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Prikaz rezultata 81-90 od 93
Oil pollution in the vinicity of a heating plant in New Belgrade (Serbia) – influence on the quality of the surrounding soil and sediments
(2015)
Petroleum products have been used for decades in the plants for district heating in Belgrade (Capital of Serbia). The most used derivative for this purpose is a heavy oil fuel. Additionally, raw petrol and eco-diesel are ...
Flotation Concentrations of Polymetallic Sulfides from Serbian Ore Deposits as Biohydrometalurgical Substrates: Laboratory Tests
(2015)
There are three ore deposits of polymetallic sulfide ores that are of economic value in Serbia. Only ore deposit "A" (in central part of Serbia) is mine in exploitation (underground and surface), including and floatation ...
Environmental influence on service life expectancy of ceramic structures
(Политехпериодика/Politehperiodika, 2015)
During the service life, materials are exposed to environmental influences. The aim of this research is to analyze behavior of sulfur concrete compared to Portland cement concrete in acid environment. It has been shown ...
Leaching behavior of sulfur concrete with fly ash used for removal of heavy metals from wastewater
(Belgrade : Mining institute BelgradeAcademy of Engineering sciences of SerbiaUniversity of Belgrade, 2015)
When considering the materials that have become waste in a technological process, one way of their immobilization is for the production of certain new materials. The basic fact is to provide the environmentally acceptable ...
Surface analysis of composite material exposed to extreme conditions
(Политехпериодика/Politehperiodika, 2015)
The purpose of this study was quantitative analysis of material surface degradation by program for image analysis. Composite material, alumina based low cement concrete, was synthesized, cured, and then sintered at 1600 ...
Ispravnost proizvoda za decu i odojčad koji potencijalno mogu da sadrže ftalate / Safety of children and infants products that can potentially contain phthalates
(Udruženje za tehnologiju vode i sanitarno inženjerstvo / Association for water technology and sanitary engineering, 2015)
Usled široke upotrebe ftalata u proizvodima za ličnu negu i proizvodima široke potrošnje, ljudska populacija postaje sve ugroženija usled izloženosti udisanjem, gutanjem i kontaktom preko kože. Dečije igračke i oprema za ...
Određivanje koeficijenta biorazgradnje otpadnih voda / Determination of coefficient of biodegardation for wastewater
(Udruženje za tehnologiju vode i sanitarno inženjerstvo / Association for water technology and sanitary engineering, 2015)
Pri emisiji otpadnih voda u vodotokove dolazi do formiranja biološkog reaktora, u kome se odvijaju procesi razblaženja i samoprečišćavanja. Stepen razblaženja zavisi od odnosa protoka vode u vodotoku i količine otpadnih ...
Behavior of low cement castable in extreme conditions: thermal shock, cavitation erosion, low level laser action
(Institute for Multidisciplinary Research, University of Belgrade, 2015)
The goal of this study was to use the quantitative analysis of surface and bulk degradation of low cement castable. Alumina based low cement castable (LCC) was synthetized, cured, and then sintered at 1600 °C with the dwell ...
Implementation of image analysis on surface degradation determination caused by cavitation erosion
(Днепропетровск : ГВУЗ «Приднепровская государственнаяакадемия строительства и архитектуры», 2015)
The purpose of this study was to investigate different types of measurements by image analysis technique using Image Pro Plus program for determination of surface degradation during cavitation erosion testing. As a refractory ...
Razvojne faze u životu akumulacije i procena trofičkog statusa / Developmental stages in the life of reservoir and assessment of the trophic status
(Udruženje za tehnologiju vode i sanitarno inženjerstvo / Association for water technology and sanitary engineering, 2015)
Na osnovu rezultata dugoročnog monitoringa određuju se razvojne faze u životu akumulacije i propisuju mere za sprečavanje degradacije kvaliteta vode u akumulacijama. Iz tih razloga je kontinuiranim monitoringom u periodu ...