Results 41 to 50 of about 6,341 (202)

Modified prism methods for measuring the refractive index of solid and liquid substances

open access: yesКомпьютерная 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

open access: yesSensors, 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
doaj   +1 more source

A VIRTUAL SIMULATOR AS A TOOL FOR TEACHING REFRACTOMETRY [PDF]

open access: yes, 2017
Significance: Several educational technological innovations are developed with the purpose of contributing to the training of future optometrists and ophthalmologists. However, very little is available for teaching refractometry.
Paulo Schor   +5 more
core   +1 more source

Spectral Domain Low- Coherence Interferometry for On-line Surface Inspection [PDF]

open access: yes, 2013
We present an on-line surface measurement technique based on spectral domain low-coherence interferometry (SD-LCI), which can obtain a one dimensional surface profile with just one shot.
Gao, F.   +5 more
core   +1 more source

Fabry-Perot-cavity-based refractometry without influence of mirror penetration depth

open access: yes, 2021
Assessments of refractivity in a Fabry-Perot (FP) cavity by refractometry often encompass a step in which the penetration depth of the light into the mirrors is estimated to correct for the fraction of the cavity length into which no gas can penetrate ...
O. Axner   +17 more
core   +1 more source

Hollow Mie resonators based on toroidal magnetic dipole mode with enhanced sensitivity in refractometric sensing

open access: yesApplied Physics Express
We propose a refractometric sensor based on hollow silicon Mie resonators of a toroidal magnetic dipole mode. This mode has a pair of antiparallel electric dipoles perpendicular to the silica substrate; thus, the radiation of the mode is suppressed ...
Rongyang Xu, Junichi Takahara
doaj   +1 more source

Convenient Monitoring Of Brewery Fermentation Course By Refractometry.

open access: yesKvasný průmysl, 2009
The course of wort fermentation is most often monitored by measuring density by immersion saccharometer or digital densitometer; other methods include classical analysis or automatic analyzers.
Jan ŠAVEL   +3 more
doaj   +1 more source

Hypocortisolaemia with gastrointestinal haemorrhage in a young cat

open access: yesVeterinary Record Case Reports, Volume 14, Issue 4, November 2026.
Abstract An 8‐month‐old, female, spayed domestic shorthair presented with a 1‐week history of lethargy and anorexia. On admission, the cat had severe hypoglycaemia, and hypovolaemic and distributive shock were suspected. Mucosal defects identified by ultrasonography were suggestive of gastrointestinal ulceration.
Victoria J. Skinner   +2 more
wiley   +1 more source

On the Refractometry of Prisms [PDF]

open access: yesProceedings of the Physical Society of London, 1920
In this Paper a generalised formula for the refraction of light through a prism is obtained, and the particular cases pertaining to practical methods of refractometry deduced from it. The sensitivity of various methods for various prism angles and refractive indices is shown in a series of curves, as is also the liability to error due to errors in ...
openaire   +1 more source

Reduced Longwave Absorption of Magnesium Sulfate Aerosol as an Alternative to Sulfuric Acid for Stratospheric Aerosol Injection

open access: yesGeophysical Research Letters, Volume 53, Issue 19, 16 October 2026.
Abstract Aqueous sulfuric acid is the benchmark sulfate aerosol for stratospheric aerosol injection (SAI), but H2SO4 ${\mathrm{H}}_{2}{\text{SO}}_{4}$/H2 ${\mathrm{H}}_{2}$O aerosol absorbs strongly in the infrared, producing longwave warming that significantly offsets its shortwave cooling. Here, we evaluate magnesium sulfate (MgSO4 ${\text{MgSO}}_{4}$
A. Odelskii   +6 more
wiley   +1 more source

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