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Search results for: RUTING QOS
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Emotion Recognition Using Physiological Signals
PublicationIn this paper the problem of emotion recognition using physiological signals is presented. Firstly the problems with acquisition of physiological signals related to specific human emotions are described. It is not a trivial problem to elicit real emotions and to choose stimuli that always, and for all people, elicit the same emotion. Also different kinds of physiological signals for emotion recognition are considered. A set of...
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Miniaturized impedance analyzer using AD5933
PublicationThe paper presents the analyzer allowing to measure impedance in a range of 10 ohms <|Zx|<10 Gohms in a wide frequency range from 10 mHz up to 100 kHz. The device specific features are: miniaturization, low power consumptions and the use of impedance measurement method based on DSP. These features were possible thanks to the use of newest generation of large scale integration chips: e.g. „system on a chip” microsystems (AD5933)...
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The Zręb Tower proposals for saving the ruins
PublicationZabytkowa baszta pod Zrębem w latach siedemdziesiątych XX wieku uległa awarii, zawalił się dach oraz częściowo ściany. W pracy przedstawiono propozycje zabezpieczenia budowli przed postępującą destrukcją.
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On using digital photos in a structure rehabilitation.
PublicationPraca dotyczy metody optycznego pomiaru ugięć w konstrukcjach inżynierskich na podstawie fotografii cyfrowych.
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Control of the cultivation of cartilages for using in the biobearings.
PublicationBiotribologiczne charakterystyki biołożysk są zależne od procesu hodowli żywej tkanki chrząstki w bioreaktorze. Z kolei proces ten, jest wielowymiarowym procesem dynamicznym sterowanym za pomocą odpowiedniego układu automatycznej regulacji. Praca przedstawia prawo i algorytm sterowania takiego procesu. W tym celu zastosowano sztuczne sieci neuronowe (Artificial Neural Networks - ANN) i zaprezentowano wyniki obliczeń.
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A Model for Low Frequency Noise Generation in MOSFETs.
PublicationPrzedstawiono model generacji szumów małoczęstotliwosciowych tranzystora MOS. Model został użyty do symulacji szumów cienkotlenkowych tranzystorów MOS. Wyniki symulacji porównano z danymi pomiarowymi. Zaprezentowano sposób wykorzystania pomiarów szumów m.cz. do wyznaczania niektórych parametrów charakteryzujących tranzystory MOS.
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BENEFITS FROM BREAKING UP WITH LINUX NATIVE PACKET PROCESSING WHILE USING INTEL DPDK LIBRARIES
PublicationThe Intel Data Plane Development Kit (DPDK) is a set of libraries and drivers for fast packet processing in Linux. It is a dedicated framework for building efficient high-speed data plane applications supporting QoS features with poll mode drivers which are supporting virtual and physical NIC’s so environment can be used to build efficient data plane applications for packet networks. The results of test on Quality of Service Metering...
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Detection of the acoustic interferences during AFM operation
Open Research DataAtomic force microscopy is a particularly complicated surface imaging technique due to the large number of factors that affect the quality of the resulting images. They are obviously difficult and sometimes even impossible to control at the same time. One of such factors may even be the seismological location of the building or the influence of mechanical...
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Destruction of AFM probes during normal operation
Open Research DataThe quality of the images obtained with the use of an atomic force microscope is determined by the state of the blade interacting with the tested material. Image artifacts can be generated by various reasons, such as oxidation, contamination or an error in blade fabrication, but also appear as a result of the repeated scanning process and inevitable...
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Curing characteristics and Mooney viscosity of reclaimed rubbers
Open Research DataPresented data shows the difference in curing characteristics and Mooney’s viscosity between commercially available reclaimed rubbers and ground tire rubber (GTR) with specific particle size distribution cured with the same curing system and with the same manner. Samples were prepared using a two-roll mill. After 24 hours of aging at ambient conditions,...
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Multipath routing for quality of service differentiation and network capacity optimization in broadband low-earth orbit systems
PublicationThis paper shows the importance of employing multiple different paths for routing in Inter-Satellite Link (ISL) networks in broadband Low-Earth Orbit (LEO) satellite systems. A theoretical analysis is presented and a routing concept is proposed to demonstrate three facts that make multipath routing especially important in broadband LEO networks: (1) differences in the propagation delays have a much greater impact on end-to-end...
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Advanced fatigue and rutting characterisation of Polish asphalt mixtures based on the VECD model and viscoplastic shift model
PublicationThe advanced asphalt mixture performance-related specifications (AM-PRS) recently developed in USA can allow an optimisation of the design process of asphalt pavements thanks to the possibility to fully take into account the intrinsic material properties. In this study, four typical Polish mixtures, i.e. a Stone Mastic Asphalt (SMA) for wearing course, two mixtures for binder course with neat bitumen or Polymer modified Bitumen...
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Voltage and frequency regulation of a standalone induction generator by reduced-rating power electronic compensators - comparative evaluation
PublicationIn this paper are considered two fundamental topologies of power electronic compensators for voltage and frequency control of a standalone self-excited induction generator (IG) system. These are voltage and current source inverter based shunt compensators with energy storage. The aim of this study is to assess main features of both topologies in dynamic and steady-state IG operation. The whole system is modelled with the aid of...
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An Approach to Mean Path Loss Model Estimation for Off-Body Channels
PublicationThis paper presents an approach to estimation of the mean path loss model parameters in off-body Body Area Networks channels. In this approach, the path loss exponent is constrained to a value obtained for the line-of-sight (LoS) propagation in the co-polarised channel, considering a generalised static scenario. The comparison of the goodness of fit between the proposed approach and other approaches, for a set of measurements obtained...
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Magnetic hydrophobic deep eutectic solvents for orbital shaker-assisted dispersive liquid-liquid microextraction (MAGDES-OS-DLLME) - determination of nickel and copper in food and water samples by FAAS
PublicationIn this work, a cheap and widely applicable dispersive liquid-liquid microextraction (DLLME) method was developed for the extraction of Ni(II) and Cu(II) from water and food samples and analysis using flame atomic absorption spectrometry. DLLME was assisted by orbital shaker, while ferrofluid as an extractant was based on deep eutectic solvent (DES). This ferrofluid was made of hydrophobic DES (hDES), composed of lauric acid and...
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Technological capability dynamics through cluster organizations
PublicationPurpose – The purpose of the paper is to portrait how members of cluster organizations (COs) perceive the role of COs in enabling them to accumulate technological capability (TC) significant for their innovation. Design/methodology/approach – The authors report the findings from their qualitative study based on an analysis of four COs. The organizational inertia and absorptive capacity (AC) theories are the theoretical underpinning...
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A method of predicting the best conditions for large-size workpiece clamping to reduce vibration in the face milling process
PublicationThe paper presents an innovative method of solving the problem of vibration suppression during milling of large-size details. It consists in searching for the best conditions for clamping the workpiece based on a rapid modal identification of the dominant natural frequencies only and requires repetitive changes in the tightening torque of the clamping screws. Then, by estimating the minimum work of the cutting forces acting in...
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Wojciech Wyrzykowski dr hab.
PeopleWojciech Wyrzykowski is an employee of the Department of Finance at the Faculty of Management and Economics of the Gdańsk University of Technology. He is the author of 70 scientific publications, including 5 monographs, and co-author of 7 monographs. The most important of them reflecting the author's scientific interests include: Tax conditions for the development of entrepreneurship in Poland, Taxes in Poland - outline of the...
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Tecnología y Democracia ¿Un amor de pandemia o una relación estable?
PublicationPrologar una obra como esta es un privilegio y una responsabilidad. Es un privilegio en tanto que da paso a un seguido de contribuciones de gran calado y relevancia académica que contribuyen a la mejora del conocimiento existente acerca de la relación entre la tecnología y el funcionamiento de la democracia. Es una responsabilidad en el sentido que debe poner sobre la mesa algunas de las cuestiones abiertas de la disciplina y como...
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The original method of cutting power forecasting while wood sawing
PublicationEfekty energetyczne procesu przecinania drewna piłami (siły skrawania i moc skrawania) przy klasycznym podejściu do zagadnienia są określane na podstawie wartości właściwego powierzchniowego oporu skrawania. Z drugiej strony siły skrawania można rozważać z punktu widzenia współczesnej mechaniki pękania. Prognozowanie wartości kąta ścinania z zastosowaniem modeli uwzględniających wiązkość materiału obrabianego, ścinanie w płaszczyźnie...
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DISPLACEMENT MEASUREMENTS DURING LOAD TESTING OF THE RAILWAY ARCH BRIDGE
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A Method and Device for 3D Recognition of Cutting Edge Micro Geometry
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The Influence of Abrasive Machine on Temperature During One Side Lapping
PublicationPrzedstawiono wyniki badań temperatury układu wykonawczego docierarki jednotarczowej. Analizowano temperaturę trzech pierścieni prowadzących separatory przy wykorzystaniu kamery termograficznej V-20 II firmy VIGO System S.A.
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A Mechatronic Procedure of Vibration Surveillance During Milling of a Flexible Workpiece
PublicationArtykuł prezentuje mechatroniczne podejście do nadzorowania drgań podczas obróbki szybkościowej przedmiotów podatnych z wykorzystaniem aktywnego sterowania optymalnego. Układ sterowania składa się z aktywych wzbudników piezoelektrycznych przymocowanych do przedmiotu. Efektywnośc metody została potwierdzona symulacjami komputerowymi i badaniami eksperymentalnymi.
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Asymptotic properties of quadratic stochastic operators acting on the L1 space
PublicationQuadratic stochastic operators can exhibit a wide variety of asymptotic behaviours and these have been introduced and studied recently in the ℓ1 space. It turns out that in principle most of the results can be carried over to the L1 space. However, due to topological properties of this space one has to restrict in some situations to kernel quadratic stochastic operators. In this article we study the uniform and strong asymptotic...
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A Method and Device for 3D Recognition of Cutting Edge Micro Geometry
PublicationA very useful method was successfully applied in the investigation of tools for machining wood and wood based composites. It allows scanning of the cutting edge micro geometry in three dimensions and reproducing it in a virtual space as a 3D surface. The application of the method opens new possibilities of studying tool wear by scanning, including the calculation of volume loss and other analysis of tool wedge geometry along and...
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BADANIA MATERIAŁOWE USZKODZONEJ RURY COIL TUBING RISERA Z1
PublicationW ramach ekspertyzy wykonano analizę materiałową i określono przyczyny uszkodzenia rury risera wody zatłaczającej.
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THE DETERMINANTS OF ENTERPRISE PROFI TABILITY DURING REDUCED ECONOMIC ACTIVITY
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Vitreous humour – routine or alternative material for analysis in forensic medicine
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Agent-Based Population Learning Algorithm for RBF Network Tuning
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Electromagnetic properties of a dielectric slab with an embedded silver nanowire grating
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Electromagnetic characterization of a silver nanowire grating embedded into a dielectric slab
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Testing and tuning automated drives as a task for computer aided maintenance.
PublicationPublikacja dotyczy zagadnień wstępnego uruchamiania i utrzymania ruchu maszyn produkcyjnych wyposażonych w zautomatyzowane napędy. Zawarto krótki przegląd segmentów wspomagania komputerowego stosowanych w zakładowych systemach utrzymania ruchu oraz zwrócono uwagę na ich rozproszoną lokalizację w strukturach CIM. Opisano ogólną koncepcję układu nadzorującego właściwości napędu, zbudowanego jako system DAQ i mogącego znaleźć zastosowanie...
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Virtualization of Poles’ buying behavior duringthe COVID-19 pandemic
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Different Modes of Hydrogen Peroxide Action During Seed Germination
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Benign Acute Childhood Myositis During Influenza B Outbreak
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The effects of ischemia during rest intervals on strength endurance performance
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Tuning the sumanene receptor structure towards the development of potentiometric sensors
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Heat transfer during pool boiling on smooth tube bundle
PublicationPrzedstawiono wyniki pomiarów współczynnika przejmowania ciepła dla pęku 19 gładkich rurek ze stali nierdzewnej ogrzewanych elektrycznie podczas wrzenia wody destylowanej, metanolu i R141b. Zaproponowano równanie korelacyjne do obliczania średniego współczynnika przejmowania ciepła.
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Specific cutting resistance while sawing of wood - the size effect
PublicationW artykule przedstawiono wyniki analiz zmian właściwego oporu skrawania, przy zastosowaniu współczesnej mechaniki pękania z uwzględnieniem wiązkości. Analizy wykonano dla procesu przecinania drewna na pilarce ramowej PRW15M drewna jesionu i jesionu modyfikowanego termicznie. Zastosowane podejście pozwala na wyjaśnienie zjawiska wzrostu właściwego powierzchniowego oporu skrawania dla niewielkich grubości warstwy skrawanej jako efektu...
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Roofing Materials as Pollution Emiters - Concentration Changes During Runoff
PublicationThe influence of roofing material on concentration of pollutants in roof runoff waters and changes of pollution concentration in time were investigated. In field studies four roofing material types were taken into consideration - ceramic tile, bituminous membrane, asbestos tile and zinc sheeting. Samples were collected since November 2007 to March 2008, anions, cations, metals, PAHs, pesticides and PCB were determined. The existence...
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Formation of aqueous and alcoholic adducts of curcumin during its extraction
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Alignment of the CMS silicon tracker during commissioning with cosmic rays
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Resistance of Polypropylene Membrane to Oil Fouling during Membrane Distillation
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Studies of membrane scaling during water desalination by membrane distillation
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Wettability of polypropylene capillary membranes during the membrane distillation process
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The influence of polypropylene degradation on the membrane wettability during membrane distillation
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Actinidia (Mini Kiwi) Fruit Quality in Relation to Summer Cutting
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The usefulness of fluorescence in detecting ischemia during bariatric and metabolic surgery
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Micropropagation, rooting, and acclimatization of two cultivars of goji (Lycium chinense)
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