High-molecular-weight polyethylene oxide improves blood flow through stenosed carotid artery

1998 ◽  
Vol 126 (1) ◽  
pp. 694-696 ◽  
Author(s):  
M. B. Plotnikov ◽  
G. A. Chernysheva ◽  
M. S. Nevzorov
Keyword(s):  
Molecular Weight ◽  
Blood Flow ◽  
Carotid Artery ◽  
High Molecular Weight ◽  
Polyethylene Oxide ◽  
Flow Through

Analytical Prediction of the Heat Transfer From a Blood Vessel Near the Skin Surface Cooled by a Symmetrical Strip

1975 ◽  
Vol 97 (1) ◽  
pp. 61-65 ◽  
Author(s):  
J. C. Chato ◽  
A. Shitzer
Keyword(s):  
Heat Transfer ◽  
Blood Flow ◽  
Steady State ◽  
Carotid Artery ◽  
Blood Vessel ◽  
Analytical Method ◽  
Skin Surface ◽  
Analytical Prediction ◽  
Flow Through ◽  
Optimum Width

A steady-state analytical method has been developed to estimate the amount of heat extracted from a blood vessel running close to the skin surface which is cooled in a symmetrical fashion by a cooling strip. The results indicate that the optimum width of a cooling strip is approximately three times the depth to the centerline of the blood vessel. The heat extracted from a blood vessel similar to the carotid artery by such a strip is about 0.9 w/m-deg C, which is too small to affect significantly the temperature of the blood flow through a main blood vessel, such as the carotid artery.

Novel Templated Polyphenol for Ionic Conductivity

2001 ◽  
Vol 702 ◽  
Author(s):  
Ferdinando F. Bruno ◽  
Ramaswamy Nagarajan ◽  
Jayant Kumar ◽  
Lynne A. Samuelson
Keyword(s):  
Molecular Weight ◽  
Ionic Conductivity ◽  
High Molecular Weight ◽  
Polyethylene Oxide ◽  
Phenol Formaldehyde ◽  
Industrial Applications ◽  
Water Soluble ◽  
Reaction Conditions ◽  
Water Solvent ◽  
Potential Use

ABSTRACTPhenolic polymers and phenol formaldehyde resins are of great interest for a number of electronic and industrial applications. Unfortunately, the toxic nature of the starting materials (formaldehyde) and harsh reaction conditions required for the synthesis of these polymers have severely limited their use in today’s markets. We present here an alternative, biocatalytic approach where the enzyme horseradish peroxidase is used to polymerize phenol in the presence of a template such as polyethylene oxide. Here the template serves as a surfactant that can both emulsify the phenol and polyphenol chains during polymerization and maintain water/solvent solubility of the final polyphenol/template complex. The reactants and the reaction conditions of this approach are mild and result in high molecular weight, electrically and optically active, water-soluble complexes of polyphenol and the template used. High molecular weight water-soluble polyphenol/polyethylene oxide complexes were formed. The ionic conductivity and potential use of these polymers as polyelectrolytes for battery and solution cell applications will be discussed.

Reducing quartz gangue entrainment in sulphide ore flotation by high molecular weight polyethylene oxide

2010 ◽  
Vol 97 (1-4) ◽  
pp. 44-51 ◽  
Author(s):  
J. Gong ◽  
Y. Peng ◽  
A. Bouajila ◽  
M. Ourriban ◽  
A. Yeung ◽  
...  
Keyword(s):  
Molecular Weight ◽  
High Molecular Weight ◽  
Polyethylene Oxide ◽  
Sulphide Ore
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