Browsing Elektrik Ve Enerji Bölümü Koleksiyonu by Issue Date
Now showing items 1-20 of 22
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Lightlike hypersurfaces in semi-Riemannian manifold with semi-symmetric non-metric connection
(Matematisk Inst, 2008)In this paper, We Study lightlike hypersurfaces of a semi-Riemannian manifold admitting a semisymmetric non-metric connection. We give the equations of Gauss and Codazzi. Then, we obtain conditions under which the Ricci ... -
Thermo-economic analysis of pipe insulation for district heating piping systems
(Pergamon-Elsevier Science Ltd, 2011)In this study, the optimum insulation thickness of pipes used in district heating pipeline networks, energy savings over a lifetime of 10 years, and payback periods are calculated for the five different pipe sizes and four ... -
Radionuclide concentration in cabbage samples due to gamma radiation in samsun, Turkey
(E D P Sciences, 2016)Establishing of radioactivity planes in foodstuff has emphasis because it allows the evaluation of population exposure to radiation by take nourishment. In this paper, the activity concentrations of Ra-226, Th-232, K-40 ... -
Research of production of CO2 from non-condensable gases in geothermal fluid and cost analysis
(Pergamon-Elsevier Science Ltd, 2017)In this research, we studied the techniques for production of CO2 by using non-condensable gas containing CO2 at a rate of 96%, obtained from the condenser of the thermal plant set up at Kizildere Geothermal area. Moreover, ... -
A SURVEY ON ELEMENTAL DISTRIBUTIONS OF VOLCANIC TUFF QUARRIES IN TURKEY
(Parlar Scientific Publications (P S P), 2017)Volcanic tuff stones are widely used as coating materials for insulation and/or ornamental purposes in the construction sectors in Turkey. Some volcanic tuff quarries are close to the residential areas, water resources and ... -
EFFECTS OF CUTTING PARAMETERS AND TOOL-PATH STRATEGIES ON TOOL ACCELERATION IN BALL-END MILLING
(Inst Za Kovinske Materiale I in Tehnologie, 2017)The determination of the cutting-parameter values that cause increases in vibration values is important to minimize the errors that can occur. Thus, the first aim of this study was to investigate the optimum cutting-parameter ... -
Radiometric measurement of lignite coal and its by-products and assessment of the usability of fly ash as raw materials in Turkey
(Walter de Gruyter Gmbh, 2018)Lignite coal (LC) is a key energy source for electricity generation in Turkey. During lignite burning, huge amounts of fly ash (FA), bottom ash and slag are produced as by-products which contain radionuclides in the natural ... -
Evaluation of Metal Contamination in Soil Samples Around Thermal Power Plant in Turkey
(Amer Inst Physics, 2018)Thermal power plants lead to major environmental problems such as the generation of acid gases and fly ash. Heavy metals contained in fly ash have potential risks for human health and soil and water ecosystems. Therefore, ... -
Türkiye’deki Feldspat Rezervlerinde Radyoaktivite Düzeyleri
(2019)Yer kabuğunun %60’ını oluşturan feldspat, en önemli mineral gruplarındandır. Magmanın farklı kısımlarında değişik şekillerde bulunan bu minerallerin soğuyup kristalleşmesiyle feldspat zonları ve yatakları oluşmuştur. ... -
Distribution of elemental compositions of zeolite quarries and calculation of radiogenic heat generation
(Taylor & Francis Ltd, 2020)The effectiveness ofthe use of zeolites in different industrial processes depends on their physical-chemical properties that are distinctly connected to their geological deposits. In this study, major oxides, eco-toxic ... -
Natural radioactivity, radon emanating power and mass exhalation rate of environmental soil samples from Karabuk province, Turkey
(Walter de Gruyter Gmbh, 2020)In this study, content of natural radionuclides (Ra-226. Th-232 and K-40) and radon emanating power and radon mass exhalation rate of surface soil samples collected around industrial province Karabuk in which the first ... -
Ecological assessment of heavy metals in soil around a coal-fired thermal power plant in Turkey
(Springer, 2020)In this study, heavy metal concentrations in agricultural surface soil (0-5 cm) samples collected from the area around the Kangal lignite-fired thermal power plant were determined using energy-dispersive X-ray fluorescence ... -
Impact of toxic metal pollution on surface water pollution: a case study of Tohma stream in Sivas, Turkey
(Taylor and Francis Ltd., 2021)This study was executed to investigate the acidification and heavy metal (Cr, Mn, Fe, Ni, Cu, Zn, and Pb) pollution of Tohma stream flowing near Kangal lignite-fired thermal power plant located in Kangal district of Sivas ... -
ANALYSIS OF NATURAL RADIOACTIVITY AND DETERMINATION OF POTASSIUM CONTENT IN FOODS
(PARLAR SCIENTIFIC PUBLICATIONS (P S P), 2021)Natural radionuclides, such as potassium-40 (K-40), radium-226 (Ra-226), and thorium-232 (Th-232) originating from the earth's crust can enter the human body through foods grown in the soil, which can cause internal ... -
GAMMA RAY RADIATION RESEARCH IN BUILDING MATERIALS
(PARLAR SCIENTIFIC PUBLICATIONS, 2021)Building materials used in the construction industry, such as marble, granite, ceramics, travertine, and cimstone, are of crustal origin and contain natural radiation. While these materials act as a source of natural ... -
THE OPTIMIZATION OF DRILLER PARAMETERS FOR ORTHOPEDIC SURGERY APPLICATIONS USING MULTIOBJECTIVE GRAY RELATIONAL ANALYSIS AND RESPONSE SURFACE METHOD
(WORLD SCIENTIFIC PUBL CO PTE LTD, 2022)In bone-drilling operations, undesirable temperature rises are experienced due to high-contact friction. These increases in temperature can damage bone and soft tissues from time to time. When the temperature exceeds 47 ... -
Assessment of the Enrichment of Heavy Metals in Coal and Its Combustion Residues
(AMER CHEMICAL SOC, 2022)Coal-fired thermal power plants remain one of the main sources of electricity generation in Turkey. Combustion of coal creates coal ash and slag, which are often stored in landfills located near residential and agricultural ... -
Evaluation of terrestrial radionuclide levels and concomitant radiological risks of bentonites used in many industries
(TAYLOR & FRANCIS LTD, 2022)Bentonite is a soft, porous, easily shaped, and absorbent material rich in aluminum, sodium, and potassium. Bentonite is a mineral widely utilized as drilling mud, ore pelletizing, absorbent/adsorbent, bleaching agent, ... -
Determination of concentrations of non-volatile elements in fly ash released from coal combustion using EDXRF
(TAYLOR & FRANCIS LTD, 2022)In this study, the concentration of thirteen non-volatile elements in coal fly ash samples obtained from the Kangal coal-fired thermal power plant located in Sivas province of Turkey was determined using an energy dispersive ... -
Natural Radionuclides in Bottled Mineral Waters Consumed in Turkey and Their Contribution to Radiation Dose
(ACS, 2022)Bottled natural mineral water (BMW) consumption in Turkey is increasing every year. Depending on the local geology from which the water is extracted, BMW could be enhanced with natural radionuclides. In this study, the ...
