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Isotropic gap formation, localization, and waveguiding in mesoscale Yukawa-potential amorphous structures Sarihan, Murat Can; Gövdeli, Alperen; Lan, Zhihao; Yilmaz, Yildirim Batuhan; Erdil, Mertcan; Wang, Yupei; Aras, Mehmet Sirin; Yanik, Cenk; Panoiu, Nicolae Coriolan; Wong, Chee Wei; Kocaman, Serdar (2024-12-01) Amorphous photonic structures are mesoscopic optical structures described by electrical permittivity distributions with underlying spatial randomness. They offer a unique platform for studying a broad set of electromagneti...
A 4096 channel event-based multielectrode array with asynchronous outputs compatible with neuromorphic processors Cartiglia, Matteo; Costa, Filippo; Narayanan, Shyam; Bui, Cat-Vu H.; Uluşan, Hasan; Risi, Nicoletta; Haessig, Germain; Hierlemann, Andreas; Cardes, Fernando; Indiveri, Giacomo (2024-12-01) Bio-signal sensing is pivotal in medical bioelectronics. Traditional methods focus on high sampling rates, leading to large amounts of irrelevant data and high energy consumption. We introduce a self-clocked microelectrode...
A full-custom fully implantable cochlear implant system validated in vivo with an animal model Uluşan, Hasan; Yüksel, Muhammed Berat; TOPÇU, OKAN; Yiğit, H. Andaç; Yılmaz, Ali Özgür; Doğan, Mert; Gülhan Yasar, Nagihan; Kuyumcu, İbrahim; Batu, Aykan; Göksu, Nebil; Uğur, M. Birol; Külah, Haluk (2024-12-01) Realizations of fully implantable cochlear implants (FICIs) for providing adequate solution to esthetic concerns and frequent battery replacement have lacked of addressing system level criteria as a complete device. Here, ...
Graph domain adaptation with localized graph signal representations Pilavcı, Yusuf Yiğit; Güneyi, Eylem Tuğçe; Cengiz, Cemil; Vural, Elif (2024-11-01) In this paper we propose a domain adaptation algorithm designed for graph domains. Given a source graph with many labeled nodes and a target graph with few or no labeled nodes, we aim to estimate the target labels by makin...
Transmit beampattern design for FDA-MIMO radar using complex manifold optimization Özen, Berkcan; Tuncer, Temel Engin (2024-11-01) Frequency diverse array multiple-input multiple-output (FDA-MIMO) radar can produce time-stationary range-angle dependent beampattern. The problem with these beampatterns is the repeating lobes in the angle-range domain. D...
Computation of tight bounds for the worst-case end-to-end delay on Avionics Full-Duplex Switched Ethernet Ayhan Kilinc, Zeynep; Schmidt, Şenan Ece; Schmidt, Klaus Verner (2024-11-01) Avionics Full-Duplex Switched Ethernet (AFDX) is a fault-tolerant real-time communication bus for safety–critical applications in aircraft. AFDX configures communication channels, denoted as virtual links (VLs), ensuring b...
Feedback motion planning via sequential composition of random elliptical funnels Durmaz, Atakan; Ozdemir, Oguz; Ankaralı, Mustafa Mert (2024-10-15) This paper presents a novel feedback motion planning and control framework tailored for unmanned surface vehicles (USVs), validated through experiments on a physical USV platform. The framework utilizes sparse random neigh...
Evaluation of five methods for the interpolation of bad leads in the solution of the inverse electrocardiography problem Serinağaoğlu Doğrusöz, Yeşim; Bear, L.R.; Bergquist, J.A.; Rababah, A.S.; Good, W.; Stoks, J.; Svehlikova, J.; van Dam, E.; Brooks, D.H.; MacLeod, R.S. (2024-09-24) Objective.This study aims to assess the sensitivity of epicardial potential-based electrocardiographic imaging (ECGI) to the removal or interpolation of bad leads.Approach.We utilized experimental data from two distinct ce...
Early prediction of battery remaining useful life using CNN-XGBoost model and Coati optimization algorithm Safavi, Vahid; Mohammadi Vaniar, Arash; Bazmohammadi, Najmeh; Vasquez, Juan C.; Keysan, Ozan; Guerrero, Josep M. (2024-09-20) Lithium-ion (Li-ion) batteries are essential for modern power systems but suffer from performance degradation over time. Accurate prediction of the remaining useful life (RUL) of these batteries is critical for ensuring th...
Improved brain effective connectivity modelling by dynamic Bayesian networks Ulusoy, İlkay; Geduk, Salih (2024-09-01) Background: If brain effective connectivity network modelling (ECN) could be accurately achieved, early diagnosis of neurodegenerative diseases would be possible. It has been observed in the literature that Dynamic Bayesia...
Rapid fabrication approach for active photonic devices by employing spin-on dopants Şahin, Alper; Akdeniz, Onur; Kocaman, Serdar (2024-08-01) Modulation based on the plasma dispersion effect can be achieved by controlling free carriers in the optical region with the aid of pn junction diodes. The embedded diodes are commonly realized with ion implantation, which...
Wafer Level Vacuum Packaging of MEMS-Based Uncooled Infrared Sensors Demirhan Aydin, Gulsah; Akar, Orhan Sevket; Akın, Tayfun (2024-08-01) This paper introduces a cost-effective, high-performance approach to achieving wafer level vacuum packaging (WLVP) for MEMS-based uncooled infrared sensors. Reliable and hermetic packages for MEMS devices are achieved usin...
Tailoring Quantum Dot Shell Thickness and Polyethylenimine Interlayers for Optimization of Inverted Quantum Dot Light-Emitting Diodes Yazici, Ahmet F.; Ocal, Sema Karabel; Biçer, Ayşenur; Serin, Ramis B.; Kacar, Rifat; Ucar, Esin; Ulku, Alper; Erdem, Talha; Mutlugun, Evren (2024-07-01) Quantum dot light-emitting diodes (QLEDs) hold great promise for next-generation display applications owing to their exceptional optical properties and versatile tunability. In this study, we investigate the effects of qua...
WLAV state estimation based topology error detection and identification in distribution networks with limited number of measurements Parlaktuna, Kemal; Dursun, Erk; Göl, Murat (2024-07-01) Rapidly populating renewable energy sources and storage units at the distribution system, made it crucial to monitor the system in real-time. This necessity brings new challenges and business opportunities for the distribu...
Non-invasive real-time diagnosis of PMSM faults implemented in motor control software for mission critical applications Demirel, Aykut; Keysan, Ozan; El-Dalahmeh, Ma'd; Al-Greer, Maher (2024-06-15) The machine's health should be continuously monitored, or a test should be applied on a regular basis to predict failure before fatal damage is incurred. Unexpected failures, particularly in mission-critical applications, ...
Multichannel multimodal piezoelectric middle ear implant concept based on MEMS technology for next-generation fully implantable cochlear implant applications Pirim, Feyza; Atik, Ali Can; Yüksel, Muhammed Berat; Yılmaz, Akın Mert; UĞUR, MEHMET BİROL; Tunalı, Selçuk; BATU, AYKAN; Aslan, Mahmut Kamil; Özer, Mehmet Bülent; Külah, Haluk (2024-06-01) This paper introduces a unique multimode, multichannel piezoelectric vibration sensor for the next-generation fully implantable cochlear implant (FICI) systems. The sensor, which can be implanted on the middle ear chain to...
LONG-TERM WIND POWER AND GLOBAL WARMING PREDICTION USING MARS, ANN, CART, LR, AND RF Yılmaz, Yavuz; Nalçacı, Gamze; Kańczurzewska, Marta; Weber, Gerhard Wilhelm (2024-06-01) The modeling of electricity generation plays a crucial role in investment and long-term planning in power systems, primarily due to the significant volatility associated with wind and solar energy sources. Nevertheless, fo...
Identification of the Linear Systems of the Wiener Hammerstein RF Power Amplifier Model Using DFT Analysis Yesil, Soner; Yılmaz, Ali Özgür (2024-06-01) This paper presents a novel method for identification of the sub-system parameters of a Wiener-Hammerstein Nonlinear (WHNL) system that is used for modeling RF Power Amplifier characteristics. The proposed method first iso...
Pre-enrichment-free detection of hepatocellular carcinoma-specific ctDNA via PDMS and MEMS-based microfluidic sensor Çağlayan Arslan, Zeynep; Okan, Meltem; Külah, Haluk (2024-05-01) The growing interest in microfluidic biosensors has led to improvements in the analytical performance of various sensing mechanisms. Although various sensors can be integrated with microfluidics, electrochemical ones have ...
OMNeT++ Simulation Framework for Avionics Full-Duplex Switched Ethernet Gökçe, İ. Peşkircioğlu; Üçüncü, M.; Schmidt, Şenan Ece (2024-05-01) Avionics Full-Duplex Switched Ethernet (AFDX) is a popular network technology for integrated modular avionics (IMA). When designing an AFDX network, it is important to fulfill the real-time communication requirements of av...

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