Results 51 to 60 of about 272,931 (273)

Accelerating Luminescence in Nanostructures: Exploring the Physical Limits and Impact of Ultrafast Emission in Nanoscale Materials

open access: yesAdvanced Photonics Research, EarlyView.
This review highlights recent advances in accelerating luminescence in nanostructures through cooperative emission, resonator coupling, and nonlocal light–matter interactions. By unifying concepts such as excitonic superradiance, superfluorescence, and the plasmonic Purcell effect, it reveals physical limits of ultrafast emission and their potential ...
Masaaki Ashida   +3 more
wiley   +1 more source

Angewandte Geostatistik in der landwirtschaftlichen Versuchsplanung

open access: yesAustrian Journal of Statistics, 2016
In der landwirtschaftlichen Versuchsplanung tritt oft auch eine räumliche und/oder eine zeitliche Komponente auf. Bei Feldversuchen mit raumbezogenen Daten kann die Variation zwischen Messungen bei einer bestimmten Distanz mit Hilfe des Semivariogramms ...
Herbert Schwarz
doaj   +1 more source

On the P-value for Members of the Cressie-Read Family of Divergence Statistics

open access: yesAustrian Journal of Statistics, 2023
A few years ago a paper appeared in this Journal that proposed a closed-form approximation of the p-value for Pearson's chi-squared statistic. Extensive empirical and simulation studies were performed and it was shown that the approximation provides ...
Eric Beh, Wang Ting-Wu
doaj   +1 more source

Probability theory and its models

open access: yes, 2008
This paper argues for the status of formal probability theory as a mathematical, rather than a scientific, theory. David Freedman and Philip Stark's concept of model based probabilities is examined and is used as a bridge between the formal theory and ...
Humphreys, Paul
core   +1 more source

Sharp Diamond Needles for Single‐Photon Emission

open access: yesAdvanced Photonics Research, EarlyView.
We study the morphological evolution of single‐crystal diamond needles oxidized at 650–700 °C. Electron microscopy and photoluminescence reveal temperature‐ and time‐dependent sharpening, length reduction, and surface modifications affecting tip properties.
Mariam Quarshie   +9 more
wiley   +1 more source

Extracting Information from Interval Data Using Symbolic Principal Component Analysis

open access: yesAustrian Journal of Statistics, 2017
We introduce generic definitions of symbolic variance and covariance for random interval-valued variables, that lead to a unified and insightful interpretation of four known symbolic principal component estimation methods: CPCA, VPCA, CIPCA, and ...
M. R. Oliveira   +4 more
doaj   +1 more source

Analysis of Count Time Series: A Bayesian GARMA(p, q) Approach

open access: yesAustrian Journal of Statistics, 2023
Extensions of the Autoregressive Moving Average, ARMA(p, q), class for modeling non-Gaussian time series have been proposed in the literature in recent years, being applied in phenomena such as counts and rates.
Luiz Otávio de Oliveira Pala   +2 more
doaj   +1 more source

Sparse logistic principal components analysis for binary data [PDF]

open access: yes, 2010
We develop a new principal components analysis (PCA) type dimension reduction method for binary data. Different from the standard PCA which is defined on the observed data, the proposed PCA is defined on the logit transform of the success probabilities ...
Hu, Jianhua   +2 more
core   +3 more sources

Unilateral Ankle‐Foot Exoneuromusculoskeleton with Balance‐Sensing Feedback for Self‐Help Telerehabilitation after Stroke

open access: yesAdvanced Robotics Research, EarlyView.
This study introduces a hybrid robot that integrates mechanical assistance by musculoskeletons (i.e., soft pneumatic muscle with rigid exoskeletal extensions), neuromuscular electrical stimulation, and vibrotactile feedback in a lightweight wearable mechatronic complex applicable to the paretic ankle–foot poststroke for gait restoration. The system can
Fuqiang Ye   +16 more
wiley   +1 more source

Industrial Statistics Revisited: From Footnotes to Meta-Information Management

open access: yesAustrian Journal of Statistics, 2016
UNIDO maintains a long tradition in the compilation of international statistics on industrial production and, particularly, has developed a suite of tools and techniques for improving third-party data, mainly supplied directly or indirectly by National ...
Karl A. Froeschl   +2 more
doaj   +1 more source

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