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Gesture-based computer control system
PublikacjaIn the paper a system for controlling computer applications by hand gestures is presented. First, selected methods used for gesture recognition are described. The system hardware and a way of controlling a computer by gestures are described. The architecture of the software along with hand gesture recognition methods and algorithms used are presented. Examples of basic and complex gestures recognized by the system are given.
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Neurocontrolled Car Speed System
PublikacjaThe features of the synthesis of neural controllers for the car speed control system are considered in this article. The task of synthesis is to determine the weight coefficients of neural networks that provide the implementation of proportional and proportional-integralderivative control laws. The synthesis of controllers is based on an approach that uses a reversed model of the standard. A model of the car speed control system with...
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Międzynarodowa konferencja IATUL Seminar 2019 „Organizacyjne i prawne aspekty Otwartej Nauki” / International IATUL Seminar 2019 "Organizing the Open Science Framework – Strategies and Legal Aspects”
PublikacjaIATUL Seminar 2019 was held in Gdańsk/Sopot, Poland (December 10-11th, 2019). The theme of the Seminar was „Organizing the Open Science Framework – Strategies and Legal Aspects”. The event was co-organized by Gdańsk University of Technology Library and International Association of University Libraries (IATUL). IATUL Seminar 2019 event attracted delegates, including directors and senior managers of university and research libraries...
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Asynchronous Wide Area Multilateration System
PublikacjaA new method for a location service in the wide area multilateration (WAM) system is outlined. This method, which is called asynchronous WAM (AWAM), enables calculation of the geographical position of an aircraft without knowledge of relative time differences (RTDs) between measuring ground stations (sensors). The AWAM method is based on the measurement of round trip times (RTTs) between the aircraft and the serving ground station,...
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Hydroxyl and sulfate radical-based degradation of ciprofloxacin using UV-C and/or Fe2+-catalyzed peroxymonosulfate: Effects of process parameters and toxicity evaluation
PublikacjaCiprofloxacin (CIP) is a valuable antibiotic and discharged in huge quantities in aquatic environment. Different •OH and SO4•−-based advanced oxidation technologies (AOTs), e.g., Fe2+/PMS, UV-C/PMS, and UV-C/Fe2+/PMS are developed for treatment of CIP. The removal of CIP by Fe2+/PMS, UV-C/PMS and UV-C/Fe2+/PMS was 63, 77, and 87 %, respectively, under identical conditions which showed better performance of UV-C/Fe2+/PMS. The UV-C/Fe2+/PMS...
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Voice Multilateration System
PublikacjaThis paper presents an innovative method of locating airplanes, which uses only voice communication between an air traffic controller and the pilot of an aircraft. The proposed method is described in detail along with its practical implementation in the form of a technology demonstrator (proof of concept), included in the voice communication system (VCS). A complete analysis of the performance of the developed method is presented,...
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Asynchronous Networked Estimation System for Continuous Time Stochastic Processes
PublikacjaIn this paper we examine an asynchronous networked estimation system for state estimation of continuous time stochastic processes. Such a system is comprised of several estimation nodes connected using a possibly incomplete communication graph. Each of the nodes uses a Kalman filter algorithm and data from a local sensor to compute local state estimates of the process under observation. It also performs data fusion of local estimates...
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Modelling of Geared Multi-Rotor System
PublikacjaIn the paper the method of modelling a speed-varying geared rotor system is presented. The proposed approach enables us to obtain an accurate low-order lumped parameter representation of the investigated system. The final model consists of reduced modal models of an undamped beam/torsional shaft system as well as a spatially lumped model of other linear and nonlinear phenomena including gear mesh interaction.
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Dlaczego system zarządzania przestrzenią?
PublikacjaArtykuł zawiera rozważania dotyczące konieczności i możliwości integracji wielu instrumentów gospodarowania przestrzenią w jeden system, budowany dla potrzeby zarządzania zrównoważonym rozwojem miasta.
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An odor-sensing system - powerful technique for foodstuff studies
PublikacjaThis work examines gas sensor array technology combined with multivariate data processing methods and demonstrates a promising potential for rapid, non-destructive analysis of food. Main attention is focused on detailed description of sensor used in e-nose instruments, construction, and principle of operation of these systems. Moreover, this paper briefly reviews the progress in the field of artificial olfaction and future trends...
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System bezpieczeństwa narodowego RP.
PublikacjaSystem bezpieczeństwa narodowego RP1. struktura systemu2.strategia bezpieczeństwa narodowego RP3. zarządzanie kryzysowe- podstawa prawna działania- struktura organizacyjna i kompetencje- realizowana strategia działania4. podsumowanie
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Emotion monitoring system for drivers
PublikacjaThis article describes a new approach to the issue of building a driver monitoring system. Actual systems focus, for example, on tracking eyelid and eyebrow movements that result from fatigue. We propose a different approach based on monitoring the state of emotions. Such a system assumes that by using the emotion model based on our own concept, referred to as the reverse Plutchik’s paraboloid of emotions, the recognition of emotions...
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Radar data fusion in the STRADAR system
PublikacjaThe main task of the Polish Border Guard is protection of the country’s border which requires utilization of multimedia surveillance systems automatically gathering, processing and sharing various data. The paper presents such a system developed for the Maritime Division of the Polish Border Guard within the STRADAR project and the problem of fusion of radar data in this system. The system, apart from providing communication means,...
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The Impact of Wind Generation on the Transmission System
PublikacjaThis article has been published to investigate the im-pact of the wind power on the power system- this is a system dependent issue that requires to perform sys-tem specific impact study. This paper discusses the impact of power flow, short circuit current, power quali-ty, voltage stability and the power system during the connection of a wind farm into transmission system. W referacie omówiono wpływ farm wiatrowych na pracę systemu...
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Evolution of the nanostructure of Pt and Pt–Co polymer electrolyte membrane fuel cell electrocatalysts at successive degradation stages probed by X-ray photoemission
PublikacjaWe present a set of XPS (X-ray photoemission spectroscopy) measurements and detailed data-analysis of electrodes for polymer electrolyte membrane fuel cell (PEMFC) based on carbon supported catalysts (Pt and Pt–Co) subjected to a step-like potential cycling (accelerated degradation test). The results of the measurements complete and corroborate parallel TEM (transmission electron microscopy), XRD (X-ray diffraction) and XAS (X-ray...
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Co-Existence of Iron Oxide Nanoparticles and Manganese Oxide Nanorods as Decoration of Hollow Carbon Spheres for Boosting Electrochemical Performance of Li-Ion Battery
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Monitoring system of the road embankment
PublikacjaThe paper presents the monitoring system of the embankment supported on concrete columns and overlaid by a load transfer platform (LTP) with the embedded steel grid. This field investigation was to study the complex inter-action between the columns, the LTP layer, and steel reinforcement via full-scale in situ measurements during erection of the embankment. The study was focused on the behaviour of steel reinforcement and the behaviour...
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Wireless paging system
PublikacjaAssistance to patients at hospitals and nursing homesoften encounters problems related to obtaining information onthe current needs of the patient. Traditionally, patient informshospital stuff by wire and wireless paging systems. WirelessPaging Systems allow one to overcome the limitations of theirwire counterparts, which include high installation costs (cabling)and lack of patient mobility. The main difference betweenpresented...
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Why do Open Government Data initiatives fail in developing countries? A root cause analysis of the most prevalent barriers and problems
PublikacjaOpen government data (OGD) include the provision of government data, which have so far been reserved for the provision of public utilities and services, wherein different stakeholders may create value out of the same source. Recently, OGD initiatives around the world have dampened or were found to be inadequate for one or other reasons. The present study seeks to underline the root causes behind these inadequate or stalled initiatives...
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System synchronizacji nagrań wielokanałowych
PublikacjaNiniejsza praca zawiera opis komputerowego systemu synchronizacji wielu dźwięków pochodzących z nagrania jednej wypowiedzi przy wykorzystaniu kilku mikrofonów i różnych niezsynchronizowanych urządzeń rejestrujących. System wykorzystuje korelację skrośną.
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System synchronizacji nagrań wielokanałowych
PublikacjaNiniejsza praca zawiera opis komputerowego systemu synchronizacji wielu dźwięków pochodzących z nagrania jednej wypowiedzi przy wykorzystaniu kilku mikrofonów i różnych niezsynchronizowanych urządzeń rejestrujących. System wykorzystuje korelację skrośną.
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MONITORING SYSTEM OF THE ROAD EMBANKMENT
PublikacjaThe paper presents the analysis of the monitoring system of the embankment supported on concrete columns and overlaid by a load transfer platform with the embedded steel grid. This field investigation was to study the complex interaction among the columns, the load transfer platform layer, and steel grid via in situ measurements during erection and live loading of the embankment. The study was focused on the behaviour of steel...
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System zarządzania naprawami
PublikacjaW artykule tym opisano dwa istotne współcześnie problemy, związane z wykorzystywaniem w przemyśle systemów IT: problem ich monitorowania oraz problem ich naprawy. Przedstawiono w nim skrótowo wytworzone rozwiązanie, służące automatyzacji procesu przeprowadzania napraw oraz integrujące się z istniejącymi systemami monitorującymi. Rozwiązanie to, zwane Systemem Zarządzania Naprawami, jest częścią większej metody, zwanej Metodą Zarządzania...
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Rapid simulation-driven design of miniaturised dual-band microwave couplers by means of adaptive response scaling
PublikacjaOne of the major challenges in the design of compact microwave structures is the necessity of simultaneous handling of several objectives and the fact that expensive electromagnetic (EM) analysis is required for their reliable evaluation. Design of multi-band circuits where performance requirements are to be satisfied for several frequencies at the same time is even more difficult. In this work, a computationally efficient design...
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A rapid-response ultrasensitive biosensor for influenza virus detection using antibody modified boron-doped diamond
PublikacjaAccording to the World Health Organization (WHO), almost 2 billion people each year are infected worldwide with flu-like pathogens including influenza. This is a contagious disease caused by viruses belonging to the family Orthomyxoviridae. Employee absenteeism caused by flu infection costs hundreds of millions of dollars every year. To successfully treat influenza virus infections, detection of the virus during the initial development...
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Rapid multi-objective design of integrated on-chip inductors by means of Pareto front exploration and design extrapolation
PublikacjaIdentification of the best trade-offs between conflicting design objectives allows for making educated design decisions as well as assessing suitability of a given component or circuit for a specific application. In case of inductors, the typical objectives include maximization of the quality factor and minimization of the layout area, as well as maintaining a required inductance at a given operating frequency. This work demonstrates...
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An improved methodology for the synthesis of 1-C-allyl imino-d-xylitol and -l-arabinitol and their rapid functionalization
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Rapid eradication of bacterial phytopathogens by atmospheric pressure glow discharge generated in contact with a flowing liquid cathode
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Mixed ionic polaron transport and rapid crystallization in (Bi, Pb)-Sr-Ca-Cu-O glass.
PublikacjaPrzedstawiono rezultaty pomiarów zmiennoprądowego przewodnictwa elektrycznego w szkłach (Bi,Pb)-Sr-Ca-Cu-O. Zaobserwowano dwa mechanizmy przewodnictwa.Zaproponowano hopping małych polaronów i dyfuzję jonów Cu(I) jako mechanizmy przewodnictwa.
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Rapid Surrogate-Aided Multi-Criterial Optimization of Compact Microwave Passives Employing Machine Learning and ANNs
PublikacjaThis article introduces an innovative method for achieving low-cost and reliable multi-objective optimization (MO) of microwave passive circuits. The technique capitalizes on the attributes of surrogate models, specifically artificial neural networks (ANNs), and multi-resolution electromagnetic (EM) analysis. We integrate the search process into a machine learning (ML) framework, where each iteration produces multiple infill points...
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System of innovation: a sectoral approach
Publikacjathe article presents a systems approach to innovation as an alternative method of assessing the sector innovativeness. in the article the building blocks of each sectoral system of innovations (ssi) such as a knowledge base, institutions and actors are discussed. moreover, the five models of ssi are presented.
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Calculation of the Effects of Implementing a DSM Electricity Demand Management Strategy Using the Example of Analysis of Changes in the Power System Load
PublikacjaThe paper presents the impact of implementing Demand Side Management (DSM) solutions through proper management and control of the process of charging and discharging electric car batteries. As a result, the daily load curves were shaped so as to fill valleys and cut down peaks. Therefore, the implementation of power demand management solutions had a significant impact on the power system operation. The impact of DSM solutions manifested...
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Robust Monitoring of Water Quality in Drinking Water Distribution System
PublikacjaThe paper develops a novel open loop set bounded observer for robust estimation of water quality in DWDS based on the advanced nonlinear quality dynamics model including disinfections by-products (DBPs). The observer utilises a cooperativeness of the quality dynamics model and is computationally efficient, hence applicable to on-line quality monitoring. The simulation results illustrate its good and sustainable performance.
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Multimedialny system monitorowania hałasu
PublikacjaCelem projektu Multimedialny System Monitorowania Hałasu zrealizowanego w Politechnice Gdańskiej było opracowanie teleinformatycznego systemu monitorowania klimatu akustycznego, uwzględniając w szczególnym stopniu obrazowanie wpływu zagrożeń hałasowych na słuch. Rozwiązania wcześniej dostępne na rynku cechują wysokie koszty oraz ograniczone możliwości rozbudowy o nowe funkcje analizy sygnału akustycznego, ograniczenia technologiczne...
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Study of the Performance of DSSS UAC System Depending on the System Bandwidth and the Spreading Sequence
PublikacjaA signal transmitted in an Underwater Acoustic Communication (UAC) system operating in a shallow-water channel suffers from strong time dispersion due to multipath propagation. This causes the Inter-Symbol Interference (ISI) observed in the received signal, which significantly limits the communication system’s reliability and transmission rate. In such propagation conditions, the Direct-Sequence Spread Spectrum (DSSS) method is...
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Collaborative planning? Not yet seen in Poland. Identifying procedural gaps in the planning system 2003–2023
PublikacjaCollaborative planning aims to increase the legitimacy of decision-making in spatial development. In this approach, planning involves debate and engagement in discourse, and participation and interaction between actors are thus at the heart of the planning process. This article examines whether the planning system in Poland as defined for the period 2003–2025 provides a level of participation and deliberation and other qualities...
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A system for singing training
PublikacjaThe system proposed is aimed at the vocal students and persons who want to improve emission of their voices. The goal is not to substituite a singing teacher but to provide a tool for automatic teaching of voice emission basics. In this way singers can develop their vocal skills and improve them. By a visual feedback a student can control and modify vocal tract maximas (resonances) of a chosen vowel to match the resonances of the...
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State of the Art in Open Platforms for Collaborative Urban Design and Sharing of Resources in Districts and Cities
PublikacjaThis work discusses recent developments in sharing economy concepts and collaborative co-design technology platforms applied in districts and cities. These developments are being driven both by new technological advances and by increased environmental awareness. The paper begins by outlining the state of the art in smart technology platforms for collaborative urban design, highlighting a number of recent examples. The case of peer-to-peer...
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Analyzing and Visualizing Uncertain Knowledge: The Use of TEI Annotations in the PROVIDEDH Open Science Platform
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Cost Effectiveness of Open Repair of Abdominal Aortic Aneurysms with a Novel Peri-Operative Bundle
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Antibiotic prophylaxis in open inguinal hernia repair: a literature review and summary of current knowledge
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DentalSegmentator: Robust open source deep learning-based CT and CBCT image segmentation
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Concept of implementation of open water model tests for assessment of safety of ships in damaged conditions
PublikacjaPraca zawiera opis koncepcji zastosowania badań modelowych na wodach otwartych w odniesieniu do oceny bezpieczeństwa statków w stanie uszkodzonym. Badania modelowe w omawianym zakresie mogą stanowić alternatywną metodę oceny bezpieczeństwa statków w stanie uszkodzonym lub mogę służyć do weryfikacji oceny bezpieczeństwa statków w stanie uszkodzonym, przeprowadzonej za pomocą metody zawartej w zharmonizowanej wersji konwencji SOLAS...
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Form-finding of textile hanging roof of Opera Lesna open-air theatre in Sopot
PublikacjaW pracy przedstawiono zasady kształtowania wstępnego przekryć wiszących na przykładzie przekrycia Opery Leśnej w Sopocie. Pokazano dwa sposoby uzyskania zrównoważonej konfiguracji przekrycia o parametrach założonych w projekcie architektonicznym.
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Compensation of Dead Time Effects for Shunt Active Power Filters
PublikacjaThe paper presents a comprehensive approach to the compensation of the grid current distortion for shunt active power filter systems. Four different sources of current distortion are addressed: imperfect grid synchronization caused by the distortion in the grid voltages, time delays in the estimation of compensating currents and grid voltages, fluctuations of the dc bus voltage, and the distortion of inverter output voltages due...
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Mechanistic insights into the reactive radicals-assisted degradation of sulfamethoxazole via calcium peroxide activation by manganese-incorporated iron oxide–graphene nanocomposite: Formation of radicals and degradation pathway
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WSN for intelligent street lighting system
PublikacjaIn this article authors propose to apply WSN to intelligent street lighting system. As a result of such a combination one obtains a system designed to increase functionality of light installations for a wide range of applications and introduce a platform for new additional services, which meets current and future user needs. The system is composed of WSN nodes integrated with light sources based on high power LED diodes, which...
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Closed-Loop Control System Design for Wireless Charging of Low-Voltage EV Batteries with Time-Delay Constraints
PublikacjaThis paper presents an inductive power transfer system on the basis of a double single- phase three-level T-type inverter and two split transmitting coils for constant current and constant voltage wireless charging of low-voltage light electric vehicle batteries with closed-loop control, considering time-delay communication constraints. An optimal control structure and a modified control strategy were chosen and implemented to...
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Phase-difference positioning in asynchronous system
PublikacjaThis paper presents concept and implementation of digital positioning system based on phase difference measurements, designed as a navigational aid for marine applications. Main feature of proposed system is the ability to work in both synchronous mode, with one master station and set of slave stations synchronized with master, and in asynchronous mode with independent clocking of all stations.
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Polytypism and superconductivity in the NbS2 system
PublikacjaWe report on the phase formation and the superconducting properties in the NbS2 system. Specifically, we have performed a series of standardized solid-state syntheses in this system, which allow us to establish a comprehensive synthesis map for the formation of the two polytypes 2H-NbS2 and 3R-NbS2, respectively. We show that the identification of two polytypes by means of X-ray diffraction is not always unambiguous. Our physical...