Results 41 to 50 of about 1,045,606 (193)

Forecast Assessment of CMA-GFS on the Meteorological Elements in the Northeast Hemisphere

open access: yesGaoyuan qixiang, 2023
Based on the daily forecast data initialized at 20:00 (Beijing time) of the CMA global forecast system (CMA-GFS) during the period from October, 2019 to December, 2020, the forecasting quality of the upper air meteorological elements in the Northeast ...
Chunjuan QI, Liujie PAN
doaj   +1 more source

Assessment of clear and cloudy sky parameterizations for daily downwelling longwave radiation over different land surfaces in Florida, USA [PDF]

open access: yes, 2008
Clear sky downwelling longwave radiation (Rldc) and cloudy sky downwelling longwave radiation (Rld) formulas were tested across eleven sites in Florida.
Choi, Minha   +2 more
core   +1 more source

Determination of extra virgin olive oil in quaternary mixture using FTIR spectroscopy and multivariate calibration. [PDF]

open access: yes, 2011
The purpose of this study was to optimize Fourier transform infrared (FTIR) spectroscopy in combination with multivariate calibrations (partial least square and principle component regression) for determination of extra virgin olive oil (EVOO) in ...
Abdul Rohman,, Che Man, Yaakob
core   +2 more sources

Rapid determination of tannin in Danshen and Guanxinning injections using UV spectrophotometry for quality control [PDF]

open access: yesJournal of Innovative Optical Health Sciences, 2018
A technique for the determination of tannin content in traditional Chinese medicine injections (TCMI) was developed based on ultraviolet (UV) spectroscopy.
Hongxia Huang   +5 more
doaj   +1 more source

Distributed Quantum Sensing Using Continuous-Variable Multipartite Entanglement

open access: yes, 2018
Distributed quantum sensing uses quantum correlations between multiple sensors to enhance the measurement of unknown parameters beyond the limits of unentangled systems. We describe a sensing scheme that uses continuous-variable multipartite entanglement
Shapiro, Jeffrey H.   +2 more
core   +1 more source

An Analytical Derivation of the Signal-in-Space Root-Mean-Square User Range Error

open access: yesNavigation
The concept of the signal-in-space (SIS) root-mean-square (RMS) user range error (URE) is used to evaluate the performance of multiple global navigation satellite systems (GNSSs); however, a complete analytical derivation has not been published.
Brent Renfro   +5 more
doaj   +1 more source

Models of criterion evaluation of the image processing systems effectiveness

open access: yesЗбірник наукових праць Державного університету інфраструктури та технологій: серія "Транспортні системи і технології", 2023
The criteria used to evaluate the effectiveness of image processing systems are investigated in the article. The requirements for performance criteria are analyzed.
O. Gertsiy
doaj  

Improving the Near-Surface Wind Forecast around the Turpan Basin of the Northwest China by Using the WRF_TopoWind Model

open access: yesAtmosphere, 2021
Wind energy is a type of renewable and clean energy which has attracted more and more attention all over the world. The Northwest China is a region with the most abundant wind energy not only in China, but also in the whole world.
Hui Ma   +4 more
doaj   +1 more source

A weighted reduced basis method for parabolic PDEs with random data

open access: yes, 2017
This work considers a weighted POD-greedy method to estimate statistical outputs parabolic PDE problems with parametrized random data. The key idea of weighted reduced basis methods is to weight the parameter-dependent error estimate according to a ...
B Haasdonk   +15 more
core   +1 more source

Fuzzification of quantitative data to predict tumour size of colorectal cancer [PDF]

open access: yes, 2017
Regression analysis has become more popular among researchers as a standard tool in analyzing data. This paper used fuzzy linear regression model (FLRM) to predict tumour size of colorectal cancer (CRC) data in Malaysia.
Amir Hamzah, Nor Shamsidah   +5 more
core   +1 more source

Home - About - Disclaimer - Privacy