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RISS 인기검색어
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- 저자 : Mehmet Karabulut (검색결과 2 건)
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Abdulkerim Karabulut,Adem Sarilmaz,Faruk Ozel,İkram Orak,Mehmet Akif Şahinkaya 한국물리학회 2020 Current Applied Physics Vol.20 No.1
Cu2NiSnS4 nanorods were synthesized by the usage of hot-injection technique and used as interlayer between the p-Si and Al metal in order to examine their behavior against the temperature and frequency changes. The current-voltage measurements were performed in 80–300 K temperature range with 20 K steps. The X-Ray Diffraction (XRD) was used to prove the crystal structure of the synthesized Cu2NiSnS4 nanorods. Some crucial device parameters such as barrier height, series resistance and ideality factor values were calculated, and the obtained values were compared with other studies in the literature. It has been seen that the calculated parameters of the prepared device are strongly dependent on temperature changes. Besides, the capacitor behavior of fabricated device was investigated depending on the frequency and voltage changes. The experimental results indicated that the prepared device with Cu2NiSnS4 nanorods interlayer could be utilized in the electronic technology, especially applications in wide temperature range.
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Intramural hematomas of the gastrointestinal system
Osman Kones,Ahmet Cem Dural,Murat Gonenc,Mehmet Karabulut,Cevher Akarsu,Ilhan Gok,M. Abdussamet Bozkurt,Mehmet Ilhan,Halil Alıs 대한외과학회 2013 Annals of Surgical Treatment and Research(ASRT) Vol.85 No.2
Purpose: Although spontaneous intramural hematomas of the gastrointestinal tract are very rare, they may be observed with the use of oral anticoagulant, though less frequently in cases of hematological malignancy and other bleeding disorders. Cases diagnosed as spontaneous intramural hematoma have been assessed in our clinic. Methods: The cases, which were diagnosed as spontaneous intramural hematoma in the gastrointestinal tract (SIHGT) following anamnesis, physical examination, biochemical, radiological and endoscopic findings from July 2008 to July 2012, have been assessed retrospectively. Results: Seven out of 13 cases were women and the mean age was 65.1 years (34 to 82 years). The most frequent complaint on admission was abdominal pain. The most frequent location of SIHGT was the ileum (n = 8). Oral anticoagulant use was the most common cause of etiology (n = 12). In 10 cases, International normalized ratio values were higher than treatment range (2 to 3, where mechanical valve replacement was 2.5 to 3.5) and mean value was 7.6 (1.70 to 23.13). While 12 cases were discharged without problems with medical treatment, one case with acute myeloid leukemia died in the intensive care unit following cerebrovascular attack. Conclusion: Spontaneus bleeding and hematomas that may arise in connection with bleeding diathesis may be fatal in cases with long-term oral anticoagulant treatment and insufficient follow-up. In management of these cases, it may be necessary to arrange conservative follow up and/or initialize low molecular weight heparin, and administer vitamin K as well as replace blood products and coagulation factors when indicated.
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