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Search results for: VIRTUAL ENGINEERING OBJECT
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Measurements of Spectral Spatial Distribution of Scattering Materials for Rear Projection Screens used in Virtual Reality Systems
PublicationRapid development of computing and visualisation systems has resulted in an unprecedented capability to display, in real time, realistic computer-generated worlds. Advanced techniques, including three-dimensional (3D) projection, supplemented by multi-channel surround sound, create immersive environments whose applications range from entertainment to military to scientific. One of the most advanced virtual reality systems are CAVE-type...
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Highway engineering risk assessment
PublicationNa drogach krajowych w Polsce rocznie ginie ponad 2000 osób w wypadkach drogowych, co stanowi ponad 37% ogółu ofiar śmiertelnych w wypadkach. Do poprawy stanu bezpieczeństwa na tych drogach muszą byc podjęte działania zmierzające do systematycznego dostosowania poszcz. odcinków dróg do standardów bezpieczeństwa. Jednym z narzędzi pomocnych do wyboru odcinków dróg o największym potencjale mozliwych do uratowania od śmierci uczestników...
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Jubilees of the engineering education in Gdańsk
Publicationz perspektywy obecnej Politechniki Gdańskiej i nawiązując do jej niemieckiej poprzedniczki ukazano 100 lat uniwersyteckiej technicznej edukacji i nauki w Gdańsku z podkreśleniem tła niemiecko-polskich stosunków właściwych dla tego miejsca.
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Ontological engineering versus metaphysics
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Photonics and Web Engineering 2011
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Management of changes in software engineering
PublicationPraca zawiera rozdział poświecony problematyce budowy systemów z bazami wiedzy dla wspomagania procesów zarządzania. W rozdziale tym przedstawiono metody budowy systemów dla potrzeb zarządzania koncentrując uwagę na systemach opartych na wiedzy. Następnie omówiono możliwości zastosowania teorii zbiorów rozmytych do modelowania wiedzy. Na zakończenie przedstawiono przykład wykorzystania zbiorów rozmytych i systemów opartych na wiedzy...
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Segmentation concept in mechanical engineering
PublicationZaprezentowano nowoczesne podejście do rozwiązywania problemów technicznych, technologicznych i organizacyjnych przedsiębiorstwa w oparciu ich strukturyzację. Przedstawiono przykłady segmentcji w stosunku do przedmiotów obrabianych oraz struktur organizacyjnych przedsiębiorstwa.
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Modelling of engineering materials with microstructure
PublicationArtykuł omawia różne modele do opisu lokalizacji odkształceń w postaci rys i stref ścinania w materiałach budowlanych takich jak grunt i beton. Zastosowane modele mechaniki ośrodka ciągłego i modele dyskretne.
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Towards a Lightweight Approach for the Evaluation of Requirements Engineering Impact on Other IT Project Areas
PublicationRequirements Engineering (RE) is recognized as one of the most important, but difficult areas of software engineering, with a significant impact on other areas of the IT project and its final outcome. The empirical studies investigating this impact are hard to conduct, mainly due to large effort required. It is thus difficult for researchers and even more for industry practitioners to make evidence-based evaluations, how decisions...
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ENGINEERING COMPUTATIONS
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Influence of Added Water Mass on Ship Structure Vibration Parameters in Virtual and Real Conditions
PublicationModelling of ship structures in a virtual environment is now standard practice. Unfortunately, many engineers forget to consideri the influence of added water on the frequency values and the amplitude of natural vibrations. The article presents the effect of water damping on the frequency values of the individual natural vibration modes. The tests were carried out in two stages. First, the mentioned values were determined using...
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ASSESSMENT OF CLIFF STABILITY AFTER THE DEMOLITION OF THE ENGINEERING FACILITIES
PublicationAs a part of an experiment, cliff in Gdynia Redlowo (southern coast of Baltic Sea, Gdansk Bay) was measured using terrestrial laser scanner. The main reason for taking up the subject of the Orlowo Cliff’s stability was a decision about controlled removal one of the war fortification elements. The main purpose of that analysis was to specify suitability of laser scanning in determination of slope’s stability after a violent event....
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In Memoriam Professors Marianna Sankiewicz-Budzyński and Gustaw K.E. Budzyński - Founders of the Polish Audio Engineering
PublicationBiography and scientific achievements of Professors Marianna Sankiewicz-Budzyński and Gustaw K.E. Budzyński - Founders of the Polish Audio Engineering.
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Contemporary directions of development in mechanical engineering
e-Learning CoursesPresentation of new ways of development of different specialisations belonging to mechanical engineering
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The Role of Virtual Package Shapes in Digital Product Presentation
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Overview of the Virtual Transcription Laboratory Usage Scenarios and Architecture
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Virtual hearing aid - the computer application for education purposes.
PublicationZrealizowano aplikację komputerową demonstrującą zasady działania aparatów słuchowych. Osoba z dobrym słuchem ma możliwość zapoznania się z problemem niedosłuchu i działaniem aparatu. Aplikacja wyposażona jest w intuicyjny interfejs, który przedstawia elementy aparatu słuchowego na schemacie blokowym z opcjami dotyczącymi źródła dźwięku, typu szumu oraz ustawień aparatu. Aplikacja wzbogacona jest o materiały dydaktyczne, opisujące...
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Ordered multicast protocol based on credited virtual acknowledgment
PublicationPrzedstawiono protokół rozgłaszania dla sieci pakietowych oparty na statystycznym przewidywaniu ruchu aplikacji. Pokazano, że wydajność protokołu zbliżona jest do optymalnej w klasie wykorzystującej potwierdzenia wirtualne.
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Knowledge based virtual organisations for the e-decisional community
PublicationW pracy przedstawiono propozycje modelowania wirtualnych organiozacji opartych na wiedzy w zastosowaniu do budowy elektronicznej spolecznosci decyzyjnej.
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Smart Virtual Product Development (SVPD) System to Support Product Inspection Planning in Industry 4.0
PublicationThis paper presents the idea of supporting product inspection planning process during the early stages of product life cycle for the experts working on product development. Aim of this research is to assist a collaborative product development process by using Smart Virtual Product Development (SVPD) system, which is based on Set of Experience Knowledge Structure (SOEKS) and Decisional DNA (DDNA). The proposed system is developed...
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Optimization of the spindle speed during milling of large-sized structures with the use of technique of Experiment-Aided Virtual Prototyping
PublicationIn the paper are presented considerations concerning vibration suppression problems during milling of large-sized workpieces with the use of innovative method of matching the spindle speed of cutting tool. It depends on repeatable change of the spindle speed value as soon as the optimal vibration state of the workpiece approaches. The values of dominant “peaks” in the frequency spectra and the Root Mean Square (RMS) values of time...
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Artificial intelligence for biomedical engineering of polysaccharides: A short overview
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mechanical engineering education via projects in multibody dynamics
PublicationPraca prezentuje rozważania nad wykorzystaniem interdyscyplinarnych projektów bazujących na zasadach dynamiki układów wieloczłonowych, traktowanych tu jako rozwinięcie kursu klasycznej mechaniki. Celem dydaktycznym jest zebranie w jednym procesie dydaktycznym takich aspektów jak: możliwość wykorzystania poznanych teoretycznie równań do modelowania i analizy znanego mu obiektu rzeczywistego; umożliwienie formułowania i testowania...
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Evidence-Based Risk Management for Civil Engineering Projects Using Bayesian Belief Networks (BBN)
PublicationThe authors are seeking new methods for improving the efficiency of the investments associated with the maintenance and operation of existing civil engineering structures. It is demonstrated how the knowledge about the elements of construction and operation phases and their relationships, combined with monitoring data can be used for more effective management of the risks associated with civil engineering projects. The methodology...
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Electronics for Mechanical Engineering (2023)
e-Learning CoursesName of the course: Electronics (M:32011W0)Specialization: Design and Production Engineering (WM), 1st degree - bachelor/eng., stationary, 2018/2019 - winter semester (currently sem. 4) Number of hours: 30hECTS points: 2 Teacher (lecture/laboratories): Piotr Kurgan
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Karolina Zielińska-Dąbkowska dr inż. arch.
PeopleKarolina M. Zielinska-Dabkowska, Ph.D., Eng. Arch., M. Arch., is an Assistant Professor at the Faculty of Architecture of Gdańsk University of Technology (GUT). In 2002, she completed her studies of Architecture and Urban Planning at Gdańsk University of Technology (Gdańsk Tech) and in 2004, Architectural Engineering at the University of Applied Sciences and Arts (HAWK) in Hildesheim, Germany. After graduation, she worked for several...
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Trustworthiness and Subversion in Large Service- Oriented Multi-Agent Systems under Virtual Anonymity and Blind Provider Selection
PublicationTo 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...
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THE COST ANALYSIS OF CORROSION PROTECTION SOLUTIONS FOR STEEL COMPONENTS IN TERMS OF THE OBJECT LIFE CYCLE COST
PublicationSteel materials, due to their numerous advantages - high availability, easiness of processing and possibility of almost any shaping are commonly applied in construction for carrying out basic carrier systems and auxiliary structures. However, the major disadvantage of this material is its high corrosion susceptibility, which depends strictly on the local conditions of the facility and the applied type of corrosion protection system....
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[ILiT, IŚGiE] Mathematical methods in engineering
e-Learning Courses{mlang pl} Dyscyplina: inżynieria lądowa i transport; inżynieria środowiska, górnictwo i energetyka Zajęcia obowiązkowe dla doktorantów I i II roku Prowadzący: dr inż. Roger Sauer, prof. PG Liczba godzin: 15 Forma zajęć: wykład {mlang} {mlang en} Discipline: civil engineering and transport; environmental engineering, mining and power engineering Obligatory course for 1st and 2nd-year PhD students Academic teacher: dr...
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Testing HIADAC high impedance analyzer in Trento University laboratory on "unknown" object using 2-wire probe
Open Research DataThe dataset presents impedance spectrum of "black-box" object with interesting phase characteristics. This object was used to test high-impedance analyzer for diagnostic of anticorossion coatings (HIADAC) realized in the frame of Eureka project E!3174. The impedance spectrum frequency range (1 Hz – 100 kHz) was selected in order to test the whole measureement...
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Recent advances in rapid multiobjective optimization of expensive simulation models in microwave and antenna engineering by Pareto front exploration
PublicationPractical engineering design problems are inherently multiobjective, that is, require simultaneous control of several (and often conflicting) criteria. In many situations, genuine multiobjective optimization is required to acquire comprehensive information about the system of interest. The most popular solution techniques are populationbased metaheuristics, however, they are not practical for handling expensive electromagnetic...
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Virtual Space Vector Pulse Width Modulation Algorithm for Three-Level NPC Converters Based on the Final Element Shape Functions
PublicationThe paper puts forth a novel idea for the computation of Nearest Three Virtual Space Vector Pulse Width Modulation for the three level NPC converters. The computations are based on the concept of final element shape function widely used in the domain of finite element analysis. The proposed approach significantly frees the computations from the use of trigonometric functions, which simplifies the computations and permits easier...
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Optimizing Construction Engineering Management Using Metaheuristic Methods and Bayesian Networks
PublicationThe construction of buildings invariably involves time and costs, and disruptions impact ongoing construction projects. Crisis situations in management strategies, structural confusion, and finan-cial miscalculations often arise due to misguided decision-making. This article proposes a method that combines the learning of Bayesian Networks and heuristic techniques to optimize deci-sion-making processes in construction scheduling....
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Adam Dąbrowski dr inż.
PeopleAdam Dabrowski has obtained a PhD in mechanical engineering from Gdańsk University of Technology and MSc. degree in mechatronics from Technische Universität Hamburg. He has an industry experience in Institute of Aviation Engineering Design Center (Warsaw, Poland) and SICK AG (Hamburg, Germany). Additionally, as an assistant at Gdansk University of Technology he teaught courses on mechanics, space mechanisms and dynamics of space...
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Urban and Road Engineering - Smolnicki
e-Learning CoursesLectures about "Urban and Road Engineering", dedicated to sixth semester of the English-speaking group, will be conducted in a way that activates students. Lectures on Road Engineering cover a wide range of important issues related to the subject, starting from a discussion of the historical circumstances of the creation, development and domination of the contemporary conventional model, through identifying new approaches and...
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Microporous Polyurethane Thin Layer as a Promising Scaffold for Tissue Engineering
PublicationThe literature describes that the most efficient cell penetration takes place at 200–500 µm depth of the scaffold. Many different scaffold fabrication techniques were described to reach these guidelines. One such technique is solvent casting particulate leaching (SC/PL). The main advantage of this technique is its simplicity and cost efficiency, while its main disadvantage is the scaffold thickness, which is usually not less than...
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Performance evaluation of the parallel object tracking algorithm employing the particle filter
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The Body as an Object of Stigmatization in Cultures of Guilt and Shame: A Polish–Vietnamese Comparison
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Evolutionary - fuzzy hybrid system of steering the moveable object in dynamic environment
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OF-FEMEA: an approach to safety analysis of object oriented software intensive systems.
PublicationArtykuł przedstawia rozszerzenie metody FMEA znanej z jej zastosowań w stosunku do systemów związanych z bezpieczeństwem, w sposób umożliwiający jej stosowanie do systemów zawierających oprogramowanie i budowanych zgodnie z podejściem obiektowym. Punktem wyjścia dla metody są modele współpracy wyrażone w notacji UML. Komponenty systemu są modelowane z zastosowaniem notacji formalnej CSP. Metoda wspomaga systematyczną identyfikacje...
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Modular machine learning system for training object detection algorithms on a supercomputer
PublicationW pracy zaprezentowano architekturę systemu służącego do tworzenia algorytmów wykorzystujących metodę AdaBoost i służących do wykrywania obiektów (np. twarzy) na obrazach. System został podzielony na wyspecjalizowane moduły w celu umożliwienia łatwej rozbudowy i efektywnego zrównoleglenia implementacji przeznaczonej dla superkomputera. Na przykład, system może być rozszerzony o nowe cechy i algorytmy ich ekstrakcji bez konieczności...
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EXPERIMENTAL ANALYSIS OF CONNECTION BETWEEN OBJECT-ORIENTED METRICS AND SOFTWARE CHANGEABILITY
PublicationFor the purpose of video surveillance software quality assessment in this work the ISO/IEC-9126 norm was used with a particular focus on maintainability of the software system. The paper presents a study on the connection between software metrics derived from the static analysis of the source code and changeability of the video surveillance software system. It is shown that meeting requirements of software quality metrics may result...
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A family of new generation miniaturized impedance analyzers for technical object diagnostics
PublicationThe paper presents the family of three analyzers allowing to measure impedance in range of 10 ohm<|Zx|<10 Gohm in a wide frequency range from 10 mHz up to 100 kHz. The most important features of the analyzers family are: miniaturization, low power consumption, low production cost, telemetric controlling and the use of impedance measurement method based on digital signal processing DSP. The miniaturization and other above mentioned...
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Fabrication of polyurethane and polyurethane based composite fibers by the electrospinning technique for soft tissue engineering of cardiovascular system
PublicationElectrospinning is the unique technique, which provides forming of polymeric scaffolds for soft tissue engineering, which include tissue scaffolds for soft tissues of cardiovascular system. Such artificial soft tissues of cardiovascular system may possess mechanical properties comparable to native vascular tissues. Electrospinning technique gives the opportu nity to form fibres with nm- to μm-scale in diameter. The arrangement...
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How to enhance perception of reassembled but incomplete works of ancient art? Eye-tracking study of virtual anastylosis.
Publicationn 1964 the Venice Charter described anastylosis as the only acceptable method of reassembly of architectural remains. Although the scientific community has agreed with the Charter’s decision, many questions pertaining to the technical and aesthetic aspects of anastylosis remain unanswered. Virtual anastylosis seems one of the most promising digital solutions to finding at least some answers, as it permits testing various solutions...
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Recycled Polyethylene terephthalate (PET) as Construction Material in Civil Engineering: A Review
PublicationIn general, the quantity of plastics of all types consumed annually all over the world has been growing in a phenomenal way. The manufacturing processes, service industries and municipal solid wastes (MSW) generate numerous waste plastic materials. The increasing awareness about the environment has tremendously contributed to the concerns related with disposal of the generated wastes. It is believed that the management of solid...
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The geodetic monitoring of the engineering structure – a practical solution of the problem in 3D space
PublicationThe study raises the issues concerning the automatic system designed for the monitoring of movement of controlled points, located on the roof covering of the Forest Opera in Sopot. It presents the calculation algorithm proposed by authors. It takes into account the specific design and location of the test object. High forest stand makes it difficult to use distant reference points. Hence the reference points used to study the stability...
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Mirosław Wołoszyn dr hab. inż.
PeopleMirosław Wołoszyn born in 1963 in Gdynia. He received the M.Sc. degree in 1987, the Ph.D. degree in 1997, and the D.Sc. (‘habilitation’) degree in 2013, all from the Gdańsk University of Technology. Since 1987 he has been with the above university, where he is currently Associate Professor of Electrical Engineering. His research interests include localization and identification of ferromagnetic objects by means of the magnetometric...
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Engineering a de Novo Transport Tunnel
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Modal diagnostics of civil engineering structures.
PublicationKsiążka dotyczy zastosowania analizy modalnej do diagnostyki konstrukcji budowlanych.