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Wyniki wyszukiwania dla: MULTI-CHANNEL INSTRUMENT

  • Improving listeners' experience for movie playback through enhancing dialogue clarity in soundtracks

    This paper presents a method for improving users' quality of experience through processing of movie soundtracks. The dialogue clarity enhancement algorithms were introduced for detecting dialogue in movie soundtrack mixes and then for amplifying the dialogue components. The front channel signals (left, right, center) are analyzed in the frequency domain. The selected partials in the center channel signal, which yield high disparity...

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  • Research into the Movements of Surface Water Masses in the Basins Adjacent to the Port

    Publikacja

    - Rok 2016

    This paper presents the results of the practical and simulation research into determining the routes of movement of small objects moving together with surface water masses in basins adjacent to the port. The results of this research were referenced against the modelling of routes of small objects in port channel basins. The results of practical research concerning the movement of small objects in basins adjacent to the port were...

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  • Możliwości wdrożenia strategicznej karty wyników w Instytucie Oceanologii Polskiej Akademii Nauk w Sopocie.

    Publikacja

    - Rok 2004

    Autorzy wskazują strategiczną kartę wyników jako instrument doskonalenia zarządzania instytutem naukowo-badawczym, na przykładzie Instytutu Oceanologii PAN w Sopocie. W opracowAniu podjęto próbę implementacji tej metody w zakresie każdej z czterech perspektyw strategicznej karty wyników, formułując uprzednio cele strategiczne IO PAN. Wskazano także związki przyczynowo-skutkowe sformułowanych celów szczegółowych działalności ze...

  • Applying Fuzzy Logic of Expert Knowledge for Accurate Predictive Algorithms of Customer Traffic Flows in Theme Parks

    This study analyzes two forecasting models based on the application of fuzzy logic and evaluates their effectiveness in predicting visitor expenditure and length of stay at a popular theme park. The forecasting models are based on a set of more than 600 decision rules constructed in the form of a complex series of IF-THEN statements. These algorithms store expert knowledge. A descriptive instrument that records the individual visitor's...

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  • Issues of Measuring the Course of Batch Production Processes

    Publikacja

    In order to meet demands induced by development of manufacturing processes and production systems, new criteria and indicators that would allow a multiple aspect and realistic rating of batch production process courses are necessary. The objective of this paper is to present the correlation between production processes measurement, its rating and production control, basing on case study analysis from production enterprise. A new...

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  • OPTIMISING RIG DESIGN FOR SAILING YACHTS WITH EVOLUTIONARY MULTIOBJECTIVE ALGORITHM

    The paper presents a framework for optimising a sailing yacht rig using Multi-objective Evolutionary Algorithms and for filtering obtained solutions by means of a Multi-criteria Decision Making method. A Bermuda sloop with discontinuous rig is taken under consideration as a model rig configuration. It has been decomposed into its elements and described by a set of control parameters to form a responsive model which can be used...

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  • Project Team Management Supported by an Agent-Based Model

    Publikacja

    This work is a continuation of a series of works about research into the use of multi-agent systems to support IT project management. Previous studies have shown the possibility of using a multi-agent in order to optimize management decisions concerning the selection of methods for project implementation. It was noted that the project manager's decisions are influenced by three fundamental parameters: the entropy of the project,...

  • High catalytic performance of laccase wired to naphthylated multiwall carbon nanotubes

    Publikacja

    - BIOSENSORS & BIOELECTRONICS - Rok 2020

    The direct electrical connection of laccase on the electrode surface is a key feature in the design of efficient and stable biocathodes. However, laccases can perform a direct electron transfer only when they are in the preferable orientation toward the electrode. Here we report the investigation of the orientation of Laccase from Amano on multi-walled carbon nanotube surface modified with naphthalene group. Naphthylated multi...

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  • Using A Particular Sampling Method for Impedance Measurement

    The paper presents an impedance measurement method using a particular sampling method which is an alternative to DFT calculation. The method uses a sine excitation signal and sampling response signals proportional to current flowing through and voltage across the measured impedance. The object impedance is calculated without using Fourier transform. The method was first evaluated in MATLAB by means of simulation. The method was...

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  • New Method for Determination of Adjustment Corrections for Crane Rail Axes

    Electronic tacheometers are currently a standard instrument used in geodetic work, including also geodetic engineering measurements. One of the many applications of tacheometers in engineering geodesy are 3D control measurements of crane rail axes. This paper proposes a new method of computing adjustment corrections for crane rail axes based on 3D polar measurements performed with an electronic tacheometer. The intermediary method...

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  • Synchronic digital stereophotography and photogrammetric analyses in monitoring the flow of liquids in open channels

    Publikacja

    - Rok 2014

    The authors present the results of their research into photogrammetric documents based on synchronic digital images. Examples presented in the paper indicate the value of synchronic stereophotography in registering phenomena connected with liquids. Combining synchronic stereophotography with photogrammetric methods has allowed the authors to develop an application useful for monitoring the flow of a liquid in an open channel.

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  • System eLoran w Europie

    W artykule przedstawiono historię powstania oraz stan aktualny systemu eLoran w Europie. Opisano także strukturę sygnałów Loran-C i sposób transmisji danych w rozwiązaniach Eurofix i Loran Data Channel, a także plany rozwojowe systemu w różnych częściach świata.

  • A Nyquist filter of fractional delay

    Publikacja

    In the paper a novel discrete-time FIR fractonal delay specjal filter is investigated. This is a Nyquist filter which, besides the traditional its attribute (interymbol interference (ISI) free property), has the ability to compensate for subsample transmission delay involved, for example, in multipath propagation channel. The performance of the filter is analysed and illustrated.

  • Thermal-FSI modeling of flow and heat transfer in a heat exchangerbased on minichanels

    Publikacja

    - Journal of Power Technologies - Rok 2017

    In this paper selected numerical modelling problems for an advanced thermal-FSI ("Fluid Solid Interaction") mini-channel heat exchanger model are presented. Special attention is given to the heat transfer between the separated mediums for different mass flows. Similar modelling problems have also been discussed in the literature dedicated to numerical and theoretical modelling problems for typical heat exchangers [1, 2, 3]. Basic...

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  • Hydraulic resistance analyses of selected elements of the prototype Stirling engine

    The paper presents the results of simulation tests of hydraulic resistance and temperature distribution of the prototype Stirling alpha engine supplied with waste heat. The following elements were analyzed: heater, regenerator and cooler. The engine uses compressed air as a working gas. Analyses were carried out for three working pressure values and different engine speeds. The work was carried out in order to optimize the configuration...

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  • User Orientation Detection in Relation to Antenna Geometry in Ultra-Wideband Wireless Body Area Networks Using Deep Learning

    Publikacja

    - SENSORS - Rok 2024

    In this paper, the issue of detecting a user’s position in relation to the antenna geometry in ultra-wideband (UWB) off-body wireless body area network (WBAN) communication using deep learning methods is presented. To measure the impulse response of the channel, a measurement stand consisting of EVB1000 devices and DW1000 radio modules was developed and indoor static measurement scenarios were performed. It was proven that for...

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  • Software Agents for Computer Network Security

    Publikacja

    - Rok 2012

    The chapter presents applications of multi-agent technology for design and implementation of agent-based systems intended to cooperatively solve several critical tasks in the area of computer network security. These systems are Agent-based Generator of Computer Attacks (AGCA), Multi-agent Intrusion Detection and Protection System (MIDPS), Agent-based Environment for Simulation of DDoS Attacks and Defense (AESAD) and Mobile Agent...

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  • Badanie wierności brzmienia dźwięku instrumentów wirtualnych VST/TRTAS

    Publikacja

    Tematem referatu jest subiektywne badanie wierności brzmienia instrumentów wirtualnych (VST/TRTAS) wykorzystujących próbkowanie dźwięków rzeczywistych instrumentów muzycznych. Na potrzeby przedstawionej pracy wybrano kilka utworów muzyki orkiestrowej z epoki romantyzmu i klasycyzmu, nagranych przy użyciu instrumentów akustycznych. Następnie zaaranżowano fragmenty tych utworów, wykorzystując do tego instrumenty wirtualne i efekty...

  • The Transmission Protocol of Sensor Ad Hoc Networks

    Publikacja

    - Rok 2015

    This paper presents a secure protocol for a radio Ad Hoc sensor network. This network uses the TDMA multiple access method. The transmission rate on the radio channel is 57.6 kbps. The paper presents the construction of frames, types of packets and procedures for the authentication, assignment of time slots available to the node, releasing assigned slots and slots assignment conflict detection.

  • Monitoring of Odour Nuisance from Landfill Using Electronic Nose

    The paper presents the results of investigation on classification of atmospheric air samples collected in a vicinity of municipal landfill with respect to their odour nuisance. The research was conducted using a prototype of electronic nose instrument and a commercial electronic nose of Fast/Flash GC type –HERACLES II. The prototype was equipped with a set of six semiconductor sensors by FIGARO Co.. Classification of the air samples...

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  • Transient States during Short-circuit in a Line Powered by UPS and its Impact on Earth Fault Loop Impedance Measurement and Power Quality

    Publikacja

    The short-circuit in a line powered by Uninterruptible Power Supply (UPS) during different UPS operation modes is presented in the article. The transient state condition related to the short-circuit in a line fed from double conversion On-line UPS is discussed in detail. The results of the measurements of earth fault loop impedance (FLI) in circuits powered by UPS with the instruments of various manufacturers are presented. The...

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  • Likwidacja suchego doku przy Nabrzeżu Przemysłowym w Porcie Gdańsk

    Publikacja

    W niniejszej pracy przedstawiono problemy techniczne związane z likwidacją dużego obiektu hydrotechnicznego, stanowiącego utrudnienie nawigacyjne w intensywnie eksploatowanym portowym kanale dostępowym w Porcie Gdańsk. Dwukomorowy dok zlokalizowany przy Nabrzeżu Przemysłowym wybudowano w latach 1970-1972. Komory dokowe służyły do budowy żelbetowych, pływających skrzyń falochronowych, na potrzeby budowanego w tym czasie Portu Północnego....

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  • Examination of 5G NR, LTE, and NB-IoT Radio Interfaces and Their Vulnerabilities to Interference

    Modern cellular wireless communication systems of the fourth (4G) and fifth generation (5G) face a problem of various types of interference or intentional jamming. Consequently, a degradation of the services provided and an incorrect network operation may occur. In this paper, configuration of the networks’ physical layer is investigated, with the said investigation preceded by the measurement of parameters of commercial networks...

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  • Analysis of diagnostic informativeness of the exhaust temperature of a naval gas turbine

    Publikacja

    - Rok 2011

    The conducted investigations aimed to carry out an analysis of the possibility that the failures identification in the automatic control system of a gas turbine engine could be worked out on the basis of measurements of the exhaust stream temperature behind the gas generator. The exhaust temperature represents a basic control parameter, enabling technical state evaluation of the engine within the operation process, which is observed...

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  • The secure transmission protocol of sensor Ad Hoc network

    The paper presents a secure protocol of radio Ad Hoc sensor network. This network operates based on TDMA multiple access method. Transmission rate on the radio channel is 57.6 kbps. The paper presents the construction of frames, types of packets and procedures for the authentication, assignment of time slots available to the node, releasing assigned slots and slots assignment conflict detection.

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  • The Analysis of Cross-Polarisation Discrimination for Body Area Networks in Cylindrical Metallic Environment

    Publikacja

    The analysis of cross-polarisation discrimination for Body Area Networks in an untypical environment of cylindrical metallic room has been performed in the paper. This analysis was done based on the measurements carried out for dynamic narrowband off-body channels operating at the frequency of 2.45 GHz. The results have shown that there is a strong dependence of the depolarisation effect on the existence of direct component in...

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  • Wyznaczanie odpływu ze zlewni niekontrolowanych Kanału Raduni podczas powodzi w 2001 r.

    Metoda SCS (ang. Soil Conservation Service) pozwalająca wyznaczyć wysokość opadu efektywnego. Metoda geomorfologicznego hydrogramu jednostkowego do wyznaczenia hydrogramu odpływu ze zlewni niekontrolowanej. Aplikacja metody do sytuacji w zlewni Kanału Raduni na przykładzie powodzi z 2001 roku. Wyniki obliczeń dla potoków zasilających Kanał Raduni, odniesienie uzyskanych przepływów do dopływu z 2001 roku.

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  • Comparison of different types of electronic nose instruments for evaluation of odour nuisance from landfill

    Publikacja

    The paper presents and compares the results of investigation on classification of atmospheric air samples collected in a vicinity of municipal landfill with respect to their odour nuisance. The research was conducted using a prototype of electronic nose instrument and a commercial electronic nose of Fast/Flash GC type – HERACLES II. The prototype was equipped with six semiconductor sensors of TGS type. Classification of the air...

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  • Comparison of Quality Evaluation of Agricultural Distillates Using Prototype of Electronic Nose and Fast/Flash GC

    The paper presents the results of investigation on quality evaluation of agricultural distillates using a prototype of electronic nose instrument and a commercial electronic nose of Fast/Flash GC type – HERACLES II. The prototype was equipped with a set of six semiconductor sensors by FIGARO Co.. In case of the prototype volatile fraction of the agricultural distillate was prepared via barbotage process. HERACLES II analysed the...

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  • The ranks of Japanese industrial sectors: 2005-2011

    The purpose of the current study is to expand the previous study which analyzes the industrial sectors ranks of specific countries. More specifically, the study aims to conduct a comparison in terms of the ranks of Japanese industrial sectors on the specific analysis period. The analysis period of the study is 2005-2011. Using the previous study as a reference, the study employs the Input-Output (IO) approach as an analysis instrument....

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  • The ranks of Japanese industrial sectors: 2005-2011

    Publikacja

    - Rok 2017

    The purpose of the current study is to expand the previous study which analyzes the industrial sectors ranks of specific countries. More specifically, the study aims to conduct a comparison in terms of the ranks of Japanese industrial sectors on the specific analysis period. The analysis period of the study is 2005-2011. Using the previous study as a reference, the study employs the Input-Output (IO) approach as an analysis instrument....

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  • Funkcje prawa w procesie reform oświaty lat 90.

    Publikacja

    - Rok 2002

    Artykuł ma na celu przedstawienie związków pomiędzy ogólnymi funkcjami systemu prawa a procesem reform, które zostały przeprowadzone w polskim systemie oświaty w latach 90-tych XX wieku. Regulacje prawne odgrywają bardzo istotną rolę w procesie planowania i realizacji zmian systemowych w różnych dziedzinach życia społecznego. Stanowią one główny instrument procesów reform,w tym reformy systemu edukacji. Kształtowanie i...

  • GROUP COMPOSER - System for Modeling Agents’ Team Building for Tasks

    Multi-agent systems consist of many autonomous units, called agents, that can interact when trying to achieve their goals. The selection of interaction partners is called team formation. Three basic approaches can be considered to match multi-agent system resources to the problem at hand. To research the properties of different approaches, a software for modeling team formation in multi-agent systems has been created and is presented...

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  • Optimising Sequencing Batch Reactor Operation Cycle Planning Using Evolutionary Algorithm

    Publikacja

    The objective of this research was to optimise the operation cycle of the Sequencing Batch Reactor (SBR). Appropriate time balances of aerobic to anaerobic phases, as well as a set dissolved oxygen level are the key to ensuring the quality of effluent from the wastewater treatment process. The proposal to solve this optimisation problem was based on multi-objective optimisation using an evolutionary multi-objective optimisation...

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  • Using wavelet techniques for multibeam sonar bathymetry data compression

    Multibeam sonars are widely used in applications like high resolution bathymetry measurements or underwater object imaging. One of the significant problems in multibeam sensing of the marine environment is large amount of data which must be transmitted from the sonar processing unit to an operator station using a limited bit rate channel. For instance, such a situation would be in the case when the multibeam sonar was mounted on...

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  • On the compression of multibeam sonar raw bathymetry data

    Publikacja

    Multibeam sonars are widely used in applications like high resolution bathymetry measurements or underwater object imaging. One of the significant problems in multibeam sensing of the marine environment is large amount of data which must be transmitted from the sonar processing unit to an operator station using a limited bit rate channel. For instance, such a situation would be in the case when the multibeam sonar was mounted on...

  • Analysis of Impulse Responses Measured in Motion in a Towing Tank

    Publikacja

    - Electronics - Rok 2022

    The growing interest in developing autonomous underwater vehicles (AUVs) and creating underwater sensor networks (USNs) has led to a need for communication tools in underwater environments. For obvious reasons, wireless means of communication are the most desirable. However, conducting research in real conditions is troublesome and costly. Moreover, as hydroacoustic propagation conditions change very significantly, even during...

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  • Analysis of Impulse Responses Measured in Motion in a Towing Tank

    Publikacja

    - Rok 2023

    The growing interest in developing autonomous underwater vehicles (AUVs) and creating underwater sensor networks (USNs) has led to a need for communication tools in underwater environments. For obvious reasons, wireless means of communication are the most desirable. However, conducting research in real conditions is troublesome and costly. Moreover, as hydroacoustic propagation conditions change very significantly, even during...

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  • POTENCJALNE MOŻLIWOŚCI APLIKACJ TECHNIKI E-NOS W DIAGNOSTYCE MEDYCZNEJ=APPLICATION POTENTIALITIES OF E-NOSE TECHNIQUE IN MEDICAL DIAGNOSTICS

    Publikacja

    - Rok 2013

    W pracy przedstawiono i omówiono zasadę działania instrumentu analitycznego - elektronicznego nosa (e-nos) zdolnego rozróżnić i sklasyfikować intensywność zapachu. Urządzenia te służą do automatycznej analizy i rozróżniania próbek zapachowych o złożonym składzie, do rozpoznawania ich charakterystycznych właściwości i najczęściej przeznaczone są do szybkiej analizy jakościowej. Dzięki unikatowym właściwościom technika ta znalazła...

  • Efficient bounds on quantum-communication rates via their reduced variants

    Publikacja

    - PHYSICAL REVIEW A - Rok 2010

    We investigate one-way communication scenarios where Bob operating on his component can transfer some subsystem to the environment. We define reduced versions of quantum-communication rates and, further, prove upper bounds on a one-way quantum secret key, distillable entanglement, and quantum-channel capacity by means of their reduced versions. It is shown that in some cases they drastically improve their estimation.

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  • Instantaneous complex frequency for pipeline pitch estimation

    Publikacja
    • M. [. Kaniewska

    - Rok 2010

    In the paper a pipeline algorithm for estimating the pitch of speech signal is proposed. The algorithm uses instantaneous complex frequencies estimated for four waveforms obtained by filtering the original speech signal through four bandpass complex Hilbert filters. The imaginary parts of ICFs from each channel give four candidates for pitch estimates. The decision regarding the final estimate is made based on the real parts of...

  • Identyfikacja instrumentu muzycznego z nagrania fonicznego za pomocą sztucznych sieci neuronowych

    Publikacja

    - Rok 2024

    Celem rozprawy jest zbadanie algorytmów do identyfikacji instrumentów występujących w sygnale polifonicznym z wykorzystaniem sztucznych sieci neuronowych. W części teoretycznej przywołano podstawy przetwarzania sygnałów fonicznych w kontekście ekstrakcji parametrów sygnałów wykorzystywanych w treningu sieci neuronowych. Dodatkowo dokonano analizy rozwoju metod uczenia maszynowego z uwzględnieniem podziału na sieci neuronowe pierwszej,...

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  • Modelowanie przepływu pary przez okołodźwiękowe wieńce turbinowe z użyciem sztucznych sieci neuronoych

    Publikacja

    Niniejszy artykuł stanowi opis modelu przepływu pary przez okołodźwiękowe stopnie turbinowe, stworzonego w oparciu o sztuczne sieci neuronowe (SSN). Przedstawiony model neuronowy pozwala na wyznaczenie rozkładu wybranych parametrów w analizowanym przekroju kanału przepływowego turbiny dla rozpatrywanego zakresu wartości ciśnienia wlotowego.

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  • Natural convection in symmetrically heated vertical channels

    The study describes natural convection through a vertical channel, open on four sides and bound by two isothermal walls. Both balancing and infrared experimental investigations were performed in air (Pr = 0.71) to estimate the impact of channel width s and wall-to-ambient temperature difference (tw - t∞) on natural convective heat transfer, the formation of air flow patterns and the rate of flow pattern formation. The study was...

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  • VARIABLE KINEMATICS OF HONING PROCESS – INFLUENCE ON MACHINED WORKPIECE

    Publikacja

    - Rok 2018

    Surface quality of holes plays an important role in machine manufacturing industry especially in the production of car engines and hydraulic cylinders. Investigations of honing process were carried out by 6 years on horizontal CNC Sunnen’s honing machine HTH 4000S, on vertical conventional honing machine WMW’s SZS 200 and on CNC milling machine of Haas VF 3SS with equipment of Honingtec for honing. Measurements of cylindricity...

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  • Compressible gas density measurement by means of Fourier analysis of interferograms

    Publikacja

    - MEASUREMENT - Rok 2022

    This paper describes a method for nonintrusive compressible gas density measurement by means of automated analysis of interferograms using FFT (Fast Fourier Transform), and its implementation using DFT (Discrete Fourier Transform), that does make this measurement technique a fairly valuable and accessible experimental method. The presented approach makes it possible to use the finite fringe setting of the interferometer, thus reducing...

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  • Asynchronous WAM with Irregular Pulse Repetition

    Radiolocation systems for aviation based on Multi-Lateration (MLAT) typically use a set of synchronised ground sensors to receive radio signals broadcast by onboard transmitters. In most cases, the sensor synchronisation in Wide Area Multi-Lateration Systems (WAM) is provided by Global Navigation Satellite System (GNSS) receivers. However, in the case of synchronisation failure, there is still a possibility to estimate the coordinates...

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  • Nodal models of Pressurized Water Reactor core for control purposes – A comparison study

    The paper focuses on the presentation and comparison of basic nodal and expanded multi-nodal models of the Pressurized Water Reactor (PWR) core, which includes neutron kinetics, heat transfer between fuel and coolant, and internal and external reactivity feedback processes. In the expanded multi-nodal model, the authors introduce a novel approach to the implementation of thermal power distribution phenomena into the multi-node...

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  • IoT for healthcare applications

    Publikacja
    • K. Sayrafian
    • S. J. Ambroziak
    • D. Bajic
    • L. Berbakov
    • L. M. Correia
    • K. Cwalina
    • C. Garcia-pardo
    • G. Gardašević
    • K. Katzis
    • P. Kulakowski
    • K. Turbic

    - Rok 2021

    This chapter summarizes IRACON contributions related to the application of IoT in healthcare. It consists of the following three sections. Section 8.1 presents the measurement campaigns and the related statistical analysis to obtain various channel models for wearable and implantable devices. In addition, the importance of physical human-body phantoms used for channel, Specific Absorption Rate (SAR), and Electromagnetic (EM) exposure...

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  • Low-Voltage Low-Power Filters with Independent ω0 and Q Tuning for Electronic Cochlea Applications

    An acoustic second-order low-pass filter is proposed for filter banks emulating the operation of a human cochlea. By using a special filter structure and an innovative quality (Q)-factor tuning technique, an independent change of the cutoff frequency (ω0) and the Q-factor with unchanged gain at low frequencies is achieved in this filter. The techniques applied result in a simple filter design with low Q-factor sensitivity to component...

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