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Search results for: EAL
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Real-Time Aerial Mapping by Image Features Extraction and Matching
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Composite as a Material of the Future in the Era of Green Deal Implementation Strategies
PublicationComposite materials have become synonymous with modernity, desired in nearly every aspect of our daily lives, from simple everyday objects to sanitary facilities, pipelines, the construction of modern sewer networks, their renovation, water supply, and storage reservoirs, to complex structures—automotive, planes, and space science. Composites have seen a considerable rise in attention owing to their characteristics, durability,...
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On various modelling approaches to real-time visualisation of blood flow
PublicationThis paper reviews various modelling approaches to real-time visualisation of blood flow. These include classic, macroscale approach based on the momentum conservation equation together with a proper constitutive equation. Moreover, modern micro- and mesoscale approaches, such as molecular dynamics and dissipative particle dynamics, are discussed. Advantages and disadvantages of the discussed methods are highlighted with particular...
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Specific detection of Alternaria alternata by PCR and real-time PCR
PublicationFungi of Alternaria genus are cosmopolitan organisms, which spores can be found in the air, soil, water, clothing and food. They commonly occur as saprotrophs on the plant remains, contributing to the decomposition of organic matter. Additionally, they are components of the normal human and animal skin flora. Alternaria spp. are also known human allergens, causing hay fever and allergic reactions that can lead to the development...
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Detekcja stanu zakotwienia pręta za pomocą fal sprężystych
PublicationW pracy przedstawiono wstępne wyniki badań eksperymentalnych i obliczeń nu-merycznych mających na celu określenie możliwości oceny stanu zakotwienia pręta stalowego w materiale kompozytowym typu zaprawa. Badanym obiektem był pręt stalowy osadzony w zaprawie o kształcie prostopadłościennym. Analizie poddano pręt stalowy otoczony zaprawą na trzech różnych długościach oraz pręt stalowy swobodny. W jednym z modeli dokonano uszkodzenia...
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MODERNIZACJA KASKADOWEGO UKŁADU REGULACJI WYWOŁYWACZA FAL BASENU MODELOWEGO
PublicationArtykuł opisuje modernizację stanowiska badawczego w Centrum Techniki Okrętowej (CTO) S.A. – głębokowodnego basenu modelowego z płytowym wywoływaczem fal z płytą mocowaną powyżej dna basenu na pojedynczym przegubie. Modernizacja obejmowała zastąpienie oryginalnego analogowego układu regulacji nowoczesnym cyfrowym układem sterowania, opartym na 8-bitowym mikrokontrolerze AVR. Na podstawie dokonanej identyfikacji poprzedniego układu...
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Transformation of the Perpetual Usufruct Right Into the Ownership of a Real Property Estate
PublicationIn addition to the ownership, there is in Poland the so-called perpetual usufruct right, which is an intermediate form between ownership and limited property rights. It allows for long-term use of the land which is not our ownership. Makes it possible to mortgage a property, is transferable and inheritable. The article describes the legal regulations governing the establishment and functioning of the perpetual usufruct, and the...
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Relationships and bioaccumulation of chemical elements in the Baikal seal (Phoca sibirica)
PublicationOznaczono stężenia w próbkach wątroby foki bajkalskiej, planktonu i zoobentosu ryb stanowiących źródło pokarmu dla fok. Badania przeprowadzono z wykorzystaniem technik ICP-MS oraz ICP-AES. Zbadano wpływ czynników wewnętrzynch i zewnętrznych (środowiskowych) na proces bioakumulacji z wykorzystaniem technik wielowymiarowych (ANOVA, analiza czynników) oraz analizy korelacyjnej. Stwierdzono istotny wpływ płci oraz wieku na proces akumulacji...
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Bal Sportowca Politechniki Gdańskiej
Events.
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Ryszard S. Romaniuk profesor
PeopleProfessor of Electronics, Computer and Communications Engineering at Warsaw University of Technology, Poland; Eisenhower Fellow, Philadelphia, MA USA; SPIE Fellow, Bellingham, WA USA; Editor-in-Chief, International Journal of Electronics and Telecommunications, Polish Academy of Sciences; Photonics Spectra Magazine, EAB Member;
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Comparison of Methods for Real and Imaginary Motion Classification from EEG Signals
PublicationA method for feature extraction and results of classification of EEG signals obtained from performed and imagined motion are presented. A set of 615 features was obtained to serve for the recognition of type and laterality of motion using 8 different classifications approaches. A comparison of achieved classifiers accuracy is presented in the paper, and then conclusions and discussion are provided. Among applied algorithms the...
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Research of electric drive systems with real time software configurable control
PublicationПредмет исследования. Представлен учебно-лабораторный стенд для исследования систем управления элек- троприводами. Стенд используется для обучения студентов системам управления электроприводами и предна- значен для повышения эффективности усвоения материала. Метод. В основу предлагаемого решения положен метод взаимного нагружения электрических машин, питаемых от силовых преобразователей с общим звеном постоянного тока. Это позволяет...
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Real and Virtual Instruments in Machine Learning – Training and Comparison of Classification Results
PublicationThe continuous growth of the computing power of processors, as well as the fact that computational clusters can be created from combined machines, allows for increasing the complexity of algorithms that can be trained. The process, however, requires expanding the basis of the training sets. One of the main obstacles in music classification is the lack of high-quality, real-life recording database for every instrument with a variety...
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Epigenetic inhibitor zebularine activates ear pinna wound closure in the mouse
PublicationBackground:Most studies on regenerative medicine focus on cell-based therapies and transplantations.Small-molecule therapeutics, though proved effective in different medical conditions, have not been extensivelyinvestigated in regenerative research. It is known that healing potential decreases with development and devel-opmental changes are driven by epigenetic mechanisms, which suggests epigenetic repression of regenerativecapacity.Methods:We...
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Disk space allocation schemes for real-time data gathering applications
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Four-node semi-EAS element in six-field nonlineartheory of shells
PublicationW pracy sformułowano 4-węzłowy powłokowy element skończony dla konstrukcji powłokowych. Element opracowano w ramach nieliniowej 6-parametrowej teorii powłok z niesymetrycznymi miarami odkształceń membranowych. Kinematyka powłoki jest opisana przez dwa pola: translacji i obrotów, przy czym wszystkie trzy parametry obrotu traktowane są jako niezależne. W wyniku tego sformułowany element nadaje się do analizy struktur powłokowych...
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Using a computational model to compare objective negotiations in real and virtual environments
PublicationZaprezentowano obliczeniowy model negocjacji uwzględniający warunki początkowe, przebieg negocjacji i wyniki negocjacji. Przedstawiono komputerowy system wspomagający rejestrację przebiegu negocjacji i ich wyników oraz analizę negocjacji zgodną z proponowanym modelem.
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Enterotoxigenic Potential of Coagulase-Negative Staphylococci from Ready-to-Eat Food
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BOUNDARIES IN THE REAL ESTATE CADASTRE – ESTABLISHMENT OF BOUNDARIES IN THE LAND AND BUILDING RECORDS
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Diagnostyka konstrukcji ramowych i płytowych za pomocą fal sprężystych
PublicationTematem niniejszej pracy są symulacje numeryczne i badania eksperymentalne propagacji fal w układach ramowych oraz płytowych. Symulacje numeryczne propagacji fal przeprowadzono metodą elementów spektralnych w dziedzinie czasu. W przeprowadzonych badaniach eksperymentalnych fala została wzbudzona przy użyciu wzbudnika piezoelektrycznego, natomiast pomiar prędkości fali wykonany został bezstykowo za pomocą wibrometru laserowego....
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Comparison of a tribological model and real component test methods for lubricated contacts
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Experiments and numerical modeling of meat and bone meal pyrolysis in a rotary kiln
PublicationThe paper presents aspects of modelling the pyrolysis of meat and bone meal (MBM) in a rotary kiln. The pyrolysis of MBM produces a solid fraction which can be used as a fuel, a liquid fraction with potential chemical applications and a low heating value gas. The meat and bone meal pyrolysis was carried out at the temperature of 900 oC. Main features of experiments and numerical model of the pyrolysis were described. The model...
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A non-uniform real-time speech time-scale stretching method
PublicationAn algorithm for non-uniform real-time speech stretching is presented. It provides a combination of typical SOLA algorithm (Synchronous Overlap and Add ) with the vowels, consonants and silence detectors. Based on the information about the content and the estimated value of the rate of speech (ROS), the algorithm adapts the scaling factor value. The ability of real-time speech stretching and the resultant quality of voice were...
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Performance Measurements of Real Time Video Transmission from Car Patrol
PublicationThe HSUPA technology application to video streaming from moving vehicle to the central server is presented in the paper. A dedicated software for transmission control in case of non public IP address is employed. Quality of video streaming in urban area was measured. Several car routes were investigated in the area of the Polish Tricity. Measurements pointed out that the real time streaming quality during vehicle movement is sufficient...
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Workstation for training asw helicopter navigators and analysis real flight data
PublicationW artykule opisane zostało stanowisko szkoleniowo-diagnostyczne i analizy danych skonstruowane z przeznaczeniem dla nawigatorów śmigłowców ASW eksploatowanych w polskiej Marynarce Wojennej i zainstalowane w bazie śmigłowców. Umożliwia ono prowadzanie szkoleń i treningów w zakresie eksploatacji oraz wykonywanie analiz informacji zebranych przez nawigatorów podczas lotów z pokładowego sonaru ASW, odbiornika sygnałów z sonoboi i...
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Comparison of Aging Simulation to Real Aging of Silicone Self-adhesives Tapes
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Numerical Model of the Aortic Valve Implanted Within Real Human Aorta
PublicationCardiovascular system diseases are the main cause of deaths in developed and developing countries. The main reasons are myocardial infarction, heart failure, stroke and valvular diseases. These are caused mainly by arteriosclerosis. The valvular diseases involve a significant burden for the health care system and their frequency is rising with the patient age. This work describes the tools and numerical models appropriate for modeling...
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Prediction of Processor Utilization for Real-Time Multimedia Stream Processing Tasks
PublicationUtilization of MPUs in a computing cluster node for multimedia stream processing is considered. Non-linear increase of processor utilization is described and a related class of algorithms for multimedia real-time processing tasks is defined. For such conditions, experiments measuring the processor utilization and output data loss were proposed and their results presented. A new formula for prediction of utilization was proposed...
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Comparative Analysis of Reactive Power Compensation Devices in a Real Electric Substation
PublicationA constant worldwide growing load stress over a power system compelled the practice of a reactive power injection to ensure an efficient power network. For this purpose, multiple technologies exist in the knowledge market out of which this paper emphasizes the usage of the flexible alternating current transmission system (FACTS) and presents a comparative study of the static var compensator (SVC) with the static synchronous compensator...
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Cross-Platform Real-Time Nuclear Reactor Basic Principle Simulator
PublicationAbstract—In the paper several approaches to building the real-time basic principle simulators of nuclear reactor processes are presented and their characteristics are analyzed. The characteristics of developed simulators for MATLAB/Simulink including their limitations, and the idea of a cross-platform simulator independent of specific hardware or software are presented. Mathematical models of selected nuclear reactor’s processes...
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Modelowanie propagacji fal sprężystych w węzłach spawanych konstrukcji stalowych
PublicationCelem pracy było wykonanie numerycznych modeli spawanych węzłów konstrukcji stalowych poddanych krótkotrwałym sinusoidalnym wzbudzeniom o wysokich częstotliwościach rzędu 100-200 kHz, symulujących propagację fal sprężystych w ciałach stałych oraz opracowanie wskaźnika pozwalającego na ocenę ewentualnych uszkodzeń występujących w węźle konstrukcji. Model numeryczny opracowano przy użyciu metody elementów skończonych. Jako przykład...
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Propagacja fal w kotwach gruntowych: zastosowanie w wykrywaniu uszkodzeń.
PublicationTematem referatu są badania eksperymentalne i obliczenia numeryczne dotyczące propagacji fal sprężystych w kotwach gruntowych. Badania są ukierunkowane na nieniszczącą diagnostykę kotwi skalnych i gruntowych, gdzie z racji charakteru pracy takiego elementu, ocena jego stanu jest utrudniona. Głównym celem badań jest uzyskanie podstawowych informacji na temat stanu technicznego elementu konstrukcyjnego, ewentualnych zniszczeń otuliny...
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Performance Modeling and Prediction of Real Application Workload in a Volunteer-based System
PublicationThe goal of this paper is to present a model that predicts the real workload placed on a volunteer based system by an application, with incorporation of not only performance but also availability of volunteers. The application consists of multiple data packets that need to be processed. Knowing the computational workload demand of a single data packet we show how to estimate the application workload in a volunteer based system. Furthermore,...
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Real-time PCR approach in dermatophyte detection and Trichophyton rubrum identification
PublicationDermatophytes are keratinophilic molds that infect human hair, nails and skin. Diagnosis of dermatophytosis is based on morphological, serological and biochemical features. However, identification is difficult and laborious due to similarities between microorganisms. Thus, there is considerable interest to develop mycological diagnostic procedures based on molecular biology methods. In this study, fast, two-step DNA extraction...
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How to deal with knowledge in small companies? Defining emergent KM approach
PublicationThis paper examines the concept of emergent KM approach in small companies. The origins of consideration are grounded in the theory of strategic management literature and in particular in the distinction between deliberate versus emergent approach towards strategic planning. Using the methodology of case study, we carried out an explorative research to analyse the characteristics of KM approach in two small companies located in...
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Wykorzystanie propagacji fal sprężystych w ocenie efektywnej długości zakotwienia
PublicationW pracy przedstawiono wyniki analizy numerycznej dotyczącej propagacji fal w prętach otulonych materiałem kompozytowym.
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MODELOWANIE TŁUMIENIA FAL RADIOWYCH W NIETYPOWYCH OTWARTYCH ŚRODOWISKACH PROPAGACYJNYCH
PublicationW referacie przeanalizowano trzy sposoby modelowania tłumienia propagacyjnego w nietypowych otwartych środowiskach propagacyjnych. Porównano dokładność estymowania tłumienia fal radiowych w przykładowym nietypowym środowisku propagacyjnym, przy użyciu trzech różnych modeli propagacyjnych.
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Real-Time Bleeding Detection in Gastrointestinal Tract Endoscopic Examinations Video
PublicationThe article presents a novel approach to medical video data analysis and recognition of bleedings. Emphasis has been put on adapting pre-existing algorithms dedicated to the detection of bleedings for real-time usage in a medical doctor’s office during an endoscopic examination. A real-time system for analyzing endoscopic videos has been designed according to the most significant requirements of medical doctors. The main goal of...
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CMOS implementation of an analogue median filter for image processing in real time
PublicationAn analogue median filter, realised in a 0.35 μm CMOS technology, is presented in this paper. The key advantages of the filter are: high speed of image processing (50 frames per second), low-power operation (below 1.25 mW under 3.3 V supply) and relatively high accuracy of signal processing. The presented filter is a part of an integrated circuit for image processing (a vision chip), containing: a photo-sensor matrix, a set of...
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THE ART OF VIRTUAL INFORMATION EXCHANGE AND ITS INFLUENCE ON REAL CITY SPACE
PublicationThe paper investigates the impact of the new genres of contemporary public art based on the virtual information exchange in real spaces of the cities. On the basis of theoretical approaches, trans-disciplinary surveys and case studies, the paper focuses on the art that not only relies on the technological support but also refers to the new public sphere, where people are co-creators of the art object giving their personal input...
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Real-time facial feature tracking in poor quality thermal imagery
PublicationRecently, facial feature tracking systems have become more and more popular because of many possible use cases. Especially in medical applications location of the face and facial features are very useful. Many researches have presented methods to detect and track facial features in visible light. However, facial feature analysis in thermography may also be very advantageous. Some examples of using infrared imagery in medicine include...
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MODAL ANALYSIS OF REAL TIMBER FRAME HOUSES WITH DIFFERENT INSULATION MATERIALS
PublicationThe aim of this article is to present the results of a numerical modal analysis of two actual structures of timber frame buildings and the different behaviour due to the used insulation material. One model of the timber structure was filled with mineral wool, while the other with polyurethane foam. During the modal analysis, eigenvalues for both models have been determined. The results of the analysis clearly show the increase...
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Badania oddziaływań fal o dużej amplitudzie dla przetwornika pierścieniowego.
PublicationRozważano zjawisko oddziaływań fal o dużej amplitudzie dla przetwornika pierścieniowego. Przedstawiono model matematyczny i wyniki badań teoretycznych.Do modelowania zjawiska zastosowano równania KZK. Rozwiązania zagadnienia poszukiwano wewnątrz stożka ściętego.
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Radiofonia cyfrowa w zakresach fal długich, średnich i krotkich.
PublicationPrzedstawiono nowy system radiofonii cyfrowej opracowany przez międzynarodowe konsorcjum pod nazwą Digital Radio Mondiale (DRM), który został oficjalnie zaprezentowany w r. 2003. System jest przystosowany do naziemnej emisji sygnałów w zakresie częstotliwości poniżej 30 MHz i uzyskał standaryzację w ramach ETSI. Można się spodziewać, że w niedługim czasie zastąpi analogową radiofonię z modulacją amplitudową. Omówiono założenia...
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Journal of Al-Tamaddun
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Pensamiento al Margen
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Damage detection in elements of strutures by the elastic wave propagation method.
PublicationW pracy przedstawiono wyniki badań dotyczace wykorzystania fal sprężystych do detekcji uszkodzeń i jedno i dwu wymiarowych elementach konstrukcyjnych.
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Composite Sandwich Footbridge – Numerical ESL FEM Calculations vs. In Situ Measurements
PublicationSelected results of the static analysis of composite sandwich footbridge with the corresponding in situ measured values are compared in the paper. The analysed bridge is a research object, which was built in 2015 and is currently located at the Gdańsk University of Technology campus. Since it is a novel structure, a proper definition of the bridge numerical model, allowing its safe design, is very important. Therefore, instead...
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Engendering responsibility in architecture students through real planning for a tram depot in Gdańsk
PublicationApart from technical competencies, the profession of architect requires specific social competencies: understanding the user’s needs, ability to diagnose social problems, negotiating and understanding the impact of construction investments on society and the environment. The architect plays a significant role in the collective effort to create spatial order. This is why it is important to include these social competencies in the...
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Energy storage device based on flywheel, power converters and Simulink real-time
PublicationThis electronic document is a “live” template and already defines the components of your paper [title, text, heads, etc.] in its style sheet. Paper presents information on Energy Storage Device based on Flywheel and bi-directional IGBT Power Converters – designed for LINTE^2 laboratory owned by Gdansk University of Technology in Poland. Paper is divided into four sections. First section of the paper provides introductory information...