• Benchmarking torque control strategies for a torsion-based series elastic actuator 

  Uğurlu, Regaip Barkan; Sarıyıldız, E.; Kansızoğlu, Ahmet Talha; Özçınar, Erim Can; Coruk, Sinan (IEEE, 2022-06)

  The diversity in torque-controlled actuators has enabled researchers to address numerous physical human-robot interaction applications with enhanced safety, dependability, and interaction capability [1]. Yet, only a few ...

• Temperature-dependent particle stability behavior and its effect on radiative transfer in water/SiO2 nanofluids 

  Al-Gebory, Layth Wadhah Ismael (Yildiz Technical University, 2021-09)

  Radiative transfer is one of the methods of energy transport that includes in a wide range of applications and we feel it in our daily lives. Thermal radiation transfer plays an effective role in the utilization of renewable ...

• Low-cycle fatigue behavior of friction stir-welded copper joints 

  Ghobadlou, Ali Hosseinzadeh; Salahi, Salar; Radi, Amin; Sajadifar, Seyed Vahid; Yapıcı, Güney Güven (Springer, 2021-11)

  Investigation of the fatigue response of friction stir-welded (FSWed) joints is especially important in the design and manufacturing of components with exposure to cyclic loading. In this study, cyclic response of FSWed ...

• Optical and radiative properties of individual and hybrid nanosuspensions: The effects of similar and dissimilar particle agglomerates on thermal radiation 

  Al-Gebory, Layth Wadhah Ismael (Yildiz Technical University, 2021-02)

  Nanosuspensions are proposed for use in improving the thermal efficiency of different thermal systems; including solar thermal power plants. Because of their excellent and unique thermo-optical properties, which are the ...

• Exploring the performance limits of MOF/polymer MMMs for O2/N2 separation using computational screening 

  Dağlar, H.; Fındıkçı, İlknur Eruçar; Keskin, S. (Elsevier, 2021-01-15)

  Air separation is one of the most challenging separations because of the very similar molecular dimensions of gas molecules. We used a high-throughput computational screening approach to identify the upper performance ...

• First-principle diffraction simulations as a tool to solve the nanodiffraction problem 

  Öztürk, Hande; Noyan, I. C. (International Union of Crystallography, 2021-08)

  N/A

• Severe plastic deformation as a processing tool for strengthening of additive manufactured alloys 

  Ghobadlou, Ali Hosseinzadeh; Radi, Amin; Richter, J.; Wegener, T.; Sajadifar, S. V.; Niendorf, T.; Yapıcı, Güney Güven (Elsevier, 2021-08)

  For the first time, the novel combination of multi-pass equal channel angular extrusion/pressing (ECAE/P) and selective laser melting (SLM) was investigated. Herein, four passes of ECAP via route Bc at 150 °C were applied ...

• On the fatigue and fracture behavior of keyhole-free friction stir spot welded joints in an aluminum alloy 

  Yapıcı, Güney Güven; Bajilane, Isam Jabbar Ibrahim (Elsevier, 2021-03)

  The target of this research study was to evaluate the shear-tensile and fatigue behavior of aluminum 6061 alloy welds, in two different heat treatment conditions, joined by the recently developed intermediate layer friction ...

• Effect of fuel choice on conductivity and morphological properties of samarium doped ceria electrolytes for IT-SOFC 

  Uzun, Burcu Aygün; Sarıboğa, V.; Öksüzömer, M. A. F. (TÜBİTAK, 2021)

  The present investigation is emphasized on the effect of various combustion agents on the crystal properties, surface microstructure, and oxygen ion conductivity of 20% mole-Sm doped ceria (Ce0.80Sm0.20O1.90/SDC20) ceramics ...

• Recent advances in simulating gas permeation through MOF membranes 

  Dağlar, H.; Fındıkçı, İlknur Eruçar; Keskin, S. (Royal Society Publishing, 2021-08-21)

  In the last two decades, metal organic frameworks (MOFs) have gained increasing attention in membrane-based gas separations due to their tunable structural properties. Computational methods play a critical role in providing ...

• An efficient design methodology for graded surface-based lattice structures using free-size optimization and enhanced mapping method 

  Şimşek, Uğur; Özdemir, Mirhan; Şendur, Polat (Elsevier, 2021-11-15)

  In this paper, a novel Free-size Optimization based Graded Lattice Generation (FOGLG) method, that generates the functionally graded lattice (FGL) structures using free-size optimization, is proposed. In addition, the ...

• Hardness and wear resistance of roller burnished 316L stainless steel 

  Tugay, İbrahim Orhun; Ghobadlou, Ali Hosseınzadeh; Yapıcı, Güney Güven (Elsevier, 2021)

  This study investigates the effects of roller burnishing on the microstructure, surface microhardness, and wear resistance of 316L stainless steel. Experimental design based on the Taguchi orthogonal array was employed to ...

• Thermal and optical characterization of white and blue multi-chip LED light engines 

  Cengiz, Ceren; Azarifar, Mohammad; Arık, Mehmet (IEEE, 2021)

  A clear understanding of thermal characteristics for light emitting diodes (LEDs) is at the center of attention for lighting industry. Especially accurate evaluation of the junction temperature of various light engines is ...

• Application of novel constrained groove pressing routes on austenitic stainless steel 

  Özdemir, Zeynep Güler; Yapıcı, Güney Güven (Springer, 2021-11)

  In this study, a novel set of constrained groove processing routes was put forward especially to underline the variation of strain paths. Namely, 304 stainless steel sheets were processed by five distinctly specified ...

• The effect of spotwelds and structural adhesives on static and dynamic characteristics of vehicle body design 

  Tuncer, Gözde; Mansouri, Deniz; Şendur, Polat (Sage, 2021-10)

  Spotwelding and structural adhesive applications are two important processes in the automotive industry as they are closely associated with the functional requirements, weight, and cost of the vehicle. Even though there ...

• Tepki kuvveti gözetleyici tabanlı tork kontrolü 

  Özçınar, Erim Can; Uğurlu, Regaip Barkan (Gazi Üniversitesi, 2021-12)

  In this article, a reaction force observer-based torque controller was designed and experimentally implemented to a non-backdrivable actuator unit. Torque control is of importance when considering physical human-robot ...

• Effect of aging on the mechanical behavior of aluminum-steel composites processed by accumulative roll bonding 

  Tahir, Furqan; Yapıcı, Güney Güven (Elsevier, 2021)

  Severe plastic deformation (SPD) processes have been widely used to provide ultrafine-grained (UFG) structures along with enriched strength in various metals. This study focuses on accumulative roll bonding (ARB), an SPD ...

• A coupled material removal model for chemical mechanical polishing processes 

  Akbar, Wazir; Ertunç, Özgür (IOP Publishing, 2021-10-01)

  Chemical mechanical polishing (CMP) is a process used to obtain planarized surfaces in microelectronic device manufacturing. The planarization is achieved by material removal from the wafer surface by synergistic effect ...

• An investigation into the optothermal behavior of a high power red light emitting diode: impact of an optical path 

  Muslu, Ahmet Mete; Özlük, Burak; Arık, Mehmet

  Monochromatic light emitting diodes (LEDs) are getting more attention day by day for a very wide range of applications such as general lighting, signage, automotive lighting, display, water purification, and skin imaging. ...

• On the individual droplet growth modeling and heat transfer analysis in dropwise condensation 

  Azarifar, Mohammad; Budaklı, M.; Başol, Altuğ Melik; Arık, Mehmet (IEEE, 2021-10)

  The low convective coefficient at condenser part of spreaders and vapor chambers due to film blanket blocking encourages utilizing dropwise condensation (DWC). Challenges exist in the experimental characterization of DWC, ...

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