Results 21 to 30 of about 4,307 (179)
Plasmonic Sensors Based on Doubly-Deposited Tapered Optical Fibers
Sensors, 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
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Refractometry as an alternative to the biuret method for measuring total serum proteins in Podocnemis expansa (Podocnemididae) and Phrynops geoffroanus (Chelidae) [PDF]
Acta 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
International 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
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The Short-Term Performances of Two Independent Gas Modulated Refractometers for Pressure Assessments
Sensors, 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
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Optical Window to Polarity of Electrolyte Solutions
Molecules, 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
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Micromachines, 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
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Instruments, 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
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Modified prism methods for measuring the refractive index of solid and liquid substances
Компьютерная оптика, 2023 Methods for measuring the refractive index of optically transparent dielectric materials are considered. Modified methods based on the methods of minimum deviation and constant deviation are proposed and allow determining the refractive index of ...
A.I. Yurin, G.N. Vishnyakov, V.L. Minaev
doaj +1 more source
Suppression of Air Refractive Index Variations in High-Resolution Interferometry
Sensors, 2011 The influence of the refractive index of air has proven to be a major problem on the road to improvement of the uncertainty in interferometric displacement measurements.
Zdeněk Buchta +4 more
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Antibody kinetics against tetanus toxoid before and after primary vaccination of foals
Equine Veterinary Journal, EarlyView.Abstract Background Vaccination recommendations for foals against Clostridium tetani vary. Available studies assessing foal immune responses, maternal antibody interference, or individual variation often used small foal numbers. Objectives To quantify antibody responses after tetanus vaccination in foals and explore associations with passively ...
Katharina Olbrich +2 more
wiley +1 more source