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Search results for: power of anova test

Search results for: power of anova test

  • Adhesive Monitoring with Instrumented Wedge Test

    Publication

    - Year 2010

    The wedge test (sometimes called the Boeing wedge test) is amongst the most readily exploitable techniques for assessment of the rate-dependent fracture energy of adhesive materials when used to bond relatively rigid substrates. With its siblings: the double cantilever beam (DCB), and the tapered double cantilever beam (TDCB), a force is applied, essentially in cleavage, to provoke substrate separation perpendicularly to the bondline...

  • The Influence of LED Lighting Sources on the Nature of Power Factor

    Publication

    - ENERGIES - Year 2018

    This article presents measurements of electric power absorbed by a newly built facility for office and scientific research activities. These measurements highlighted the need for compensation of capacitive reactive power—not predicted by the designer—due to the vast use of LED lighting in the facility. The article also describes a reactive power compensation system, designed on the basis of the above-mentioned measurements, and...

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  • Robert Bogdanowicz dr hab. inż.

    Robert Bogdanowicz received his Ph.D. degree with honours in Electronics from the Gdansk University of Technology. He worked as a post-doc researcher in Ernst-Moritz-Arndt-Universität Greifswald Institut für Physik. He has initiated optical emission imaging of muti-magnetron pulsed plasma and contributed to the development of antibacterial implant coatings deposited by high-power impulse magnetron sputtering. He moved back to...

  • Hydro Power Plant in the Process of Voltage Control in the Electric Power System and the System Restoration

    Publication

    - Acta Energetica - Year 2019

    The article covers selected issues related to the share of hydroelectric power in the process of rebuilding the power system after black-out and voltage control during that process. Selected results of measurements made during the creation of the transmission chain for the need to start a block of a thermal power plant from a hydroelectric power plant were presented.

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  • Arch bridges under test loadings

    This paper illustrates experience in arch bridges test loadings of the research team of Department of Structural Mechanics and Bridge Structures from the Gdansk University of Technology. The presented calculations results constist the analysis of spatial construction schemes made using the finite elements method (FEM) and its comparison to the field studies. Arch bridges with the longest spans, visualisation of the computational...

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  • Voltage and Reactive Power Load Flow Optimization in the Power System Using Fuzzy Logic

    The paper presents issues related to voltage control in the power system. An original method of reactive power flow optimization is considered, which leads to improved voltages in the power system and reduced active power losses. The optimization method is based on a procedure that employs fuzzy logic and is supported by a gradient search algorithm. The method has been implemented in PLANS software and verified.

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  • Modular power converter topologies for energy storage and electric power distribution systems

    Publication

    - Year 2017

    This paper describes selected issues concerning realization of energy storage system (ESS) designed to operate in power distribution system. In order to achieve scalability of the system a modular approach is proposed. In addition to this different configuration of the system are analyzed, where depending on requirements and application a scalability in power, in energy capacity of energy storage resource and both in power and...

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  • Test loading of the longest span arch bridge in Poland

    Bridge structures undergo thorough examination during test loading before they come into use. The aim of the examination is to check the correctness of the working structure and construction design assumptions. Test loading on the bridge is preceded by examination specification. This paper describes computational model and test loading results carried out during examibation of the bridge over the Vistula within the bypass of Puławy...

  • Multi-stage magnetic-fluid seals for operating in water - life test procedure, test stand and research results

    Publication

    The edge criteria for magnetic-fluid seals durability research are critical for the seal'stechnological usefulness. The magnetic fluid seal technology in water is much moredifficult technological problem in comparison to gas or vacuum environment. There isalways problem with immediate contact between magnetic fluid and the environmentaluninspected liquids. In the paper are presented ways of experiments definitions carried outwith...

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  • From Functional Requirements through Test Evaluation Design to Automatic Test Data Retrieval – a Concept for Testing of Software Dedicated for Hybrid Embedded Systems

    Publication

    - Year 2007

    From Functional Requirements through Test Evaluation Design to Automatic Test Data Retrieval – a Concept for Testing of Software Dedicated for Hybrid Embedded Systems

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  • Experimental test of nonclassicality with arbitrarily low detection efficiency

    Publication

    - PHYSICAL REVIEW A - Year 2020

    We theoretically introduce and experimentally demonstrate the realization of a nonclassicality test that allows for arbitrarily low detection efficiency without invoking an extra assumption of independence of the devices. Our test and its implementation is set in a prepare-and-measure scenario with an upper limit on the classical communication capacity of the channel through which the systems are communicated. The essence for our...

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  • Investigation method of large-volume tire with mobile test rig

    Publication

    - Year 2017

    The goal of this research is to develop the tire test method and mobile tire test rig. The test rig enables measurement of tire properties as stiffness and viscous damping in vertical direction, and tire–ground characteristics on the asphalt rigid surface. The tire-ground characteristics are measured by force and a torque measurement hub. The design, calibration and the algorithm for calculating the forces in the wheel center are...

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  • A novel approach to energy safety improvement in the marine power plants with active power surge compensator

    Publication

    - Year 2016

    Paper raises a point of power surges and theirs adverse effects in the marine power plants. The article explains a source of surges appearance, and presents measurements carried out on a modern ship. It discusses effects of dynamic power transients on the ship’s energy safety. Finally it proposes, a novel approach for power surge elimination, based on medium voltage active conditioner. As well as it propose the topology and control...

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  • A simple test for quantum channel capacity

    Publication

    Based on state and channel isomorphism we point out that semidefiniteprogramming can be used as a quick test for nonzero one-way quantum channelcapacity. This can be achieved by searching for symmetric extensions of statesisomorphic to a given quantum channel. With this method we provide examplesof quantum channels that can lead to high entanglement transmission but stillhave zero one-way capacity, in particular, regions of symmetric...

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  • IEEE TRANSACTIONS ON POWER ELECTRONICS

    Journals

    ISSN: 0885-8993 , eISSN: 1941-0107

  • Constructive entanglement test from triangle inequality

    Publication

    - Journal of Physics A-Mathematical and Theoretical - Year 2014

    We derive a simple lower bound on the geometric measure of entanglement for mixed quantum states in the case of a general multipartite system. The main ingredient of the presented derivation is the triangle inequality applied to the root infidelity distance in the space of density matrices. The obtained bound leads to entanglement criteria with a straightforward interpretation. The proposed criteria provide an experimentally accessible,...

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  • Measurements of active power coefficients in a ship power station with two generators working in parallel

    Open Research Data
    open access
    • R. Maśnicki
    • D. Hallmann
    • J. Mindykowski
    • T. Tarasiuk
    • M. Górniak
    • M. Szweda
    • B. Pałczyńska

    The presented dataset is part of research focusing on the assessment of metrological properties of the instrument,  Estimator/Analyzer (E/A v.2),  developed and made at the Faculty of Electrical Engineering, Department of Marine Electrical Power Engineering of Gdynia Maritime University. The attached dataset contains processed data, expressing active...

  • Measurements of active power distribution in a ship power station with two generators working in parallel

    Open Research Data
    open access
    • R. Maśnicki
    • D. Hallmann
    • J. Mindykowski
    • T. Tarasiuk
    • M. Górniak
    • M. Szweda
    • B. Pałczyńska

    The presented dataset is part of research focusing on the assessment of metrological properties of the instrument,  Estimator/Analyzer (E/A v.2),  developed and made at the Faculty of Electrical Engineering, Department of Marine Electrical Power Engineering of Gdynia Maritime University. The attached dataset contains processed data expressing an active...

  • Measurements of reactive power distribution in a ship power station with two generators working in parallel

    Open Research Data
    open access
    • R. Maśnicki
    • D. Hallmann
    • J. Mindykowski
    • T. Tarasiuk
    • M. Górniak
    • B. Pałczyńska
    • M. Szweda

    The presented dataset is part of research focusing on the assessment of metrological properties of the instrument, Estimator/Analyzer (E/A v.2),  developed and made at the Faculty of Electrical Engineering, Department of Marine Electrical Power Engineering of Gdynia Maritime University. The attached dataset contains processed data, expressing a reactive...

  • Start-up of a power unit of a thermal power plant auxiliary systems with supply from a hydropower plant

    This article discusses the issues related to a power unit of a thermal power plant start-up with the use of a hydropower plant. Hydropower plant can supply and will enable start-up of auxiliary equipment in a power unit of a thermal power plant. Due to high capacity of auxiliary drives, start-up of auxiliaries in a thermal power plant after blackout (and boiler shutdown) is not possible from emergency energy sources in the power...

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  • Fault detection in electronic circuits using test buses

    Publication

    - Year 2009

    A survey of test buses designed for diagnostics of digital and analog electronic circuits is presented: the IEEE 1149.1 bus for digital circuits, the IEEE 1149.4 bus for mixed-signal and the IEEE 1149.6 bus for AC coupled complex digital circuits. Each bus is presented with its structure, solution of key elements, particularly boundary registers and a set of test instructions. Diagnosis with the use of the described buses is...

  • Test Stand for Multi-option Stretching of Soft Tissues

    Publication

    - Year 2020

    The paper presents the genesis of the design and possibilities of the test stand for stretching soft tissues as well as examples of tests carried out on this device.

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  • Test Stand for Multi-option Stretching of Soft Tissues

    Publication

    - Year 2020

    The paper presents the genesis of the design and possibilities of the test stand for stretching soft tissues as well as examples of tests carried out on this device.

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  • On power stream in motor or drive system

    Publication

    In a motor or in a drive system the quantity of power increases in the direction opposite to the direction of power flow. Energy losses and energy efficiency of a motor or a drive system must be presented as functions of physical quantities independent of losses. Such quantities are speed and load. But the picture of power stream in a motor or in a drive system is presented in the literature in the form of traditional Sankey...

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  • Solutions of Power Electronics Converter for the Shore - to - Ship Power Systems

    W artykule poruszono tematykę zasilania statków zacumowanych w porcie z lądowej sieci elektroenergetycznej poprzez wykorzystanie nowoczesnych konstrukcji przekształtników energoelektronicznych. Zaproponowano budowę sieci dystrybucyjnej prądu stałego, przewoźnej platformy zasilającej oraz zastosowanie zasobników energii

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  • Active Power Quality Controllers

    Publication

    - Year 2008

    Dynamic Static Synchronous Compensator is the most important controller for distribution networks and probably in SEEN. It has been widely used since the 1990s to regulate system voltage precisely, improve voltage profile, reduce voltage harmonics, reduce transient voltage disturbances and load compensation. Rather than using conventional capacitors and inductors combined with fast switches, the D-STATCOM uses a power-electronics...

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  • The energy test ''100 fishing deys'' of a Baltic cutter

    Publication

    Referat prezentuje oryginalną koncepcję testu energetycznego podczas nieprzerwanej eksploatacji kutra bałtyckiego w przeciągu 100 dni "pracy na łowisku". Test zapewni wyznaczenie na drodze obliczeniowej ilości zużytego paliwa i sprawności eksploatacyjnej układu energetycznego. Podane modele obliczeniowe uwzględniają rzeczywiste rozwiązania układów energetycznych i układów połowowych oraz warunki pracy jednostek a także wartości...

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  • INCREASING POWER SUPPLY SAFETY IN THE ASPECT OF SUPPORTING THE RENEWABLE ENERGY SOURCES BY CONVENTIONAL AND VIRTUAL POWER STORES

    Publication

    This paper presents characteristics and purposefulness of supporting the renewable energy sources (OZE) by means of energy stores. The main emphasis was placed on analysis of virtual energy stores available for implementation in Polish economy conditions. A role which management of Demand Side Response (DSR) may play in balancing Polish electric power system, is discussed. Implementation of such solutions together with conventional...

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  • Numerical Test for Stability Evaluation of Discrete-Time Systems

    Publication

    - Year 2018

    In this paper, a new numerical test for stability evaluation of discrete-time systems is presented. It is based on modern root-finding techniques at the complex plane employing the Delaunay triangulation and Cauchy's Argument Principle. The method evaluates if a system is stable and returns possible values and multiplicities of unstable zeros of the characteristic equation. For state-space discrete-time models, the developed test...

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  • Modular power converter with superconducting magnetic energy storage for electric power distribution system — Analysis and simulation

    Publication

    - Year 2017

    This paper describes selected issues concerning realization of energy storage system (ESS) designed to operate in power distribution system. This paper presents a modular approach of 300 kVA power converter operating with superconducting magnetic energy storage (SMES), which gives high dynamics together with high power and suitable capability for instantaneous energy storage. Analysis and simulation studies of selected power converter...

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  • Power equalization of AES FPGA implementation

    This paper briefly introduces side channel attacks on cryptographic hardware with special emphasis on differential power analysis(DPA). Based on existing countermeasures against DPA, design method combining power equalization for synchronous and combinatorialcircuits has been proposed. AES algorithm has been implemented in Xilinx Spartan II-E field programmable gate array (FPGA) deviceusing the standard and power-equalized methods....

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  • Reexamination of determinant-based separability test for two qubits

    Publication

    Przeanalizowano wyznacznikowy test splątania dwukubitowego pod kątem związku z inną miarą splątania- zgodnością. Udowodniono prawo faktoryzacji i przeformułowano relację monogamii splątania przy użyciu wyznacznikowego parametru splątania.

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  • EMI mitigation of GaN power inverter leg by local shielding techniques

    Publication

    - IEEE TRANSACTIONS ON POWER ELECTRONICS - Year 2022

    This paper presents local shielding techniques applied to a half-bridge inverter leg with the aim to reduce the common mode (CM) current noise at converter’s DC input. The research study is conducted for 650V Enhancement mode Gallium Nitride (GaN) power transistor switches. Main contributors of parasitic capacitances referred to the inverter-leg middle point node are identified. Then, shielding solutions are proposed to reduce...

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  • Activity coordination of capacitor banks and power transformer controllers in order to reduce power losses in the MV grid

    Publication

    One of the main issues related to the optimization of the MV (middle voltage) network is to reduce losses of active and reactive power. Lower losses of active and reactive power give not only economic advantage, but also improvement of energy quality. The object of regulation that can be used for these purposes are transformer with On-Load Tap Changer and capacitor's banks. This paper presents results of analysis of the possibility...

  • Measurements of apparent power distribution in a ship power station with two generators working in parallel

    Open Research Data
    open access
    • R. Maśnicki
    • D. Hallmann
    • J. Mindykowski
    • T. Tarasiuk
    • M. Górniak
    • M. Szweda
    • B. Pałczyńska

    The presented dataset is part of research focusing on the assessment of metrological properties of the instrument, Estimator/Analyzer (E/A v.2), developed and made at the Faculty of Electrical Engineering, Department of Marine Electrical Power Engineering of Gdynia Maritime University. The attached dataset contains processed data, expressing an apparent...

  • TB11 test for short w-beam road barrier

    FEM (Finite Element Method) is well-suited and widely used tool for simulating a range of phenomena: from these with simple and static behaviour, up to those complicated, highly nonlinear and involving many contacts. In present paper we use one of the advantages of FEM: parametric study could be easily performed and is more economical than series of in-situ tests. If recommended practices is carefully followed, results obtained...

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  • Representativity of ISO test track surface based on controlled pass-by measurements

    Publication

    - Year 2023

    Within the Polish-Norwegian research project ELANORE, a limited Round Robin Test has been performed on four ISO tracks in Northern Europe. The basic objective of the project is to improve the EU directive on labelling of tyres for noise and rolling resistance. This directive is based on the measurement procedures proscribed in the UNECE Reg.117. Measurements on 3 ISO tracks were performed in 2021 and presented at InterNoise 2022....

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  • Wpływ sposobu suszenia na wiązkość i naprężenia tnące przy przecinaniu wybranych gatunków drewna

    Publication

    - Year 2021

    W rozprawie doktorskiej przedstawiono wpływ sposobów suszenia na wiązkość i naprężenia tnące w strefie skrawania, które zgodnie ze współczesną mechaniką pękania można uznać za energetyczne wskaźniki skrawalności. Badania zostały przeprowadzone dla próbek z drewna sosnowego (Pinus sylvestris L.) i bukowego (Fagus silvatica L.) suszonego czterema sposobami. Trzy z nich, to najczęściej wykorzystywane w przemyśle, suszenie w sposób...

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  • Unlocking the Secrets of River Pollution: Analyzing Organic Pollutants in Sediments—Experimental Study

    Publication

    - Water - Year 2023

    Untreated wastewater released into rivers can result in water pollution, the spread of waterborne diseases, harm to ecosystems, contamination of soil and groundwater, as well as air pollution and respiratory problems for nearby humans and animals due to the release of greenhouse gases. The current study aims to investigate the recent input of anthropogenic loads into the rivers using linear alkylbenzene (LAB), which is one of the...

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  • Combined Heat & Power Generating Systems

    Publication

    - Year 1988

    Steam cycles in combined heat and power plants. Efficiency of combined heat and power systems. Characteristics of steam-turbine CHP plants. Choice of equipment in CHP generating systems. Economic effects of combined heat and power production. Costs and energy produced CHP generating systems. Future development trends in CHP generating systems.

  • Energy losses in hydrostatic drive:Drive investigation method compatible with diagram of power increase opposite to the direction of power flow

    Publication

    - Year 2016

    Energy losses and efficiency of drive motor must be presented as functions of physical quantities independent of losses in the motor. Such quantities are speed and load required by the driven device, changing in the drive operating field. Speed and load decide of the useful power and, in differentiated way, of kinds and values of losses in the motor. But energy losses and efficiency of drive motors are evaluated as functions of...

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  • Shear band evolution phenomena in direct shear test modelled with DEM.

    Publication

    A direct shear test is widely used in the geotechnical engineering field. It is an easy and quick test to measure the shear properties of soil. This test often replaces more expensive and difficult tri-axial shear test. Despite that the direct shear test is known and used for a long time, it is still not well investigated at the grain scale. This paper deals with the micro behaviour of the cohesionless sand inside the direct shear...

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  • Increase of power and efficiency of the 900 MW supercritical power plant through incorporation of the ORC

    Publication

    - Archives of Thermodynamics - Year 2013

    The objective of the paper is to analyse thermodynamical and operational parameters of the supercritical power plant with reference conditions as well as following the introduction of the hybrid system incorporating ORC. In ORC the upper heat source is a stream of hot water from the system of heat recovery having temperature of 90 °C, which is additionally aided by heat from the bleeds of the steam turbine. Thermodynamical analysis...

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  • The use of can in automation test bench to test the engine cooling system

    Publication

    - Journal of KONES - Year 2010

    W publikacji opisano zasady rejestracji danych pomiarowych w hamowni silnikowej do badań układów chłodzenia silników samochodowych. Założeniami projektu stanowiska było użycie standardu przesyłu danych typu CAN. Opracowano metodę dużej gęstości zapisu przesyłanych danych.

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  • Performance analysis of power swing blocking feature in ABB 670 series impedance relays

    Publication

    - Acta Energetica - Year 2012

    This paper presents test results of a distance protection’s PSD power swing detection feature in ABB 670 series relays. A RED670 relay was tested, which is part of the hydroelectric set protection in Żarnowiec Pumped Storage Plant. The power swing blocking feature’s performance was analysed on the basis of the results of object tests made with an Omicron digital tester. Also presented are simulation results that illustrate the...

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  • Measurements of the coefficients of active power distribution between two generators operating in parallel in a ship power station

    Open Research Data
    open access
    • R. Maśnicki
    • D. Hallmann
    • J. Mindykowski
    • T. Tarasiuk
    • M. Górniak
    • M. Szweda
    • B. Pałczyńska

    The presented dataset is part of research focusing on the assessment of metrological properties of the instrument,  Estimator/Analyzer (E/A v.2),  developed and made at the Faculty of Electrical Engineering, Department of Marine Electrical Power Engineering of Gdynia Maritime University. The attached dataset contains processed data, expressing coefficients...

  • ASSESSMENT OF ENGINE OPERATION WITH THE USE OF AN OPERATION INDICATOR BASED ON TEST BENCH RESULTS OF A ROBINSUBARU EX17 ENGINE

    Paper presents results of an experimental verification of the method of quantitative evaluation of engine operation, presented in the literature, exemplified by a low-power internal combustion piston engine. In accordance with such interpretation, engine operation may be presented as a physical quantity defined as operation indicator. The paper presents results of preliminary tests, processed in that aspect, carried out on an engine...

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  • The paradigms of power in the Russian Federation

    Publication

    - Year 2011

    This article outlines the position of the Russian Federation in the first decade of the 21th century, seen in its political, economic and military aspects. It attempts to document the fact that Russia, the former world superpower, has turned into a regional power.

  • The investment process in the power supply industry

    Publication

    - Rynek Energii - Year 2012

    The basis for power supply industry programming in a market economy should be the principle of sustainable development, which must take into account maintaining an adequate level of energy security on the one hand, and the aim to preserve the maximum degree of non-renewable resources on the other hand. Therefore, the overriding aim should be a strive to meet the current and prospective demand for energy and fuel, in conjugation...

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  • Virtual inertia in Electric Power System

    The article presents the idea of introducing virtual inertia system to the electric power systems. The virtual inertia aim is to reduce or eliminate the effect of reducing the inertia of the power system as a result of replacing classic electricity generating units with renewable renergy sources (RES). The considerations are ilustrated by a computational example.

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