Results 51 to 60 of about 3,440 (163)

Composite material process monitoring using optical fibre grating sensors [PDF]

, 2008
In this thesis a long period grating (LPG) based sensor is investigated as a possible alternative to current process monitoring sensors used in the manufacture of composites to monitor cure. An LPG is demonstrated as a means of monitoring the cure of a
Buggy, Stephen J.
core  

The Optoelectronic Fresnel Refractometer

, 2003
An optoelectronic refractometer has been fabricated in which the intensity of light reflected from the base surface of a prism interfacing the ambient is measured to determine its refractive index.
Kumar, Mahendra, Shukla, R, Srivastava, Anchal, Srivastava, Atul, Bali, L   +4 more
core   +1 more source

Comparative estimation of nitrogen in urea and its derivative products using TKN, CHNS and hand-held refractometer

Scientific Reports, 2022
In this paper, a comparative analysis between the hand-held refractometer and other methods (TKN and CHNS) was accomplished for the estimation of nitrogen percentage (N%) in urea, nano urea fertilizer, and diesel exhaust fluid (DEF) solution. In order to
Vijendra Singh Bhati, Ramesh Raliya
doaj   +1 more source

Investigation of brix refractometry for estimating bovine colostrum immunoglobulin G concentration

Frontiers in Veterinary Science, 2023
Many dairy operations uses a Brix refractometer to assess the quality of first-milking colostrum. This study investigated whether a digital Brix refractometer could be used in a model to predict colostrum IgG concentration and whether more than one %Brix
Donald Sockett, Ryan M. Breuer, Ryan M. Breuer, Lindsey W. Smith, Nicholas S. Keuler, Thomas Earleywine   +5 more
doaj   +1 more source

Circular comparison of conventional pressure standards using a transportable optical refractometer: preparation and transportation [PDF]

, 2022
Using a transportable Fabry-Pérot cavity refractometer, a circular comparison of existing primary standards at several national metrology institutes is currently underway.
O. Axner, Zakrisson, Johan,, D. Szabo, Rubin, T.,, Bentouati, D.,, Axner, Ove,, Bock, T.,, D. Bentouati, A. Kussicke, Zelan, M.,, Mari, D.,, M. Zelan, E. Amer, Szabo, D.,, Silander, Isak,, S. Pasqualin, Forssén, Clayton,, T. Rubin, C. Forssén, Kussicke, A.,, D. Mari, Amer, E.,, I. Silander, Z. Silvestri, Pasqualin, S.,, Silvestri, Z.,, T. Bock, J. Zakrisson   +27 more
core   +1 more source

Refractometer Image Processing Accelerator

, 2022
There has been a clear increasing trend of production demand in manufacturing industries, which has facilitated the adoption of in-line process instrumentation.
Geizans, Niklavs
core  

Optofluidic integrated Bragg grating chemical sensor: Utilising a sodium-elective receptor surface to enhance detection

Planar waveguides can be written with a UV-laser into photosensitised silica to produce a wide range of optical devices. Careful modulation of two interfering beams allows Bragg gratings to be directly written into the channel.
Grossel, M.C., Smith, P.G.R., Gates, J.C., Parker, R.M.   +3 more
core   +1 more source

Development of a multifunctional optical diagnostic system at the Shenguang-II upgrade laser facility

High Power Laser Science and Engineering
A multifunctional optical diagnostic system, which includes an interferometer, a refractometer and a multi-frame shadowgraph, has been developed at the Shenguang-II upgrade laser facility to characterize underdense plasmas in experiments of the double ...
Xinyan Li, Peng Yuan, Fan Gao, Yifan Liu, Lixuan Wu, Xiaohui Yuan, Zhe Zhang, Jie Zhang, Jun Li, Jian Zheng   +9 more
doaj   +1 more source

The effect of failed transfer of passive immunity and agammaglobulinemia on the occurrence of preweaning diarrhea, pneumonia, and mortality in Holstein calves

Spanish Journal of Agricultural Research
Aim of study: To evaluate the effect of failed transfer of passive immunity (FPI; Brix% < 8, equivalent to serum immunoglobulin G
Mely T. Olivera, Jesús Mellado, José E. García, Juan A. Encina, Perpetuo Álvarez, Ulises Macías-Cruz, Leonel Avendaño, Miguel Mellado   +7 more
doaj   +1 more source

Clinical utility of urine specific gravity, electrical conductivity, and color as on‐farm methods for evaluating urine concentration in dairy cattle

Journal of Veterinary Internal Medicine, 2019
Background Urine concentration (UC) provides clinically useful information concerning hydration status and renal function of animals. Objectives To characterize the clinical performance of urine specific gravity measured by optical refractometry (USG‐R ...
Ameer A. Megahed, Walter Grünberg, Peter D. Constable   +2 more
doaj   +1 more source