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Tytuł:
The Use of PMU Data for Detecting and Monitoring Selected Electromagnetic Disturbances
Autorzy:
Barczentewicz, Szymon H.
Bień, Andrzej
Duda, Krzysztof
Powiązania:
https://bibliotekanauki.pl/articles/1844459.pdf
Data publikacji:
2020
Wydawca:
Polska Akademia Nauk. Czytelnia Czasopism PAN
Tematy:
electrical disturbances
phasor measurement unit
power quality
distribution system
Opis:
Power quality (PQ) monitoring is important for both the utilities and also the users of electric power. The most widespread measurement instrument used for PQ monitoring is the PQM (Power Quality Monitor) or PQA (Power Quality Analyzer). In this paper we propose the usage of PMU data for PQ parameters monitoring. We present a new methodology of PQ parameters monitoring and classification based on PMU data. The proposed methodology is tested with real measurements performed in distribution system using dedicated PMU system.
Źródło:
International Journal of Electronics and Telecommunications; 2020, 66, 4; 775-780
2300-1933
Pojawia się w:
International Journal of Electronics and Telecommunications
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
Karty kontrolne narzędziem oceny zmienności procesu wytwarzania odlewów
Control Charts as the Tool for Assessment of the Variability of the Castings Manufacturing Process
Autorzy:
Brzeziński, M.
Smyksy, K.
Powiązania:
https://bibliotekanauki.pl/articles/381184.pdf
Data publikacji:
2014
Wydawca:
Polska Akademia Nauk. Czytelnia Czasopism PAN
Tematy:
odlewy
zarządzanie jakością
system MSA
karty kontrolne
castings
quality management
MSA system
checklists
Opis:
Szybko rozwijająca się gospodarka oraz ciągłe wzrastające wymagania klientów wymuszają na odlewniach nieustanną rywalizację o egzystencję i dalszy rozwój. Osiągnięcie tych dwóch podstawowych rzeczy, jest sprawą niezmiernie trudną. Zarząd odlewni staje przed skomplikowanymi decyzjami związanymi z maksymalizacją efektywności produkcji. Do takich decyzji należy m.in. wdrażanie nowych systemów czy też instrumentów zarządzania jakością. W artykule poddano analizie i ocenie system kontroli jakości odlewów oparty na kartach kontrolnych do pomiarów liczbowych [...].
Rapidly growing economy and the continuous increasing demands of customers force on foundry companies the ceaseless rivalry for existence and further development. Achieving these two basic aims is extremely difficult matter. Management of foundry is faced with complicated decisions connected with maximization of the production effectiveness. Such decisions include, among others, implementation of new systems or instruments of the quality management. The article analyzes and evaluates the quality control system of casting based on control charts of measurements [...]
Źródło:
Archives of Foundry Engineering; 2014, 14, 2 spec.; 7-10
1897-3310
2299-2944
Pojawia się w:
Archives of Foundry Engineering
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
A tool to measure maturity of an employee suggestion scheme
Autorzy:
Lasrado, F.
Gomišček, B.
Powiązania:
https://bibliotekanauki.pl/articles/407046.pdf
Data publikacji:
2015
Wydawca:
Polska Akademia Nauk. Czytelnia Czasopism PAN
Tematy:
quality management
measurement
model
system
Employee Suggestion Scheme
innovation
Opis:
Employee Suggestion Schemes have been used in organizations for a long time due to the fact that they enable fostering of creative ability of employees. However, they must be used effectively and in a sustainable manner to better the creativity and innovation capacity of organizations in order to improve competitive advantage. Therefore there is a need to understand the maturity of Employee Suggestion Schemes. This paper proposes a new, structured evaluation tool for assessing an organizational Employee Suggestion Scheme maturity. It suggests five building blocks: Leadership and Work Environment, System Capability, System Effectiveness, Organizational Encouragement and System Barriers, each of them characterized by several relevant indicators and an assessment/grading scale in order for an organization to be able to determine the maturity level of their Employee Suggestion Scheme as: Initial stage, Development stage or Advanced stage. Organizations should apply this tool to assess the maturity level of their Employee Suggestion Scheme and draw a roadmap for its improvements.
Źródło:
Management and Production Engineering Review; 2015, 6, 2; 4-13
2080-8208
2082-1344
Pojawia się w:
Management and Production Engineering Review
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
Identification and assessment of transport identification and assessment of transport systems operation quality
Identyfikacja i ocena kryteriów jakości działania systemów transportowych
Autorzy:
Muślewski, Ł.
Bojar, P.
Woropay, M.
Powiązania:
https://bibliotekanauki.pl/articles/223526.pdf
Data publikacji:
2011
Wydawca:
Polska Akademia Nauk. Czytelnia Czasopism PAN
Tematy:
systemy transportowe
system socjotechniczny (C-M-O)
jakość
transport system
system socio-technical (H-M-E)
quality
Opis:
The basis of a transport system operation is accomplishment of set goals in specified conditions, place quantity and time. From an analysis of the literature it results that the reasearch on these systems operation quality is crucial for the processes of service - repair, control, fuel supply and diagnosis, especially for machines and dvices used in them. The discussed systems are classified as socio-technical ones of the type (human-machine-environment), including the transport system which is the research object of this paper. On the basis of the authors' own experimental tests results and identification of processes which take palce in the research object, a method for assessment of such transport systems operation quality has been presented in the article. The authors of the paper have made an attempt to develop a model for assessment of undesirable impact of actions of people present in the system and its environment.
Podstawą działania systemów transportowych jest realizacja postawionych im celów w określonych warunkach, miejscu, ilości i czasie. Z analizy literatury przedmiotowej wynika, że badanie jakości funkcjonowania tych systemów, stanowi jeden z podstawowych czynników w procesach obsługowo - naprawczych, sterowania, zasilania, diagnozowania a w szczególności użytkowania eksploatowanych w nich maszyn i urządzeń. Omawiane systemy, zalicza się do systemów socjotechnicznych typu (człowiek - maszyna - otoczenie), wśród których wyróżnić można system transportowy, stanowiący w niniejszym opracowaniu obiekt badań. Na podstawie wyników własnych badań eksploatacyjnych oraz identyfikacji procesów realizowanych w obiekcie badań, w opracowaniu przedstawiono metodę oceny jakości działania takich systemów. Jako przykład zastosowania opracowanej metody ocenowej, w pracy podjęto próbę budowy modelu oceny niepożądanych oddziaływań ludzi, usytuowanych w systemie i jego otoczeniu.
Źródło:
Archives of Transport; 2011, 23, 3; 321-334
0866-9546
2300-8830
Pojawia się w:
Archives of Transport
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
Development of quality management system under ISO 9001:2015 and Joint Inspection Group (JIG) for aviation fuelling service
Autorzy:
Ruamchat, K.
Thawesaengskulthai, N.
Pongpanich, C.
Powiązania:
https://bibliotekanauki.pl/articles/406960.pdf
Data publikacji:
2017
Wydawca:
Polska Akademia Nauk. Czytelnia Czasopism PAN
Tematy:
ISO 9001
QMS
integration system
quality assurance
aviation fuelling service
Opis:
The Joint Inspection Group (JIG) standard for aviation fuel quality management assists in the operational process and maintenance of aviation fuel from its point of origin and through distribution systems to airports. Currently, problems arise as the JIG standard and quality management in aviation fuel are isolated and have independent procedures. Merging the JIG standards with ISO 9001:2015 can override original JIG’s philosophy by connecting all quality assessment, and management parties involved, throughout the supply chain. This integration can harmonize auditing tasks, focusing on risk/opportunity, and continue quality improvement focus. This paper proposes a development of quality management system (QMS) under ISO 9001:2015 for aviation fuelling service in a systematic way. The content and critical success factors of ISO 9001:2015 and JIG standards were studied. The beneficial synergies, similarities, and logical linkages between both standards are identified. This QMS was developed in the largest petroleum company in Thailand and 60 selected experts were surveyed, with a response rate of 88.3%, for their agreement on integrated criteria. Two external quality auditors, who have ISO 9001 and JIG expertise, were interviewed to modify our initial proposed QMS. The final QMS was implemented in the into-plane fuelling services as the first phase of this implementation. Results of framework implementation are discussed in a case study. There are mutual benefits resulting from the integration of JIG and ISO 9001:2015 standards. This QMS provides a unified process for quality management practices, and enhances the effectiveness of risk evaluation as well as the opportunity for continued quality improvement. It facilitates the identifi- cation of ISO 9001:2015 requirements and establishes relationships between the roles of JIG standard and the clauses of ISO 9001:2015. The first experience from five airports as the pilot study of proposed QMS implementation minimized conflicts and duplications between JIG and ISO 9001:2015 standards, reduced the number of into-plane fuelling service incidents reported, such as oil spill, machine stoppage, re-inspections, and recall costs.
Źródło:
Management and Production Engineering Review; 2017, 8, 3; 50-59
2080-8208
2082-1344
Pojawia się w:
Management and Production Engineering Review
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
Development of QoS Methods in the Information Networks with Fractal Traffic
Autorzy:
Daradkeh, Y. I.
Kirichenko, L.
Radivilova, T.
Powiązania:
https://bibliotekanauki.pl/articles/227166.pdf
Data publikacji:
2018
Wydawca:
Polska Akademia Nauk. Czytelnia Czasopism PAN
Tematy:
communication system traffic
fractals
quality of service
queueing analysis
routing
Opis:
The paper discusses actual task of ensuring the quality of services in information networks with fractal traffic. The generalized approach to traffic management and quality of service based on the account of multifractal properties of the network traffic is proposed. To describe the multifractal traffic properties, it is proposed to use the Hurst exponent, the range of generalized Hurst exponent and coefficient of variation. Methods of preventing of network overload in communication node, routing cost calculation and load balancing, which based on fractal properties of traffic are presented. The results of simulation have shown that the joint use of the proposed methods can significantly improve the quality of service network.
Źródło:
International Journal of Electronics and Telecommunications; 2018, 64, 1; 27-32
2300-1933
Pojawia się w:
International Journal of Electronics and Telecommunications
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
Properties of the power conditioning system with a five-level cascaded converter and supercapacitor energy storage
Autorzy:
Zygmanowski, M.
Grzesik, B.
Michalak, J.
Powiązania:
https://bibliotekanauki.pl/articles/200041.pdf
Data publikacji:
2011
Wydawca:
Polska Akademia Nauk. Czytelnia Czasopism PAN
Tematy:
cascaded H-bridge multilevel converters
power conditioning system
power quality
Opis:
The paper presents the power conditioning system (PCS) with a five-level cascaded H-bridge converter and supercapacitor energy storage. The paper focuses on such properties of a power electronic converter as its operation, power losses, start-up as well as the DC-link voltage balancing method and controller. A laboratory model of the PCS and its test results have been presented.
Źródło:
Bulletin of the Polish Academy of Sciences. Technical Sciences; 2011, 59, 4; 525-540
0239-7528
Pojawia się w:
Bulletin of the Polish Academy of Sciences. Technical Sciences
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
Measurement-based harmonic current modeling of mobile storage for power quality study in the distribution system
Autorzy:
Wenge, C.
Guo, H.
Roehrig, C.
Powiązania:
https://bibliotekanauki.pl/articles/140847.pdf
Data publikacji:
2017
Wydawca:
Polska Akademia Nauk. Czytelnia Czasopism PAN
Tematy:
electrical vehicle
harmonic load modeling
harmonic measurement in power system
power quality
power system harmonics
Opis:
Electric vehicles (EVs) can be utilized as mobile storages in a power system. The use of battery chargers can cause current harmonics in the supplied AC system. In order to analyze the impact of different EVs with regardto their number and their emission of current harmonics, a generic harmonic current model of EV types was built and implemented in the power system simulation tool PSS®NETOMAC. Based on the measurement data for different types of EVs three standardized harmonic EV models were developed and parametrized. Further, the identified harmonic models are used by the computation of load flow in a modeled, German power distribution system. As a benchmark, a case scenario was studied regarding a high market penetration of EVs in the year 2030 for Germany. The impact of the EV charging on the power distribution system was analyzed and evaluated with valid power quality standards.
Źródło:
Archives of Electrical Engineering; 2017, 66, 4; 801-814
1427-4221
2300-2506
Pojawia się w:
Archives of Electrical Engineering
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
The relationship between EFQM recognition System and management maturity
Autorzy:
Pimentel, Luis
Rogala, Piotr
Powiązania:
https://bibliotekanauki.pl/articles/2127525.pdf
Data publikacji:
2022
Wydawca:
Polska Akademia Nauk. Czytelnia Czasopism PAN
Tematy:
quality management
EFQM awards
EFQM recognition system
business excellence
management maturity
Opis:
The EFQM recognition system is an acknowledged method of assessing business excellence understood as the degree of implementation of quality management in an organization. The paper aims to examine whether a high rating under the EFQM recognition system simultaneously means a high general management maturity level. The investigation covers the 35 organizations that won EFQM awards in Portugal. The study is based on points awarded to organizations under the EFQM recognition system and on questionnaires/interviews with managers responsible for quality management in the studied organizations. The results indicate a positive and robust correlation between the quality management implementation (rating under the EFQM recognition system) and general management maturity. The study helps to close the gap in the literature regarding the relationship between quality management and management maturity in an organization.
Źródło:
Management and Production Engineering Review; 2022, 13, 2; 81--91
2080-8208
2082-1344
Pojawia się w:
Management and Production Engineering Review
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
Behavior of single-point harmonic producer indicators in electrified AC railways
Autorzy:
Mariscotti, Andrea
Powiązania:
https://bibliotekanauki.pl/articles/1849160.pdf
Data publikacji:
2020
Wydawca:
Polska Akademia Nauk. Czytelnia Czasopism PAN
Tematy:
distortion power
electric transportation systems
harmonic source
Power Quality
power system harmonics
railways
Opis:
Electrified railways are an example of AC single phase distribution networks. A non-negligible amount of active and nonactive power may be related to harmonics, especially for distorted highly-loaded systems. The paper considers the relevance of the harmonic power terms in order to identify distortion sources in a single-point perspective, in line with the approach of EN 50463 for the quantification of the power and energy consumption. Some single-point Harmonic Producer Indicators (HPI) based on harmonic active power direction and nonactive distortion power terms are reviewed and evaluated using pantograph voltage and current measured during several hours of runs in two European AC railways (operated at 16.7 and 50 Hz). The HPI based on active power shows to be consistent and provides detailed information of rolling stock characteristic components under variable operating conditions; those based on nonactive distortion power are global indexes and hardly can operate with complex harmonic patterns in variable operating conditions.
Źródło:
Metrology and Measurement Systems; 2020, 27, 4; 641-657
0860-8229
Pojawia się w:
Metrology and Measurement Systems
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
Advanced Real-time Evaluation and Data Quality Monitoring Model Integration with FPGAs for Tokamak High-performance Soft X-ray Diagnostic System
Autorzy:
Wojenski, A.
Poźniak, K.
Mazon, D.
Chernyshova, M.
Powiązania:
https://bibliotekanauki.pl/articles/227260.pdf
Data publikacji:
2018
Wydawca:
Polska Akademia Nauk. Czytelnia Czasopism PAN
Tematy:
data quality monitoring
system modeling
FPGA
Verilog/VHDL
HDL
GEM detector
SXR plasma diagnostics
modular measurement system
data evaluation
Opis:
Based on the publications regarding new or recent measurement systems for the tokamak plasma experiments, it can be found that the monitoring and quality validation of input signals for the computation stage is done in different, often simple, ways. In the paper is described the unique approach to implement the novel evaluation and data quality monitoring (EDQM) model for use in various measurement systems. The adaptation of the model is made for the GEM-based soft X-ray measurement system FPGA-based. The EDQM elements has been connected to the base firmware using PCI-E DMA real-time data streaming with minimal modification. As additional storage, on-board DDR3 memory has been used. Description of implemented elements is provided, along with designed data processing tools and advanced simulation environment based on Questa software.
Źródło:
International Journal of Electronics and Telecommunications; 2018, 64, 4; 473-479
2300-1933
Pojawia się w:
International Journal of Electronics and Telecommunications
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
Assessment of Reliability of Measurement Data and Adequacy of the Measurement Systems in Improving Quality of Casting Products
Autorzy:
Fedoryszyn, A.
Brzeziński, M.
Powiązania:
https://bibliotekanauki.pl/articles/380770.pdf
Data publikacji:
2015
Wydawca:
Polska Akademia Nauk. Czytelnia Czasopism PAN
Tematy:
quality control
cast quality
measurement system analysis
repeatability analysis
reproducibility analysis
kontrola jakości
jakość odlewu
analiza systemu pomiarowego
analiza powtarzalności
analiza odtwarzalności
Opis:
The study summarises the analysis of reliability assessment of measurements of a selected critical property of a high-precision casting product. Measurement data must be sufficiently reliable to be used in decision-making relating to quality control and the selection of the casting manufacturing technology. The applied procedure is illustrated by study of the variability range of readouts depending on the measurement conditions, obtained by the computer methods. The applied R&R (Repeatability and Reproducibility) procedure is major component of the widely employed Measurement System Analysis (MSA).
Źródło:
Archives of Foundry Engineering; 2015, 15, 3 spec.; 124-126
1897-3310
2299-2944
Pojawia się w:
Archives of Foundry Engineering
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
Visual methods of processing survey data in social disciplines based on fuzzy logic
Autorzy:
Śmigielski, Grzegorz
Mreła, Aleksandra
Sokolov, Oleksandr
Nedashkovskyy, Mykoła
Powiązania:
https://bibliotekanauki.pl/articles/2086872.pdf
Data publikacji:
2021
Wydawca:
Polska Akademia Nauk. Czytelnia Czasopism PAN
Tematy:
information system
quality of education
fuzzy relations
optimistic fuzzy aggregation norm
system informacyjny
jakość edukacji
relacje rozmyte
optymistyczna rozmyta norma agregacji
Opis:
All universities are responsible for assessing the quality of education. One of the required factors is the results of the students’ research. The procedure involves, most often, the preparation of the questionnaire by the staff, which is voluntarily answered by students; then, the university staff uses the statistical methods to analyze data and prepare reports. The proposed EQE method by the application of the fuzzy relations and the optimistic fuzzy aggregation norm may show a closer connection between the students’ answers and the achieved results. Moreover, the objects obtained by the application of the EQE method can be visualized by using the t-SNE technique, cosine between vectors and distances of points in five-dimensional space.
Źródło:
Bulletin of the Polish Academy of Sciences. Technical Sciences; 2021, 69, 5; e138812, 1--8
0239-7528
Pojawia się w:
Bulletin of the Polish Academy of Sciences. Technical Sciences
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
Modeling of the Decision-making Procedure for Financing of Cyber Security Means of Cloud Services by the Medium of a Bilinear Multistep Quality Game with Several Terminal Surfaces
Autorzy:
Lakhno, V.
Akhmetov, B.
Malyukov, V.
Kartbaev, T.
Powiązania:
https://bibliotekanauki.pl/articles/226592.pdf
Data publikacji:
2018
Wydawca:
Polska Akademia Nauk. Czytelnia Czasopism PAN
Tematy:
cloud infrastructures
cyber security
multistep quality game
optimum financing strategy
risks
decision-making support system
Opis:
The model is developed for the intellectualized decision-making support system on financing of cyber security means of transport cloud-based computing infrastructures, given the limited financial resources. The model is based on the use of the theory of multistep games tools. The decision, which gives specialists a chance to effectively assess risks in the financing processes of cyber security means, is found. The model differs from the existing approaches in the decision of bilinear multistep quality games with several terminal surfaces. The decision of bilinear multistep quality games with dependent movements is found. On the basis of the decision for a one-step game, founded by application of the domination method and developed for infinite antagonistic games, the conclusion about risks for players is drawn. The results of a simulation experiment within program implementation of the intellectualized decision-making support system in the field of financing of cyber security means of cloudbased computing infrastructures on transport are described. Confirmed during the simulation experiment, the decision assumes accounting a financial component of cyber defense strategy at any ratios of the parameters, describing financing process.
Źródło:
International Journal of Electronics and Telecommunications; 2018, 64, 4; 467-472
2300-1933
Pojawia się w:
International Journal of Electronics and Telecommunications
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
Soft X-ray Diagnostic System Upgrades and Data Quality Monitoring Features for Tokamak Usage
Autorzy:
Wojenski, Andrzej
Linczuk, Paweł
Piotr, Kolasinski
Chernyshova, Maryna
Mazon, Didier
Kasprowicz, Grzegorz
Pozniak, Krzysztof T.
Gaska, Michał
Czarski, Tomasz
Krawczyk, Rafał
Powiązania:
https://bibliotekanauki.pl/articles/1844595.pdf
Data publikacji:
2021
Wydawca:
Polska Akademia Nauk. Czytelnia Czasopism PAN
Tematy:
data quality monitoring
FPGA
Verilog/VHDL
HDL
GEM detector
SXR plasma diagnostics
modular measurement system
data evaluation
tokamak
Opis:
The validation of the measurements quality after on-site diagnostic system installation is necessary in order to provide reliable data and output results. This topic is often neglected or not discussed in detail regarding measurement systems. In the paper recently installed system for soft X-ray measurements is described in introduction. The system is based on multichannel GEM detector and the data is collected and sent in special format to PC unit for further postprocessing. The unique feature of the system is the ability to compute final data based on raw data only. The raw data is selected upon algorithms by FPGA units. The FPGAs are connected to the analog frontend of the system and able to register all of the signals and collect the useful data. The interface used for data streaming is PCIe Gen2 x4 for each FPGA, therefore high throughput of the system is ensured. The paper then discusses the properties of the installation environment of the system and basic functionality mode. New features are described, both in theoretical and practical approach. New modes correspond to the data quality monitoring features implemented for the system, that provide extra information to the postprocessing stage and final algorithms. In the article is described also additional mode to perform hardware simulation of signals in a tokamak-like environment using FPGAs. The summary describes the implemented features of the data quality monitoring features and additional modes of the system.
Źródło:
International Journal of Electronics and Telecommunications; 2021, 67, 1; 109-114
2300-1933
Pojawia się w:
International Journal of Electronics and Telecommunications
Dostawca treści:
Biblioteka Nauki
Artykuł
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