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    Tytuł:
    Wybrane aspekty ryzyka w procesie produkcyjnym realizowanym w przodkach ścianowych kopalń węgla kamiennego
    Selected aspects of risk in the production process in longwall fronts in coal mines
    Autorzy:
    Snopkowski, R.
    Napieraj, A.
    Sukiennik, M.
    Powiązania:
    https://bibliotekanauki.pl/articles/165660.pdf
    Data publikacji:
    2015
    Wydawca:
    Stowarzyszenie Inżynierów i Techników Górnictwa
    Tematy:
    węgiel kamienny
    ryzyko
    mapa procesu
    przodek ścianowy
    hard coal
    risk
    process chart
    longwall front
    Opis:
    W artykule podjęto próbę kwantyfikacji ryzyka produkcyjnego, związanego z procesem produkcyjnym realizowanym w przodkach ścianowych kopalń węgla kamiennego. Określono mapę cyklu produkcyjnego realizowanego w technologii jednokierunkowego urabiania oraz wyszczególniono potencjalne rodzaje ryzyka oraz skutki, jakie może powodować dane niepowodzenie. Wyznaczono formułę całkową, której wykorzystanie umożliwia wyznaczenie prawdopodobieństwa niewykonania planu produkcyjnego.
    This paper attempts to quantify the production risk connected with production process in longwall fronts in coal mines. A production cycle chart for one-way winning technology was determined and potential types of risk and effects which can be brought by a particular failure presented. An integral formula was defined which may be used to determine probability of failure in the execution of the production plan.
    Źródło:
    Przegląd Górniczy; 2015, 71, 8; 86-89
    0033-216X
    Pojawia się w:
    Przegląd Górniczy
    Dostawca treści:
    Biblioteka Nauki
    Artykuł
    Tytuł:
    Defect Reduction by Total Quality Management in a Crackers Manufacturing System
    Autorzy:
    Hasan, Md. Zahid
    Rezwan, Ashique
    Islam, Md. Rakibul
    Dutta, Abir
    Powiązania:
    https://bibliotekanauki.pl/articles/1177871.pdf
    Data publikacji:
    2018
    Wydawca:
    Przedsiębiorstwo Wydawnictw Naukowych Darwin / Scientific Publishing House DARWIN
    Tematy:
    Check sheet
    Fishbone diagram
    Pareto analysis
    Process flow chart
    TQM
    defect etc
    Opis:
    The main focus was to reduce defects in production lines of a newly started crackers manufacturing company as well as develop such a system so that mass defects can’t happen again. To ensure a rated benefit & make the market value constant in the market an efficient system is one of the primary requirements. The prime qualities must be constant. So, to ensure that the causes of defects will not happen again the root-cause analysis has been done from the record of check sheet. Then all the errors from vital elements of production were detected and actual parameters, ingredient composition, temperature, pressure, steam supply etc. have been tried to maintain constantly. The co-operation of top to bottom hierarchy made this process successful & also able to build a permanent preventive system. Finally, a stable & reliable production system has been established to maintain target production and achieve maximum benefit ensuring excellent quality of product.
    Źródło:
    World Scientific News; 2018, 98; 150-171
    2392-2192
    Pojawia się w:
    World Scientific News
    Dostawca treści:
    Biblioteka Nauki
    Artykuł
    Tytuł:
    Performance Improvement Procedure of Engineering Students of Bangladesh Applying Total Quality Management: A Review
    Autorzy:
    Dutta, Abir
    Shatu, Ruhul Amin
    Powiązania:
    https://bibliotekanauki.pl/articles/1165657.pdf
    Data publikacji:
    2018
    Wydawca:
    Przedsiębiorstwo Wydawnictw Naukowych Darwin / Scientific Publishing House DARWIN
    Tematy:
    Check Sheet
    Kaizen
    PDCA cycle etc.
    Pareto Analysis
    Process flow chart
    Root Cause Analysis
    Stratification Analysis
    TQM
    Opis:
    The main focus of this paper is to integrate the application of Total Quality Management & Kaizen in improvement of Engineering students. Most Engineering students get depressed when they can’t understand the topics & fail to cut a good figure in the semester final exam as well as there CGPA becomes poor. 80-90% students blame the curriculum & system but it is not easy to change the system rapidly. The irony is, in Bangladesh most of the time is spent to memorize books for good academic performance. The Engineering Education Curriculum is mainly memorizing based. Students have to learn a lot of theory & write them in the exam as given in reference books to get good marks. This system makes students bookish & discourages them from creativity & innovation. The evaluation system in this educational system only represents how much a student spends time for academic studies not the creativity, intelligence, passion & dedication etc. This makes frustrated who are involved in innovative projects, research or contests. Without creativity & innovation it is not possible to advance the science & technology which is the main purpose of Engineering. In this research a structured & detailed process of TQM & Kaizen has been discussed & showed which is suitable to achieve which goal. One is for determining & analyzing problems & another is one of the best process to achieve a satisfactory outcome in academic & professional development process.
    Źródło:
    World Scientific News; 2018, 107; 216-223
    2392-2192
    Pojawia się w:
    World Scientific News
    Dostawca treści:
    Biblioteka Nauki
    Artykuł
    Tytuł:
    Two smart tools for control chart analysis
    Autorzy:
    Hamrol, A.
    Kujawińska, A.
    Powiązania:
    https://bibliotekanauki.pl/articles/384657.pdf
    Data publikacji:
    2009
    Wydawca:
    Sieć Badawcza Łukasiewicz - Przemysłowy Instytut Automatyki i Pomiarów
    Tematy:
    process
    control chart
    process stability
    trend
    pattern recognition
    Opis:
    The paper deals with the analysis of process stability with the use of process control charts. A new idea of pattern recognition and two original methods of data processing, called OTT and MW have been described. The software application CCAUS (Control Charts - Analysis Unnatural Symptoms) supporting process control charts analysis withOTT and MW has been presented as well. Also the paper contains the results of the verification of the proposed methods performed on the basis of data obtained from two machining operations.
    Źródło:
    Journal of Automation Mobile Robotics and Intelligent Systems; 2009, 3, 3; 90-95
    1897-8649
    2080-2145
    Pojawia się w:
    Journal of Automation Mobile Robotics and Intelligent Systems
    Dostawca treści:
    Biblioteka Nauki
    Artykuł
    Tytuł:
    Attribute np control charts using resampling systems for monitoring non-conforming items using exponentiated half logistic distribution
    Autorzy:
    Tanveer, Ammara
    Azam, Muhammad
    Aslam, Muhammad
    Shujaat Navaz, Muhammad
    Powiązania:
    https://bibliotekanauki.pl/articles/406284.pdf
    Data publikacji:
    2020
    Wydawca:
    Politechnika Wrocławska. Oficyna Wydawnicza Politechniki Wrocławskiej
    Tematy:
    attribute chart
    time truncation
    process
    statistical distributions
    sampling schemes
    Opis:
    An attribute np control chart has been designed using resampling systems for monitoring non- -conforming items under exponentiated half-logistic distribution. We suppose that lifetime follows exponentiated half-logistic distribution. For the proposed control charts, the optimal parameters and control limits have been obtained. The operational formulas for in-control and out of control average run lengths (ARLs) have been derived. Control constants are established by considering the target in-control ARL at a normal process. The extensive ARL tables are reported for various parameters and shifted values of process parameters. The performance of the proposed control chart is evaluated with several existing charts with regard to ARLs, which empower the presented chart and prove far better for timely detection of assignable causes. A wide range of tables, a real-life example, and simulation study for RGS and MDS are given for a better understanding of the problem.
    Źródło:
    Operations Research and Decisions; 2020, 30, 2; 115-143
    2081-8858
    2391-6060
    Pojawia się w:
    Operations Research and Decisions
    Dostawca treści:
    Biblioteka Nauki
    Artykuł
    Tytuł:
    Breakdown cause and effect analysis. Case study
    Autorzy:
    Biały, W.
    Ružbarský, J.
    Powiązania:
    https://bibliotekanauki.pl/articles/409633.pdf
    Data publikacji:
    2018
    Wydawca:
    STE GROUP
    Tematy:
    analysis
    production process
    breakdown
    FMEA
    Ishikawa diagram
    Pareto chart
    Opis:
    Every company must ensure that the production process proceeds without interferences. Within this article, the author uses the term “interferences” in reference to unplanned stoppages caused by breakdowns. Unfortunately, usually due to machine operators’ mistakes, machines break, which causes stoppages thus generating additional costs for the company. This article shows a cause and effect analysis of a breakdown in a production process. The FMEA as well as quality management tools: the Ishikawa diagram and Pareto chart were used for the analysis. Correction measures were presented which allowed for a significant reduction in the number of stoppages caused by breakdowns.
    Źródło:
    Management Systems in Production Engineering; 2018, 2 (26); 83-87
    2299-0461
    Pojawia się w:
    Management Systems in Production Engineering
    Dostawca treści:
    Biblioteka Nauki
    Artykuł
    Tytuł:
    Analysis and perspectives on multivariate statistical process control charts used in the industrial sector: a systematic literature review
    Autorzy:
    Ueda, Renan M.
    Agostino, Ìcaro R. S.
    Souza, Adriano M.
    Powiązania:
    https://bibliotekanauki.pl/articles/2127533.pdf
    Data publikacji:
    2022
    Wydawca:
    Polska Akademia Nauk. Czytelnia Czasopism PAN
    Tematy:
    multivariate statistical process control
    systematic review
    control chart
    manufacturing
    industrial
    Opis:
    The objective of this article is to carry out a systematic review of the literature on multivariate statistical process control (MSPC) charts used in industrial processes. The systematic review was based on articles published via Web of Science and Scopus in the last 10 years, from 2010 to 2020, with 51 articles on the theme identified. This article sought to identify in which industry the MSPC charts are most applied, the types of multivariate control charts used and probability distributions adopted, as well as pointing out the gaps and future directions of research. The most commonly represented industry was electronics, featuring in approximately 25% of the articles. The MSPC chart most frequently applied in the industrial sector was the traditional T2 of Harold Hotelling (Hotelling, 1947), found in 26.56% of the articles. Almost half of the combinations between the probabilistic distribution and the multivariate control graphs, i.e., 49.4%, considered that the data followed a normal distribution. Gaps and future directions for research on the topic are presented at the end.
    Źródło:
    Management and Production Engineering Review; 2022, 13, 2; 48--60
    2080-8208
    2082-1344
    Pojawia się w:
    Management and Production Engineering Review
    Dostawca treści:
    Biblioteka Nauki
    Artykuł
    Tytuł:
    Application of statistical process control for proper processing of the Fore-Sudetic Monocline copper ore
    Autorzy:
    Tasdemir, A.
    Kowalczuk, P. B.
    Powiązania:
    https://bibliotekanauki.pl/articles/110236.pdf
    Data publikacji:
    2014
    Wydawca:
    Politechnika Wrocławska. Oficyna Wydawnicza Politechniki Wrocławskiej
    Tematy:
    copper
    upgrading
    statistical process control
    ARIMA model
    Shewhart’s chart
    autocorrelation
    Opis:
    The paper deals with Statistical Process Control (SPC) applied to three original and three generated variables of copper ore upgrading by flotation. The six variables were evaluated by the SPC charts based on industrial upgrading of copper ore data gathered during one month of operation in the form of copper content in feed, concentrate and tailing. The remaining three upgrading variables were concentrate yield, copper recovery in concentrate and non-copper components recovery in tailing. Although, all variables obeyed normal distribution, considerable autocorrelation was detected between observations for all variables. For this reason, the traditional Shewhart control charts, that assume the process data generated are normally and independently distributed, resulted in many of out-of-control points which may lead to wrong decisions regarding the control of process variables. The most suitable ARIMA time series models were determined for all variables to remove autocorrelations. The ARIMA(0,1,1) model was found the best for copper content in feed, copper content in concentrate, concentrate yield and non-copper components recovery in tailing, while the AR(1) model was suitable for copper content in tailing and copper recovery in concentrate.
    Źródło:
    Physicochemical Problems of Mineral Processing; 2014, 50, 1; 249-264
    1643-1049
    2084-4735
    Pojawia się w:
    Physicochemical Problems of Mineral Processing
    Dostawca treści:
    Biblioteka Nauki
    Artykuł
    Tytuł:
    Interval Type-2 fuzzy Exponentially Weighted Moving Average Control Chart
    Autorzy:
    Adepoju, Akeem Ajibola
    Abdulkadir, Sauta S.
    Jibasen, Danjuma
    Chiroma, Haruna
    Powiązania:
    https://bibliotekanauki.pl/articles/2021442.pdf
    Data publikacji:
    2022-03-15
    Wydawca:
    Główny Urząd Statystyczny
    Tematy:
    Exponentially weighted moving average control chart
    Fuzzy control chart
    Fuzzy sets
    Interval Type-2 fuzzy sets
    Interval Type-2 fuzzy Exponentially Weighted Moving Average Control Chart
    Statistical process control
    Opis:
    Some industrial data often come with uncertainty, which in some cases depends on the decision of those responsible for taking the measurement in the production process. While the fuzzy approach helps to tackle the ambiguity that arises in the measurement, an interval type-2 fuzzy set deals with such uncertainty better due to its flexibility over the control limits of its control chart. This paper aims to develop an Interval Type-2 fuzzy Exponentially Weighted Moving Average Control Chart (IT2FEWMA) under the fuzzy type-2 condition. This development will facilitate monitoring small and moderate shifts in the production process in conditions of uncertainty.
    Źródło:
    Statistics in Transition new series; 2022, 23, 1; 185-200
    1234-7655
    Pojawia się w:
    Statistics in Transition new series
    Dostawca treści:
    Biblioteka Nauki
    Artykuł
    Tytuł:
    Rezultaty razrabotki i testovyh ispytanij diagnostičeskoj sistemy ocenki kačestva vnutricilindrovyh processov dizelâ
    Results of the development of diagnostic tests and test quality assessment processes intracylinder Diesel
    Autorzy:
    Vališhin, A.
    Powiązania:
    https://bibliotekanauki.pl/articles/360405.pdf
    Data publikacji:
    2013
    Wydawca:
    Akademia Morska w Szczecinie. Wydawnictwo AMSz
    Tematy:
    diesel
    diagnosis
    intracylinder process
    indicator chart
    statistical methods
    normal Gaussian distributions
    skewness
    kurtosis
    Opis:
    The paper presents the results of the development of diagnostic quality systems intracylinder process of marine Diesel. Diagnostic system is designed based on software product Excel, which greatly simplifies its use on vessels and reduces the cost of its acquisition. In the developed system it uses the methods of statistical evaluation of the Diesel engine by comparing skewness and kurtosis of the reference and the actual indicator diagrams.
    Źródło:
    Zeszyty Naukowe Akademii Morskiej w Szczecinie; 2013, 34 (106); 85-90
    1733-8670
    2392-0378
    Pojawia się w:
    Zeszyty Naukowe Akademii Morskiej w Szczecinie
    Dostawca treści:
    Biblioteka Nauki
    Artykuł
    Tytuł:
    Statistical process control and CAQ systems as a tools assuring quality in the automotive industry
    Autorzy:
    Wiecha, Łukasz
    Ćwikła, Grzegorz
    Powiązania:
    https://bibliotekanauki.pl/articles/2064864.pdf
    Data publikacji:
    2019
    Wydawca:
    STE GROUP
    Tematy:
    IATF 16949:2016 standard
    VDA
    SPC
    CAQ
    automotive industry
    process stability and capability
    control chart
    Opis:
    The aim of the article is to present the case study of implementation of the example CAQ system, which allows to meet the requirements of IATF 16949:2016 and the VDA 6.1 standards in the field of statistical process control (SPC). The foundations of the CAQ systems concept and their specific requirements, especially for companies operating in the automotive industry, for which modern CAQ tools are necessary, in the described case based on the LEAN-QS program, are presented. The article presents the observations and results of the analysis of the operation of the quality assurance system in a company that is a supplier of car parts. One of the modules of the LEAN-QS program was implemented there, which makes it possible to meet the requirements of a certified quality management system. The effectiveness of the presented tool was demonstrated, allowing to meet industry requirements while minimizing resources necessary for supervision and proper implementation of the quality management system process, which in this case is the SPC.
    Źródło:
    Multidisciplinary Aspects of Production Engineering; 2019, 2, 1; 336--344
    2545-2827
    Pojawia się w:
    Multidisciplinary Aspects of Production Engineering
    Dostawca treści:
    Biblioteka Nauki
    Artykuł
    Tytuł:
    Wykorzystanie Kart Kontrolnych Shewharta do diagnozowania stanów statystycznego uregulowania procesów produkcyjnych
    Shewhart Control Charts application in diagnosing the states of statistical regulation of production processes
    Autorzy:
    Szkoda, J.
    Powiązania:
    https://bibliotekanauki.pl/articles/328252.pdf
    Data publikacji:
    2002
    Wydawca:
    Polska Akademia Nauk. Polskie Towarzystwo Diagnostyki Technicznej PAN
    Tematy:
    diagnostyka
    proces produkcyjny
    karta kontrolna Shewharta
    statystyka
    jakość
    diagnostics
    production process
    Shewhart control chart
    statistics
    quality
    Opis:
    Przedstawiono charakterystyki Karty Kontroli Shewharta do diagnozowania stanów procesów produkcyjnych wartościami liczbowymi oraz według ocen alternatywnych. Opisano symptomy zmienności systematycznej na Kartach Kontroli Shewharta, oraz diagnozowanie na ich podstawie stanów statycznego uregulowania procesów produkcyjnych.
    The paper presents characteristics and types of Shewhart Control Charts. The paper defines the principles of designing Shewhart Control Charts in diagnosing the states of production processes by means of numerical values as well as alternative evaluation. The paper describes the symptoms of systematical variability in the Shewhart Control Charts and diagnosing their basis the states of statistical regulation of production processes.
    Źródło:
    Diagnostyka; 2002, 26; 53-58
    1641-6414
    2449-5220
    Pojawia się w:
    Diagnostyka
    Dostawca treści:
    Biblioteka Nauki
    Artykuł
    Tytuł:
    Arkusz kalkulacyjny Excel w nauczaniu statystycznej kontroli jakości procesu produkcji
    Excel calculation sheet in teaching of statistical quality control in production process
    Autorzy:
    Kuna-Broniowska, I.
    Powiązania:
    https://bibliotekanauki.pl/articles/290802.pdf
    Data publikacji:
    2005
    Wydawca:
    Polskie Towarzystwo Inżynierii Rolniczej
    Tematy:
    statystyczna kontrola jakości
    arkusz kontrolny
    karta kontrolna
    przedział tolerancji
    odchylenie standardowe
    zmienność naturalna
    wykres Pareto
    statistical process control
    data collection sheets
    control chart
    tolerance limit
    standard deviation
    natural variability
    Pareto chart
    Opis:
    Rozważano możliwość wykorzystania narzędzi programu Excel w statystycznej kontroli jakości procesu produkcji oraz w nauczaniu tej metody kontroli jakości. Analizę możliwości programu przeprowadzono zarówno pod kątem wykorzystania jego standardowych funkcji, jak też opracowania makr, szablonów arkuszy dla danych pomiarowych oraz instrukcji.
    Paper considered the possibilities of applying the Excel programme to statistical control of production process quality as well as in teaching of this quality control method. The programme was analyzed in respect of its standard functions as well as of the macros’ elaboration, data collection sheet patterns and instructions.
    Źródło:
    Inżynieria Rolnicza; 2005, R. 9, nr 8, 8; 203-210
    1429-7264
    Pojawia się w:
    Inżynieria Rolnicza
    Dostawca treści:
    Biblioteka Nauki
    Artykuł
    Tytuł:
    Application of the statistical control of the production processes in organisation
    Zastosowanie statystycznej kontroli w zakresie procesów produkcyjnych w organizacji
    Autorzy:
    Žarnovský, J.
    Drlička, R.
    Kováč, I.
    Petruš, M.
    Powiązania:
    https://bibliotekanauki.pl/articles/409896.pdf
    Data publikacji:
    2014
    Wydawca:
    STE GROUP
    Tematy:
    statistical process control
    production organization
    regulation processes
    process capability
    statistical control
    control chart
    statystyczna kontrola procesu
    organizacja produkcji
    procesy regulacyjne
    zdolności procesu
    kontrola statystyczna
    wykres sterowania
    Opis:
    All recent experiences confirm the fact that the main tasks of quality management are guaranteed only with the high skilled employees. Employees are responsible for the production plan and development, services and processes. The series of standards called ISO 9000 help to establish quality management in organization. Usage of the quality management with statistical process control is also very important for the company. Companies are spending all human, material and financial resources to improve quality management. The objective of the paper is to outline the statistical process control in production company Finalcast Ltd. Žiar nad Hronom.
    Wszystkie ostatnie doświadczenia potwierdzają fakt, że główne zadania zarządzania jakością są gwarantowane tylko z wysoko wykwalifikowanymi pracownikami. Pracownicy są odpowiedzialni za plan produkcji i rozwoju, usług i procesów. Seria norm ISO 9000 jest pomocna w celu ustalenia zarządzania jakością w organizacji. Korzystanie w zarządzaniu jakością ze statystycznej kontroli procesu jest również bardzo ważne dla firmy. Firmy wykorzystują wszystkie zasoby ludzkie, materialne i finansowe w celu poprawy jakości zarządzania. Celem pracy jest określenie statystycznego sterowania procesem w produkcji firmy Finalcast Ltd. Žiar nad Hronom.
    Źródło:
    Management Systems in Production Engineering; 2014, 3 (15); 135-139
    2299-0461
    Pojawia się w:
    Management Systems in Production Engineering
    Dostawca treści:
    Biblioteka Nauki
    Artykuł
    Tytuł:
    Production cost calculation approach based on data collected during manufacturing process
    Autorzy:
    Krześniak, Grzegorz
    Powiązania:
    https://bibliotekanauki.pl/articles/23944755.pdf
    Data publikacji:
    2022
    Wydawca:
    Stowarzyszenie Menedżerów Jakości i Produkcji
    Tematy:
    cost calculation
    cost modeling
    manufacturing costs
    control chart
    quality costs
    Statistical Process Control (SPC)
    kalkulacja kosztów
    modelowanie kosztów
    koszty produkcji
    wykres kontrolny
    koszty jakości
    statystyczna kontrola procesu
    Opis:
    The aim of the article is to present a proposal and discuss the production cost calculation procedures based on data collected during manufacturing process, according to standard SPC control chart evaluation. It is applied as a tool to support the process of continuous improvement of the manufacturing process and improve profitability by reducing the cost of production. Research methodology - the study uses the results of a literature review on the issue of cost analysis and their modeling. Key elements are the main cost components, but also those that are considered less important and may be overall decisive. Application of Statistical Process Control - as a method of data collection for cost modeling to improve overall cost structure is proposed. Originality/value - the considerations presented in the study may be the basis for determining the key components of the cost of production. The proposed simulation model allows for the determination of the main quality cost factors. This, in turn, should allow to define the main directions of searching for the optimization of the product cost in order to achieve the expected level of cost and quality.
    Źródło:
    System Safety : Human - Technical Facility - Environment; 2022, 4, 1; 19-27
    2657-5450
    Pojawia się w:
    System Safety : Human - Technical Facility - Environment
    Dostawca treści:
    Biblioteka Nauki
    Artykuł
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