temperature contrast
1.Raw thermal images acquired by pulsed thermography (PT) usually have low signal noise ratio (SNR) and temperature contrast.
2.Using diethanolamine as aminating agent and glacial acetic acid as neutralizing agent,aminated epoxy acrylic cationic resin was prepared.The effect of technology of aminated epoxy acrylic resin on properties of eletrodeposition was studied by conductivity meter and electrophoresis apparatus.It was shown that,conductivity firstly decreased,and then increased with aminating temperature increase.In contrast with putting polyacrylic resin into thin acetic acid solution,the more compact film could be achieved by neutralizing polyacylic resin with glacial acetic acid and then add it into water.When neutralizing temperature was enhanced,the speed of electrodepsidon was found to increase,and the film was also more compact.Increasing the DN leads to enhanced conductivity and smaller particle size.When DN equaled to 80％,the smoothest film could be achieved.
3.Comparing with the polymer flooding,the technique of the colloidal dispersion gels (CDG) has the better properties of resisting the high salinity and temperature,also can adjust permeability contrast in deep reservoir. Its economic cost is low,so it is a very useful new method for enhanced crude oil recovery.
4.Processed in too weak a developing solution, or for too short a time, or at too low a temperature to produce a normal degree of contrast. Used of film.
5.The paper through making Marshall and the wheel rut test sample joining the fiber in the asphalt concrete,carries on a series of experiments and studied the asphalt concrete to mix the textile fiber by the Marshall stability,the water stability,the high temperature stability,the low temperature crack resistance energy,and carries on the contrast analysis to the ordinary dense gradation asphalt concrete of the performance.
6.And as for PP/MMT composites, the thermal decomposition temperature firstly increases and then decreases with the contents of MMT increase In contrast to PP, the decomposition temperature of PP/MMT composites has improved 11 C when the content of MMT is 5 percent.
7.Secondly, other parameters such as temperature difference and emissivity of target and sky, molecular absorptive transmittance, instantaneous field of view (IFOV), contrast threshold and radiant wavelength are discussed in detail.
8.High temperature shear test was done to analyze how the cohesion(C) and fractional angle (?) varied with mortar content and age, while contrast of rutting depth between the mixture of cement- asphalt concrete and common asphalt concrete with similar gradation was also made.
9.The dust-protection ration is about 60%. Comparison to the contrast, the translucency ration can increase 4.97—10.18%. The temperature would be increased about 5.3 ℃ and the temperature within 5 cm land layer would high 3.7℃.
10.It also shows significant positive correlations between mean tropospheric temperature over the North region(including North China, Northeast China, East Mongolia and Korea Peninsula) with the interdecadal variation of Indian summer monsoon. The declining of the mean troposphere temperature over the North region may lead to the weakening of the Indian summer monsoon intensity via the changing of land-sea thermal contrast.
