Results 41 to 50 of about 1,039,315 (343)

Convergence of Monte Carlo simulations involving the mean-reverting square root process [PDF]

open access: yes, 2005
The mean-reverting square root process is a stochastic differential equation (SDE) that has found considerable use as a model for volatility, interest rate, and other financial quantities.
Higham, D.J., Mao, X.
core   +2 more sources

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

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

The anti‐CRISPR protein AcrIE8.1 inhibits the type I‐E CRISPR‐Cas system by directly binding to the Cascade subunit Cas11

open access: yesFEBS Letters, EarlyView.
In this study, we present the structure of AcrIE8.1, a previously uncharacterized anti‐CRISPR protein that inhibits the type I‐E CRISPR‐Cas system. Through a combination of structural and biochemical analyses, we demonstrate that AcrIE8.1 directly binds to the Cas11 subunit of the Cascade complex to inhibit the CRISPR‐Cas system.
Young Woo Kang, Hyun Ho Park
wiley   +1 more source

DENSE IMAGE MATCHING FOR MARS EXPRESS HRSC IMAGERY BASED ON PRECISE POINT PREDICTION METHOD [PDF]

open access: yesThe International Archives of the Photogrammetry, Remote Sensing and Spatial Information Sciences, 2016
Currently, Mars Express HRSC imagery is an essential data source to derive high accuracy Mars topographic data. In view of the characteristics of Martian surface satellite imagery, a dense image matching scheme for HRSC imagery based on precise point ...
X. Geng   +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

Structural insights into lacto‐N‐biose I recognition by a family 32 carbohydrate‐binding module from Bifidobacterium bifidum

open access: yesFEBS Letters, EarlyView.
Bifidobacterium bifidum establishes symbiosis with infants by metabolizing lacto‐N‐biose I (LNB) from human milk oligosaccharides (HMOs). The extracellular multidomain enzyme LnbB drives this process, releasing LNB via its catalytic glycoside hydrolase family 20 (GH20) lacto‐N‐biosidase domain.
Xinzhe Zhang   +5 more
wiley   +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

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

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

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