Yazar "Baltaş, Hasan" için listeleme
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Acute copper accumulation in Mediterranean mussel and sea snail
Şirin, Murat; Çiloğlu, Erhan; Baltaş, Hasan (Taylor & Francis Inc., 2021)In this study, the rate of copper accumulation in mussel (Mytilus galloprovincialis) and sea snail (Rapana venosa) organisms exposed to acutely different non-lethal copper concentrations was investigated for 5 days under ... -
Analysis of regional wild-type cereals in Trabzon-Turkey by EDXRF spectrometry
Çevik, Uğur; Genç, Hasan; Baltaş, Hasan; Ertuğral, Birol (2007)The energy dispersive X-ray fluorescence (EDXRF) spectroscopy was used to determine essential and trace element contents of some naturally grown wild-type cereals collected in different regions of Trabzon, Turkey. The ... -
Assessing pollution levels and health effects of heavy metals in sediments around Cayeli copper mine area, Rize, Turkey
Kiriş, Erkan; Baltaş, Hasan (Bellwether Publishing, Ltd., 2021)Heavy metal concentrations of Mn, Cr, Fe, Ni, Cu, Zn, Cd and Pb in sediment samples collected from 12 stations in the Black Sea coast, Buyukdere and Sabuncular streams around Cayeli copper mine area in Rize, Turkey were ... -
Assessment of metal concentrations (Cu, Zn, and Pb) in seawater, sediment and biota samples in the coastal area of Eastern Black Sea, Turkey
Baltaş, Hasan; Şirin, Murat; Dalgıç, Göktuğ; Bayrak, Esra Yılmaz; Akdeniz, Aysel (Pergamon-Elsevier Science Ltd, 2017)This study investigated the contents of Cu, Zn and Pb in seawater, sediment, different shell sizes of mussel (Mytilus galloprovinciaIis) and sea snail (Rapana venosa) samples collected from four different provinces of the ... -
Bio-kinetics of cesium-137 in Mediterranean mussel (Mytilus galloprovincialis) and sea snail (Rapana venosa) via seawater exposure
Baltaş, Hasan; Şirin, Murat; Çiloğlu, Erhan; Iminova, Gülnara; Çevik, Uğur (Elsevier, 2021)Accumulation and depuration kinetics in the samples of mussel (Mytilus galloprovincialis L. 1758) and sea snail (Rapana venosa (Valenciennes, 1846)) exposed to Cs-137 radioisotope via seawater exposure were investigated ... -
Calculation of radiation attenuation coefficients, effective atomic numbers and electron densities for some building materials
Damla, N.; Baltaş, Hasan; Çelik, A.; Kırış, Erkan; Çevik, U. (2012)Some building materials, regularly used in Turkey, such as sand, cement, gas concrete (lightweight, aerated concrete), tile and brick, have been investigated in terms of mass attenuation coefficient, effective atomic, ... -
A case study on pollution and a human health risk assessment of heavy metals in agricultural soils around Sinop province, Turkey
Baltaş, Hasan; Şirin, Murat; Gökbayrak, Emre; Özçelik, Ali Erdem (Pergamon-Elsevier Science Ltd, 2020)In the present study, the concentration levels of heavy metals such as Cr, Fe, Ni, Cu, Zn, As and Pb in soil samples collected from 88 sampling locations around Sinop Province, Turkey were measured using energy dispersive ... -
Comparison of elemental analysis for different kind of papers by using energy dispersive X-ray spectrometer
Yayli, M.; Koksal, O.K.; Apaydin, G.; Şirin, Murat; Cengiz, E.; Baltaş, Hasan (Chemical Publishing Co., 2017)In this study, comparative analyses of different 27 brand papers widely used in Turkey as ashes of paper in the form of pellets. The white paper and photocopied paper have been analyzed by using the energy dispersive X-ray ... -
Determination of natural radioactivity levels of some concretes and mineral admixtures in Turkey
Baltaş, Hasan; Kiriş, Erkan; Ustabaş, İlker; Yılmaz, Esra; Şirin, Murat; Kuloğlu, Emrah; Güneş, Banu Erdoğan (Asian Journal of Chemistry, 2014)Nine concrete samples with or without mineral admixtures have been analyzed for their naturally occurring radionuclide of Ra-226, Th-232 and K-40 using HPGe gamma spectrometry. Also, concrete raw materials such as aggregate, ... -
Determination of natural radionuclides and some metal concentrations in human tooth samples in the Rize province, Turkey
Baltaş, Hasan; Şirin, Murat; Şenel, Firdevs; Devran, Fatih (Taylor & Francis Ltd, 2019)The main purpose of this study was to identify the concentrations of naturally occurring radionuclides (Ra-226, Th-232 and K-40) and some metals (Fe, Ni, Cu, Zn, Pb and Cd) in tooth samples collected from humans living in ... -
Determination of radioactivity levels and heavy metal concentrations in seawater, sediment and anchovy (Engraulis encrasicolus) from the Black Sea in Rize, Turkey
Baltaş, Hasan; Kiriş, Erkan; Şirin, Murat (Pergamon-Elsevier Science Ltd, 2017)Seawater, sediment and fish (anchovy) samples consumed in the Rize province of the Eastern Black Sea region of Turkey were collected from five different stations. the radioactivity levels (Ra-226, Th-232. K-40 and Cs-137) ... -
Determination of radioactivity levels in soil samples of Recep Tayyip Erdogan University campus in Rize province
Yılmaz Bayrak, Esra; Baltaş, Hasan (2023)Recep Tayyip Erdogan University Zihni Derin Campus, situated at the Eastern Black Sea Region of Turkey, in the province of Rize, was established on a land area of approximately 3.254.430.28 m². It was found that tea, which ... -
Determination of radiological hazard parameters in sea snails (Rapana venosa) in the East Black Sea Coast of Turkey
Dalgıç, Göktuğ; Kırış, Erkan; Baltaş, Hasan; Şirin, Murat (Pergamon-Elsevier Science Ltd, 2018)The aim of this study was to determine the activity concentrations and radiological hazard parameters of Cs-137 and K-40 in soft tissue samples of sea snails (Rapana venosa) collected from 12 different stations in the East ... -
Determination of the effective atomic numbers and electron densities for YBaCuO superconductor in the range 59.5-136 keV
Baltaş, Hasan; Çevik, U. (Elsevier, 2008)The effective atomic numbers and electron densities of YBa2Cu3O7-? superconductor at 59.5, 65.2, 77.1, 94.6, 122 and 136 keV were calculated by using the measured mass attenuation coefficients. Measurements were made by ... -
Determination of trace elements in ashes of milk samples by using XRF technique
Sögüt, Ömer; Bali, Tuğba; Baltaş, Hasan; Apaydın, Gökhan (Chemical Publishing Co., 2013)Energy dispersive X-ray fluorescence system has been used to determine the heavy metal ions present in cow's milk. Samples have been collected from farm and markets within the border of Kahramanmaras province, Turkey. An ... -
Distribution of Cs-137 in the mediterranean mussel (Mytilus galloprovincialis) in Eastern Black Sea Coast of Turkey
Baltaş, Hasan; Kiriş, Erkan; Dalgıç, Göktuğ; Çevik, Uğur (Pergamon-Elsevier Science Ltd, 2016)This study presents the results of Cs-137 and K-40 radionuclide concentrations in mussel (Mytilus galloprovincialis) samples collected during the period of February-November 2014 from twelve different stations within the ... -
Ecological structure: production of organic impregnation material from mussel shell and combustion
Tan, Hüseyin; Şirin, Murat; Baltaş, Hasan (Assc Brasil Polimeros, 2022)In the research, sea mussel shell (Chamelea gallina) powders were impregnated on the samples of Eastern spruce (Picea orientalis (L.) Link.) and Anatolian chestnut (Castanea sativa Mill.) by dipping method at different ... -
Effect of annealing temperature on K-shell X-ray fluorescence parameters of zinc oxide thin films prepared by the sol-gel method
Şirin, Murat; Baltaş, Hasan; Kiriş, Erkan; Keskenler, Eyüp Fahri (Taylor & Francis Inc, 2019)Zinc oxide thin films were grown on a glass substrate by a sol-gel process using a spin-coating technique. the obtained thin films were annealed between 350 degrees C and 550 degrees C in 50 degrees C steps and were then ... -
Elemental composiiıons of some cosmetic products marketed in Turkey
Söğüt, Ömer; Reyhanlıoğlu, Hilal; Ezer, Muhsin; Baltaş, Hasan (Parlar Scientific Publications (P S P), 2016)The aim of this study was to determine elemental composition of various cosmetic products marketed in Turkey by X-Ray Fluorescence Spectrometry (XRFS). These cosmetic products ranged from blush, eye shadow, lipstick, nail ... -
Evaluation of ecological risk, source, and spatial distribution of some heavy metals in marine sediments in the Middle and Eastern Black Sea region, Turkey
Apaydın, Aylin; Kabaoğlu, Hatice; Apaydın, Gökhan; Şirin, Murat; Cengiz, Erhan; Köksal, Oğuz Kağan; Baltaş, Hasan; Tıraşoğlu, Engin (Springer Heidelberg, 2021)In the present study, the concentration levels of heavy metals such as Mn, Fe, Ni, Cu, Zn, Cr, and Pb in sediment samples collected from 16 sampling locations in the Middle and Eastern Black Sea regions, Turkey, were ...
