Real-time temperature and photon transmission measurements for monitoring phase separation during the formation of poly(N-isopropylacrylamide) gels

2002 ◽  
Vol 86 (14) ◽  
pp. 3589-3595 ◽  
Author(s):  
Selim Kara ◽  
Oguz Okay ◽  
Onder Pekcan
Keyword(s):  
Phase Separation ◽  
Real Time ◽  
Transmission Measurements ◽  
Monitoring Phase

In situ photon transmission technique for monitoring phase separation in real time during gelation

2000 ◽  
Vol 45 (3) ◽  
pp. 281-285 ◽  
Author(s):  
Selim Kara ◽  
Oguz Okay ◽  
Önder Pekcan
Keyword(s):  
Phase Separation ◽  
Real Time ◽  
Transmission Technique ◽  
Monitoring Phase

scholarly journals A real-time impedance-sensing chip for the detection of emulsion phase separation

2013 ◽  
Vol 34 (12) ◽  
pp. NA-NA ◽  
Author(s):  
Yung-Sheng Lin ◽  
Wei-Lung Chou ◽  
Chih-Hui Yang ◽  
Keng-Shiang Huang ◽  
Eng-Chi Wang ◽  
...  
Keyword(s):  
Phase Separation ◽  
Real Time ◽  
Impedance Sensing ◽  
Emulsion Phase

Real-Time Study of Protein Phase Separation with Spatiotemporal Analysis of Single-Nanoparticle Trajectories

ACS Nano ◽  
2020 ◽  
Author(s):  
Qi Pan ◽  
Daxiao Sun ◽  
Jianfeng Xue ◽  
Jie Hao ◽  
Hansen Zhao ◽  
...  
Keyword(s):  
Phase Separation ◽  
Real Time ◽  
Spatiotemporal Analysis ◽  
Time Study ◽  
Single Nanoparticle

Morphology of a Functional POSS/Bismaleimide Nanocomposite and its Monitoring Phase Separation with a Thermoplastic Blend

2011 ◽  
Vol 266 ◽  
pp. 166-170
Author(s):  
Xiao Lan Hu ◽  
Rong Lu Yu ◽  
Gang Liu ◽  
Xiao Su Yi
Keyword(s):  
Phase Separation ◽  
Optical Microscope ◽  
Separation Process ◽  
Polyether Ether Ketone ◽  
Phase Separation Process ◽  
Potential Matrix ◽  
Ether Ketone ◽  
Oligomeric Silsesquioxane ◽  
Similar Phase ◽  
Monitoring Phase

A functional polyhedral oligomeric silsesquioxane (POSS) with eight vinyl groups was used to fabricate a POSS/bismaleimide (BMI) nanocomposite as a potential matrix for RTM processing, and its blend with a thermoplastic polyether-ether ketone (PEK-C) was prepared. A self-designed optical microscope with a hot stage has been performed to monitor phase separation process of the thermoplastic-thermoset blend. The phase separation and final morphology of POSS/PEK-C/BMI system were characterized in the research. SEM pictures of POSS/BMI nanocomposite exhibit that the vinyl POSS has significant improvement in toughness of the materials, and its eight vinyl groups lead to chemical bonding interface with BMI resin in the nanocomposite. Results of optical microscope indicate that the corporation of POSS in PEK-C/BMI blend postponed phase separation process. The morphologies show that POSS/PEK-C/BMI systems have a similar phase separation structure with PEK-C/BMI blend.

Real time dielectric investigations of phase separation and cure in rubber modified epoxy resin systems

1992 ◽  
Vol 28 (5) ◽  
pp. 505-512 ◽  
Author(s):  
Costas G. Delides ◽  
David Hayward ◽  
Richard A. Pethrick ◽  
Argyris S. Vatalis
Keyword(s):  
Phase Separation ◽  
Epoxy Resin ◽  
Real Time ◽  
Modified Epoxy

Performance Comparison of Three Density-Independent Calibration Functions for Microwave Moisture Sensing in Unshelled Peanuts during Drying

2020 ◽  
Vol 36 (5) ◽  
pp. 667-672
Author(s):  
Micah A. Lewis ◽  
Samir Trabelsi
Keyword(s):  
Moisture Content ◽  
Real Time ◽  
Complex Permittivity ◽  
Free Space ◽  
Calibration Function ◽  
Moisture Sensor ◽  
Content Determination ◽  
Transmission Measurements ◽  
Independent Calibration ◽  
Moisture Content Determination

HighlightsReal-time, free-space transmission measurements of relative complex permittivity in unshelled peanuts during dryingDynamic application: temperature, density and moisture content changing during dryingThree density-independent calibration functions evaluated for accuracy in real-time moisture content determinationReal-time moisture content determination with standard error of performance (SEP) = 0.55% moisture content for all calibration functionsCalibration function most commonly used with microwave moisture sensor was determined to be most accurate; SEP = 0.448% moisture contentAbstract. A microwave moisture sensor, developed within USDA ARS, has been used to determine moisture content in unshelled peanuts during drying. Relative complex permittivities of the peanuts obtained from free-space transmission measurements at 5.8 GHz are used for the moisture determination. Due to variations in density caused by drying, it is advantageous to estimate moisture content independent of bulk density. Therefore, moisture content was estimated with three density-independent calibration functions to assess which one provided optimal accuracy. One of the functions is based on the measured attenuation and phase shift, and the other two are permittivity based (one of which is commonly used with the microwave moisture sensor). The sensor was calibrated for peanut pod moisture content determination over a temperature range of 10°C to 40°C and a moisture content range of 6.5% to 19% wet basis (w.b.). Statistical analysis showed high coefficients of determination (r2), = 0.97 for the calibration with each function. Peanut pod moisture content was determined with the sensor in real-time as peanuts dried, and estimated moisture content was compared to the reference oven drying method. While the standard error of performance (SEP) for the three functions was = 0.55% moisture content, the calibration function most commonly used with the microwave sensor was observed to be the most accurate (SEP = 0.448% moisture content). Microwave sensing is a viable solution for nondestructive, real-time determination of moisture content in peanuts in dynamic situations such as drying. Keywords: Complex permittivity, Dielectric properties, Free-space measurements, Microwave sensing, Moisture content, Peanut drying.

A new method for monitoring phase separation in glasses

2003 ◽  
Vol 5 (5) ◽  
pp. S221-S224 ◽  
Author(s):  
Karl Gatterer ◽  
Margit Teufel
Keyword(s):  
Phase Separation ◽  
New Method ◽  
Monitoring Phase
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