Prof. Dr. Yavuz Köysal

Yayın Ağı

Makaleler 66

1. Investigation of the effect of natural convection cooling caused by the chimney effect on the improved solar thermoelectric system

Bülbül H., Atalay T., Yakut Y., Özbektaş S., Köysal Y.

APPLIED THERMAL ENGINEERING , cilt.263, 2025 (SCI-Expanded, Scopus)

2. Evaluation of energy efficiency of thermoelectric energy generator system with heat pipes, solar tracker, Fresnel lens and nano-particle fluids

Köysal Y., Yakut Y., Özbektaş S., Bülbül H., Atalay T., Şahin F.

APPLIED THERMAL ENGINEERING , cilt.246, 2024 (SCI-Expanded, Scopus)

3. Experimental investigation and mathematical modeling of a novel solar thermoelectric generator incorporated with thermal condensing system

Yakut Y., Özbektaş S., Köysal Y., Atalay T., BÜLBÜL H.

APPLIED THERMAL ENGINEERING , cilt.236, 2024 (SCI-Expanded, Scopus)

4. Synthesis, crystal structure, spectroscopy and quantum chemical investigations of hexahydroquinoline molecule

Bülbül H., Cetin G., Köysal Y., ŞİMŞEK R., Yildirim S. O., Tanak H., et al.

MOLECULAR PHYSICS , cilt.122, sa.18, 2024 (SCI-Expanded, Scopus)

5. Crystal Structure, Computational Study and Hirshfeld Surface Analysis of 4-(4-Methoxyphenethyl)-5-(p-tolyl)-2,4-Dihydro-3H-1,2,4-Triazol-3-One, C18H19N3O2

Bülbül H., Koysal Y., YILDIRIM S., ÜNLÜER BİRİNCİ D., SOYLU M. S., Butcher R. J.

JOURNAL OF CHEMICAL CRYSTALLOGRAPHY , cilt.52, sa.4, ss.440-449, 2022 (SCI-Expanded, Scopus)

6. Experimental and theoretical analysis of thermoelectric energy generating system collecting concentrated solar energy

Mahmat A. M., Köysal Y., Yakut Y., Atalay T., Özbektaş S.

ENERGY SOURCES PART A-RECOVERY UTILIZATION AND ENVIRONMENTAL EFFECTS , cilt.44, sa.4, ss.9184-9203, 2022 (SCI-Expanded, Scopus)

7. Experimental and Thermal Analysis of Solar Thermoelectric System Performance Incorporated with Solar Tracker

Atalay T., Yakut Y., Köysal Y., Özbektaş S., Bülbül H., Topaloglu B.

INTERNATIONAL JOURNAL OF PRECISION ENGINEERING AND MANUFACTURING-GREEN TECHNOLOGY , cilt.9, sa.2, ss.587-602, 2022 (SCI-Expanded, Scopus)

8. Crystal structure and computational studies of (E)-1-(benzo[b]thiophen-3-yl)-N-(4-ethoxyphenyl)methanimine

Bülbül H., Köysal Y., Doğan O. E., DEGE N., Ağar E.

CRYSTALLOGRAPHY REPORTS , cilt.64, sa.3, ss.403-406, 2019 (SCI-Expanded, Scopus)

9. Performance Analysis on Solar Concentrating Thermoelectric Generator Coupled with Heat Sink

Köysal Y.

INTERNATIONAL JOURNAL OF PRECISION ENGINEERING AND MANUFACTURING , cilt.20, sa.2, ss.313-318, 2019 (SCI-Expanded) Sürdürülebilir Kalkınma

10. Experimental and Modeling Study on Solar System Using Linear Fresnel Lens and Thermoelectric Module

Köysal Y., ÖZDEMİR A. E., Atalay T.

JOURNAL OF SOLAR ENERGY ENGINEERING-TRANSACTIONS OF THE ASME , cilt.140, sa.6, 2018 (SCI-Expanded, Scopus)

11. Evaluation of Energy Efficiency of Thermoelectric Generator with Two-Phase Thermo-Syphon Heat Pipes and Nano-Particle Fluids

Atalay T., Köysal Y., ÖZDEMİR A. E., Özbaş E.

INTERNATIONAL JOURNAL OF PRECISION ENGINEERING AND MANUFACTURING-GREEN TECHNOLOGY , cilt.5, sa.1, ss.5-12, 2018 (SCI-Expanded, Scopus)

12. Crystal structure of 3-(4-methoxyphenyl)-1-(4-methylphenyl)prop-2-en-1-one, C17H16O2

Köysal Y., Bülbül H., Ozdemir F., İLHAN İ. Ö., DEGE N.

ZEITSCHRIFT FUR KRISTALLOGRAPHIE-NEW CRYSTAL STRUCTURES , cilt.232, sa.4, ss.593-594, 2017 (SCI-Expanded, Scopus)

13. Crystal structure of (E)-4-nitro-2-((2-phenoxy-phenylimino)methyl)phenol, C19H14N2O4

Köysal Y., Bülbül H., Kantar E. N., Coskun E., Şahin S., DEGE N.

ZEITSCHRIFT FUR KRISTALLOGRAPHIE-NEW CRYSTAL STRUCTURES , cilt.232, sa.1, ss.9-10, 2017 (SCI-Expanded, Scopus)

14. Crystal structure of (E)-3-((naphthalen-1-ylimino) methyl)-4-nitrophenol, C17H12N2O3

Bülbül H., Köysal Y., Macit M., Yaman R., DEGE N.

ZEITSCHRIFT FUR KRISTALLOGRAPHIE-NEW CRYSTAL STRUCTURES , cilt.232, sa.1, ss.135-136, 2017 (SCI-Expanded, Scopus)

15. Crystal structure and computational studies of (3Z)-4-benzoyl-3-[(2,4-dinitrophenyl)hydrazinylidene]-5-phenylfuran-2(3H)-one

Köysal Y., Bülbül H., İLHAN İ. Ö., Akin N., DEGE N.

ACTA CRYSTALLOGRAPHICA SECTION E-CRYSTALLOGRAPHIC COMMUNICATIONS , cilt.72, ss.1852-1861, 2016 (ESCI, Scopus)

16. Crystal structure and computational study of 2,4-dichloro-N-[(E)-(5-nitrothiophen-2-yl)methylidene]aniline

Köysal Y., Bülbül H., Gumus S., Ağar E., SOYLU M. S.

ACTA CRYSTALLOGRAPHICA SECTION E-CRYSTALLOGRAPHIC COMMUNICATIONS , cilt.72, ss.1187-1193, 2016 (ESCI, Scopus)

17. Amorf Hidrojenlenmiş Karbon İnce Filmlerin Yasak Enerji BantAralıklarının Optiksel İncelenmesi

Kızılçaoğlu H., GÖKŞEN K., KÖYSAL Y.

Düzce Üniversitesi Bilim ve Teknoloji Dergisi , cilt.4, sa.1, ss.317-326, 2016 (Hakemli Dergi)

18. The experimental design of solar heating thermoelectric generator with wind cooling chimney

ÖZDEMİR A. E., Köysal Y., Özbaş E., Atalay T.

ENERGY CONVERSION AND MANAGEMENT , cilt.98, ss.127-133, 2015 (SCI-Expanded, Scopus)

19. Crystal structure of 2-{[2-methoxy-5-(trifluoromethyl)phenyl]iminomethyl}-4-nitrophenol

Karadayı N., Şahin S., Köysal Y., Coskun E., Buyukgungor O.

ACTA CRYSTALLOGRAPHICA SECTION E-CRYSTALLOGRAPHIC COMMUNICATIONS , cilt.71, 2015 (ESCI)

20. Crystal Structure Spectroscopy SEM Analysis and Computational Studies of N 1 3 Dioxoisoindolin 2yl benzamide

BÜLBÜL H., KÖYSAL Y., DEGE N., GÜMÜŞ UZUN S., AĞAR E., SALHA H.

Journal of Crystallography , cilt.2015, ss.1-6, 2015 (Hakemli Dergi)

21. 2-{[3-Chloro-4-( 4-chlorophenoxy)phenyl]iminomethyl}-4-nitrophenol

Karadayı N., Köysal Y., Şahin S., Coskun E., Buyukgungor O.

ACTA CRYSTALLOGRAPHICA SECTION E-CRYSTALLOGRAPHIC COMMUNICATIONS , cilt.69, 2013 (ESCI)

22. 8-{(E)-[(4-Chlorophenyl)imino]methyl}1,1,7,7-tetramethyl-1,2,3,5,6,7-hexahydropyrido[3,2,1-ij] quinolin-9-ol

Kantar E. N., Köysal Y., Akdemir N., Alaman Ağar A., SOYLU M. S.

ACTA CRYSTALLOGRAPHICA SECTION E-CRYSTALLOGRAPHIC COMMUNICATIONS , cilt.69, 2013 (ESCI)

23. Synthesis, structural characterization and comparison of experimental and theoretical results by DFT level of molecular structure of 4-(4-methoxyphenethyl)-3,5-dimethyl-4H-1,2,4-triazole

Dugdu E., ÜNVER Y., ÜNLÜER BİRİNCİ D., TANAK H., SANCAK K., Köysal Y., et al.

SPECTROCHIMICA ACTA PART A-MOLECULAR AND BIOMOLECULAR SPECTROSCOPY , cilt.108, ss.329-337, 2013 (SCI-Expanded)

24. Ethyl 2-[2-(4-hydroxy-3-methoxybenzylidene)hydrazin-1-ylidene]-3,4-dimethyl-2,3-dihydro-1,3-thiazole-5-carboxylate

YILDIRIM S., Butcher R. J., Köysal Y., Kantar E. N., Belder A.

ACTA CRYSTALLOGRAPHICA SECTION E-CRYSTALLOGRAPHIC COMMUNICATIONS , cilt.68, 2012 (ESCI)

25. 1,1,2,2-Tetrakis[2,4-dichloro-6-(diethoxymethyl) phenoxymethyl]ethene

Köysal Y., Orzturk S., Butcher R. J., Dugdu E.

ACTA CRYSTALLOGRAPHICA SECTION E-CRYSTALLOGRAPHIC COMMUNICATIONS , cilt.68, 2012 (ESCI)

26. (E)-{[But-2-ene-1,4-diylbis(oxy)]bis(4,1phenylene)}bis(phenylmethanone)

YILDIRIM S., Butcher R. J., Köysal Y., Birinci E.

ACTA CRYSTALLOGRAPHICA SECTION E-STRUCTURE REPORTS ONLINE , cilt.68, 2012 (ESCI)

27. 4-Methoxy-2-{(E)-[(thiophen-2-yl)methylimino]methyl}phenol

Kantar E. N., Köysal Y., Macit M., Er E., SOYLU M. S.

ACTA CRYSTALLOGRAPHICA SECTION E-CRYSTALLOGRAPHIC COMMUNICATIONS , cilt.68, 2012 (ESCI)

28. Crystal structure, spectroscopic investigations and density functional studies of 4-(4-methoxyphenethyl)-5-benzyl-2H-1,2,4-triazol-3(4H)-one monohydrate

Köysal Y., TANAK H.

SPECTROCHIMICA ACTA PART A-MOLECULAR AND BIOMOLECULAR SPECTROSCOPY , cilt.93, ss.106-115, 2012 (SCI-Expanded)

29. 4-[2-(4-Hydroxyphenyl) ethyl]-3-propyl1H-1,2,4-triazol-5(4H)-one

YILDIRIM S., Butcher R. J., ÜNLÜER BİRİNCİ D., Köysal Y.

ACTA CRYSTALLOGRAPHICA SECTION E-CRYSTALLOGRAPHIC COMMUNICATIONS , cilt.68, 2012 (ESCI)

30. 5-Diethylamino-2[(E)-(2,4-dimethoxy-phenyl)iminomethyl]phenol

Kantar E. N., Köysal Y., Gumus S., Ağar E., SOYLU M. S.

ACTA CRYSTALLOGRAPHICA SECTION E-CRYSTALLOGRAPHIC COMMUNICATIONS , cilt.68, 2012 (ESCI)

31. 5-(Thiophen-2-ylmethyl)-1,3,4-thiadiazol-2-amine

Köysal Y., Deniz S., Butcher R. J., YILDIRIM S., Jasinskie J. P., Keeley A. C.

ACTA CRYSTALLOGRAPHICA SECTION E-CRYSTALLOGRAPHIC COMMUNICATIONS , cilt.68, 2012 (ESCI)

32. Electrical Parameters of Different Concentrations of Methyl Red in Fullerene Doped Liquid Crystal

OKUTAN M., KÖYSAL O., SAN S. E., KÖYSAL Y.

ISRN Nanomaterials , cilt.2012, ss.1-5, 2012 (Hakemli Dergi)

33. Experimental and Computational Approaches to the Molecular Structure of 3-(2-Mercaptopyridine)phthalonitrile

TANAK H., Köysal Y., Isik S., Yaman H., AHSEN V.

BULLETIN OF THE KOREAN CHEMICAL SOCIETY , cilt.32, sa.2, ss.673-680, 2011 (SCI-Expanded)

34. 4-(4-Methoxyphenethyl)-3-methyl-1H-1,2,4-triazol-5(4H)-one

Köysal Y., Tanak H., ÜNLÜER BİRİNCİ D., Isik S.

ACTA CRYSTALLOGRAPHICA SECTION E-CRYSTALLOGRAPHIC COMMUNICATIONS , cilt.66, 2010 (SCI-Expanded)

35. Ethyl 4-(3-ethyl-5-oxo-4,5-dihydro-1H-1,2,4-triazol-4-yl)benzoate

ÜNVER Y., Köysal Y., Tanak H., ÜNLÜER BİRİNCİ D., Isik S.

ACTA CRYSTALLOGRAPHICA SECTION E-CRYSTALLOGRAPHIC COMMUNICATIONS , cilt.66, 2010 (SCI-Expanded)

36. Experimental and DFT computational studies on 5-benzyl-4-(3,4-dimethoxyphenethyl)-2H-1,2,4-triazol-3(4H)-one

Tanak H., Köysal Y., Yavuz M., Buyukgungor O., SANCAK K.

JOURNAL OF MOLECULAR MODELING , cilt.16, sa.3, ss.447-457, 2010 (SCI-Expanded)

37. Novel phthalocyanines containing substituted salicyclic hydrazone-1,3-thiazole moieties: Microwave-assisted synthesis, spectroscopic characterization, X-ray structure and thermal characterization

DEĞİRMENCİOĞLU İ., Atalay E., Er M., Köysal Y., Isik S., SERBEST K.

DYES AND PIGMENTS , cilt.84, sa.1, ss.69-78, 2010 (SCI-Expanded)

38. An experimental and DFT computational study on 4-(3-(1H-imidazol-1-yl)propyl)-5-methyl-2H-1,2,4-triazol-3(4H)-one monohydrate

Tanak H., Köysal Y., ÜNVER Y., Yavuz M., Isik S., SANCAK K.

MOLECULAR PHYSICS , cilt.108, sa.2, ss.127-139, 2010 (SCI-Expanded)

39. 4-(2,3-Dihydroxybenzylideneamino)-3-methyl-1H-1,2,4-triazol-5(4H)-one

Tanak H., Köysal Y., Yavuz M., Isik S., Gul G.

ACTA CRYSTALLOGRAPHICA SECTION E-STRUCTURE REPORTS ONLINE , cilt.65, 2009 (SCI-Expanded)

40. Theoretical modeling and experimental studies on N-n-Decyl-2-oxo-5-nitro-1-benzylidene-methylamine

Tanak H., Ersahin F., Köysal Y., Ağar E., Isik S., Yavuz M.

JOURNAL OF MOLECULAR MODELING , cilt.15, sa.10, ss.1281-1290, 2009 (SCI-Expanded)

41. Experimental and DFT studies of ethyl N'-3-(1H-imidazol-1-yl) propylcarbamoyl benzohydrazonate monohydrate

Tanak H., Köysal Y., ÜNVER Y., Yavuz M., Isik S., SANCAK K.

STRUCTURAL CHEMISTRY , cilt.20, sa.3, ss.409-416, 2009 (SCI-Expanded)

42. (E)-4-bromo-2-[2-(hydroxymethyl)-phenyliminomethyl]phenol

Koysal Y., Isik S., Agar A.

ACTA CRYSTALLOGRAPHICA SECTION E-STRUCTURE REPORTS ONLINE , cilt.63, 2007 (SCI-Expanded)

43. Crystal Structure of 1 N Ethylthiocarbamoyl 3 5 di 2 thienyl 2 pyrazoline

KÖYSAL Y., IŞIK Ş., ÖZDEMİR Z., BİLGİN A. A.

ANALYTICAL SCIENCES, X-ray Structure Analysis Online , cilt.23, sa.10, ss.193-194, 2007 (Hakemli Dergi)

44. Crystal Structure of 1 Thiocarbamoyl 3 5 di 2 thienyl 2 pyrazoline

KÖYSAL Y., IŞIK Ş., ÖZDEMİR Z., BİLGİN A. A.

ANALYTICAL SCIENCES, X-ray Structure Analysis Online , cilt.23, sa.10, ss.177-178, 2007 (Hakemli Dergi)