Prof. Dr. Ahmet DURGUTLU

Teknoloji Fakültesi > Metalurji ve Malzeme Müh.

 

Yayınlara Yapılan Atıflar;

A- (SCI,SSCI, AHCI tarafından taranan mak. yapılan atıflar)

 

 

1. Yayın;(A1)

A. DURGUTLU, “Experimental investigation of the effect of hydrogen in argon as a shielding gas on TIG welding of austenitic stainless steel”, Materials & Design, Volume 25, Issue 1, Pages 19-23, February 2004.

1. Atıf;

Grevey D, Sallamand P, Cicala E, et al., “ Gas protection optimization during Nd : YAG laser welding”, OPTICS AND LASER TECHNOLOGY 37 (8): 647-651, NOV 2005.

2. Atıf;

Munoz AI, Anton JG, Guinon JL, et al., “Effect of nitrogen in argon as a shielding gas on tungsten inert gas welds of duplex stainless steels”, CORROSION 61(7):693-705, 2005.

3. Atıf;

Buytoz, S., “Microstructural properties of M7C3 eutectic carbides in a Fe-Cr-C alloy”, Materials Letters 60 (5), pp. 605-608, March 2006.

4. Atıf;

Garcia-Garcia DM, Garcia-Anton J, Igual-Munoz A, et al., “Effect of cavitation on the corrosion behaviour of welded and non-welded duplex stainless steel in aqueous LiBr solutions”, CORROSION SCIENCE 48 (9): 2380-2405 SEP 2006.

5. Atıf;

Buytoz, S., Ulutan, M., “In situ synthesis of SiC reinforced MMC surface on AISI 304 stainless steel by TIG surface alloying”, SURFACE & COATINGS TECHNOLOGY, 200 (12-13), pp. 3698-3704, March 2006.

6. Atıf;

            Garcia-Garcia DM, Garcia-Anton J, Igual-Munoz A, et al., “Cavitation-corrosion studies on welded and nonwelded duplex stainless steel in aqueous lithium bromide solutions”, CORROSION 63 (5): 462-479 MAY 2007.

7. Atıf;

Boz, M., “Dry sliding wear behaviours of filled welded train rail”, METALLOFIZIKA I NOVEISHIE TEKHNOLOGII 29 (1): 105-114 JAN 2007.

8. Atıf;

            Murphy AB, Tanaka M, Tashiro S, et al., “A computational investigation of the effectiveness of different shielding gas mixtures for arc welding”, JOURNAL OF PHYSICS D-APPLIED PHYSICS, Vol:42, Is:11, Article Num: 115205, Published: JUN 7 2009

9. Atıf;

            Kilincer S, Kahraman N., “MIG Weldıng Of Aısı 409 And C1010 Steel Usıng An Austenıtıc Electrode And Investıgatıon Of Theır Mechanıcal Propertıes”, JOURNAL OF THE FACULTY OF ENGINEERING AND ARCHITECTURE OF GAZI UNIVERSITY,  24 (1): 23-31, 2009.

10. Atıf;

            Filho DF, Ferraresi VA, Scotti A, “Shielding gas influence on the ferritic stainless steel weldability”, PROCEEDINGS OF THE INSTITUTION OF MECHANICAL ENGINEERS PART B-JOURNAL OF ENGINEERING MANUFACTURE   Volume: 224 Issue: B6   Pages: 951-961   Published: 2010.

11. Atıf;

            Abu-Dheir N, Yilbas BS, “Quality Assessment and Metallurgical Examination of Laser Welded Sheets”, ADVANCES IN MATERIALS AND PROCESSING TECHNOLOGIES, PTS 1 AND 2  Book Series: Advanced Materials Research   Volume: 83-86   Pages: 611-615   Part: Part 1-2   Published: 2010.

12. Atıf;

            Huang HY, “Argon-Hydrogen Shielding Gas Mixtures for Activating Flux-Assisted Gas Tungsten Arc Welding”, METALLURGICAL AND MATERIALS TRANSACTIONS A-PHYSICAL METALLURGY AND MATERIALS SCIENCE   Volume: 41A   Issue: 11 Pages: 2829-2835   Published: NOV 2010.

13. Atıf;

            Kaya Y, “An investigation on joinability of the AISI 304 and AISI 430 stainless steel by TIG, MIG and Shielded metal arc welding methods”, JOURNAL OF THE FACULTY OF ENGINEERING AND ARCHITECTURE OF GAZI UNIVERSITY, Volume: 25   Issue: 3 Pages: 549-557   Published: SEP 2010.

 

 

 

14. Atıf;

            Kyriakongonas AP, Papazoglou VJ, Pantelis DI., “Complete investigation of austenitic stainless steel multi-pass welding”, SHIPS AND OFFSHORE STRUCTURES   Volume: 6 Issue: 1-2   Pages: 127-144   Published: 2011.

15. Atıf;

            Ertan Tuner; Ertan Rukiye; Uguz Agah, “Effects of Welding Parameters on the Mechanical Properties of Inert Gas Welded 6063 Aluminum Alloys”, MATERIALS TESTING, Volume: 54, Issue: 1, Pages: 13-18, Published: 2012.  

16. Atıf;

            Ertan Rukiye, “Optimisation of GTAW Parameters for the Tensile Strength of AISI 304 Stainless Steel Welds Using the Taguchi Method”, MATERIALS TESTING, Volume:54, Issue: 3, Pages: 163-168, Published: 2012.  

17. Atıf;

            Katherasan, D.; Sathiya, P.; Raja, A., “Shielding gas effects on flux cored arc welding of AISI 316L (N) austenitic stainless steel joints”, MATERIALS & DESIGN  Volume: 45   Pages: 43-51   DOI: 10.1016/j.matdes.2012.09.012   Published: MAR 2013.

 

 

2. Yayın;(A2)

A. KURT, H. ATEŞ, A. DURGUTLU, K. KARACİF, “Exploring the Weldability of Powder Metal Parts”, Welding Journal, Vol. 83, Num. 12, 34-37, December 2004.

1. Atıf;

            Grum J, Gorkic A, Kejzar R, et al., “Influence of the type of workpiece adjustment and energy input on the quality of a resistance projection weld”, INTERNATIONAL  JOURNAL  OF  MATERIALS  &  PRODUCT  TECHNOLOGY 29 (1-4): 272-296 2007.

2. Atıf;

E.O. Correa, S.C. Costa, J.N. Santos, “Weldability of iron-based powder metal materials using pulsed plasma arc welding process”, journal of materials processing technology 1 9 8, 323–329,  2008.

3. Atıf;

            Correa EO, Costa SC, Santos JN, “Studies on weldability of iron-based powder metal alloys using pulsed gas tungsten arc welding process”, JOURNAL OF MATERIALS PROCESSING TECHNOLOGY   Volume: 209, Issue: 8, Pages: 3937-3942, 2009.

4. Atıf;

            Kurt A, Ates H, “Investigation of weldability of P/M bronze materials by Tig welding technique”, Conference Information: 4th International Conference on Materials and Manufacturing Technologies (MATEHN 06), SEP 21-23, 2006 Cluj Napoca, ROMANIA
Source: MATERIALS AND TECHNOLOGIES  Book Series: ADVANCED MATERIALS RESEARCH   Volume: 23   Pages: 315-318   Published: 2007.

5. Atıf;

            Xia CZ, Li YJ, Wang J, et al., “Studies on weldability of nichrome-laminated powder alloy using TIG welding”, KOVOVE MATERIALY-METALLIC MATERIALS   Vol: 48 Pages: 257-263, 2010.

 

 

 

3. Yayın;(A3)

A. DURGUTLU, B. GÜLENÇ, F. FINDIK, “Examination of  copper/stainless steel joints by explosive welding”, Materials & Design, Vol. 26, Issue 6, Pages 497-507, 2005.

1. Atıf;

Kahraman Nizamettin, Gülenç Behçet and Findik Fehim, “Joining of titanium/stainless steel by explosive welding and effect on interface, Journal of Materials Processing Technology”, 169 (2), 127–133, 2005.

2. Atıf;

Nizamettin KAHRAMAN and  Behçet GÜLENÇ,  “Mıcrostructural and Mechanıcal Propertıes of Cu-Ti Plates Bonded Through Explosıve Weldıng Process”, Journal of Materials Processing Technology, 169 (1), 67–71, 2005.

3. Atıf;

Manikandan P, Hokamoto K, Deribas AA, et al., “Explosive welding of titanium / stainless steel by controlling energetic conditions”, MATERIALS TRANSACTIONS 47 (8): 2049-2055, AUG 2006   

4. Atıf;

Nizamettin Kahraman, Behcet Gulenc, Fehim Findik, “Corrosion and mechanical-microstructural aspects of dissimilar joints of Ti–6Al–4V and Al plates”, International Journal of Impact Engineering 34, 1423–1432, 2007.

5. Atıf;

            Lee JE, Bae DH, Chung WS, et al., “Effects of annealing on the mechanical and interface properties of stainless steel/aluminum/copper clad-metal sheets”, JOURNAL OF MATERIALS PROCESSING TECHNOLOGY 187: 546-549 JUN 12 2007.

6. Atıf;

            Wu JP, Yang YL, Zhao HZ, et al., “Micro-analysis of explosive cladding interface of Nb/304L”, TRANSACTIONS OF NONFERROUS METALS SOCIETY OF CHINA Volume: 17   Special Issue: Part A Sp. Iss. 1   Pages: S126-S130, 2007.

7. Atıf;

            Manikandan P, Hokamoto K, Fujita M, et al., “Control of energetic conditions by employing interlayer of different thickness for explosive welding of titanium/304 stainless steel”, Journal Of Materıals Processıng Technology, 195(1-3):232-240, 2008.

8. Atıf;

            Lv SX, Xu ZW, Wang HT, et al., “Investigation on TIG cladding of copper alloy on steel plate”, Scıence And Technology Of Weldıng And Joınıng, 13(1),: 10-16,2008.

9. Atıf;

            Acarer M., Demir B., “An investigation of mechanical and metallurgical properties of explosive welded aluminum-dual phase steel”, MATERIALS LETTERS,   Vol. 62   Issue: 25 Pages: 4158-4160, 2008.

10. Atıf;

L. Tricarico, R. Spina, D. Sorgente and M. Brandizzi, “Effects of heat treatments on mechanical properties of Fe/Al explosion-welded structural transition joints”, MATERIALS & DESIGN, Vol: 30, Issue: 7, Pages: 2693-2700, 2009.

11. Atıf;

            L. Tricarico and R. Spina, “Experimental investigation of laser beam welding of explosion-welded steel/aluminum structural transition joints”, MATERIALS & DESIGN, Vol: 31, Issue: 4, Pages 1981-1992, April 2010.

12. Atıf;

            Sabetghadam H, Hanzaki AZ, Araee A, et al., “Microstructural Evaluation of 410 SS/Cu Diffusion-Bonded Joint”, JOURNAL OF MATERIALS SCIENCE & TECHNOLOGY   Volume: 26   Issue: 2   Pages: 163-169   Published: FEB 2010.

13. Atıf;

            Sabetghadam H, Hanzaki AZ, Araee A, “Diffusion bonding of 410 stainless steel to copper using a nickel interlayer”, MATERIALS CHARACTERIZATION   Volume: 61  Issue: 6   Pages: 626-634   Published: JUN 2010.

14. Atıf;

            Zhao H, Huang ZH, Li PC, et al., “An investigation on Incoloy800-SS304 clad plate by explosive welding”, INTERNATIONAL JOURNAL OF MATERIALS RESEARCH Volume: 101   Issue: 12   Pages: 1532-1537   Published: DEC 2010.

15. Atıf;

            Findik F., “Recent developments in explosive welding”, MATERIALS & DESIGN   Volume: 32   Issue: 3   Pages: 1081-1093   Published: MAR 2011.

16. Atıf;

            Sui GF, Li JS, Sun F, et al., “3D finite element simulation of explosive welding of three-layer plates”, Conference Information: Symposium on Multiscale Modeling and Simulation of Materials/11th International Conference in Asia of the International-Union-of-Materials-Research-Societies, SEP 25-28, 2010 Qingdao, PEOPLES R CHINA
Source: SCIENCE CHINA-PHYSICS MECHANICS & ASTRONOMY   Volume: 54   Issue: 5   Pages: 890-896   Published: MAY 2011.

17. Atıf;

            Liang H, Xue ZY, Wu CJ, et al., “Research on continuous core-filling casting forming process of copper-clad aluminum bimetal composite material”, ACTA METALLURGICA SINICA-ENGLISH LETTERS   Volume: 23   Issue: 3   Pages: 206-214   Published: JUN 2010.

18. Atıf;

            Zhao Hui; Li Pingcang; Zhou Yinggang; et al., “Study on the Technology of Explosive Welding Incoloy800-SS304”, JOURNAL OF MATERIALS ENGINEERING AND PERFORMANCE  Volume: 20   Issue: 6   Pages: 911-917   DOI: 10.1007/s11665-010-9712-3   Published: AUG 2011.  

19. Atıf;

            Liang He; Zhao Yong-long; Zang Bo-lin; et al., “Orthogonal tests of lead-clad tin bimetal continuous casting by air pressure core-filling”, JOURNAL OF CENTRAL SOUTH UNIVERSITY OF TECHNOLOGY  Volume:18, Issue:5, Pages:1340-1348, DOI: 10.1007/s11771-011-0843-y   Published: OCT 2011.

20. Atıf;

            Sun Xian-jun; Tao Jie; Guo Xun-zhong, “Bonding properties of interface in Fe/Al clad tube prepared by explosive welding”, TRANSACTIONS OF NONFERROUS METALS SOCIETY OF CHINA  Volume:21, Issue:10, Pages:2175-2180, DOI: 10.1016/S1003-6326(11)60991-6   Published: OCT 2011.  

21. Atıf;

            Luo, J., Xiang, J., Liu, D., Li, F., Xue, K., “Radial friction welding interface between brass and high carbon steel”, Journal of Materials Processing Technology
volume 212, issue 2, pp. 385 – 392, year 2012.

22. Atıf;

            Zamani Ehsan; Liaghat Gholam Hossien, “Explosive welding of stainless steel-carbon steel coaxial pipes”, JOURNAL OF MATERIALS SCIENCE  Volume: 47   Issue: 2   Pages: 685-695   DOI: 10.1007/s10853-011-5841-9   Published: JAN 2012.

23. Atıf;

            Xiong Jiang-tao; Xie Qing; Li Jing-long; et al., “Diffusion Bonding of Stainless Steel to Copper with Tin Bronze and Gold Interlayers”, JOURNAL OF MATERIALS ENGINEERING AND PERFORMANCE, Volume: 21, Issue: 1, Pages: 33-37, DOI: 10.1007/s11665-011-9870-y, Published: JAN 2012.

24. Atıf;

            Saravanan S.; Raghukandan K., “Thermal kinetics in explosive cladding of dissimilar metals”, SCIENCE AND TECHNOLOGY OF WELDING AND JOINING, Volume: 17, Issue: 2, Pages: 99-103, DOI: 10.1179/1362171811Y.0000000080, Published: FEB 2012.  

25. Atıf;

            Wang Xiao; Zheng Yuanyuan; Liu Huixia; et al., “Numerical study of the mechanism of explosive/impact welding using Smoothed Particle Hydrodynamics method”, MATERIALS&DESIGN, Volume:35, Pages:210-219, DOI:10.1016/j.matdes.2011.09.047 Published: MAR 2012.  

26. Atıf;

            Zhao, Hui; Zhou, Yinggang; Li, Pingcang; et al., “An investigation of the microstructure and properties of the explosively welded Gr5-SS304 clad plates for golf heads”, INTERNATIONAL JOURNAL OF MATERIALS RESEARCH, Volume: 103,  Issue: 5   Pages: 571-574, DOI: 10.3139/146.110722, Published: MAY 2012.

27. Atıf;

            Asemabadi, M.; Sedighi, M.; Honarpisheh, M., “Investigation of cold rolling influence on the mechanical properties of explosive-welded Al/Cu bimetal”, MATERIALS SCIENCE AND ENGINEERING A-STRUCTURAL MATERIALS PROPERTIES MICROSTRUCTURE AND PROCESSING  Volume: 558  Pages: 144-149   DOI: 10.1016/j.msea.2012.07.102   Published: DEC 15 2012.

28. Atıf;

            Bina, Mohammad Hosein; Dehghani, Farshid; Salimi, Mahmoud, “Effect of heat treatment on bonding interface in explosive welded copper/stainless steel”, MATERIALS & DESIGN,Volume: 45, Pages: 504-509, DOI: 10.1016/j.matdes.2012.09.037, Published: MAR 2013.   

 

4. Yayın;(A4)

            B.GÜLENÇ, K.DEVELİ, N. KAHRAMAN, A.DURGUTLU, “Experimental study of the effect of hydrogen in argon as a shielding gas in MIG welding of austenitic stainless steel”, International Journal of Hydrogen Energy, Vol. 30, Pages 1475-1481, 2005.

 

1. Atıf;

            Ozyurek D, “An effect of weld current and weld atmosphere on the resistance spot weldability of 304L austenitic stainless steel”, MATERIALS & DESIGN   Vol. 29,  Issue: 3 Pages: 597-603, 2008.

2. Atıf;

            Khan MI, Kim JM, Kuntz ML, et al., “Bonding Mechanisms in Resistance Microwelding of 316 Low-Carbon Vacuum Melted Stainless Steel Wires”, METALLURGICAL AND MATERIALS TRANSACTIONS A-PHYSICAL METALLURGY AND MATERIALS SCIENCE   Vol:40A, Issue:4, Pages: 910-919, 2009.

3. Atıf;

            Brauser S, Kannengiesser T, “Hydrogen absorption of different welded duplex steels”, INTERNATIONAL JOURNAL OF HYDROGEN ENERGY, Vol: 35, Pages: 4368-4374, 2010.

4. Atıf;

            Filho DF, Ferraresi VA, Scotti A, “Shielding gas influence on the ferritic stainless steel weldability”, PROCEEDINGS OF THE INSTITUTION OF MECHANICAL ENGINEERS PART B-JOURNAL OF ENGINEERING MANUFACTURE   Vol: 224  Pages: 951-961, 2010

5. Atıf;

            Kaya Y, “An investigation on joinability of the AISI 304 and AISI 430 stainless steel by TIG, MIG and Shielded metal arc welding methods”, JOURNAL OF THE FACULTY OF ENGINEERING AND ARCHITECTURE OF GAZI UNIVERSITY, Volume: 25   Issue: 3 Pages: 549-557   Published: SEP 2010.

6. Atıf;

            Cay VV, Ozan S, Gok MS, “The effect of hydrogen shielding gas on microstructure and abrasive wear behavior in the surface modification process using the tungsten inert gas method”, JOURNAL OF COATINGS TECHNOLOGY AND RESEARCH   Volume: 8 Issue: 1   Pages: 97-105   Published: JAN 2011. 

7. Atıf;

            Kyriakongonas AP, Papazoglou VJ, Pantelis DI., “Complete investigation of austenitic stainless steel multi-pass welding”, SHIPS AND OFFSHORE STRUCTURES   Volume: 6 Issue: 1-2   Pages: 127-144   Published: 2011.

8. Atıf;

Soares Tatagiba, Luiz Claudio; Goncalves, Renata Barbosa; Paranhos, Ronaldo, “Trends in the Development of Protective Gases Used in GMAW Welding”,SOLDAGEM& INSPECAO,Volume: 17,Issue: 3, Pages: 218-228,DOI: 10.1590/S0104-92242012000300006, Published: JUL-SEP 2012.

 

5. Yayın;(A5)

            A. DURGUTLU, H. OKUYUCU, B. GÜLENÇ, “Investigation of effect of the stand-off distance on interface characteristics of explosively welded copper and stainless steel”, Materials & Design, Vol. 29, Issue 7, Pages 1480-1484, 2008.

 

1. Atıf;

            Findik F., “Recent developments in explosive welding”, MATERIALS & DESIGN   Volume: 32   Issue: 3   Pages: 1081-1093   Published: MAR 2011.

2. Atıf;

            Zamani Ehsan; Liaghat Gholam Hossien, “Explosive welding of stainless steel-carbon steel coaxial pipes”, JOURNAL OF MATERIALS SCIENCE, Volume: 47, Issue: 2, Pages: 685-695, DOI: 10.1007/s10853-011-5841-9, Published: JAN 2012.  

3. Atıf;

            Honarpisheh M.; Asemabadi M.; Sedighi M., “Investigation of annealing treatment on the interfacial properties of explosive-welded Al/Cu/Al multilayer”, MATERIALS & DESIGN, Volume: 37, Pages: 122-127, DOI: 10.1016/j.matdes.2011.12.045, Published: MAY 2012.  

4. Atıf;

             Asemabadi, M.; Sedighi, M.; Honarpisheh, M., “Investigation of cold rolling influence on the mechanical properties of explosive-welded Al/Cu bimetal”, MATERIALS SCIENCE AND ENGINEERING A-STRUCTURAL MATERIALS PROPERTIES MICROSTRUCTURE AND PROCESSING  Volume: 558  Pages: 144-149   DOI: 10.1016/j.msea.2012.07.102   Published: DEC 15 2012.

5. Atıf;

            Bina, Mohammad Hosein; Dehghani, Farshid; Salimi, Mahmoud, “Effect of heat treatment on bonding interface in explosive welded copper/stainless steel”, MATERIALS & DESIGN,Volume: 45, Pages: 504-509, DOI: 10.1016/j.matdes.2012.09.037, Published: MAR 2013.   

 

6. Yayın;(A9)

A. DURGUTLU, B. GÜLENÇ ve K. TÜLBENTÇİ, “Ark Kaynağında Kaynak Hızının Nüfuziyete ve Mikroyapıya   Etkisi”, Turkish Journal of Engineering & Environmental Sciences, Cilt 23, Sayı 4, Sayfa 251-259, 1999.

1. Atıf;

Behçet Gülenç, Nizamettin Kahraman, “Wear behaviour of bulldozer rollers welded using a submerged arc welding process”, Materials and Design, 24,  537-542, 2003.

2. Atıf;

Boz, M., “Dry sliding wear behaviours of filled welded train rail”, METALLOFIZIKA I NOVEISHIE TEKHNOLOGII 29 (1): 105-114 JAN 2007.

3. Atıf;

            Kilincer S, Kahraman N., “MIG Weldıng Of Aısı 409 And C1010 Steel Usıng An Austenıtıc Electrode And Investıgatıon Of Theır Mechanıcal Propertıes”, JOURNAL OF THE FACULTY OF ENGINEERING AND ARCHITECTURE OF GAZI UNIVERSITY,  24 (1): 23-31, 2009.

4. Atıf;

            Ertan Tuner; Ertan Rukiye; Uguz Agah, “Effects of Welding Parameters on the Mechanical Properties of Inert Gas Welded 6063 Aluminum Alloys”, MATERIALS TESTING, Volume: 54, Issue: 1, Pages: 13-18, Published: 2012.  

 

7. Yayın;(A10)

            A. DURGUTLU, N. KAHRAMAN, B. GÜLENÇ, “Bakır ve çelik levhaların örtülü elektrod ve TIG kaynak yöntemleri ile birleştirilmesi ve birleştirmelerin arayüzey özelliklerinin incelenmesi”, G.Ü. Müh. Mim. Fak. Dergisi, Cilt 20, Sayı 2,  Sayfa 183-189, 2005.

1. Atıf;

            Kaya Y., An Investigation On Joinability Of The AISI 304 And AISI 430 Stainless Steel By Tig, Mig And Shielded Metal Arc Welding Methods” Journal Of The Faculty Of Engineering And Architecture Of Gazi University   Volume: 25   Issue: 3   Pages: 549-557 Published: SEP 2010.

 

8. Yayın;(D2)

A. DURGUTLU, B. GÜLENÇ, “Patlama Kaynağıyla Paslanmaz Çelik-Bakır Levhaların Kaynaklanabilirliği ve Patlayıcı Oranının Birleşme Arayüzeyine Etkisi”, G.Ü.T.E.F. Politeknik Dergisi, Cilt 5, Sayı 3, Sayfa 243-247, 2002.

1. Atıf;

B. GÜLENÇ,Investigation of interface properties and weldability of aluminum and copper plates by explosive welding method”, MATERIALS & DESIGN 29 (1): 275-278 2008.

 

9. Yayın;(D9)

            A. DURGUTLU, N. KAHRAMAN, B. GÜLENÇ, “Al-Si alaşımının TIG kaynağında darbeli akımın mikroyapı, sertlik, eğme ve çekme dayanımına etkisi”, G.Ü.T.E.F. Politeknik Dergisi, Cilt 11, Sayı 4, Sayfa 339-344, 2008.

1. Atıf;

            Kaya Y.,An Investigation On Joinability Of The AISI 304 And AISI 430 Stainless Steel By Tig, Mig And Shielded Metal Arc Welding Methods”, Journal Of The Faculty Of Engineering And Architecture Of Gazi University   Volume: 25   Issue: 3   Pages: 549-557 Published: SEP 2010.