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Evaluation of pitting corrosion by means of dynamic electrochemical impedance spectroscopy
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Evaluation of excessive noise effects on hearing employing psychoacoustic dosimetry
PublikacjaResearch results regarding the noise impact on hearing applying the concept of the Psychoacoustic Noise Dosimetry (PND) are presented. The general characteristics of the PND algorithm are discussed. Additionally, the results of hearing examinations conducted in the laboratory conditions are shown. The main objective of the research was to determine the time needed for the Temporary Threshold Shift to reverse. The results were used...
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Modular wireless sensor network platform for RF transceiver evaluation
PublikacjaArtykuł przedstawia modułową technikę projektowania sieci sensorów bezprzewodowych. Uniwersalne połączenia występujące pomiędzy modułami pozwalają na zaprojektowanie nowej wersji sieci w przeciągu kilku dni zamiast tygodni. Na bazie wymienionej metodologii skonstruowane została platforma pozwalająca testować różnego rodzaju układy nadawczo odbiorcze pracujące na częstotliwościach RF.
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Testing of the evaluation methodology for Ship's Planned Maintenance System Database
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Evaluation of specific capacity of poultry litter in heavy metal sorption
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Evaluation of Foundation Input Motions Based on Kinematic Interaction Models
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Design and evaluation of a flow-to-frequency converter circuit with thermal feedback
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Evaluation of Temporal Leachability of Strontium from Building Materials to Environment
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STATISTICAL EVALUATION OF FAMILIAL RISK FACTORS IN TYPE 1 DIABETES
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Dosimetric evaluation of a novel polymer gel dosimeter for proton therapy
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Performance Evaluation of an Axial Flux Machine with a Hybrid Excitation Design
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Evaluation of dampness-induced strength reduction of calcium silicate blocks
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Application of algorithms for reasoning from imperfect knowledge in it evaluation environment
PublikacjaThe paper describes concept of building multi-agent system dedicated for information technology evaluation or selection for IT enterprises management (IT_MAS). Authors present the model of Knowledge Processing Environment, which is one of main components of the solution. Either facts or rules will be based on IT specialists' experience. However, knowledge which is being acquisited from IT domain is mostly imperfect - uncertain...
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Verification of the criteria for evaluation of water and frost resistance of asphalt concrete
PublikacjaThe paper presents the results of field investigation - condition survey of existing pavements and the results of laboratory tests on water and frost resistance of samples cored from the these pavements. The purpose of testing was to verify the criteria for evaluation of the resistance of asphalt concrete to the action of water and frost by way of comparing the results of field and laboratory tests, followed by evaluation of their...
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Automatic evaluation of information credibility in Semantic Web and Knowledge Grid
PublikacjaThis article presents a novel algorithm for automatic estimation of information credibility. It concerns information collected in Knowledge Grid and Semantic Web. Possibilities to evaluate the credibility of information in such structures are much greater than those available for WWW sites which use natural language. The rating system presented in this paper estimates credibility automatically on the basis of the following metrics:...
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Potentiometric detection of organic ionics in separation methods: a critical evaluation
PublikacjaCzujniki potencjometryczne są w tej chwili stosowane głównie w połączeniu ze wstrzykową analizą przepływową. Badano membranowe czujniki potencjometryczne pod względem zastosowania w połączeniu z wysokosprawną chromatografią cieczową i elektroforezą kapilarną. Stosowano anality takie jak środki powierzchniowo czynne i proste leki. Zauważono, że czujniki potencjometryczne dają dobre odpowiedzi na małe i duże jony z ładunkiem wielokrotnym...
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Evaluation of conductive-to-resistive layers interaction in thick-film resistors
PublikacjaSpektroskopia szumowa w zakresie małych częstotliwości jest używana do badania oddziaływania warstwy rezystywnej i przewodzącej w wytwarzanych rezystorach grubowarstwowych. Wprowadzono dwa parametry szumowe do określania stopnia tego oddziaływania. Opisano wyniki przeprowadzonych badań oddziaływania warstw z dwutlenku rutenu, rutenku bizmutu z kontaktami ze złota, platyna-złoto, pallad-srebro, od różnych producentów.
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Model of management of knowledge bases in the information technology evaluation environment
PublikacjaThe paper presents the model of management of knowledge bases in multi-agent system for evaluation of information technologies (IT_MAS). Such system is being developed in Gdansk Uni-versity of Technology by Information Technology Management Team. Multi-agent system is supposed to support manager level specialists during decision processes when there is identified need to buy or change any information technology. The main goal of...
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Implementation and performance evaluation of the agent-based algorithm for ANN training
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Measurement accuracy evaluation of transmission line earthings by impulse tests
PublikacjaUziemienia słupów linii energetycznych powinny być sprawdzane okresowo. Pomiary rezystancji takich uziemień przy pomocy metody niskoczęstotliwościowej wymaga wyłaczania linii i odkręcania przewodów odprowadzających od konstrukcji słupa. Metoda udarowa jest znacznie łatwiejsza w tej aplikacji i nie wymaga wyłaczania linii na czas pomiarów. W pracy oszacowano wpływ uziemień sąsiednich słupów na dokładność pomiarów metodą udarową.
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Application of guided waves in the evaluation of steel-concrete adhesive connection
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The development and evaluation of cross-priming amplification for the detection of avian reovirus
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e-Commerce Websites and the Phenomenon of Dropshipping: Evaluation Criteria and Model
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Evaluation of Supply Chain Management Systems Used in Civil Engineering
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Environmental degradation of titanium biomaterials: mechanisms, effects, testing and evaluation
PublikacjaPrzedyskutowano możliwe przyczyny oraz mechanizmy degradacji biomateriałów tytanowych, używanych jako długoterminowe implanty stawów. Dokonano przeglądu wpływu impalntów metalicznych w ludzkim ciele. Przedstawiono bieżące procedury badania oraz ich wady. Zaproponowano procedurę oszacowania biomateriałów na implanty.
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Sensitivity evaluation of Krakowiec clay based on time-dependent behavior
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Evaluation of Inoculated Waste Biological Stabilization Degree by Olfactometric Methods
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Evaluation of Sustainable Development of Tourism in Selected Cities in Turkey and Poland
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PhageScore: A simple method for comparative evaluation of bacteriophages lytic activity
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Crowdsourcing-Based Evaluation of Automatic References Between WordNet and Wikipedia
PublikacjaThe paper presents an approach to build references (also called mappings) between WordNet and Wikipedia. We propose four algorithms used for automatic construction of the references. Then, based on an aggregation algorithm, we produce an initial set of mappings that has been evaluated in a cooperative way. For that purpose, we implement a system for the distribution of evaluation tasks, that have been solved by the user community....
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Criteria for evaluation and selection of the best offer for the Contract Engineer service
PublikacjaThe purpose of the legal regulations regarding public procurement in EU countries is to ensure effective funds' spending. When assessing and selecting the best offer, the contracting entities have at their disposal many different criteria, including non-price criteria. Their proper selection and application is necessary to ensure the high quality of the ordered product, delivery or service. Making an order for intellectual services,...
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Evaluation of Selected UX Techniques by Product Managers - A Preliminary Survey
PublikacjaIn this paper we present the results of an opinion survey among 28 IT product managers who evaluated the subjective usefulness of 24 selected UX techniques to 6 IT product management tasks derived from ProdBOK®. We selected the UX techniques based on the literature review and 6 interviews with experienced IT product managers. Based on the survey results, we propose our recommendation of useful techniques for 5 of the 6 studied...
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Evaluation of Foundation Input Motions Based on Kinematic Interaction Models
PublikacjaThe present study was designed to demonstrate the importance of baseslab averaging and embedment effects on the foundation-level input motions due to earthquake excitations. Evaluation of foundation-level input motions based on the most commonly adopted kinematic interaction models are presented. In order to conduct this investigation, original records of horizontal accelerations for two casestudy buildings were utilized. Computed...
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Evaluation of Lombard Speech Models in the Context of Speech in Noise Enhancement
PublikacjaThe Lombard effect is one of the most well-known effects of noise on speech production. Speech with the Lombard effect is more easily recognizable in noisy environments than normal natural speech. Our previous investigations showed that speech synthesis models might retain Lombard-effect characteristics. In this study, we investigate several speech models, such as harmonic, source-filter, and sinusoidal, applied to Lombard speech...
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Application of the LifeRoSE method in funcionality evaluation of road safety equipment
PublikacjaThe article presents a mathematical model of the life cycle estimation method of road safety equipment. Then the model was adjusted to estimate the life cycle costs of the chosen horizontal road marking. Using the LCC method, the functionality of the horizontal marking was evaluated in terms of efficiency, durability and economic effectiveness. The article also presents the impact of selected factors on the life cycle costs of...
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Analysis and evaluation of grouping methods for effective cutting tool operation
PublikacjaThis article presents the possibilities for using cluster analysis in the assignment of machine tools in automated manufacturing systems. Based on the similarity of manufacturing processes in the system, cutting tools have been grouped. The objective was to obtain groups of similar objects, which could potentially ensure the reduction of the frequency and time of setups, optimizing the maintenance of tool resources and improving...
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Basic evaluation of limb exercises based on electromyography and classification methods
PublikacjaSymptoms caused by cerebral palsy or stroke deprive a person partially or even completely of his ability to move. Nowadays we can observe more technologically advanced rehabilitation devices which incorporate biofeedback into the process of rehabilitation of such people. However, there is still a lack of devices that would analyse, assess, and control (independently or with limited support) specialised movement exercises. Here...
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Performance Evaluation of Control Plane Functions in ASON/GMPLS Architecture
PublikacjaIt is assumed that demands of information society could be satisfied by architecture ASON/GMPLS comprehended as Automatically Switched Optical Network (ASON) with Generalized Multi-Protocol Label Switching (GMPLS) protocols. Introduction this solution must be preceded performance evaluation to guarantee society expectations. Practical realization is expensive and simulations models are necessary to examine standardized propositions....
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Evaluation of the fast impedance spectroscopy method in the laboratory measurement system
PublikacjaIn this paper the method for fast impedancespectroscopy of technical objects with very high impedance(|Zx| ≥ 1 GΩ) is evaluated by means of simulation and practicalexperiment. The method is based on excitation of an object, witha square pulse and measurements of voltage and currentresponses with DAQ card. The object impedance spectrum isobtained with use of continuous Fourier transform. Someimprovements of the method concerned...
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Distributed System For Noise Threat Evaluation Based On Psychoacoustic Measurements
PublikacjaAn innovative system designed for the continuous monitoring of acoustic climate of urban areas was presentedin the paper. The assessment of environmental threats is performed using online data, acquired through a grid ofengineered monitoring stations collecting comprehensive information about the acoustic climate of urban areas.The grid of proposed devices provides valuable data for the purpose of long and short time acoustic climateanalysis....
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Conception of interactive information and decision support system - model and evaluation
PublikacjaThis article presents conception of interactive information and decision support system for urban and industrial air quality management. The emphasis of the project is on real-time analysis and multi-media information, and support of distributed and mobile clients through the Internet.
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Imminent threats analysis and security level evaluation in social networks
PublikacjaRozprawa doktorska poświęcona jest analizie nadciągających zagrożeń w sieciach społecznych. Dotyczy to takich zjawisk jak spam, phishing, kradzież tożsamości czy ataki na systemy reputacji w serwisach aukcji internetowych. W pracy zaproponowano metodę pozwalającą na wczesne wykrycie zagrożeń w sieciach społecznych w oparciu o zdefiniowane modele zachowań aktorów sieci. Modele zachowań tworzone są za pomocą podgrafów wzorcowych...
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Quality Evaluation of Novel DTD Algorithm Based on Audio Watermarking
PublikacjaEcho cancellers typically employ a doubletalk detection (DTD) algorithm in order to keep the adaptive filter from diverging in the presence of near-end speech signal or other disruptive sounds in the microphone signal. A novel doubletalk detection algorithm based on techniques similar to those used for audio signal watermarking was introduced by the authors. The application of the described DTD algorithm within acoustic echo cancellation...
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An evaluation of effectiveness of fuzzy logic model in predicting the business bankruptcy
PublikacjaW artykule sprawdzono skuteczność pojedynczego modelu logiki rozmytej w prognozowaniu ryzyka upadłości przedsiębiorstw w Polsce. W badaniach wykorzystano wartości 14 wskaźników finansowych oraz ich dynamikę zmiany między pierwszym a drugim, drugim a trzecim oraz trzecim a czwartym rokiem objętymi analizą. We wnioskach omówiono różnicę w skutecznościach modelu uzyskanego na wartościach statycznych oraz dynamicznych wskaźników finansowych....
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Moving object tracking algorithm evaluation in autonomous surveillance system
PublikacjaResults of evaluation of video object tracking algorithm being a part of an autonomous surveillance system are presented. The algorithm was investigated employing a set of benchmarks recorded locally. The precision of object detection, evaluated with such metrics as fragmentation, object area recall and object precision, is in focus. The experiments aimed at examining the detection quality using various object detection algorithm...
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Evaluation of physiological and physical activity by means of a wireless multi-sensor
Publikacjamonitorowanie osób starszych, upośledzonych ruchowo i/lub rekonwalescentów w warunkach domowych jest dynamicznie rozwijającą się dyscypliną nauki i techniki. szczególnego znaczenia nabierają systemy przeznaczone dla osób starszych żyjących samotnie. w pracy przedstawiono zintegrowany system umożliwiający monitorowanie wybranych parametrów fizjologicznych (ekg, ikg, resp) oraz aktywności fizycznej za pomocą akcelerometru. działanie...
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Evaluation of sorption capabilities of biopolymeric microspheres by the solid-phase extraction
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Laser photoplethysmography in integrated evaluation of collateral circulation of lower extremities
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Usage of Memi-Markov Process in Operation Evaluation of Diesel Engine
PublikacjaIn paper, the proposition of quantitative evaluation of operation using semi-Markov processes theories has been presented. Basic assumptions, essential for creating mathematical model on example of diesel engine were shown. Special attention was given to practical aspects of using established mathematical model. Example of characteristic of analysed process - temporary distribution of probability was assigned.
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Evaluation of reformer tubes degradation after long term operation
PublikacjaPurpose of this paper is to show the effect of long-term service at elevated temperatures on microstructural changes of cast steel reformer tubes made of the alloy IN-519 (24%Cr, 24%Ni, Nb). The relationship between mechanical properties and microstructure degradation is discussed. Investigations were performed on five tubes taken from ammonia reformer furnace. Tubes worked at temperature of 880C and 3,2 MPa pressure. The operation...