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Öğe Tarihi eserlerin korozyonu ve korunması(Mustafa Kemal Üniversitesi, 2018) Aydın, MahmutÖğe Karyotypes of some small mammals inhabiting the province of Diyarbakır Turkey(Mosul University, 2011) Ulutürk, Servet; Coşkun, Yüksel; El Naemy, A; Kaya, AlaettinÖğe Design of PV energy system in Batman Turkey(AIP Conf.Proc., 2017) Pakma, Nilay; Pakma, Osman; Güllü, ÖmerÖğe Combustion, performance and emissions of a diesel power generator fueled with biodiesel-kerosene and biodiesel-kerosene-diesel blends(Elsevier, 2017-02-05) Bayındır, Hasan; Işık, Mehmet Zerrakki; Argunhan, Zeki; Yücel, Halit Lütfi; Aydın, HüseyinHigh percentages of biodiesel blends or neat biodiesel cannot be used in diesel engines due to high density and viscosity, and poor atomization properties that lead to some engine operational problems. Biodiesel was produced from canola oil by transesterification process. Test fuels were prepared by blending 80% of the biodiesel with 20% of kerosene (B80&K20) and 80% of the biodiesel with 10% of kerosene and 10% diesel fuel (B80&K10&D10). Fuels were used in a 4 cylinders diesel engine that was loaded with a generator. Combustion, performance and emission characteristics of the blend fuels and D2 in the diesel engine for certain loads of 3.6, 7.2 and 10.8 kW output power and 1500 rpm constant engine speed were experimented and deeply analyzed. It was found that kerosene contained blends had quite similar combustion characteristics with those of D2. Mass fuel consumption and Bscf were slightly increased for blend fuels. HC emissions slightly increased while NOx emissions considerably reduced for blends. It was resulted that high percentages of biodiesel can be a potential substitute for diesel fuel provided that it is used as blending fuel with certain amounts of kerosene.Öğe Nonlinear solutions of conformable fractional differential equations(2018) Turut, Veyis; Badur, SaraÖğe An efficient nonlinear technique for systems of fractional differential equations(Istanbul Gelisim University, 2017) Turut, Veyis; Bayram, MustafaÖğe Hardness and wear behaviours of al matrix composites and hybrid composites reinforced with B 4 C and SiC(Springer Nature, 2019-01-15) Çelik, Yahya Hışman; Kılıçkap, ErolThe conversion into the desired shape of the metal powders using Powder Metallurgy (PM) method enables economically mass productions. This case allows producing parts with complex and high dimensional accuracy with no machining. In this study the composites and hybrid composites with Al matrix were produced using PM method with different ratios B4C and SiC. Microhardness and wear experiments of the produced composites were investigated. Wear experiments were performed at a constant speed of 0.5 m/s, application loads of 5, 10 and 15 N and sliding distances of 250, 500, and 750 m. Then, SEM images of composites and hybrid composites were captured. The increase of the reinforcement ratio in the composites contributed to the increase of the hardness. The highest hardness value was computed as 58.7 HV from 16% B4C reinforced composite. In addition, the increase in the reinforcement ratio contributed to the increase of the wear resistance. The increase in the load and sliding distance also increased the wear. The minimum weight loss was calculated as 18 mg from 5 N load, 250 m sliding distance and 16% SiC reinforced composite.Öğe Batman'da farklı teknolojilere sahip fotovoltaik modüllerin performans karşılaştırması(Batman Üniversitesi, 2016) Öztürker, Hakkı; Pakma, OsmanBu tez çalışmasında Batman ilinde farklı teknolojilere sahip kurulu toplamda 6,46 kWp güce sahip şebeke bağlantılı sistemin bir yıllık verileri alınmış ve modül performans karşılaştırmaları dış parametrelere göre değerlendirilmiştir. Sistem 2,15 kWp tekli kristal silisyum, 2,15 kWp çoklu kristal silisyum ve 2,16 kWp ince film amorf silisyumdan oluşmuştur. Sistemden elde edilen veriler Haziran 2013-Mayıs 2014 tarihleri arasında 15'er dakika aralıklarla ölçülmüştür. Aynı zamanda gelen güneş ışınımı şiddeti değerleri de ölçülmüş, bu değerler yardımıyla sistem verimliliği ve modül performansları aylara göre karşılaştırılmıştır. Yapılan analizlerde her bir modülün aylara göre performanslarında önemli ölçüde değişkenlik gösterdiği saptanmıştır.Öğe Fabrication and electrical characterization of ZnO SiO2 p Si structure with outsized diode factor(European Union, 2010) Kavasoğlu, Neşe; Kavasoğlu, Abdülkadir Sertap; Pakma, Osman; Kabakçı, Murat; Birgi, Özcan; Oktik, ŞenerÖğe Geothermal water potential of Bursa (Turkey) province(Scholars Middle East Publishers, 2017-12) Dağ, Beşir; Bilgin, Ali
