• Development and 3D spatial calibration of a parallel robot for percutaneous needle procedures with 2D ultrasound guidance 

  Ahmad, Mirza Awais; Orhan, Sabri Orçun; Yıldırım, Mehmet Can; Bebek, Özkan (World Scientific, 2017-12-01)

  Robotic systems are being applied to medical interventions as they increase the operational accuracy. The proposed autonomous and ultrasound guided 5-DOF parallel robot can achieve such accuracy for needle biopsies, which ...

• An integrated design approach for a series elastic actuator: Stiffness formulation, fatigue analysis, thermal management 

  Yıldırım, Mehmet Can; Şendur, Polat; Bilgin, Onur; Gülek, Berk; Yapıcı, Güney Güven; Uğurlu, Regaip Barkan (IEEE, 2017-12-22)

  This paper presents an integrated mechanical design approach for the long-Term and repetitive use of series elastic actuators (SEAs). Already, computational models for series elastic actuator design have been developed in ...

• International roaming traffic optimization with call quality 

  Şahin, Ahmet; Demirel, Kenan Cem; Albey, Erinç; Gürsun, Gonca (SciTePress, 2019)

  In this study we focus on a Steering International Roaming Traffic (SIRT) problem with single service that concerns a telecommunication’s operators’ agreements with other operators in order to enable subscribers access ...

• Ensemble Learning based on Regressor Chains: A Case on Quality Prediction 

  Demirel, Kenan Cem; Şahin, Ahmet; Albey, Erinç (SciTePress, 2019)

  In this study we construct a prediction model, which utilizes the production process parameters acquired from a textile machine and predicts the quality characteristics of the final yarn. Several machine learning algorithms ...

• Numerical analysis of solar radiation effects at indoors with internal partitions and external solar shades 

  Yelekci, Ali Can; Keskin, Cem; Mengüç, Mustafa Pınar (International Solar Energy Society, 2020)

  A numerical study is conducted to couple natural convection in an office space with thermal radiation due to solar radiation. The study specifically investigates the effect of partitions located between desks of the office ...

• Relaying techniques for free space optical communications 

  Aminikashani, Mohammadreza; Uysal, Murat (Institution of Engineering and Technology, 2019-01-01)

  Despite the major advantages of FSO technology and variety of its application areas, its widespread use has been hampered by its rather disappointing link reliability particularly in long ranges due to atmospheric ...

• Computational and experimental investigation of vibration characteristics of variable unit-cell gyroid structures 

  Şimşek, Uğur; Gayir, C.; Kavas, B.; Şendur, Polat (International Center for Numerical Methods in Engineering, 2019)

  Triply periodic minimal surface (TPMS) based geometries exhibit extraordinary mechanical, thermal, electrical and acoustic properties thanks to their unique topologies. There are various types of structures in the TPMS ...

• Critical review of the parameters affecting the effectiveness of moisture absorption treatments used for natural composites 

  Al-Maharma, Ahmad Yousef Mohammad; Al-Huniti, N. (MDPI AG,, 2019)

  Natural composites can be fabricated through reinforcing either synthetic or bio-based polymers with hydrophilic natural fibers. Ultimate moisture absorption resistance at the fiber–matrix interface can be achieved when ...

• Depression screening from voice samples of patients affected by parkinson’s disease 

  Özkanca, Yasin Serdar; Öztürk, M. G.; Ekmekci, Merve Nur; Atkins, D. C.; Demiroğlu, Cenk; Ghomi, R. H. (S. Karger AG, 2019-05-01)

  Depression is a common mental health problem leading to significant disability worldwide. It is not only common but also commonly co-occurs with other mental and neurological illnesses. Parkinson's disease (PD) gives rise ...

• Uncertainty-aware deep classifiers using generative models 

  Şensoy, Murat; Kaplan, L.; Cerutti, F.; Saleki, Maryam (Association for the Advancement of Artificial Intelligence, 2020)

  Deep neural networks are often ignorant about what they do not know and overconfident when they make uninformed predictions. Some recent approaches quantify classification uncertainty directly by training the model to ...

• A benchmark for inpainting of clothing images with irregular holes 

  Kınlı, Osman Furkan; Özcan, Barış; Kıraç, Mustafa Furkan (Springer, 2020)

  Fashion image understanding is an active research field with a large number of practical applications for the industry. Despite its practical impacts on intelligent fashion analysis systems, clothing image inpainting has ...

• Two-part bio-based self-healing repair agent for cement-based mortar 

  Tezer, Mustafa Mert; Bundur, Zeynep Başaran (International Center for Numerical Methods in Engineering, 2020)

  Factors affecting durability of concrete structures are generally associated with each other. Due to its brittle nature, concrete can crack under stress and these cracks are one of the main reasons for a decrease in service ...

• A decomposition-based heuristic for a waste cooking oil collection problem 

  Gültekin, Ceren; Ölmez, Ömer Berk; Koyuncu, Burcu Balçık; Ekici, Ali; Özener, Okan Örsan (Springer, 2020-01-01)

  Every year, a tremendous amount of waste cooking oil (WCO) is produced by households and commercial organizations, which poses a serious threat to the environment if disposed improperly. While businesses such as hotels and ...

• Photon statistics effects on a QRNG of vacuum fluctuations 

  Dandaşi, Abdulrahman; Özel, Helin; Durak, Kadir (Optica Publishing Group, 2020-09-14)

  Optical scattering enhances randomness characteristics, increases the chaotic behavior of coherent sources, broadens the distribution of photon statistics and makes it super-Poissonian which allows faster sampling compared ...

• Down-conversion emission profile characterisation via camera 

  Kuniyil, Hashir Puthiyapurayil; Durak, Kadir (Optica Publishing Group, 2020-12-14)

  We present a method to improve the brightness and collection efficiency of the spontaneous parametric down-conversion source by monitoring the mode shape using camera and correcting it with collection optics.

• Centrality and scalability analysis on distributed graph of large-scale e-mail dataset for digital forensics 

  Ozcan, S.; Astekin, Merve; Shashidhar, N. K.; Zhou, B. (IEEE, 2020-12-10)

  Today's digital forensics software tools mostly do not offer automatic analysis methods to reveal evidences among huge amounts of digital files within hard disk images. It is important that finding evidence in digital and ...

• The effect of interface gradient distribution on unrealistic flow in 3D droplet simulations 

  Yılmaz, Anıl; Kayansalçik, Gökhan; Ertunç, Özgür (Europe, Institute for Liquid Atomization and Spray Systems, ILASS, 2021-08-31)

  The purpose of this study is to investigate the origin of the parasitic current to provide accurate prediction of droplet surface interactions in Volume of Fluid (VOF) framework. The deformation of the droplet due to ...

• Validation and comparison of 2D and 3D numerical simulations of flow in simplex nozzles 

  Bal, M.; Kayansalçik, Gökhan; Ertunç, Özgür; Böke, Y. E. (Europe, Institute for Liquid Atomization and Spray Systems, ILASS, 2021-08-31)

  Numerical simulations of pressure swirl atomizers are computationally expensive due to transient and multiphase flow behavior. In this study, 2D and 3D VOF simulations are performed for a geomerty which has high swirl ...

• Design and development of a torsion-based series elastic actuator with nested encoders for a wearable exoskeleton robot 

  Kuru, Alihan; Uğurlu, Regaip Barkan; Bebek, Özkan (IEEE, 2022)

  This paper presents the design of a high torque-to-mass ratio series elastic actuator (SEA) for wearable powered exoskeletons. Nonbackdrivable actuators are ideal for applications that require high torque. Commonly, active ...

• Topology optimization-based design and development of a compact actuator with a high torque-to-weight ratio for quadrupeds 

  Akın, Barış; Özçınar, Erim Can; Balcı, Barış; Emre, Sinan; Şendur, Polat; Bebek, Özkan; Ünal, Ramazan; Uğurlu, Regaip Barkan (IEEE, 2022)

  This paper presents the design, development, and testing procedures for a compact actuator with a high torque-to-weight ratio, generally aimed to actuate legged robots, e.g., quadrupeds. The main goal of designing the ...

View more