Results 51 to 60 of about 80,615 (316)

A note on the asymptotic distribution of the process capability index C pmk

open access: yes, 2011
Process capability indices have been widely used to evaluate the process performance to the continuous improvement of quality and productivity. The distribution of the estimator of the process capability index C pmk is very complicated and the asymptotic
Wu, Shu-Fei; Liang, Mei-Chu, Wu, Shu-Fei
core   +1 more source

混合指数分布顺序统计量的性质(On properties of order statistics from the mixed exponential distribution)

open access: yesZhejiang Daxue xuebao. Lixue ban, 2011
Let {Xs, 1≤s≤n} be independent and identically distributed, and X1:n, X2:n, …, Xn:n be the corresponding order statistics.
KUANGNeng-hui(匡能晖)
doaj   +1 more source

Asymptotic properties of M-estimator for GARCH(1, 1) model parameters

open access: yesЖурнал Белорусского государственного университета: Математика, информатика, 2020
GARCH(1,  1) model is used for analysis and forecasting of financial and economic time series. In the classical version, the maximum likelihood method is used to estimate the model parameters. However, this method is not convenient for analysis of models
Uladzimir S. Tserakh
doaj   +1 more source

Hybrid Solar Cell/Triboelectric Nanogenerator Based on Stable Two‐Dimensional Covalent Organic Frameworks

open access: yesAdvanced Functional Materials, EarlyView.
This study highlights the integration of stable two‐dimensional covalent organic framework (COF) films as photoactive layers in hybrid nanoenergy devices. The results demonstrate their capacity to generate electricity under both sunny and rainy conditions, showcasing versatility and resilience.
Joab D. Guerrero   +13 more
wiley   +1 more source

Properties of virtual MIMO signal and interference in cooperation cognitive networks

open access: yesTongxin xuebao, 2012
A virtual MIMO scheme based on cooperation of the prim and secondary users was proposed in the wireless cognitive networks.The tight upper and lower bounds about the complimentary cumulative distribution function of the virtual MIMO signal and ...
Xu BAO, Tie-cheng SONG, Lian-feng SHEN
doaj  

Asymptotic Properties of Spearman's Rank Correlation for Variables with Finite Support. [PDF]

open access: yesPLoS ONE, 2016
The asymptotic variance and distribution of Spearman's rank correlation have previously been known only under independence. For variables with finite support, the population version of Spearman's rank correlation has been derived.
Petra Ornstein, Johan Lyhagen
doaj   +1 more source

Heterogeneous queueing system with Markov renewal arrivals and service times dependent on states of arrival process

open access: yesDiscrete and Continuous Models and Applied Computational Science, 2023
In the proposed work, we consider a heterogeneous queueing system with a Markov renewal process and an unlimited number of servers. The service time for requests on the servers is a positive random variable with an exponential probability distribution ...
Evgeny P. Polin   +2 more
doaj   +1 more source

Distributional derivation of an asymptotic expansion [PDF]

open access: yesProceedings of the American Mathematical Society, 1980
An alternative derivation of the asymptotic expansion of multiple Fourier transforms is presented. The present approach is based on the use of distributions. With some modifications, this method can also be applied to other integral transforms with oscillatory kernels such as the Hankel transform.
openaire   +1 more source

Time‐Resolved Magnetization Switching Dynamics Driven by Orbital Torques

open access: yesAdvanced Functional Materials, EarlyView.
Du et al. reveal nanosecond magnetization switching driven by orbital currents using time‐resolved Hall detection. The measurements separate domain nucleation from domain wall propagation and show that Joule heating strongly assists switching by lowering energy barriers.
Ao Du   +4 more
wiley   +1 more source

Asymptotic properties of a goodness-of-fit test based on maximum correlations [PDF]

open access: yes, 2008
We study the efficiency properties of the goodness-of-fit test based on the Qn statistic introduced in Fortiana and Grané (2003) using the concepts of Bahadur asymptotic relative efficiency and Bahadur asymptotic optimality.
Tchirina, Anna V.   +2 more
core  

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