TITLE

# On a singular behavior of capillary surfaces

AUTHOR(S)
Robert Finn; Darren Lee
PUB. DATE
December 2003
SOURCE
Calculus of Variations & Partial Differential Equations;Dec2003, Vol. 19 Issue 1, p95
SOURCE TYPE
DOC. TYPE
Article
ABSTRACT
Mario Miranda raised the question, whether a capillary tube of section ${\cal D}_{0}$ in an infinite bath under a uniform downward gravity field always raises liquid higher over its section than does a tube of the same material and section ${\cal D}_1 \supset \supset {\cal D}_0$ . Finn and Kosmodem?yanskii, Jr. recently gave conditions under which a negative answer is obtained for all gravity small enough; they gave also an example in which ${\cal D}_0$ is a disk and in which the answer changes in a discontinuous way, for fixed ${\cal D}_1$ and differentiable change of $\partial {\cal D}_0$ . In the present work we characterize the most general convex ${\cal D}_1$ for which such a discontinuous change can occur.
ACCESSION #
11657109

## Related Articles

• Gas Chromatography at the 25th International Symposium on Capillary Chromatography. Hinshaw, John V. // LC-GC North America;Sep2002, Vol. 20 Issue 9, p850

Features the topics discussed during the 25th International Symposium on Capillary Chromatography and Electrophoresis in Italy on May 13-17, 2002. Workshops on comprehensive separations and liquid chromatography-mass spectrometry; Techniques and applications presented; Awards and recognitions...

• Hydrophilic Interaction Capillary Electrochromatography for the Separation of Polar Compounds. Ye, Mingliang; Zou, Hanfa; Kong, Liang; Lei, Zhengdeng; Wu, Renan; Ni, Jianyi // LC-GC North America;Oct2001, Vol. 19 Issue 10, p1076

The authors used hydrophilic interaction capillary electrochromatography (CEC) to separate polar compounds. Their system had a capillary column packed with a hydrophilic, strong cation-exchange material of poly(2-sulfoethyl aspartamide)-silica and a Hydrophobic mobile phase, which typically...

• Separation of Amino Acid Enantiomers Using Capillary Electrophoresis with a New Chiral Ligand. Lu Huang; Yi-Ting Chen; Yan-Xia Li; Li-Shuang Yu // LC-GC Europe;Nov2016, Vol. 29 Issue 11, p618

A chiral ionic liquid, namely 1-ethyl-3-methyl imidazole L-tartrate ([EMIM][L-Tar]), was applied as a new chiral ligand for the separation of tryptophan, tyrosine, and phenylalanine enantiomers by chiral ligand exchange capillary electrophoresis (CE). To validate the unique behaviour of...

• Simulation of Absolute Mobility Ionic Migration in Non-Aqueous Capillary Zone Electrophoresis. Ming-Ying Hsu; Hung, Chen-I. // International Journal of Transport Phenomena;2009, Vol. 11 Issue 1, p19

Traditional numerical schemes use the concentration diffusion equation to simulate the solute concentration distribution in CZE (Capillary Zone Electrophoresis) systems. However, although this equation adequately describes the diffusion of a solute liquid in such systems, it cannot describe the...

• Ionic liquids as background electrolyte additives and coating materials in capillary electrophoresis. Vaher, Merike; Borissova, Maria; Koel, Mihkel; Kaljurand, Mihkel // Proceedings of the Estonian Academy of Sciences, Chemistry;Dec2007, Vol. 56 Issue 4, p187

Now that many scientific investigations focus on ionic liquids (IL) to establish their potential in different chemical processes, their application for the separation of various classes of compounds in capillary electrophoresis has also been recognized. ILs have been used as background...

• Simultaneous Determination of Chlorpheniramine Maleate and Dexamethasone in a Tablet Dosage Form by Liquid Chromatography. Moyano, Mar�a A.; Rosasco, Mar� A.; Pizzorno, Mar�a T.; Segall, Adriana I. // Journal of AOAC International;Nov/Dec2005, Vol. 88 Issue 6, p1677

The article discusses the use of liquid chromatography for the determination of chlorpheniramine maleate and dexamethasone in a table dosage form. Analysis was performed at room temperature on a reversed-phase C18 column with ultraviolet detection. Chlorpheniramine maleate is defined as a...

• A Laser Diode Double-Pumped Solid- State Laser-Induced Fluorescence Detector for Capillary Electrophoresis and Liquid Chromatography. Bingcheng Yang; Feng Tan; Yafeng Guan // LC-GC North America;Oct2005, Vol. 23 Issue 10, p1110

Describes a laser-induced fluorescence detector for both capillary electrophoresis and high performance liquid chromatography. Use of a laser diode double-pumped solid-state laser; Design of a novel postcolumn flow cell; Detector response.

• Expression of Hemoglobin Variant Migration by Capillary Electrophoresis Relative to Hemoglobin A2 Improves Precision. Keren, David F.; Shalhoub, Renee; Gulbranson, Ronald; Hedstrom, Deborah // American Journal of Clinical Pathology;Apr2012, Vol. 137 Issue 4, p660

We report the precision of the mean migration position of hemoglobin (Hb)S, HbC, HbG (Philadelphia), and HbD (Los Angeles) in 193 samples of whole blood assayed by capillary electrophoresis (CE) and high-performance liquid chromatography (HPLC). By expressing the migration of Hb variants by CE...

• Molecular Interaction Sensors: A New Type of Detector for Separation Methods. Nagets, Luc J.; Everaert, Joseph; Vissers, Bert; Sekula, Justyna; Bohets, Hugo; Mongé, Maria; Peeters, Karl; Vervoort, Nico; Sadowska, Kamilla; Koziowska, Dominika; Brewster, Marcus; Vanhoutte, Koen // LC-GC Europe;Nov2007, Vol. 20 Issue 11, p558

Potentiometry is a new detection method for liquid chromatography (LC) and capillary electrophoresis (CE). The principle behind this method is familiar to chromatographers because the signals depend on the partitioning tendency of analytes over the sensor coating and the eluent. This...

Share