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4th Optics Frontier Conference, OFS 2024

作者： Lin, Yangbing Wang, Teng Yan, Wei Peng, Xiao Zhang, Xinhai Department of Electrical and Electronic Engineering Southern University of Science and Technology Shenzhen518055 China College of Physics and Optoelectronic Engineering Key Laboratory of Optoelectronic Devices and Systems of Ministry of Education and Guangdong Province Shenzhen University Shenzhen518060 China School of Computer Science and Engineering South China University of Technology Guangzhou510641 China

ISBN: (纸本)9781510682269

Contact-free manipulation technology represents a novel approach that offers a fresh possibility for human-machine interaction, aiming to meet the evolving demands of this interface. In this paper, we introduce a contact-free planar display control technique based on imaging. In our research, we employ cameras as sensors and integrate infrared lasers with image processing techniques to detect and localize input signals. By establishing a coordinate mapping relationship between the operational plane and the display plane, we achieved contact-free control over the planar display. Our paper introduces two methods for establishing this coordinate mapping. The first involves constructing mapping functions between the rectified and transformed camera imagery and the display plane, thereby creating a point-to-point correspondence. The second method entails dividing both the camera imagery and the display plane into segments, establishing a one-to-one relationship between regions. We analyze the strengths and limitations of these two approaches. While the former boasts higher theoretical precision, it is more susceptible to equipment factors and exhibits slower response speeds. Conversely, the latter, despite its lower theoretical precision, offers faster response times. Through the setup of an experimental platform, we demonstrate the feasibility of our proposed. © 2024 SPIE.

关键词： Machine vision

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Research on PCI Planning Problem Based on Genetic Algorithm and Sequential Algorithm 6

Research on PCI Planning Problem Based on Genetic Algorithm ...

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6th IEEE International Conference on Power, Intelligent Computing and Systems, ICPICS 2024

作者： Sun, Haoming Sun, Yu Lu, Ye Chen, Jiajun Qu, Yixuan School of Physics and Optoelectronic Engineering Shandong University of Technology Shandong Province Zibo City China School of Electrical and Electronic Engineering Shandong University of Technology Shandong Province Zibo City China School of Computer Science and Technology Shandong University of Technology Shandong Province Zibo City China School of Electrical and Electronic Engineering Shandong University of and Technology Shandong Province Zibo City China School of Materials Science and Engineering Shandong University of and Technology Shandong Province Zibo City China

ISBN: (纸本)9798350374315

With the rapid development of mobile communication technology, the construction of the 5G network has become a hotspot worldwide. In this context, rational PCI network planning becomes particularly important. This study takes an area as an example and establishes a multi-objective optimization model based on genetic algorithm (GA) and sequential algorithm (SA) for the PCI planning problem in mobile communication system. By collecting and analyzing key data such as cell numbers and MR data, the objective function Fit is established, and the genetic algorithm is applied to solve the problem with the objective of minimizing the conflict, confusion and the sum of the number of MRs of modulo 3 interference in the PCI allocation, and with the PCI value allocated to each cell as the decision variable. The results show that the method can effectively improve network coverage and system capacity, reduce interference between users, and improve user experience. © 2024 IEEE.

关键词： Optimization algorithms

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A four-dimensional model for the information storage/output of life

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Nano Research 2023年第2期16卷 2630-2634页

作者： Bo Song Lei Jiang Key Laboratory of Optical Technology and Instrument for Medicine Ministry of EducationShanghai Key Lab of Modern Optical SystemSchool of Optical-Electrical Computer EngineeringUniversity of Shanghai for Science and TechnologyShanghai 200093China Key Laboratory of Bio-inspired Materials and Interfacial Science Technical Institute of Physics and ChemistryChinese Academy of SciencesBeijing 100190China School of Future Technology University of Chinese Academy of SciencesBeijing 100049China

A large amount of progress has achieved in neuroscience,however,there is still a lack of reasonable model for the storage/output(S/O)of life *** cyclical motion of cardio-and pulmonary-myocyte is a typical process of the life information S/O,while the opening and closing sites of Ca^(2+)ion channels during the motion can form a genetically programmed time-dependent three-dimensional(3D)*** phenomena indicate a strong correlation of the information S/O model of these myocytes with the time-sequence 3D ***,based on the time-dependent Ca^(2+)fluorescence imaging during the motion of cardio-and pulmonary-myocyte,here we suggest a four-dimensional(4D)code of information S/O model in cell and nervous *** from the fact of pulmonary myocyte motion able to be controlled by brain,it is deduced that the 4D code in brain has a role of controlling muscles through a pathway of the central nervous system,peripheral nervous system,neuromuscular junction,and muscle *** addition,we also suggested the 4D code of non-innate skill that can be programmed by the learning/training of a long time(~3 years),such as walking,writing,painting,sports,speech,singing,and ***,this 4D S/O model is reasonable for the ultralow energy consumption of life information transmission.

关键词： four-dimensional(4D)storage/output model life information cell nervous system

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Low-Complexity Channel Estimation for RIS-Assisted ISAC System

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China Communications 2025年第4期22卷 296-308页

作者： Chen Zhen Li Jianqing Zhang Haijun Zhang Wei The Institute of Microelectronics University of MacaoMacao 999078China School of Computer Science and Engineering Macao University of Science and TechnologyMacao 999078China Beijing Engineering and Technology Research Center for Convergence Networks and Ubiquitous Services University of Science and Technology BeijingBeijing 100083China Henan Academy of Science Applied Physics Institute Co. LtdZhengzhou 450008China

Integrated sensing and communication(ISAC),assisted by reconfigurable intelligent surface(RIS)has emerged as a breakthrough technology to improve the capacity and reliability of 6G wireless ***,a significant challenge in RIS-ISAC systems is the acquisition of channel state information(CSI),largely due to co-channel interference,which hinders meeting the required reliability *** address this issue,a minimax-concave penalty(MCP)-based CSI refinement scheme is *** approach utilizes an element-grouping strategy to jointly estimate the ISAC channel and the RIS phase shift *** previous methods,our scheme exploits the inherent sparsity in RIS-assisted ISAC channels to reduce training overhead,and the near-optimal solution is derived for our studied RIS-ISAC *** effectiveness of the element-grouping strategy is validated through simulation experiments,demonstrating superior channel estimation results when compared to existing benchmarks.

关键词： channel estimation element grouping integrated sensing and communication(ISAC) RIS

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A Novel Low Power and High Speed 9-Transistors Dynamic Full-Adder Cell Simulation and Design 28

A Novel Low Power and High Speed 9-Transistors Dynamic Full-...

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28th IEEE Symposium on computers and Communications, ISCC 2023

作者： Rahimi, Parisa Tabany, Myasar Pourmoafi, Seyedali School of Physics Engineering Networks Computer Science University of Hertfordshire ALI0 9AB Hatfield Security and Systems Research Group Hertfordshire United Kingdom

ISBN: (纸本)9798350300482

In this paper, a novel Full-Adder cell, named pseudo dynamic has been proposed and designed through an intensive simulation. The circuit has only 9 transistors and no internal nodes connected to ground. The circuit has been designed based on a 'floating full adder cell,' which has 3 inputs and a clock signal. Simulations have been performed using HSPICE 2008.03, based on 90nm technology, BSIM4 (level 54) version 4.4 model. The cell layout was designed and extracted by Tanner Research's L-Edit Version 13.00. Results show that the proposed new Full-Adder cell has considerable low power-delay product (PDP). The resulting PDP of a Multi-Output design with a 1.2 V power supply, 10 fF load capacitors, and a maximum input frequency of 200 MHz was 15.3405fJ. The maximum propagation delay was 25 pS, which shows the cell would work properly at high speeds. © 2023 IEEE.

关键词： Cells

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A Novel Approach to Design Secured and Privacy Enabled Health Data Linkage System based on Cyber Security Principles

A Novel Approach to Design Secured and Privacy Enabled Healt...

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2024 IEEE International Conference on Big Data and Machine Learning, ICBDML 2024

作者： Gayathri, S. Jaya Mabel Rani, A. Anushalin, P.S. Ravi, C.N. Jeyalaxmi, M. Samuthira Pandi, V. R.M.K. Engineering College Department of Computer Science and Engineering Tamil Nadu India Saveetha School of Engineering Saveetha Institute of Medical and Technical Sciences Department of Computer Science and Engineering Tamil Nadu Chennai India Dr.Sakunthala Engineering College Department of Biomedical Engineering Vel Tech Multi Tech Dr.Rangarajan Avadi Chennai India CMR Engineering College Department of Computer Science and Engineering Medchal Hyderabad India Prince Shri Venkateshwara Padmavathy Engineering College Department of Physics Chennai India Chennai Institute of Technology Centre for Advanced Wireless Integrated Technology Tamil Nadu Chennai India

ISBN: (纸本)9798350374100

Medical records from a variety of sources must be integrated into healthcare data repositories for knowledge discovery to be possible. An essential area of study is how to keep records linked when merging medical data. Researchers have proposed many solutions to this issue, all of which are relevant to industrialized nations that use patient identification numbers such as social security numbers, health insurance numbers, universal patient identifiers (UPIs), etc., to keep track of electronic health records. Because of issues with missing data, unclear patient identification, and excessive noise in patient information, these systems are not suitable for record linking of health data in underdeveloped nations. There is a serious concern that patients' personally identifiable information stored in electronic health records poses a threat to their privacy and leaves health information systems open to intrusion. We have examined the real-world challenges of healthcare data collection and integration for a national health data warehouse in this article. To accommodate the limited health data of poor nations like Bangladesh, we have developed privacy-preserving secured record linkage architecture we call Secured Health Data Handler (SHDH). For the purpose of facilitating the knowledge discovery process, our approach may anonymize identifying private data of patients while preserving record linkage in integrated health repositories. Even without a standard ID, our suggested strategy was able to connect records with sufficient accuracy for noisy data, according to the experimental results. © 2024 IEEE.

关键词： Data warehouses

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Large Language Model-based Decision-making for COLREGs and the Control of Autonomous Surface Vehicles

arXiv

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arXiv 2024年

作者： Agyei, Klinsmann Sarhadi, Pouria Naeem, Wasif School of Physics Engineering and Computer Science University of Hertfordshire Hatfield United Kingdom School of Electronics Electrical Engineering and Computer Science Queen’s University Belfast Belfast United Kingdom

In the field of autonomous surface vehicles (ASVs), devising decision-making and obstacle avoidance solutions that address maritime COLREGs (Collision Regulations), primarily defined for human operators, has long been a pressing challenge. Recent advancements in explainable Artificial Intelligence (AI) and machine learning have shown promise in enabling human-like decision-making. Notably, significant developments have occurred in the application of Large Language Models (LLMs) to the decision-making of complex systems, such as self-driving cars. The textual and somewhat ambiguous nature of COLREGs (from an algorithmic perspective), however, poses challenges that align well with the capabilities of LLMs, suggesting that LLMs may become increasingly suitable for this application soon. This paper presents and demonstrates the first application of LLM-based decision-making and control for ASVs. The proposed method establishes a high-level decision-maker that uses online collision risk indices and key measurements to make decisions for safe manoeuvres. A tailored design and runtime structure is developed to support training and real-time action generation on a realistic ASV model. Local planning and control algorithms are integrated to execute the commands for waypoint following and collision avoidance at a lower level. To the authors’ knowledge, this study represents the first attempt to apply explainable AI to the dynamic control problem of maritime systems recognising the COLREGs rules, opening new avenues for research in this challenging area. Results obtained across multiple test scenarios demonstrate the system’s ability to maintain online COLREGs compliance, accurate waypoint tracking, and feasible control, while providing human-interpretable reasoning for each decision. © 2024, CC BY-NC-ND.

关键词： Unmanned surface vehicles

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Quantum essence of particle superfluidity

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Nano Research 2022年第6期15卷 5230-5234页

作者： Bo Song Lei Jiang School of Optical-Electrical Computer Engineering University of Shanghai for Science and TechnologyShanghai 200093China Key Laboratory of Bio-inspired Materials and Interfacial Science Technical Institute of Physics and ChemistryChinese Academy of SciencesBeijing 100190China School of Future Technology University of Chinese Academy of SciencesBeijing 100049China

Life systems show an ultralow energy consumption in their high-efficiency bio-activities,implying a high-flux transport of ions and molecules with an ultralow resistivity.A collective motion(CM)of these particles is necessary for this kind of behaviors,different from the traditional Newtonian *** CM is an ordered particle state,resulting from the balance between attraction and repulsion of the particles,in which the attraction is a necessary *** ultralow resistivity of electronic or atomic fluid at low temperature is already described phenomenologically by introducing the interparticle ***,we try to establish a phenomenological expression for the quantum state of ion or molecule CM at ambient temperature,by also considering the attraction of *** studies suggest that the Bose-Einstein condensate potentially exists widely.

关键词： ultralow resistivity flow collective motion ions and molecules Ginzburg-Landau equation

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Shaping terahertz harmonic frequency combs with frequency-dependent external reflectors

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Physical Review A 2025年第4期111卷 043522-043522页

作者： Carlo Silvestri Xiaoqiong Qi Thomas Taimre Aleksandar D. Rakić Institute of Photonics and Optical Science (IPOS) School of Physics University of Sydney Sydney New South Wales 2006 Australia School of Electrical Engineering and Computer Science The University of Queensland Brisbane QLD 4072 Australia School of Mathematics and Physics The University of Queensland Brisbane QLD 4072 Australia

We present a method for engineering harmonic frequency combs (HFCs) in the terahertz spectral region. This approach involves interfacing a quantum cascade laser (QCL) with an external reflector featuring frequency-dependent reflectivity. A notable advantage of this method over existing ones is its dual functionality in shaping HFCs, allowing for control over both the frequency offset and comb spacing based on the external reflectivity profile. Moreover, the resulting HFCs manifest as sequences of short pulses in the time domain. Consequently, our method enables the generation of ultrashort picosecond pulses passively, providing a distinct alternative to conventional pulse generation systems reliant on active bias current modulation, which struggle with modulation frequencies significantly higher than the first beat note. This offers intriguing prospects for utilizing HFCs in pump and probe spectroscopy, a field already recognized in the literature as one of the most compelling applications of these states. Furthermore, we demonstrate that these HFCs can be triggered from an initial condition of free-running unlocked dynamics, eliminating the need for assuming free-running comb emission. Thus, the utilization of an external, frequency-dependent reflector is capable of enhancing the coherence of the QCL emission.

关键词： Quantum cascade lasers

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Graph-Based Patent Mining for Mechanical Designs

Graph-Based Patent Mining for Mechanical Designs

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Electrical engineering (ICEENG), 12th International Conference on

作者： Manal Helal Mohammed Helal School of Physics Engineering and Computer Science Hertfordshire University Hatfield UK Computer Engineering Department Arab Academy for Science Technology & Maritime Transport Cairo Egypt

ISBN: (数字)9798350343427

ISBN: (纸本)9798350343434

Patents represent a rich source of design innovations, prompting the application of different technologies. Machine learning, text and data mining, similarity scoring, and evolving ontology methods are among the various approaches applied in the literature. This study introduces a schema-free graph data modelling of Functional Analysis Diagrams (FAD) extracted from Patents and their associated Auto-CAD models. It aims to represent mechanical design patents semantically. The schema-free graph model allows for a flexible evolving ontology of known geometries, interactions, and functions. This evolution enables comprehensive queries and ensures efficient storage that is compatible with visualisation libraries. The developed PatMine SolidWorks Add-in ©streamlines CAD design comparison with stored patents' FAD annotations by highlighting shared concepts. It also enables comprehensive full-text and semantic search queries, similarity scoring, and efficient storage compatible with visualisation libraries. The extraction of functional analysis and geometric features empowers the patent database with capabilities for seamless integration with graph analytics and machine-learning approaches for future endeavours.

关键词： Patents Solid modeling Analytical models Technological innovation Databases Knowledge based systems Prototypes

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