Temat: weibull - Katalog OPAC zbiorów

Skocz do pozycji: 1.

Tytuł:: An inflationary inventory model with time dependent demand with Weibull distribution deterioration and partial backlogging under permissible delay in payments
Autorzy:: Basu, M.
Sinha, S.
Powiązania:: https://bibliotekanauki.pl/articles/969730.pdf
Data publikacji:: 2007
Wydawca:: Polska Akademia Nauk. Instytut Badań Systemowych PAN
Tematy:: inflation
partial backlogging
Weibull distribution
permissible delay in payments
Opis:: This paper proposes to present a general inventory model with due consideration to the factors of time dependent partial backlogging and time dependent deterioration. It also takes into account the impact of inflation, time-dependent demand and permissible delay in payments.
Źródło:: Control and Cybernetics; 2007, 36, 1; 203-217
0324-8569
Pojawia się w:: Control and Cybernetics
Dostawca treści:: Biblioteka Nauki

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Skocz do pozycji: 2.

Tytuł:: Sudden death testing versus traditional censored life testing. A Monte-Carlo study
Autorzy:: Motyka, R.
Powiązania:: https://bibliotekanauki.pl/articles/969717.pdf
Data publikacji:: 2007
Wydawca:: Polska Akademia Nauk. Instytut Badań Systemowych PAN
Tematy:: sudden death testing
time terminated life test
Weibull distribution
Monte Carlo method
Opis:: This paper considers two competing methods intended to shorten lifetime tests. The first method, due to L.G. Johnson, is known in reliability engineering as "sudden death testing". Its competitor is a widely known time-terminated, right-censored test. Times of tests carried out according to these methods are set equal. Then, methods are compared in terms of variances and biases of lifetime parameter estimators. In addition, median, mode, skewness and kurtosis of estimator distributions are also calculated and compared. All data needed came from a large-scale Monte-Carlo numerical experiment.
Źródło:: Control and Cybernetics; 2007, 36, 1; 241-250
0324-8569
Pojawia się w:: Control and Cybernetics
Dostawca treści:: Biblioteka Nauki

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Skocz do pozycji: 3.

Tytuł:: Record-based inference and associated cost analysis for the Weibull distribution
Autorzy:: Doostparast, M.
Powiązania:: https://bibliotekanauki.pl/articles/205931.pdf
Data publikacji:: 2015
Wydawca:: Polska Akademia Nauk. Instytut Badań Systemowych PAN
Tematy:: cost analysis
likelihood function
record data
total time on test
Weibull model
lifetime model
Opis:: In statistical process control, record schemes are used to reduce the total time on test for the inspection inquiry. In these schemes, units are examined sequentially and successive minimum values are recorded. On the basis of record data, Samaniego and Whitaker (1986) obtained the maximum likelihood (ML) estimate of the mean for an exponential distribution. Since the two parameter Weibull model, as an extension of the exponential distribution, has a wide range of application, Hoinkes and Padgett (1994) derived the record-based ML estimators for the parameters of interest in this model. This paper shows that the ML estimates of the Weibull parameters do not always exist for the basis of records. Thus, a new scheme is proposed, in which the ML estimates of the parameters always exist. An analytic cost-based comparison between the usual and the New scheme is also carried out. Finally, some concluding remarks and open problems are formulated.
Źródło:: Control and Cybernetics; 2015, 44, 1; 163-177
0324-8569
Pojawia się w:: Control and Cybernetics
Dostawca treści:: Biblioteka Nauki

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