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Tytuł:
On centralizer of semiprime inverse semiring
Autorzy:
Sara, S.
Aslam, M.
Javed, M.
Powiązania:
https://bibliotekanauki.pl/articles/728840.pdf
Data publikacji:
2016
Wydawca:
Uniwersytet Zielonogórski. Wydział Matematyki, Informatyki i Ekonometrii
Tematy:
inverse semiring
semiprime inverse semiring
commutators
left(right) centralizer
Opis:
Let S be 2-torsion free semiprime inverse semiring satisfying A₂ condition of Bandlet and Petrich [1]. We investigate, when an additive mapping T on S becomes centralizer.
Źródło:
Discussiones Mathematicae - General Algebra and Applications; 2016, 36, 1; 71-84
1509-9415
Pojawia się w:
Discussiones Mathematicae - General Algebra and Applications
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
An EWMA control chart for the exponential distribution using repetitive sampling plan
Autorzy:
Azam, M.
Aslam, M.
Jun, C. -H.
Powiązania:
https://bibliotekanauki.pl/articles/406458.pdf
Data publikacji:
2017
Wydawca:
Politechnika Wrocławska. Oficyna Wydawnicza Politechniki Wrocławskiej
Tematy:
control chart
EWMA statistic
exponential distribution
normal distribution
average run length
Opis:
A new EWMA control chart has been proposed under repetitive sampling when a quantitative characteristic follows the exponential distribution. The properties of the proposed chart, including the average run lengths has been is compared with two existing control charts with the help of simulated data. An application of the proposed chart hs been illustrated using a healthcare data set.
Źródło:
Operations Research and Decisions; 2017, 27, 2; 5-19
2081-8858
2391-6060
Pojawia się w:
Operations Research and Decisions
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
A control chart using belief information for a gamma distribution
Autorzy:
Aslam, M.
Khan, N.
Jun, C. -H.
Powiązania:
https://bibliotekanauki.pl/articles/406500.pdf
Data publikacji:
2016
Wydawca:
Politechnika Wrocławska. Oficyna Wydawnicza Politechniki Wrocławskiej
Tematy:
control chart
belief statistic
average run length
gamma distribution
Opis:
The design of a control chart has been presented using a belief estimator by assuming that the quantitative characteristic of interest follows the gamma distribution. The authors present the structure of the proposed chart and derive the average run lengths for in-control and a shifted process. The aver-age run lengths for various specified parameters have been reported. The efficiency of the proposed chart has been compared to existing control charts. The application of the proposed chart is illustrated with the help of simulated data.
Źródło:
Operations Research and Decisions; 2016, 26, 4; 5-19
2081-8858
2391-6060
Pojawia się w:
Operations Research and Decisions
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
On the performance of modified EWMA charts using resampling schemes
Autorzy:
Khan, N.
Yasmin, T.
Aslam, M.
Jun, C. -H.
Powiązania:
https://bibliotekanauki.pl/articles/406444.pdf
Data publikacji:
2018
Wydawca:
Politechnika Wrocławska. Oficyna Wydawnicza Politechniki Wrocławskiej
Tematy:
repetitive group sampling
multiple dependent state sampling
EWMA statistic
average run length
simulation
Opis:
Two popular sampling schemes have been used to design control charts by means of a modified exponentially weighted moving average (EWMA) statistic. The structures of the proposed charts, using repetitive group sampling and multiple dependent state sampling, have been presented. The values of average run length have been determined by some specified control chart parameters. The performance of the proposed chart was illustrated via a simulation study. The efficiency of the proposed chart has been compared with the existing one. A practical example based on real data was also given to explain the application of the proposed chart in industry.
Źródło:
Operations Research and Decisions; 2018, 28, 3; 29-43
2081-8858
2391-6060
Pojawia się w:
Operations Research and Decisions
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
A mixed control chart adapted to the truncated life test based on the Weibull distribution
Autorzy:
Khan, N.
Aslam, M.
Kim, K.-J.
Jun, C. -H.
Powiązania:
https://bibliotekanauki.pl/articles/406432.pdf
Data publikacji:
2017
Wydawca:
Politechnika Wrocławska. Oficyna Wydawnicza Politechniki Wrocławskiej
Tematy:
life test
Weibull distribution
attribute chart
binomial distribution
average run length
Opis:
The design of a new mixed attribute control chart adapted to a truncated life test has been pre-sented. It was assumed that the lifetime of a product follows the Weibull distribution and the number of failures was observed using a truncated life test, where the test duration was specified as a fraction of the mean lifespan. The proposed control chart consists of two pairs of control limits based on a binomial distribution and one lower bound. The average run length of the chart was determined for various levels of shift constants and specified parameters. The efficiency of the chart is compared with an existing control chart in terms of the average run length. The application of the proposed chart is discussed with the aid of a simulation study.
Źródło:
Operations Research and Decisions; 2017, 27, 1; 43-55
2081-8858
2391-6060
Pojawia się w:
Operations Research and Decisions
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
Risk factors for outbreaks caused by variant strain of Newcastle disease on environmentally controlled broiler chicken farms in Lahore, Pakistan
Autorzy:
Maqsood, R.
Khan, A.
Mushtaq, M.H.
Yaqub, T.
Aslam, M.A.
Rashid, H.B.
Gill, S.S.
Akram, R.
Rehman, A.
Chaudhry, M.
Powiązania:
https://bibliotekanauki.pl/articles/2087145.pdf
Data publikacji:
2021
Wydawca:
Polska Akademia Nauk. Czytelnia Czasopism PAN
Tematy:
Newcastle disease
retrospective
environmentally controlled house
biosecurity
vaccine
Źródło:
Polish Journal of Veterinary Sciences; 2021, 24, 4; 497-503
1505-1773
Pojawia się w:
Polish Journal of Veterinary Sciences
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
Electrical and Interfacial Properties of p-Si/P3HT Organic-on-Inorganic Junction Barrier
Autorzy:
Yakuphanoglu, F.
Shah, M.
Aslam Farooq, W.
Powiązania:
https://bibliotekanauki.pl/articles/1493722.pdf
Data publikacji:
2011-09
Wydawca:
Polska Akademia Nauk. Instytut Fizyki PAN
Tematy:
81.07.Pr
78.40.Me
Opis:
The electrical characterization of the Al/p-Si/P3HT/Ag organic-on-inorganic diode was done by current-voltage, capacitance-voltage and conductance-voltage methods. The values of ideality factor and barrier height of the diode were determined from the current-voltage characteristics and found as 2.32 and 0.77 eV, respectively. These values were also determined from Cheung's functions and Norde's method due to the non-ideal behavior of the diode. The electronic parameters obtained from the various methods indicate a good consistency with each other. The density of interface states for Al/p-Si/P3HT/Ag organic-on-inorganic diode was found to be $7.64 × 10^{10} cm^{-2} eV^{-1}$. The obtained electrical parameters of the Al/p-Si/P3HT/Ag organic-on-inorganic diode are higher than that of the conventional Ag/p-Si Schottky diodes. This indicates that the electrical properties of the silicon Schottky diodes can be controlled using organic interfacial layer.
Źródło:
Acta Physica Polonica A; 2011, 120, 3; 558-562
0587-4246
1898-794X
Pojawia się w:
Acta Physica Polonica A
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
A study on exponentiated Gompertz distribution under Bayesian discipline using informative priors
Autorzy:
Aslam, Muhammad
Afzaal, Mehreen
Bhatti, M. Ishaq
Powiązania:
https://bibliotekanauki.pl/articles/1917073.pdf
Data publikacji:
2021-12-08
Wydawca:
Główny Urząd Statystyczny
Tematy:
exponentiated Gompertz distribution
loss functions
informative priors
Bayes estimators
posterior risks
Opis:
The exponentiated Gompertz (EGZ) distribution has been recently used in almost all areas of human endeavours, starting from modelling lifetime data to cancer treatment. Various applications and properties of the EGZ distribution are provided by Anis and De (2020). This paper explores the important properties of the EGZ distribution under Bayesian discipline using two informative priors: the Gamma Prior (GP) and the Inverse Levy Prior (ILP). This is done in the framework of five selected loss functions. The findings show that the two best loss functions are the Weighted Balance Loss Function (WBLF) and the Quadratic Loss Function (QLF). The usefulness of the model is illustrated by the use of reallife data in relation to simulated data. The empirical results of the comparison are presented through a graphical illustration of the posterior distributions.
Źródło:
Statistics in Transition new series; 2021, 22, 4; 101-119
1234-7655
Pojawia się w:
Statistics in Transition new series
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
Investigation of half-normal model using informative priors under Bayesian structure
Autorzy:
Khawar Kiani, Sania
Aslam, Muhammad
Bhatti, M. Ishaq
Powiązania:
https://bibliotekanauki.pl/articles/18105212.pdf
Data publikacji:
2023-09-08
Wydawca:
Główny Urząd Statystyczny
Tematy:
informative prior
squared root inverted gamma distribution (SRIG)
Bayesian hypothesis testing
loss functions
Opis:
This paper considers properties of half-normal distribution using informative priors under the Bayesian criterion. It employs the squared root inverted gamma, Chi-square and Rayleigh distributions as the prior distribution to construct the Posterior distributions of the respective distributional parameters. Hyperparameters are elicited via prior predictive distribution. The properties of posterior distribution are studied, and their graphs are presented using a real data set. A comprehensive simulation scheme is conducted using informative priors. Bayes estimates are obtained using the loss functions (squared error loss function, modified loss function, quadratic loss function and Degroot loss function). Statistical inferences interval estimates and Bayesian hypothesis testing are presented to demonstrate the usefulness of the study.
Źródło:
Statistics in Transition new series; 2023, 24, 4; 19-36
1234-7655
Pojawia się w:
Statistics in Transition new series
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
Effect of demineralization on the physiochemical structure and thermal degradation of acid treated indigenous rice husk
Autorzy:
Aslam, U.
Ramzan, N.
Iqbal, T.
Kazmi, M.
Ikhlaq, A.
Powiązania:
https://bibliotekanauki.pl/articles/779611.pdf
Data publikacji:
2016
Wydawca:
Zachodniopomorski Uniwersytet Technologiczny w Szczecinie. Wydawnictwo Uczelniane ZUT w Szczecinie
Tematy:
demineralization
leaching agent
physiochemical structure
alkali and alkaline earth metals
thermal degradation
Opis:
Energy generation from biomass presents some serious problems like slagging, fouling and corrosion of boilers. To address these problems, demineralization of biomass is performed using different leaching agents. This study is focused on determining the influence of leaching agents and leaching time on the physiochemical structure of rice husk during demineralization. Dilute (5% wt) solutions of HCl and H2SO4 were used for the demineralization of rice husk separately with leaching time of 15, 60 and 120 minutes. It is shown that H2SO4 exhibited higher removal of alkali and alkaline earth metals (AAEM) comparatively as depicted by the 34.2% decrease in ash content along with an increase of 7.10% in the heating value. The acid has been seen to induce more notable changes in physiochemical structure as depicted by the FTIR spectra and SEM micrographs. The thermal degradation behavior of the demineralized rice husk has also been reported.
Źródło:
Polish Journal of Chemical Technology; 2016, 18, 3; 117-121
1509-8117
1899-4741
Pojawia się w:
Polish Journal of Chemical Technology
Dostawca treści:
Biblioteka Nauki
Artykuł
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