Results 31 to 40 of about 6,341 (202)

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

open access: yesHeliyon
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 ...
Turini L   +5 more
europepmc   +2 more sources

Refractive Index Compensation in Over-Determined Interferometric Systems

open access: yesSensors, 2012
We present an interferometric technique based on a differential interferometry setup for measurement under atmospheric conditions. The key limiting factor in any interferometric dimensional measurement are fluctuations of the refractive index of air ...
Zdeněk Buchta   +5 more
doaj   +1 more source

Plasmonic Sensors Based on Doubly-Deposited Tapered Optical Fibers

open access: yesSensors, 2014
A review of the surface plasmon resonance (SPR) transducers based on tapered fibers that have been developed in the last years is presented. The devices have proved their good performance (specifically, in terms of sensitivity) and their versatility and ...
Agustín González-Cano   +3 more
doaj   +1 more source

Refractometry as an alternative to the biuret method for measuring total serum proteins in Podocnemis expansa (Podocnemididae) and Phrynops geoffroanus (Chelidae) [PDF]

open access: yesActa Amazonica, 2017
Total serum protein is a significant indicator of health condition in animals. The aim of this study was to analyze the precision of the portable refractometer in determining the concentration of total serum proteins in Podocnemis expansa and Phrynops ...
Lourdes Marina Bezerra PESSOA   +8 more
doaj   +2 more sources

Absolute salinity determination by oscillation-type densimetry and refractometry

open access: yesInternational Journal of Metrology and Quality Engineering, 2022
The determination of salinity values from SI traceable densimetry and refractometry measurement results enable SI traceability of the former. In this work, a short study of the metrological compatibility of salinity determinations via these two methods ...
Furtado Andreia   +5 more
doaj   +1 more source

The Short-Term Performances of Two Independent Gas Modulated Refractometers for Pressure Assessments

open access: yesSensors, 2021
Refractometry is a powerful technique for pressure assessments that, due to the recent redefinition of the SI system, also offers a new route to realizing the SI unit of pressure, the Pascal. Gas modulation refractometry (GAMOR) is a methodology that has
Clayton Forssén   +4 more
doaj   +1 more source

Data: Low-coherence and broadband confocal refractometry: Reducing the measurement time

open access: yes, 2023
Data from the paper 'Low-coherence and broadband confocal refractometry: Reducing the measurement time'
Jonathan Hallam (2747698)   +2 more
core   +2 more sources

Optical Window to Polarity of Electrolyte Solutions

open access: yesMolecules, 2023
Medium polarity plays a crucial role in charge-transfer processes and electrochemistry. The added supporting electrolyte in electrochemical setups, essential for attaining the needed electrical conductivity, sets challenges for estimating medium polarity.
Omar O’Mari, Valentine I. Vullev
doaj   +1 more source

Hybrid Microfluidic Platform for Multifactorial Analysis Based on Electrical Impedance, Refractometry, Optical Absorption and Fluorescence

open access: yesMicromachines, 2016
This paper describes the development of a novel microfluidic platform for multifactorial analysis integrating four label-free detection methods: electrical impedance, refractometry, optical absorption and fluorescence.
Fábio M. Pereira   +9 more
doaj   +1 more source

Critical-Angle Differential Refractometry of Lossy Media: A Theoretical Study and Practical Design Issues

open access: yesInstruments, 2019
At a critical angle of incidence, Fresnel reflectance at an interface between a fronttransparent and a rear lossy medium exhibits sensitive dependencies on the complex refractiveindex of the latter.
Spyridon Koutsoumpos   +3 more
doaj   +1 more source

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