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12th RSI International Conference on Robotics and Mechatronics, ICRoM 2024

作者： Olyai, Mohammad Alipour, Khalil Tarvirdizadeh, Bahram Sorouri, Majid Ghamari, Mohammad Laboratory Department of Mechatronics Eng. Tehran Iran Maynooth University Department of Electronic Engineering Co. Kildare Maynooth Ireland Science and Research Branch Islamic Azad University Department of Computer and Mechatronics Engineering Tehran Iran California Polytechnic State University Electrical Engineering Department San Luis ObispoCA93407 United States

ISBN: (纸本)9798331529734

Tractor-trailer wheeled robots (TTWRs) have gained significant attention across various industries and control studies due to their complex dynamics and non-minimum phase behavior, which pose substantial control challenges. This study investigates the control of a differentially-driven tractor to follow a specified path under pure rolling conditions in both forward and backward motion. Notably, it has been established that using static feedback linearization (SFL) leads to instability during backward motion. In contrast, this research uses dynamic feedback linearization (DFL), also known as dynamic extension, for controlling the tractor-trailer system in both directions for the first time. Our findings demonstrate that the internal dynamics of the system remain stable in both forward and backward motions, enabling successful adherence to the desired path. © 2024 IEEE.

关键词： Tractors (truck)

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Aerial-ground collaborative routing with time constraints

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Chinese Journal of Aeronautics 2023年第2期36卷 270-283页

作者： Jiahao XING Lichen SU Wenjing HONG Lu TONG Renli LYU Wenbo DU School of Electronics and Information Engineering Beihang UniversityBeijing 100091China School of Future Aerospace Technology/Shen Yuan Honors College Beihang UniversityBejing 100091China School of Automation Science and Electrical Engineering Beihang UniversityBejing 100091China Guangdong Provincial Key Laboratory of Brain-Inspired Intelligent Computation Shenzhen 518055China Department of Computer Science and Engineering Southern University of Science and TechnologyShenzhen 518055China Research Institute of Frontier Science Beihang UniversityBeijing 100083China CAAC Key Laboratory of General Aviation Operation Civil Aviation Management Institute of ChinaBeijing 100102China

The advancement of autonomous technology makes electric-powered drones an excellent choice for flexible logistics services at the last mile delivery *** reach a balance between green transportation and competitive edge,the collaborative routing of drones in the air and trucks on the ground is increasingly invested in the next generation of delivery,where it is particularly reasonable to consider customer time windows and time-dependent travel times as two typical time-related factors in daily *** this paper,we propose the Vehicle Routing Problem with Drones under Time constraints(VRPD-T)and focus on the time constraints involved in realistic scenarios during the delivery.A mixed-integer linear programming model has been developed to minimize the total delivery completion ***,to overcome the limitations of standard solvers in handling large-scale complex issues,a space-time hybrid heuristic-based algorithm has been developed to effectively identify a high-quality *** numerical results produced from randomly generated instances demonstrate the effectiveness of the proposed algorithm.

关键词： Aerial-ground collaborative delivery Mixed-integer programming Space-time hybrid heuristic algorithm Vehicle routing problem with drones Time-dependent travel times

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Application of a Kinetic Model to the Characterization of Donor-Defects in a Fluorinated Metal-Oxide Semiconductor

Application of a Kinetic Model to the Characterization of Do...

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The 2023 International Conference on Display Technology, (ICDT 2023)

作者： Wang, Yuqi Jiang, Wei Xia, Zhihe Wong, Man State Key Laboratory on Advanced Displays and Optoelectronics and Technologies Department of Electronic and Computer Engineering The Hong Kong University of Science and Technology Hong Kong The Hong Kong University of Science and Technology Shenzhen Research Institute Shenzhen518057 China

A recently proposed kinetic model describing the oxidation and reduction of donor-defects in semiconducting metaloxide thin films has been applied to characterize the properties of the donor-defects in fluorinated indium gallium-zinc oxide. The excellent agreement of the measured data with the modelling curves is a nice demonstration of the utility of the model as a useful tool for characterizing the nature of the donor-defects in metal oxide films. © 2023, John Wiley and Sons Inc. All rights reserved.

关键词： Thin film transistors

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AI Driven Approach for Detecting False Data Injection Attacks Targeting Water-Energy Nexus

AI Driven Approach for Detecting False Data Injection Attack...

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Renewable Energy and Hydrogen Technologies (GlobConHT), IEEE IAS Global Conference on

作者： Ahmed Abughali Mohamad Alansari Ameena S. Al-Sumaiti Department of Electrical Engineering and Computer Science Khalifa University Abu Dhabi UAE Department of Electrical Engineering and Computer Science Advanced Power and Energy Center Khalifa University Abu Dhabi UAE

As water and energy grids are highly interconnected, water-energy nexus (WEN) is considered an attractive target for malicious attackers. Attacking WEN affects both systems simultaneously; consequently, the attack is able to create fatal damage in the entire network. In this paper, we propose to tackle this problem using different deep learning models with different loss functions. Additionally, a mixed-integer nonlinear programming (MINLP) WEN in presence of renewable energy sources model is reformulated into a mixed-integer linear programming model for real-time implementation purposes. The optimization model is developed using MATALB, and the deep-learning models are implemented using Python keras framework.

关键词： Deep learning Renewable energy sources Hydrogen Predictive models Programming Transformers Real-time systems

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Active-matrix Addressed High Brightness and Ultra-high PPI Field-Sequential-Color Display based on Deformed Helix Ferroelectric Liquid Crystal for VR/AR

Active-matrix Addressed High Brightness and Ultra-high PPI F...

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International Conference on Display Technology, ICDT 2022

作者： Sun, Zhibo Wang, Sisi Yuan, Zhengnan Xia, Zhihe Lu, Lei Wong, Man Kwok, Hoi-Sing Srivastava, Abhishek Kumar State Key Laboratory of Advanced Displays and Optoelectronics Technologies Department of Electronic and Computer Engineering Hong Kong University of Science and Technology Kowloon Hong Kong Electronic and Computer Engineering Peking University Shenzhen518055 China

Barriers exits regarding increasing brightness and pixel density for various display technologies, be it, LCD, LED and OLED. In this paper, we proposed a defect-free high-contrast fast (~100us) active-matrix addressed DHFLC with a theoretical 11500 PPI due to its nature of no fringe field effect (FFE) and high capacitance, shedding a light on the barriers. For the realization, the no-storage-capacitor AM-DHFLC display device is fabricated as preliminary demo with both optimizations in the DHFLC alignment and pixel design. Innovatively, the no-storage-capacitor characteristic, which is impossible for NLC, not only rockets efficiency and aperture ratio from 57% to 83% with high brightness, but also reveals the potential in reducing the pixel size for higher resolution. Moreover, fast response around 100 us at 360 Hz for FSC display and no-FFE strengthen the promising potential of DHFLC in various modern display technologies, be it VR/AR, high PPI display, micro display, and high-resolution hologram. © 2022, John Wiley and Sons Inc. All rights reserved.

关键词： Rockets

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LateBA: Latent Backdoor Attack on Deep Bug Search via Infrequent Execution Codes 15

LateBA: Latent Backdoor Attack on Deep Bug Search via Infreq...

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15th Asia-Pacific Symposium on Internetware, Internetware 2024

作者： Yi, Xiaoyu Li, Gaolei Huang, Wenkai Lin, Xi Li, Jianhua Liu, Yuchen The School of Electronic Information and Electrical Engineering Shanghai Jiao Tong University Shanghai Key Laboratory of Integrated Administration Technologies for Information Security Shanghai Shanghai China The Department of Computer Science North Carolina State University Raleigh United States

ISBN: (纸本)9798400707056

Backdoor attacks can mislead deep bug search models by exploring model-sensitive assembly code, which can change alerts to benign results and cause buggy binaries to enter production environments. But assembly instructions have strict constraints and dependencies, and these additional model-sensitive assembly codes destroy semantics and syntax and are easily detected by dynamic analysis or context-based detection. To escape from the dynamic analysis-based detection, we propose a novel latent backdoor attack (LateBA) scheme based on the locality principle of program execution, which only poisons a few of infrequent execution codes, minimizing the effects on the original code logic. In LateBA, a progressive seed mutating strategy is designated to change the American Fuzzy Lop (AFL)-based path search tool to pay more attention to infrequent execution codes. With this strategy, the optimal range to positions in the whole program is determined. Subsequently, triggers are target model-sensitive assembly instructions, and try to minimize the variables that have been called in the context instructions in the trigger. Finally, we employ code semantic feature comparisons to select precise trigger injection positions within these ranges. The selection criteria of the trigger injection position is whether the corresponding code segments in this position have a data dependency relationship with other code segments. We evaluate the performance of LateBA over 7 deep bug search tasks. The results demonstrate the attack success rate of the proposed LateBA is considerable and competitive against the baselines. © 2024 Owner/Author.

关键词： Semantics

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High brightness and ultra-high ppi field-sequential-color (Fsc) display based on deformed helix ferroelectric liquid crystal for vr/ar 59th

High brightness and ultra-high ppi field-sequential-color (F...

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59th International Symposium, Seminar and Exhibition, Display Week 2022

作者： Sun, Zhibo Wang, Sisi Yuan, Zhengnan Xia, Zhihe Lu, Lei Wong, Man Kwok, Hoi-Sing Srivastava, Abhishek Kumar State Key Laboratory of Advanced Displays and Optoelectronics Technologies Department of Electronics and Computer Engineering Hong Kong University of Science and Technology Kowloon Hong Kong Electronic and Computer Engineering Peking University Shenzhen518055 China

Different display-based technologies like LCD, OLED and LED, all meet barriers in increasing brightness and pixel density. In this paper, a defect-free high-contrast fast (~100 μs) active-matrix addressed DHFLC is proposed with a theoretical 11500 PPI due to its nature of no fringe field effect (FFE) and high capacitance, shedding a light on the barriers. For the realization, the no-storage-capacitor AM-DHFLC display device is fabricated as a preliminary demo with both optimizations in the DHFLC alignment and pixel design. Innovatively, the no-storage-capacitor characteristic, which is impossible for NLC, not only rockets efficiency and aperture ratio from 57 % to 83 % with high brightness, but also reveals the potential in reducing the pixel size for higher resolution. Moreover, a fast response around 100 μs at 360 Hz for FSC display and no-FFE strengthens the promising potential of DHFLC in various modern display technologies, be it VR/AR, high PPI display, microdisplay, and high-resolution hologram. © 2022. John Wiley and Sons Inc. AIAA. All rights reserved.

关键词： Rockets

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Dual Ferroelectric Liquid Crystal Polarization Converter for Fast (100 kHz) and Bi-stable Beam Steering Based on Pancharatnam-Berry Devices

Dual Ferroelectric Liquid Crystal Polarization Converter for...

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The 2023 International Conference on Display Technology, (ICDT 2023)

作者： Sun, Zhibo Tam, Alwin Yuan, Zhengnan Dong, Shoucheng Huo, Yipeng Chen, Rongsheng Yeung, Fion S. Y. Kwok, Hoi-Sing State Key Laboratory of Advanced Displays and Optoelectronics Technologies and Center for Display Research Department of Electronic and Computer Engineering Hong Kong University of Science and Technology Clear Water Bay Road Kowloon Hong Kong

A high-efficiency (97%) fast polarization converter (100 kHz) is achieved using Ferroelectric Liquid Crystal (FLC). Innovatively, by cascading FLC cells, no diffraction and residual light loss are achieved. The flickering is less than 5%.. The contrast ratio is 1000:1. Bi-stable focus modulation is acheived. It is a promising candidate not just for display technologies, but also for high-efficiency beam-steering applications, such as Virtual Reality (VR)/Augmented Reality (AR), Light Ranging and Detection (LiDAR). © 2023, John Wiley and Sons Inc. All rights reserved.

关键词： Efficiency

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uTeBC-NLP at SemEval-2024 Task 9: Can LLMs be Lateral Thinkers?

arXiv

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arXiv 2024年

作者： Sadeghi, Pouya Abaskohi, Amirhossein Yaghoobzadeh, Yadollah Department of Electrical and Computer Engineering University of Tehran Iran Department of Computer Science University of British Columbia Canada Tehran Institute for Advanced Studies Khatam University Tehran Iran

Inspired by human cognition, Jiang et al. (2023c) create a benchmark for assessing LLMs' lateral thinking-thinking outside the box. Building upon this benchmark, we investigate how different prompting methods enhance LLMs' performance on this task to reveal their inherent power for outside-the-box thinking ability. Through participating in SemEval-2024, task 9, Sentence Puzzle sub-task, we explore prompt engineering methods: chain of thoughts (CoT) and direct prompting, enhancing with informative descriptions, and employing contextualizing prompts using a retrieval augmented generation (RAG) pipeline. Our experiments involve three LLMs including GPT-3.5, GPT-4, and Zephyr-7B-β. We generate a dataset of thinking paths between riddles and options using GPT-4, validated by humans for quality. Findings indicate that compressed informative prompts enhance performance. Dynamic in-context learning enhances model performance significantly. Furthermore, fine-tuning Zephyr on our dataset enhances performance across other commonsense datasets, underscoring the value of innovative thinking. © 2024, CC BY.

关键词： Benchmarking

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Review of Different Current Control Strategies for Thyristor-Controlled LC-Coupling Hybrid Active Power Filter 32

Review of Different Current Control Strategies for Thyristor...

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32nd IEEE International Symposium on Industrial Electronics, ISIE 2023

作者： Sou, Wai-Kit Chan, Pak-Ian Gong, Cheng Lam, Chi-Seng State Key Laboratory of Analog and Mixed-Signal VLSI University of Macau China University of Macau Institute of Microelectronics China University of Macau Faculty of Science and Technology Department of Electrical and Computer Engineering China

ISBN: (纸本)9798350399714

With the characteristics of low DC-link voltage and wide operating range, thyristor-controlled LC-coupling hybrid active power filter (TCLC-HAPF) is a promising power quality compensator in the medium-voltage-level power system. This paper reviews the design and implementation of different current control strategies for the TCLC-HAPF, which are hysteresis current control (HCC), multi-quasi-proportional-resonant control (MQPRC), H∞ optimal control (HOC), finite-set model predictive control (FS-MPC), second-order sliding mode control (SOSMC) and deadbeat current control (DBCC). Also, their pros and cons are fully discussed. In order to provide a deeper understanding about the steady-state and transient performances of these control strategies, the simulation study is presented under both inductive and capacitive loads. © 2023 IEEE.

关键词： Thyristors

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