Results 21 to 30 of about 5,851,097 (290)

ENO-wavelet transforms for piecewise smooth functions [PDF]

open access: yes, 2002
We have designed an adaptive essentially nonoscillatory (ENO)-wavelet transform for approximating discontinuous functions without oscillations near the discontinuities. Our approach is to apply the main idea from ENO schemes for numerical shock capturing
Chan, Tony F., Zhou, H. M.
core   +2 more sources

Analysis of lnterdependence Between Air Transfer of LC-ltems and Geographical Distances

open access: yesPromet (Zagreb), 2012
Using the data collected by the Universal Postal Union, thepaper studies the con·elation between the delive1y time of ordinarymail items by air and the geographical distance. lt is foundthat there is poor linear co"elation.
Elizabeta Kovač-Striko   +2 more
doaj   +1 more source

Joint processing of measurements in a rangefinder-doppler multistatic radar system

open access: yesНаучный вестник МГТУ ГА, 2020
The article considers the option of organizing joint processing of radar information in a multistatic rangefinder - doppler radar system. The least-squares method is used to obtain analytical expressions for oblique ranges and radial velocities of ...
E. G. Borisov
doaj   +1 more source

Stabilizer Formalism for Operator Quantum Error Correction [PDF]

open access: yes, 2005
Operator quantum error correction is a recently developed theory that provides a generalized framework for active error correction and passive error avoiding schemes.
David Poulin, J. Preskill
core   +2 more sources

PENERAPAN REGRESI QUASI-LIKELIHOOD PADA DATA CACAH (COUNT DATA) YANG MENGALAMI OVERDISPERSI DALAM REGRESI POISSON

open access: yesE-Jurnal Matematika, 2013
Poisson regression can be used to analyze count data, with assuming equidispersion. However, in the case of overdispersion often occur in the count data.
DESAK PUTU PRAMI MEITRIANI   +2 more
doaj   +1 more source

Comparison of Propensity Score Weighting Methods to Remove Selection Bias in Average Treatment Effect Estimates

open access: yesUluslararası Türk Eğitim Bilimleri Dergisi, 2023
In this Monte Carlo simulation study, the performance of six different propensity score methods implemented through weighting cases was investigated: inverse probability of treatment weighting, truncated inverse probability of treatment weighting ...
Sungur Gürel, Walter Lana Leite
doaj   +1 more source

Investigating the Effect of Missing Data on the Experimental Test of Mathematics for the Second-Secondary Students

open access: yesJournal of Educational, Cultural and Psychological Studies, 2022
This study aimed to uncover the effect of the missing values using the Rasch model on an experimental test of mathematics for the second-secondary students.
Aiman Mohammad Freihat
doaj   +1 more source

Wide-Range Digital-Analog Mixed Calibration Technology of a DC Instrument Transformer Test Set

open access: yesIEEE Access, 2021
A DC instrument transformer test set (ITTS), as an error measurement device for DC instrument transformers, needs to be calibrated regularly to ensure its accuracy. Existing calibration technology can only achieve DC ITTS error calibrations within a zero
Haoliang Hu   +6 more
doaj   +1 more source

Variance estimation for complex indicators of poverty and inequality using linearization techniques

open access: yesSurvey Research Methods, 2009
The paper presents the Eurostat experience in calculating measures of precision, including standard errors, confidence intervals and design effect coefficients - the ratio of the variance of a statistic with the actual sample design to the variance of ...
Guillaume Osier
doaj   +1 more source

Improved method for assessing incidence of Citrus tristeza virus in large scale monitoring

open access: yesPhytopathologia Mediterranea, 2015
Citrus tristeza virus (CTV) induces typical quick decline when citrus trees are grafted onto the sour orange. The virus is efficiently vectored by different aphid species. Large scale CTV monitoring and eradication requires a precise sampling and testing
Anna Maria D'ONGHIA   +6 more
doaj   +1 more source

Home - About - Disclaimer - Privacy