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937 Newest Publications about the topic data analysis

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Novel approach to relaxation data analysis in polyhydric alcohols

07-Feb-2012 | V. I. Zhuravlev, T. M. Usacheva, Moscow University Chemistry Bulletin, 2012

In this paper the experimental data on dielectric permittivity of 1,3-, 1,4- and 2,3-butanediols within the frequency range from 1 MHz to 36 GHz and the temperature range from 283 to 423 K were analyzed. The correlation between relaxation parameters of the Davidson-Cole equation and molecular ...

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Capillary flow of low‐density polyethylene

03-Feb-2012 | Ansari, Mahmoud; Zisis, Thanasis; Hatzikiriakos, Savvas G.; Mitsoulis, Evan, Polymer Engineering and Science, 2012

Abstract The capillary flow of a commercial low‐density polyethylene (LDPE) melt was studied both experimentally and numerically. The excess pressure drop due to entry (Bagley correction), the compressibility, the effect of pressure on viscosity, and the possible slip effects on the capillary ...

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Application of Differential Scanning Calorimetry-Chemometric Coupled Procedure to the Evaluation of Thermo-Oxidation on Extra Virgin Olive Oil

25-Jan-2012 | Rubén M. Maggio, Lorenzo Cerretani, Carlo Barnaba, Emma Chiavaro, Food Biophysics, 2012

In this work, the opportunity of adopting a differential scanning calorimetry (DSC)-principal component analysis (PCA) coupled procedure to measure the degree of thermal stress for extra virgin olive oil (EVOO) was presented. Oil was subjected to thermal stress under convectional or microwave ...

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Assessment of meat quality by NMR—an investigation of pork products originating from different breeds

01-Dec-2011 | Straadt, Ida K.; Aaslyng, Margit D.; Bertram, Hanne C., Magnetic Resonance in Chemistry, 2011

In the present study, meat obtained from uncommon and novel pig crossings between the rare Iberian and Mangalitza pigs and the more frequent Duroc and Landrace/Yorkshire pigs was characterized by time‐domain proton NMR relaxometry and high‐resolution proton NMR spectroscopy to elucidate the ...

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NMR on emulsions: characterisation of liquid dispersed systems

01-Dec-2011 | Bernewitz, R.; Guthausen, G.; Schuchmann, H. P., Magnetic Resonance in Chemistry, 2011

Pulsed field gradient NMR (PFG‐NMR) is an important method for the characterisation of emulsions. Apart from its application in quality control and process development, especially high‐field NMR methods can be applied to investigate emulsions properties on the molecular level. Meanwhile, complex ...

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NMR methods for beer characterization and quality control

01-Dec-2011 | Rodrigues, J. E.; Gil, A. M., Magnetic Resonance in Chemistry, 2011

The use of high‐resolution NMR spectroscopy in the brewing industry is described; most studies having aimed at assessing the composition of beer and its raw materials and correlating it to a variety of quality parameters. First, the application of NMR to the qualitative characterization of beer ...

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Performance of a four‐element Si drift detector for X‐ray absorption fine‐structure spectroscopy: resolution, maximum count rate, and dead‐time correction with incorporation into the ATHENA data analysis software

07-May-2010 | J. C. Woicik, B. Ravel, D. A. Fischer, W. J. Newburgh, Journal of Synchrotron Radiation, 2010

The performance of a four‐element Si drift detector for energy‐dispersive fluorescence‐yield X‐ray absorption fine‐structure measurements is reported, operating at the National Institute of Standards and Technology beamline X23A2 at the National Synchrotron Light Source. The detector can acquire ...

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