scholarly journals Discussions of Effects of Surface Tension on Water Vapor Absorbed by Triethylene Glycol Solution Films

2018 ◽  
Author(s):  
Honda Wu (Hung-Ta Wu) ◽  
Tsair-Wang Chung
Keyword(s):  
Surface Tension ◽  
Water Vapor ◽  
Triethylene Glycol ◽  
Glycol Solution

Wet-chemical synthesis of quaternary chalcopyrite Cu(In1−xAlx)Se2 nanocrystals by triethylenetetramine-assisted triethylene glycol solution process

2014 ◽  
Vol 587 ◽  
pp. 698-704 ◽  
Author(s):  
Dalong Wang ◽  
Zhengguo Jin ◽  
Jian Wang ◽  
Tong Liu ◽  
Jia Li ◽  
...  
Keyword(s):  
Chemical Synthesis ◽  
Solution Process ◽  
Triethylene Glycol ◽  
Wet Chemical Synthesis ◽  
Wet Chemical ◽  
Glycol Solution

THE ACTIVATION OF PURIFIED HUMAN PLASMINOGEN IN SOLUTIONS OF ETHYLENE GLYCOLS

1963 ◽  
Vol 41 (1) ◽  
pp. 889-895 ◽  
Author(s):  
Phyllis S. Roberts
Keyword(s):  
Methyl Ester ◽  
Ethylene Glycol ◽  
Diethylene Glycol ◽  
Room Temperature ◽  
Fast Rate ◽  
Triethylene Glycol ◽  
Ethylene Glycols ◽  
Human Plasminogen ◽  
Glycol Solution ◽  
Rate Of Accumulation

Ethylene glycols have been found to allow activation of purified preparations of human plasminogen. The activity of the enzyme formed, plasmin, was measured using TAMe (p-toluene-sulphonyl-L-arginine methyl ester) as a substrate. In 50% (v/v) solutions of these compounds at pH 7.6 and 30 °C, plasmin accumulated faster in diethylene and triethylene glycols than in glycerol, but in ethylene glycol no plasmin was found. When lower concentrations of ethylene glycol (from zero to 50%) and shorter times of incubation were used, plasmin was found. With equimolar solutions (4.3 M) of glycerol and the three glycols, only diethylene glycol showed a fast rate of accumulation of plasmin. A 50% triethylene glycol solution partially inhibited the rate of spontaneous activation but stabilized the plasmin formed and therefore enzyme accumulated. At room temperature more plasmin accumulated than at higher temperatures when plasminogen was incubated in 50% triethylene glycol solution, and no plasmin was found when plasminogen was incubated at pH 7.6, 30 °C, in 50% solutions of propylene glycols, several ethers of the ethylene glycols, several polymers of various glycols, and dioxane.

scholarly journals Direct observation of anisotropic growth of water films on minerals driven by defects and surface tension

2020 ◽  
Vol 6 (30) ◽  
pp. eaaz9708 ◽  
Author(s):  
Sibel Ebru Yalcin ◽  
Benjamin A. Legg ◽  
Merve Yeşilbaş ◽  
Nikhil S. Malvankar ◽  
Jean-François Boily
Keyword(s):  
Surface Tension ◽  
Water Vapor ◽  
Film Growth ◽  
High Surface ◽  
Film Surface ◽  
Water Film ◽  
Element Cycling ◽  
Water Films ◽  
Nanoscale Topography ◽  
Underlying Mechanisms

Knowledge of the occurrences of water films on minerals is critical for global biogeochemical and atmospheric processes, including element cycling and ice nucleation. The underlying mechanisms controlling water film growth are, however, misunderstood. Using infrared nanospectroscopy, amplitude-modulated atomic force microscopy, and molecular simulations, we show how water films grow from water vapor on hydrophilic mineral nanoparticles. We imaged films with up to four water layers that grow anisotropically over a single face. Growth usually begins from the near edges of a face where defects preferentially capture water vapor. Thicker films produced by condensation cooling completely engulf nanoparticles and form thicker menisci over defects. The high surface tension of water smooths film surfaces and produces films of inhomogeneous thickness. Nanoscale topography and film surface energy thereby control anisotropic distributions and thicknesses of water films on hydrophilic mineral nanoparticles.

Parametric Analysis of Natural Gas Dehydration by a Triethylene Glycol Solution

2003 ◽  
Vol 25 (3) ◽  
pp. 189-201 ◽  
Author(s):  
P. GANDHIDASAN
Keyword(s):  
Natural Gas ◽  
Parametric Analysis ◽  
Triethylene Glycol ◽  
Natural Gas Dehydration ◽  
Glycol Solution

Performance Analysis of an Air Drier for a Liquid Dehumidifier Solar Air Conditioning System

1988 ◽  
Vol 110 (2) ◽  
pp. 120-124 ◽  
Author(s):  
A. G. Queiroz ◽  
A. F. Orlando ◽  
F. E. M. Saboya
Keyword(s):  
Mass Transfer ◽  
Air Conditioning ◽  
Water Vapor Pressure ◽  
Triethylene Glycol ◽  
Operating Conditions ◽  
Integral Approach ◽  
Air Conditioning System ◽  
Air Conditioning Systems ◽  
Glycol Solution ◽  
Transfer Potential

A model was developed for calculating the operating conditions of a non-adiabatic liquid dehumidifier used in solar air conditioning systems. In the experimental facility used for obtaining the data, air and triethylene glycol circulate countercurrently outside staggered copper tubes which are the filling of an absorption tower. Water flows inside the copper tubes, thus cooling the whole system and increasing the mass transfer potential for drying air. The methodology for calculating the mass transfer coefficient is based on the Merkel integral approach, taking into account the lowering of the water vapor pressure in equilibrium with the water glycol solution.

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