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Journal Papers

Conference Papers

  • Ergin BAYRAK, Ali Bahadır OLCAY, Hojin AHN, Oğuzhan GÖKKAYA, Numerical investigation on thermofluid characteristics of vertical upward supercritical CO2 laminar flow through a circular microchannel, Proceedings of 22nd Ulusal Isı Bilimi ve Tekniği Kongresi (ULIBTK), Kocaeli, 11-14 September 2019.
  • Sivas, D., Olcay, A.B., Ahn, H., Investigation of a corrugated channel flow with an open-source PIV software, Experimental Fluid Mechanics Conference, Prague, Czech Republic, 2015.
  • Ahmet Cagri Develi and Hojin Ahn, 2015, Experimental Investigation on Friction and Acoustics in Corrugated Pipes, International Conference on Advances in Mechanical Engineering, Istanbul 2015 – ICAME2015-298.
  • Hojin Ahn, Burhan Gul, Yavuz Sahin and Onur Hartoka, Experimental Investigation on the Condensation Efficiency of Humid Air in a Cross-Flow Condenser, Proceedings of the ASME International Mechanical Engineering Congress and Exposition, IMECE2013-64331, 2013, San Diego, USA.
  • Hojin Ahn, Ibrahim Uslu, Experimental Investigation on Pressure Drop in Corrugated Pipes, Proceedings of the ASME International Mechanical Engineering Congress and Exposition, IMECE2013-66061, 2013, San Diego, USA.
  • Efe Unal, Esra Sorguven and Hojin Ahn, Computational Investigation of Vortex Structure in the Corrugated Channel, Proceedings of the ASME International Mechanical Engineering Congress and Exposition, IMECE2013-66062, 2013, San Diego, USA.
  • Efe Unal, Hojin Ahn and Esra Sorguven, Experimental Investigation of Vortex Structure in the Corrugated Channel, Proceedings of the ASME International Mechanical Engineering Congress and Exposition, IMECE2013-66063, 2013, San Diego, USA.
  • Burhan GÜL , Hojin AHN, Yavuz ŞAHİN, Onur HARTOKA, Kondanser Kanal Boyutlarının Havada Bulunan Su Buharının Yoğuşmasına Etkilerinin Deneysel Araştırılması, Proceedings of 19th Ulusal Isı Bilimi ve Tekniği Kongresi (ULIBTK), Samsun, Turkey, ULIBTK13-037, 848-853.
  • H. Ahn, Numerical Analysis of Convective Heat Transfer to Granular Flow, Proceedings of 18th Ulusal Isı Bilimi ve Tekniği Kongresi (ULIBTK), Zonguldak, Turkey, September 2011, ULIBTK2011-143. 
  • Selim Bozkurt, Koray K. Safak, Esra Sorguven, Suha Kucukaksu, Namik Ciblak, A. Fethi Okyar, Mehmet A. Akgun, Hojin Ahn, Nilufer Egrican and Ismail Lazoglu, Sol Karıncık Destek Cihazları İçin Kontrol Yöntemleri,  Control Strategies for the Left Ventricular Assist Devices, 48, BIYOMUT 2009. 
  • Kocatepe, Y., Ahn, H., Aydın, C., Karacasu, A., Experimental investigation of a heat exchanger with a helical coil made of corrugated tubes, Proceedings of 17th Ulusal Isı Bilimi ve Tekniği Kongresi (ULIBTK), Sivas, 24-27 June 2009, ULIBTK09-ISI-082. 
  • H. Ahn, E. Yılmaz, M. Yılmaz, A. Büğütekin, Discharge of Granular Materials from Hoppers with Various Exit Geometries, Proceedings of the ASME International Mechanical Engineering Congress and Exposition, IMECE2007-41804, 2007, Seattle, USA. 
  • Sorguven, E., Ciblak, N., Okyar, A.F., Akgun, M.A., Egrican, A.N., Safak, K.K., Ahn, H., Lazoglu, I., Kucukaksu, S., Flow simulation and optimization of a left ventricular assist device, ASME International Mechanical Engineering Congress and Exposition, IMECE2007-41747, 11-15 November 2007, Seattle, USA . 
  • Ciblak, N., Okyar, A.F., Sorguven,E., Akgun, M.A., Kucukaksu, S., Ahn, H., Safak, K.K., Egrican, N., Ozsoy, B., Yenigul, O., Sehirlioglu, M., Lazoglu, I., Budak, E., Analysis and development of Heart Turcica Axial: Development of the first implantable axial left ventricular assist system in Turkey, 1. Ulusal Yapay Organlar ve Destek Sistemleri Kongresi, 15-17 June 2007, Istanbul, Turkey. 
  • Lazoglu, I., Demir, O., Yildiz, G., Kucukaksu, S., Okyar, A.F., Cıblak, N., Akgun, M., Sorguven, E., Ahn, H., Safak, K.,Egrican, N., From Concept to the Prototype of Heart Turcica Centrifugal: Development of the First Implantable Centrifugal Left Ventricular Assist System in Turkey, 1. Ulusal Yapay Organlar ve Destek Sistemleri Kongresi, 15-17 June 2007, Istanbul, Turkey.
  • Küçükaksu, S., Göksedef, D., Bülbül, S., Yıldız, C.E., Çıblak, N., Lazoğlu, I., Sorgüven Öner, E., Akgün, M., Okyar, A.F.,Şafak, K.K., Ahn, H., Şehirlioğlu, M., Uçak, C., Eğrican, N., The prototype of the first Turkish axial pump for the treatment of end-stage cardiac failure, International Society for Rotary Blood Pumps (ISRBP) 14th Congress, 31 August-2 September 2006, Leuven, Brussels. 
  • Ahn, H., An Implicit Method for Numerically Stiff Venting Problems in Honeycomb and Other Multicell Configurations, AIAA-94-2361, 25th AIAA Fluid Dynamics Conference, 1994. 
  • Ruth, E. K., Ahn, H., Baker, R. L. and Brosmer, M. A., Advanced Liquid Rocket Engine Transient Model, AIAA-90-2299,26th AIAA/ASME Joint Propulsion Conference, 1990. 
  • Ahn, H., Brennen, C. E. and Sabersky, R. H., Experiments on Chute Flows of Granular Materials, Proceedings of the US-Japan Seminar on Micromechanics of Granular Materials, 1987, Sendai-Zao, Japan. 
  • Matthys E.F., H. Ahn, and R.H. Sabersky. 1986. Experimental heat transfer and friction results for clay suspensions and their combination with polymers, International Symposium on Slurry Flows,1986, Vol. FED-38, pp. 203-209. New York: American Society of Mechanical Engineers. 
  • Mehmet A. Akgün, Cem Tutcu, Anıl Özdemirli, "Design of a Live-Muscle-Tissue-Actuated Mechatronic Device", poster, 7th World Congress of Biomechanics (WCB2014), 6-11 July 2014, Boston, USA
  • Cem Tutcu, Mehmet A. Akgün, Anıl Özdemirli, Yalçın Günal, "Characterization of Animal Muscles as Actuators for Bio-Mechatronic Systems", poster, XXIV Congress of the International Society of Biomechanics (ISB2013), 4-9 August 2013, Natal, Brazil
  • Akgün, M. A., Tutcu, C., Okumus, B. C. Cıblak, N., “Design and Construction of an Unmanned Air-Cushion Vehicle for Minesweeping”, CD of Proceedings, 6th Ankara International Aerospace Conference, 14–16 September 2011, METU, Ankara, Turkey.
  • Akgün, M. A. and Ünlü, U. M., “Numerical and Experimental Investigation of Composite Plates with Internal Ply-Drop”, CD of Proceedings, The 13th International Conference on Machine Design and Production (UMTIK 2008), 3-5 September 2008, Istanbul, Turkey.
  • Akgün, M. A. and Ünlü, U. M., “Numerical and Experimental Investigation of Composite Plates with Internal Ply-Drop”, CD of Proceedings, The 13th International Conference on Machine Design and Production (UMTIK 2008), 3-5 September 2008, Istanbul, Turkey.
  • Sökmen, Ö. and Akgün, M. A., “Structural Optimization of a Composite Wing Under Four Different Flight Conditions”, CD of Proceedings, Session 1a, International Conference on Modelling and Optimization of Structures, Processes and Systems (ICMOSPS ’07), 22-24 January 2007, Durban, South Africa.
  • Akgün, M. A., Kavukcuoglu, K. and Oktay, E., “An Uncoupled Procedure for Wing Flutter Analysis”, CD of Proceedings, Paper No: AIAC-2005-089, Ankara International Aerospace Conference, 22-25 August 2005, Ankara, Turkey.
  • Sümer, B., Akgün, M. A. and Tuncer, I., “A Computational Static Aeroelastic Analysis Procedure For Aircraft Wings”, CD of Proceedings, Paper No: AIAC-2005-085, Ankara International Aerospace Conference, 22-25 August 2005, Ankara, Turkey.
  • Acar, E., Kale, A. A. and Akgün, M. A., “Reliability-Based Design and Inspection Scheduling Optimization of an Aircraft Structure Containing Multiple Site Damage”, New Trends in Fatigue and Fracture IV (NT2F4), 10-12 May 2004, Aleppo, Syria, CD of Proceedings.
  • Acar, E. and Akgün, M. A., "Life Assessment of a Jet Engine Component", paper no: 399 on CD of proceedings, International Conference on Computational & Experimental Engineering & Sciences, ICCES, 2003, 24-29 July 2003, Corfu, Greece; CD of Proceedings.
  • Akgün, M. A., “A Nonlinear Structural Reanalysis Method Based on the Sherman-Morrison-Woodbury Formulas”, CD of Proceedings, Fourth World Congress of Structural and Multidisciplinary Optimization, 4-8 June 2001, Dalian, China, CD of Proceedings.
  • Akgün, M. A. and Haftka, R. T., "Damage Tolerant Topology Optimization Under Multiple Damage Configurations", Topology Optimization of Structures and Composite Continua, NATO ARW, 8-12 May 2000, Budapest, Hungary; proceedings published by Kluwer Academic Publishers as Vol. 7 of sub-series Mathematics, Physics and Chemistry in NATO Science Series, eds., G. I. N. Rozvany and N. Olhoff, 2000, 317-325.
  • Akgün, M. A. and Haftka, R. T., "Damage Tolerant Topology Optimization Under Multiple Loas Cases", AIAA paper no: 2000-1389 on CD of proceedings, 41st Structures, Structural Dynamics and Materials Conference, 3-6 April, 2000, Atlanta, GA, USA.
  • Rosca, R., Haftka, R.T., Akgün, M. A. and Nikolaidis, E., "Block Toppling Model For Testing Procedures For Design Against Uncertainty", AIAA paper no: 2000-1717 on CD of proceedings, 41st Structures, Structural Dynamics and Materials Conference, 3-6 April, 2000, Atlanta, GA, USA.
  • Mutlu O., Olcay, A. B., Bilgin, C. and Hakyemez, B. “Investigation of the effect of flow diverter's pore density on stagnation fluid flow zones inside a giant aneurysm using a lagrangian coherent structure technique,” 15th Congress of the World Federation of Interventional and Therapeutic Neuroradiology, October 21-24, 2019, Naples, Italy.
  • Mutlu O., Olcay, A. B., Bilgin, C. and Hakyemez, B. “Understanding the effect of the number of wire on stagnation flow zones inside a giant aneurysm using a computational fluid dynamics technique,” 17th Balkan Congress of Radiology, October 17-19, 2019, Heraklion, Greece.
  • Tercanlı, M. F., Mutlu O., Olcay, A. B., Bilgin, C. and Hakyemez, B. “Numerical study of a simplified cerebral aneurysm using a two different flow diverter stent modeling,” Tıp Teknolojileri Kongresi-TIPTEKNO’19, 3-5 Ekim 2019, Kuşadası, Turkey.
  • Güçlü, G. Günaydın, M. T., Ünsal, C., Olcay, A. B., Bilgin, C. and Hakyemez, B. “Investigation of Blood Flow Behavior in an Aneurysm Sac Using Computational Fluid Dynamics,” Tıp Teknolojileri Kongresi-TIPTEKNO’19, 3-5 Ekim 2019, Kuşadası, Turkey.
  • Tercanlı, M. F., Olcay, A. B., Bilgin, C. and Hakyemez, B. “Investigation of a simplified cerebral aneurysm model with non-Newtonian fluid models for three different aneurysm neck sizes using computational fluid dynamics,” 22nd Congress on Thermal Science and Technology (ULIBTK 2019), 11-14 September 2019, Kocaeli University, Kocaeli, Turkey.
  • Ergin, O., Güler, Ü., Olcay, A. B., Bilgin, C. and Hakyemez, B. “Investigation of a simplified cerebral aneurysm model with three most common flow diverter stent models using computational fluid dynamics,” 22nd Congress on Thermal Science and Technology (ULIBTK 2019), 11-14 September 2019, Kocaeli University, Kocaeli, Turkey.
  • Bayrak, E., Olcay, A. B., Ahn, H. and Gökkaya, O. “Numerical investigation on thermal-fluid characteristics of horizontal and vertical upward and downward supercritical CO2 flow through circular microchannels,” 22nd Congress on Thermal Science and Technology (ULIBTK 2019), 11-14 September 2019, Kocaeli University, Kocaeli, Turkey.
  • Okbaz, A., Sökücü, S., Onbaşıoğlu, H. and Olcay, A. B. “Experimental investigation of evaporators with smooth and inner grooved tubes using CO2 as a refrigerant,” International conference, Ammonia and CO2 Refrigeration Technologies, April 11-13, 2019, Ohrid, Republic of Macedonia.
  • Bayrak, E., Tüzün, A. H. and Olcay, A. B. “Recent developments in passive heat transfer enhancement techniques in micro-cooling technology,” International academic research congress, INES 2017, 1376 – 1383.
  • Çatak, J., Yılmaz, B., Olcay, A.B., Özilgen, M. “İnsan sağ ve sol ventrikül kaslarında iş, ekserji ve entropinin termodinamik analizi,” Türk Fizyoloji Bilimler Derneği, 43. Ulıusal Fizyoloji Kongresi, Pamukkale Üniversitesi Kongre Merkezi, 7 - 10 Eylül 2017, Pamukkale, Türkiye.
  • Sokucu, M.,Unal, M.C.,Olcay, A.B., Onbasıoglu, H. “Numerical investigation on two-phase fluid flow characteristics of evaporator distributor with R404a and R744 refrigerants,” INTERNATIONAL CONFERENCE, Ammonia and CO2 Refrigeration Technologies, May 11-13, 2017, Ohrid, Republic of Macedonia. 
  • Okbaz, A., Pinarbasi, A., Onbaşıoğlu, H. and Olcay, A. B. “Panjur kanatlı ısı değiştiricilerinin performansının deneysel ve hesaplamalı akışkanlar dinamiği yaklaşımı ile incelenmesi,” 13. ULUSAL TESİSAT MÜHENDİSLİĞİ KONGRESİ – TESKON - 19-22 Nisan 2017, İzmir, Türkiye.
  • Okbaz, A., Pinarbasi, A., and Olcay, A. B. “3D computational analysis of thermal&hydraulic performance of louvered fin heat exchanger with variable louver angle and louver pitch,” Proceedings of the ASME 2016 International Mechanical Engineering Congress and ExpositionICONE14, IMECE 2016, November 11-17, 2016, Phoenix, Arizona, USA.
  • Okbaz, A., Olcay, A. B., Cellek, M. S. and Pinarbasi, A., “Computational investigation of heat transfer and pressure drop in a typical louver fin-and-tube heat exchanger for various louver angles and fin pitches,” Experimental Fluid Mechanics Conference, 15th - 18th November 2016, Marianske Lazne, Czech Republic.
  • Ural, O. F., Süslü, B., Olcay, A. B. and Hakyemez, B. “Beyin anevrizmalarının hemodinamik yapılarının kanın Newton tipi ve Newton tipi olmama durumlarının hesaplamalı akışkanlar dinamiği ile incelenmesi,” XX. Biyomedikal Mühendisliği Ulusal Toplantısı, 3-5 Kasım, İzmir, Türkiye.
  • Bilen, K., Gök, S. and Olcay, A. B. “Investigation of the effect of aluminum porous fins on the heat transfer,” 9th International Conference on Sustainable Energy & Environmental Protection 22-25 September 2016, Kayseri-Turkey.
  • Yayla, S., Yaseen, S., Olcay, A. B., “CFD simulation for designing two different shapes of the venturi for showing cavitation in two phase flow,” 2nd International Conference on Advances in Mechanical Engineering, ICAME 2016, 10-13 May, 2016, Istanbul, Turkey. 
  • Yayla, S., Ibrahim, S.S., Olcay, A. B., “The Separation of Water and Oil in Water Treatment Plant in Petroleum Project Using Coalescing Plate Seperator and CFD Simulation,” International Congress on Engineering and Information, 10-12 May, 2016, Osaka, Japan.
  • Erikli, S and Olcay, A. B., “Hidrosiklon Ayırıcılarda Vorteks Yakalayıcı Kanalı Konumunun Ayrıştırma Performansı ve Enerji Verimliliğine Etkilerinin İncelenmesi,” 9. Pompa Vana Kompresör Kongresi, 5-7 Mayıs, 2016, İstanbul, Türkiye.
  • Sivas, D., Olcay, A. B., Ahn, H., “Investigation of a corrugated channel flow with an open-source PIV software,” EPJ Web of Conferences, 114, 02107, 2016.
  • Süslü, B., Olcay, A. B. and Hakyemez, B., “Examination of Brain Aneurysm based on Computational Fluid Dynamics (CFD) Simulations,” Biomedical Engineering Meeting (BIYOMUT), 19th National, p. 1 - 4, (DOI 10.1109/BIYOMUT.2015.7369450), 2015.
  • Erikli, S and Olcay, A. B., “Inlet Diameter and Flow Volume Effects on Separation and Energy Efficiency of Hydrocyclones” IOP Conf. Ser.: Mater. Sci. Eng. 90 012074, London, England, 2015.
  • Olcay, A. B., Tabatabaei, M. M., Gokcen, M. G. and Heperkan, H., “Drag force and jet propulsion investigation of a swimming squid,” EPJ Web of Conferences, 92, 02092, 2015.
  • Okbaz, A., Olcay, A. B. and Pinarbasi, A., “Numerical Investigation of Fin Rows Number Effects on Thermal and Hydraulic Characteristics of Louvered Fin Heat Exchangers for Experimental Designs,” Experimental Fluid Mechanics Conference, Cesky Krumlov, Czech Republic, 2014.
  • Topkara, A., Ökeer, E., Hakyemez, B., Işık, E. Ö. and Olcay, A. B., “Time-of-Flight Manyetik Rezonans Anjiyografi Görüntüleri Üzerinde Hesaplamalı Akışkanlar Dinamiği Simülasyonları,” Biomedical Engineering Meeting (BIYOMUT), 18th National, Boğaziçi Üniversitesi Biyomedikal Mühendisliği Enstitüsü, İstanbul, Türkiye. 
  • Tabatabaei, M. M., Olcay, A. B., Gokcen, M. G., Okbaz, A. and Heperkan, H., “Investigation of hydrodynamic drag in a swimming squid,” Suleyman Demirel University, Journal of Engineering Sciences and Design, 2(3),SI:BioMechanics, 287-291, 2014.
  • Olcay, A. B., Tabatabaei, M. M., Gokcen, M. G., Okbaz, A. and Heperkan, H., “Understanding flow characteristics of swimming squid using 2D axisymmetric numerical model,” Suleyman Demirel University, Journal of Engineering Sciences and Design, 2 (3), SI:BioMechanics, 293-297, 2014.
  • Gokcen, M. G. and Olcay, A. B., “Bir Kalamarın 3-Boyutlu Sonlu Elemanlar Modelinin Bilgisayarlı Tomografi Yardımıyla Oluşturulması,” Suleyman Demirel University, Journal of Engineering Sciences and Design, 2(3), SI:BioMechanics, 181-184, 2014.
  • Okbaz, A., Olcay, A. B. and Pinarbasi, A., “Effect of Louver Angles on Thermal & Hydraulic Performance of Louvered Fin Heat Exchangers,” International Conference for Academic Disciplines, 30 June – 3 July 2014, Venice, Italy.
  • Gökçen, M. G., Olcay, A. B. and Adıgüzel, Ö., “Numerical Investigation of the Irrigant Flow Inside the Real Dental Root Canal,” BİYOMUT 2012, 17. Biyomedical Toplantısı, Ekim 2012, Boğaziçi Üniversitesi Biyomedikal Mühendisliği Enstitüsü, İstanbul, Türkiye.
  • Çakıcı, F., Yalçın, H. Ç. and Olcay, A. B., “2D numerical investigation of leaflet lenght and leaflet’s Young’s modulus on regurgitation,” BİYOMUT 2012, 17. Biyomedical Toplantısı, Ekim 2012, Boğaziçi Üniversitesi Biyomedikal Mühendisliği Enstitüsü, İstanbul, Türkiye.
  • Olcay, A. B., Gökçen, M. G. and Adıgüzel, Ö., “Numerical Investigation of the Effect of Needle Tilting Angle on Irrigant Flow Inside the Tooth Root Canal,” Bulletin of TIPTEKNO11 and BİYOMUT 2011, 16. Biyomedical Toplantısı, Ekim 2011, Antalya, Türkiye.
  • Masoom, A., Olcay, A. B., and Masoom, F., “Bridging the Gap Between High School and Engineering Freshmen,” Proceedings of the 2009 ASEE North Midwest Sectional Conference.
  • Olcay, A. B., Masoom, A. and Masoom, F., “Effect of Math Competency on Success in Engineering Science Courses: Work in Progress,” Proceedings of the 2008 ASEE North Midwest Sectional Conference.
  • Olcay, A. B., Saniei, N. and Yan, X., “Particle image velocimetry and heat transfer measurements of a disk at high rotational speeds,” ASME International Mechanical Engineering Congress & Exposition, November, 2002, New Orleans, LA.
  • Çıgay C.P., Şafak K.K. and Karadağ V. "İki Ayaklı Düzlemsel Robot İçin Kuvvete Duyarlı Direnç Türü Sensörler İle Denge Kontrolü" Otomatik Kontrol Ulusal Toplantısı (TOK’15), pp. 1120-1124.
  • Doğan U., Ağaoğlu A., Şafak K.K., Biomechanical Analysis of Sit-to-stand Motion Towards Design of a Mobility Assist Device for Physically Impaired People, VI. Ulusal Biyomekanik Kongresi, 27-29 Eylül 2012, Sakarya.
  • Karadağ C.V., Şafak K.K., İki Ayaklı Robot Eklem Eyleyicisinin Modellenmesi, Tanılanması, Simülasyonu ve Deneysel Başarımı, Otomatik Kontrol Ulusal Toplantısı (TOK 2011), İzmir, 568-573, (2011).
  • Karadağ C.V., Şafak K.K., İki Ayaklı Düzlemsel Bir Robot İçin Sensör Füzyon Uygulaması, Otomatik Kontrol Ulusal Toplantısı (TOK 2011), İzmir, 574-578, (2011).
  • Şafak, K.K., Baturalp, T.B.,  “Design And Analysis of a Foot Contact Sensor for Posture Control of a Biped Robot”, ASME 10th Biennial Conference of Engineering Systems Design and Analysis (ESDA 2010). July 12-14, 2010, Istanbul, Turkey.
  • Okyar F., Şafak K.K., Eğrican N., “Mechanical Design and Prototyping Considerations for an Intramedullary Nail for Extending Bone Sections”, ASME 10th Biennial Conference of Engineering Systems Design and Analysis (ESDA 2010). July 12-14, 2010, Istanbul, Turkey.
  • Ağaoğlu, A., Çıblak, N., Şafak, K.K., “Workspace Optimization Of A Six Degrees Of Freedom Parallel Manipulator For Micromachining”, ASME 10th Biennial Conference of Engineering Systems Design and Analysis (ESDA 2010). July 12-14, 2010, Istanbul, Turkey.
  • Onbaşıoğlu, E., Soydan, A., Atalay, B., Goularas, D., Safak, K.K., Okyar, F., “Visualisation of Burring Operation in Virtual Surgery Simulation”, ASME 10th Biennial Conference of Engineering Systems Design and Analysis (ESDA 2010). July 12-14, 2010, Istanbul, Turkey.
  • S. Bozkurt, K. K. Şafak., E. Sorgüven, S. Küçükaksu, N. Çıblak, A. F. Okyar, M. A. Akgün, H. Ahn, A. N. Eğrican, İ. Lazoğlu, "Sol Karıncık Destek Cihazları İçin Kontrol Stratejileri”, Biyomedikal Mühendisliği Ulusal Toplantısı, Mayıs 2009.
  • S. Bozkurt, K. K. Şafak., E. Sorgüven, S. Küçükaksu, N. Çıblak, A. F. Okyar, M. A. Akgün, H. Ahn, İ. Lazoğlu, A. N. Eğrican," Sol Ventrikül Destek Cihazları ile Dolaşım Sisteminin Modelleme ve Simülasyon Çalışmaları, Ulusal Yapay Organlar ve Destek Sistemleri Kongresi, Nisan 2009.
  • Koray K. Şafak, T. Batuhan Baturalp, “İki Ayaklı Biyomimetik Yürüyen Robot için Yürüyüs Sentezi Yöntemleri ve Tasarım Ölçütlerinin Belirlenmesi”, Otomatik Kontrol Ulusal Toplantısı (TOK’08), pp. 258-262, 13-15 Kasım 2008, İstanbul.
  •  Kaplanoglu, E, Şafak, K., Varol, H.S “Real-Time Parameter Estimation of a MIMO System”, International MultiConference of Engineers and Computer Scientists 2008 (IMECS 2008). March 19-21,2008 Hong Kong.·         Witting, J.H., Ayers, J. and Şafak, K. K., “Development of a Biomimetic Underwater Ambulatory Robot: Advantages of Matching Biomimetic Control Architecture with Biomimetic Actuators”, Proceedings of SPIE, 2000, 54-61.
  • Şafak, K. K. and Türkay, O.S., “Identification of a Universal Motor Dynamics using Artificial Neural Networks” (in Turkish) , National Conference of Automatic Control , Oct. 15-16, 1998, Istanbul, Turkey.
  • Şafak, K. K. and Erçil, A., “Surface Quality Control of Textile Products using Artificial Neural Networks” (in Turkish) , Signal Processing and Applications Conference , May 28-30, 1998, Ankara, Turkey.
  • C. V. Karadag and N. Topaloglu, "Doğrusal Olmayan Rezonatörler için Bir Parametre Kestirim Tekniği," UMTS 2019, 19. Ulusal Makine Teorisi Sempozyumu, September 4-6, 2019, İskenderun, Hatay.
  • S. Ertarla, C. V. Karadag and N. Topaloglu, "Axial and transverse vibration of a cantilever beam energy harvester with a tip mass with axial and transverse eccentricity," ICOVP 2019, 14th International Conference on Vibration Problems, September 1-4, 2019, Crete, Greece.
  • S. Ertarla, C. V. Karadag and N. Topaloglu, “Analytical Modeling of a Cantilever Beam Type Vibration Energy Harvester with a Lever Mechanism” ISMA 2018, International Conference on Noise and Vibration Engineering, September 17-19, 2018, Leuven, Belgium.
  • C. Yesilkaya, N. Topaloglu and N. Ciblak, “Modeling, Analysis of, and Experimentation on an Energy Harvester Device for Direct Tire Pressure Monitoring Systems,” OTEKON 2018, 9th International Automotive Technologies Congress, May 7-8, 2018, Bursa, Turkey.
  • Ç. Seckin, N. Topaloglu and K. Safak, "Pasif ve Aktif Motor Takozlarının Modellenmesi ve Analizi," TOK 2015 Otomatik Kontrol Türk Milli Komitesi Ulusal Toplantısı, Denizli, 10-12 Eylül 2015.
  • O. Kaya and N. Topaloglu, Sonlu Eleman Analizi Kullanarak Solenoid Modellenmesi, TOK 2015 Otomatik Kontrol Türk Milli Komitesi Ulusal Toplantısı, Denizli, 10-12 Eylül 2015.
  • C. V. Karadag and N. Topaloglu, 2013, “A Piezoelectric Cantilever Beam with Tunable Natural Frequency,” IWPMA 2013 and 8th Annual Energy Harvesting Workshop, Jul. 14-18, 2013, Hannover, Germany.
  • C. V. Karadag and N. Topaloglu, 2013, “Comparison of Amorphous Metal and Aluminum as a Structural Material for a Cantilever Beam Vibration Energy Harvester,” 6th ECCOMAS Conference on Smart Structures and Materials, Jun. 24-26, 2013, Torino, Italy.
  • N. Topaloglu, A. A. Aksekili and B. Yegin, 2011, “An Optimized Damping Model for Vibration Based Energy Harvesters with Constrained Proof Mass Motion,” IWPMA 2011 and the 6th Annual Energy Harvesting Workshop, Aug. 7-11, 2011, Roanoke, VA, USA. 
  • N. Topaloglu, A. A. Aksekili and B. Yegin, 2011, “A Displacement Dependent Damper For A Vibration Based Energy Harvester,” SET ’11, 10th International Conference on Sustainable Energy Technologies, Sep. 4-7, 2011, Istanbul, Turkey.
  • N. Topaloglu, P. M. Nieva, M. Yavuz and J. P. Huissoon, 2008, “A pixel-by pixel thermal conductance tuning mechanism for uncooled microbolometers,” MNRC’08 1st Microsystems and Nanoelectronics Research Conference, pp. 201-204, Oct. 15, 2008. 
  • N. Topaloglu, P. M. Nieva, M. Yavuz and J. P. Huissoon, “Thermal modeling of thermally isolated microplates,” Proc. SPIE Vol. 6926, 692633 (Apr. 3, 2008), NDE’08, San Diego, US. 
  • N. Topaloglu, C. Elbuken, P. M. Nieva, M. Yavuz and J. P. Huissoon, “Modeling and simulation of a 2-DOF bidirectional electrothermal microactuator,” Proc. SPIE Vol. 6926, 692605 (Apr. 3, 2008), NDE’08, San Diego, US.
  • N. Topaloglu, P. M. Nieva, M. Yavuz and J. P. Huissoon,2007, “A novel method for estimating the thermal conductance of uncooled microbolometer pixels,” ISIE’07 IEEE International Symposium on Industrial Electronics, pp. 1554-8, June 4-7, 2007.
  • N. Topaloglu, P. M. Nieva, M. Yavuz and J. P. Huissoon, 2007, “Thermal Conductance Estimation for Uncooled Microbolometer Pixels,” Proc. of 21st Canadian Congress of Applied Mechanics (CANCAM'07), pp. 740-741, Toronto, ON, June 3-7, 2007.
  • N. Topaloglu, M. Yavuz, J. P. Huissoon and P. M. Nieva “Semiconducting YBa2Cu3O6+x based uncooled microbolometer,” Emerging Materials Knowledge Conference, Toronto, June 2005 (poster presentation).
  • Güldeniz, O., Karadağ, V., Fethi Okyar, A., "A Semi-automatic Parameter Extraction Process for Modeling of Lumbar Vertebral Body Segments", Lecture Notes in Computational Vision and Biomechanics, (2019) 34, pp. 649-658.
  • Okyar, A.F., Safak, K.K., Egrican, N., "Mechanical design and prototyping considerations for an intramedullary nail for extending bone sections", ASME 2010 10th Biennial Conference on Engineering Systems Design and Analysis, ESDA2010, (2010) 1, pp. 725-732.
  • Onbasioǧlu, E., Atalay, B., Goularas, D., Soydan, A.H., Şafak, K.K., Okyar, F., "Visualisation of burring operation in virtual surgery simulation", ASME 2010 10th Biennial Conference on Engineering Systems Design and Analysis, ESDA2010, (2010) 1, pp. 805-812.
  • Bozkurt, S., Şafak, K.K., Sorgüven, E., Küçükaksu, S., Çiblak, N., Okyar, A.F., Akgün, M.A., Ahn, H., Eǧrican, A.N., Lazoǧlu, I., "Control strategies for the left ventricular assist devices [Sol karincik destek cihazlari i̇çin kontrol stratejileri]", Proceedings of 2009 14th National Biomedical Engineering Meeting, BIYOMUT 2009, (2009) art. no. 5130335,.
  • Sorguven, E., Ciblak, N., Okyar, A.F., Akgun, M.A., Egrican, A.N., Safak, K.K., Ahn, H., Lazoglu, S., Kucukaksu, S., "Flow simulation and optimization of a left ventricular assist device", ASME International Mechanical Engineering Congress and Exposition, Proceedings (IMECE), (2007) 8, pp. 1401-1407.

Other Papers

  • H. Ahn, 1996, “Implicit Multicell Venting Code User’s Manual.”  Prepared for Space and Missile Systems Center - Air Force Material Command (Contract No. F04701-93-C-0094), Aerospace Report No. TOR-96(1414)-11 
  • H. Ahn and C. E. Brennen, 1992, Channel flows of granular material and their rheological implications. Particulate Two-phase Flow, (ed. M. C. Roco), Butterworth-Heinemann, 210-243.
  • H. Ahn, 1989, “Experimental and analytical investigations of granular materials: shear flow and convective heat transfer.” Ph.D. Thesis, California Institute of Technology. 
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