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07 - Erişilebilir ve Temiz Enerji

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Erişilebilir ve Temiz Enerji Herkes için karşılanabilir, güvenilir, sürdürülebilir ve modern enerjiye erişimi sağlamak

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2016 - 20193
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Start date: 2016 × End date: 2019 ×

Publication Search Results

Now showing 1 - 3 of 3
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    Nutritional Assessment and Use of Complementary and Alternative Medicine in Cancer Patients Treated with Radiotherapy and Chemotherapy
    (2019-06-01T00:00:00Z) Güneş Bayır, Ayşe; Güney, Merve; GÜNEŞ BAYIR, AYŞE
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    Characterisationand microleakage of a new hydrophilic fissure sealent-Ultraseal XT®hydro™.
    (2016-08-01) GÜÇLÜ, ZEYNEP ASLI; DÖNMEZ, NAZMİYE; HURT, Andrew p; COLEMAN, Nicola; DÖNMEZ, NAZMİYE
    sealant, UltraSeal XT® hydro™ (Ultradent Products, USA), and to investigate its in vitro resistance to microleakage after placement on conventionally acid etched and sequentially lased and acid etched molars. Material and Methods: The sealant was characterised by Fourier transform infra-red spectroscopy (FTIR), scanning electron microscopy (SEM), energy dispersive X-ray analysis (EDX), and Vickers indentation test. Occlusal surfaces of extracted human molars were either conventionally acid etched (n=10), or sequentially acid etched and laser irradiated (n=10). UltraSeal XT® hydro™ was applied to both groups of teeth which were then subjected to 2,500 thermocycles between 5 and 55°C prior to microleakage assessment by fuchsin dye penetration. Results: UltraSeal XT® hydro™ is an acrylate-based sealant that achieved a degree of conversion of 50.6±2.2% and a Vickers microhardness of 24.2±1.5 under standard light curing (1,000 mWcm-2 for 20 s). Fluoride ion release is negligible within a 14-day period. SEM and EDX analyses indicated that the sealant comprises irregular submicron and nano-sized silicon-, barium-, and aluminium-bearing reduce microleakage (Mann-Whitney U test, p<0.001). The lased teeth presented enhanced
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    Engineering the band gap of LaCrO3 doping with transition metals (Co, Pd, and Ir)
    (2018-03-01T00:00:00Z) Polat, O.; Durmus, Z.; Coskun, F. M.; Coskun, M.; Turut, A.
    Exceptional properties such as dielectric, ferroelectric, piezoelectric, magnetic, catalytic, and photovoltaic of perovskite materials open new doors to many groundbreaking discoveries for unique device ideas. These materials properties are inherited from their crystal structures; therefore, the features can be tuned via varying details of the crystal structures. In the literature, LaCrO3 (LCO) is one those mostly examined perovskites for various purposes such as solid oxide fuel cells, catalytic converters, and sensors. In the present study, the band gap tuning of LCO was investigated via doping a transition element such as cobalt (Co), palladium (Pd), and iridium (Ir) into Cr atom. The synthesized doped and un-doped LCO powders were characterized by infrared spectra (IR) and X-ray diffraction (XRD). Scanning electron microscopy (SEM) was employed to study the surface topography of LCO and doped LCO thin films on silicon substrates. The band gaps of the LCO and doped LCO films were scrutinized using a UV-Vis spectrometer. Our study has shown that the band gap of LCO was successfully lowered from 3.4 eV to 2.66 eV and can be engineered via substitution at various mol% of transition elements (Co, Pd, Ir) onto B-site Cr atom in the LCO perovskite structure.