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Journal of Chromatography A, 2019 This work seeks to explore and understand the effects of column orientation and degree of modification of continuous stationary phase gradient columns under a mobile phase gradient using both simulations and experiments. Peak parameters such as retention times, peak widths and resolution are obtained for five phenolic compounds on a C18-silica gradient
Maryanne M Collinson +2 more
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Measurement of phase gradients in the EEG
Journal of Neuroscience Methods, 2006Previous research has shown that spatio-temporal waves in the EEG are generally of long spatial wavelength and form smooth patterns of phase gradients at particular time-samples. This paper describes a method to measure smooth phase gradients of long spatial wavelength in the EEG.
D M, Alexander +4 more
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Polarimetric phase gradient autofocus
2007 IEEE International Geoscience and Remote Sensing Symposium, 2007In the past decade the use of fully polarimetric SAR (polSAR) systems has increased significantly due to their effectiveness in target classification and detection applications. While polSAR imagery has been extensively used to distinguish between different scattering mechanisms in a scene, there has been a lack of research in the exploitation of ...
MARTORELLA, MARCO +3 more
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pH Gradient Reversed-Phase HPLC
Analytical Chemistry, 2003pH gradient HPLC is reported, which is a new original mode of reversed-phase high-performance liquid chromatography applicable to ionogenic analytes. The method consists of programmed increase during the chromatographic run of the eluting strength of the mobile phase with respect to the acid/base analytes separated.
Roman Kaliszan +2 more
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