Results 51 to 60 of about 836,502 (333)

Probabilistic Solar Forecasting Using Quantile Regression Models

open access: yesEnergies, 2017
In this work, we assess the performance of three probabilistic models for intra-day solar forecasting. More precisely, a linear quantile regression method is used to build three models for generating 1 h–6 h-ahead probabilistic forecasts. Our approach is
Philippe Lauret   +2 more
doaj   +1 more source

Effect of Y2O3 on properties of iron-based diamond tools

open access: yesJin'gangshi yu moliao moju gongcheng, 2022
The effects of hot pressing pressure, sintering temperature and Y2O3 content on the hardness, the density, the flexural strength and the fracture morphology of the iron-based matrix were studied by orthogonal test, and the better sintering process ...
Lu WEN   +4 more
doaj   +1 more source

Video Distance Measurement Technique Using Least Squares Based Sharpness Cost Function

open access: yesMathematics, 2022
A wide range of precision applications requires video measuring systems that achieve a large number of successive measurements and deliver fast results. Their efficiency is essentially given by the technical performances of the used equipment and by the ...
Elena Serea   +3 more
doaj   +1 more source

Multidimensional Psychological Evaluation of Air Conditioner Sounds and Prediction via Correlation Parameters

open access: yesFrontiers in Built Environment, 2021
Air conditioners are regarded as a major source of noise in built environments. Although noise control technology has reduced the sound produced by air conditioners to a comparatively low level, some people may still feel that certain aspects of the ...
Yoshiharu Soeta, Ei Onogawa
doaj   +1 more source

Effect of different levels of sharpness processing filter on the measurement accuracy of endodontic file length

open access: yesDental Hypotheses, 2016
Introduction: The present study was undertaken to evaluate the effect of different levels of sharpness processing filter on the accuracy of endodontic file length determination using digital periapical radiography.
Nastaran Farhadi   +2 more
doaj   +1 more source

Analysis of polymerization time on abrasive wear of dental resins

open access: yesMaterials Research, 2010
An evaluation was made of the abrasive wear of six composite thermofixed dental resins subjected to different polymerization times. The method of evaluation was based on sharpness measurements to quantify the abrasive wear resistance of the resins.
Eduardo Carlos Bianchi   +4 more
doaj   +1 more source

Computational Complexity versus Statistical Performance on Sparse Recovery Problems [PDF]

open access: yes, 2018
We show that several classical quantities controlling compressed sensing performance directly match classical parameters controlling algorithmic complexity.
Boumal, Nicolas   +2 more
core   +5 more sources

Stay sharp

open access: yes, 2014
QC ...
Vogel, Kjerstin   +2 more
openaire   +4 more sources

A ghost-cell immersed boundary method for unified simulations of flow over finite- and zero-thickness moving bodies at large CFL numbers

open access: yesEngineering Applications of Computational Fluid Mechanics, 2021
A ghost-cell immersed boundary method for unified simulations of flow over finite- and zero-thickness moving bodies at large Courant-Friedrichs-Lewy (CFL) numbers is presented.
Seungpyo Hong   +3 more
doaj   +1 more source

Application of Psychoacoustic Metrics in the Noise Assessment of Geared Drives

open access: yesWorld Electric Vehicle Journal
Psychoacoustic metrics offer a valuable complement to traditional noise evaluation methods for gear transmissions, as they account for the human perception of sound quality rather than relying solely on physical measurements.
Krisztian Horvath
doaj   +1 more source

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