Measurement and Prediction of Excess Enthalpies for Ternary Solutions 1-Ethyl-3-methylimidazolium Dimethylphosphate + Methanol or Ethanol + Water at 298.15 K and at Normal Atmospheric Pressure

2014 ◽  
Vol 59 (2) ◽  
pp. 205-211 ◽  
Author(s):  
Xiaodong Zhang ◽  
Dapeng Hu ◽  
Zongchang Zhao
Keyword(s):  
Atmospheric Pressure ◽  
Excess Enthalpies ◽  
Ternary Solutions ◽  
Normal Atmospheric Pressure

Measurements and analysis of the excess enthalpies of some dichloroalkane + 2-ketone systems using UNIFAC group-contribution model

1994 ◽  
Vol 72 (2) ◽  
pp. 304-307 ◽  
Author(s):  
Consolación P. Menaut ◽  
José M. Pico ◽  
Josefa Fernández ◽  
José L. Legido ◽  
M. Inmaculada Paz Andrade
Keyword(s):  
Binary Mixtures ◽  
Proximity Effect ◽  
Atmospheric Pressure ◽  
Group Contribution ◽  
Experimental Results ◽  
Excess Enthalpies ◽  
Calvet Microcalorimeter ◽  
Group Contribution Model ◽  
Normal Atmospheric Pressure ◽  
Unifac Group Contribution Model

Experimental excess molar enthalpies hE at 298.15 K and normal atmospheric pressure were obtained for the binary mixtures 1,2-dichloropropane + (2-propanone, 2-butanone, or 2-pentanone), 1,3-dichloropropane + (2-butanone or 2-pentanone), 1,4-dichlorobutane + (2-butanone or 2-pentanone) using a Calvet microcalorimeter. The hE values for all the mixtures were negative. The experimental results used to test the capability of the interaction parameters of two versions of the UNIFAC group-contribution model to predict the proximity effect in these kind of mixtures.

Research of Water Damage Resistance Performance of CAM in Low Temperature Condition

2013 ◽  
Vol 723 ◽  
pp. 157-162
Author(s):  
Jian Li ◽  
Qu Chao ◽  
He Ping
Keyword(s):  
Low Temperature ◽  
Atmospheric Pressure ◽  
Asphalt Pavement ◽  
Natural World ◽  
Chloride Salt ◽  
The Road ◽  
Normal Atmospheric Pressure ◽  
Water Damage ◽  
Resistance Performance ◽  
Complex Polymer

Under normal atmospheric pressure conditions, volume suddenly increases about 11% when the water freezes and decreased when the ice melts. The pressure can reach up to 2500 times of atmospheric pressure in the closed space when the water freezing. This is a very important characteristic of the natural world and the industrial. In low temperature condition, the snow on the pavement is easy to melt and freeze, and it will affect the road safety, increase the cracking of the road and accelerate asphalt pavement water damage. Bitumen is a mixture consisting of some extremely complex polymer hydrocarbons and hydrocarbon derivatives of non-metallic (oxygen, sulfur, nitrogen). Deicing salt is used to prevent freezing in that area, chloride salt is its main ingredient. When the water melting point reduced, it is not easy to icing but to penetrate the asphalt pavement. If the temperature is continued to reduce, salt solution will still freezing. At last, the pavement will form water damage in repeated freeze-thaw cycles conditions.

scholarly journals The influence of argon gas flow in the killing of staphylococcus epidermidis bacteria

2018 ◽  
Vol 16 (36) ◽  
pp. 134-139
Author(s):  
Ahmed Mahmoud Shihab
Keyword(s):  
Staphylococcus Epidermidis ◽  
Atmospheric Pressure ◽  
Gas Flow ◽  
Biotechnological Applications ◽  
Plasma System ◽  
Argon Gas ◽  
Killing Rate ◽  
Normal Atmospheric Pressure ◽  
Non Thermal Plasma

In this research, non-thermal plasma system of argon gas is designed to work at normal atmospheric pressure and suitable for work in medical and biotechnological applications. This technique is applied in the treatment of the Staphylococcus epidermidis bacteria and show the role of the flow rate of Argon gas on the killing rate of bacteria, and it obtained a 100 % killing rate during the time of 5 minutes at the flow Argon gas of 5 liters/ min.

Plasma Sterilization at Normal Atmospheric Pressure

2010 ◽  
pp. 181-192
Author(s):  
Tetsuya Akitsu ◽  
Siti Khadijah Za aba ◽  
Hiroshi Ohkawa ◽  
Keiko Katayama-Hirayama ◽  
Masao Tsuji ◽  
...  
Keyword(s):  
Atmospheric Pressure ◽  
Plasma Sterilization ◽  
Normal Atmospheric Pressure
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