Final book of the special issue
Transkript
Final book of the special issue
www.e-lse.org ISSN : 1305-8614 eLETTERS ELECTRONIC LETTERS on SCIENCE & ENGINEERING Special Issue BSW2016 Fifth Bozok Science Workshop Nano carbon materials and their applications Publishes two times a year Founding Editor Dr. Feyzullah TEMURTAS Editor-in-Chief Dr. Orhan ER Special Issue Editor Dr. Mustafa BOYUKATA 2016 '»oflHSHS raamtearâ Bozok University, Electrical and Electronics Engineering Erdoğan Akdag Kampus, 66200, Yozgat, Turkey Phone : (354) 242 1001 / 7950-7951 Fax : (354) 242 1005 e-M ail: elsejournal@gmail.com, e-lse@e-lse.org e-LSE Electronic Letters on Science & Engineering 12 (2 ) (2 0 1 6 ) e-L^ E Available online at www.e-lse.org Electronic Letters on Science & Engineering An International Open Access Journal Bozok University, Department o f Electrical and Electronics Engineering, 66100, Yozgat, TURKEY. _____________________________Volume 12, Number 2, 2016_____________________________ E d ito r -in -C h ie f Dr. Orhan ER Bozok University, Yozgat, TURKEY E-mail: orhan.er@bozok.edu.tr http://abis.bozok.edu.tr/cv.aspx?id=80 G u e s t E d ito r fo r S p e c ia l I s s u e Dr. Mustafa BOYUKATA Bozok University, Yozgat, TURKEY E-mail: boyukata@yahoo.com F o u n d in g E d ito r Dr. Feyzullah TEMURTAS Bozok University, Yozgat, TURKEY E-mail: temurtas@gmail.com A s s o c ia te E d ito r s Dr. M. Serdar Başcıl Bozok University, Electrical & Electronics Engineering, Yozgat, TURKEY Dr. Halit Öztekin Bozok University, Computer Engineering, Yozgat, TURKEY Dr. Ahmet Sertol Köksal Bozok University, Computer Engineering, Yozgat, TURKEY Dr. Abdullah Çetin Tanrıkulu Dicle University, Department of Chest Diseases, Diyarbakır/ TURKEY Dr. Abdurrahman Abakay Dicle University, Department of Chest Diseases, Diyarbakır/ TURKEY Dr. İbrahim Özçelik Sakarya University, Computer Engineering, Adapazarı, TURKEY Dr. Aysegul Alaybeyoglu Yilmaz İzmir Katip Çelebi University, Computer Engineering, İzmir, TURKEY Dr. Zabit Musayev Bozok University, Electrical & Electronics Engineering, Yozgat, TURKEY Dr. Mustafa Yaz Bozok University, Electrical & Electronics Engineering, Yozgat, TURKEY Dr. Caner Kaya Özer Bozok University, Department of Geological Engineering, Yozgat, TURKEY Dr. Onursal Cetin Bozok University, Electrical & Electronics Engineering, Yozgat, TURKEY Dr. Mehmet Bulut Electricity Generation Company, Research Planning and Coordination, Ankara,TURKEY Dr. Nejat Yumuşak Sakarya University, Computer Engineering, Adapazarı, TURKEY Dr. Recep Artır Marmara University, Metallurgy and Materials Engineering, Ist., T u R k EY Dr. Cemil Öz Sakarya University, Computer Engineering, Adapazarı, TURKEY Dr. Fatih Dumludağ Marmara University, Physics Department, Istanbul, TURKEY Dr. Seydi Vakkas Üstün Adıyaman University, ElectricalElectronics Eng., Adıyaman, TURKEY Dr. Kursat Ayan Sakarya University, Computer Engineering, Adapazarı, TURKEY Dr. Hasan Temurtaş Dumlupinar University, Computer Engineering, Kütahya, TURKEY Dr. Ali Gülbağ Sakarya University, Computer Engineering, Adapazarı, TURKEY Dr. Davut Erdem Şahin Bozok University, Machine Engineering, Yozgat, TURKEY Dr. İsmail Koçak Bozok University, Department of Geological Engineering, Yozgat, TURKEY Dr. Senol Pazar Anka Bilişim ve Danışmanlık Hizmetleri San. 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Şti., İstanbul, TURKEY Dr. Cihat Tasaltin TUBITAK MAM Malzeme Enstitüsü, Sensör Teknolojileri Lab, Kocaeli, TURKEY Dr. Rasit Koker Sakarya University, Electrical & Electronics, Adapazarı, TURKEY Dr. İsmihan Yusubov (retired) Sakarya University, Computer Engineering, Adapazarı, TURKEY Dr. Hamdi Melih Saraoğlu Dumlupinar University, ElectricalElectronics Eng., Kütahya, TURKEY Dr. Ayhan İstanbullu Balıkesir University, Computer Engineering, Balıkesir, TURKEY Dr. Mehmet Ali Ebeoğlu Dumlupinar University, ElectricalElectronics Eng., Kütahya, TURKEY Dr. Fatma Latifoglu Erciyes University, Biomedical Engineering, Kayseri, TURKEY Dr. Alaettin Ozer Bozok University, Machine Engineering, Yozgat, TURKEY Dr. Ersin Kolay Bozok University, Department of Geological Engineering, Yozgat, TURKEY Dr. Nursel Öksüz Bozok University, Department of Geological Engineering, Yozgat, TURKEY Dr. Tanzer Eryilmaz Bozok University, Biosystem Engineering, Yozgat / TURKEY Dr. İbrahim Öz Türksat Uydu Haberleşme ve İşletme A.Ş., Ankara, TURKEY P ublishing office: e-LSE.org, Bozok University, Department of Electrical and Electronics Engineering, 66100, Yozgat, TURKEY. [Phone: (+90) (354) 2421001; Fax: (+90)(354) 242 1005]. A d v e rtis in g in fo rm a tio n : If you are interested in advertising or other commercial opportunities please e-mail e-lse@e-lse.org and your enquiry will be passed to the correct person who will respond to you within 48 hours. P ublication info rm atio n: Electronic Letters on Science & Engineering (ISSN 1305-8614). For 2016, volume 12 (2 issues) is scheduled for publication. e-LSE Electronic Letters on Science & Engineering Volume 12, Number 2, 2016 Special Issue BSW2016 Fifth Bozok Science Workshop Nano carbon materials and their applications April 28-29, 2016 Bozok University, Yozgat TURKEY Preface to the Special Issue This special issue of Electronic Letters on Science & Engineering (e-LSE), An International open access Journal, includes the abstracts of the presentations at the workshop, BSW2016 (Fifth Bozok Science Workshop: Nano Carbon Materials and their Applications) held during April 28-29, 2016 at Bozok University, Yozgat, Turkey. At the workshop the discussions were based on active researches from basic to several applied fields. The fundamental scientific philosophy behind the meeting, Bozok Science Workshops, is the stimulation of cross-disciplinary flow of knowledge and expertise from both the experimental and theoretical standpoints. At the first, second, third and fourth workshops the main topics were chosen as "Boron studies in nano-scale" for BSW2010, "Computational Chemical Physics" for BSW2011, "Computational Studies on Structure and Dynamics from Nuclei to Biological Molecules" for BSW2012 and "Studies on Structure and Dynamics from Nuclei to Clusters" for BSW2013, respectively. "Nano carbon materials and their applications" was considered as special topic for BSW2016. The studies on boron, computational chemical physics, atomic/molecular and cluster systems were still welcome again to BSW2016. Even the workshop can now be called as a traditional event; the abstract books were used to be printed right after the workshop took action for the previous ones. As for the workshop planned to be held as BSW2016; the abstracts are prepared as a special issue of e-LSE. All referees have been selected from the Scientific Committee (consisting 49 experts and 6 of them from out of Turkey) of BSW2016 to review the abstracts before the workshop. In order to take part at the above mentioned special issue; presenting the selected abstract is the main principle. By means of the workshop and this special issue of e-LSE, we hope to give opportunity to the authors to improve the quality of their works also give the same opportunity to the referees to make critics and to be aware of the active studies submitted to the meeting. Announcement on the special issue is on the workshop circulars right from the start, at web page and in the shared emails. In total, 22 reviewed and presented abstracts are published in this issue. This e-LSE issue may be a good reference material and be a great source for the experts who are interested in the discussed topics. I am pleased to be Guest Editor of this special issue of e-LSE. I would like to thank to the Scientific Committee for the generous support for recommending invited lectures, subjects and sharing their opinion to improve the workshop. Especially, I would like to thank to the members accepting my invitations to be referee for selecting the abstracts for this volume, and to the members of the Organizing Committee for their help. Finally, I would like to thank to Founding Editor Dr. Feyzullah Temurtaş and Editor-in- Chief Dr. Orhan Er for helping me in managing this issue. D r. M u s ta fa B ö y ü k a ta , G u e s t E d itor A b s tr a c t L is t fo r e -L S E (V o lu m e 1 2 , N u m b e r 2 , 2 0 1 6 ) Ni-Fe M etalik Katalizörün Sentezlenmesi ve NaBH 4 H idrolinde Kullanılması Ömer ŞAHIN, Orhan BAYTAR, M ehmet Sait İZGİ, A. A bdullah CEY H A N ............................................................................................... 3 Reconstruction and Physical Properties o f M onovancacies in Graphene Nanoribbons M ehmet Ali BAYKAL, Savaş B ER B E R ................................................................................................................................................................ 4 Karbon Nanotüplerin M avi Faz-Sıvı Kristalin Termal Stabilitesi Üzerine Etkisi Em ine KEMİKLİOĞLU, Liang-Chy C H IE N .......................................................................................................................................................5 Grafen Alan Etkili Transistörlerin M ikrofabrikasyon Süreci ve Litografik Kalıntıların SERS Yöntemiyle İncelenmesi Hidayet Ç E T İN ........................................................................................................................................................................................................... 6 A New M ethod fo r M olecular Orientation: Photolithography Süleyman Y IL M A Z ................................................................................................................................................................................................... 7 Nano Boyutta Sentezlenen Co-B-Ti-F Katalizörleri Varlığında Sodyum Borhidrür H idrolizinin İncelenmesi M ehmet Sait İZGİ, Ömer ŞAHİN, Erhan O N AT................................................................................................................................................. 8 Investigations o f the Role o f Hyaluronan on the Pathology o f Pulmonary A rtery H ypertension in R a t M odel Pınar ALTIN, Gamze Karadaş DURSUN, Muazzez Derya ANDEDEN, N ihat KALAY, M etin A Y TE K İN ........................................9 E levated Hyaluronan Levels in Patients with Acute M yocardial Infarction Pınar ALTIN, Gamze Karadaş DURSUN, Göktuğ SAVAŞ, N ihat KALAY, M etin A Y T E K İN .............................................................. 10 Electron M otion Control in M g-Porphyrin via Structured Beam Fatih KOÇ, Koray K Ö K SA L ................................................................................................................................................................................... 11 Investigation o f Structural and Optical Properties o f Semiconductor Polymer poly (5-(2-ethylhexyloxy)-2-methoxy-cyanoterephthalylidene) Hatice Kanbur ÇAVUŞ, Hatice A R I....................................................................................................................................................................... 13 Free Energy Calculation fo r Gramicidin A (GA) Channel with no Equilibrium Requirement M urat ÇAVUŞ, M urat ŞAHAN, Turgut B A Ş T U Ğ ............................................................................................................................................ 14 Biosorption o f M ethyl Orange Dye by Yellow M ustard Seeds (Sinapis A lba L.) Serpil SA V C I.................................................................................................................................................................................................................15 H F and D F T Analysis o f Structure and Energetics o f Zn(H2O)nfo r n=1-10 Salih CINAKLI, M ustafa BÖYÜKATA, Yılmaz D A Ğ D EM İR.........................................................................................................................16 The Effect o f M agnetization on X - R ay Fluorescence Cross Sections Paşa YALÇIN, M ehmet TERZİ, Ali G Ü R O L ........................................................................................................................................................17 Electrical and Optical Explorations o f a New Atmospheric Plasm a Device Erol KURT, Tolga ONCU, H. Hilal K U R T ............................................................................................................................................................ 19 Ising Systems from M agnetic Phase Transitions to M agnetic Nanostructures M ustafa K E SK İN ......................................................................................................................................................................................................... 21 M agnetic Properties o f M ixed Spin (1, 2) H exagonal Ising Nanowire System M ehmet ERTAŞ, M ustafa K E S K İN ........................................................................................................................................................................ 22 Quantum Chemical Study fo r Am ine Derivatives Fatma K A N D E M İR Lİ................................................................................................................................................................................................ 23 Synthesis and Theoretical Study o f 4-Acetyl-5-(2-Naphtyl)-2,3-dihydro-2,3-Furandione with Some Nitrogenous Nucleophiles M urat SARACOGLU, Fatma KANDEM İRLİ....................................................................................................................................................... 24 Farklı Boylardaki Zigzag Tek Duvarlı Karbon Nanotüplerin Elektronik Yapıları Necati V A R D A R ......................................................................................................................................................................................................... 26 Structural Properties o f Some Transition M etal Clusters M eral E R Y Ü R E K ........................................................................................................................................................................................................ 27 Organic Dyes fo r TiO2 Dye-Sensitized Solar Cells M ücella ÖZBAY KARAKUŞ, Tolga ÖNEN, H idayet ÇETİN 28 e-LSE Electronic Letters on Science & Engineering 12 (2) (2016) < - L S E Available online at www.e-lse.org Special Issue BSW2016 Fifth Bozok Science Workshop: Nano Carbon Materials and Their Applications Bozok Science Workshop 2016, Yozgat, April 28-29, 2016. Ni-Fe METALİK KATALİZÖRÜN SENTEZLENMESİ ve N aB H HİDROLİNDE KULLANILMASI Ömer ŞAHİN 1, Orhan BAYTAR 1, Mehmet Sait İZGİ 1 ve A. Abdullah CEYHAN 2 1 Siirt Üniversitesi Mühendislik Fakültesi Kimya Müh. Böl./Siirt, Türkiye. 2 Selçuk Üniversitesi Mühendislik Fakültesi, Kimya Müh. Böl. /Konya, Türkiye. Abstract: Fosil yakıtların kaynaklarının aşırı derecede tüketilmesi sonucu, atmosfere verilen CO 2 gazı ve diğer gazların neden olduğu küresel ısınma ve bu gazların meydana getirdiği çevre kirliliğinden dolayı yenilebilir ve temiz bir enerji kaynağı gereksinimi doğmuştur. Bu nedenle farklı metotlarla kolayca depolanabilen hidrojen temiz ve çevre dostu olarak ısıtmada, ulaşımda, mekanik güçte ve elektrik üretiminde yeni bir enerji kaynağı olarak dikkat çekmektedir. Çeşitli katı metal hidrürler hidrojen depolayıcısı olarak kullanılmakta ve bunlar arasında en avantajlısı da açığa çıkardığı hidrojenin yarısının sudan geldiğinden dolayı en avantajlısı NaBH 4 ’dür. NaBH 4 hidrolizinde çeşitli katalizörler kullanılmaktadır. Bu katalizörler arasında en ekonomik olanlardan biride Fe katalizörü içeren katalizörlerdir. Bu çalışmada NaBH 4 hidrolizinde kullanılmak üzere Ni-Fe ikili metal katalizör hazırlanmış ve kullanılmıştır. Ni-Fe katalizörü M C I 2 .6 H 2 O ve FeCI3.4 H2O metallerinin sulu ortamda NBH 4 ile azot ortamında indirgenmesi sonucu elde edilmiştir. NaBH4 hidrolizinde NaOH miktarı, katalizör miktarı, NaBH 4 miktarı ve sıcaklık parametrelerin etkisi incelenmiştir. Hidroliz çalışmalarında çözelti ortamında %1 NaOH varlığının NaBH4 hidrolizinde etkisinin en iyi olduğu belirlenmiştir. Katalizör miktarının artması ile açığa çıkan hidrojen miktarının hızlı bir şekilde arttığı ve hidrojen dönüşümünün % 90’nın üzerinde olduğu tespit edilmiştir. Buna bağlı olarak reaksiyon derecesinin de 0. dereceden olduğu belirlenmiş ve aktivasyon enerjisi de 57.75 kJ/ mol olduğu yapılan kinetiksel hesaplamalarda belirlenmiştir. Sentezlenen Ni-Fe katalizörü düşük maliyetli ve endüstriyel olarak uygulanabilir olduğundan dolayı büyük bir avantaja sahip olduğu düşünülmektedir. Keywords: NaBH 4; Katalizör; Ni-Fe; Hidroliz; Hidrojen *Corresponding author; Tel.: +(90) (484) 223 12 24 /3000 E-mail: sahinomer2002@yahoo.com 3 ISSN 1305-8614 © 2016 www.e-lse.org All rights reserved. e-LSE Electronic Letters on Science & Engineering 12 (2) (2016) < - L S E Available online at www.e-lse.org Special Issue BSW2016 Fifth Bozok Science Workshop: Nano Carbon Materials and Their Applications Bozok Science Workshop 2016, Yozgat, April 28-29, 2016. RECONSTRUCTION AND PHYSICAL PROPERTIES OF MONOVANCACIES IN GRAPHENE NANORIBBONS Mehmet Ali BAYKAL*1, Savaş BERBER 1 1 Gebze Technical University, Faculty o f Science, Physics Department, 41400 Gebze/KOCAELİ Abstract: We have investigated the reconstruction, electronic and magnetic properties of graphene nanoribbons using density functional theory structure optimization and electronic structure calculations. In order to obtain proper edge states and their spin polarizations, we generate wide enough edge hydrogenated graphene nanoribbons that have not only mostly considered armchair and zigzag geometries both also other chiralities. First, the reconstruction of monovacancies in graphene nanoribbons are investigated by directed structure optimizations to obtain all possible reconstruction geometries that differ by the orientation of the new bonds that are formed during the self-healing of the defect. We find that the reconstruction requires large structural changes to accommodate the strain of the self-healing, and the straight forward structure optimizations that start from an ideal vacancy often fails to find possible reconstructed atomic structures. The reconstruction energies are closely related to the orientation of the new bond and thus to the chirality of the nanoribbon. Since the reconstruction still leaves an unsaturated bond, there is a spin polarization at the vacancy site. The magnetic ordering of this localized spin with the spins at the edges is searched by constraining initial spins in our selfconsistent calculations. The total energy of the ferromagnetically and antiferromagnetically coupled edges and the vacancy is compared to obtain energetically most stable magnetic structure for each chirality and the vacancy orientation. We find that the magnetic ordering to depend on the chirality and the nanoribbons prefer to have antiferromagnetic coupling between the spin polarized regions. Keywords: Graphene Nanoribbons, Defects, Density Functional Theory, Nanomagnetism. *Corresponding author; Tel.: +(90) 541 811 1234, E-mail: mbaykal@gtu.edu.tr 4 ISSN 1305-8614 © 2016 www.e-lse.org All rights reserved. e-iJStL Electronic Letters on Science & Engineering 12 ( 2 ) (2 0 16 ) ^-lse Available online at www.e-lse.org Special Issue BSW2016 Fifth Bozok Science Workshop: Nano Carbon Materials and Their Applications Bozok Science Workshop 2016, Yozgat, April 28-29, 2016. KARBON NANOTÜPLERİN MAVİ FAZ-SIVI KRİSTALİN TERMAL STABİLİTESİ ÜZERİNE ETKİSİ Em ine K EM İK LİO Ğ LU 1, Liang-Chy CH İEN2 1Celal Bayar Üniversitesi, Mühendislik Fakültesi, Biyomühendislik, Manisa, 2Liquid Crystal Institute and Chemical Physics Interdisciplinary Program, Kent State University, OH, USA A bstract: Sıvı kristaller uzun çubuksu yapıdaki moleküller olup, doğada katı ve sıvı fazlar arasında bir ara faz olarak gözlem lenebilen kimyasal maddelerdir. Moleküllerinin belirli yöndeki dizilişleri sayesinde, dışarıdan bir elektrik akımı ile uyarıldığında üzerinden geçen ışığın özelliğini değiştirme özelliğine sahiptirler. Bu özelliklerinden yararlanılarak, günümüzde ışık geçirgenliği ayarlanabilir pencerelerin yanı sıra televizyon, telefon, tablet bilgisayarlar, yazılabilir elektronik tablet ve elektronik kitap gibi dokunmatik ekranlı cihazlarda kullanılabilirler. Uygulamalarda LCD ekran ism iyle önemli bir yer işgal eden sıvı kristaller kendi içerisinde temelde termotropik ve liyotropik olmak üzere iki ana faz içerirler. Faz değişimi liyotropik sıvı kristallerde konsantrasyon ve sıcaklığa bağlı olarak gerçekleşirken termotopik sıvı kristallerde sadece sıcaklığa bağlıdır. Sıcaklık değişimine karşı hassas olan ve artan sıcaklıkla sıvının, azalan sıcaklıkla da katının özelliklerine benzer özellikler gösteren termotropik sıvı kristal molekülleri de kendi içerisinde smektik, nematik ve kiral nematik (kolesterik) fazlar olmak üzere de değişik fazlar içerir. Bununla birlikte, termotropik sıvı kristal fazı içerisinde, artan sıcaklıkla birlikte, smektik veya kolesterik faz ile izotropik faz arasında çok küçük bir sıcaklık aralığında görülen ve sıvı kristal moleküllerinin kendiliğinden çifte sarmal yapı oluşturmasıyla meydana gelen diğer bir ara faz olan mavi faz sıvı kristaller, nematik sıvı kristallerle karşılaştırıldığında, elektrik akımına karşı tepki süresinin çok daha az olması, görünür bölgede seçici yansıma vermesi, optikçe izotropik olması gibi mükemmel elektro-optik özelliklere sahip olmasından dolayı lazerden, objektif lenslerine kadar pek çok uygulamada kullanılmaktadır. Bu avantajının yansıra, bu fazın çok dar bir sıcaklık aralığında görülmesi, uygulamalarında bir sınırlamaya neden olmaktadır. Sıcaklık aralığını genişletmek amacıyla, günümüzde polimer stabilizasyonu [1], ve nano parçacık eklenmesi [3] gibi değişik yöntemler kullanılmaktadır. Bu çalışmada, hazırlanan m avifaz-sıvı kristalleri içerisine değişik konsantrasyonlarda tek (SW CNT) ve çok duvarlı (MW CNT) karbon nanotüpleri eklenerek, söz konusu karbon naotüplerin mavi faz sıvı kristalinin termal stabilizasyonu üzerine etkisi incelenmiştir. M avi-faz sıvı kristal numunesine içerisine %0.001 ile %0.05 aralığındaki konsantrasyonlarında eklenen karbon nanotüplerin, mavi fazın gözlenebilme sıcaklık aralığını 30oC ’den 42oC ’ye çıkardığı gözlemlenmiştir. Ayrıca yapılan çalışmada karbon nanotüp varlığında polimer stabilizasyonu da yapılarak numunenin dalga boyu stabil hale getirilmiştir. 60 55 Keywords: sıvı kristal, karbon namotüp, sıcaklık aralığı 50 45 R eferences: 35 3 2 to 1. 30 25 2. 20 15 3. 10 5 0 Karbon- nanotüp konsantrasyonu (% ağırlık Kikuchi H, Yokota M, Hisakado Y, et al. Polymerstabilized liquid crystal blue phases. Nat. 2002;1:64-68. Kem iklioglu E., Chien L.C., Stabilization o f cholesteric blue phases using polymerized nanoparticles, PRE, 89, 042502 (2014). Kemiklioglu E. Chien L.C. Electro-optical properties o f carbon nanotubedoped polymer-stabilised blue phase liquid crystal IPS cell, DOI 10.1080/02678292.2016.1158329. *Corresponding author; Tel.: +(90) 2362012457, E-mail: emine.kemiklioglu@cbu.edu.tr 5 ISSN 1305-8614 © 2016 www.e-lse.org All rights reserved. e-LSE Electronic Letters on Science & Engineering 12 (2 ) (2 0 16 ) <-LSE Available online at www.e-lse.org Special Issue BSW2016 Fifth Bozok Science Workshop: Nano Carbon Materials and Their Applications Bozok Science Workshop 2016, Yozgat, April 28-29, 2016. MICROFABRICATION PROCESS of GRAPHENE FIELD EFFECT DEVICES and INVESTIGATION of LITHOGRAPHIC RESIDUES by SURFACE ENHANCED RAMAN SPECTROSCOPY Hidayet ÇETİN Bozok University, Art & Science Faculty, Department o f Physics, 66200, Yozgat, TURKEY Abstract: At the fabrication of Graphene Field Effect Transistor (GFET), microfabrication process has been extensively used. Microfabrication process has usually left impurities. However, impurities could be much more important at graphene-like two dimensional systems. In this work, pristine and photolithography-applied graphene samples were investigated by Surface Enhanced Raman Spectroscopy (SERS) which is a powerful method to detect molecules even if only one molecule [1 2]. Furthermore, after the photolithography process, to obtain more clean graphene surface, several methods were applied. The obtained electrical and SERS results were associated and compared to each other’s to propound a new lift-off solvents. Keywords: Graphene; SERS; Lithographic Residues. References [1] D. L. Jeanmaire and R. P. Vanduyne, Surface Raman Spectroelectrochemistry, Journal of Electroanalytical Chemistry and Interfacial Electrochemistry, 84, 1-20, 1977. [2] X. M Qian and S. M. Nie, Single-molecule and Single-nanoparticle SERS: from fundamental mechanism to biomedical applications, Chemical Society Reviews, 37, 912-920, 2008. *Corresponding author; Tel.: +(90) 533724 52 48, E-mail: hidayet.cetin@bozok.edu.tr 6 ISSN 1305-8614 © 2016 www.e-lse.org All rights reserved. e-LSE Electronic Letters on Science & Engineering 12 (2) (2016) < - L S E Available online at www.e-lse.org Special Issue BSW2016 Fifth Bozok Science Workshop: Nano Carbon Materials and Their Applications Bozok Science Workshop 2016, Yozgat, April 28-29, 2016. NEW METHOD FOR MOLECULAR ORIENTATION OF LIQUID CRYSTALS: PHOTOLITHOGRAPHY Suleyman YILMAZ 1 1Aksaray University, Faculty o f Education, Department o f Primary Education 68100, Aksaray, TURKEY Abstract: In this study, photolithography was applied on molecular alignment of Liquid Crystals (LCs) as a new method outside of conventional molecular orientation. Planar and homeotropic orientation were studied for the molecular orientation. In the photolithography, coating polyimide, UV exposing, chemical etching and curing process were applied to provide micro-grooving surface, respectively. Three type LC cells were made by provided rubbing and photolithography for planar alignment and also homeotropic alignment. Electro-optical properties of the liquid crystal were examined under the electric field at phase transition region for three type LC Cells at the fixed temperature points, 300 K, 315K, and 325 K. Experimental setups was adjusted to measure optical transitions with thermal, electric and optic units. The photolithographic method was found more effective and acceptable than the other conventional methods for molecular orientation. It was also observed that the molecular anisotropy and surface anchoring of liquid crystal was affected considerably by the applied electric field. Keywords: Liquid Crystals; Polyimide Coating; Photolithography; Electro-Optical Properties. *Corresponding author; Suleyman YILMAZ, Tel.: +(90) 3822883358 , E-mail: yilmazsuleyman@yahoo.com 7 ISSN 1305-8614 © 2016 www.e-lse.org All rights reserved. e-LSE Electronic Letters on Science & Engineering 12 (2) (2016) < - L S E Available online at www.e-lse.org Special Issue BSW2016 Fifth Bozok Science Workshop: Nano Carbon Materials and Their Applications Bozok Science Workshop 2016, Yozgat, April 28-29, 2016. NANO BOYUTTA SENTEZLENEN Co-B-TiO 2 ve Co-B-Ti-F KATALİZÖRÜ VARLIĞINDA SODYUM BORHİDRÜR HİDROLİZİNİN İNCELENMESİ Mehmet Sait İZGİ1, Ömer ŞAHİN1, Erhan ONAT 2 1Siirt Üniversitesi Mühendislik Mimarlık Fak. Kimya Mühendisliği Bölümü 2Bitlis Eren Üniversitesi, Fen Bilimleri Enstitüsü Abstract: Kimya endüstrisinde üretilen ürünlerin gerçekleştiği reaksiyonlarda genellikle katalizör kullanılmaktadır. Bunun temel nedenlerinden biriside katalizörün reaksiyonları daha kısa sürede ve daha yüksek verimle, daha az enerji harcamasıdır. Bu çalışmada sodyum bor hidrürden hidrojen üretimine yönelik yeni sentezlenen Co-B-TiO 2 ve Co-B-TiO 2 -F katalizörleri kullanılarak gerçekleştirildi. Bu katalizörlerin katalitik aktivitesini, pahalı katalizörlerin seviyesine yaklaştırmak amacıyla söz konusu katalizörler normal literatür bilgileri ışığında sentezlendikten sonra farklı çözücüler kullanarak katalizörlerin nano boyutta üretilmesi sağlandı. Ayrıca bunların katalitik aktivitelerini artırmak amacıyla plazma ortamına tabi tutularak aktifliğinin artırılması sağlandı. Daha sonra sodyum bor hidrürden farklı sıcaklıklarda hidrojen üretimine yönelik elde edilen değerler kullanılarak sentezlenen katalizörlere yönelik tepkime dereceleri aktivasyon enerjisi bulundu. Sodyum bor hidrürden hidrojen üretimine yönelik olarak hidrolizi etkileyen NaOH etkisi, NaBH 4 miktarı etkisi, plazma etkisi, sıcaklık etkisi ve katalizör miktarı etkileri gibi parametreler ayrı ayrı incelendi. Katalizörlerin karakterizasyonu için BET (yüzey analizi), Taramalı Elektron Mikroskobu, X-ışını ve IR analizleri ile katalizörlerin yapıları incelendi. BET yüzey analizinde saf suda sentezlenen Co-BTiO 2 24.158 m2/g iken florlu ortamda aktifleştirilen Co-B-TiO 2 -F ise 170.103 m2/g olarak bulunmuştur. Buna bağlı olarak reaksiyon derecesi 0,66 ve aktivasyon enerjisi de 41.3kJ/ mol olarak belirlenmiştir. Keywords: SEM; Hidrojen; M ikro dalga; Sodyum Borhidrür; Katalizör. *Corresponding author; Tel.: +(90) (484) 223 12 24 /3023 E-mail: saitizgi@gmail.com 8 ISSN 1305-8614 © 2016 www.e-lse.org All rights reserved. e-LSE Electronic Letters on Science & Engineering 12 (2 ) (2 0 16 ) <-LSE Available online at www.e-lse.org Special Issue BSW2016 Fifth Bozok Science Workshop: Nano Carbon Materials and Their Applications Bozok Science Workshop 2016, Yozgat, April 28-29, 2016. INVESTIGATIONS OF THE ROLE OF HYALURONAN ON THE PATHOLOGY OF PULMONARY ARTERY HYPERTENSION IN RAT MODEL Pınar A L T IN 1, G am ze Karadaş D U R S U N 1, M uazzez D erya A N D E D E N 1, N ihat K A L A Y 2, M etin A Y T E K İN 1* 1Department of Medical Biology, Erciyes University School o f Medicine, Kayseri, TURKEY 2Department of Cardiology, Erciyes University School of Medicine, Kayseri, TURKEY Abstract: Background: Idiopathic pulmonary arterial hypertension (IPAH) is a progressive disease that leads to deterioration in cardiopulmonary function and premature death from right ventricular failure. The pathogenesis o f IPAH is poorly understood. The pathobiologic features o f the disease are aberrant cell proliferation, inflammation and vascular remodeling. Extracellular matrices (ECMs) serve an important role in cell proliferation and migration. A major component o f most ECMs is the glycosam inoglycan hyaluronan (HA). W e hypothesize that abnormalities in HA levels, modification, and fragmentation result in major regulatory switches causing abnormal SMC proliferation, inflammation, and vascular remodeling in IPAH. This work was supported by The Scientific and Technological Research Council o f Turkey (TUBITAK) 112S464. M ethods: W hile rats in Group 1 (n=12) were provided to breathe with air (normoxia), rats in Group 2 (n=12) were made PAH by feeding in plexiglass chambers which was filled with %10 O 2 for 3,5 weeks after subcutaneously injection 20 mg/kg Sugen-5416. Pulmonary artery pressure (PAP) was recorded with Powerlab device. Lung tissues obtained from PAH and control rats were inflated and embedded in paraffin blocks. The sections were stained with hematoxylin and eosin (H&E) for morphological examination and stained for HA binding protein. Circulation HA was measured by ELISA and HAS gene expressions were examined by Real Time PCR. Results: Pulmonary artery pressures in PAH hypoxia SU-5416 rat m odel was founded higher compared to controls. [Pulmonary artery pressure (PAP) mmHg, m ean±SD PAH 19.03 ± 1.77, control 10.58 ± 0.40 p=0.00012]. According to ELISA results, statistically higher amount o f HA was determined in hypoxia SU -5416 rat model animals compared to the controls [HA ng/mL, mean±SD PAH 3.8 ± 0.41, control 1.96 ± 0.31 p<0.0015]. The accumulation o f HA m olecule was detected especially in pulmonary arteries which were obtained from PAH rat models. This intensity was higher in the site where especially thickening and smooth muscle cell proliferation were occurred. The expression o f HAS1 and HAS3 protein weren’t determined in either control or hypoxia Sugen-5416 PAH rats, however, H AS2 protein expression was founded significantly higher in hypoxia Sugen-5416 rats compared to controls [HAS2 protein expression, mean±SD: PAH 2.0 ± 0.5, control 0.86 ± 0.07 p=0.0493]. These results show that hyaluronan accumulation in PAH rat model lung is caused by higher working o f HAS2 enzyme. There were not big differences in Hyal2 m RNA expression between hypoxia Sugen-5416 PAH rat models and its control [Hyal2 m R N A expression, mean±SD: PAH 10.9 ± 0.92, control 8.2 ± 1.32 p = 0.115], however, HAS2 mRNA expression was found statistically different in hypoxia Sugen-5416 PAH rat model compared to controls [HAS2 m RNA expression, mean±SD: PAH 82.3 ± 6.29, control 41.3 ± 6.0 p=0.00083]. C onclusion: Our findings suggest that high levels o f HA in hypoxia Sugen 5416 PAH rat model might have an important role in the pathobiology o f the disease and could serve as a biomarker o f cellular proliferation and vascular remodeling. *Corresponding author; Tel.: +(90) 352 2076666/23335, E-mail: maytekin@erciyes.edu.tr 9 ISSN 1305-8614 © 2016 www.e-lse.org All rights reserved. e-LSE Electronic Letters on Science & Engineering 12 (2) (2016) < - L S E Available online at www.e-lse.org Special Issue BSW2016 Fifth Bozok Science Workshop: Nano Carbon Materials and Their Applications Bozok Science Workshop 2016, Yozgat, April 28-29, 2016. ELEVATED HYALURONAN LEVELS IN PATIENTS WITH ACUTE MYOCARDIAL INFARCTION Pınar ALTIN1, Gamze Karadaş DURSUN1, Göktuğ SAVAŞ2, Nihat KALAY2, Metin AYTEKİN1* 1Department o f Medical Biology, Erciyes University School o f Medicine, Kayseri, TURKEY 2Department o f Cardiology, Erciyes University School o f Medicine, Kayseri, TURKEY Abstract: Background: The role of hyaluronan (HA) has previously demonstrated in patients with mitral stenosis and pulmonary hypertension. It is considered that increased levels of HA are associated with both cardiac and pulmonary tissue damage. However, there is no data about HA levels in patients with acute myocardial infarction (AMI). In this study, we aimed to investigate hyaluronan levels and its kinetics in patients with AMI. This work was supported by The Scientific Research Projects Coordination Unit of Erciyes University TSA-12-3985. Methods: This prospective study was conducted from October 2012 and July 2014 and enrolled consecutive 56 patients with AMI. Plasma levels of HA were measured at baseline, 7th day and first month after AMI. Echocardiographic examinations were performed at baseline and first month. Results: The baseline HA level was 33.2 ± 2.8 ng/ml and at 7 days HA levels were significantly higher compared to baseline [Plasma HA (ng/ml, mean±SD): 7 days 46.2±4.3, baseline 33.2±2.8, p=0.014]. HA levels at 30th days were found significantly higher compared to baseline [Plasma HA (ng/ml, mean±SD): 30th days 50.1±3.9, baseline 33.2±2.8, p=0.002]. However, There was no statistically difference on HA levels between at 7 and 30 days [Plasma HA (ng/ml, mean±SD): 30th days 50.1±3.9, baseline 46.2±4.3, p=0.589]. There were a positive interaction between baseline and 7th day HA levels and peak CK, CKMB, AST, LDH and troponin levels. Similarly, significant correlation was found between 30th day HA levels and peak CK (r=0.377, p=0.004), CKMB (r=0.429, p=0.001), AST (r=0.429, p=0.001), LDH (r=0.389, p=0.005), and peak troponin levels (r=0.360, p=0.006). Conclusion: This is the first article showing that plasma HA levels increase in patients with AMI. Our results suggest that HA might be a promising biomarker of myocardial damage. Keywords: Hyaluronan; Acute Myocardial Infarction; anterior w all infraction; biomarker. *Corresponding author; Tel.: +(90) 352 2076666/23335, E-mail: maytekin@erciyes.edu.tr 10 ISSN 1305-8614 © 2016 www.e-lse.org All rights reserved. e-LSE Electronic Letters on Science & Engineering 12 (2) (2016) < - L S E Available online at www.e-lse.org Special Issue BSW2016 Fifth Bozok Science Workshop: Nano Carbon Materials and Their Applications Bozok Science Workshop 2016, Yozgat, April 28-29, 2016. ELECTRON MOTION CONTROL IN Mg-PORPHYRIN VIA STRUCTURED BEAM Fatih KOÇ 1 and Koray KÖKSAL2* 1 Department o f Physics, Bitlis Eren University, Bitlis 13000, Turkey 2 Materials and Metallurgical Engineering Department, Bitlis Eren University, Bitlis 13000, Turkey Abstract: Tuning the electron motion is the remarkable subject of the recent studies on the nanostructures. Particularly in last decade, the studies on the twisted light (orbital angular momentum (OAM) carrying light) and circularly polarized light (spin angular momentum (SAM) carrying light) show that, these structured light beams bring great advantages for the manipulation of electron motion in the quantum structures [1,2,3]. An electron moving in a nanostructure is able to gain a net circulation as a result of SAM or OAM transferring from the light to the electron. And the direction of this circulation can also be tuned by the structured light parameters. For this study, the light parameters are beam waist (0.03 a.u.), the frequency (variable), pulse duration(0.03 a.u.), topological charge (+1). The aim of this study is to investigate the magnetic field and current density induced by the twisted light and circularly polarized light in ring shape Mg-Porphyrin molecular cluster. We investigated Mg-porphyrin due to its aromatic structure and due to the fact that it is well known molecule. Through the calculations, electronic structure of the Mg-Porphyrin is obtained from Gaussian 09 program. We used Time Dependent Perturbation Theory to obtain the interaction term between Mg-Porphyrin and structured beams. The results show that SAM and OAM carrying light beam induces magnetic field and current in Mg-porphyrin and it is possible to control the magnitude and the direction of this magnetic field by changing the frequency of light and increasing OAM of the light. Keywords: photons. Optical properties o f clusters; Persistent currents; Atomic interactions with *Corresponding author; Tel.: +(90) 4342220000-3030, E-mail:kkoksal@beu.edu.tr 11 ISSN 1305-8614 © 2016 www.e-lse.org All rights reserved. Fatih KO C et al / Elec Lett Sci Eng 12 (2016) 11-12. References: [1] K. Köksal, J. Berakdar, Phys. Rev. A. 86, 063812,(2012). [2] F. Koç and K. Köksal, Superlattices and Microstructures 85, 599 (2015). [3 ] D. G. Grier Nature 424, 810 (2003). 12 e-LSE Electronic Letters on Science & Engineering 12 (2) (2016) < - L S E Available online at www.e-lse.org Special Issue BSW2016 Fifth Bozok Science Workshop: Nano Carbon Materials and Their Applications Bozok Science Workshop 2016, Yozgat, April 28-29, 2016. INVESTIGATION OF STRUCTURAL AND OPTICAL PROPERTIES OF SEMICONDUCTOR POLYMER POLY (5-(2-ETHYLHEXYLOXY)-2-METHOXY-CYANOTEREPHTHALYLIDENE) Hatice KANBUR ÇAVUŞ*1, Hatice ARI 2 1Physics Department, Faculty o f Art and Science, Bozok University, Yozgat/TURKEY. 2 Chemistry Department, Faculty o f Art and Science, Bozok University, Yozgat/TURKEY. Abstract: Nowadays, polymer electronic devices can be used in a wide range of applications. Especially, conjugated polymers have been studied due to their unique electronic and optical properties. These polymer materials are used in many fields such as organic light emitting diodes (OLEDs), Schottky diodes, organic solar cells, organic field effect transistors (FETs), photodetectors, detection systems and Polyphenylenevinylene, batteries. CN-PPV In this study, polymers group) among poly conjugated polymers (Cyano- (5-(2-ethylhexyloxy)-2-methoxy- cyanoterephthalylidene) was investigated (Figure 1) because this polymer has important properties such as semiconductivity and photoconductivity. We have investigated structural and optical properties of this polymer by using IR, Raman and UV measurements. As a result, IR and Raman spectra peaks of polymer were found that correspond to groups in the structure. In addition, the direct and indirect band gaps of the polymer from UV measurement were obtained as 2.5 and 2.22 eV, respectively. Figure 1. Poly(5-(2-ethylhexyloxy)-2-methoxy-cyanoterephthalylidene) Keywords: Polymers; Optical properties; Band gap; Raman spectra; IR spectra. *Corresponding author; Tel.: +(90) 555 8412091, E-mail: hatice.kanbur@bozok.edu.tr 13 ISSN 1305-8614 © 2016 www.e-lse.org All rights reserved. e-LSE Electronic Letters on Science & Engineering 12 (2) (2016) < - L S E Available online at www.e-lse.org Special Issue BSW2016 Fifth Bozok Science Workshop: Nano Carbon Materials and Their Applications Bozok Science Workshop 2016, Yozgat, April 28-29, 2016. FREE ENERGY CALCULATION FOR GRAMICIDIN A (GA) CHANNEL WITH NO EQUILIBRIUM REQUIREMENT Murat ÇAVUŞ*’1, Murat ŞAHAN2, Turgut BAŞTUĞ 3 fa c u lty o f Education, Bozok University, Yozgat, Turkey 2Faculty o f Art and Science, Bozok University, Yozgat, Turkey 3Department o f Material Science and Nanotechnology Engineering, TOBB ETU, Ankara, Turkey Abstract: Today, the most important reason o f the work with molecular dynamics simulation method of biomolecular systems is to ensure understanding physical mechanism and dynamic properties that is not readily accessible to experimental methods. Gramicidin channels (Figure 1) are bacterial channels with radius of approximately 2 Â. The channel is a simple test system for controlling the accuracy of the method of free energy and force field because of the simple structure. In addition, theoretical calculations of free energy that called Crooks fluctuation theorem for non-equilibrium systems are available at literature. In this study, primarily, free energy calculation methods that do not require equilibrium state were developed for complex systems and compared with the free energy simulation work in equilibrium condition. Finally the validity of the method was tested for the GA channels. Figure 1: Gramicidin A Channel Keywords: Gramicidin A Channel; Crooks Fluctuation Theorem; Non-equilibrium Systems *Correspondingauthor; Tel.: +(90) 505 5851426,E-mail:murat.cavus@bozok.edu.tr 14 ISSN 1305-8614©2016www.e-lse.orgAllrightsreserved. e-LSE Electronic Letters on Science & Engineering 12 (2) (2016) < - L S E Available online at www.e-lse.org Special Issue BSW2016 Fifth Bozok Science Workshop: Nano Carbon Materials and Their Applications Bozok Science Workshop 2016, Yozgat, April 28-29, 2016. BIOSORPTION OF METHYL ORANGE DYE BY YELLOW MUSTARD SEEDS (Sinapis Alba L.) Serpil SAVCI 1 1Bozok University, Engineering Arthitecture Faculty, Biosystems Engineering Department 66200, Yozgat, Turkey Abstract: Dyes are the common contaminants in the aquatic environment even at trace levels. One of the most dangerous carcinogenic organic materials is acidic-anionic dyes. Methyl orange is an acid base indicator. Textile, printing, paper and food industries have been used Methyl orange. Biosorption can be used for the removal of dyes from wastewater. Biological materials such as aquatic plants, seeds, agriculture wastes, microorganisms, fungi and algae are used in this technique as a biosorbent. Both living and non-living materials can be used for dye removal. Biosorbent materials can easily available and low-cost. In this study, the biosorption of toxic methyl orange from aqueous effluents by yellow mustard seeds (Sinapis alba L.) was studied in a batch system. Equilibrium tests were done by contacting 1.0 g o f with 30 mL of Methyl orange solution at different initials concentrations at room temperature (25 0 C). The supernatant was centrifuged at 4000 rpm and 10 minutes in a centifugal (Hettich Zentrifugen) after batch tests. The absorbance of Methyl orange can be measured at 467 nm by U V -vis spectrophotometer (T 90). The initial dye concentrations for the contact time experiments was 50, 100, 200, 300 and 400 mg/L. The incubation times ranged from 5 to 160 min. The effects of initial dye concentration, kinetic and isotherm behaviors were investigated. Data obtained from batch studies applied to Langmuir and Freundlich isotherm models. Freundlich model (R2=0.9965) was well described for the system. Adsorption thermodynamic was also studied. The results showed that the yellow mustard seeds (Sinapis alba L.) can be successfully used for the removal of methyl orange. Keywords: Dyestuff; Biosorption; M ethyl Orange, Isotherm. *Corresponding author; Tel.: +(90) 3542421001, E-mail: serpilsavci@hotmail.com 15 ISSN 1305-8614 © 2016 www.e-lse.org All rights reserved. e-LSE Electronic Letters on Science & Engineering 12 (2) (2016) < - L S E Available online at www.e-lse.org Special Issue BSW2016 Fifth Bozok Science Workshop: Nano Carbon Materials and Their Applications Bozok Science Workshop 2016, Yozgat, April 28-29, 2016. HF AND DFT ANALYSIS OF STRUCTURE AND ENERGETICS OF Zn(H 2 O)n FOR n=1-10 Salih CINAKLI*1, Mustafa BÖYÜKATA 1 and Yılmaz DAĞDEMİR 2 1 Department o f Physics, Bozok University, 66200 Yozgat, Turkey. 2 Department o f Physics, Erciyes University, 38039 Kayseri, Turkey. Abstract: Structural and energetic properties o f water and metal doped water clusters have been interesting subjects [1,2]. In this study, size dependent changes of structural and energetic quantities of zinc-doped water clusters, Zn(H 2 O)n n=1-10, have been investigated by using Hartree-Fock (HF) and Density Functional Theory (DFT/B3LYP and DFT/PBE) at 6-311++G(d,p) basis set [3]. The total and binding energies of the considered clusters have been calculated. Energies for the highest occupied molecular orbitals (HOMO) and the lowest unoccupied molecular orbitals (LUMO) have been computed and their energy gaps have been determined. Zn-doping affects the structural stability of the water clusters. Energetic and structural parameters have been analyzed as a function the number of the water molecules in the clusters and findings have been compared with each other for the selected theories. Keywords: Water Clusters, Zinc, HF, DFT. References: 1. R. Cini, et al., J. M olecular Structure (T heochem ), 392, 55-64 (1997). 2. K. Ponnuvel, et al., Sensors and Actuators B 227, 2 4 2 -2 4 7 , (2016). 3. M. J. Frisch, et. al., G aussian 03, R evision D .01 (W allingford, CT: Gaussian Inc.) (2004). *Corresponding author; Tel.: +(90) 354 2421021-2594, E-mail: salih.cinakli@bozok.edu.tr 16 ISSN 1305-8614 © 2016 www.e-lse.org All rights reserved. e-LSE Electronic Letters on Science & Engineering 12 (2) (2016) < - L S E Available online at www.e-lse.org Special Issue BSW2016 Fifth Bozok Science Workshop: Nano Carbon Materials and Their Applications Bozok Science Workshop 2016, Yozgat, April 28-29, 2016. THE EFFECT OF MAGNETIZATION ON X- RAY FLUORESCENCE CROSS SECTIONS Paşa YALÇIN *J , Mehmet TERZİ2, Ali GÜROL 3 1Department o f Elementary Education, Faculty o f Education, 24030 Erzincan University, Erzincan, Turkey. 2 Institute o f Natural Sciences, Erzincan University, 24030 Erzincan, Turkey. 3 Department o f Physics, Faculty o f Sciences, Atatürk University, 25240 Erzurum, Turkey. Abstract: In this study, Fe and Co tablet samples, which show ferromagnetic properties at room temperature, were magnetised for 300 seconds in a 1T (10 kG) of size magnetic field, which had 12.94 mm distance between its poles. The magnetic field applied on the ferromagnetic samples were measured as F. W. Bell Gauss/Teslameter (Model 5080) and 1 tesla (10 kG) when the distance between its poles were 12.94 mm. Then, the change emerged in the g K a and g Kp cross sections of Fe and Co were respectively measured as 20°, 40°, 60°, 80°, 100°, 120° and 140° release angles in order. The samples were alerted with KX-rays o f silver alerted from Cd-109 radioisotope source of 40 mCi. During the study, an HPGe detector, which has the beryllium window with 25^m diameter and with (FWHM) 210 eV full width at half maximum in 5.9 keV was used. The crystal thickness of this detector was 10 mm and its active field was 200 mm2, the voltage to be used on the detector was applied till -1500 V at maximum and the shaping time were set as 10^s. The liquid, which is located in a crystal counter and FET were hold in a 30 liters of a liquid nitrogen container (dewar) was kept under nitrogen boiling temperature. The results showed that specifically the magnetization of Fe increased its KX-ray fluorescence cross sections and the fluorescence cross sections of KX-ray fluorescence cross sections for Fe without magnetization were anisotropic although it was not encountered with any anisotropy of magnetized Fe X-rays. Consequently, this was an expected situation as the magnetised Fe and the anisotropy of *Corresponding author; Tel.: +(90) 4462240089/42239, E-mail: pasayalcin@hotmail.com 17 ISSN 1305-8614 © 2016 www.e-lse.org All rights reserved. Paşa YALÇIN et a l/ Elec Lett Sci Eng 12 (2016) 1 7 -1 8. Co in the g K a and g Kp values were orientations of ions generated after alerted with photon, which was the anisotropy source of X-rays. However, to make the results more useful, it is necessary to make more studies that are experimental and support these results with studies determining the orientations of atoms in magnetized samples. Keywords: Angular Distribution; Magnetization; Cross Section; XRF; X-Rays. 18 e-LSE Electronic Letters on Science & Engineering 12 (2 ) (2 0 16 ) Available online at www.e-lse.org LSI e-LSE e-LSE Special Issue BSW2016 Fifth Bozok Science Workshop: Nano Carbon Materials and Their Applications Bozok Science Workshop 2016, Yozgat, April 28-29, 2016. ELECTRICAL AND OPTICAL EXPLORATIONS OF A NEW ATMOSPHERIC PLASMA DEVICE Erol KURT1*, Tolga ONCU2, H. Hilal KURT 3 1 Department o f Electrical & Electronics Engineering, Technology Faculty, Gazi University, TR- 06500, Ankara, Turkey 2 Turkish Atom Authority, Saraykoy Nuclear Research and Training Center, TR- 06500, Ankara, Turkey 3Department o f Physics, Faculty o f Science, Gazi University, TR- 06500, Ankara, Turkey Abstract:An Atmospheric Pressure Plasma Jet (APPJ) system which works under the atmospheric pressure has been designed and constructed. The system is operated at 13.6 MHz and produces cold plasma with 1 - 4 eV. The preliminary explorations have proven that the system can operate under a varied flow rate of He media. According to the preliminary measurements, a plasma current around 0.38 - 0.76 A has been measured. By using an IR camera, the plasma temperature is found as T = 28°C. According to the optical measurements, the reactive species such as OH, O, N, N 2 have been detected experimentally via an optical emission spectrometer. The APPJ device is proposedfor surface disinfection, since the produced plasma is harmful for the bacterial. The experimental setup is given in Fig. 1(a) and the resulting plasma amplitude measured by a Rogowski coil is given in Fig. 1(b). There exists a overall increasing trend in amplitude by gas speed. (a) (b) *Corresponding author; Tel.: +(90) 3122028550 ,E-mail:ekurt@gazi.edu.tr 19 ISSN 1305-8614©2016www.e-lse.orgAU rights reserved. Erol K U RT et al / Elec Lett Sci E ng 12 (2016) 19-20. 35000.00 H e —► 30000.00 100 w 100 slm 25000.00 r4 He = 20000,00 ni > c d) He 15000,00 He ç 10000.00 5 000,00 n 2 N °\k \l O ,7 N 1 b+Ai* o He L Lk___ ............. - 0,00 200,00 300,00 400,00 500,00 6 0 0 ,0 0 700,00 8 0 0 ,0 0 900,00 W a v e le n g th (nm) (c) Figure 1(a) The designed APPJ system and the gas and RF source connections.(b) The variation o f plasma amplitude with respect to gas speed.(c) Optical spectroscopy o f the plasma The optical observations proves that the plasma produces many ionized ions as in Fig. 1(c). Keywords: Electrical and optical explorations; Atmospheric plasma device. 20 e-LSE Electronic Letters on Science & Engineering 12 (2) (2016) < - L S E Available online at www.e-lse.org Special Issue BSW2016 Fifth Bozok Science Workshop: Nano Carbon Materials and Their Applications Bozok Science Workshop 2016, Yozgat, April 28-29, 2016. ISING SYSTEMS FROM MAGNETIC PHASE TRANSITIONS TO MAGNETIC NANOSTRUCTURES Mustafa KESKİN* Department o f Physics, Faculty o f Sciences, Erciyes University, 38039 Kayseri, Turkey. Abstract: Ising systems are the one most actively studied problems in statistical physics and condensed matter physics, and they have been used to explain many important cooperative physical systems. In this talk, first I will briefly introduce Ising systems and then emphasis their importance in statistical physics and condensed matter physics with two subjects. The first one, I will elucidate how to obtain metastable and unstable phases or states that are very important in many experimental and theoretical works. The second one, I will demonstrate that Ising models play important role in very interesting subject of the dynamic phase transition and dynamic phase diagrams. Next, I will provide an overview of recent and important works on properties of magnetic nanostructures studied by Ising systems. In particular, I will present the hysteresis, coercivity and compensation behavior of Ising nanostructures and compared with some experimental works. Finally, I will briefly review and discuss the dynamic magnetic properties of the Ising nanostructures. Keywords: Ising Models; Phase Transitions; Dynamic Phase Diagram; Core-shell Spin Structure; Hysteresis; Coercivity; Compensation. *Corresponding author; Tel.: +(90) 352 2076666/33105, E-mail: keskin@erciyes.edu.tr 21 ISSN 1305-8614 © 2016 www.e-lse.org All rights reserved. e-LSE Electronic Letters on Science & Engineering 12 (2) (2016) < - L S E Available online at www.e-lse.org Special Issue BSW2016 Fifth Bozok Science Workshop: Nano Carbon Materials and Their Applications Bozok Science Workshop 2016, Yozgat, April 28-29, 2016. MAGNETIC PROPERTIES OF MIXED SPIN (1, 2) HEXAGONAL ISING NANOWIRE SYSTEM Mehmet ERTAŞ *,1, Mustafa KESKİN 1 1 Department o f Physics, Faculty o f Sciences, Erciyes University, 38039 Kayseri, Turkey. Abstract: Magnetic nanowire systems have attracted considerable attention not only because of their academic interest, but also due to the technological applications; in particular, in the areas of magnetic recording media, spin electronics, optics, sensors and thermo electronics devices. On the other hand, in the last two decades, mixed spin Ising systems have been intensively studied. The reasons are as follows: (i) the systems have less translational symmetry than their single spin counterparts. (ii) The study of these systems can be relevant for understanding the bimetallic molecular system-based magnetic materials. (iii) Mixed spin Ising systems provide good models to investigate the ferromagnetic materials. In this work, by utilizing the framework of the effective field theory with correlation, magnetic properties of mixed spin (1, 2) hexagonal Ising nanowire system is studied in detail. The effects of Hamiltonian parameters on hysteresis and compensation behaviors are also discussed extensively. Finally, the results are compared with some experimental and theoretical works and found in a qualitatively good agreement. Keywords: M ixed spin (1, 2) hexagonal Ising nanowire; the effective fie ld theory; hysteresis and compensation. *Corresponding author; Tel.: +(90) 352 2076666/33134, E-mail: mehmetertas@erciyes.edu.tr 22 ISSN 1305-8614 © 2016 www.e-lse.org All rights reserved. e-LSE Electronic Letters on Science & Engineering 12 (2) (2016) < - L S E Available online at www.e-lse.org Special Issue BSW2016 Fifth Bozok Science Workshop: Nano Carbon Materials and Their Applications Bozok Science Workshop 2016, Yozgat, April 28-29, 2016. QUANTUM CHEMICAL STUDY FOR AMINE DERIVATIVES Fatma KANDEMİRLİ* Biomedical Engineering Department, Faculty o f Engineering and Architecture, Kastamonu University, 37200, Kastamonu, Turkey. Abstract: When a corrosion inhibitor is added to a liquid or gas, the corrosion rate of a metalor an alloy decreases. The efficiency of an organic inhibitor depends of the chemical structure so, electronic properties of the inhibitor. The organic acid inhibitor generally contains oxygen, nitrogen and/or sulfur and so they are adsorbed on the metallic surface blocking the active corrosion sites. In this study, the correlation between inhibition efficiency and descriptor variables such as the highest occupied molecular orbital energy (E h o m o ), lowest unoccupied molecular orbital energy (E l u m o ), the energy gap between E h o m o and E l u m o , global hardness (^),softness (a), chemical potential (^,), electronegativity (x ), Global Electrophilicity (ro), dipole moments (DM), molecular volume (MV), sum of the total negative charge (TNC), and sum of electronic and zero-point energies (SEZPE) obtained from the quantum chemical calculation using B3LYP/6-311++G(2d,2p), and CBSAPNO methods were evaluated and the result showed that the theoretical data obtained are in good agreement with the experimental inhibition. Keywords: Corrosiom; Inhibitors; DFT; Bant Gap. *Corresponding author; Tel.: +(90) 366 2802915 , E-mail: fkandemirli@yahoo.com 23 ISSN 1305-8614 © 2016 www.e-lse.org All rights reserved. e-LSE Electronic Letters on Science & Engineering 12 (2) (2016) < - L S E Available online at www.e-lse.org Special Issue BSW2016 Fifth Bozok Science Workshop: Nano Carbon Materials and Their Applications Bozok Science Workshop 2016, Yozgat, April 28-29, 2016. SYNTHESIS AND THEORETICAL STUDY OF 4-ACETYL-5-(2-NAPHTYL)-2,3-DIHYDRO-2,3-FURANDIONE WITH SOME NITROGENOUS NUCLEOPHILES M urat SARACOGLU * \ Fatma KANDEMİRLİ 2, Ayhan ÖZALP 3, Zülbiye KÖKBUDAK 3 1 Faculty o f Education, Erdyes University, 38039, Kayseri, Turkey. 2 Faculty o f Arts and Sciences, Kastamonu University, Kastamonu, Turkey, 3 Faculty o f Sciences, Erciyes University, 38039, Kayseri, Turkey Abstract: The 2,4-dioxopentanoic acid derivatives (3d-f) were obtained from the reaction of 4acetyl-5-(1-naphthyl)furan-2,3-dione (1) with various nitrogenous nucleophiles (2d-f). The structures of these newly synthesized compounds (3d-f) were determined from the FT-IR, 1H and 13C NMR spectroscopic data and elemental analyses. Theoretical Study of derivatives of (3Z)-3-{2-naphthyl[2(4-nitrophenyl)hydrazino]methylene}-2,4-dioxopentanoic acid (3d-f) were carried out by using DFT/B3LYP method with basis set of the 6-311G(d,p) in order to find molecular properties by Gaussian 03 program [1](see Schemes 1and 2). According to E h o m o and softness values; electronic give trends for investigated molecules can be written as: 3 f>3d>3e.The E h o m o and E h o m o energy gap of a measure of stability. Additionally, according to E h o m o and E h o m o energy gap; stability give trends for investigated molecules can be written as: 3e>3d>3f. Keyw ords: Furan-2,3-dione; Nitrogenous Nucleophiles; 2,4-dioxopentanoic Acid; Quantum Chemical Calculations. H3 C ------- ' + o h 2n -r (2 d -f) O NH HO (3 d -f) Scheme 1. Short representation o f the synthesized m olecules (3d-f). *Corresponding author; Tel.: +(90) 5323311544 ,E-mail:muratsaracoglu@gmail.com 24 ISSN \305-86\4© 20\6www.e-lse.orgAW rights reserved. M. Saracoglu et al / Elec Lett Sci Eng 12 (2016) 24-25. O Scheme 2. Synthesis o f m olecules (3d-f). Reference [1] M.J. Frisch, et. al., G aussian 03 W , Gaussian Inc., W allingford, CT, 2004. 25 e-LSE Electronic Letters on Science & Engineering 12 (2) (2016) * - L S E Available online at www.e-lse.org Special Issue BSW2016 Fifth Bozok Science Workshop: Nano Carbon Materials and Their Applications Bozok Science Workshop 2016, Yozgat, April 28-29, 2016. FARKLI BOYLARDAKİ ZİGZAG TEK DUVARLI KARBON NANOTÜPLERİN ELEKTRONİK YAPILARI Necati VARDAR * KTO Karatay Üniversitesi, Mühendislik Fakültesi Malzeme Bilimi ve Nanoteknoloji Mühendisliği Bölümü, Konya / Türkiye. Abstract: Tek Duvarlı Karbon Nanoteüplerin (TDKNT) günümüz teknolojisinde hedeflenen ve/veya kullanımda olan hidrojen depolama, strain sensör, biyo-sensör ve uzay araştırmaları vb. bir dizi kullanım alanı mevcuttur[1]. Ultra uzun TDKNT’lerin elektriksel özellikleri farklı deneysel gruplar tarafından çalışılmış olup karbon nanotüplerin hafif, yüksek mukavemetli kullanımlarına ek olarak, yeni uzun metalik karbon nanotüplerin nano-ölçekli elektromekanik sistemlerde kullanılması hedeflenmektedir[3-6]. Nanoyapılı malzemelerin özellikle karbon nanotüplerin simülasyonlarına başarıyla uygulanan Paralel N-Mertebe Sıkı-Bağ Moleküler Dinamik Simülasyon Yöntemi [7-8] çalışmamızda kullanılmış olup, çalışmada öncelikle seçilen farklı kiraliteye sahip zigzag TDKNT’lerin ortalama enerjilerinin katman sayısına göre değişimine bakılmış, ardından TDKNT’lerin boyunun enerji bant aralığına etkisi 300K sıcaklık değerinde incelenmiştir. Çalışma sonucunda, seçilen zigzag TDKNT’lerin enerji band aralığının kiraliteye nasıl bağlı olduklarına dair bir çıkarım yapılmıştır. Keywords: Moleküler Dinamik Simülasyonu, Karbon Nanotüp, Tek Duvarlı Karbon Nanotüp, Kiralite, Enerji Band Aralığı. References: [1] Su, C.C., et. al., Sens. and Act., A176: 124-129 (2012); Ferrreira, et. al., Sens. and Act., A 178: 10-16 (2012). [2] Hong, B.H., et. al., J. Am. Chem. Soc. 127: 15336-15337 (2005); Durkop, T., et. al., Nano Lett., 4: 35-39 (2004); Li, S., Yu, Z., et. al., Nano Lett., 4: 2003-2007 (2004); Zheng, L.X., et. al., Nat. Mat. 3: 673-676 (2004). [3] Özdogan, C., et. al., Comp. Phys. Commun., 148: 188-205 (2002); Dereli G., Özdoğan C., Phys. Rev. B, 67: 0354415 (1-7) (2003). *Corresponding author; Tel.: +(90) 555 3899559 , E-mail: necati.vardar@karatay.edu.tr 26 ISSN 1305-8614 © 2016 www.e-lse.org All rights reserved. e-LSE Electronic Letters on Science & Engineering 12 (2) (2016) < - L S E Available online at www.e-lse.org Special Issue BSW2016 Fifth Bozok Science Workshop: Nano Carbon Materials and Their Applications Bozok Science Workshop 2016, Yozgat, April 28-29, 2016. STRUCTURAL PROPERTIES OF SOME TRANSITION METAL CLUSTERS Meral ERYÜREK * B ülent Ecevit Uni., Faculty o f Arts and Sciences, Phys. Department 67100 Zonguldak, Turkey. Abstract: The structural properties of small Xn with 6 < N < 55 (X: Ag, Cd, Co, Cu, Ir, Ni, Pd, Pt, Rh, Ti, Zn and Zr) clusters were studied using Genetic Algorithm. Cohesion of the clusters was modeled by Gupta potential, which contains many-body atomic interactions. The global minimum energies, mean bond lengths and differences between first and second energy were calculated, and these quantities were plotted as a function of cluster size and were compared with each other. The results were evaluated with the bulk properties of metals that are melting temperatures, atomic radiuses. Geometrical magic number clusters were obtained and were investigated. Finally, our preliminary analysis showed that one can easily optimize the classical structures with high level of accuracy considering the well stablished classical Gupta potential. These results can be at least for small clusters used as initial guess to deal with more efficient and precise calculations based on quantum mechanics. Keywords: Transition M etal Cluster; Genetic Algorithm; Gupta Potential; M agic Number. *Corresponding author; Tel.: +(90) 505 3887830, E-mail: meryurek@yahoo.com, meral.eryurek@beun.edu.tr 27 ISSN 1305-8614 © 2016 www.e-lse.org All rights reserved. e-LSE Electronic Letters on Science & Engineering 12 (2) (2016) < - L S E Available online at www.e-lse.org Special Issue BSW2016 F ifth B o z o k S c ie n c e W o r k s h o p : N a n o C a r b o n M a te r ia ls a n d T h e ir A p p lic a tio n s Bozok Science Workshop 2016, Yozgat, April 28-29, 2016. O R G A N I C D Y E S F O R T iO 2 D Y E - S E N S I T I Z E D S O L A R C E L L S Mücella ÖZBAY KARAKUŞ1, Tolga ÖNEN2, Hidayet ÇETİN 3* 1 Bozok University, Engineering and Architecture Faculty, Computer Engineering Department, Yozgat 2 Bozok University, The Graduate School o f Natural and Applied Sciences, Department o f Physics, Yozgat 3* Bozok University, Art and Science Faculty, Department o f Physics, 66200, Yozgat. Abstract: In this work, we extracted organic dyes from 13 different plants (purple pansy, linden, linden-sage mixture, pink begonia, cehirlik tulip, red beet, anchusa azurea, beet root, mullein, pink peony, red rose, henna, yellow marigold) and 7 fruits (black mulberry, red pepper, eggplant peel, red carrot, malta plum, ink-malta plum, blueberry). These dyes were used as sensitizer for nano-TiO 2 coated FTO dye-solar cell. 20 solar cells were prepared and electrical characteristics were obtained. Solar cells were fabricated as following procedure; TiO 2 paste which was on FTO layer was sintered at 450 °C for 30 min. After the sintering procedure, TiO 2 coated FTO layers were dipped prepared organic-based dyes for 24 h. Platinum coated FTO’s were used as counter electrodes. The electrical characterizations of the fabricated solar cells were obtained under 1000 W /m 2 halogen lamp light. When short circuit current and fill factor values of the cells are compared, the black mulberry dye shows best results with the values of 2.263 A/m 2 current density and 0.498 fill factor. Keywords: Natural Dyes; TiO2 Nanostructure; Solar Cell. Acknowledgment: This study has been supported by Bozok University Scientific Research Projects Department for 2015-FEF/A175 coded project. *Corresponding author; Tel.: +(90) 354 242 10 21 /2 5 9 5 , E-mail: hidayet.cetin@bozok.edu.tr 28 ISSN 1305-8614 © 2016 www.e-lse.org All rights reserved. e-LSE Electronic Letters on Science & Engineering 12 (2 ) (2 0 1 6 ) e-L^ E Available online at www.e-lse.org Electronic Letters on Science & Engineering An International Open Access Journal Bozok University, Department o f Electrical and Electronics Engineering, 66100, Yozgat, Turkey ______________________ Volume 12, Number 2, 2016______________________ We would like to thank the Scientific Committee for taking part in the committee and sharing their valuable ideas to improve Bozok Science Workshop and the generous support of recommending invited lectures and selecting the abstracts for this volume, as well as the members of the Organizing Committee for their help. S c ie n tific C o m m itte e Ziya B. Güvenç Mahmut Doğru İhsan Boustani Semiha Bahçeli Fatma Kandemirli Serap Dalgıç Turgut Baştuğ Mustafa Keskin Ömer Şahin Kadir Esmer Hamdi Temel Eren Sait San Orhan Uzun Saffet Nezir Süleyman Yılmaz Mehmet N. Kumru Uğur Çevik Uğur Y ahşi Jadson C. Belchior Y ahya Güzel Süleyman Daşdağ Zsolt Szakacs İrfan Koca Seyhan Karaçavuş İsmail Boztosun Feyzullah Temurtaş Alexander Quandt Abdulmecit Türüt Emine Can Mustafa Böyükata Erol Kurt Tarek Ma'mon El-Gogary Hidayet Çetin Cem Özdoğan Savaş Berber M. Nureddin Türkan Erol Eroğlu Metin Aytekin Can D. Vurdu Ozan Ünsalan Mahmut Böyükata Radu Todoran M. Zafer Köylü Haydar Arslan M. Sait İzgi Abdullah Melekoğlu Taner Arslan Necati Vardar Hamdi Melih Saraoğlu O r g a n iz in g C o m m itte e Mustafa Böyükata Salih Cınaklı Murat Çavuş Orhan Er Hatice Arı Esra Yıldız Mikail Direkçi Mehmet Yakan P ublishing office: e-LSE.org, Bozok University, Department of Electrical and Electronics Engineering, 66100, Yozgat, Turkey [Phone: (+90) (354) 2421001; Fax: (+90)(354) 242 1005]. A d v e rtis in g in fo rm a tio n : If you are interested in advertising or other commercial opportunities please e-mail e-lse@e-lse.org and your enquiry will be passed to the correct person who will respond to you within 48 hours. P ublication info rm atio n: Electronic Letters on Science & Engineering (ISSN 1305-8614). For 2016, volume 12 (2 issues) is scheduled for publication.