Results 11 to 20 of about 164,666 (256)

Dispersion Measurement with Optical Computing Optical Coherence Tomography

open access: yesPhotonics, 2022
We propose a novel technique to measure fiber dispersion without any derivative operation and index measurement. Based on the relationship between the dispersion and the signal in optical computing optical coherence tomography, dispersion can be deduced ...
Wenxin Zhang   +9 more
doaj   +1 more source

One-Way and Two-Way ANOVA: Inferences About a Robust, Heteroscedastic Measure of Effect Size

open access: yesMethodology, 2022
Consider a one-way or two-way ANOVA design. Typically, groups are compared based on some measure of location. The paper suggests alternative methods where measures of location are replaced by a robust measure of effect size that is based in part on a ...
Rand Wilcox
doaj   +1 more source

DECAMETER PULSAR/TRANSIENT SURVEY OF NORTHERN SKY. PARAMETERS OF INDIVIDUAL PULSES

open access: yesRadio Physics and Radio Astronomy, 2017
Purpose: Studying individual burst characteristics recorded by the UTR-2 radio telescope UTR-2 during the Decameter pulsar/transient survey of northern sky, based on the analysis of 70 % of primary data. Design/methodology/approach: Individual pulses,
V. V. Zakharenko   +2 more
doaj   +1 more source

The Measurement and Correction of Atmospheric Dispersion in 4-Meter Telescope With Adaptive Optical System

open access: yesIEEE Photonics Journal, 2023
Atmospheric dispersion is a wavelength-dependent effect that affects astronomical observations performed using ground-based telescopes. The effect of atmospheric dispersion for a 4-meter telescope is analyzed and an atmospheric dispersion corrector (ADC)
Guoqing Gao   +5 more
doaj   +1 more source

Multidistances and Dispersion Measures [PDF]

open access: yes, 2016
Ministerio de Economía, Industria y Competitividad (ECO2012-32178)
Martínez Panero, Miguel   +2 more
openaire   +2 more sources

Histogram lies about distribution shape and Pearson's coefficient of variation lies about relative variability [PDF]

open access: yesTutorials in Quantitative Methods for Psychology, 2022
Histograms and Pearson's coefficient of variation are among the most popular summary statistics. Researchers use histograms to judge the shape of quantitative data distribution by visual inspection.
Silveira, Paulo Sergio Panse   +1 more
doaj   +1 more source

SEARCH FOR LOW-INTENSITY INTERFERENCE AND DISTRIBUTIONS OF TRANSIENT SIGNALS’ CHARACTERISTICS IN THE DATA OF DECAMETER SURVEY OF NORTHERN SKY

open access: yesRadio Physics and Radio Astronomy, 2018
Purpose: The most challenging problem of transient signal research is to prove their cosmic origin. There is no radio telescope at decameter wavelengths, which has an effective area (i.e.
V. V. Zakharenko   +5 more
doaj   +1 more source

Measurement of QT dispersion [PDF]

open access: yesHeart, 1998
In 1985, Mirvis1 reported on a significant spatial variation in QT intervals in normal individuals and patients with acute myocardial infarction. More recently, there has been an increasing interest in what has become known as QT dispersion, which is defined as the difference between the maximum and minimum QT interval of the 12 lead ECG.2 A number of ...
openaire   +2 more sources

ALGORITHMS OF POLARIZATION PARAMETERS DETERMINATION OF PULSAR RADIO EMISSION

open access: yesRadio Physics and Radio Astronomy, 2014
Optimal algorithms for determination of polarization parameters of pulsars elliptically polarized radio emission are considered. These algorithms correspond to a particular type of the recorder that can be used at the receiving point. These recorders can
O. M. Ulyanov   +2 more
doaj   +1 more source

Fuzzy Fireworks Algorithm Based on a Sparks Dispersion Measure

open access: yesAlgorithms, 2017
The main goal of this paper is to improve the performance of the Fireworks Algorithm (FWA). To improve the performance of the FWA we propose three modifications: the first modification is to change the stopping criteria, this is to say, previously, the ...
Juan Barraza   +3 more
doaj   +1 more source

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