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Wyszukujesz frazę "quality of information" wg kryterium: Temat


Wyświetlanie 1-5 z 5
Tytuł:
Small area statistics and quality management – the Polish perspective
Autorzy:
Kordos, Jan
Powiązania:
https://bibliotekanauki.pl/articles/434096.pdf
Data publikacji:
2018
Wydawca:
Wydawnictwo Uniwersytetu Ekonomicznego we Wrocławiu
Tematy:
efficiency of decision-making
the quality of the information
model
the acronym GIGO
statistics of small areas
quality management
sources of statistical data
Opis:
The author begins with a discussion of the main factors affecting the efficiency of decision-making, and in particular the quality of the information used, the models applied and the knowledge of decision-makers in the field of the implementation. First, we considered the acronym GIGO (“garbage in garbage out”) used in computer science, expressing the impact of the relationship between the quality of the information used in the model, and their outcome, and then the Box aphorism about the usefulness of models (“All models are wrong but some are useful”). Particular attention is paid to the statistics of small areas, discussing their source, size, and mainly their quality, giving the current definition of data quality. Next the author provided the development of estimation methods for small areas, apart from mathematical formulas and limited to the presentation of some flowcharts. The author then discusses the role of small area statistics in quality management, focusing on the evaluation of their quality, which is of particular importance when making decisions. The paper is prepared from the Polish perspective, referring mainly to Polish statisticians and some relevant publications in English.
Źródło:
Śląski Przegląd Statystyczny; 2018, 16 (22); 37-54
1644-6739
Pojawia się w:
Śląski Przegląd Statystyczny
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
A spreadsheet to support the Suzuki ABCD method
Autorzy:
Szczęśniak, Bartosz
Powiązania:
https://bibliotekanauki.pl/articles/1931567.pdf
Data publikacji:
2020
Wydawca:
Politechnika Śląska. Wydawnictwo Politechniki Śląskiej
Tematy:
assessment of significance of causes
improvement of information processes
quality management
spreadsheet
ocena istotności przyczyn
usprawnienie procesów informacyjnych
zarządzanie jakością
arkusz kalkulacyjny
Opis:
Purpose: Main aims of research is to create and present the concept of using a spreadsheet to create a tool supporting the assessment of significance of causes in accordance with the principles of the Suzuki ABCD method. Design/methodology/approach: The ABCD method itself was discussed first. Based on the literature research, several different variants have been identified. One chosen option has been described in more detail. A support tool has been proposed for this option. Its structure was discussed. The two main elements of the tool are presented in detail, including the workbook, in which the assessment is performed, and the aggregate workbook. Solutions used to support individual significance assessments and solutions for the automatic generation of required summaries were presented and discussed. Findings: The presented solution shows that the spreadsheet can be treated as a sufficient environment to create a tool supporting the Suzuki ABCD analysis. The assumed functionality of the tool can be obtained without the need to register macros or create code in any programming language. Practical implications: The presented solution can be used when applying the Suzuki ABCD method in practice. Originality/value: The described concept is an original solution created by the author.
Źródło:
Zeszyty Naukowe. Organizacja i Zarządzanie / Politechnika Śląska; 2020, 142; 205-216
1641-3466
Pojawia się w:
Zeszyty Naukowe. Organizacja i Zarządzanie / Politechnika Śląska
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
Shrinkage Porosity Criterion and Its Application to A 5.5 Ton Steel Ingot
Autorzy:
Zhang, C.
Bao, Y.
Wang, M.
Zhang, L.
Powiązania:
https://bibliotekanauki.pl/articles/382021.pdf
Data publikacji:
2016
Wydawca:
Polska Akademia Nauk. Czytelnia Czasopism PAN
Tematy:
foundry industry
quality management
shrinkage porosity
ingot solidification
application of information technology
numerical simulation
przemysł odlewniczy
zarządzanie jakością
porowatość
krzepnięcie
zastosowanie technologii informatycznych
symulacja numeryczna
Opis:
In order to predict the distribution of shrinkage porosity in steel ingot efficiently and accurately, a criterion R√L and a method to obtain its threshold value were proposed. The criterion R√L was derived based on the solidification characteristics of steel ingot and pressure gradient in the mushy zone, in which the physical properties, the thermal parameters, the structure of the mushy zone and the secondary dendrite arm spacing were all taken into consideration. The threshold value of the criterion R√L was obtained with combination of numerical simulation of ingot solidification and total solidification shrinkage rate. Prediction of the shrinkage porosity in a 5.5 ton ingot of 2Cr13 steel with criterion R√L>0.21 m・℃1/2・s-3/2 agreed well with the results of experimental sectioning. Based on this criterion, optimization of the ingot was carried out by decreasing the height-to-diameter ratio and increasing the taper, which successfully eliminated the centreline porosity and further proved the applicability of this criterion.
Źródło:
Archives of Foundry Engineering; 2016, 16, 2; 27-32
1897-3310
2299-2944
Pojawia się w:
Archives of Foundry Engineering
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
Methods of Computational Intelligence in the Context of Quality Assurance in Foundry Products
Autorzy:
Rojek, G.
Regulski, K.
Wilk-Kołodziejczyk, D.
Powiązania:
https://bibliotekanauki.pl/articles/380386.pdf
Data publikacji:
2016
Wydawca:
Polska Akademia Nauk. Czytelnia Czasopism PAN
Tematy:
application of information technology
foundry industry
quality management
casting defects
computational intelligence
artificial intelligence
zastosowanie technologii informatycznych
przemysł odlewniczy
zarządzanie jakością
wady odlewnicze
inteligencja obliczeniowa
sztuczna inteligencja
Opis:
One way to ensure the required technical characteristics of castings is the strict control of production parameters affecting the quality of the finished products. If the production process is improperly configured, the resulting defects in castings lead to huge losses. Therefore, from the point of view of economics, it is advisable to use the methods of computational intelligence in the field of quality assurance and adjustment of parameters of future production. At the same time, the development of knowledge in the field of metallurgy, aimed to raise the technical level and efficiency of the manufacture of foundry products, should be followed by the development of information systems to support production processes in order to improve their effectiveness and compliance with the increasingly more stringent requirements of ergonomics, occupational safety, environmental protection and quality. This article is a presentation of artificial intelligence methods used in practical applications related to quality assurance. The problem of control of the production process involves the use of tools such as the induction of decision trees, fuzzy logic, rough set theory, artificial neural networks or case-based reasoning.
Źródło:
Archives of Foundry Engineering; 2016, 16, 2; 11-16
1897-3310
2299-2944
Pojawia się w:
Archives of Foundry Engineering
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
Improving Quality and Occupational Safety on Automated Casting Lines
Autorzy:
Kukla, S.
Powiązania:
https://bibliotekanauki.pl/articles/380123.pdf
Data publikacji:
2017
Wydawca:
Polska Akademia Nauk. Czytelnia Czasopism PAN
Tematy:
foundry industry
quality management
automation in foundry
application of information technology
modelling of production systems
simulation of production systems
work ergonomics
przemysł odlewniczy
zarządzanie jakością
automatyzacja w odlewni
zastosowanie technologii informatycznych
modelowanie systemów produkcyjnych
symulacja systemów produkcyjnych
ergonomia pracy
Opis:
The paper presents a practical example of improving quality and occupational safety on automated casting lines. Working conditions on the line of box moulding with horizontal mould split were analysed due to low degree of automation at the stage of cores or filters installation as well as spheroidizing mortar dosing. A simulation analysis was carried out, which was related to the grounds of introducing an automatic mortar dispenser to the mould. To carry out the research, a simulation model of a line in universal Arena software for modelling and simulation of manufacturing systems by Rockwell Software Inc. was created. A simulation experiment was carried out on a model in order to determine basic parameters of the working system. Organization and working conditions in other sections of the line were also analysed, paying particular attention to quality, ergonomics and occupational safety. Ergonomics analysis was carried out on manual cores installation workplace and filters installation workplace, and changes to these workplaces were suggested in order to eliminate actions being unnecessary and onerous for employees.
Źródło:
Archives of Foundry Engineering; 2017, 17, 3; 69-72
1897-3310
2299-2944
Pojawia się w:
Archives of Foundry Engineering
Dostawca treści:
Biblioteka Nauki
Artykuł
    Wyświetlanie 1-5 z 5

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