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Initial Study on Implementation of Smoothing Filters for the Purpose of Bioimpedance Spectroscopy Parameters Classification

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IFAC-PapersOnLine 2022年第4期55卷 393-398页

作者： Aleksandra Kawala-Sterniuk Amir F. Al-Bakri Mariusz Pelc Katarzyna Cichoń Wojciech Chlewicki Stepan Ozana Radek Martinek Jakub Możaryn Volodymyr Khoma Halyna Kenyo Edward Jacek Gorzelańczyk Michał Podpora Jarosław Zygarlicki Opole University of Technology Faculty of Electrical Engineering Automatic Control and Informatics 45-758 Opole Poland Department of Biomedical Engineering College of Engineering University of Babylon 51001 Babylon Iraq University of Greenwich School of Computing and Mathematical Sciences SE10 9LS London UK West Pomeranian University of Technology in Szczecin Faculty of Electrical Engineering 70-313 Szczecin Poland Faculty of Mechatronics Warsaw University of Technology 02-525 Warsaw Poland Lviv Polytechnic National University Institute of Computer Technologies Automation and Metrology Lviv Ukraine Institute of Philosophy Kazimierz Wielki University 85-092 Bydgoszcz Poland Faculty of Mathematics and Computer Science Adam Mickiewicz University in Poznań 61-614 Poznań Poland

Bioimpedance is a commonly used method for various conditions monitoring. In this paper, the authors carried out some research where they implemented various smoothing filters to enable identification of the bioimpedance spectroscopy parameters. The proposed filtering methods may also be used for application on embedded systems, which have smaller computing power but have become recently very popular. The obtained results with the implementation of smoothing filters were promising, however, some of the obtained results were unsatisfactory. This work also contains a brief introduction to bioimpedance spectroscopy and smoothing filters.

关键词： Bioimpedance Spectroscopy smoothing-filtering Savitzky-Golay Filter Median Filtering Moving-Average Filters

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Microbiological and biological analysis of polymer-oxide coatings formed on dental implants enriched with clindamycin

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Materials Chemistry and Physics 2025年 344卷

作者： Hubert Knap Weronika Jaśko Weronika Maciak Izabella Ślęzak-Prochazka Alicja Kazek-Kęsik Silesian University of Technology Faculty of Chemistry B. Krzywoustego Str. 6 44–100 Gliwice Poland Department of Systems Biology and Engineering Faculty of Automatic Control Electronics and Computer Science Silesian University of Technology Akademicka 16 44–100 Gliwice Poland Silesian University of Technology Biotechnology Centre Krzywoustego Str. 8 44–100 Gliwice Poland

Coatings on dental implants are still being developed in order to obtain an ideal balance between their cytocompatibility and antibacterial properties. This paper presents the bacteriostatic and biological properties of oxide-polymer layers with clindamycin on titanium dental implants. A layer was formed on the surface of titanium implants, which was composed of poly(lactic- co -glycolic acid) (PLGA) and clindamycin. The surface morphology was analyzed using an optical microscope and a scanning electron microscope (SEM). Clindamycin loaded into the polymer was successfully found to inhibit S. aureus and slightly inhibit E. coli bacteria. The average inhibition zone obtained for S. aureus was 14 mm. Only single bacteria were found to be adhered to the implant surface, and changes in their morphology were observed (SEM analysis). The cytocompatibility of the implant extracts was evaluated via the Alamar Blue test and by using cytometry techniques. More than 95 % of L929 cells were found to be living after 24 h of their culture with extracts collected from the implants with hybrid coatings. Additionally, the stability of different concentrations of clindamycin in aqueous solutions at various temperatures was analyzed. It was found that the storage of clindamycin at 4 °C caused the lowest changes in concentration. The concentration of clindamycin influenced both the L929 cells’ viability and bacterial inhibition.

关键词： Dental implant Antibacterial Clindamycin Biological analysis

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Inclusion of Climate Variables for Dengue Prediction Model: Preliminary Analysis 7

Inclusion of Climate Variables for Dengue Prediction Model: ...

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7th IEEE International Conference on Signal and Image Processing Applications, ICSIPA 2021

作者： Thiruchelvam, Loshini Dass, Sarat Chandra Mathur, Nirbhay Asirvadam, Vijanth Sagayan Gill, Balvinder Singh Department of Physical and Mathematical Science Faculty of Science Universiti Tunku Abdul Rahman UTAR Kampar Campus Jalan Universiti Kampar Bandar Barat 31900 Malaysia Department of Mathematical and Computer Sciences Heriot-Watt Universiti Malaysia Putrajaya62200 Malaysia Department of Electrical and Electronics Universiti Teknologi PETRONAS UTP Seri Iskandar Perak 32610 Malaysia Department of Electrical and Electronics Universiti Teknologi PETRONAS UTP Seri Iskandar Perak 2610 Malaysia Disease Control Division Ministry of Health MOH Putrajaya62590 Malaysia

ISBN: (纸本)9781665435925

This study aimed to build best dengue cases prediction model for Petaling district, in Selangor. Linear Least Square estimation method is used to build the models and Mean Square Error (MSE) and Akaike Information Criterion (AIC) value is used as tool of comparison between models. Prior to model development, the respective variables are first normalized, using 0-1 normalization procedure. Next, significant predictors are identified from weather variables namely mean temperature, relative humidity, and rainfall. Thirdly, feedback data was included and identified if could yield better prediction models. Few model orders of lag time are built simultaneously, and the most accurate prediction model was selected for Petaling district. Study found dengue prediction models including all three climate variables of mean temperature, relative humidity, cumulative rainfall and together with previous dengue cases to have the lowest MSE and AIC values. This is aligned with previous studies which selected model with climate and previous dengue cases models as best model fit. Thus, study proposed future studies to incorporate all three climate variables and previous dengue cases while developing dengue prediction models. © 2021 IEEE

关键词： Mean square error

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Evaluation of the ARCore Indoor Localization Technology

Evaluation of the ARCore Indoor Localization Technology

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Roedunet International Conference (RoEduNet)

作者： Anca Morar Maria Anca Băluţoiu Alin Moldoveanu Florica Moldoveanu Alex Butean Victor Asavei University POLITEHNICA of Bucharest Faculty of Automatic Control and Computer Science Bucharest Romania Lucian Blaga University of Sibiu Faculty of Engineering Industrial Software Sibiu Romania

ISBN: (数字)9780738112657

ISBN: (纸本)9781665418850

Augmented reality has become a very powerful tool nowadays. With the recent technological advance, smartphones have the ability to display augmented content on the screen. What makes the difference is the naturalness with which the multimedia content is superimposed over the video stream acquired with the phone's camera. This perfect overlay depends on the accurate estimation of the position and orientation of the smartphone's camera relative to the 3D representation of the space. ARCore is an augmented reality framework that computes the position and orientation of the smartphone. In order to assess the possibility of integrating ARCore within a virtual and augmented reality platform, we evaluated the accuracy of the ARCore localization technology, using the HTC Vive system as a reference. We designed an evaluation methodology, along with visualization tools that enable a thorough comparison between these two technologies.

关键词： Location awareness Smart phones Augmented reality Cameras Trajectory Three-dimensional displays computer science

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Landscape Change Monitoring using Satellite Data and Open Data Cube Platform

Landscape Change Monitoring using Satellite Data and Open Da...

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IEEE International Conference on Intelligent computer Communication and Processing (ICCP)

作者： Cătălin-Mihai Vâjâială-Tomici Ion-Dorinel Filip Florin Pop Faculty of Automatic Control and Computer Science University POLITEHNICA of Bucharest Romania National Institute for Research and Development in Informatics – ICI Bucharest Romania

ISBN: (数字)9781728190808

ISBN: (纸本)9781728190815

The project presented in this paper aims to bring to the Romanian stage a system capable of providing information on various land changes that occur in Romania. These changes can have multiple causes, either natural or caused by human activities. Local authorities, business people, and researchers can use this information to make informed decisions that can influence Romanian citizens' well-being. This paper presents a method to build a complex system at the national level, aiming to highlight the usefulness of using geospatial data. In order to interact in a pleasant way with geospatial data providers, this work is based on an open-source solution called Open Data Cube, which incorporates in a library different services, acting as an interface between the system itself and the data providers, but also as a standard for data storage. This paper explores three different use cases, namely the detection of deforestation, monitoring the evolution of urbanization, and the evolution of the Black Sea coast, especially in the area of the mouth of the Danube river. Although different, with totally different causes, these three examples highlight the versatility of such a system.

关键词： Indexes Satellites Monitoring Vegetation mapping Urban areas Open source software Rivers

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Intelligent controller based Host-to-Host Congestion control: Fuzzy Logic controller 7

Intelligent Controller based Host-to-Host Congestion Control...

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7th International Japan-Africa Conference on electronics, Communications and Computations, JAC-ECC 2019

作者： Esawi, Doaa H. Attiya, Gamal El-Bardini, Mohammad Industrial Electronics and Control Faculty of Electronic Engineering Menoufia Egypt Computer Science Faculty of Electronic Engineering Menoufia Egypt

ISBN: (纸本)9781728156170

This paper employs an intelligent control technique (Fuzzy logic) in the area of Internet congestion control. Generally, congestion problem occurs when traffic load increases. This problem decreases network utilization and increases traffic delay. Hence, an intelligent congestion control is required to avoid the mentioned problem. Nevertheless, the main challenge in utilizing fuzzy controller is how to choice the number of membership functions. A greater resolution is achieved with a large number of membership functions. In this paper, two different cases as considered: the first case employs 3-memberships while the second case employs 5-memberships. The proposed controller is evaluated by using NS2 simulation tool and the results are compared with the most recent protocols. The results indicate that the proposed controller increases the throughput and decreases both the packet loss and packet delay. © 2019 IEEE.

关键词： Membership functions

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Uniform Asymptotic Stabilization of Affine Periodic Discrete-Time Systems

Uniform Asymptotic Stabilization of Affine Periodic Discrete...

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IEEE Conference on Decision and control

作者： Adam Czornik Evgeniĭ Makarov Michał Niezabitowski Svetlana Popova Vasilii Zaitsev Faculty of Automatic Control Electronics and Computer Science Silesian University of Technology Gliwice Poland Institute of Mathematics of National Academy of Sciences of Belarus Minsk Belarus Udmurt State University Izhevsk Russia

ISBN: (数字)9781728174471

ISBN: (纸本)9781728174488

In this article, we study the problem of asymptotic stabilization for nonlinear affine discrete-time control systems with periodic coefficients via state feedback. It is supposed that the origin of the free dynamic system is (non-asymptotically) stable. The method for constructing a damping control is extended from time-invariant systems to time varying periodic affine discrete-time systems. This method is based on the Krasovsky-La Salle invariance principle for periodic systems. Using this approach, we obtain sufficient conditions for uniform local and global asymptotic stabilization for those systems.

关键词： Time-varying systems Closed loop systems Trajectory Lyapunov methods Discrete-time systems Asymptotic stability Damping

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Refinement of Massey Inequality : (To Nicolae Ţǎpuş on his 70th birthday)

Refinement of Massey Inequality : (To Nicolae Ţǎpuş on hi...

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2019 IEEE International Symposium on Information Theory, ISIT 2019

作者： Popescu, Pantelimon George Omar Choudary, Marios Computer Science and Engineering Department Faculty of Automatic Control and Computers University Politehnica of Bucharest Splaiul Independenţei 313 Bucharest060042 Romania

ISBN: (纸本)9781538692912

关键词： Information theory

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Defect engineering approaches for metal oxide semiconductor-based chemiresistive gas sensing

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Coordination Chemistry Reviews 2025年 541卷

作者： Kumar, Amit Mazumder, Julaiba Tahsina Joyen, Kenza Favier, Frédéric Mirzaei, Ali Kim, Jin-Young Kwoka, Monika Bechelany, Mikhael Jha, Ravindra Kumar Kumar, Mahesh Kim, Hyoun Woo Kim, Sang Sub Department of Electrical Engineering Indian Institute of Technology Jodhpur Jodhpur 342030 India Department of Electronics Assam Skill University Assam Mangaldai 784125 India European Institut of Membranes (IEM) – UMR 5635 University of Montpellier ENSCM CNRS Montpellier 34090 France Institut Charles Gerhardt Montpellier (ICGM) – UMR 5253 University of Montpellier ENSCM CNRS Montpellier 34090 France Department of Materials Science and Engineering Shiraz University of Technology Shiraz 715557-13876 Iran Customized manufacturing R&D department Korea Institute of Industrial Technology Gyeonggi-do 15014 South Korea Department of Cybernetics Nanotechnology and Data Processing Faculty of Automatic Control Electronics and Computer Science Silesian University of Technology Akademicka 16 Gliwice 44-100 Poland Functional Materials Group Gulf University for Science and Technology (GUST) Mubarak Al-Abdullah 32093 Kuwait Department of Electronics and Electrical Engineering & Centre for Intelligent Cyber-Physical Systems Indian Institute of Technology Guwahati Guwahati 781039 India Division of Materials Science and Engineering Hanyang University Seoul 04763 South Korea Department of Materials Science and Engineering Inha University Incheon 22212 South Korea

Defect engineering in metal oxides presents a promising approach for tailoring material properties. This strategy enhances gas sorption, catalysis, and control over key physical characteristics such as bandgap, magnetic behavior, and electrical conductivity. Despite its potential, the role of defect engineering in advancing metal oxide semiconductor (MOS) gas-sensing performance remains underexplored. This review introduces defect engineering strategies, emphasizing their applications in gas sensing. Gas sensors play a vital role in environmental monitoring, industrial safety, healthcare, and in improving energy efficiency. The demand for advanced gas sensors has never been more critical, given the need for real-time, accurate, and cost-effective detection of pollutant gases. MOS-based gas sensors are widely used in air quality monitoring, industrial safety, and health diagnostics. Vacancies and defect architectures in MOS have been widely studied for their role in sensing performance, as they fundamentally influence sensor efficiency. The effectiveness of MOS sensors largely depends on the type and concentration of defects. This review introduces vacancies and defects in MOS, followed by an in-depth discussion of defect types, factors influencing defect formation, and their role in charge transport. Additionally, it examines the correlation between elemental chemical properties and defect chemistry. Special attention is given to the defect chemistry of metal oxides, including TiO₂, ZnO, Co₃O₄, ZrO₂, WO₃, and CeO₂. It concludes with an examination of surface engineering methods for defect control to improve gas-sensing capabilities. © 2024

关键词： Chemiresistive gas sensing Defect Engineering Metal-oxide semiconductor

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The Energy Efficiency of a Prosumer in a Photovoltaic System

The Energy Efficiency of a Prosumer in a Photovoltaic System

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International Symposium for Design and Technology of electronics Packages (SIITME)

作者： Marius-Alexandru Dobrea Stefan Bichiu Ioana Opris Mihaela Vasluianu Faculty of Automatic Control and Computer Science UPB Bucharest Romania Faculty of Power Engineering UPB Bucharest Romania Collective of Automation and Applied Informatics Faculty of Hidrotehnics UTCB Bucharest Romania

ISBN: (数字)9781728175065

ISBN: (纸本)9781728175072

This article aims to calculate the net income achieved by a prosumer for an existing On-Grid system of photovoltaic panels consisting of a set of 12 poly crystalline panels with a nominal power of 250 Wand 60 cells and an On-Grid inverter (StecaGrid model) with a maximum power of 3000 W. The prosumer is located in southern Romania, Ilfov County. Modeling of the photovoltaic panel in Matlab / SIMULINK was performed using a mathematical model, and it was compared with a real data set. Next, an analysis was made of the energy produced by the photovoltaic system, and the energy consumed by the prosumer, the excess energy being introduced in the national energy system. We have achieved a net income saving for March, so the analyzed photovoltaic system has energy efficiency that can significantly reduce electricity costs over time. Thus, using the Matlab / Simulink model, photovoltaic systems can be designed to satisfy the needs of prosumers.

关键词： Photovoltaic systems Mathematical model Solar power generation Software packages Inverters Temperature Temperature measurement

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