نتایج جستجو برای: demand indicator

تعداد نتایج: 220187  

Journal: :Energy Engineering 2022

This paper presents a newly developed proximity indicator for voltage stability assessment which can be used to predict critical real system load and voltages at various buses loading point. The varies almost parabolic with total demand reaches orthogonally axis. relation has been utilized It shown that two operating points are needed estimating point proper selection of variation near collapse...

Journal: :BMC Public Health 2006
Ostry Aleck Maggi Stefania Tansey James Dunn James Hershler Ruth Chen Lisa Louie Amber Hertzman Clyde

BACKGROUND Adverse employment experiences, particularly exposure to unemployment and the threat of unemployment, have been strongly associated with several adverse mental and physical health outcomes including suicide. However, virtually no research has been conducted on the trans-generational impact of parental working conditions on attempted or completed suicide among their children. METHOD...

2015
Magdalena Gajewska Krzysztof Jóźwiakowski Ahmed Ghrabi Fabio Masi

Nitrogen removal in treatment wetlands is influenced by many factors, and the presence of electron donors (biodegradable organic matter) and electron acceptors (nitrate ions) is the main limiting one; for obtaining these conditions, multistage treatment wetlands (MTWs) are required, where an extensive nitrification can be obtained in the first stages under aerobic conditions leaving then to the...

Journal: :Arhiv za higijenu rada i toksikologiju 2009
Loubna Amahdar Abdellah Anouar Bouchra Ababou Luc Verschaeve Abderraouf Hilali

With the increasing use of landfill sites, leachates produced by uncontrolled waste disposal have became a serious threat for the aquatic environment. The aim of this study was to evaluate the genotoxicity of leachate and of well water sampled close to the town of Settat in Morocco using the micronucleus test and proliferation kinetics of human peripheral blood lymphocytes in vitro. We also ana...

2017
Gorkem Sariyer Mustafa Gokalp Ataman Serhat Akay Turhan Sofuoglu Zeynep Sofuoglu

OBJECTIVE Effective planning of Emergency Medical Services (EMS), which is highly dependent on the analysis of past data trends, is important in reducing response time. Thus, we aimed to analyze demand for these services based on time and location trends to inform planning for an effective EMS. MATERIALS AND METHODS Data for this retrospective study were obtained from the Izmir EMS 112 system...

2015
Rauĺ N. Comelli Lisandro G. Seluy Ignacio E. Grossmann Miguel A. Isla

Certain wastewaters from the nonalcoholic sugar-sweetened beverage industry, particularly those discarded because of deficient bottling processes or those returned from the market because of quality constraints, exhibit chemical oxygen demand (COD) levels as high as 135000 mg of O2/L because of their sugar content: 60−119 g/L, depending on the beverage. Thus, treating such wastewaters before di...

Journal: :Journal of environmental biology 2006
Maria F Potentini Antonio J Rodriguez-Malaver

Vinasse is a colored recalcitrant wastewater of the distillery industry. The aim of this work was to study the use of Phanerochaete chrysosporium for the vinasse degradation under two different growth conditions. Vinasse was treated by P. chrysosporium in a liquid inoculum form, during 32 days at room temperature (approximately 25 degrees C) and at 39 degres C. Chemical oxygen demand (COD), tot...

Journal: :Photochemistry and photobiology 2013
José C Costa M Madalena Alves

A photocatalytic reactor with UV/TiO2 was used for the posttreatment of olive mill wastewater after anaerobic digestion. A factorial experimental design was adopted to determine the statistical significance of each parameter tested, namely, initial chemical oxygen demand (COD), pH, treatment time and recirculation flow and possible interactions in three response variables: phenols, color and CO...

Journal: :Journal of environmental science and health. Part. B, Pesticides, food contaminants, and agricultural wastes 2013
Juan C Casas-Zapata Karina Ríos Tomás R Florville-Alejandre Jordi Morató Gustavo Peñuela

This study investigates the effects of chlorothalonil (CLT) on chemical oxygen demand (COD) and dissolved organic carbon (DOC) in pilot-scale horizontal subsurface flow constructed wetlands (HSSFCW) planted with Phragmites australis. Physicochemical parameters of influent and effluent water samples, microbial population counting methods and statistical analysis were used to evaluate the influen...

2015
P. Arulmathi G. Elangovan A. Farjana Begum

Distillery industry is recognized as one of the most polluting industries in India with a large amount of annual effluent production. In this present study, the optimization of electrochemical treatment process variables was reported to treat the color and COD of distillery spent wash using Ti/Pt as an anode in a batch mode. Process variables such as pH, current density, electrolysis time, and ...

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