MAU GCRIS Standard Database (Mardin Artuklu University)
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Özfırat, A., "Arkeoloji ve Yerel Yönetimler: Van ve Hakkari Valilikleri", Arkeoloji ve Sanat 89, 1999: 45-48.
No full textSevin, V., Özfırat, A., "Anadolu'da Yeni Bir Uygarlık/Hakkari Stelleri: Hubuşkia Prensleri", Arkeoloji ve Sanat 87, 1998: 6-9.
No full textÇUKUROVA KOŞULLARINDA Hyoscyamus niger' DE (SİYAH BANOTU) FARKLI EKİM VE HASAT ZAMANLARINlN DROG VERİMLERİ VE ALKALOİT ORANLARINA ETKİSİ
No full textEylül 1993- Agustos 1994 tarihleri arasinda yürütülen bu
denemede ikisi Sonbaharda, üçü Ilkbaharda olmak üzere bes ekim
zamaninda (1. Ekim: 21 Kasim 1993, 2. Ekim: LOAralik 1993, 3.
Ekim: 8 Nisan 1994,4. Ekim: 22 Nisan 1994, 5. Ekim 26 Mayis 1994)
ekilen bitkiler, çiçeklenme öncesi, çiçeklenme sirasi ve çiçeklenme
sonrasi olmak üzere üç farkli gelisme zamaninda hasat edilerek drog
verimleri ile total alkaloit oran ve verimleri saptanmistir.Bölge için en
uygun ekim zamaninin 26 Mayis (Y. Ekim) oldugu belirlenmistir.En
yüksek drog verimleri ile total alkaloit oranı ve verimleri genellikle
çiçeklenme sirasinda elde edilmişti
Journal WEAR
No full textThis study concerns the wear of sintered diamond tools in the cutting of SiC-particle–epoxy composites. The effects of the SiC particle
size, volume ratio in the composite and diamond grain size of the cutting tool on tool wear were investigated. The experimental work has
shown that a coarse-grained diamond tool exhibits higher wear resistance than a corresponding fine-grained tool. Greater tool wear was
obtained in cutting the composites that had coarser particles and a higher volume ratio of SiC. Moreover, it was found that the tool wear
increases drastically when the SiC particles are larger than the tool grains. A wear model of the tool was proposed, in which the tool is worn
mainly by the ‘tear-off’ mechanism of the diamond grains. This model could explain the experimental results by comparing the pushing force
of an SiC particle with the tear-off resistance of the diamond grains of the tool. Finally, a fatigue-like empirical curve was established. This
curve can be used to predict the wear of the tool during cutting of the composite. q 1997 Elsevier Science S
Özfırat, A., Sagona, A., "Early Bronze Age Material from İmikuşağı, East-Central Anatolia", Mediterranean Archaeology 9-10, 1996-97: 127-149.
No full textWhisker Behavior and Tool Wear in Cutting of Unidirectional SiC Whisker Reinforced Plastics
No full textThis study concerns the cutting process of unidirectional Sic whisker-reinforced plastic composite. The effects of the grain size of the
polycrystalline diamond tool and the Sic whisker orientation on the tool wear were investigated.
The tool with fine grain size exhibited higher wear rates. The greatest tool wear was with the composite having longitudinal alignment of
whiskers. The cutting processes of various orientations of whiskers were observed by scanning electron microscopy at low speed using a
specially designed device. Moreover, models were proposed for cutting the Sic whisker-plastic composite and for wear of sintered diamond
tools
