Results 81 to 90 of about 3,440 (163)

A pervasive typographical error in an equation for calculating nectar density is likely to have limited consequences

Journal of Pollination Ecology
Analysis of floral nectar reward often involves converting nectar volume to sugar mass. Nectar density depends on nectar sugar concentration, and has been empirically measured.
Hamish Symington, Joris Rockx
doaj   +1 more source

Ein Refractometer

Fresenius' Zeitschrift für analytische Chemie, 1893
n ...
Amagat, E. H., Jean, F., Ellinger, O.
openaire   +1 more source

Critical angle laser refractometer

, 2006
A simple laser refractometer based on the detection of the critical angle for liquids is presented. The calibrated refractometer presents up to 0.000 11 of uncertainty when the refractive index is in the range between 1.300 00 and 1.340 00.
Castrejón-García, R, Morales, A, Castrejón-Pita, JR, ,   +3 more
core  

A critical angle refractometer for heavy water analysis

, 2011
An indigenous design and fabrication of a critical angle refractometer is presented for measuring the percentage purity of heavy water. The paper describes the optical design of a critical angle prism used in the instrument for obtaining achromatism ...
Dinesh V. Udupa, R. P. Shukla, Mantravadi, Murty V., Udupa, Dinesh V., Shukla, R. P., Murty V. Mantravadi   +5 more
core   +1 more source

Compact Dual-Wavelength Optical Fiber Sensor for the Simultaneous Measurement of the Refractive Index and Temperature of Liquid Samples

Chemosensors
This study proposes the development of a dual-wavelength optical fiber sensor (DWOFS) that integrates two optical fiber structures in a multimode transmission line to measure the refractive index and temperature of a liquid concurrently. One structure is
Karla Ivonne Serrano-Arévalo, Erika Rodríguez-Sevilla, Monserrat Alonso-Murias, Héctor Pérez-Aguilar, David Monzón-Hernández   +4 more
doaj   +1 more source

Comparative Analysis of Salinity Readings for Water Quality Monitoring between IoT-Based Sensor Systems and Refractometer

Jurnal Teknologi dan Sistem Informasi
Salinity is among the factors that affect aquaculture water quality, along with pH, temperature, dissolved oxygen (DO), and ammonia. The osmotic pressure is influenced by salinity, which directly affects the aquatic biota.
Hadi Hariyanto, Gilang Ramadhan
doaj   +1 more source

Compact Digital Holography-Based Refractometer for Non-Invasive Characterization of Transparent Media

Optics
This work presents a compact refractometric system based on In-Line Digital Holography (ILDH) for the non-invasive characterization of transparent media, encompassing both liquids and high-refractive-index optical glasses.
Brandon R. Sulvarán-Salmoreno, Diego Torres-Armenta, Dulce Gonzalez-Utrera, David Moreno-Hernández   +3 more
doaj   +1 more source

Pulfrich Refractometer

, 1920
Pulfrich refractometer, accession no. 32; circa 1920 The instrument measures the refractive index of a sample - a measure of the deflection of light as it passes through the sample.
The Rockefeller University
core  

Quantum refractometer

2015 11th Conference on Lasers and Electro-Optics Pacific Rim (CLEO-PR), 2015
Anna Paterova, Dmitry Kalashnikov, Sergei Kulik, Leonid A. Krivitsky   +3 more
openaire   +2 more sources

Using the optical refractometer to manage calf health [PDF]

, 2019
Many research publications and resources are available to help calf raisers use refractometers. This bulletin summarizes current recommendations and references. The Brix refractometer measures sucrose concentrations in liquids like wine and fruit juice.
Lynch, Robert
core