Prof. Dr. Yusuf ŞAHİN

Head of Department

E-mail: yusuf​.s​ahin@ostimteknik.edu.tr  

• PhD : Aston University
• MSc : Gazi University
• BSc : Gazi University

He completed his Bachelor's degree in 1977 and his Master's degree in 1988 at Gazi University, Ankara. In 1995, with the support of the Council of Higher Education (YOK), he completed his PhD research at Aston University, Department of Mechanical Engineering (UK) on the development of metal matrix composites and improvement of their mechanical and wear behavior.

He became Assistant Professor at Gazi University, Faculty of Technical Education, Department of Mechanical Education in 1995, Associate Professor in 1996 and Professor at Gazi University in 2002. He gave lectures at the Military Academy and Atılım University Mechanical Engineering Department. In 2011, he transferred to Gazi University Faculty of Technology, Department of Manufacturing Engineering. In 2013, he conducted research at Virginia Polytechnic University as a Visiting Professor. On March 8, 2015, he continued his studies for more than a year as a Research Professor at the Department of Mechanical, Construction and Manufacturing Engineering (Soete Lab.) at Ghent University, Belgium. ​

In 2018, he retired from Gazi University. Prof. Şahin was appointed to the Department of Mechanical Engineering at Near East University in 2018. On August 17, 2020, he moved to Nişantaşı University Department of Mechanical Engineering. He successfully completed the project titled “Production of hybrid composites by VARTIM method and improvement of mechanical properties”. Mechanical Engineering department won “Mechanical Test Lab./Composite Production Lab.” Stanford University announced the top 2 percent of the world's scientists. Prof. Şahin managed to be included in the list of “The World's Most Influential Scientists”, which was created by taking into account the “1996-2020 Studies”. He also served as the Conference chairman at the “6th International / 7th International Engineering, Technology and Management Congress” Online conference organized in Istanbul in 2021 and 2022. On September 27, 2022, he left his post.

Prof. Sahin joined the Department of Mechanical Engineering at OSTIM Technical University on October 7, 2022. His area of expertise consists of Machine Tools, Chip Removal Technology, Wear/Friction, Manufacturing Processes, Powder Metallurgy, Experimental Design and Analysis as well as ANN methods. He has presented papers in National and International Symposiums and published more than 160 original articles in well-known foreign journals. In addition, he has a total of 5 published books. 

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Prof. Dr. D​emiral AKBAR 

E-mail: demiral.akbar@ostimteknik.edu.tr 

• PhD : Middle East Technical University
• MSc : Mosul University
• BSc : Mosul University

Prof. Dr. Demiral AKBAR received his Ph.D. in Plasma and High Energy Physics from Middle East Technical University (METU) in 2006, following his M.Sc. (1996) and B.Sc. (1993) degrees in the same field. He has conducted advanced research and collaborative work at several major research institutions, including the Turkish Accelerator Center (TAC), Forschungszentrum Jülich GmbH (TEXTOR), and Helmholtz-Zentrum Dresden-Rossendorf (FEL-Free Electron Laser).

Prof. Akbar has actively contributed to the development, design, and commissioning of renewable energy and energy storage systems in partnership with both national and international industries. His recent work increasingly focuses on renewable energy systems and hydrogen production and storage technologies, including the design of high-efficiency hydrogen tanks, cryogenic systems, and solid-state hydrogen carriers for aerospace and industrial applications.

Since 2019, he has taken on key roles in industry-integrated R&D projects, with a focus on sustainable manufacturing, digital transformation, and innovation ecosystems. His research interests span a wide range of areas, including industrial energy efficiency, carbon footprint analysis, smart manufacturing, digital transformation technologies, Industrial Internet of Things (IIoT), blockchain-based energy systems, peer-to-peer (P2P) energy trading, and green technologies and their applications.

He has also worked extensively on life cycle engineering, lean production systems, and decision-support tools for Industry 4.0 applications, contributing to national energy strategies and sustainable production models. He continues to collaborate with industry on advanced energy systems, with a special emphasis on the integration of emerging technologies including hydrogen to achieve decarbonization goals in manufacturing and infrastructure.

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Prof. Dr. Birol KILKIŞ

E-mail: birol.kilkis@ostimteknik.edu.tr 

• PhD : Middle East Technical University
• MSc : Middle East Technical University / Von Karman Institute
• BSc : Middle East Technical University

Dr. Kilkis received his Ph.D. degree in Mechanical Engineering with high honors from Middle East Technical University and graduated in 1972 from von Karman Institute for Fluid Dynamics in Belgium with Honors. Dr. Kilkis has been working on heat transfer, unified heat transfer theory, high-performance buildings, quantum mechanics, fluid dynamics, heat pumps, energy strategies, hydrogen energy with renewable energy systems, hydrogen cities, 5th generation Net-zero exergy cities, district energy systems, aerodynamics, exergy analysis, combined heat and power, tri-generation, green airports, sustainable aviation, integrated solar PV systems, and energy simulations. He is the co-author of a most recent book on Cogeneration with Renewables. In total, he has published more than 600 papers in several journals and proceedings on a large variety of topics. Since 1972, he has been the principal investigator of several industrial projects, including a NATO Science for Stability project on a de-centralized, co-generating 1.5 MW fluidized-bed power plant. He had been a contractor to DOE, Morgantown Energy Technology Center in West Virginia twice on fluidized bed heat transfer modeling. Between 1998 and 1999, he acted as the project principal for snow melting systems for Air Force bases, heat tracing of fighter jet aircraft during freezing periods, and snow/ice melting of helicopter pads on Navy Vessels. He taught at METU, Gannon University and University of Missouri Rolla in the USA, and Baskent University. Currently he is the Regional Distinguished Lecturer of ASHRAE and the vice-chair, and WP 1 Leader in ETIP Renewable Heating and Cooling in the European Union, Brussels.

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Prof. Dr. Halil Rıdvan ÖZ  

E-mail: halilridvan.oz@ostimteknik.edu.tr 

• PhD : Celal Bayar University
• MSc : Celal Bayar University
• BSc : Middle East Technical University

Prof. Dr. Halil Rıdvan ÖZ received his bachelor's degree from the department of mechanical engineering at Middle East Technical University in 1992, his master's and doctorate degrees in machine theory and dynamics field from Celal Bayar University in 1995 and 1999 respectively. He investigated nonlinear vibrations of curved beams and vibrations of axially moving continua in his graduate studies. He received his associate professor degree in 2000. He conducted research on mucus clearance in respiratory airways at UNR in USA with a TÜBİTAK NATO B1 scholarship. He stayed at the same university for 2 years and taught various courses. Later, he returned to Turkey and worked at Gaziantep, Fatih, Üsküdar, Istanbul Aydın and Iğdır universities, respectively. His research interests include mechanical vibrations, perturbation techniques, differential equations, nonlinear dynamics, finite element analysis, signal processing, artificial intelligence, non-Euclidean geometry, and university competence analysis. He worked as a principal investigator or researcher in TUBITAK, KOSGEB, ISTKA and BAP supported projects. He provided management and R&D consultancy to many companies. 

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Prof. Dr. Hüsnü ÖZKAN  

E-mail: husnu.ozkan@ostimteknik.edu.tr 

• PhD : Marquette University
• MSc : Middle East Technical University
• BSc : Middle East Technical University

Graduated from Physics Department of the Middle East technical University (METU) in 1968. Received MS degree from the same department in 1971. Same year appointed research assistant at the Mechanical Engineering Department of Marquette University (USA) where, he enrolled for the Ph.D. programme. Carried out research studies at Chicago Üniversity and Argonne National Laboratory (USA), awarded Arthur J. Schmitt Foundation Grant for his research achievements. He has received Ph.D. degree from the Material Science Division of MU in 1975. Same year he returned to METU where, he was promoted to associate professor in 1981 and professor in 1989. During 1988-1990, he thought courses and carried out research at MU and at Saginaw Valley State University (SVSU-USA) as a Fulbright professor. Thought courses and carried out research studies during 1990, 1993 and 1999 summer terms at SVSU. At METU, he was a member of the Scientific Research Committee (BAP) and Micro and Nano Technology Graduate Program more than ten years. At the Physics Department, for a long time he was the chairman of the Solid-State Science Division and the Doctoral Committee. He studied the structural, mechanical and electromagnetic properties and their variations with temperature, pressure and radiations for the technologically important materials as the silicates, superconductors, ferromagnets and ultrahigh temperature ceramics. He has established XRD and Superconductivity Laboratories at the Physics Department and played active role for developing the Central Research Laboratory at METU. Thought numerous undergraduate and graduate courses, supervised many M.S and PhD. thesis and received several performance prices. Completed several research projects supported by the national (TÜBİTAK ve BAP) and international (NSF - USA, International Atomic Energy Agency - IAEA) institutions. Worked at METU until 2011, from 2011 to 2023 he was at Istanbul Aydin University (IAU). Appointed to the Engineering Faculty of Ostim Technical University February 2024. Published 77 scientific articles in high rated SCI journals in addition of the numerous national and international scientific conference presentations, His papers have been cited by about 1500 research articles and books. 

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Prof. Dr. Harun BİLİRGEN

E-mail: harun.bilirgen@ostimteknik.edu.tr  

• PhD : Lehigh University
• MSc : Lehigh University
• BSc : 

Prof. Dr. Harun Bilirgen pursued his Master's and Doctoral studies at the Energy Research Center of Lehigh University in the USA. His research focused on experimental and numerical investigations of two-phase gas-particle flows in pneumatic conveying systems. He then carried out postdoctoral research in the Chemical Engineering Department at Lehigh University from 2000 to 2002.

From 2002 to 2013, he worked as a Principal Research Scientist at the Energy Research Center of Lehigh University's Mechanical Engineering Department. He conducted research on thermal efficiency enhancement, combustion and process optimization, emission reduction and compliance, CO2 capture and storage, waste heat/water recovery and integration of wastes into industrial facilities, algae production from waste water and flue gas using photo-bioreactors, coal drying and beneficiation, and design and optimization using CFD modeling. He served as project leader and team member in various applied projects in the US, Turkey, China, Mexico, and Canada. During his tenure at Lehigh University, he had the opportunity to present papers at numerous international conferences, publish articles, and obtain eight US patents.

In late 2013, with the intention of transferring the knowledge, know-how, and experience he had acquired abroad to his home country, Prof. Dr. Bilirgen returned to Turkey and founded an R&D company that specializes in energy and environmental technologies. The company has conducted applied R&D projects in Turkey, the US, Mexico, and Indonesia. 

In recent years, his work has focused on renewable energy, and he has been conducting TÜBİTAK-supported studies on the design and implementation of a micro-hydro turbine.

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Prof. Dr. Kadir AYDIN

E-mail: kadir.aydin@ostimteknik.edu.tr

• PhD : Liverpool University
• MSc : Çukurova University
• BSc : Çukurova University

He completed his primary, secondary and industrial vocational high school education in Akşehir/Konya. He subsequently obtained a Bachelor of Science (BSc) degree from Çukurova University's Mechanical Engineering Department in 1983, followed by a Master of Science (MSc) degree in 1986. In 1984, he assumed the role of Research Assistant at the Mechanical Engineering Department of Çukurova University. Following the completion of his MSc, he was appointed as a Lecturer in the same department in 1986. In 1988, he was awarded a scholarship by the YÖK to pursue a PhD in the field of Mechanical Engineering at the University of Liverpool, which he completed in 1993. He then served as Assistant Professor in the Department of Mechanical Engineering at Çukurova University between 1993-1995, Associate Professor between 1995-2001, Professor between 2001-2022, and Professor in the Department of Automotive Engineering at Çukurova University between 2022-2025. In 1998, he conducted research at the Technical Combustion Institute of the University of Hannover in Germany with a NATO scholarship. He voluntarily retired on 17 February 2025, and subsequently assumed the role of full-time Professor in the Department of Mechanical Engineering at Ostim Technical University.

In addition to his administrative duties in public institutions such as Çukurova University, TÜBİTAK, and TENMAK, Prof. Dr. Kadir Aydın served as the Chairman of the Board and General Manager of the Çukurova Technology Development Zone (Çukurova Teknokent) between 2013-2020. His research interests include, but are not limited to, the following: internal combustion engines, vehicle technology, combustion, hybrid and electric vehicles, alternative, renewable and green fuels (hydrogen, biodiesel, bioethanol, biogas, green methanol etc.) and additive/hybrid manufacturing. In addition to his registered patents, he has over 300 published national and international books, articles and papers. Furthermore, he has successfully completed numerous R&D projects, both nationally and internationally, that have received substantial support.

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Assist. Prof. Dr. Pelin Tören ÖZGÜN

E-mail: pelin.ozgun@ostimteknik.edu.tr

• PhD : İhsan Doğramacı Bilkent University
• MSc : 
• BSc : Izmir Institute of Technology

She graduated in 2005, from Izmir Atatürk High School (est. 1888), which is located in Izmir. PTÖ received her BSc degree with high honors from Chemical Engineering from Izmir Institute of Technology in 2011. Afterwards, she conducted her PhD studies on silicon-based optical microresonators for label-free biosensing applications. In 2016, she received her PhD degree from National Nanotechnology Research Center (UNAM) at Ihsan Dogramaci Bilkent University (Ankara, Türkiye), in Materials Science and Nanotechnology. Within the same year, she started working as a Post-Doctoral Researcher in Joanneum Research under Materials Institute - for Surface Technologies and Photonics - (Weiz, Austria). Following 2018, she continued working in Joanneum Research as a Research Associate until 2021. During her years in Joanneum Research, she contributed to the scientific research in various European Union projects, which mainly focused on the pilot-line development and production of disposable and polymer-based, fluidic in-vitro diagnostic (IVD) chips for DNA/protein detection purposes. One of those Horizon2020 projects (R2R Biofluidics) led by Joanneum Research, received Austrian Fast Forward award in 2018. In addition to that, with her co-workers, she published an article, which describes successfully the multiplexed DNA detection of the IVD chips produced via the pilot-line, in Lab on a Chip Journal (2020). The study was featured as „Inner Front Cover“ and high-lighted in Issue 22 of the journal. The same study received „Best Performance (Paper)“ award in the 10th Internal Joanneum Research Conference (i.e., „Zukunftskonferenz“) in Graz city in 2021. In September 2021, PTÖ returned back to home. Since June 2022, she has been working as an Assistant Professor in Ostim Technical University. PTÖ authored/co-authored ten scientific publications in high-ranking, international peer-reviewed journals. Among these scientific publications, there is also a review article on microresonators, which was published in Lab on a Chip Journal. To this day, PTÖ also attended leading national and international scientific conferences as a speaker. The research interests of PTÖ mainly focuses on Point-of-Care Diagnostic Systems, Lab-on-Chip Technologies, Biosensors, (Nano)Biomaterials, Biomedical Device Technologies, Photonic Sensors and Optical Microresonators.

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Assist. Prof. Dr. Şafak NESLİ 

(Co-Head of Department)  

E-mail: safak.nesli@ostimteknik.edu.tr 

• PhD : Gazi University
• MSc : University of Greenwich
• BSc : Çukurova University

Dr. Şafak NESLİ received his B.S. degree in Mechanical Engineering at Çukurova University in 2014. He received his M.Sc. degree in Mechanical and Manufacturing Engineering at the University of Greenwich in 2016 with a thesis on Rapid Prototyping/manufacturing of Product Assemblies, and his Ph.D. degree with a thesis on Laser Polishing of Part Surfaces Produced by Additive Manufacturing in 2022 from Gazi University Mechanical Engineering. He also worked as a researcher at Gazi University in the field of Additive Manufacturing within the scope of YÖK 100/2000 Ph.D. project between 2017-2022. He took part as a researcher in many projects supported by TUBITAK and other organizations. His main research areas are additive manufacturing and laser polishing processes. 

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Assist. Prof. Dr. Hikmet BAL  

E-mail: hikmet.bal@ostimteknik.edu.tr 

• PhD : Gazi University
• MSc : Gazi University
• BSc : Anadolu University / Gazi University

Assist. Prof. Dr. Hikmet Bal received his Ph.D. (2019) and M.Sc. (2006) in Machine Theory and Dynamics from the Mechanical Engineering Department of Gazi University Faculty of Engineering, where he also completed his B.Sc. in Mechanical Engineering (2002). His doctoral research focused on vibration behavior of shaft-bearing systems in wind turbine, with considering Elastohydrodynamic lubrication (EHL) effects. Dr. Bal has obtained extensive multidisciplinary professional experience, having served as technical staff for information technology systems, UAV technical staff and expert engineer and HVAC project engineer at government, army and industry. His research of interest includes multibody dynamics, mechanical system vibrations, vision systems, signal processing, unmanned aerial vehicles (UAVs), data mining, and structural vibrations. He has participated as an investigator and researcher in numerous projects supported by TÜBİTAK, KOSGEB, and BAP funding programs. Dr. Bal has authored publications in peer-reviewed journals in his field of expertise.

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Assist. Prof. Dr. Akif HACINECİPOĞLU  

E-mail: akif.hacinecipoglu@ostimteknik.edu.tr 

• PhD : Middle East Technical University
• MSc : Middle East Technical University
• BSc : Middle East Technical University

Dr. Akif Hacınecipoğlu received his B.S. degree in Mechanical Engineering at Middle East Technical University (METU) in 2009. After graduation, he worked as teaching and research assistant in the same department from 2010 until 2018. He received his M.Sc. degree with a thesis on development of a tele-operated semi-autonomous ground vehicle in 2012 and his Ph.D. degree with development of predictive human-aware navigation systems for mobile robots in 2019 from Mechanical Engineering department of METU. He founded Milvus Robotics Ltd in 2011 where, with his co-founders, he developed Turkey’s first autonomous mobile robots for material handling needs in factories and warehouses. He also worked as a researcher and project manager in different robotics projects funded by TUBITAK and various associations. His main research areas are robotics, robot vision, autonomous systems, path planning and navigation.

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Assist. Prof. Dr. Besim BARANOĞLU

E-mail: besim.baranoglu@ostimteknik.edu.tr 

• PhD : Middle East Technical University
• MSc : Middle East Technical University
• BSc : Middle East Technical University

Dr. Besim Baranoğlu recieved his B.S. degree in Mechanical Engineering at METU (in 1994). He then completed his M.Sc. in the same department (and university) in 1996. Dr. Baranoğlu received his Ph.D. in Engineering Sciences Dept. of METU in 2003 with his thesis titled “The use of Dual Reciprocity Boundary Element Method in Thermoelasticity and Thermoviscoelasticity”. Dr. Baranoğlu joined Baskent University department of Industrial Engineering (and later transferred to Mechanical Engineering) in 2003. Within the year 2007 he started working with the Manufacturing Engineering Department of Atılım University. He assumed the positions of founding executive board member and later vice president of the executive board of Metal Forming Center of Excellence founded in Atılım University in 2010. He was assigned as the president of Metal Forming Center of Excellence in 2017. Dr. Baranoğlu founded the Novumek Engineering Ltd. in 2013 which later renamed as Novumek Technolgy Corp. in 2021. Dr. Baranoğlu joined the Mechanical Engineering Dept. of Ostim Technical University in 2022. He participated in many projects supported under TUBITAK (1001, 1005, 1007, 1501, 1507, 1505, 1707), KOSGEB, SANTEZ, SAYP, EU-7th Framework programme and IPA as project manager, researcher and consultant. Dr. Baranoğlu is currently an academic consultant with the Prota – Technology Production Workshop which is founded within the OSTIM Technopark. His research interest lie in the fields of numerical analysis (boundary element method and finite element method), mechanics of continuous media, manufacturing methods and simulation in manufacturing methods (esp. in metal forming).

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Research Assist. Ekrem NUGAYOĞLU

E-mail: ​ekrem.nugayoglu@ostimteknik.edu.tr

• MSc : Ostim Technical University
• BSc : Selçuk University

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Research Assist. Muhammed ERCAN

E-mail: muhammed.ercan@ostimteknik.edu.tr

• MSc : Gazi University
• BSc : Selçuk University

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Prof. Dr. Yunus A. ÇENGEL 

E-mail: yunus.cengel@ostimteknik.edu.tr

• PhD : North Carolina State University, USA
• MSc : 
• BSc :  Istanbul Technical University

Yunus Çengel is Professor Emeritus at the University of Nevada, Reno, USA and the founding dean of the Faculty of Engineering at Adnan Menderes University in Aydin, Turkey. He received his Ph. D. in Mechanical Engineering from North Carolina State University in USA. Before joining ADU in 2012, he held the position of the Dean of the Faculty of Mechanical Engineering at Yildiz Technical University YTU and as Advisor to President at Scientific and Technological Research Council TUBITAK on international cooperations. He also served as the advisor to several government organizations and private companies on energy efficiency, energy policies, and education reform. Professor Çengel is the author or coauthor of the widely adopted textbooks such as Thermodynamics: An Engineering Approach, Fundamentals of Thermal-Fluid Sciences, Heat and Mass Transfer: Fundamentals and Applications, Fluid Mechanics: Fundamentals and Applications published by McGraw-Hill and translated into Chinese, Japanese, Korean, Thai, Spanish, Portuguese, Turkish, Italian, Greek, and French

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Assist. Prof. Dr. Yahya KARA

E-mail: yahya.kara@ostimteknik.edu.tr

• PhD : Budapest University of Technology and Economics
• MSc : Budapest University of Technology and Economics
• BSc : Ataturk University

Dr. Kara earned a B.Sc. in Mechanical Engineering from Ataturk University in 2016, MSc. in Mechanical Engineering Modelling from the Budapest University of Technology and Economics in 2018, and a Ph.D. in Mechanical Engineering from Budapest University of Technology and Economics in 2022. Dr. Kara has a proven track record of success developing polymeric nano-/submicron fibers, nanocomposites, and fiber-reinforced polymer composites for various engineering applications. He published highly impacted articles, books, chapters, and patents. Dr. Kara has many years of experience in industry-oriented research and development engineering projects. He is an expert in polymer science and engineering, designing and modeling fiber-reinforced polymer composites, nanocomposites, additive manufacturing, dynamic and static mechanical testing, impact testing, rheology, and polymeric materials characterization.

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