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7th IEEE Ecuador Technical Chapters Meeting, ECTM 2023

作者： Erazo, Andres Allauca, Luis Guerra, Gabriel Ko, Seok-Bum University of Saskatchewan Division of Biomedical Engineering SaskatoonSK Canada Aasc-Tronix Department of Investigation Quito Ecuador Universidad de Salamanca Science Faculty Salamanca Spain University of Saskatchewan Department of Electrical and Computer Engineering Division of Biomedical Engineering SaskatoonSK Canada

ISBN: (纸本)9798350338232

We present the design and implementation of an automated device for viruses and bacterial disinfection for use in market products. This document includes the design considerations of our innovative solutions and its proof-of-concept testing to ensure its desired operation. Results of an experimental study, conducted with regular and irregular objects, were utilized to ascertain the optimal positioning of the UV lamps within the disinfection chamber. Likewise, the light incidence in the object was validated by these same tests. Collectively, our findings underscore that our device is adept at effectively disinfecting market products, offering a robust and dependable operational capacity. The disinfection process takes 10 seconds per product, achieving a log-reduction dose. © 2023 IEEE.

关键词： Disinfection

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Signal Quality Analysis of Microwave Photonic Filtering for 6G Communications 15

Signal Quality Analysis of Microwave Photonic Filtering for ...

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15th International Conference on Information and Communication Technology Convergence, ICTC 2024

作者： Kim, Jaeseong Song, Minje Jung, Youngjin Choi, Hyunjong Song, Minhyup Electronics and Telecommunications Research Institute Photonic/Wireless Devices Research Division Daejeon Korea Republic of School of electrical engineering Korea university Seoul Korea Republic of Korea university Department of Computer Science and Engineering Seoul Korea Republic of

ISBN: (纸本)9798350364637

We have demonstrated that a 1.5 Gbps signal can be transmitted through a microwave photonic filter (MWPF) in the 24 GHz band, which belongs to the FR3 (Frequency Range 3) upper mid band (7-24 GHz), a range gaining attention for 6G communication. The MWPF was implemented with a free spectral range (FSR) of 12.3 GHz, a center frequency of 24.67 GHz, and a 3dB bandwidth of 2.24 GHz. In the signal quality test, The PRBS (Pseudo-Random Binary Sequence) signals with data rates of 500 Mbps, 1 Gbps, and 1.5 Gbps that passed through the MWPF were received by the BERT (Bit Error Ratio Tester), and the eye diagrams were successfully checked for each. This results successfully demonstrated the potential application of MWPFs in future 6G communications. Taking advantage of the programmable nature of MWPF, we plan to conduct additional signal quality tests in other 6G frequency bands. In future work, by utilizing the coherence properties of the optical frequency comb (OFC), we aim to achieve significant data rates, further proving that MWPFs are suitable devices for 6G communication. © 2024 IEEE.

关键词： Microwave photonics

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Acceptor-Induced Bulk Dielectric Loss in Superconducting Circuits on Silicon

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Physical Review X 2024年第4期14卷 041022页

作者： Zi-Huai Zhang Kadircan Godeneli Justin He Mutasem Odeh Haoxin Zhou Srujan Meesala Alp Sipahigil Department of Electrical Engineering and Computer Sciences Materials Sciences Division Department of Physics Institute for Quantum Information and Matter

The performance of superconducting quantum circuits is primarily limited by dielectric loss due to interactions with two-level systems (TLSs). State-of-the-art circuits with engineered material interfaces are approaching a limit where dielectric loss from bulk substrates plays an important role. However, a microscopic understanding of dielectric loss in crystalline substrates is still lacking. In this work, we show that boron acceptors in silicon constitute a TLS bath that leads to an energy dissipation channel for superconducting circuits. We discuss how the electronic structure of boron acceptors leads to an effective TLS response in silicon. We sweep the boron concentration in silicon and demonstrate the bulk dielectric loss limit from boron acceptors. We show that boron-induced dielectric loss can be reduced in a magnetic field due to the spin-orbit structure of boron. This work provides the first detailed microscopic description of a TLS bath for superconducting circuits and demonstrates the need for ultrahigh-purity substrates for next-generation superconducting quantum processors.

关键词： Quantum engineering Superconducting devices

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Reality Capture Technologies for Automated Quality Control during Construction 3D Printing

Reality Capture Technologies for Automated Quality Control d...

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ASCE International Conference on Computing in Civil engineering 2023: Data, Sensing, and Analytics, i3CE 2023

作者： Martin, Michael Banijamali, Kasra Kazemian, Ali Division of Electrical and Computer Engineering Louisiana State Univ Baton RougeLA United States Bert S. Turner Dept. of Construction Management Louisiana State Univ Baton RougeLA United States Bert S. Turner Dept. of Construction Management and Division of Electrical and Computer Engineering Louisiana State Univ Baton RougeLA United States

ISBN: (数字)9780784485224

ISBN: (纸本)9780784485224

A low-cost 2D LiDAR sensor and a near real-Time data processing algorithm are used in this study to capture the as-built geometry of the freshly printed layers for inline and automated inspection. The accuracy of the proposed system is evaluated under different conditions and layer dimensions. Based on the obtained results, significant improvements were observed after a statistical approach was used for outlier detection and elimination. Maximum error values of less than 1.1 mm were achieved for inline layer width and height measurements using the proposed approach. © International Conference on Computing in Civil engineering *** rights reserved.

关键词： Quality control

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Unpredictable Switching for Cyber-Physical Security Against Worst-case Attackers 63

Unpredictable Switching for Cyber-Physical Security Against ...

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63rd IEEE Conference on Decision and Control, CDC 2024

作者： Kanellopoulos, Aris Fotiadis, Filippos Vamvoudakis, Kyriakos G. Sandberg, Henrik Kth Royal Institute of Technology Division of Decision and Control Systems School of Electrical Engineering and Computer Science Stockholm10044 Sweden Georgia Institute of Technology Daniel Guggenheim School of Aerospace Engineering AtlantaGA30332 United States

ISBN: (纸本)9798350316339

In this paper, we investigate the problem of securing a system against actuator attacks. Specifically, we employ an unpredictability-based defense algorithm according to the principles of Moving Target Defense, while explicitly considering the worst-case attack that can be launched into the system. Consequently, we allow the system to alternate between different actuating modes, but also between optimal and robust control schemes. Via game-theoretic methods, we derive mixed strategies dictating the probabilities of utilizing different controllers for a given mode of operation, whereas an entropy-augmented optimization problem gives the probabilities of using these different modes. Finally, the overall stability of the system is analyzed, and simulation results showcase the efficacy of our proposed method. © 2024 IEEE.

关键词： Cyber attacks

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Reinforcement Learning-based Receding Horizon Control using Adaptive Control Barrier Functions for Safety-Critical Systems*

Reinforcement Learning-based Receding Horizon Control using ...

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IEEE Conference on Decision and Control

作者： Ehsan Sabouni H.M. Sabbir Ahmad Vittorio Giammarino Christos G. Cassandras Ioannis Ch. Paschalidis Wenchao Li Division of Systems Engineering Boston University Boston MA USA Department of Electrical and Computer Engineering and the Division of Systems Engineering Boston University Boston MA USA Department of Electrical and Computer Engineering Division of Systems Engineering and Department of Biomedical Engineering Boston University Boston MA USA

ISBN: (数字)9798350316339

ISBN: (纸本)9798350316346

Optimal control methods provide solutions to safety-critical problems but easily become intractable. Control Barrier Functions (CBFs) have emerged as a popular technique that facilitates their solution by provably guaranteeing safety, through their forward invariance property, at the expense of some performance loss. This approach involves defining a performance objective alongside CBF-based safety constraints that must always be enforced with both performance and solution feasibility significantly impacted by two key factors: (i) the selection of the cost function and associated parameters, and (ii) the calibration of parameters within the CBF-based constraints, which capture the trade-off between performance and conservativeness. To address these challenges, we propose a Reinforcement Learning (RL)-based Receding Horizon Control (RHC) approach leveraging Model Predictive Control (MPC) with CBFs (MPC-CBF). In particular, we parameterize our controller and use bilevel optimization, where RL is used to learn the optimal parameters while MPC computes the optimal control input. We validate our method by applying it to the challenging automated merging control problem for Connected and Automated Vehicles (CAVs) at conflicting roadways. Results demonstrate improved performance and a significant reduction in the number of infeasible cases compared to traditional heuristic approaches used for tuning CBF-based controllers, showcasing the effectiveness of the proposed method. In order to guarantee reproducibility, our code is provided here: link 1 . 1 ***/EhsanSabouni/CDC2024_RL_adpative_MPC_CBF/tree/main

关键词： Roads System performance Merging Optimal control Reinforcement learning Cost function Reproducibility of results Safety Tuning Predictive control

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Ultra-Narrow-Linewidth Hybrid-Integrated Self-Injection Locked Laser at 780 nm

Ultra-Narrow-Linewidth Hybrid-Integrated Self-Injection Lock...

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2024 IEEE Photonics Conference, IPC 2024

作者： Prokoshin, Artem Gehl, Michael Madaras, Scott E. Chow, Weng W. Wan, Yating Computer Electrical and Mathematical Sciences and Engineering Division Thuwal23955-6900 Saudi Arabia Sandia National Laboratories Photonic and Phononic Microsystems AlbuquerqueNM87185 United States

We demonstrate a hybrid-integrated self-injection locked laser operating at 780 nm with a linewidth of 103.8 Hz, and theoretically study the possibility of achieving Hz-level linewidth with this setup. © 2024 IEEE.

ISBN: (纸本)9798350361957

关键词： Linewidth

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Recent advances on quasi-solid-state electrolytes for supercapacitors

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Journal of Energy Chemistry 2022年第4期31卷 697-717页

作者： Murilo M.Amaral Raissa Venâncio Alfredo C.Peterlevitz Hudson Zanin Advanced Energy Storage Division Center for Innovation on New EnergiesCarbon Sci-Tech Labs and Manufacturing GroupSchool of Electrical and Computer EngineeringUniversity of CampinasCampinasSP 13083-852Brazil

Solid-state and quasi-solid-state electrolytes have been attracting the scientific community’s attention in the last decade. These electrolytes provide significant advantages, such as the absence of leakage and separators for devices and safety for users. They also allow the assembly of stretchable and bendable supercapacitors. Comparing solid-state to quasi-solid-states, the last provides the most significant energy and power densities due to the better ionic conductivity. Our goal here is to present recent advances on quasisolid-state electrolytes, including gel-polymer electrolytes. We reviewed the most recent literature on quasi-solid-state electrolytes with different solvents for supercapacitors. Organic quasi-solid-state electrolytes need greater attention once they reach an excellent working voltage window greater than 2.5 ***, aqueous-based solid-state electrolytes have a restricted voltage window to less than 2 V. On the other hand, they are easier to handle, provide greater ionic conductivity and capacitance. Recent water-in-salt polymer-electrolytes have shown stability as great as 2 V encouraging further development in aqueous-based quasi-solid-state electrolytes. Moreover, hydrophilic conductive polymers have great commercial appeal for bendable devices. Thus, these electrolytes can be employed in flexible and bendable devices, favoring the improvement of portable electronics and wearable devices(376 references were evaluated and summarized here).

关键词： Quasi-solid-state electrolyte Gel-polymer electrolyte Flexible supercapacitor Wearables

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Behind Closed Doors: Process-Level Rootkit Attacks in Cyber-Physical Microgrid Systems

Behind Closed Doors: Process-Level Rootkit Attacks in Cyber-...

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2022 IEEE Power and Energy Society General Meeting, PESGM 2022

作者： Rath, Suman Zografopoulos, Ioannis Vergara, Pedro P. Nikolaidis, Vassilis C. Konstantinou, Charalambos School of Electrical & Computer Engineering Oklahoma State University United States Cemse Division Saudi Arabia Netherlands Democritus University of Thrace Dept. of Electrical and Computer Engineering Greece

ISBN: (数字)9781665408233

ISBN: (纸本)9781665408233

Embedded controllers, sensors, actuators, advanced metering infrastructure, etc. are cornerstone components of cyber-physical energy systems such as microgrids (MGs). Harnessing their monitoring and control functionalities, sophisticated schemes enhancing MG stability can be deployed. However, the deployment of 'smart' assets increases the threat surface. Power systems possess mechanisms capable of detecting abnormal operations. Furthermore, the lack of sophistication in attack strategies can render them detectable since they blindly violate power system semantics. On the other hand, the recent increase of process-aware rootkits that can attain persistence and compromise operations in undetectable ways requires special attention. In this work, we investigate the steps followed by stealthy rootkits at the process level of control systems pre- and post-compromise. We investigate the rootkits' precompromise stage involving the deployment to multiple system locations and aggregation of system-specific information to build a neural network-based virtual data-driven model (VDDM) of the system. Then, during the weaponization phase, we demonstrate how the VDDM measurement predictions are paramount, first to orchestrate crippling attacks from multiple system standpoints, maximizing the impact, and second, impede detection blinding system operator situational awareness. © 2022 IEEE.

关键词： Semantics

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Federated Learning-Based Resilient Control of Shipboard Power System

Federated Learning-Based Resilient Control of Shipboard Powe...

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2024 IEEE International Conference on Green Energy and Smart Systems, GESS 2024

作者： Base, Anway Amato, Joseph Bai, Li Temple University Department of Electrical and Computer Engineering PhiladelphiaPA19122 United States Naval Surface Warfare Center Philadelphia Division PhiladelphiaPA19112 United States

ISBN: (纸本)9798350379617

Shipboard power systems are analyzed and controlled using methods similar to those of terrestrial microgrids. One major difference between shipboard and terrestrial grids is that shipboard power system components are closely located to one another, relative to a more widely dispersed land-based system, and control systems leverage tightly coupled communication links as a benefit [1]. To mitigate the adverse effects of communication failures, Naval control systems are designed for redundancy and reliability, and various methods for isolating generation groups and power buses are implemented in the event of a communications disruption. However, isolated generator operations, even short-term, can limit the ship's capability to meet load demands and have significant operational impacts. In this paper, we propose a federated learning approach to implement decentralized load prediction and demonstrate that the results exhibit robustness in the presence of noise. The federated learning method for load prediction is a step toward designing more resilient Naval shipboard power system controls. © 2024 IEEE.

关键词： Federated Load Prediction Federated Nested Regression Federated XGBoost Resilient Control

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