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Search results for: EGRESS MONITORING
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Accelerated degradation of organic coatings due to cyclic mechanical stress
PublicationPotrzeba okresowej renowacji wymalowań na obiektach technicznych wynika z naturalnej degradacji powłok ochronnych wskutek oddziaływania czynników obecnych w miejscu eksploatacji. W niniejszej pracy opisano synergiczny wpływ dwóch z nich - promieniowana ultrafioletowego i cyklicznych naprężeń mechanicznych - na trwałość komercyjnie stosowanego zestawu powłokowego przeznaczonego do ochrony konstrukcji mostowych.
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Association of Genes Related to Oxidative Stress with the Extent of Coronary Atherosclerosis
PublicationOxidative stress is believed to play a critical role in atherosclerosis initiation and progression. In line with this, in a group of 1099 subjects, we determined eight single nucleotide polymorphisms (SNPs) related to oxidative stress (PON1 c.575A>G, MPO c.463G>A, SOD2 c.47T>C, GCLM c.590C>T, NOS3 c.894G>T, NOS3 c.786T>C, CYBA c.214C>T, and CYBA c.932A>G) and assessed the extent of atherosclerosis in coronary arteries based on...
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Akceleracja sprzętowa transformaty falkowej w systemie widzenia maszynowego do monitoringu ruchu drogowego
PublicationW artykule opisano system monitorowania ruchu drogowego oparty na tanich kamerach i przetwarzaniu obrazu realizowanym w układzie FPGA wyposażonym dodatkowo w bezprzewodowy interfejs sieciowy. System ma być zasilany za pomocą ogniw słonecznych i dlatego został zoptymalizowany pod kątem zużycia energii. Szczegółowo opisano moduł detekcji i pomiaru długości zatorów powstałych na skrzyżowaniach. Do analizy wykorzystano dyskretną transformatę...
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System monitoringu odbieraków prądu pojazdów kolejowych w aspekcie bezpieczeństwa i ciągłości ruchu.
PublicationOmówiono metodę monitorowania stanu technicznego odbieraków prądu w oparciu o pomiar uniesienia przewodów jezdnych sieci trakcyjnej w czasie przejazdu pociągu. Opisano konstrukcję i zasadę działania wdrożonego na linii kolejowej pilotażowego stanowiska monitoringu. Przedstawiono metodę analizy i sposób wizualizacji wyników pomiarów. Zastosowany algorytm szacowania siły statycznej odbieraka uwzględnia prędkości pociągu i działanie...
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System monitoringu technicznego Hali Sportowo-Widowiskowej "Olivia" w Gdańsku (SMT OLIVIA-2)
PublicationSystem SMT OLIVIA-2 ma za zadanie monitorowanie podstawowych parametrów pracy konstrukcji dachu i w sposób zautomatyzowany sygnalizowanie o jej stanie technicznym. System jest nowatorskim rozwiązaniem technologicznym. Nowością w stosunku do dostępnych na rynku ofert jest w szczególności rozbudowany moduł obliczeniowy bazujący na szczegółowym modelu teoretycznym dachu oraz zintegrowany z nim system ekspercki.
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Optoelektroniczny system przestrzennego monitoringu wzbudzenia plazmy w procesach syntezy optycznych warstw diamentopodobnych
PublicationPrzedmiotem pracy jest optoelektroniczny system do badania wzbudzenia plazmy mikrofalowej w procesie syntezy warstw DLC (ang. Diamond Like-Carbon). W komunikacie zaprezentowano budowę systemu do przestrzennego monitoringu stanu wzbudzenia plazmy podczas procesu CVD. System SR-OES (ang. Spatially Resolved Optical Emission Spectroscopy) umożliwia określanie rozkładu wzbudzenia cząstek w przestrzeni komory i na tej podstawie wybrania...
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Ocena rzeczywistej wytrzymałości betonu na bazie monitoringu procesu dojrzewania i symulacji numerycznych
PublicationGłównym celem rozprawy jest opracowanie procedur badawczych i algorytmów numerycznych do wyznaczania rzeczywistej wytrzymałości betonu w konstrukcji wraz z ich implementacją w procesie budowalnym mostu typu extradosed. Zakres pracy obejmuje rozpoznanie metody dojrzałości, badania laboratoryjne betonów i zapraw, badania betonu zastosowanego do budowy przęsła mostu oraz obliczenia numeryczne rozkładu temperatury i wytrzymałości betonu...
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Wielowymiarowe techniki analizy danych pomiarowych - przykłady z zakresu analityki i monitoringu środowiska.
PublicationPrzedstawiono techniki obróbki wielowymiarowych zbiorów wyników pomiarowych. Na podstawie danych literaturowych zaprezentowano możliwość wykorzystania w analityce i moitoringu środowiskowym takich technik jak: analiza wariancji (ANOVA), analiza szeregów czasowych, analiza czynnikowa, sztuczne sieci neuronowe.
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Monitoring T-Cell Responses in Translational Studies: Optimization of Dye-Based Proliferation Assay for Evaluation of Antigen-Specific Responses
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Monitoring zwierciadła wód podziemnych i ich jakości na obszarze budowy tunelu drogowego pod Martwą Wisłą.
PublicationOmówiono wyniki pomiarów zwierciadła wód podziemnych oraz badań jakości wód podziemnych, wykonywanych podczas budowy pierwszej rury tunelu. Podkreślono, że podczas realizacji drugiej rury tunelu, a zwłaszcza przejść poprzecznych, istnieje potrzeba prowadzenia stałego monitoringu jakości wód, ze szczególnym wskazaniem na badania chlorków w piezometrach i Martwej Wiśle.
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Secure access control and information protection mechanisms in radio system for monitoring and acquisition of data from traffic enforcement cameras
PublicationThe study presents the architecture of the Radio System for Monitoring and Acquisition of Data from Traffic Enforcement Cameras (in short: RSMAD), particularly concerning access control and protection of confidential data. RSMAD security structure will be discussed in relation to network security issues. Additionally, the paper presents the results of the work associated with the modelling of potential threats to system security.
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Empirical Versus Targeted Treatment of Helicobacter pylori Infections in Southern Poland According to the Results of Local Antimicrobial Resistance Monitoring
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Membrane extraction with sorbent interface-gas chromatography as an effective and fast means for continuous monitoring of thermal degradation products of polyacrylonitrile
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Condition Monitoring of Horizontal Sieving Screens—A Case Study of Inertial Vibrator Bearing Failure in Calcium Carbonate Production Plant
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Air Pollution Research Based on Spider Web and Parallel Continuous Particulate Monitoring—A Comparison Study Coupled with Identification of Sources
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Long-working-distance Raman system for monitoring of uPA ECR CVD process of thin diamond/DLC layers growth
PublicationW artykule przedstawiono konstrucję systemu optoelektronicznego do monitoringu ramanowskiego in-situ procesu μPA ECR CVD (ang.: Microwave Plasma Assisted Electron Cyclotron Resonance Chemical Vapour Deposition), stosowanego do osadzania cienkich warstw diamentowych i diamentopodobnych DLC. System ma budowę modułową i wyposażony jest w dedykowane sondy optyczne. Przedstawiono wyniki pomiarów testowych, potwierdzjące, że system posiada...
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Application of passive sampling technique for monitoring of BTEX concentration in urban air: Field comparison of different types of passive samplers
PublicationW efekcie przeprowadzonych badań potwierdzono przydatności techniki dozymetrii pasywnej wykorzystywanej na etapie izolacji i wzbogacania analitów do uzyskania informacji o poziomie stężeń zanieczyszczeń z grupy BTEX w powietrzu atmosferycznym na terenie aglomeracji Trójmiejskiej. Dodatkowo, porównano wyniki oznaczeń uzyskanych z wykorzystaniem dwóch typów dozymetrów pasywnych.
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Application examples of wide area monitoring for system operators withinh UCTE = Zastosowanie technologii WAMS w systemie UCTE
PublicationRozrost geograficzny systemów elektroenergetycznych zwiększa prawdopodobieństwo wystąpienia słabo tłumionych kołysań elektromechanicznych. W artykule omawia się zastosowanie systemu WAMS w celu wykrywania tego typu zjawisk i dalej w celu ich eliminacji.
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Environmental problems and health risks with disposable baby diapers: Monitoring of toxic compounds by application of analytical techniques and need of education
PublicationDue to the widespread use of disposable diapers in healthy babies as well as children prone to allergiesand premature babies with reduced immunity, disposable diapers should only be made of non-toxic andnatural ingredients. Unfortunately, disposable diaper manufacturers are reluctant to present their exactchemical composition, claiming that their trade secrets apply. However, several reports show thatdisposable diapers of well-known...
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Monitoring of fatigue damage development in as-received and exploited 10CrMo9-10 power engineering steel supported by Digital Image Correlation
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Full scale measurements of pressure field induced on the quay wall by bow thrusters – indirect method for seabed velocities monitoring
PublicationThe paper presents the results of full-scale experimental investigation of loads generated on the quay wall by bow thrusters during unberthing of a self-manoeuvring vessel. The presented research allowed for the comparison of the measurements results with generally accepted empirical prediction methods and confirmed the utility of the developed measuring setup for the on-line monitoring of jet induced loads. The conclusions from the...
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The evaluation of COD fractionation and modeling as a key factor for appropriate optimization and monitoring of modern cost-effective activated sludge systems
PublicationA study was conducted to characterize the raw wastewater entering a modern cost effective municipal WWTP in Poland using two approaches; 1) a combination of modeling and carbonaceous oxygen demand (COD) fractionation using respirometric test coupled with model estimation (RTME) and 2) flocculation/filtration COD fractionation method combined with BOD measurements (FF-BOD). It was observed that the particulate fractions of COD obtained...
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Automatic Watercraft Recognition and Identification on Water Areas Covered by Video Monitoring as Extension for Sea and River Traffic Supervision Systems
PublicationThe article presents the watercraft recognition and identification system as an extension for the presently used visual water area monitoring systems, such as VTS (Vessel Traffic Service) or RIS (River Information Service). The watercraft identification systems (AIS - Automatic Identification Systems) which are presently used in both sea and inland navigation require purchase and installation of relatively expensive transceivers...
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Monitoring of odors emitted from stabilized dewatered sludge subjected to aging using proton transfer reaction–mass spectrometry
PublicationOne of the potential emission sources of odorous compounds from wastewater treatment plants is sludge processing. The odorous compounds released from dewatered sludge can result in odor nuisance. This study concerns the use of flux hood chamber combined with proton transfer reaction—time of flight—mass spectrometry (PTR-MS) technique for periodical monitoring of odorous compounds emitted from aged, stabilized dewatered sludge samples...
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Monitoring the gas turbine start-up phase on the platform using a hierarchical model based on Multi-Layer Perceptron networks
PublicationVery often, the operation of diagnostic systems is related to the evaluation of process functionality, where the diagnostics is carried out using reference models prepared on the basis of the process description in the nominal state. The main goal of the work is to develop a hierarchical gas turbine reference model for the estimation of start-up parameters based on multi-layer perceptron neural networks. A functional decomposition...
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Novel Vision Monitoring Method Based on Multi Light Points for Space-Time Analysis of Overhead Contact Line Displacements
PublicationThe article presents an innovative vision monitoring method of overhead contact line (OCL) displacement, which utilizes a set of LED light points installed along it. A light point is an, LED fed from a battery. Displacements of the LED points, recorded by a camera, are interpreted as a change of OCL shape in time and space. The vision system comprises a camera, properly situated with respect to the OCL, which is capable of capturing...
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Monitoring Lead Concentration in the Surrounding Environmental Components of a Lead Battery Company: Plants, Air and Effluents—Case Study, Kenya
PublicationLead (Pb) pollution from smelters and lead–acid battery has become a serious problem worldwide owing to its toxic nature as a heavy metal. Stricter regulations and monitoring strategies have been formulated, legislated and implemented in various parts of the world on heavy metal usage. Developed countries such as the USA and in Europe largely operate within the set standards, however, developing countries such as Kenya, Nigeria...
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Corrosion degradation monitoring of ship stiffened plates using guided wave phase velocity and constrained convex optimization method
PublicationThe study presents an experimental investigation on the corrosion degradation level assessment using nondestructive wave-based methods. The degradation level of ship structural elements has been assessed in two different ways. The first one is based on the spectral decomposition and zero-crossing incorporated reconstruction of the dispersion curve approach of the antisymmetric Lamb wave mode and the best matching of the theoretical...
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HEALTH MONITORING OF A COMPRESSION IGNITION ENGINE FED WITH DIFFERENT LOW-SULPHUR MARINE FUELS BY ENDOSCOPIC IMAGE PROCESSING AND ANALYSIS
PublicationThis article characterises the methodology for the endoscopic testing of a laboratory diesel engine used for testing marine fuels. The ‘Shadow’ measurement method used in the XLG3 type EVEREST digital endoscope, for quantitative and qualitative identification of detected surface defects, was approximated. Representative endoscopic images of the elements limiting the working space of the research engine are demonstrated, having...
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Perspectives on Muslim Dress in Poland: A Tatar View
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Excess Gibbs energies and excess molar volumes for binary mixtures: (2-pyr-rolidone+water), (2-pyrrolidone+methanol), and (2-pyrrolidone+ethanol) at the temperature 313.15K
PublicationZmierzono całkowite prężności pary oraz zmiany objętości mieszania dla tytułowych układów dwuskładnikowych w temperaturze 313.15K. Rezultaty zostały porównane z wynikami uzyskanymi poprzednio dla pozostałych amidów N-metylofor-mamidu, N,N-dimetyloformamidu oraz N-metyloacetamidu.
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Corrigendum: Monitoring T-Cell Responses in Translational Studies: Optimization of Dye-Based Proliferation Assay for Evaluation of Antigen-Specific Responses
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Using anticipatory and drug-evoked appetitive ultrasonic vocalization for monitoring the rewarding effect of amphetamine in a rat model of drug self-administration
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Evaluation of Mental Health Services Delivered Before and After the Introduction of Pilot Mental Health Centres in Poland Using Monitoring Indicators.
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Assessment of the Impact of Emitted Radiated Interference Generated by a Selected Rail Traction Unit on the Operating Process of Trackside Video Monitoring Systems
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Non-invasive hemodynamic monitoring as a guide to drug treatment of uncontrolled hypertensive patients: effects on home blood pressure in the BEAUTY study
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Interval estimator for chlorine monitoring in drinking water distribution systems under uncertain system dynamics, inputs and state measurement errors
PublicationThe design of interval observer for estimation of unmeasured state variables for application to drinking water distribution systems is described in this paper. In particular, it considers the design of such observer for estimation of water quality described by free chlorine concentration. An interval observer is derived to produce robust interval bounds on the estimated water quality state variables. The stability and robustness...
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Comparison of GPS tropospheric delays derived from two consecutive EPN reprocessing campaigns from the point of view of climate monitoring
PublicationThe main purpose of this research was to acquire information about consistency of ZTD (zenith total delay) linear trends and seasonal components between two consecutive GPS reprocessing campaigns. The analysis concerned two sets of the ZTD time series which were estimated during EUREF (Reference Frame Sub-Commission for Europe) EPN (Permanent Network) reprocessing campaigns according to 2008 and 2015 MUT AC (Military University...
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PRELIMINARY FIELD TESTS AND LONG-TERM MONITORING AS A METHOD OF DESIGN RISK MITIGATION: A CASE STUDY OF GDAŃSK DEEPWATER CONTAINER TERMINAL
PublicationAppropriate risk assessment plays a fundamental role in the design. . The authors propose a possible method of design risk mitigation, which follows recommendations included in Eurocode 7. The so-called “Observational Method” (OM) can produce savings in costs and programmes on engineering projects without compromising safety. The case study presented is a complex design solution that deals with the heavy foundations of a gantry...
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The issue of uncertainty of visual measurement techniques for long distance measurements based on the example of applying electric traction elements in diagnostics and monitoring
PublicationRail transport is the most economical and energy-effective in the field of land transport, in particular electrified. In order to ensure efficient and reliable operation of electrified rail transport, the issues of monitoring and diagnostics of the traction infrastructure and vehicles are extremely important. The most critical point in the transmission of electric energy to the vehicle is the sliding contact of the current collector...
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Monitoring Steel Bolted Joints during a Monotonic Tensile Test Using Linear and Nonlinear Lamb Wave Methods: A Feasibility Study
PublicationThe structural integrity of steel bolted joints may be compromised due to excessive loading. Therefore, condition assessment and the detection of potential defects before they cause a failure have become a major issue. The paper is focused on the condition monitoring of a bolted lap joint subjected to progressive degradation in a tensile test. The inspection used Lamb waves propagated through the overlap area. Wave propagation...
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The advanced monitoring as a key factor for appropriate optimization and control of full-scale activated sludge systems – case study Debogorze WWTP.
PublicationComputer simulation has become a helpful tool in wastewater treatment systems performance and effectiveness analysis. Advanced monitoring, by using appropriate software, enables to create a mathematical model of a real wastewater treatment plant (WWTP), run a simulation and subsequently interpret results under various conditions. An operation of WWTP is usually controlled by global parameters such as flow, solids retention time,...
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Evaluation of citric acid corrosion inhibition efficiency and passivation kinetics for aluminium alloys in alkaline media by means of dynamic impedance monitoring
PublicationA novel approach is proposed for constructing the adsorption isotherm in corrosion studies, based on a well-known interaction between citric acid and aluminium in alkaline electrolytes. Our approach utilizes the instantaneous impedance measurements via Dynamic Electrochemical Impedance Spectroscopy in galvanostatic mode (g-DEIS). Unlike other common tools, g-DEIS delivers exact information about the concentration required for full...
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Monitoring strategy for industrially contaminated rivers - A study of all year round behaviour of Klodnica river catchment, upper Silesia, Poland
PublicationThe study was undertaken to thoroughly characterise the contamination of water in industrially influenced river Klodnica, in order to explore monitoring strategies in case of limited analytical capacity. Statistical analysis undertaken after a short study was found to be helpful in reducing monitoring efforts in the future.Klodnica river is located within area of dominating coal mining, metallurgy, and additionally being influenced...
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Crack monitoring in concrete beams under bending using ultrasonic waves and coda wave interferometry: the effect of excitation frequency on coda
PublicationConcrete is one of the most widely used construction materials in the world. In recent years, various non-destructive testing (NDT) and structural health monitoring (SHM) techniques have been investigated to improve the safety and control of the current condition of concrete structures. This study focuses on micro-crack monitoring in concrete beams. The experimental analysis was carried out on concrete elements subjected to three-point...
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Monitoring rozwoju regionalnego z wykorzystaniem systemu informacji przestrzennej. Systemy Informacji Przestrzennej w planowaniu i rozwoju regionu.
PublicationOpis struktury monitoringu rozwoju regionalnego z wykorzystaniem Systemu Informacji Przestrzennej. Instytucjonalne warunki funkcjonowania monitoringu.
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Badania eksperymentalne przy wykorzystaniu układu monitoringu dynamicznego oddziaływania odbieraka prądu na sieć trakcyjną
PublicationW ramach projektu badawczego, realizowanego w Zakładzie Trakcji Elektrycznej Politechniki Gdańskiej, opracowano układ służący do punktowego pomiaru oddziaływania odbieraków na sieć trakcyjną. Pomiar jest realizowany w rzeczywistych warunkach eksploatacyjnych - na linii kolejowej o dużym natężeniu ruchu, w odpowiednio wybranym miejscu, w którym pociągi poruszają się ze znaczną prędkością, zaś profil toru i stan torowiska minimalizują...
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Badania eksperymentalne przy wykorzystaniu układu monitoringu dynamicznego oddziaływania odbieraka prądu na sieć trakcyjną
PublicationOpracowany układ monitoringu parametrów technicznych odbieraków prądu ma na celu wykrycie uszkodzonych lub źle wyregulowanych odbieraków w pojazdach znajdujących się w warunkach ruchowych na linii kolejowej. Ocenę stanu technicznego oparto na pomiarze i analizie uniesienia dynamicznego przewodów sieci jezdnej w momencie przejścia odbieraka pojazdu przez punkt pomiarowy. Omówiono zasadę działania stanowiska monitoringu, jego skalowanie...
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Real-Time Monnitoring of Vegetable Oils' Thermal Degradation Using Proton Transfer Reaction Mass Spectrometry
PublicationThe volatile aldehydes, which are generated during frying, can be harmful to human health, therefore the concentration of these compounds in frying fumes should be monitored. In addition, aldehydes are markers of oils’ quality, and so it is possible to determine shelf-life or suitability for frying of these oils. Commonly, in order to determine aldehydes concentration gas chromatography is performed, however it does not allow for...
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BAZYLIKA pw. ŚW. MIKOŁAJA W GDAŃSKU. PRZYKŁAD MONITORINGU I DIAGNOSTYKI ZABYTKOWYCH OBIEKTÓW KUBATUROWYCH
PublicationW artykule opisano przypadek monitorowania stanu technicznego zabytkowego budynku sakralnego po wystąpieniu awarii oraz w trakcie prowadzenia prac remontowych. W celu monitorowania stanu budynku, bezpiecznego prowadzenia prac diagnostycznych, rozpoznania przyczyn awarii oraz bezpiecznego prowadzenia prac remontowych opracowano szczegółowy Program monitorowania obiektu, który został wdrożony do realizacji, funkcjonuje i stanowi...