http://chineseinput.net/에서 pinyin(병음)방식으로 중국어를 변환할 수 있습니다.
변환된 중국어를 복사하여 사용하시면 됩니다.
Necati Timurkaan,Fethi Yilmaz,Hakan Bulut,Harun Ozer,Yusuf Bolat 대한수의학회 2003 Journal of Veterinary Science Vol.4 No.2
and Immunohistochemical Findings in Broilers Inoculated with a Low Virulent Strain of Infectious Laryngotracheitis VirusNecati Timurkaan*, Fethi Yilmaz, Hakan Bulut1, Harun Ozer and Yusuf Bolat1
Hakan Bulut,Aylin Pasaoglu 대한치과교정학회 2017 대한치과교정학회지 Vol.47 No.6
Fusion of teeth is a developmental anomaly. It occurs at the stage of tooth formation, which determines the shape and size of the tooth crown, when one or more teeth fuse at the dentin level during the morphodifferentiation of the dental germs. Such teeth show macrodontia and may cause crowding, as well as esthetic and endodontic problems. In this article, we report a rare case of a maxillary central incisor fused to a supernumerary tooth showing labial and palatal talon cusps, which was orthodontically moved across the midpalatal suture. A 13-year-old Caucasian boy sought treatment for the unesthetic appearance of his maxillary central incisor and anterior crowding. He was rehabilitated successfully via a multidisciplinary approach involving orthodontic, nonsurgical endodontic, periodontal, and prosthodontic treatments. After a 26-month treatment period, the patient’s macroesthetics and microesthetics were improved. The overall improvement of this macrodontic tooth and its surrounding tissues through multidisciplinary treatment was documented using cone-beam computed tomography.
Gultekin Batuhan,Bulut Fatih,Yildiz Hatice,Us Hakan,Ogul Hasan 한국원자력학회 2023 Nuclear Engineering and Technology Vol.55 No.12
Radiation is the main safety issue for almost all nuclear applications, which must be controlled to protect living organisms and the surrounding materials. In this context, radiation shielding materials have been investigated and used in nuclear technologies. The choice of materials depends on the radiation usage area, type, and energy. Polymer materials are preferred in radiation shielding applications due to their superior characteristics such as chemical inertness, resistivity, low weight, flexibility, strength, and low cost. In the presented work, ABS polymer material, which is possibly the most commonly used material in 3D printers, is mixed with Gd2O3 and Er2O3 nanoparticles. ABS filaments containing these rare-earth elements are then produced using a filament extruder. These produced filaments are used in a 3D printer to create shielding samples. Following the production of shielding samples, SEM, EDS, and gamma-ray shielding analyses (including experiments, WinXCOM, GEANT4, and FLUKA) are performed. The results show that 3D printing technology offers significant enhancements in creating homogeneous and well-structured materials that can be effectively used in gamma-ray shielding applications.
Zekeriyya Bahadır,Mustafa Soylak,Volkan Numan Bulut,Duygu Ozdes,Celal Duran,Hakan Bektas 한국공업화학회 2014 Journal of Industrial and Engineering Chemistry Vol.20 No.3
A coprecipitation method was developed for the quantitative separation and preconcentration of Pb(II),Cr(III) and Cu(II) ions. Analytes were coprecipitated using a triazole derivative (2-{4-[2-(1H-indol-3-yl)ethyl]-3-(4-chlorobenzyl)-5-oxo-4,5-dihydro-1H-1,2,4-triazol-1-yl}-N-aryl methylidene acetohydrazid). The analytes were analyzed by flame atomic absorption spectrometry. The parameters suchas sample pH, amount of reagent, sample volume, matrix effects etc. were investigated. The enrichmentfactor for the analyzed metal ions was obtained as 50. The relative standard deviations (RSD) were in therange of 2.8–4.1%. The accuracy of the proposed procedure was checked by the analysis of the CRM-CSandySoil C. The method was successfully applied to real samples.