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Conference on Human System Interactions, HSI

作者： Aleksandra Krajna Tomasz Kocejko Department of Biomedical Engineering Faculty of Electronics Telecommunications and Informatics Gdansk University of Technology Gdansk Poland

ISBN: (数字)9798350362916

ISBN: (纸本)9798350362923

This thesis presents a real-time skin assessment system with the main aim of detecting inflammatory acne lesions and tracking skin conditions. A facial acne lesion detection algorithm was developed, using a pre-trained YOLOv8 model for lesion detection and a Mediapipe detector for face detection. The proposed solution aims to create a system used in smart mirrors to help users self-monitor and monitor their skin condition in real time without much involvement. The work shows that it is possible to effectively detect skin changes even in a motion situation, which could be a good direction for the development of solutions based on video analytics.

关键词： Visual analytics Detectors Skin Real-time systems Quality assessment Lesions Mirrors

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Enhancing Facial Palsy Treatment through Artificial Intelligence: From Diagnosis to Recovery Monitoring

Enhancing Facial Palsy Treatment through Artificial Intellig...

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Conference on Human System Interactions, HSI

作者： Antoni Górecki Magdalena Mazur-Milecka Department of Biomedical Engineering Faculty of Electronics Telecommunications and Informatics Gdansk University of Technology Gdansk Poland

ISBN: (数字)9798350362916

ISBN: (纸本)9798350362923

The objective of this study is to develop and assess a mobile application that leverages artificial intelligence (AI) to support the rehabilitation of individuals with facial nerve paralysis. The application features two primary functionalities: assessing the paralysis severity and facilitating the monitoring of rehabilitation exercises. The AI algorithm employed for this purpose was Google's ML Kit “face-detection”. The classification of facial nerve palsy was achieved by measuring the asymmetry of the user's face using a proprietary algorithm developed specifically for this study. This approach not only enables a precise assessment of paralysis severity but also allows for a personalized rehabilitation experience. Furthermore, the monitoring of rehabilitation exercise adherence and correctness is conducted through algorithms crafted for this application to ensure that patients are performing their prescribed rehabilitation exercises effectively. This comprehensive system offers a tailored and interactive approach to the management of facial nerve paralysis through the integration of AI algorithms and user-friendly mobile technology.

关键词： Accuracy Medical services Paralysis Mobile applications Classification algorithms Internet Artificial intelligence

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Long-Term Stability Analysis of the Paper-Based Nomex 410 Substrate's Dielectric Properties

Long-Term Stability Analysis of the Paper-Based Nomex 410 Su...

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Conference on Diagnostics in Electrical Engineering (Diagnostika)

作者： Peter Lukacs Alena Pietrikova Igor Vehec Tomas Lenger Department of Technologies in Electronics Faculty of Electrical Engineering and Informatics Technical University of Kosice Kosice Slovakia

ISBN: (数字)9798350361490

ISBN: (纸本)9798350361506

This paper deals with the impact of the long-term stability tests and highly-accelerated stress test on the dielectric properties of paper-based Nomex 410 substrate. The investigation of the dielectric properties of the paper-based substrate by using the split cylinder resonator Keysight 85072A under the highly accelerated stress tests in shock chamber and the long-term stability in the climatic chamber over extended periods has been carried out. The results presented in this paper contribute valuable insights to the design and optimization of electronic systems, particularly those utilizing paper-based Nomex 410 substrates, with implications for enhancing long-term stability and reliability in diverse applications.

关键词： Dielectric constant Electric shock Moisture Life estimation Hafnium Stability analysis Substrates Thermal stability Stress Resilience

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Electrical Properties’ Stability of Flexible Carbon-Based Conductive Layers

Electrical Properties’ Stability of Flexible Carbon-Based C...

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International Spring Seminar on electronics Technology

作者： Peter Lukacs Tomas Lenger Igor Vehec Samuel Janoscik Department of Technologies in Electronics Faculty of Electrical Engineering and Informatics Technical University of Kosice Kosice Slovakia

ISBN: (数字)9798350385472

ISBN: (纸本)9798350385489

This paper deals with the electrical properties’ stability of flexible carbon-based conductive layers by applying the bending tests (1 million cycles for every sample). The first part of experiments delves into the design, fabrication, and characterization of carbon-based conductive layers, exploring the influence of various shapes of conductive tracks. The second part of experiments are focused on detailed investigation of conductive joints realization between the SMD components (0R resistors with 0805 packages) by analyzing different layouts and three materials for the joint’s creation. For this reason, the carbon-based conductive glue, silver-filled epoxy conductive glue and low-temperature solder paste were used and analyzed. The final paper systematically evaluates the stability of electrical properties, including conductivity and resistance, under different mechanical deformations and stressors by applying the axial and radial bending tests. The stability of electrical properties demonstrated in this paper paves the way for the development of more resilient and durable electronic carbon-based structures, offering new possibilities for the integration of flexible electronics into everyday devices and emerging technologies.

关键词： Resistance Bending Belts Stability analysis Topology Flexible electronics Carbon

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Fiber Optic Interferometer Estimating Conditions of the Measured Metal Surfaces

Fiber Optic Interferometer Estimating Conditions of the Meas...

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2024 Frontiers in Optics, FiO 2024

作者： Rychert, Karolina Sokolowski, Patryk Lubiński, Jacek GUT Optica Student Chapter Gdańsk University of Technology Poland Department of Metrology and Optoelectronics Faculty of Electronics Telecommunications and Informatics Gdańsk University of Technology Poland Department of Machine Design and Vehicles Faculty of Mechanical Engineering and Ship Technology Gdańsk University of Technology Poland

The research aims to explore the potential of fiber optic distance measurement through reflected light analysis on surfaces from real-life machine contacts, including stainless *** measurements enable the evaluation of abrasion of machine *** of mesurments was 10 to 500 um making fiber optic an ideal method of measurment. © Optica Publishing Group 2024, © 2024 The Author(s)

关键词： Fiber optic components

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Trustworthiness and Subversion in Large Service-Oriented Multi-Agent Systems under Virtual Anonymity and Blind Provider Selection

Trustworthiness and Subversion in Large Service-Oriented Mul...

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IEEE International Conference on Trust, Security and Privacy in Computing and Communications (TrustCom)

作者： Jerzy Konorski Faculty of Electronics Telecommunications and Informatics Gdansk University of Technology Gdansk Poland

ISBN: (数字)9798350381993

ISBN: (纸本)9798350382006

To promote honest service provision in multi-agent systems, a Computational Trustworthiness and Rating scheme collects service ratings and computes agents' trustworthiness levels (TLs). Studies of existing schemes fail to reflect closed-loop dynamics of TLs arising from the mutual influence of agents' behavior and TLs, and to capture relevant properties. Recent simulative and analytical models produce results tied to a particular attack scenario, or restricted to small-size systems or simplistic agent behavior. We analyze a class of parameterized skimp and slander attacks in a challenging setting featuring agents' virtual anonymity, collusion, and blind, i.e., TL-insensitive selection of service providers, as well as unpredictable service availability and receptivity. We derive closed-loop Markovian TL dynamics and their mean-value approximation to analytically characterize agents' steady-state TLs, and find a systematic defense against skimp and slander.

关键词： Privacy Analytical models Systematics Steady-state Security Multi-agent systems

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Improved Quasi-Random Designs with Constant Pool Sizes for Group Testing 18

Improved Quasi-Random Designs with Constant Pool Sizes for G...

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18th International Symposium on Information Theory and Its Applications, ISITA 2024

作者： Hamada, Ryouji Lu, Xiao-Nan Graduate School of Informatics and Engineering The University of Electro-Communications Department of Computer and Network Engineering Chofu-shi Tokyo Japan Gifu University Faculty of Engineering Department of Electrical Electronics and Computer Engineering Gifu-shi Gifu Japan

ISBN: (纸本)9784885523519

Group testing is a well-studied approach for identifying defective items among a large amount of items by conducting a relatively small number of tests on pools of items. In this paper, we propose a novel method for generating quasi-random designs with constant pool sizes for noiseless non-adaptive group testing. Our approach incorporates insights from combinatorial properties to optimize the distribution of Hamming distances in pooling designs. Simulations with established practical decoding algorithms show that our quasi-random designs outperform existing random and quasi-random methods in both identification accuracy and stability. These improved designs have the potential to provide significant benefits for real-world applications of group testing, such as PCR testing in large populations and network security. © 2024 The Institute of electronics, Information and Communication Engineers.

关键词： Hamming distance

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Channel Impulse Response Measurements at mmWave Band in Office and Conference Rooms 35

Channel Impulse Response Measurements at mmWave Band in Offi...

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35th General Assembly and Scientific Symposium of the International Union of Radio Science, URSI GASS 2023

作者： Drozdowska, Monika Ambroziak, Slawomir J. Cwalina, Krzysztof K. Rajchowski, Piotr Cardona, Narcis Gdańsk University of Technology Faculty of Electronics Telecommunications and Informatics Gdańsk Poland Iteam Research Institute Universitat Politècnica de València València Spain

ISBN: (纸本)9789463968096

In this paper, the measurements of the channel impulse response at mmWave band in office and conference rooms are described. The central frequency is 27 GHz with a bandwidth of 400 MHz. The description of the used measurement stand and considered environments are presented. The initial analysis of the power delay profile, mean delay, and RMS delay spread allows preliminary conclusions to be drawn that there is a significant impact of the dimensions of the rooms on these parameters. © 2023 International Union of Radio Science.

关键词： Millimeter waves

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Scheduling for Industrial Control Traffic Using Massive MIMO and Large Intelligent Surfaces 13

Scheduling for Industrial Control Traffic Using Massive MIMO...

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13th International Workshop on Resilient Networks Design and Modeling, RNDM 2023

作者： Fitzgerald, Emma Pióro, Michal Lund University Department of Electrical and Information Technology LundSE 22100 Sweden Gdańsk University of Technology Faculty of Electronics Telecommunications and Informatics Gdańsk80-233 Poland

ISBN: (纸本)9798350327359

Industry 4.0, with its focus on flexibility and customizability, is pushing in the direction of wireless communication in future smart factories, in particular massive multiple-input multiple-output (MIMO), and its future evolution Large Intelligent Surfaces (LIS), which provide more reliable channel quality than previous technologies. As such, there arises the need to perform efficient scheduling of industrial control traffic in massive MIMO systems, in a way that meets its highly stringent latency and reliability requirements. In this paper, we provide mixed-integer programming optimization formulations to perform this scheduling, while minimizing the use of radio resources. We give formulations for both fixed and variable schedule frame lengths. We tested our formulations in numerical experiments with varying traffic profiles and numbers of nodes, up to a maximum of 32 nodes. For all problem instances tested, we were able to calculate an optimal schedule within less than 1 s, making our approach feasible for use in real deployment scenarios. © 2023 IEEE.

关键词： Integer programming

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Machine Learning-Based Calibration Approaches for Single-Beam and Multiple-Beam Distance Sensors

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IEEE Sensors Journal 2024年第1期24卷 975-983页

作者： Syu, Jia-Hao Lin, Jerry Chun-Wei Biernacki, Piotr Ziebinski, Adam National Taiwan University Department of Computer Science and Information Engineering Taipei10617 Taiwan Silesian University of Technology Faculty of Automatic Control Electronics and Computer Science Department of Distributed Systems and Informatics Devices Gliwice44-100 Poland Silesian University of Technology Department of Distributed Systems and Informatic Devices Gliwice44-100 Poland

Sensors are the foundation to facilitate smart cities, smart grids, and smart transportation, and distance sensors are especially important for sensing the environment and gathering information. Researchers have developed various methods to calibrate distance sensors;however, they mainly focus on using external information for calibration, which is inefficient and computationally expensive. To alleviate the above problems, we propose machine learning (ML)-based calibration approaches for distance sensors. We develop two calibration mechanisms, where the naive mechanism directly predicts the true distance, while the residual mechanism predicts the residual for calibration. The conventional ML regression algorithms are then adopted to predict the true distance or calibration residual. Experimental results show that the designed residual calibration mechanism outperforms the naive mechanism by reducing the root mean square error (RMSE) by 92.2% and mean absolute error (MAE) by 93.3% in the fitting task. In prediction, the proposed 2-D-residual mechanism achieves an improvement of 78.6% and 65.7% compared to the state-of-the-art method. The experimental results show the effectiveness and generalization of the proposed ML-based calibration method, especially for the 2-D mechanism, which achieves the highest robustness in all fitting and prediction tasks. © 2001-2012 IEEE.

关键词： Calibration

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