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    Wyświetlanie 1-11 z 11
    Tytuł:
    A comparative economic analysis for medical waste treatment options
    Autorzy:
    Ökten, H. E.
    Corum, A.
    Demir, H. H.
    Powiązania:
    https://bibliotekanauki.pl/articles/208038.pdf
    Data publikacji:
    2015
    Wydawca:
    Politechnika Wrocławska. Oficyna Wydawnicza Politechniki Wrocławskiej
    Tematy:
    waste treatment
    air pollution
    economic analysis
    incineration
    organic pollutants
    polychlorinated biphenyls
    waste incineration
    waste management
    air pollutants
    medical wastes
    utylizacja odpadów
    zanieczyszczenie powietrza
    analiza ekonomiczna
    spopielanie
    zanieczyszczenia organiczne
    polichlorowane bifenyle
    spalanie odpadów
    gospodarowanie odpadami
    zanieczyszczenia powietrza
    odpady medyczne
    Opis:
    Management practices for medical waste should be conducted using the best available techniques in order to minimize harmful effects of medical waste. Most common practices in Turkey were reported to be burying with lime and incineration. Although incineration stood out as a better option in terms of environmental and public health, it produced air pollutants such as dioxin, furan and co-planar PCBs as a result of incomplete burning of plastics. Consequently three options, namely converter, autoclave, and ozonator technologies were investigated for economic feasibility in the medical waste treatment field. ozonator technology was concluded to be the economically best option.
    Źródło:
    Environment Protection Engineering; 2015, 41, 3; 137-145
    0324-8828
    Pojawia się w:
    Environment Protection Engineering
    Dostawca treści:
    Biblioteka Nauki
    Artykuł
    Tytuł:
    Energy stability of Benard-Darcy two-component convection of Maxwell fluid
    Autorzy:
    Muti, H.
    Demir, H.
    Siddheshwar, P. G.
    Powiązania:
    https://bibliotekanauki.pl/articles/265656.pdf
    Data publikacji:
    2013
    Wydawca:
    Uniwersytet Zielonogórski. Oficyna Wydawnicza
    Tematy:
    stabilność energetyczna
    metoda Lapunowa
    lepkosprężystość
    płyn Maxwell'a
    relaksacja naprężeń
    energy stability analysis
    Lyapunov direct method
    Benard-Darcy convection
    viscoelastic
    twocomponent Maxwell fluid
    stress relaxation
    Opis:
    Energy stability of a horizontal layer of a two-component Maxwell fluid in a porous medium heated and salted from below is studied under the Oberbeck-Boussinesq-Darcy approximation using the Lyapunov direct method. The effect of stress relaxation on the linear and non-linear critical stability parameters is clearly brought out with coincidence between the two when the solute concentration is dilute. Qualitatively, the result of porous and clear fluid cases is shown to be similar. In spite of lack of symmetry in the problem it is shown that non linear exponential stability can be handled.
    Źródło:
    International Journal of Applied Mechanics and Engineering; 2013, 18, 1; 125-135
    1734-4492
    2353-9003
    Pojawia się w:
    International Journal of Applied Mechanics and Engineering
    Dostawca treści:
    Biblioteka Nauki
    Artykuł
    Tytuł:
    The grafting success of fourteen genotypes grafted on three different rootstocks on production of sweet cherry (Prunus avium L.) sapling
    Autorzy:
    Zenginbal, H.
    Demir, T.
    Demirsoy, H.
    Beyhan, Ö.
    Powiązania:
    https://bibliotekanauki.pl/articles/11855261.pdf
    Data publikacji:
    2017
    Wydawca:
    Uniwersytet Przyrodniczy w Lublinie. Wydawnictwo Uniwersytetu Przyrodniczego w Lublinie
    Opis:
    This study was conducted in Çanakkale Province, Bayramiç County between 2011 and 2013. The aim of this study was to determine the best rootstock × genotype combination by grafting 14 standard and local sweet cherry genotypes cultivated in Amasya Province on Mazzard, Gisela 5 and Gisela 6 rootstocks with T-budding method. Graftings were conducted on August 15th in both years. Following the grafting, the average daily temperature and relative humidity values in addition to bud sprout ratios and graft shoot lengths and diameters were examined. The experiment location was suitable for fall T-budding based on obtained climate data. The results of research showed that cherry genotypes and rootstocks had significant effects on bud sprout ratio. The best bud sprout rates among the sweet cherry genotypes and rootstocks were obtained from ‘Kargayüreği’ genotype (100%) and Gisela 6 rootstock (91.4 and 94.5%, respectively) in both year. Graft shoot lengths and diameters showed differences depending on genotypes and rootstocks. Among the sweet cherry genotypes and rootstocks, the best graft shoot length were obtained from ’Kargayüreği’ genotype and Gisela 5 rootstock in both year. The highest graft shoot diameter values among the sweet cherry genotypes and rootstocks were obtained from ‘Bing’ genotype and Gisela 5 rootstock in both years. As a result, it was shown that the 14 sweet cherry genotypes cultivated in Amasya can be successfully grafted on Mazzard, Gisela 5 and Gisela 6 cherry rootstocks and that 1st and 2nd class sweet cherry saplings can be produced.
    Źródło:
    Acta Scientiarum Polonorum. Hortorum Cultus; 2017, 16, 1; 133-143
    1644-0692
    Pojawia się w:
    Acta Scientiarum Polonorum. Hortorum Cultus
    Dostawca treści:
    Biblioteka Nauki
    Artykuł
    Tytuł:
    Determination of some trace elements and heavy metal levels (Cu, Mn, Mg, Fe, Zn, Co, Pb, and Cd) in blood serum of patients wİth lip and oral cavity cancers
    Autorzy:
    Demir, D.Ç.
    Demir, H.
    Bozan, N.
    Belli, Ş.
    Demir, C.
    Powiązania:
    https://bibliotekanauki.pl/articles/54103800.pdf
    Data publikacji:
    2023
    Wydawca:
    Uniwersytet Warmińsko-Mazurski w Olsztynie / Polskie Towarzystwo Magnezologiczne im. Prof. Juliana Aleksandrowicza
    Opis:
    This study investigated copper (Cu), manganese (Mn), magnesium (Mg), iron (Fe), zinc (Zn), cobalt (Co), lead (Pb) and cadmium (Cd) levels in the blood serum of patients with lip and oral cavity cancer. Our study aims to determine the relationship of some trace elements and heavy metals with lip and oral cavity cancer. Blood serum results of 21 individuals with lip and oral cavity cancer were compared with those in the control group consisting of 30 volunteer and healthy subjects. The serum levels of trace elements and heavy metals (Cu, Mn, Mg, Fe, Zn, Co, Pb and Cd) were determined by atomic absorption spectrophotometry at Yuzuncu Yil University Central Research Laboratory (Spectrometer: Thermo Scientific C103500100, China). In this study, when the descriptive statistics and comparison results for Cu, Mn, Mg, Fe, Zn, Co, Pb, and Cd were examined, the difference between the patient and healthy group means was found to be statistically significant (p<0.05). According to these results, Zn, Fe, Mn, Mg, and Cu levels which are essential trace elements for the human body, were significantly lower in patients than in healthy groups. On the other hand, Cd, Co, and Pb levels which are harmful and toxic to the human body were significantly higher in patients than in healthy persons (p<0.05). In conclusion, deficiencies of some trace elements, such as Cu, Mn, Fe, Zn, and Co, were detected in the blood serums of patients with lip and oral cavity cancer. Deficiencies of trace elements in patients with lip and oral cavity cancer may result from excessive nutrient consumption or malnutrition of cancer patients, in addition to which trace element and heavy metal levels (Cu, Mn, Mg, Fe, Zn, Co, Pb and Cd) can affect the etiopathogenesis of the disease.
    Źródło:
    Journal of Elementology; 2023, 28, 1; 89-106
    1644-2296
    Pojawia się w:
    Journal of Elementology
    Dostawca treści:
    Biblioteka Nauki
    Artykuł
    Tytuł:
    Mineral composition and quality parameters of greenhousegrown lettuce (Lactuca sativa L.) depending on fertilization with agricultural waste composts
    Autorzy:
    Sönmez, İ.
    Kalkan, H.
    Demir, H.
    Külcü, R.
    Yaldiz, O.
    Kaplan, M.
    Powiązania:
    https://bibliotekanauki.pl/articles/11830302.pdf
    Data publikacji:
    2017
    Wydawca:
    Uniwersytet Przyrodniczy w Lublinie. Wydawnictwo Uniwersytetu Przyrodniczego w Lublinie
    Opis:
    Agricultural wastes have increased with the intensive production in recent years. These wastes that affect the physical, chemical and biological properties of soils should be composted and added to soil. In this study, composts were consisted of different agricultural wastes such as greenhouse wastes-GPW, used cocopeat wastes-UCW, spent mushroom composts-SMC and at different ratios. Used cocopeat wastes were especially chosen in this experiment because it was not preferred in compost mixtures up to the present. Five different compost mixtures were added to the soil and their effects on growth and nutrient contents of lettuce plants were determined. The experiment was carried out during two successive seasons (autumn and spring). The results showed that plant growth and yield were found higher in the compost applications than in control. Generally the highest values were obtained from M1 application (80% GPW + 10% UCW + 10% SMC) for many parameters.
    Źródło:
    Acta Scientiarum Polonorum. Hortorum Cultus; 2017, 16, 3; 85-95
    1644-0692
    Pojawia się w:
    Acta Scientiarum Polonorum. Hortorum Cultus
    Dostawca treści:
    Biblioteka Nauki
    Artykuł
    Tytuł:
    Nutrient and bioactive substance contents of edible plants grown naturally in Salıpazarı (Samsun)
    Autorzy:
    Demir, E.
    Turfan, N.
    Özer, H.
    Üstün, N.S.
    Pekşen, A.
    Powiązania:
    https://bibliotekanauki.pl/articles/12704686.pdf
    Data publikacji:
    2020
    Wydawca:
    Uniwersytet Przyrodniczy w Lublinie. Wydawnictwo Uniwersytetu Przyrodniczego w Lublinie
    Opis:
    This study was carried out for the determination of nutrient and bioactive substance contents of edible wild plants consumed as vegetables in Samsun’s Salıpazarı district during September 2014 and August 2016 period. In the selected villages from identified locations, 11 species that naturally grow and are consumed as vegetables such as Alcea apterocarpa Boiss., Rumex crispus L., Urtica dioica L., Trachystemon orientalis L., Oenanthe pimpinelloides L., Smilax excelsa L., Capsella bursa-pastoris L., Aegopodium podagraria L., Arum italicum Miller, Ornithogalum sigmoideum Freyn et. Sint. and Amaranthus retroflexus L. have been identified. Protein, proline, free amino acid, superoxide dismutase (SOD) activity, lipid peroxidation level (MDA), glucose, sucrose, total soluble carbohydrate, chlorophyll, total carotenoids, β-carotene, lycopene, flavonoids, and anthocyanins contents of these plants were determined as 32.79–106.40 mg/g dry weight (DW), 5.71–47.66 µmol/g DW, 29.62–61.75 µg/g DW, 82.75–240.06 IU/mg protein, 106.36–531.05 µmol/g DW, 31.96–87.24 mg/100 g DW, 10.97–25.49 mg/100 g DW, 174.3–422.2 mg/100 g DW, 7.79–25.96 mg/100 g DW, 102.01–436.93 µg/100 g DW, 115.86–459.64 µg/100 g DW, 6.38–30.28 mg/100 g DW and 10.17– 21.52 mg/100 g DW, respectively. As a result of the analyses, it was determined that there were significant differences (P < 0.01) in terms of all parameters examined among species.
    Źródło:
    Acta Scientiarum Polonorum. Hortorum Cultus; 2020, 19, 1; 151-160
    1644-0692
    Pojawia się w:
    Acta Scientiarum Polonorum. Hortorum Cultus
    Dostawca treści:
    Biblioteka Nauki
    Artykuł
    Tytuł:
    Radiation doses to technologists working with 18F-FDG in a PET center with high patient capacity
    Autorzy:
    Demir, M.
    Demir, B.
    Yaşar, D.
    Sayman, H. B.
    Halac, M.
    Ahmed, A. S.
    Özcan, K.
    Uslu, I.
    Powiązania:
    https://bibliotekanauki.pl/articles/148501.pdf
    Data publikacji:
    2010
    Wydawca:
    Instytut Chemii i Techniki Jądrowej
    Tematy:
    whole-body dose
    finger doses
    personnel dosimetry
    18F-FDG
    PET-CT
    Opis:
    The increasing numbers of PET studies for routine diagnosis creates a real hazard to radiation workers. The aim of this study is to estimate the annual whole-body and finger radiation dose to technologists working with 18F-FDG in a PET center with high patient potential. In our PET center, the number of PET imaging has increased almost to 5000 studies per year. Our standard dose for tumor imaging is 518 MBq of 18F-FDG. Five technologists performing all steps of 18F-FDG imaging (5 patients per technologist in a day) were officially involved round the week for handling and injecting 18F-FDG to patients. Whole-body and finger dose measurements with TLDs were performed for two different time periods: i) before shielding precautions during the first 6 months (without a shielding for sterile syringe and without a lead container for shielded syringe) and ii) after shielding precautions during the next 6 months (with a shielding for sterile syringe and with a lead container for shielded syringe). The average annual whole-body radiation dose for one technologist before shielding precautions was 7.82 mSv and after shielding precautions was 5.76 mSv. On the other hand, while the average annual finger radiation doses for one technologist before shielding precautions were 210.36 and 293.72 mSv for the left and right hand, after shielding precautions were they 158.16 and 217.58 mSv for the left and right hand, respectively. According to our results, if one technologist performs the whole-body PET imaging of 5 patients per day, the annual radiation dose to this technologist will not exceed the recommended limits by ICRP.
    Źródło:
    Nukleonika; 2010, 55, 1; 107-112
    0029-5922
    1508-5791
    Pojawia się w:
    Nukleonika
    Dostawca treści:
    Biblioteka Nauki
    Artykuł
    Tytuł:
    Selection of alternative landfill location by using a geographical information system. European side of Istanbul. Case study
    Autorzy:
    Demir, G.
    Kolay, U. E.
    Okten, H. E.
    Alyuz, U.
    Bayat, C.
    Powiązania:
    https://bibliotekanauki.pl/articles/207074.pdf
    Data publikacji:
    2016
    Wydawca:
    Politechnika Wrocławska. Oficyna Wydawnicza Politechniki Wrocławskiej
    Tematy:
    decision support systems
    geographic information systems
    waste management
    environmental constraints
    praktyki w zakresie gospodarki odpadami
    GIS
    Turcja
    ograniczenia środowiskowe
    Opis:
    One of the most difficult tasks encountered when implementing waste management practices in Turkey involves the selection of the most suitable area for a landfill. The Geographic Information System (GIS) which possesses the ability to imitate and process economic and environmental constraints, presents itself as a useful and effective decision support tool. This study will utilize the GIS to determine feasible alternative landfill areas on the European side of Istanbul, which has a high density population, showing that accurate selection results can be achieved at lower cost.
    Źródło:
    Environment Protection Engineering; 2016, 42, 1; 123-133
    0324-8828
    Pojawia się w:
    Environment Protection Engineering
    Dostawca treści:
    Biblioteka Nauki
    Artykuł
    Tytuł:
    Investigation of natural radioactivity of surface soil samples in the vicinity of Edirne-Turkey
    Autorzy:
    Zaim, N.
    Tugrul, A.
    Atlas, H.
    Buyuk, B.
    Demir, E.
    Baydogan, N.
    Altınsoy, N.
    Powiązania:
    https://bibliotekanauki.pl/articles/1070463.pdf
    Data publikacji:
    2016-07
    Wydawca:
    Polska Akademia Nauk. Instytut Fizyki PAN
    Tematy:
    07.88.+y
    89.60.-k
    Opis:
    The study was carried out to determine radioactivity concentrations in surface soil samples of the city of Edirne in connection with the potential radiological hazards due to Chernobyl event. The natural radionuclide ((226)Ra, (232)Th and (40)K) contents were determined for nine different locations in nine different towns of the Edirne city. Radiation levels were measured. Natural beta-ray activity was also determined for the same locations. The average estimated activity values were determined and compared with reported values for other cities in Turkey and also for many countries of the world. The studied areas do not pose radiological risks to the inhabitants due to harmful effects of the ionizing radiation from the natural radioactivity of the soil.
    Źródło:
    Acta Physica Polonica A; 2016, 130, 1; 64-67
    0587-4246
    1898-794X
    Pojawia się w:
    Acta Physica Polonica A
    Dostawca treści:
    Biblioteka Nauki
    Artykuł
    Tytuł:
    Equilibrium and kinetic studies on the removal of heavy metal ions with natural low-cost adsorbents
    Autorzy:
    Varank, G.
    Demir, A.
    Bilgili, M. S.
    Top, S.
    Sekman, E.
    Yazici, S.
    Erkan, H. S.
    Powiązania:
    https://bibliotekanauki.pl/articles/207257.pdf
    Data publikacji:
    2014
    Wydawca:
    Politechnika Wrocławska. Oficyna Wydawnicza Politechniki Wrocławskiej
    Tematy:
    adsorbents
    adsorption
    bentonite
    dyes
    heavy metals
    kinetics
    metal ions
    water treatment
    heavy metal removal
    heavy metal ions
    heavy metals ions removal
    adsorbenty
    adsorpcja
    bentonit
    barwniki
    metale ciężkie
    kinetyka
    jony metali
    usuwanie jonów metali ciężkich
    uzdatnianie wody
    Opis:
    Adsorption isotherms and kinetics of the removal of heavy metal ions (Ni, Pb, Zn) from aqueous solutions by natural adsorbents (zeolite, bentonite, clay) were investigated in a lab-scale batch study. The effect of various parameters such as adsorbent dosage, initial concentration of heavy metal ions, temperature, and agitation time were studied to optimise the conditions. Under those optimized conditions (180 rpm agitation rate, 120 min agitation time, pH 4.0, 298 K, 100 mg/dm3 initial adsorbate concentration), the removal percentages of heavy metal ions for natural adsorbents have been determined. The adsorption mechanisms and characteristic parameters of the process were analyzed by two and three parameter isotherm models (Langmuir, Freundlich, Temkin, Redlich-Peterson, Toth and Sips), and kinetic models (Lagergren's pseudo-first order, Ho and McKay's pseudo-second order). Adsorption thermodynamics of heavy metal ions (changes of standard enthalpy, entropy and free energy) on zeolite, bentonite and clay were also studied at 298,318 and 338 K.
    Źródło:
    Environment Protection Engineering; 2014, 40, 3; 43-61
    0324-8828
    Pojawia się w:
    Environment Protection Engineering
    Dostawca treści:
    Biblioteka Nauki
    Artykuł
    Tytuł:
    Investigation of sorption characteristics of anaerobically digested dewatered municipal sewage sludge
    Autorzy:
    Varank, G.
    Demir, A.
    Bilgili, M. S.
    Top, S.
    Sekman, E.
    Yazici, S.
    Erkan, H. S.
    Powiązania:
    https://bibliotekanauki.pl/articles/206920.pdf
    Data publikacji:
    2014
    Wydawca:
    Politechnika Wrocławska. Oficyna Wydawnicza Politechniki Wrocławskiej
    Tematy:
    municipal sewage sludge
    sorption
    chlorophenol
    sewage sludge
    adsorption isotherms
    wastewater treatment
    ścieki komunalne
    sorpcja
    chlorofenol
    osady ściekowe
    izotermy adsorpcji
    oczyszczanie ścieków
    Opis:
    Physical, chemical, morphological properties and sorption characteristics of anaerobically digested dewatered municipal sewage sludge have been investigated including the surface area, pore size distribution, chemical composition, surface chemistry structure, surface physical morphology, mineralogy, cation exchange capacity, heavy metal content, total solid, total volatile solid, total Kjeldahl-N, total phosphorus content of the sewage sludge. The sorption potential of sewage sludge for the removal of 4-CP and 2,4-DCP from aqueous solutions was examined by investigating their adsorption isotherms and kinetics in a lab-scale batch study. Findings of this study clearly showed that sewage sludge provides chlorophenol removal in the landfill body as disposed with solid wastes.
    Źródło:
    Environment Protection Engineering; 2014, 40, 4; 119-133
    0324-8828
    Pojawia się w:
    Environment Protection Engineering
    Dostawca treści:
    Biblioteka Nauki
    Artykuł
      Wyświetlanie 1-11 z 11

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