Katalog Czasopism

• Hybrid Expert System for Computer-Aided Design of Ship Thruster Subsystems

  Publikacja

  • A. Kopczyński

  - IEEE Access - Rok 2020

  The article presents an expert system supporting the design of ship's power subsystems, in particular the thruster subsystem. The proposed hybrid expert system uses the results of simulation tests as the additional source of knowledge. The results of system operation are collated in a report which can be used as part of ship design description. The work oriented on developing the expert system is the continuation of the research...

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• Neural Approximators for Variable-Order Fractional Calculus Operators (VO-FC)

  Publikacja

  • B. Puchalski

  - IEEE Access - Rok 2022

  The paper presents research on the approximation of variable-order fractional operators by recurrent neural networks. The research focuses on two basic variable-order fractional operators, i.e., integrator and differentiator. The study includes variations of the order of each fractional operator. The recurrent neural network architecture based on GRU (Gated Recurrent Unit) cells functioned as a neural approximation for selected...

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• Simulator for Performance Evaluation of ASON/GMPLS Network

  Publikacja

  • S. Kaczmarek
  • M. Młynarczuk

  - IEEE Access - Rok 2021

  The hierarchical control plane network architecture of Automatically Switched Optical Network with utilization of Generalized Multi-Protocol Label Switching protocols is compliant to next generation networks requirements and can supply connections with required quality of service, even with incomplete domain information. Considering connection control, connection management and network management, the controllers of this architecture...

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• Four Degree-of-Freedom Hydrodynamic Maneuvering Model of a Small Azipod-Actuated Ship With Application to Onboard Decision Support Systems

  Publikacja

  • M. Marley
  • R. Skjetne
  • M. Gil
  • P. Krata

  - IEEE Access - Rok 2023

  The main contribution of this paper is a numerical ship motion model of NTNU’s research vessel Gunnerus, capturing the surge, sway, roll, and yaw dynamics when sailing in uniform and steady currents. The model utilizes a crossflow drag formulation for the transverse viscous loads, and it includes a nonlinear formulation for the propulsion and steering loads provided by two azipod thrusters. A wide range of experimental data obtained...

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• Mask Detection and Classification in Thermal Face Images

  Publikacja

  • N. Kowalczyk
  • M. Sobotka
  • J. Rumiński

  - IEEE Access - Rok 2023

  Face masks are recommended to reduce the transmission of many viruses, especially SARS-CoV-2. Therefore, the automatic detection of whether there is a mask on the face, what type of mask is worn, and how it is worn is an important research topic. In this work, the use of thermal imaging was considered to analyze the possibility of detecting (localizing) a mask on the face, as well as to check whether it is possible to classify...

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• Concurrent Video Denoising and Deblurring for Dynamic Scenes

  Publikacja

  • E. Katsaros
  • P. Kopa Ostrowski
  • D. Węsierski
  • A. Jezierska (dawniej: A. Jezierska)

  - IEEE Access - Rok 2021

  Dynamic scene video deblurring is a challenging task due to the spatially variant blur inflicted by independently moving objects and camera shakes. Recent deep learning works bypass the ill-posedness of explicitly deriving the blur kernel by learning pixel-to-pixel mappings, which is commonly enhanced by larger region awareness. This is a difficult yet simplified scenario because noise is neglected when it is omnipresent in a wide...

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• On Inadequacy of Sequential Design of Experiments for Performance-Driven Surrogate Modeling of Antenna Input Characteristics

  Publikacja

  • A. Pietrenko-Dąbrowska
  • S. Kozieł

  - IEEE Access - Rok 2020

  Design of contemporary antennas necessarily involves electromagnetic (EM) simulation tools. Their employment is imperative to ensure evaluation reliability but also to carry out the design process itself, especially, the adjustment of antenna dimensions. For the latter, traditionally used parameter sweeping is more and more often replaced by rigorous numerical optimization, which entails considerable computational expenses, sometimes...

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• Sensor Position Estimation Method for IoT Using Mobile Reference Node

  Publikacja

  • J. Stefański
  • J. Sadowski

  - IEEE Access - Rok 2020

  The paper proposes an innovative method of locating objects for the Internet of Things (IoT). The proposed method allows the position of a fixed measuring sensor (MS) to be estimated using one mobile base station with a known position moving around the MS. The mathematical analysis of the method, and three algorithms — Newton’s (NA), gradient descent (GD) and genetic (GA) — for solving the system of non-linear positional equations...

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• Decoupled Kalman filter based identification of time-varying FIR systems

  Publikacja

  • M. Ciołek
  • M. Niedźwiecki
  • A. Gańcza

  - IEEE Access - Rok 2021

  When system parameters vary at a fast rate, identification schemes based on model-free local estimation approaches do not yield satisfactory results. In cases like this, more sophisticated parameter tracking procedures must be used, based on explicit models of parameter variation (often referred to as hypermodels), either deterministic or stochastic. Kalman filter trackers, which belong to the second category, are seldom used in...

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• An Empirical Study on the Impact of Gender on Mobile Applications Usability

  Publikacja

  • P. Weichbroth

  - IEEE Access - Rok 2022

  In the area of broadband wireless Internet, mobile applications have already replaced their desktop equivalents and are recognized as valuable tools for any size of businesses and for private use. With the emergence of millions of apps, the quality of their interaction with the user remains an open question for software vendors. While female and male requirements and preferences are not always similar, to the best of our knowledge,...

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• Examining the Impact of Distance Between VSL Road Signs on Vehicle Speed Variance

  Publikacja

  • A. Sroczyński
  • A. Czyżewski

  - IEEE Access - Rok 2023

  Variable speed limit (VSL) is an intelligent transportation system (ITS) solution for traffic management. The speed limits can be changed dynamically to adapt to traffic conditions such as visibility and traffic volume, curvature, and grip coefficient of the road surface. The VSL traffic sign location problem and attempts to solve it using computer simulation are presented in this paper. Experiments on a selected road segment,...

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• A Parallel Corpus-Based Approach to the Crime Event Extraction for Low-Resource Languages

  Publikacja

  • N. Khairova
  • O. Mamyrbayev
  • N. Rizun
  • M. Razno
  • G. Ybytayeva

  - IEEE Access - Rok 2023

  These days, a lot of crime-related events take place all over the world. Most of them are reported in news portals and social media. Crime-related event extraction from the published texts can allow monitoring, analysis, and comparison of police or criminal activities in different countries or regions. Existing approaches to event extraction mainly suggest processing texts in English, French, Chinese, and some other resource-rich...

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• Multifunctional Bandpass Filter/Displacement Sensor Component

  Publikacja

  • Z. Shaterian
  • M. Mrozowski

  - IEEE Access - Rok 2023

  This paper presents the design and realization of a multifunctional bandpassfilter/displacement-sensor using an edge-coupled microstrip bandpass filter loaded by a pair of split ring resonators (SRRs). It is shown that while the structure acts as a bandpass filter at its operating frequency, the phase of the reflection coefficient from a movable loading resonator at the resonance frequency of the resonator can be used for displacement...

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• User Authentication by Eye Movement Features Employing SVM and XGBoost Classifiers

  Publikacja

  • P. Odya
  • F. Górski
  • A. Czyżewski

  - IEEE Access - Rok 2023

  Devices capable of tracking the user’s gaze have become significantly more affordable over the past few years, thus broadening their application, including in-home and office computers and various customer service equipment. Although such devices have comparatively low operating frequencies and limited resolution, they are sufficient to supplement or replace classic input interfaces, such as the keyboard and mouse. The biometric...

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• Design of Frequency-Reconfigurable Branch-Line Crossover Using Rectangular Dielectric Channels

  Publikacja

  • R. K. Barik
  • S. Kozieł
  • E. Bernhardsson

  - IEEE Access - Rok 2023

  This paper presents an efficient yet straightforward passive reconfiguration technique to tune the operating frequency of a branch-line crossover (BLCO). The underlying principle is to fill rectangular dielectric channels (RDCs) prepared beforehand with either air or materials of different relative permittivity. Two configurations (one RDC and three RDCs in each arm) of the branch-line crossover are employed to estimate the tunability...

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• Shape Memory Alloy-Based Fluidically Reconfigurable Metasurfaced Beam Steering Antenna

  Publikacja

  • S. Shah
  • S. Shah
  • E. Bernhardsson
  • S. Kozieł

  - IEEE Access - Rok 2023

  A low-cost actuator-based fluidically programmable metasurface (FPMS) antenna is proposed to solve the slow tuning speed problem of the manually fluidic based reconfigurable antennas. The FPMS-based antenna is probe-fed and comprises a 4 × 4 square ring metasurface as a superstrate. Moreover, two shape memory alloy (SMA)-based electrically-controlled actuators are employed in the design for controlling the position of the 3D-printed...

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• Predicting emotion from color present in images and video excerpts by machine learning

  Publikacja

  • A. Wędołowska
  • D. Weber
  • B. Kostek

  - IEEE Access - Rok 2023

  This work aims at predicting emotion based on the colors present in images and video excerpts using a machine-learning approach. The purpose of this paper is threefold: (a) to develop a machine-learning algorithm that classifies emotions based on the color present in an image, (b) to select the best-performing algorithm from the first phase and apply it to film excerpt emotion analysis based on colors, (c) to design an online survey...

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• 5G Millimeter Wave Network Optimization: Dual Connectivity and Power Allocation Strategy

  Publikacja

  • A. Fayad
  • T. Cinkler
  • J. Rak

  - IEEE Access - Rok 2023

  The fifth generation (5G) of mobile networks utilizing millimeter Wave (mmWave) bands can be considered the leading player in meeting the continuously increasing hunger of the end user demands in the near future. However, 5G networks are characterized by high power consumption, which poses a significant challenge to the efficient management of base stations (BSs) and user association. Implementing new power consumption and user...

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• Breast MRI segmentation by deep learning: key gaps and challenges

  Publikacja

  • K. Askaripour
  • A. Żak

  - IEEE Access - Rok 2023

  Breast MRI segmentation plays a vital role in early diagnosis and treatment planning of breast anomalies. Convolutional neural networks with deep learning have indicated promise in automating this process, but significant gaps and challenges remain to address. This PubMed-based review provides a comprehensive literature overview of the latest deep learning models used for breast segmentation. The article categorizes the literature...

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• Autoencoder application for anomaly detection in power consumption of lighting systems

  Publikacja

  • T. Śmiałkowski
  • A. Czyżewski

  - IEEE Access - Rok 2023

  Detecting energy consumption anomalies is a popular topic of industrial research, but there is a noticeable lack of research reported in the literature on energy consumption anomalies for road lighting systems. However, there is a need for such research because the lighting system, a key element of the Smart City concept, creates new monitoring opportunities and challenges. This paper examines algorithms based on the deep learning...

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• Strategies for Dealing With Software Product Management Challenges

  Publikacja

  • O. Springer
  • J. Miler
  • M. Wróbel

  - IEEE Access - Rok 2023

  Software product management, which involves multiple processes and responsibilities and links to many activities within the organisation, increases the success rate of IT projects. However, the adoption of product management activities and the implementation of the software product manager role itself varies between companies. This research explores the topic of software product managers’ strategies for dealing with challenges...

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• Scoreboard Architectural Pattern and Integration of Emotion Recognition Results

  Publikacja

  • A. Landowska
  • G. Brodny

  - IEEE Access - Rok 2019

  This paper proposes a new design pattern, named Scoreboard , dedicated for applications solving complex, multi-stage, non-deterministic problems. The pattern provides a computational framework for the design and implementation of systems that integrate a large number of diverse specialized modules that may vary in accuracy, solution level, and modality. The Scoreboard is an extension of Blackboard design pattern and comes under...

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• Accelerated Re-Design of Antenna Structures Using Sensitivity-Based Inverse Surrogates

  Publikacja

  • S. Kozieł
  • A. Bekasiewicz

  - IEEE Access - Rok 2020

  The paper proposes a novel framework for accelerated re-design (dimension scaling) of antenna structures using inverse surrogates. The major contribution of the work is a sensitivity-based model identification procedure, which permits a significant reduction of the number of reference designs required to render the surrogate. Rigorous formulation of the approach is supplemented by its comprehensive numerical validation using a...

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• A Model-Order Reduction Approach for Electromagnetic Problems With Nonaffine Frequency Dependence

  Publikacja

  • G. Fotyga

  - IEEE Access - Rok 2021

  The aim of this paper is to present a novel model-order reduction (MOR) technique for the efcient frequency-domain nite-element method (FEM) simulation of microwave components. It is based on the standard reduced-basis method, but the subsequent expansion frequency points are selected following the so-called sparsied greedy strategy. This feature makes it especially useful to perform a fast-frequency sweep of problems that lead...

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• A Cross-Polarisation Discrimination Analysis of Off-Body Channels in Passenger Ferryboat Environments

  Publikacja

  • S. J. Ambroziak (dawniej: S. Ambroziak)
  • K. Cwalina
  • P. Rajchowski
  • F. D. Cardoso
  • M. M. Ferreira
  • L. M. Correia

  - IEEE Access - Rok 2022

  There is a need for investigating radio channels for Body Area Networks considering the depolarisation phenomenon and new types of environments, since these aspects are becoming very important for systems design and deployment. This paper presents an analysis of cross-polarisation discrimination for off-body channels based on a measurement campaign performed in a passenger ferryboat, i.e., where all walls, floors and ceilings are...

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• QRS Morphology-Based EDR Signal—Factors Determining its Properties

  Publikacja

  • P. Przystup
  • A. Poliński
  • J. Wtorek

  - IEEE Access - Rok 2022

  Respiration-induced signals contain a clinically significant information. It could be obtained utilizing both direct and indirect methods. ECG-Derived Respiration (EDR) method is the latter one. However, in this case, two approaches could be distinguished. First one is based on determining changes in the morphology of QRS complexes while the second one is based on the Respiratory Sinus Arrhythmia (RSA) mechanism. The former approach...

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• Highly-Miniaturized Dual-Mode Bandpass Filter Based on Quarter-Mode Substrate Integrated Waveguide with Wide Stopband

  Publikacja

  • R. K. Barik
  • S. Kozieł
  • S. Szczepański

  - IEEE Access - Rok 2022

  This paper presents a novel design of a highly-miniaturized dual-mode bandpass filter (BPF) employing a quarter-mode substrate integrated waveguide (QMSIW). The QMSIW resonator is based on a square cavity with metallic vias along two sides, and open-ended edges at the remaining sides that contain orthogonal feed lines. An open slot is introduced along the two sides of the square cavity with metallic vias to form a magnetic wall....

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• On Improved-Reliability Design Optimization of High-Frequency Structures Using Local Search Algorithms

  Publikacja

  • S. Kozieł
  • A. Pietrenko-Dąbrowska
  • P. Płotka

  - IEEE Access - Rok 2022

  The role of numerical optimization has been continuously growing in the design of high-frequency structures, including microwave and antenna components. At the same time, accurate evaluation of electrical characteristics necessitates full-wave electromagnetic (EM) analysis, which is CPU intensive, especially for complex systems. As rigorous optimization routines involve repetitive EM simulations, the associated cost may be significant....

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• Reinforcement Learning Algorithm and FDTD-based Simulation Applied to Schroeder Diffuser Design Optimization

  Publikacja

  • A. Kurowski
  • B. Kostek

  - IEEE Access - Rok 2021

  The aim of this paper is to propose a novel approach to the algorithmic design of Schroeder acoustic diffusers employing a deep learning optimization algorithm and a fitness function based on a computer simulation of the propagation of acoustic waves. The deep learning method employed for the research is a deep policy gradient algorithm. It is used as a tool for carrying out a sequential optimization process the goal of which is...

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• Overview of Approaches for Compensating Inherent Metamaterials Losses

  Publikacja

  • B. Esmail
  • S. Kozieł
  • S. Szczepański
  • H. Majid

  - IEEE Access - Rok 2022

  Metamaterials are synthetic composite structures with extraordinary electromagnetic properties not readily accessible in ordinary materials. These media attracted massive attention due to their exotic characteristics. However, several issues have been encountered, such as the narrow bandwidth and inherent losses that restrict the spectrum and the variety of their applications. The losses have become the principal limiting factor...

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• Multiscalar Control Based Airgap Flux Optimization of Induction Motor for Loss Minimization

  Publikacja

  • T. Ayana
  • M. Morawiec
  • L. Wogi

  - IEEE Access - Rok 2024

  Based on the induction motor model, considering the core loss resistance that accounts for magnetic characteristic saturation, a speed control approach is devised with an adaptive full-order (AFO) speed observer. The induction motor model analysis is done sincerely in a stationary reference frame. The control approach incorporates a flux reference generator designed to meet optimal operational circumstances and a nonlinear speed...

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• An Optimized Ka-Band Low Profile Dual-Polarized Transmitarray Antenna With 2D Beam Switching

  Publikacja

  • S. H. Ramazannia Tuloti
  • A. Lamęcki
  • M. Mrozowski

  - IEEE Access - Rok 2024

  This article presents an optimized dual-polarized transmitarray antenna (TA) designed for MIMO applications at the Ka-band, capable of switching beams in two directions. The antenna aperture uses a small unit cell with three layers of Taconic RF-35 dielectric substrates, which can be easily fabricated using PCB technology. The unit cell achieved a 360-degree phase shift and a transmission magnitude exceeding –0.4 dB at 28 GHz....

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• Looking through the past: better knowledge retention for generative replay in continual learning

  Publikacja

  • V. Khan
  • S. Cygert
  • K. Deja
  • T. Trzciński
  • B. Twardowski

  - IEEE Access - Rok 2024

  In this work, we improve the generative replay in a continual learning setting to perform well on challenging scenarios. Because of the growing complexity of continual learning tasks, it is becoming more popular, to apply the generative replay technique in the feature space instead of image space. Nevertheless, such an approach does not come without limitations. In particular, we notice the degradation of the continually trained...

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• Infographics in Educational Settings: A Literature Review

  Publikacja

  • S. A. Bhat
  • S. Alyahya

  - IEEE Access - Rok 2024

  Infographics are visual representations of data that utilize various graphic elements, including pie charts, bar graphs, line graphs, and histograms. Educators and designers can maximize the potential of infographics as powerful educational tools by carefully addressing challenges and capitalizing on emerging technologies. However, current education systems showcase the need for development guidelines and the best practices targeted...

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• Review of Recent Advancement on Nature/Bio-inspired Antenna Designs

  Publikacja

  • F. Azam
  • S. Shah
  • S. Bashir
  • S. Kozieł

  - IEEE Access - Rok 2024

  This article presents an extensive examination of antennas rooted in nature and biology, showcasing their remarkable performance across a wide spectrum of frequencies—from microwave to terahertz. The limitations of traditional antenna design have become increasingly evident in the face of burgeoning demands for novel communication technologies. Conventional analytical-equation-based approaches struggle to deliver the combined performance...

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• Improving Output Performance of the Ultrasonic Multicell Piezoelectric Motor by Development the Multi-Rotor Structure

  Publikacja

  • R. Ryndzionek

  - IEEE Access - Rok 2024

  In recent years, many researches have been carried out on piezoelectric multi-rotor structures. This paper describes the analysis, development and experimental process of an ultrasonic multi-cell piezoelectric motor using a multi-rotor structure. In this design, three independent cells have been integrated into a mechatronic system. Analytical model and finite element method are used for modal and dynamic analysis of the proposed...

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• Comparison of Doppler Effect Estimation Methods for MFSK Transmission in Multipath Hydroacoustic Channel

  Publikacja

  • A. Czapiewska
  • A. Łuksza
  • R. Studański
  • Ł. Wojewódka
  • A. Żak

  - IEEE Access - Rok 2024

  Underwater wireless communication remains a challenging topic, particularly for applications such as wreck penetration where multipath and Doppler effects are very intense. These effects are becoming even more difficult to mitigate for fast data transmission systems that utilize wideband signals. Due to the low propagation speed of acoustic wave in the water, there is a significant difference between the Doppler shift for lower...

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• Bandwidth Dependence of the Propagation Channel in Circular Metallic BAN Environments

  Publikacja

  • M. M. Ferreira
  • F. D. Cardoso
  • S. J. Ambroziak (dawniej: S. Ambroziak)
  • L. M. Correia

  - IEEE Access - Rok 2023

  In this paper, the bandwidth dependence of the propagation channel for Body Area Networks (BANs) in circular metallic environments is addressed and models are proposed to evaluate the appropriate short-term fading margins that should be considered as a function of the system bandwidth. The deployment of BANs in metallic indoor environments, such as ships, factories, warehouses and other similar environments, involves additional...

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• Ontological Modeling for Contextual Data Describing Signals Obtained from Electrodermal Activity for Emotion Recognition and Analysis

  Publikacja

  • T. Zawadzka
  • T. Wierciński
  • W. Waloszek
  • M. Wróbel

  - IEEE Access - Rok 2023

  Most of the research in the field of emotion recognition is based on datasets that contain data obtained during affective computing experiments. However, each dataset is described by different metadata, stored in various structures and formats. This research can be counted among those whose aim is to provide a structural and semantic pattern for affective computing datasets, which is an important step to solve the problem of data...

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• Parallel implementation of a Sailing Assistance Application in a Cloud Environment

  Publikacja

  • M. Życzkowski
  • R. Szłapczyński
  • P. Orzechowski
  • H. Krawczyk

  - IEEE Access - Rok 2023

  Sailboat weather routing is a highly complex problem in terms of both the computational time and memory. The reason for this is a large search resulting in a multitude of possible routes and a variety of user preferences. Analysing all possible routes is only feasible for small sailing regions, low-resolution maps, or sailboat movements on a grid. Therefore, various heuristic approaches are often applied, which can find solutions...

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• Global Complex Roots and Poles Finding Algorithm in C × R Domain

  Publikacja

  • S. Dziedziewicz
  • M. Warecka
  • R. Lech
  • P. Kowalczyk

  - IEEE Access - Rok 2023

  An algorithm to find the roots and poles of a complex function depending on two arguments (one complex and one real) is proposed. Such problems are common in many fields of science for instance in electromagnetism, acoustics, stability analyses, spectroscopy, optics, and elementary particle physics. The proposed technique belongs to the class of global algorithms, gives a full picture of solutions in a fixed region ⊂ C × R and...

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• Miniaturized Inline Bandpass Filters Based on Triple-Mode Integrated Coaxial-Waveguide Resonators

  Publikacja

  • M. Y. Sandhu
  • S. Afridi
  • A. Lamęcki
  • R. Gómez-García
  • M. Mrozowski

  - IEEE Access - Rok 2023

  This work presents a design technique to implement miniaturized cross-coupled bandpass filters in inline physical configurations based on triple-mode resonators. Triple-mode resonances are obtained by using integrated coaxial-waveguide cavity resonators. They consist of two coaxial conducting posts placed in the sidewalls of a rectangular waveguide cavity. In the proposed triplet, a transmission zero (TZ) can be positioned at any...

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• Using Continuous Integration Techniques in Open Source Projects – An Exploratory Study

  Publikacja

  • M. Wróbel
  • J. Szymukowicz
  • P. Weichbroth

  - IEEE Access - Rok 2023

  For a growing number of software projects, continuous integration (CI) techniques are becoming an essential part of the process. However, the maturity of their adoption in open source projects varies. In this paper, we present an empirical study on GitHub repositories to explore the use of continuous integration techniques in open source projects. Following the Goal-Question-Metric (GQM) approach, 3 research questions and 7 metrics...

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• Position and Orientation Estimation in Radio Network With Groups of Locally Synchronized Nodes

  Publikacja

  • J. Sadowski
  • J. Stefański

  - IEEE Access - Rok 2023

  This article presents a positioning system with groups of locally synchronized nodes. A mobile object is equipped with a group of several synchronized receivers that are able to measure the difference in the time of arrival of signals from reference transmitters. The reference transmitters are synchronized only in local groups, with no global synchronization between groups. It is assumed that the synchronous operation of transmitters...

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• Impact of SDN Controller’s Performance on Quality of Service

  Publikacja

  • S. Kaczmarek
  • J. A. Litka (dawniej: J. Litka)

  - IEEE Access - Rok 2024

  Software Defined Networking is a paradigm in network architecture; that is quickly becoming commonplace in modern telecommunication systems. It facilitates network customization for the requirements of different applications and simplifies the implementation of new services. Since its proposal, a significant evolution in its functionality has occurred. However, this development brought along problems of efficiency and performance,...

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• Compact Substrate-Integrated Hexagonal Cavity-Backed Self-Hexaplexing Antenna for Sub-6 GHz Applications

  Publikacja

  • V. Jayaprakash
  • C. Ds
  • R. K. Barik
  • S. Kozieł

  - IEEE Access - Rok 2024

  A self-multiplexing SIW antenna based on hexagonal SIW cavity is proposed. The self-hexaplexing antenna consists of different sizes of resonating elements, which provide the hexaband operations. The antenna resonates at 5 GHz, 5.17 GHz, 5.32 GHz, 5.53 GHz, 5.62 GHz, and 5.72 GHz by employing different slot lengths between the resonating elements. The proposed antenna provides the individual tunable characteristics of the operating...

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• Timber Frame Houses with Different Insulation Materials - Seismic Analysis

  Publikacja

  • M. Szczepański
  • W. Migda
  • R. Jankowski

  - IEEE Access - Rok 2017

  The aim of this article is to present results of a dynamic numerical analysis focused on the response of two timber frame building structures exposed to seismic excitations. The first structure was insulated with mineral wool, while the second one with polyurethane foam. Specifications and technology involved in the models' construction are based on the previously conducted experimental study, upon which numerical structural models...

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• Application of the ISE Optimized Proportional Control of the Wave Maker in a Towing Tank

  Publikacja

  • M. Drzewiecki
  • J. Guziński

  - IEEE Access - Rok 2022

  This paper presents the improvement of the wave maker control system. The wave maker is a facility widely used in hydromechanics laboratories to generate waves in towing tanks. It is equipped with an electrohydraulic drive and an actuator submerged into water. The waves are generated to model the environmental conditions for physical experiments, performed on reduced-scale models of maritime objects. The physical experiments allow...

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