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IEEE Conference on Electromagnetic Field Computation

作者： Charles T.M. Choi Chun Ting Ke Jelani Lawrence Alexander C. C. Wang Department of Electronics and Electrical Engineering College of Electrical & Computer Engineering National Yang Ming Chiao Tung University Hsinchu Taiwan Institute of Electrical and Control Engineering College of Electrical & Computer Engineering National Yang Ming Chiao Tung University Hsinchu Taiwan Institute of Biomedical Engineering College of Electrical & Computer Engineering National Yang Ming Chiao Tung University Hsinchu Taiwan Electrical Engineering & Computer Science International Graduate Program College of Electrical & Computer Engineering National Yang Ming Chiao Tung University Hsinchu Taiwan

ISBN: (数字)9798350348958

ISBN: (纸本)9798350348965

The electrically evoked compound action potential (ECAP) has been used in various clinical studies and has become a key physiological signal for cochlear implants (CI). This study used four sensing electrodes to record ECAP signals based on the alternating polarity approach. An electrical field imaging (EFI) result based on the finite element method was used to obtain the interface impedance, then ECAP simulation results were computed and compared with a patient's clinical ECAP measurements. Preliminary modeling results show that the interface impedance obtained by this EFI-based technique can improve the simulation accuracy of the ECAP model. The ECAP modeling result will be compared with clinical ECAP measurements to validate the model in the full paper.

关键词： Electrodes Action potentials Impedance measurement Computational modeling Simulation Imaging Finite element analysis

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The effect of anti-solvent containing organofluorine molecules on the characteristics of charge carriers transport and extraction in MAPbI3 based perovskite solar cells

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Applied Physics A 2025年第7期131卷 1-18页

作者： Nurunnizar, Adhita Asma Alifvian, Mohammad Fadli Syarif, Nur Fadhilah Bahar, Herman Hidayat, Rahmat Shobih, Shobih Nursam, Natalita Maulani Kubo, Hitoshi Fujii, Akihiko Ozaki, Masanori Physics of Magnetism and Photonics Research Division Physics Program Study Faculty of Mathematics and Natural Sciences Bandung Institute of Technology Bandung Indonesia Research Center for Electronics National Research and Innovation Agency (BRIN) KST Samaun Samadikun Jl. Sangkuriang Bandung Indonesia Department of Electrical Electronics and Information Engineering Faculty of Engineering Osaka University Suita Japan Department of Electrical and Electronic Systems Engineering Osaka Institute of Technology Osaka Japan

Introducing passivation molecules has been being considered as one of effective strategies to reduce surface crystal defects and hence improve the performance and stability of perovskite solar cells (PSCs). In this paper, we report the effects of organofluorine molecules, specifically trifluoroacetic acid (TFA), added in the ethyl acetate (EA) anti-solvent on the characteristics of MAPbI3 based PSCs, which are related to interfacial surface states, band bending characteristics and charge extraction processes. Anti-solvents with several volume fractions of TFA were used in the perovskite layer deposition step by the spin-coating technique. The current density vs. voltage (J–V) curve hysteresis was suppressed while the PSC stability and the PSC performance repeatability of the fabrication results were much improved in PSC prepared using EA anti-solvent with moderate volume fraction of TFA (i.e. 5% v/v). These PSC samples were also characterized by measurements of impedance photovoltaic spectroscopy (IMVS) and transient photovoltaic (TPV). By performing TPV measurements at various dc light biases, an unusual delayed TPV decay component with a long rise part was observed, especially at PSCs prepared with moderate volume fractions of TFA in EA anti-solvent. The infra-red (FTIR) spectroscopy and X-ray Photoemission Spectroscopy (XPS) data showed that TFA removed uncoordinated or weakly bonded MA+ cations and I− anions at the NCs surface but leaving the accumulation of Pb2+ cations on the surface. This condition causes the formation of surface states leading to a downward band bending at the MAPbI3/HTL interface, which is responsible to the observation this delayed TPV decay component. However, this situation improves the PSC performance by minimizing the effect from mobile ion migration. These present measurement results thus clearly&

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Quantitative Analysis of Ankle Spasticity Through Electromyography Signal

Quantitative Analysis of Ankle Spasticity Through Electromyo...

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Medical Technologies National Conference (TIPTEKNO)

作者： Ayse Gurluk Hafiz Muhammad Bilal Elif Hocaoglu Living Robotics Laboratory Graduate School of Health Sciences Physiotherapy and Rehabilitation Program Istanbul Medipol University Istanbul Türkiye Living Robotics Laboratory Graduate School of Engineering and Natural Sciences Electrical-Electronics Engineering and Cyber-Systems Program Istanbul Medipol University Istanbul Türkiye Department of Electrical and Electronics Engineering Living Robotics Laboratory Istanbul Medipol University Istanbul Türkiye

ISBN: (数字)9798331529819

ISBN: (纸本)9798331529826

This study presents a more accurate evaluation method for assessing ankle spasticity compared to conventional goniometric techniques by utilizing measurements obtained from Inertial Measurement Units (IMU) and surface electromyography (sEMG) devices. Integrating IMU and EMG sensors provides substantial benefits for accurately determining the range of motion (ROM) associated with spasticity during targeted movements. In this study, the proposed method provides precise measurement and an objective evaluation of onset time detection of antagonistic muscle co-contraction, and accordingly the ROM of the actuated joint. Moreover, the implementation of cost-effective wearable sensors enables the monitoring of muscle spasticity in clinical environments and can be particularly valuable in regions with limited access to experienced therapists, providing a more efficient approach to tracking spasticity levels.

关键词： Ankle Measurement units Inertial navigation Muscles Electromyography Sensors Reliability Motion control Read only memory Monitoring

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Design of Motorcycle Speed Limiter through Global Positioning System 13

Design of Motorcycle Speed Limiter through Global Positionin...

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2021 IEEE 13th International Conference on Humanoid, Nanotechnology, Information Technology, Communication and Control, Environment, and Management, HNICEM 2021

作者： Bajenting, Edmund B. Ompoc, Ralph Eimerson B. Palmero, Reynaldo G. Adtoon, Jetron J. Linsangan, Noel B. University of Mindanao Computer Engineering Program College of Engineering Education Davao Philippines Mapua University School of Electrical Electronics and Computer Engineering Manila Philippines

ISBN: (纸本)9781665401678

This study focused on designing a motorcycle speed limiter using GPS with throttle modification. The study was brought about the increase in road accidents involving motorcycle vehicles tagged to be overspeeding and some not wearing helmets. The designed system focused on controlling the throttle of the motorcycle through a microcontroller and a GPS. Also, communication from the helmet to the motorcycle was established to complete the system functionality. The system does not allow the use of the said motorcycle once the rider does not wear the helmet prescribed for the said motorcycle. Speed control of the designed system relies solely upon the GPS, making it different from typical sensory for speed and PID algorithm applied in servo motor to control the throttle acceleration. The selected road stretch was assigned 30 kph,40kph, and 60 kph, respectively. Initial tests showed a responsive rate of all parameters of the helmet and LCD design. © 2021 IEEE.

关键词： Microcontrollers

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The design and evaluation of an AR-based serious game to teach programming

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Computers and Graphics (Pergamon) 2022年 103卷 1-18页

作者： Sharma, Vandit Bhagat, Kaushal Kumar Huang, Huai-Hsuan Chen, Nian-Shing Department of Electronics and Electrical Communication Engineering Indian Institute of Technology Kharagpur Kharagpur721302 India Advanced Technology Development Centre Indian Institute of Technology Kharagpur Kharagpur721302 India Institute for Research Excellence in Learning Sciences Program of Learning Sciences National Taiwan Normal University Taiwan

The ubiquity of smartphone and tablet devices, combined with the increasing availability of serious games, has enabled students to learn various abstract concepts in an appealing and convenient manner. While several researchers have explored the use of Augmented Reality (AR) in serious games, many of these games have not been critically explained or evaluated. To that end, we employed game-based learning methodologies and Game Learning Analytics (GLA) to systematize the design and evaluation of an AR-based serious game to teach programming. We evaluated our game for usability and effectiveness by conducting a user study on twenty-seven undergraduate students. The evaluation primarily consisted of a learning test conducted twice – before and after playing the game – along with a usability questionnaire that players completed after playing the game. Our results showed that players made significant progress after playing the game. The game helped players improve their basic programming skills, especially for the group having lower prior programming skills. The results highlighted various ways in which GLA can be used to benefit different stakeholders in the game. Based on players’ qualitative responses, we also identified several areas of improvement, most prominently the trade-off between ease of use and game complexity. We provide suggestions and discuss implications for future work. © 2022 Elsevier Ltd

关键词： Serious games

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Designing Classical Header Bits for Quantum Wrapper Networking with O-band Quantum Signal

Designing Classical Header Bits for Quantum Wrapper Networki...

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Frontiers in Optics + Laser Science 2023, FiO, LS 203: Part of Frontiers in Optics + Laser Science 2023

作者： Gül, G. Berkay On, M. Singh, S.K. Proietti, R. Kanter, G.S. Yoo, S.J.B. Kumar, P. Graduate Program in Applied Physics Northwestern University 2145 Sheridan Road EvanstonIL60208 United States Department of Electrical and Computer Engineering University of California Davis DavisCA95616 United States Department of Electronics and Communication Eng. Indian Institute of Technology Roorkee247667 India Department of Electronics and Telecommunications Engineering Politecnico di Torino Italy Center for Photonic Communication and Computing Dept. of Electrical and Computer Eng. Northwestern University EvanstonIL60208 United States

We investigate the impact of wavelength choice for the classical headers in quantum wrapper networking with O-band quantum payload. We show that a C-band header performs substantially better than an O-band header. ... 详细信息

ISBN: (纸本)9781957171296

关键词： Bandpass filters Beam splitters Bit error rate Entanglement distribution Quantum teleportation Raman scattering

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Designing Classical Header Bits for Quantum Wrapper Networking with O-band Quantum Signal

Designing Classical Header Bits for Quantum Wrapper Networki...

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2023 Laser Science, LS 2023

作者： Gül, G. On, M. Berkay Singh, S.K. Proietti, R. Kanter, G.S. Yoo, S.J.B. Kumar, P. Graduate Program in Applied Physics Northwestern University 2145 Sheridan Road EvanstonIL60208 United States Department of Electrical and Computer Engineering University of California Davis DavisCA95616 United States Department of Electronics and Communication Eng. Indian Institute of Technology Roorkee247667 India Department of Electronics and Telecommunications Engineering Politecnico di Torino Italy Center for Photonic Communication and Computing Dept. of Electrical and Computer Eng. Northwestern University EvanstonIL60208 United States

关键词： Quantum electronics

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Noise impact of classical headers on the quantum payload in quantum wrapper networking

Optica Quantum

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Optica Quantum 2025年第3期3卷 303-311页

作者： Gamze Gül Gregory S Kanter Shannon G Tan Mehmet Berkay On Roberto Proietti S J Ben Yoo Prem Kumar Graduate Program in Applied Physics Northwestern University Evanston Illinois 60208 USA Center for Photonic Communication and Computing Department of Electrical and Computer Engineering Northwestern University Evanston Illinois 60208 USA Department of Electrical and Computer Engineering University of California Davis Davis California 95616 USA Department of Electronics and Telecommunications Engineering Politecnico di Torino Italy kumarp@northwestern.edu

The fundamental properties of quantum mechanics, such as the no-cloning theorem, make management and control of quantum networks challenging. Quantum wrapper networking (QWN) offers a solution to this problem by wrapping quantum payloads with classical bits (as headers and/or tails) that can be used to assist with networking, performance monitoring, and probing the properties of the fiber interconnection. Since the classical header and quantum payload travel in the same fiber, one should carefully design the system to mitigate potentially deleterious effects such as noise and cross-talk. In this paper, we identify and characterize the noise induced by the classical headers by in-fiber scattering processes. We study the noise by using a tunable continuous-wave laser to emulate O-band (∼1310 nm) classical headers, which are time- and wavelength-multiplexed with O-band quantum signals. The noise is characterized as a function of the headers’ power, classical-quantum wavelength detuning, and optical fiber length. We demonstrate that the dominant noise contribution originates from spontaneous Raman scattering for wavelength detunings that are larger than 3 nm. We also observe that some noise photons can bleed into the quantum payload due to Rayleigh scattering of backward Raman scattered photons. We further investigate system level impacts of the noise created by classical headers that are produced by employing a small form-factor pluggable transceiver. We demonstrate that the associated noise level has negligible impact on quantum payloads for a 47.8 km deployed fiber link, the longest length used in QWN experiments to date, achieving a coincidences-to-accidentals ratio of 56 and a two-photon interference visibility of 88.8%.

关键词： Quantum computation Quantum information Quantum key distribution Raman scattering Systems design Wavelength division multiplexing

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Study on Dual-band Antennas with a Modified Conical Antenna and a Parasitic Helical Element

Study on Dual-band Antennas with a Modified Conical Antenna ...

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2022 IEEE International Workshop on Electromagnetics: Applications and Student Innovation Competition, iWEM 2022

作者： Hirohara, Ryuji Fusazaki, Shinpei Noguchi, Keisuke Kanazawa Institute of Technology Graduate Program in Electrical Engineering and Electronics Ishikawa Nonoichi Japan DOCOMO CS Hokuriku Inc. Management Planning Section Network Management Department Ishikawa Kanazawa Japan

ISBN: (数字)9781665432382

ISBN: (纸本)9781665432382

With the start of the 5G operations, it will become more important to apply communication systems to automo-biles, which has been promoted in recent years as connected cars. Multi-band antennas are required to reduce the in-vehicle space which is occupied by communication equipment. We de-signed dual-band antennas for the sub-6 GHz 5G bands and the intelligent transport systems (ITS) especially the driving safety support system (DSSS) by loading helical elements to modified conical antennas (MCA), and conducted simulations and meas-urements. As a result, the antenna satisfied the sub-6 and ITS DSSS bands in the simulations. There were slightly differences between the calculated and measured results. © 2022 IEEE.

关键词： Intelligent systems

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High Impedance Wire-loop Antennas for Wireless Power Transfer Systems

High Impedance Wire-loop Antennas for Wireless Power Transfe...

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2022 International Symposium on Antennas and Propagation (ISAP)

作者： Hiroto Sakaguchi Keisuke Noguchi Graduate Program in Electrical Engineering and Electronics Nonoichi Ishikawa Japan. Department of Electrical and Electronic Engineering Nonoichi Ishikawa Japan

ISBN: (数字)9781665479622

ISBN: (纸本)9781665479639

Highly efficient rectenna is demanded for wireless power transfer systems. We develop high-impedance wire-loop antennas in order to obtain high rectification efficiency in mm-wave band. We propose magnetic coupling with excited loop and wire so that the wire has role of efficient radiator. In the paper, simulations of a wire-loop antenna on an Alumina substrate are conducted. To get higher impedance and efficiency, we analyze the effects of antenna parameters on the antenna characteristics. Consequently, we designed the antenna with high resistance of 1280.6 $\Omega$ and radiation efficiency of 95.1%.

关键词： Resistance Couplings Rectennas Wires Wireless power transfer Information and communication technology Impedance

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