Ongoing Projects

• Marmara University BAPKO Normal Research Projects 27.08.2025 - 27.08.2027
  Project No: FBA-2025-11758
  Research Team: Uğur Yahşi, Cumali Tav, Sümeyye Veziroğlu 
  Title: Investigation of the Conductivity-Free Volume Mechanism of Li Solid Polymer Electrolytes Using Positron Techniques.
  Support: $7,300

 

• ADEP – Research University Project, 20.05.2025 - 20.05.2027
  Project No: ADF-2025-11541
  Research Team: Ayşe Yumak Yahşi, Sümeyye Veziroğlu, Lütfi Arda, Cumali Tav, Uğur Yahşi
  Title: Obtaining high-density materials from nanomaterials synthesized by different methods by flash sintering technique and investigating their mechanical, optical, magnetic, and electrical properties.
  Support: $13,000
  
  
• Marmara University BAPKO PhD Thesis Project, 30.05.2023-30.9.2025
  Project No: FDK-2023-10992
  Research Team: Uğur Yahşi, Zainab Raad Shamsulddin and Lütfi Arda
  Title: Investigation of the Effects of Flash Sintering Technique on Point Defects of Doped ZnO Structures
  Support: $1,900

 

Completed Projects

• Marmara University BAPKO MSc. Thesis Project, 03.01.2022–03.04.2024
  Project No: FYL-2022-10780
  Research Team: Uğur Yahşi, Ayşe Yumak Yahşi and Aseel Almashyak
  Title: Relaxation Time of Some Melt Polymers as a Function of Void Fraction Calculated from Simha-Somcynsky Theory
  Support: $1,800
  
  
• Bolu Abant İzzet Baysal University Scientific Research Projects, 28.09.2020-28.9.2022
  Project No: BAP 2020.29.02.1474
  Research Team: Uğur Soykan, Sedat Çelik, Gürcan Yıldırım, Cumali Tav and Uğur Yahşi
  Title: Development of Polyurethane Foam Materials with Turkey Feather Additive for Insulation Purposes and Determination of Usage Potentials
  Support: $4,250
  
  
• Marmara University Scientific Research Project (A type), 11 July 2018-11 July 2020
  Research Team: Uğur Yahşi, Ayşe Yumak Yahşi, Cumali Tav and Hümeyra Kılıç
  Title: Investigation of Vacancy Structure of PAMAM Dendrimers using Positron Annihilation Lifetime Spectroscopy
  Support: $13,300
  
  
• Marmara University Scientific Research Project (C type), 21 Nov 2018-21 Nov 2020
  Research Team: Ayşe Yumak Yahşi, Uğur Yahşi, Cumali Tav and Hümeyra Kılıç
  Title: Investigation of Free Volume Behavior of PAMAM Dendrimers using Positron Annihilation Lifetime Spectroscopy
  Support: $4,100
  
  
• Marmara U. Research & Development Infrastructure Project (E type), June 2013-June 2016
  Research Team: Uğur Yahşi and Other Departmental Faculties
  Title: Advanced Laboratory Project
  Support: $157,000
  
  
• TÜBİTAK, 1 July 2007-1 July 2009
  Research Team: Uğur Yahşi, C. Tav, K. Ulutas, H. Deligoz, G. Erdemci, B. Coskun
  Title: Polymer-Ionic Salt Electrolytes: (I) Investigation of Conductivity-Free Volume Relationship by Positron Annihilation Techniques and (II) Usage in PEM Type Fuel Cells
  Support: $130,000
  
  
• Marmara University Scientific Research Project (C type), May 2007-November 2008
  Research Team: Uğur Yahşi and Mustafa Arslan (PhD Student).
  Title: Dallanmış ve Dentrimer Makromoleküler Yapıların İstatistiksel Termodinamiği.
  Support: $17,300
  
  
• Marmara University Scientific Research Project (A type), June 2006-June 2008
  Research Team: Cumali Tav and Uğur Yahşi
  Title: Investigation of Nanometric Defect Structure of Materials by Double-Detector Coincidence Doppler Broadening Radiation
  Support: $28,000
  
  
• State Planning Organization Research & Development Project, 1 Jan 2006-30 Dec 2009
  Research Team: Cumali Tav and Ugur Yahsi
  Title: Characterization and Investigation of Nanometric Defects of Thin Films by Positron Beams
  Support: $515,000

 

• TÜBİTAK, 3 May 2006-2 May 2009
  Research Team: Cumali Tav and Uğur Yahşi
  Konu: Investigation of Nanometric Structural Defects of Materials using Doppler Broadening Annihilation Radiation (DBAR)
  Support: $91,500

 

• Marmara University Graduate Study Research Project, Jan 2003-june 2006
  Research Team: Uğur Yahşi and Pınar Başer (PhD Student)
  Title: Electronic Properties of Low-Dimensional Systems: The Hydrogenic Impurities And Excitonic Binding Energies In Cylindrical AlxGa1-xAs/GaAs as Quantum Wires Under An Externally Applied Magnetic Field
  Support: $9,600
  
  
• Marmara University Scientific Research Project, Jan. 2003-July 2005
  Research Team: Uğur Yahşi and Cumali Tav
  Title: Investigation of the Nanometric Structure of Macromolecules using Positron Annihilation Spectroscopy
  Support: $20,000

 

• State Planning Organization Research & Development Project, Jan. 1998-Dec. 2001
  Research Team: Uğur Yahşi
  Title:  Investigation of Viscous and Viscoelastic Properties of Macromolecules using Positron Annihilation Spectroscopy
  Support: $50,000

 

• TÜBİTAK, 1 Sept. 2000-1 Sept. 2004
  Research Team: Uğur Yahşi
  Title:  Investigation of the Nanometric Structure of Macromolecules using Positron Annihilation Spectroscopy
  Support: $20,000

 

• Marmara University Priority Research Project
  Research Team: Uğur Yahşi
  Title: Relationship Between PVT and Viscous Behavior of Hydrocarbon Liquids
  Support: $2,500