• A DFT Study of Si Doped Graphene: Adsorption of Formaldehyde and Acetaldehyde 

  Akyavaşoğlu, Özge; Fellah, Mehmet Ferdi (DergiPark, 2020)

  In this study, Si doped graphene sensor property for indoor volatile contaminants formaldehyde and acetaldehyde has been examined. The B3LYP hybrid method with 6-31G(d,p) basis set has been used for this purpose. The ...

• Cellular response to calcium phosphate cements 

  Cecen, Berivan; Kalemtaş, Ayşe; Topates, Gulsum; Kozaci, Leyla Didem (Elsevier, 2020)

  Calcium orthophosphate (COP) ceramics have been investigated as bone repair materials for many decades. The first in vivo application of these materials was accomplished in 1920 to test tricalcium phosphate performance as ...

• Directed topological complexity of spheres 

  Borat, Ayşe; Grant, Mark (Springer Nature, 2020)

  We show that the directed topological complexity [as defined by Goubault (On directed homotopy equivalences and a notion of directed topological complexity, 2017. arXiv:1709.05702)] of the directed n-sphere is 2, for all ...

• Fault ride-through (FRT) capability and current FRT methods in photovoltaic-based distributed generators 

  Bayrak, Gökay; Ghaderi, Davood; Sanjeevikumar P. (Elsevier, 2020)

  In this chapter, current methods used for fault ride-through (FRT) capability are examined by researching studies on the capacity of FRT in grid-connected photovoltaic (PV) systems after any failures. These methods have ...

• Systematic Customer Value Analysis: A Case Study in the Automotive Industry 

  Çakmak, Tolga; Altun, Koray (Society of Sytematic Innovation, 2021)

  Providing high quality with competitive prices is generally essential in the automotive industry because of the customers (directly automotive OEMs and indirectly their end-users) demanding new and costly features without ...

• A Demand Side Management Controller Configuration for Interleaved DC-DC Converters Applicable for Renewable Energy Sources 

  Ertekin, Davut; Bayrak, Gökay; Subramaniam, Umashankar (Wiley, 2021)

  In Micro-grid applications, accuracy and sensitivity of the Demand Side Management (DSM) process decrease when the load impedance changes. In this study, the impact of the DSM is analyzed and the interleaved structure is ...

• A new signal processing-based islanding detection method using pyramidal algorithm with undecimated wavelet transform for distributed generators of hydrogen energy 

  Yılmaz, Alper; Bayrak, Gökay (PERGAMON-ELSEVIER SCIENCE LTD, 2022)

  Machine learning-based fault detection methods are frequently combined with wavelet transform (WT) to detect an unintentional islanding condition. In contrast to this condition, these methods have long detection and ...

• Effect of diffusion annealing on duplex coated pure titanium produced by hot-dip aluminizing and micro-arc oxidation 

  Yürektürk, Yakup (ELSEVIER SCIENCE SA, 2022)

  In the present study, an Al2O3 ceramic coating was formed on a pure titanium surface with the application of the duplex coating technology produced by combining hot-dip aluminizing (HDA) and micro-arc oxidation (MAO) ...

• A Density Functional Theory Study on Graphene Triple Doped with Ga, Ge, P, Si, and Al 

  Serinçay, Nazmiye; Fellah, Mehmet Ferdi (MAIK NAUKA, 2022)

  The basic properties of graphene surfaces doped with Ga, Ge, P, Si, and Al were investigated using DFT (density functional theory). The structural, electrical, chemical and optical properties obtained by doping three ...

• A novel approach based on type-2 fuzzy sets to augment technology roadmaps 

  Barip, Semanur; Altun, Koray (GAZI UNIV, 2022)

  Importance of RDI outputs is increasing day by day in the business world. Harmony of RDI activities and technology strategies is one of the important guarantees of sustainable success. At this stage, the first thing that ...

• Hydrogen adsorption on Ni doped carbon nanocone 

  Köse, Ahmet; Yüksel, Numan; Fellah, Mehmet Ferdi (ELSEVIER SCIENCE SA, 2022)

  Hydrogen adsorption was investigated on Ni doped carbon nanocone (Ni-CNC) 180 degrees C by Density Functional Theory (DFT). The WB97XD method was used with the 6-31G(d,p) and LanL2DZ basis sets. The electronegativity, HOMO ...

• Consideration of graphene material in PCM with aluminum fin structure for improving the battery cooling performance 

  Aslan, Eyyüp; Aydın, Yusuf; Yasa, Yusuf (WILEY, 2022)

  Phase change material (PCM) based battery thermal management system (BTMS) provides even heat distribution and lower maximum temperature, but it suffers from low thermal conductivity. In this study, the impact of graphene ...

• Strategies to obtain tocopherols, phytosterols and squalene from deodorizer distillates and acid oils using supercritical fluids 

  Adaşoğlu, Nalan; Gece, Ender Gökhan (Transworld Research Network, 2013)

  Recent Research Developments in Lipids, Strategies to obtain tocopherols, phytosterols and squalene from deodorizer distillates and acid oils using supercritical fluids

• The Mechanical Properties of 3D-Printed Polylactic Acid/Polyethylene Terephthalate Glycol Multi-Material Structures Manufactured by Material Extrusion 

  Demir, Emre; Duygu, İnal Kaan; Bedeloğlu, Ayşe (MARY ANN LIEBERT, 2022)

  The mechanical properties of polylactic acid (PLA), polyethylene terephthalate glycol (PETG), and PLA/PETG structures manufactured using the multi-material additive manufacturing (MMAM) method were studied in this work. ...

• Investigation of mechanical properties of hybrid stainless steel/acrylic and carbon fiber reinforced epoxy composite 

  Yılmaz, Ayten Nur Yüksel; Yunus, Doruk Erdem; Bedeloğlu, Ayşe (SAGE PUBLICATIONS LTD, 2022)

  Hybrid composite specimens were produced with stainless steel-acrylic (SSA) and carbon fiber reinforcement in order to achieve ductile behavior compared to CF reinforced epoxy composites. Laminated composites containing ...

• Immobilization of propolis extract on PET fabric for biomedical applications 

  Gümüş, Ömer Yunus; İsmahane, Yssaad (GAZI UNIV, 2022)

  Propolis has biological activity due to its wide variety of phenolic compound content. Propolis usage in many areas such as cosmetics, food, medicine, and biomedicals is becoming widespread day by day due to its antibacterial, ...

• Highly durable spray-coated superhydrophobic surface: Pre-anodizing and fatty acid chain length effect 

  Aras, Ömür; Baydır, Enver; Akman, Buğra (KOREAN INSTITUTE CHEMICAL ENGINEERS, 2022)

  In the study, aluminum plates were first anodized and then coated with ZnO by spray-pyrolysis method. By modification with long chain fatty acid, these surfaces demonstrate superior hydrophobicity and durability. After ...

• Moving-load dynamic analysis of AFG beams under thermal effect 

  Akbaş, Şeref Doǧuşcan (Techno-Press, 2022)

  In presented paper, moving load problem of simply supported axially functionally graded (AFG) beam is investigated under temperature rising based on the first shear beam theory. The material properties of beam vary along ...

• Evaluation of mechanical behavior, bioactivity, and cytotoxicity of chitosan/akermanite-TiO2 3D-printed scaffolds for bone tissue applications 

  Bulut, Büşra; Duman, Şeyma (Elsevier Ltd, 2022)

  This report aimed to evaluate the mechanical behavior, bioactivity, and cytotoxicity of novel chitosan/akermanite-TiO2 (CS/AK/Ti) composite scaffolds fabricated using the 3D-printing method. The morphological and structural ...

• Multi-image Crowd Counting Using Multi-column Convolutional Neural Network 

  Kurnaz, Oğuzhan; Hanilçi, Cemal (Springer, 2022)

  Crowd density estimation is an important task for security applications. It is a regression problem consisting of feature extraction and estimation steps. In this study, we propose to use a modified version of previously ...

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