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Wyszukujesz frazę "Aslam, M." wg kryterium: Autor

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    Wyświetlanie 1-12 z 12
    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:
    Studies on Thermal Degradation Behavior of Siliceous Agriculture Waste (Rice Husk, Wheat Husk and Bagasse)
    Autorzy:
    Javed, S. H.
    Aslam, U.
    Mohsin, M.
    Masooma, M.
    Riaz, S.
    Munir, Z.
    Powiązania:
    https://bibliotekanauki.pl/articles/778873.pdf
    Data publikacji:
    2015
    Wydawca:
    Zachodniopomorski Uniwersytet Technologiczny w Szczecinie. Wydawnictwo Uczelniane ZUT w Szczecinie
    Tematy:
    Siliceous agriculture waste
    Thermogravimetric Analyzer
    amorphous silica
    Opis:
    Various siliceous agriculture waste (SAW) such as rice husk, wheat husk and bagasse have been investigated to study their thermal degradation behavior using Thermogravimetric Analyzer (TGA) technique. The focus of this research is to conduct TGA of raw and acid treated (20% HCl & 1M H2SO4) SAW at heating rate 10°C/min in the atmosphere of nitrogen. The results were analyzed on the basis of thermograms and it was inferred that 24 hours soaking with 20% HCl prior to thermal degradation enhanced the percent weight loss. The process also improved the percentage of residual weight of SAW indicating the extraction of amorphous silica with increased purity. The effect of acid treatment was verified by determining chemical composition of SAW samples before and after soaking with 20% HCl. Proximate analysis, thermal degradation temperature ranges and percentage of residual weight at 800°C for each of rice husk, wheat husk and bagasse were also quantified to observe the thermal degradation behavior. XRF analysis was performed to observe the effect of acid treatment for extraction of pure silica.
    Źródło:
    Polish Journal of Chemical Technology; 2015, 17, 3; 47-51
    1509-8117
    1899-4741
    Pojawia się w:
    Polish Journal of Chemical Technology
    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:
    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
    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:
    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:
    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:
    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 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:
    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:
    Comparative evaluation of different techniques for herniorrhaphy in calves
    Autorzy:
    Fatima, A.
    Arif Khan, M.
    Aslam, S.
    Ashraf, K.
    Khalid Mahmood, A.
    Asif, M.
    Shah, S.
    Hussain, N.
    Powiązania:
    https://bibliotekanauki.pl/articles/16539145.pdf
    Data publikacji:
    2022
    Wydawca:
    Polska Akademia Nauk. Czasopisma i Monografie PAN
    Tematy:
    calves
    mesh application
    suture material
    umbilical hernia
    Opis:
    Umbilical hernia is one of the most common problems in young calves. This problem occurs in dairy sector as well as in the local farmers. Present study was conducted to compare outcomes of four different techniques of herniorrhaphy. Twenty four young calves (n=24) were divided in 4 groups (A, B, C, and D) which underwent four different surgical techniques. Group A underwent vicryl plus suture material and pants-over-west technique, Group B underwent mesh application with Dexon suture material by using simple interrupted suture pattern, Group C underwent closed method with Nylon No. 3 suture material by using vertical mattress suture pattern and Group D underwent clamp application method with Silk No. 2 suture material by using simple interrupted suture pattern. The result showed that mesh application method was comparatively better with respect to feed intake, body weight gain and healing time. There was no reoccurrence with non-significant hematological changes (p≤0.05). It is concluded that mesh application method is safer than other three techniques and there are no systemic effects of this surgical intervention on calves’ health.
    Źródło:
    Polish Journal of Veterinary Sciences; 2022, 25, 2; 207-212
    1505-1773
    Pojawia się w:
    Polish Journal of Veterinary Sciences
    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
      Wyświetlanie 1-12 z 12

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