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Öğe Bi?r I?nek Vagi?nasinda Fi?brosarkom Olgusu(Selçuk Üniversitesi, 1988 Ocak) Çiftçi, M. Kemal; Deveci, Hüseyin; Tirmukan, HüseyinA tumour determined in vagina of a cow was removed surgically. It was detected that it was a fibrosarcoma as a result of histopatological examination of the tumour. It did not show any sign related to the recurrence of tumour in cow 9 months after the operation.Öğe Elazığ ve Çevresi?nde 1985-1992 Yıllar Arasında İneklerde Görülen Güç Doğumların Sebepleri, Tedavi?si? ve Alınan Sonuçlar Üzerine Çalışma(Selçuk Üniversitesi, 1993) Deveci, Hüseyin; Apaydın, A. Mükremin; Öcal, Halis; Timurkan, Hüseyin; Çetin, Hayrettin; Kaygusuzoğlu, Erdal; Kalkan, CahitIn this study, the causes, treatment methods and results obtained after treatment of the dystocia observed between 1985-1992 years in Elazığ region were investigated. In the study, 195 cows and heifers aged 2-10 years were used as material. These animals were treated either in the Clinic of Obstetrics and Gynecology Faculty of Veterinary Medicine, Firat University or in the places where the animals are held. It has been understood that these dystocia resulted from fetal and maternal causes in the rations of 72.68 % and 27.32 %, respectively. The fetal causes were anormal postures with 30.63 % and relative or absolut growth with 18.82 %. The main one of the maternal causes was uterine inertia with 10.33 %. The calves included 72.4 % male and 27.6 % female. These fetuses were found to enter into the pelvic canal 74.17 % anteriorly, 21.85% posteriorly and 3.9 % transversally. The mortality ratio of the calves due to the dystocia was 27.6 %. 94.87 % of the fetuses treated within the first 10 hours and 48.72 % of the ones treated from 10 hours were delivered alive.Öğe I?neklerde Kli?ni?k Masti?ti?sleri?n Alfasi?li?n ile Tedavi?si? Üzeri?ne Çalışma(Selçuk Üniversitesi, 1985 Ocak) Deveci, Hüseyin; Timurkan, Hüseyin; Özcan, Celal; Apaydın, A. MükreminIn this, study, the effectiveness of Alfasilin (=ampicillin soduim) in treatment of clinical mastitis was investigated in dairy cattle. Fifty cows from different races were used in the study. One hundred fifty four infected mammary quarters were treated with Alfasilin. According to the results of the bacteriological examinations, the first group had 25 cases which were found to be in sensitiveness of first or second degree to Ampicillin. Second group included 32 cases in which bacteriological examination was not done. Forty to fifty milliter of Alfasilin solution which contained 2.5 gram Alfasilin was injected in to each infected mammary quarter by teat canal. Also, 2.5 g Alfasilin was injected intramuscularly every day. The therapy lasted for five days from evening to evening, periodically. Milk samples obtained five to six days after the traetment were controlled by CMT (California Mastitis Test) and bacteriological examinations to determine the effectiveness of the treatment. The recovery rates of clinical mastitis were found as 67.74% in first and second groups, respectivelly. As the results of the experiment, Alfasilin was found to be an effective antibiotic in the treatment of clinical mastitis.Öğe Karboksil gruplu stiren kopolimerleri ve modifiye polistirenlerin sentezi ve özelliklerinin incelenmesi(Selçuk Üniversitesi Fen Bilimleri Enstitüsü, 2008-07-25) Deveci, Hüseyin; Kurbanlı, RefikaBu tez çalışmasında karboksil gruplu stiren kopolimerleri ve modifiye polistirenlerin sentezi için stirenin akrilik ve metakrilik asitlerle radikalik kopolimerizasyonu, değişik molekül kütleli polistirenlerin organik anhidritlerle ftalik anhidrit (FA), suksinik anhidrit (SA) ve maleik anhidrit (MA) ile katyonik katalizör BF3O(C2H5)2 katalizörlüğünde kimyasal modifikasyonu gerçekleştirilmiştir. Sentezlenen stiren kopolimerlerin ve modifiye polistirenlerin yapısına bağlanan karboksil grup miktarının polimerlerin kaplama (adhezyon, antikorozyon) özelliklerine, termal özelliklerine ve fiziko-mekanik özelliklerine etkisi araştırılmıştır. Maksimum asit sayısına sahip olan stiren kopolimerleri ve modifiye polistirenlerin Cu2+ and Zn2+ uzaklaştırma adsorban olarak kullanılabilirliği araştırılmıştır. Araştırmalar sonucunda, sentezlenen stiren kopolimerlerinin ve modifiye polistirenlerin kullanım alanlarının genişletilebilmesi ve endüstriyel atık sulardaki metallerin uzaklaştırılmasındaki etkinlikleri belirlenmiştir.Öğe Konya bölgesi düşük kaliteli linyitlerinin amonyaklaşma teknolojisinin araştırılması(Selçuk Üniversitesi Fen Bilimleri Enstitüsü, 2004-06-30) Deveci, Hüseyin; Kurbanlı, RefikaBu tez çalışmasında toprağın humus ihtiyacını karşılamak için Türkiye'nin genç linyit yataklarından olan Konya çevresi Beyşehir, Ermenek ve Ilgın maden ocaklarından toplanan düşük kaliteli linyitlerin hümik asit içeriklerinin belirlenmesi gerçekleştirilmiş, hem linyitlerin hem de Kreulen metotla elde edilen hümik asitlerin amonyaklaştırılmasmın optimizasyonu araştırılmış, maksimum azot içerikli organo-mineral gübre eldesi için optimum amonyaklaşma şartları bulunmuştur. Elde edilen azotlaşmış hümik bileşiklerin ve organo-mineral gübrelerin özellikleri ve kullanım alanları araştırılmış, sera şartlan altında yetişen ıspanak bitkisinin gelişimi üzerine olan etkisinin bulunması amaçlanmıştır. Düşük kaliteli linyitlerden elde edilen hümik bileşiklerin ve organo-mineral gübrelerin özellikleri, hammadde olarak kullanılan linyitlerin yapısındaki hümik asitlerin miktarına bağlı olarak değişmekte olup, daha fazla miktarda hümik asite sahip olan organo-mineral gübrelerin deneysel bitkilerin gelişimini artırmakta olduğu gözlenmiştir. Yapılan deneyler sonucunda Konya çevresi düşük kaliteli linyitlerin yapısında hümik asit miktarı % 25 - 42 arasında değiştiği belirlenmiştir. Bu nedenle, linyitlerin yapısındaki hümik asitlerden amonyum tuzlarının üretilmesinde etkili olan teknolojik parametrelerin optimum değerleri 50 Mesh, 55 °C, %15 NH4OH, 1/6 K/S oranı ve 30 saat olarak bulunmuş, azotla zenginleştirilmiş linyitler tarımda denenmiş ve düşük kaliteli Konya çevresi linyitlerin bitki gelişiminde kullanılmak üzere organo-mineral gübre üretiminde kullanılabileceği önerilmiştir.Öğe Modified Polystyrenes: Corrosion, Physicomechanical and Thermal Properties Evaluation(Elsevier Science Sa, 2012) Deveci, Hüseyin; Ahmetli, Gülnare; Ersöz, Mustafa; Kurbanh, RefikaCoating metal surfaces with polymers is a protective method against corrosion. It is known that the introduction of anionic hydrophylic groups enhances the adhesive property and protective functionality of polymers. In the present work, polystyrene (PS) was chemically modified with siiccinic (SAH) and phthalic (PhAH) anhydrides in the presence of BF3 center dot O(C2H5)(2) cationic catalyst. The modified polystyrenes (MPSs) were characterized by FTIR and H-1 NMR spectroscopy. The effect of various carboxylic groups bound to the PS's aromatic ring on the adhesion, corrosion, elastic properties and thermal behavior was studied in comparison with pure PS. All MPSs syntesized in this work, show strong adhesion to the substrate. The modifications enhanced the adhesion on metal surface of PS from 2% to 97-98%. Moreover, chemical modifications also enhanced the physico-mechanical properties of PS like surface hardness. tensile strength, percentage elongation and stress at maximum load. The best results were obtained for MPS with PhAH. (C) 2011 Elsevier B.V. All rights reserved.Öğe Synthesis and Metal Ions Sorption Properties of Styrene-Based Polymers(WILEY, 2009) Deveci, Hüseyin; Ahmetli, Gülnare; Ersöz, Mustafa; Kurbanlı, RefikaAtactic polystyrene (PS) was chemically modified with maleic (MAH), succinic (SAH), and phtalic (PhAH) anhydrides. Styrene was copolymerized with acrylic (AA) and methacrylic acids (MA). Amount of carboxyl groups (%) bound to polymers was determined in the range of 6.9-25.9. Different modified polystyrenes (MPS) and styrene copolymers were used in the experiments to study Cu(II) and Zn(II) ions adsorption probability and their comparison. Sorption capacity of the polymers for the metal ions were investigated in aqueous media containing different amounts of these ions (540 mg/L) and at different pH values (2.0-6.0). Adsorption behavior of heavy metal ions could be modeled using both the Langmuir and Freundlich isotherms. It was found that the adsorption capacity is highest at pH value of 6, whereas it decreases as the pH value decreases at temperature 25 degrees C +/- 1 degrees C for 240 min. The results obtained from the adsorption capacity experiments for Cu(II) and Zn(II) ions were 3.47-5.45 and 5.42-6.85 mg/g, respectively. The affinity order of polymers for both metal ions was observed as follows: SMAC > SAAC > MPS with MAH > MPS with SAH > MPS with PhAH. The maximum adsorption capacities of SMAC were 6.85mg/g for Zn(II) and 5.45 mg/g for Cu(II). (C) 2009 Wiley Periodicals, Inc. J Appl Polym Sci 112: 1192-1198, 2009Öğe Usability of Terebinth (Pistacia Terebinthus L.) Fruits as an Energy Source for Diesel-Like Fuels Production(PERGAMON-ELSEVIER SCIENCE LTD, 2012) Kar, Yakup; Şen, Nejdet; Deveci, HüseyinThis study examined the effects of varying pyrolysis parameters, including final temperature, heating rate, particle size, and nitrogen flow rate, on the yields of terebinth as a source of bio-oil. The maximum bio-oil yield of 58.99 wt.% was almost equal to diesel fuel in terms of its major fuel properties (H/C = 1.73, 38.50 MJ/kg, 0.954 g/cm(3), and flash point of 59 degrees C). The GC MS and H-1-NMR analysis results showed that bio-oil predominantly comprised aliphatic hydrocarbons with high heating value and other valuable compounds with potential added value. The results show that the bio-oil can be used as a feedstock for the production of the diesel-like fuels or refined chemicals.
