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1
Content available remote Budowa egzoszkieletu kończyny górnej sterowanego za pomocą dwuosiowego sensora o dużej sztywności
100%
Jankowski J.
Mechanik
|
2019
|
tom R. 92, nr 8-9
565--567
PL
Opisano budowę funkcjonalnego modelu egzoszkieletu prawej kończyny górnej. Zaprezentowano kluczowe podzespoły, takie jak napędy, zasilanie czy stelaż. Opisano kinematykę mechanizmu. Opracowywany egzoszkielet jest sterowany za pomocą joysticka o dużej sztywności, wykonanego z zespołu tensometrów, i umożliwia intuicyjne prowadzenie efektora przez użytkownika.
EN
The work describes the construction of a functional exoskeleton model of the right upper limb. Information on the key components used, i.e. drives, power supply and rack, is included. The kinematics of the mechanism are described. The developed exoskeleton is controlled by a special joystick with high rigidity made of two strain gauge sensors and allows the user to intuitively guide the effector.
2
Content available remote Badawczo-szkoleniowy symulator jazdy samochodem o masie do 3,5 t dla osób z niepełnosprawnością ruchową
100%
Jankowski J.
Mechanik
|
2019
|
tom R. 92, nr 8-9
571--573
PL
W artykule omówiono kontynuację prac związanych z tworzeniem symulatora jazdy samochodem o masie do 3,5 t, zaadaptowanego do wybranych niepełnosprawności. Artykuł zawiera opis opracowanej ruchomej platformy o sześciu stopniach swobody i kokpitu. W celu zapewnienia możliwości kierowania symulatorem przez jak najszerszą grupę osób z niepełnosprawnościami ruchowymi zaimplementowano wybrane urządzenia wspomagające. Można je łatwo zdemontować w celu testowania innych rozwiązań. Platforma wraz z kokpitem jest kontrolowana z poziomu aplikacji symulatora, a obraz prezentowany jest uczestnikowi symulacji w okularach projekcyjnych 3D oraz – opcjonalnie – na trójsegmentowym ekranie.
EN
he article presents the continuation of work related to the creation of a car driving simulator with a weight of up to 3.5 tons adapted to selected disabilities. The article contains a description of the developed motion platform with six degrees of freedom and the cockpit. In order to ensure the possibility of being managed by the largest group of people with physical disabilities, selected support solutions were implemented. These devices can be easily dismantled to test others. The platform together with the cockpit is controlled from the simulator application and the image is presented to the simulation participant in 3D projection glasses and optionally on a three-segment screen.
3
Content available A Comparison of Methods of Controlling the Movement of an Exoskeleton, Supporting Movements of the Upper Limb Using Signals of Muscle Activity and Manual Controls
63%
Jankowski J. , Łach P.
Problemy Mechatroniki : uzbrojenie, lotnictwo, inżynieria bezpieczeństwa
|
2020
|
tom Vol. 11, Nr 3 (41)
19--32
EN
The paper presents the research methodology and the analysis of the results of the comparison test of two methods of controlling the exoskeleton of the upper limb using signals of muscle activity and manual control devices. The results show the advantage of the joystick method over EMG in terms of usability, task execution time, ease of use and comfort.
PL
W pracy przedstawiono metodykę badawczą oraz analizę wyników testu porównania dwóch metod sterowania egzoszkieletem kończyny górnej wykorzystującą sygnały o aktywności mięśni i manualne urządzenia sterownicze. Wyniki pokazują przewagę metody wykorzystującej joystick nad EMG w aspekcie użyteczności, czasu wykonywania zadania, łatwości użytkowania oraz komfortu.
4
Content available remote Dynamic SITCOM: an innovative approach to re-identify social network evaluation models
63%
Kizielewicz B. , Jankowski J.
Annals of Computer Science and Information Systems
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2023
|
tom Vol. 35
1023--1027
EN
Complex networks attract attention in various scientific fields due to their ability to model real world phenomena and potential for problem-solving. It is essential to evaluate these networks to simulate and solve various issues. Evaluating social networks is challenging due to the unequal status of nodes and their unknown impact on everall characteristics. Existing measures of centrality often need to consider the global structure of the network, which requires the involvement of experts and creates space for multi-criteria decision-making methods usage. Unfortunately, more access to established decision-making models is often needed for various reasons. In this article, we propose an innovative approach called Dynamic SITCOM, which considers the preferences of characteristic objects and the characteristic values of criteria, enabling the re-identification of multi-criteria decision models. The approach evaluates nodes in Facebook's complex social network, focusing on prediction accuracy using similarity measures and mean absolute error. The study shows that a stable decision model can be created and applied to evaluate nodes in complex networks.
5
Content available Dobór języka reprezentacji wiedzy w ontologiach dziedzinowych
51%
Ziemba P. , Jankowski J. , Wolski W.
Informatyka Ekonomiczna
|
2015
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nr 1(35)
84-100
EN
The article discusses the problem of knowledge representation language selection for domain ontologies. In the article the use of ontology as a tool of knowledge representation was presented and the analysis of logical formalisms such as frames, logic programs, description logic, first-order logic and common logic was carried out. Then a number of classic and markup based knowledge representation languages were analysed: Ontolingua, LOOM, OCML, FLogic, SHOE, RDF(S), OWL, OWL2. Based on the analysis of literature relationships and dependencies between versions and profiles of the OWL language were systematised. The article ends with the conclusion, according to which OWL 2 DL language is the most expressive language of retaining decidability, and therefore it is characterized by the highest applicability in the construction of domain ontologies allowing inference.
6
Content available remote Improving the Performance of Multiscene Marketing Video Content through its Dynamics Adjustments
51%
Fornalczyk K. , Bortko K. , Disterheft A. , Jankowski J.
Annals of Computer Science and Information Systems
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2023
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tom Vol. 35
967--972
EN
The use of online video content plays a vital role in marketing strategies and is a significant component of internet usage. The challenge lies in evaluating the impact of video content on user engagement and finding ways to enhance its performance without employing techniques that overwhelm users or prompt ad avoidance behavior. This study investigates the correlation between video dynamics metrics and eye-tracking patterns to determine if user engagement, as indicated by fixations, is influenced by these metrics. The findings demonstrate that dynamic metrics can accurately predict eye-tracking patterns for brief videos and can be applied to measure both inter and intra-scene dynamics in multiscene videos.
7
Content available remote MLP-COMET-based decision model re-identification for continuous decision-making in the complex network environment
51%
Kizielewicz B. , Więckowski J. , Jankowski J.
Annals of Computer Science and Information Systems
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2023
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tom Vol. 35
591--602
EN
In recent years, complex networks have gained significant attention for their practical potential in data analysis and decision-making. However, assessing node relevance in complex networks poses challenges, including subjectivity and difficulty reproducing criteria relationships. To address these issues, we propose MLP-COMET. This novel approach combines the Multi-Layer Perceptron (MLP) with the Characteristic Objects Method (COMET) in Multi-Criteria Decision Analysis (MCDA). MLP-COMET aims to re-identify decision models using MLP to evaluate characteristic objects. We evaluate the approach to assessing the complex network and demonstrate its effectiveness in evaluating without heavy reliance on domain experts. The MLP-COMET performance is evaluated through ranking comparisons, showing a strong correlation with reference expert rankings. We also analyze the impact of training sample size and number of characteristic objects on ranking similarity, observing high stability and similarity using the $r\_w$ metric. MLP-COMET offers an effective and reliable tool for evaluating complex networks and facilitating decision-making processes.
8
Content available remote Multi-criteria approach to viral marketing campaign planning in social networks, based on real networks, network samples and synthetic networks
51%
Karczmarczyk A. , Jankowski J. , Wątróbski J.
Annals of Computer Science and Information Systems
|
2019
|
tom Vol. 18
663--673
EN
Spreading of information within social media and techniques related to viral marketing take more and more attention from companies focused on targeting audiences within electronic systems. Recent years resulted in extensive research centered around spreading models, selection of initial nodes within networks and identification of campaign characteristics affecting the assumed goals. While social networks are usually based on complex structures and high number of users, the ability to perform detailed analysis of mechanics behind the spreading processes is very limited. The presented study shows an approach for selection of campaign parameters with the use of network samples and theoretical models. Instead of processing simulations on large network, smaller samples and theoretical networks are used. Results showed that knowledge derived from relatively smaller structures is helpful for initialization of spreading processes within the target network of larger size. Apart from agent based modeling, multi-criteria methods were used for evaluation of results from the perspective of costs and performance.
9
Content available Określanie objętości przestrzeni powietrznych pod odzieżą z wykorzystaniem techniki skanowania 3D - studium przypadku
51%
Młynarczyk M. , Jankowski J. , Orysiak J.
Bezpieczeństwo Pracy : nauka i praktyka
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2022
|
tom nr 8
17-21
PL
Stopień dopasowania odzieży do ludzkiego ciała ma wpływ na jej izolacyjność cieplną i tym samym - na poziom jej ciepłochronności. Określenie całkowitej objętości przestrzeni powietrznych pod odzieżą za pomocą techniki skanowania 3D może dostarczyć informacji przydatnych w ocenie dopasowania tej odzieży. W artykule przedstawiono sposób pomiaru przestrzeni powietrznych pod odzieżą z wykorzystaniem wspomnianej techniki oraz omówiono zależność między rozmiarem odzieży a stopniem jej dopasowania do sylwetki człowieka.
EN
The degree of fit of the clothes to the human body affects its thermal insulation. The determination of the total volume of air spaces underneath clothing by means of a 3D scanning technique can provide information useful in assessing the fit of clothing. The article presents the method of measuring the air spaces underneath clothing with the use of the aforementioned technique and discusses the relationship between the size of the clothing and the degree of its fit to the human body.
10
Content available Impact of Clothing Size on Thermal Insulation – A Pilot Study
51%
Młynarczyk M. , Orysiak J. , Jankowski J. , Prus P.
Fibres & Textiles in Eastern Europe
|
2023
|
tom Vol. 31, no. 1
1--8
EN
Thermal insulation may be influenced by the size of clothing and thus the volume of air gaps. The aim of this study was to determine the relationship between the size of outer wear clothing, and thus the indirect fit (the volume and size of air gaps), and thermal insulation in static and dynamic conditions. A set of underwear and two types of outerwear for workers of the energy sector and the chemical industry were selected for the study. Results showed that the value of thermal insulation (regardless of the type of outerwear) first increased with increasing clothing size.
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