Precise Determination of Percent Cure of Epoxide Polymers and Composites via Fiber-Optic Raman Spectroscopy and Multivariate Analysis

1997 ◽  
Vol 51 (2) ◽  
pp. 247-252 ◽  
Author(s):  
Jeffrey F. Aust ◽  
Karl S. Booksh ◽  
Christopher M. Stellman ◽  
Richard S. Parnas ◽  
Michael L. Myrick
Keyword(s):  
Raman Spectroscopy ◽  
Multivariate Analysis ◽  
Real Time ◽  
Fiber Optic ◽  
Precise Determination ◽  
Probe Design ◽  
Epoxide Polymers ◽  
Time Determination

A method for real-time determination of the percent cure of epoxies via in situ fiber-optic Raman spectroscopy has been developed. This method utilizes a probe design developed for real-time monitoring of polymer curing and multivariate analysis to interpret the data and determine percent cure. This method was demonstrated to be reliable to ±0.54% of cure in laboratory samples over a 50–99% cure range. A preliminary study measuring cure percentage in an industrial, glass-reinforced composite has been shown to be reliable to ±0.82% in the 40–90% cure range.

Real-time in-situ determination of free Cu(II) at picomolar levels in sea water using a fluorescence lifetime-based fiber optic biosensor

2002 ◽  
Author(s):  
Richard B. Thompson ◽  
Hui-Hui Zeng ◽  
Carol A. Fierke ◽  
Gary Fones ◽  
James W. Moffett
Keyword(s):  
Real Time ◽  
Fluorescence Lifetime ◽  
Fiber Optic ◽  
Sea Water

In Situ Microscopy for Real-time Determination of Single-cell Morphology in Bioprocesses

10.3791/57823 ◽  
2019 ◽  
Author(s):  
Anna Maria Marbà-Ardébol ◽  
Joern Emmerich ◽  
Michael Muthig ◽  
Peter Neubauer ◽  
Stefan Junne
Keyword(s):  
Single Cell ◽  
Real Time ◽  
Cell Morphology ◽  
Time Determination

Real-Time Determination of Picomolar Free Cu(II) in Seawater Using a Fluorescence-Based Fiber Optic Biosensor

2003 ◽  
Vol 75 (24) ◽  
pp. 6807-6812 ◽  
Author(s):  
Hui-Hui Zeng ◽  
Richard B. Thompson ◽  
Badri P. Maliwal ◽  
Gary R. Fones ◽  
James W. Moffett ◽  
...  
Keyword(s):  
Real Time ◽  
Fiber Optic ◽  
Time Determination

scholarly journals Fiber-optic probe for noninvasive real-time determination of tissue optical properties at multiple wavelengths

2001 ◽  
Vol 40 (7) ◽  
pp. 1155 ◽  
Author(s):  
Jan S. Dam ◽  
Carsten B. Pedersen ◽  
Torben Dalgaard ◽  
Paul Erik Fabricius ◽  
Prakasa Aruna ◽  
...  
Keyword(s):  
Optical Properties ◽  
Real Time ◽  
Fiber Optic ◽  
Fiber Optic Probe ◽  
Tissue Optical Properties ◽  
Multiple Wavelengths ◽  
Time Determination ◽  
Optic Probe

scholarly journals Analysis of subcutaneous swine fat via deep Raman spectroscopy using a fiber-optic probe

The Analyst ◽  
2020 ◽  
Vol 145 (13) ◽  
pp. 4421-4426 ◽  
Author(s):  
Jeon Woong Kang ◽  
Soo Yeong Lim ◽  
Luis H. Galindo ◽  
Hongman Yoon ◽  
Ramachandra R. Dasari ◽  
...  
Keyword(s):  
Raman Spectroscopy ◽  
Real Time ◽  
Meat Quality ◽  
Fiber Optic ◽  
Fat Content ◽  
Fiber Optic Probe ◽  
Quality Grading ◽  
Optic Probe

Since the fat content of pork is a deciding factor in meat quality grading, the use of a noninvasive subcutaneous probe for real-time in situ monitoring of the fat components is of importance to vendors and other interested parties.

scholarly journals In situ and real time determination of metallic and semiconducting single-walled carbon nanotubes in suspension via dielectrophoresis

2006 ◽  
Vol 88 (24) ◽  
pp. 243109 ◽  
Author(s):  
Natacha Mureau ◽  
Ernest Mendoza ◽  
S. R. P. Silva ◽  
Kai F. Hoettges ◽  
Michael P. Hughes
Keyword(s):  
Carbon Nanotubes ◽  
Real Time ◽  
Single Walled Carbon Nanotubes ◽  
Single Walled Carbon ◽  
Time Determination ◽  
Walled Carbon Nanotubes
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