Results 1 to 10 of about 10,231 (197)

Pleural fluid refractometry [PDF]

Lung India
René A. Flores-Franco, David R. Flores-Aguilar   +1 more
doaj   +4 more sources

Refractometry of organosilica microspheres [PDF]

Applied Optics, 2007
The refractive index of novel organosilica (nano/micro)material is determined using two methods. The first method is based on analysis of optical extinction efficiency of organosilica beads versus wavelength, which is obtained by a standard laboratory ...
Alexandrov, Alupoaei, Ashkin, Boustany, Callahan, Chen, Chýlek, Chýlek, Cohen, Colpin, Garcia-Santamaria, Guimaraes, Lang, Liu, Ma, Malitson, Mattley, Miller, Miller, Nieminen, Nieminen, Scholz, van Blaaderen   +22 more
core   +6 more sources

Highly Sensitive Measurement of the Refractive Index of Mesoporous Hollow Silica Microcapsules Using Whispering Gallery Mode Resonances [PDF]

Sensors
Monodisperse mesoporous hollow silica microcapsules present unique opportunities for advanced optical characterization due to their tunable nanostructure, high porosity and easy functionalization.
Qisheng Xu, Sadok Kouz, Aatir Khan, Naheed Hossain, Nizar Bchellaoui, Abdel I. El Abed   +5 more
doaj   +2 more sources

Immunity transfer in mule foals fed with good IgG quality colostrum [PDF]

Heliyon
While the passive transfer of immunity in horse and donkey foals has been extensively studied, there is limited information for mule foals. Immunoglobulin type G (IgG) and serum total protein concentration (TP) were assessed at different sampling times ...
Luca Turini, Bindi Francesca, Vernaccini Matilde, Bonelli Francesca, Meucci Valentina, Sgorbini Micaela   +5 more
doaj   +2 more sources

Fibre Refractometry for Minimally Invasive Sugar Content Measurements within Produce [PDF]

Sensors
A minimally invasive needle refractometer is presented for sugar content measurements within produce. A passive sampling cap structure was developed that improves the reliability of the device by avoiding interfering back reflections from the flesh of ...
Mark A. Zentile, Peter Offermans, David Young, Xu U. Zhang   +3 more
doaj   +2 more sources

Metamaterial near-field sensor for deep-subwavelength thickness measurements and sensitive refractometry in the terahertz frequency range

Applied Physics Letters, 2012
We present a metamaterial-based terahertz (THz) sensor for thickness measurements of subwavelength-thin materials and refractometry of liquids and liquid mixtures.
Jens Neu, René Beigang, Marco Rahm
exaly   +3 more sources

Prediction of Ethanol Content and Total Extract Using Densimetry and Refractometry

Beverages, 2023
This study investigated the interrelationships between the parameters of density, optical refraction, the volume fraction of ethanol and the total extract, using model solutions and samples of wine materials.
Joel B Johnson, Anatoliy Kazak, Elvira Borisova   +2 more
exaly   +3 more sources

Splitting of resonances in a curved optical fiber-based Fabry-Perot resonator [PDF]

Компьютерная оптика, 2021
In this work, the splitting of resonance lines in a Fabry-Perot resonator formed by a section of a standard curved single-mode fiber with metal-coated ends is investigated numerically and experimentally.
A.V. Dyshlyuk, U.A. Eryusheva, O.B. Vitirk   +2 more
doaj   +1 more source

Vergence Formula for Estimating the Refractive Status of Aphakic Eyes in Pediatric Patients

Frontiers in Medicine, 2022
Clinical RelevanceA vergence formula may provide a simple and reliable calculation of the refractive status of aphakic eyes.BackgroundMeasuring the refractive error of pediatric eyes with aphakia is difficult.
Linlu Tian, Peiquan Zhao, Huang Zhu, Xiaoli Kang, Yan Wei, Luya Chen, Jing Li   +6 more
doaj   +1 more source

Critical Angle Refractometry for Lossy Media with a Priori Known Extinction Coefficient

Physics, 2021
Critical angle refractometry is an established technique for determining the refractive index of liquids and solids. For transparent samples, the critical angle refractometry precision is limited by incidence angle resolution.
Spyridon Koutsoumpos, Panagiotis Giannios, Konstantinos Moutzouris   +2 more
doaj   +1 more source