Results 141 to 150 of about 4,555,115 (280)

Precise BER Formulas for Asynchronous QPSK-Modulated DS-CDMA Systems Using Random Quaternary Spreading Over Rayleigh Channels

open access: yes, 2008
Precise bit-error-ratio (BER) analysis of an asynchronous QPSK-modulated direct-sequence code-division multiple-access system using random quaternary spreading sequences for transmission over Rayleigh channels is performed based on the characteristic ...
Liu, X, Hanzo, L
core  

Qualitative Analysis of Biogas by Raman Spectroscopy: Effect of Pressure on Major Components

open access: yesJournal of Raman Spectroscopy, EarlyView.
Raman spectra of major and selected minor biogas components were studied under pressures up to 100 bar. Pressure‐induced shifts and band broadening were quantified for methane, carbon dioxide, and nitrogen, while Raman spectra of ammonia and hydrogen sulfide are presented in the context of biogas quality monitoring.
Dominik Tománek   +2 more
wiley   +1 more source

Properties of Generalized Rayleigh Distributions

open access: yesThe Annals of Mathematical Statistics, 1963
Blumenson, L. E., Miller, K. S.
openaire   +3 more sources

Rapid Quantification of Fatty Acids in Fish Eggs Through Raman Spectroscopy

open access: yesJournal of Raman Spectroscopy, EarlyView.
Omega‐3 fatty acids (FAs) are important indicators for egg quality. This study uses Raman spectroscopy coupled with chemometrics to develop a rapid and in situ method for predicting FA composition in fish eggs. These findings offer a practical and cost‐effective method for assessing egg FA profiles in aquaculture hatcheries.
Benjamin Panitz   +8 more
wiley   +1 more source

Illuminating Streptomyces: Raman Spectroscopy for Antibiotic Detection and Monitoring

open access: yesJournal of Raman Spectroscopy, EarlyView.
Raman spectroscopy provides a non‐destructive, label‐free approach for studying the chemical diversity of Streptomyces. This review presents its application from detection to chemical characterization of secondary metabolites and monitoring of biosynthetic processes.
Adéla Mikulová   +6 more
wiley   +1 more source

Development of mango‐flavored soy‐based yogurt: Assessment of physicochemical properties and quality attributes

open access: yesJSFA reports, EarlyView.
Abstract Background Yogurt is a widely consumed fermented dairy product valued for its nutritional quality, functional benefits, and formulation flexibility. Rising consumer interest in healthier and diversified foods has increased attention toward composite plant–dairy yogurts enriched with fruits and legumes.
Richard Osae   +9 more
wiley   +1 more source

Three‐Dimensional Optical Characterization of Magnetostrictive Deformation in Magnomechanical Systems

open access: yesLaser &Photonics Reviews, EarlyView.
An optical approach is proposed for real‐time and high‐precision detection of the magnetostrictive deformation of an yttrium‐iron‐garnet sphere in three dimensions, based on the deformation induced spatial high‐order modes of the scattered field, postselection, and balanced homodyne detection.
Xiaomin Liu   +5 more
wiley   +1 more source

Ambient‐Light‐Activated Rewritable Optical Patterning in Transparent Long‐Afterglow Garnet Ceramics

open access: yesLaser &Photonics Reviews, EarlyView.
This work demonstrates sunlight‐activated rewritable optical information storage in transparent long‐afterglow Y3Al2Ga3O12:Ce (YAGG:Ce) garnet ceramics fabricated via solid‐state sintering with tetraethyl orthosilicate (TEOS) as a sintering aid. By integrating ambient‐light operability, reversibility, and high optical clarity in a robust ceramic host ...
Luyang Hua   +11 more
wiley   +1 more source

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