Final book of the special issue

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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: [email protected], [email protected]
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: [email protected]
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
F o u n d in g E d ito r
Dr. Feyzullah TEMURTAS
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
Dr. Mustafa Yaz
Dr. Caner Kaya Özer
Bozok University, Department of Geological
Dr. Onursal Cetin
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
Dr. Fatih Dumludağ
Marmara University, Physics Department,
Istanbul, TURKEY
Dr. Seydi Vakkas Üstün
Adıyaman University, ElectricalElectronics Eng., Adıyaman, TURKEY
Dr. Kursat Ayan
Dr. Hasan Temurtaş
Dumlupinar University, Computer
Engineering, Kütahya, TURKEY
Dr. Ali Gülbağ
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. Tic. Ltd. 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)
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
Dr. Nursel Öksüz
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.
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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
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
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: [email protected]
3
ISSN 1305-8614 © 2016 www.e-lse.org All rights reserved.
e-LSE
Special Issue
BSW2016
Their Applications
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: [email protected]
4
e-iJStL
Electronic Letters on Science & Engineering 12 ( 2 ) (2 0 16 )
^-lse
Special Issue
BSW2016
Their Applications
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: [email protected]
5
e-LSE
Electronic Letters on Science & Engineering 12 (2 ) (2 0 16 )
<-LSE
Special Issue
BSW2016
Their Applications
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: [email protected]
6
e-LSE
Special Issue
BSW2016
Their Applications
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: [email protected]
7
e-LSE
Special Issue
BSW2016
Their Applications
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: [email protected]
8
e-LSE
<-LSE
Special Issue
BSW2016
Their Applications
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: [email protected]
9
e-LSE
Special Issue
BSW2016
Their Applications
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.
10
e-LSE
Special Issue
BSW2016
Their Applications
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:[email protected]
11
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
Special Issue
BSW2016
Their Applications
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: [email protected]
13
e-LSE
Special Issue
BSW2016
Their Applications
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:[email protected]
14
ISSN 1305-8614©2016www.e-lse.orgAllrightsreserved.
e-LSE
Special Issue
BSW2016
Their Applications
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: [email protected]
15
e-LSE
Special Issue
BSW2016
Their Applications
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: [email protected]
16
e-LSE
Special Issue
BSW2016
Their Applications
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: [email protected]
17
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
LSI
e-LSE
e-LSE
Special Issue
BSW2016
Their Applications
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:[email protected]
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
Special Issue
BSW2016
Their Applications
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.
21
e-LSE
Special Issue
BSW2016
Their Applications
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.
22
e-LSE
Special Issue
BSW2016
Their Applications
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: [email protected]
23
e-LSE
Special Issue
BSW2016
Their Applications
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:[email protected]
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
Special Issue
BSW2016
Their Applications
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: [email protected]
26
e-LSE
Special Issue
BSW2016
Their Applications
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: [email protected], [email protected]
27
e-LSE
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
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: [email protected]
28
e-LSE
Electronic Letters on Science & Engineering 12 (2 ) (2 0 1 6 ) e-L^ E
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].
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P ublication info rm atio n: Electronic Letters on Science & Engineering (ISSN 1305-8614). For 2016, volume 12 (2 issues) is scheduled for publication.

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