorological droughts have occurred in Venezuela, impacting negatively water supply, hydro-power and agriculture sectors. In order to provide institutions with tools to manage the water resources, a probabilistic model has been develo...
The Plains of Venezuela are the main units of the country's cereal production, but the drought occurrences cause severe problems in the water supply systems and generate significant economic losses in the cereal market. This research develops and evaluates a model for early prediction of meteorological droughts in Los Llanos region based on oceanic...
The Plains of Venezuela are the main units of the country's cereal production, but the drought occurrences cause severe problems in the water supply systems and generate significant economic losses in the cereal market. This research develops and evaluates a model for early prediction of meteorological droughts in Los Llanos region based on oceanic...
La sequía ocurre cuando las lluvias disminuyen o cesan durante varios días, meses o años. En los últimos años, la región de los Llanos venezolanos ha presentado varias sequías meteorológicas, ocasionando fallas en los sistemas de abastecimiento de agua. Con la finalidad de conocer el comportamiento de este fenómeno y confrontar sus impactos, en est...
El objetivo de la investigación es diagnosticar el régimen climático de la cuenca del lago de Valencia y determinar la densidad de la red pluviométrica mediante el análisis de distribución espacial de las lluvias, utilizando la información disponible en la región central (Aragua, Carabobo y Cojedes). La precipitación mensual muestra una distribució...
Intensity Duration Frequency (IDF) pattern of storms are used in the design of small hydraulic structures. In Cojedes state this kind of information is rather scarce, and there is a need of researches to find mathematical mo- dels to estimate the storm design parameters. Based on the historical records of 48 rain gauges distributed over the state a...
In the last years Venezuela has been subject to extremely dry periods during the winter season, causing a drastic reduction of minimum flows of rivers. The year 2003 was characterized by the severe drought period in Cojedes State making to believe at that time that this phenomenon could have caused the drastic reduction of the mean flow of Tirgua R...
Hydrologists use Depth - Area relationships in planning projects of water resources. These relations are presented as family of curves for different durations, from which, area reduction factors of point rainfall are determined to estimate the aerial mean rainfall for a given frequency. In this research regional Height-Area-Duration models are deve...
Pollution is a consequence of the use of natural resources. Man as producer and consumer is responsible for their depletion; but he is also a victim of the pollution. Many factors make the problem to increase with the time, being the more important population growth, excess of consumption, eagerness of enrichment, and lack of environmental ethics....
RESUMEN En este trabajo se describen los principales aspectos curriculares, académicos y de organización del Programa de Posgrado en Ingeniería Ambiental que ofrece actualmente la Universidad de Carabobo de Venezuela a los profesionales de la ingeniería y Áreas afines. Dada la importancia industrial de la región central de Venezuela, área de influe...
Pollution is not a recent phenomen on, it has occurred parallel to human civilization and has been intensified with the advance of technology. Therefore it is necessary to evaluate historically the impacts of the use of natural resources in order to make corrections to get a sustainable development. In this paper a review of the state of the enviro...
Summary There is a remarkable difficulty in the calculation of roughness coefficient when using Manning equation to estimate the rate of flow in a channel. To select a value of " n " means to estímate the resistance to flow, what requires judgement and experience. In this investigation an effort has been made to determine the value of " n " by the...
The mean oil products used everywhere are the gasoline's, which, nevertheless are not supplied in pure state but mixed with some chemical additives called oxygenates to become a complete combustion in the machines reducing in this way the motor emissions to the atmosphere. There are many types of oxygenates in the fuel market, being the more freque...
This study deals about the diagnosis of groundwater pollution due to the leaching effects of the solid waste disposal La Guásima, which lies in the sector Municipio Libertador, Carabobo State. The study is based on the analysis of physic and geographic characteristics of the disposal site and the results of groundwater quality analysis of samples t...
This research deals with hydrologic analysis to estimation engineering design parameters of storms in Venezuela, which help hydrologists to improve their environmental designs. This analysis focus on storm advancement coefficient r (SAC) to establish storm pluviographs; Intensity Duration Frequency (IDF); and Area - Depth - Duration relationships (...
Resumen Para todos es conocida la tragedia por la que ha atravesado la sociedad venezolana finalizando el año 1999. Un período prolongado de lluvias de varios días, justamente a la entrada de la estación seca, saturó completamente los estratos de suelo de las laderas, y ocasionó que las intensas tormentas que cayeran los días 15 y 16 de diciembre d...
Teléfono (58-241)8672829, Fax (58-241)8671655, E.Mail: eguevara@thor.uc.edu.ve Resumen Este trabajo proporciona al docente joven herramientas para aprender cómo enseñar ingeniería, ayudándole efectiva y eficientemente en su actividad docente y en su desarrollo académico. La educación en ingeniería se orienta fuertemente a la solución de problemas;...
Traditional hydrologic design methods of small hydraulic structures as storm sewers and road culverts use Intensity-Duration-Frequency (IDF) analysis of storms to estimate the design rainfall. In countries as Venezuela with lack of information, engineers have to process the scarce available data to estimate the design parameters through regional me...
Annual rainfall distribution in tropical America depends on the ITC zone, affected by factors such as Andes Mountain, tropical Pacific and Atlantic Oceans and local convergence areas. Studies have showed correlation between the ENSO Phases and hydrologic anomalies in the region. In Venezuela ENSO effects are reflected as climatic anomalies with mag...
Incluye índice y bibliografía
Incluye bibliografía e índice
