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Search results for: KRAJE EUROPEJSKIE, SEKTOR BUDOWNICTWA,
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Using trust management model for detection of faulty nodes in Wireless Sensor Networks
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Automatic sound source localization in disturbing conditions using acoustic vector sensors
PublicationA concept, practical realization and applications of a passive acoustic radar to automatic localization and tracking of sound sources in disturbing conditions were presented in the paper. The device consists of the new kind of multichannel miniature sound intensity sensors and a group of digital signal processing algorithms. The sensitivity of the realized acoustic radar was examined in free sound field. Several kinds of sound...
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Suppression of distortions in signals received from Doppler sensor for vehicle speed measurement
PublicationDoppler sensors are commonly used for movement detection and speed measurement. However, electromagnetic interference and imperfections in sensor construction result in degradation of the signal to noise ratio. As a result, detection of signals reflected from moving objects becomes problematic. The paper proposes an algorithm for reduction of distortions and noise in the signal received from a simple, dual-channel type of a Doppler...
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Nickel Oxide Thin Film Sensor for Fluctuation-Enhanced Gas Sensing of Formaldehyde
PublicationNanocrystalline nickel-oxide-based thin films were prepared by advanced reactive gas deposition, and the response of these films to formaldehyde was studied by fluctuationenhanced sensing. Morphological and structural analyses showed porous deposits of nickel oxide particles with face-centered cubic structure. Resistance fluctuations were measured upon exposure to ethanol, formaldehyde and methane at 200 °C. Power density spectra...
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A novel luminescent chemical sensor for the determination of Pb 2+ and Cu 2+ ions
PublicationSilica xerogel surface grafted with aminopropyl (PrNH2) groups was additionally treated by cetyltrimethylammonium bromide (CTAB) surfactant and ascorbic acid (asc) in alkaline solution. This material symbolized as SiO2-PrNH2-CTAB/asc, proved to be a stable luminescent material, exhibited an emission band peaked at 393 nm under excitation wavelength 335 nm. Time evolution of the band intensity suggests changes of defect concentration...
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Optical properties of thin TiO2 film deposited on the fiber optic sensor head
PublicationThe presented study was focused on investigation of the titanium dioxide (TiO2) thin film deposited on the fiber tip. The intention of this investigation was using TiO2 film in the construction of the optical fiber sensor head. In the demonstrated construction TiO2 thin layer was deposited on the tip of a commonly used telecommunication single mode optical fiber (SMF-28) by means of the Atomic Layer Deposition (ALD). Thickness...
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Application of Support Vector Machine for Determination of Impact of Traffic-Induced Vibrations on Buildings
PublicationThe aim of the article is to present an algorithm of Support Vector Machine created to forecast the impact of traffic-induced vibrations on residential buildings. The method is designed to classify the object into one of two classes. The classification into the first class means that there is no impact of vibrations on the building, while classification to the second class indicates the possible influence and suggests the execution...
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MONTE CARLO MODELING OF OPTICAL SENSOR FOR POST-OPERATIVE FREE FLAP MONITORING
PublicationAfter a preliminary study of the currently employed methods in vitality monitoring of the tissue flaps (TRAM, DIEP, SIEA), a usefulness of optical techniques is discussed. It seems that one of the most promising in monitoring tissue flaps blood flow is a near infrared spectrometry (NIRS). However, a special design of a measurement sensor has to be developed. First, basing on the literature study an optical “window” is characterized....
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Low-strain sensor based on the flexible boron-doped diamond-polymer structures
PublicationA free-standing high boron-doped diamond nanosheet (BDDNS) has been fabricated for the development of a flexible BDDNS strain senor. High boron-doped diamond was initially grown on a tantalum substrate in a microwave plasma-assisted chemical vapor deposition method, and was then transferred to a Kapton polymer substrate to fabricate the flexible BDDNS/Kapton device. Before performing the transfer process, the thin BDDNS’s morphology...
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Potentiometric sensor with lipid-polymer membranes for quality assessment of French red wines
PublicationThe quality of wines resulting from vineyard management is important for consumers due to the taste and price of wines. In this work, the quality of red wines of three vintages has been investigated by potentiometric sensors with six all-solid-state electrodes. Two series of experiments were carried out. The first involved a qualitative analysis of wine of different vintages from freshly opened bottles. The second consisted of...
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Metrisable assessment of the course of stream‑systemic processes in vector form in industry 4.0
PublicationThe goal of this paper is to present an innovative conception how to use metrisable vector structure of a manufacturing process, based on quantitative relations between the activity of input streams, features of the product, and effect of losses; all of which are excellent practical solution for Industry 4.0, and in turn intelligent factories. This solution can be a usefull way in the process of building sustainable organization....
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Determination of Odor Air Quality Index (OAQII) Using Gas Sensor Matrix
PublicationThis article presents a new way to determine odor nuisance based on the proposed odor air quality index (OAQII), using an instrumental method. This indicator relates the most important odor features, such as intensity, hedonic tone and odor concentration. The research was conducted at the compost screening yard of the municipal treatment plant in Central Poland, on which a self-constructed gas sensor array was placed. It consisted...
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A Compact and Lightweight Microwave Tilt Sensor Based on an SRR-Loaded Microstrip Line
PublicationIn this paper, the symmetry property of split ring resonators (SRRs) is exploited to develop a tilt sensor. The sensor is composed of an SRR-loaded microstrip line operating at microwave frequencies. It is shown that the depth of notch in the reflection characteristic of the microstrip is a function of the tilt angle of the SRR. Thus, it can be used for sensing inclination. The sensor benefits from very compact size and light weight....
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Space vector modulation in multilevel inverters of the servo drives of the trajectory measurements telescopes
PublicationUsing the MatLab/Simulink mathematical model of a three-phase three-level voltage inverter, the influence of the space-vector modulation (SVM) algorithm on the pulsations of the current (torque) of an AC motor in the range of low rotation speeds is considered. It is shown that the SVM of the second kind does not provide a pulsations level comparable to the pulsations of a sinusoidal pulse-width modulation (SPWM), both in the static...
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Assessing the time effectiveness of trust management in fully synchronised wireless sensor networks
PublicationThe paper presents the results of the time effectiveness assessment of the distributed WSN Cooperative Trust Management Method - WCT2M in a fully synchronized Wireless Sensor Network (WSN). First we introduce some basic types of synchronization patterns in WSN based on the idea of sleep scheduling. Then we explain how WCT2M works in the network applying the fully synchronized sleep scheduling pattern. Such networks were subjected...
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INVESTIGATION OF ACIDIC SOLUTIONS BY POTENTIOMETRIC TASTE SENSOR WITH ALL SOLID STATE ELECTRODES
PublicationPotentiometric taste sensors with electrodes containing lipophilic compound / polymer membranes were already used to distinguish commercial liquid products. In this paper a new potentiometric taste sensor consisting of six All Solid State Electrodes (ASSEs) has been presented. Each of the membrane contains a selected lipophilic compound. The set-up consists of a reference electrode and six ASSEs. The inner layer made of a conducting...
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Odrębność Estonii w nadbałtyckiej przestrzeni kulturowo-cywilizacyjnej
PublicationW europejskim obrazie regionalnym, uwagę zwraca nadbałtycka przestrzeń kulturowo-cywilizacyjna, którą odnosi się do hegemonicznej rzeczywistości danego obszaru. Wyjątkową wartość stanowi tam dziedzictwo Republiki Estoniik, która jest integralną częścią wspólnoty europejskiej; wskazują na to kraty przeszłości, ład polityczny i gospodarczy oraz aspiracje i dążenie społeczności tam zamieszkujących.
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Przesłanki rozwoju energetyki źródeł odnawialnych na tle absorpcyjnych pomp ciepła
PublicationW artykule zaprezentono kierunki i potrzebę rozwoju energetyki źródeł odnawialnych. Określono również obowiązujące ramy prawne Unii Europejskiej określające rozwój eurpejskiej energetyki. Na podstawie rzeczywistych układów absorpcyjnych, pracujących w polskich warunkach, wykazano przesłanki ekonomiczne i potrzebę wykorzystania takich układów.
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Formy architektoniczne gdyńskiego budownictwa wielorodzinnego w latach 19902000 jako wyraz specyfiki miejsca.**2002, 230 s. 87 rys. bibliogr. 137 poz. maszyn. Rozprawa doktorska(2002.01.24), Wydz.Arch, P. Gdań. Promotor: prof. dr inż. arch. L. Taraszkiewicz.
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Paterns of employment quality upgrading in the European Union
PublicationArtykuł przedstawia zmiany jakościowe w strukturze zatrudnienia krajów UE w latach 1970-2005 (goapodarki UE15) oraz 1995-2005 (Nowe Kraje Członkowskie). Analizę oparto o klasyfikację sektorów ze względu na ich poziom technologiczny oraz intensywność wykorzystania umiejętności siły roboczej.
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Technologie informacyjne i komunikacyjne w Polsce : stan obecny i perspektywy rozwoju
PublicationNowoczesne technologie informacyjne i komunikacyjne (icts - information and communication technologies) to jeden z najważniejszych elementów, który stanowi o stanie krajowej - jak i światowej - gospodarki. w literaturze można spotkać się z pew-ną dychotomią pojęciową icts. z jednej strony icts są traktowane jako sektor gospodarki, który dostarcza dóbr i usług it, przyczyniając się do wzrostu go-spodarczego i zmieniając strukturę...
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Jakość i efekty kształcenia, a kolejne etapy procesu Bolońskiego
PublicationKraje uczestniczące w procesie bolońskim od lat poszukują fundamentalnych wartości i dobrych praktyk związanych z jakością kształcenia. Zapewnienie jakości w szkolnictwie wyższym nie jest problemem wyłącznie europejskim. Na całym świecie obserwuje się coraz większe zainteresowanie tą tematyką, co jest odzwierciedleniem zarówno gwałtownego rozwoju szkolnictwa wyższego, jak i związanych z nim kosztów jakimi obciążone jest z tego...
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Problem oznaczania pozostałości rozpuszczalników organicznych w wybranych produktach spożywczych i farmaceutycznych, cz I
PublicationW artykule przedstawiono ogólny wpływ, jaki na nasze życie ma wzrastająca urbanizacja i uprzemysłowienie. Przedstawiono również źródła zanieczyszczenia żywności i leków rozpuszczalnikami oraz regulacje prawne dotyczące tego rodzaju zanieczyszczeń (Farmakopea Europejska, Farmakopea Amerykańska, Dyrektywy Unii Europejskiej, Rozporządzenia Rady Ministrów).
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Responsible resource management in hotels - attitudes, indicators, tools and strategies ; doctoral thesis.
PublicationHotele stanowią jeden z głównych i wciąż rozwijających się sektorów turystyki. Budynki hotelowe sa dość energochłonne, a instalacje i zamontowane systemy często nieefektywne co prowadzi do wyraźnych skutków ubocznych dla środowiska naturalnego. Niniejsza praca zawiera informacje na temat istniejących inicjatyw prośrodowiskowych w światowym sektorze hotelarskim. Analiza wyników ankiety przeprowadzonej wśród 610 przedstawicieli europejskiego...
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Problemy otoczenia konkurencyjnego i globalnego sektora bioetanolu w Polsce. Cz. 2. Potencjał produkcyjny i perspektywy jego rozwoju
PublicationW artykule przedstawiono problematykę otoczenia konkurencyjnego i globalnego sektora bioetanolu w Polsce, w okresie ostatnich lat. Opisano wstępne przewidywania ekspertów - w myśl których Polska miała stać się potentatem w zakresie produkcji i eksportu bioetanolu oraz sytuację obecną - w której stosowanie bioetanolu (Dyrektywa 2003/30/EC i 2009/28/EC) bazuje głównie na biokomponentach zagranicznych. Opisano także sytuację w sektorze...
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Internacjonalizacja małych i średnich przedsiębiorstw na Pomorzu w świetle badań empiryczncznych
PublicationNiniejszy artykuł przedstawia fragment wynków badania przeprowadzonego w ramach Pomorskiego Obserwatorium Gospodarczego II (POG II) dotyczących internacjonalizacji firm sektora MSP. Badanie było przeprowadzone przey wsparciu furnduszy europejskich i budżetu państwa.
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Wartości wskaźników finansowych opartych na przepływach pieniężnych w najmniej zagrożonych upadłością spółkach giełdowych
PublicationNiniejszy rozdział monografii prezentuje, jak w latach 2001 - 2008 najmniej zagrożone upadłością spółki giełdowe kształtowały wartości wskaźnika: zdolności do generowania operacyjnej nadwyżki pieniężnej, udziału zysku netto w operacyjnej nadwyżce pieniężnej, finansowania działalności inwestycyjnej, ogólnej wystarczalności środków pieniężnych oraz pieniężnej wydajności sprzedaży. Z osobna zostały zaprezentowane w nim wyniki badań...
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Opracowanie zestawu rekomendacji i modeli dla prowadzenia procesu rewitalizacji w centrum Łodzi
PublicationOPRACOWANIE JEST ELEMENTEM PROJEKTU "CENTRUM WIEDZY REWITALIZACJI" realizowanego przez Miasto Łódź współfinansowanego przez Unię Europejską ze środków Europejskiego Funduszu Rozwoju Regionalnego w ramach Regionalnego Programu Operacyjnego Województwa Łódzkiego na lata 2014-2020.
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Response of a New Low-Coherence Fabry-Perot Sensor to Hematocrit Levels in Human Blood
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Fiber optic sensor based on optical frequency domain reflectometry.Optical Fibres and their Applications VIII.
PublicationW pracy przedstawiono wyniki modelowania systemu sensorów światłowodowych wykorzystującego reflektometrię optyczną w dziedzinie częstotliwości. Na podstawie tych wyników zrealizowano quasi-rozłożony sensor temperatury. Zaprezentowano i omówiono wyniki pomiarów.
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Geographic information system for remote integration of diverse under-water acoustic sensor data
PublicationMaritime and port areas throughout the world are exposed to many different hazards, like pollution, terrorism and natural disasters. Early detection, identification and preparation of appropriateesponse strategies is especially important in the case of semi-enclosed basins like the Baltic Sea, mainly due to the marine ecosystems' continuous absorption of pollutants including oil, heavy metals and chemicals. Many of those agents...
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Kinetic flux vector splitting scheme for solving non-reactive multi-component flows
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<title>Hardware emulator of the high-resolution CCD sensor for the Pi of the Sky experiment</title>
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KMgF3:Eu2+ as a new fluorescence-based pressure sensor for diamond anvil cell experiments
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Bacterial strains colonizing the sensor electrodes of a continuous glucose monitoring system in children with diabetes
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Dynamic Re-Clustering Leach-Based (Dr-Leach) Protocol for Wireless Sensor Networks
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Graphene-encapsulated iron nanoparticles as a non-viral vector for gene delivery into melanoma cells
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Model integracji koncepcji Lean Management i Six Sigma w sektorze MŚP
PublicationW opracowaniu przedstawiono propozycję metodyki wprowadzania i wykorzystania elementów koncepcji Lean Six Sigma w sektorze MŚP. Metodyka została poddana weryfikacji w średniej wielkości francuskiej firmie produkcyjnej. Wnioski płynace z tej weryfikacji przyczyniły się do udoskonalenia proponowanych rozwiązań
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Electrochemical sensor for measurement of volatile organic compounds employing square wave perturbation voltage
PublicationThe paper presents the results of investigation on a prototype sensor for measurement of benzaldehyde in air. Sensitivity and limit of quantification of the sensor were determined for different internal electrolyte using the square wave voltammetry (SWV) as a detection technique. The working and counter electrodes were made of platinum. Ionic liquids 1-hexyl, 3-methylimidazolium chloride,1-hexyl, 3-methylimidazolium bis (trifluoromethanesulfonyl)...
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Throughput vs. Resilience in Multi-hop Wireless Sensor Networks with Periodic Packet Traffic
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Comparison of sunshine duration measurements from Campbell-Stokes sunshine recorder and CSD1 sensor
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Straty i marnotrawstwo żywności w sektorze rybnym - przyczyny i sposoby ograniczania
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The impacts of final demands changes on the total outputs of Japanese industrial sectors: A further study
PublicationThe purpose of the current study is to expand the previous studies which analyze the impacts of final demands changes on the total outputs of industrial sectors of a specific country. More specifically, the study conducts the analysis regarding the impacts on the total outputs of Japanese industries. The study employs a demand-pull Input-Output (IO) quantity model, one of the calculation tools in the IO analysis. The study focuses...
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Sparse vector autoregressive modeling of audio signals and its application to the elimination of impulsive disturbances
PublicationArchive audio files are often corrupted by impulsive disturbances, such as clicks, pops and record scratches. This paper presents a new method for elimination of impulsive disturbances from stereo audio signals. The proposed approach is based on a sparse vector autoregressive signal model, made up of two components: one taking care of short-term signal correlations, and the other one taking care of long-term correlations. The method...
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Neural Networks, Support Vector Machine and Genetic Algorithms for Autonomous Underwater Robot Support
PublicationIn this paper, artificial neural networks, a classification technique called support vector machine and meta-heuristics genetic algorithm have been considered for development in autonomous underwater robots. Artificial neural networks have been used for seabed modelling as well as support vector machine has been applied for the obstacles classification to avoid some collision problems. Moreover, genetic algorithm has been applied...
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3D Sound Intensity Measurement Around Organ Pipes Using Acoustic Vector Sensors
PublicationThe aim of the presented paper was to obtain and visualize sound intensity distribution of radiated acoustic energy around the organ pipes. The experimental setup consisted of the multichannel acoustic vector sensor and the specialized Cartesian robot. Measurements were performed in free field with spatial resolution of 0.1 [m]. Two organ pipes, i.e. wooden and metal were measured during the ex-periment. The organ pipes were activated...
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Integrated sectors - diversified earnings: the (mising) impact of offshoring on wages and wage convergence in the EU27
PublicationThis paper assesses the impact of international outsourcing/offshoring practices on the process of wage equalization across manufacturing sectors in a sample of EU27 economies (1995–2009). We discriminate between heterogeneous wage effects on different skill categories of workers (low, medium and high skill). The main focus is on the labour market outcomes of vertical integration, so we augment a model of conditional wage convergence through...
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Multilevel inverter neutral-point voltage sensor diagnostic based on the Extended Kalman Filter
PublicationA new algorithm for neutral point voltage imbalance estimation in DC link of the three-level (3L) neutral point clamped (NPC) voltage source inverter (VSI) is proposed. Application of the proposed algorithm does not require any additional sensors. The unbalanced voltage calculation is based on the information derived from the inverter output measured currents and from the knowledge of the load model parameters. In order to estimate...
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Integrated Sectors - Diversified Earnings: The (Missing) Impact of Offshoring on Wages and Wage Convergence in the EU27
PublicationThis paper assesses the impact of international outsourcing/offshoring practices on the process of wage equalization across manufacturing sectors in a sample of EU27 economies (1995-2009). We discriminate between heterogeneous wage effects on different skill categories of workers (low, medium and high skill). The main focus is on the labour market outcomes of vertical integration, so we augment a model of conditional wage convergence...
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Optimization of a Fabry-Perot Sensing Interferometer design for an optical fiber sensor of hematocrit level
PublicationContinuous measurement of the hemato crit level in blo o d can p otentially b e p erformed using optical bre sensors. The FabryPerot interferometric sensors are a promising candidate in this application. The most imp ortant step in the design of the sensor is design of the sensing interferometer. Adequate cavity length and high interference contrast are two most imp ortant requirements in this application. The design metho d of...