The process of change for thermo-oxidative degradation of latex film at different vulcanization time during the prevulcanization of latex by peroxide was studied by using of TG-DTG and DTA.
The application of surfactant in microbial degradation of petroleum pollution in recent years is introduced in this paper and the factors of choosing the eptitude surfactant are also disc.
The result indicates that the main metabolic product of petroleum hydrocarbon degradation is acetic acid and surface active agent of glycolipid composed of fatty acid and rhamnose.
Moreover, it was shown that degradation of lignin was promoted by veratryl alcohol added, no effect of veratryl alco-hol on degradation of cellulose and hemicellulose was detected.
In the present study, observations were made to determine if the yolk protein, vitellin, was released from the ovaries into the hemolymph without degradation during oosorption.
Bio - degradation role of aerobiotic organic substance and relationships between biological degradation and dissolved oxygen were stated, which provided theoretical basis for waste water reatment.
On the basis of mechanism analysis and compare of CODCr degradation rate, parachlorophenol and aniline were found to be easier degraded by ferrate than nitrobenzene.
This paper briefs the industrial usages i and harmfulness of cyclopentanone and cyclohexanone, and reviews the research progresses in microbial degradation of cyclopentanone and cyclohexanone.
As a new technology of organic pollutant degradation, the photocalalytic method, which effectively decomposes nondegradable pollutants, is becoming increasingly important in wastewater treatment.
Both enzymatic pathway (degradation by keratinase) and non-enzymatic pathway that is sulfitolysis occurred in the degradation process by streptomycete sp.B221.
The results indicate that ultrasound alone could initiate lipid peroxidation and lecithoid configuration degradation resulting in membrane fluidity decline.
UN Secretary-General Ban Ki-moon said in a speech that " land degradation affects a significant portion of the Earth's arable lands, directly impacting the well-being of people and economic development of countries" .
With degrading soils all over the world, there is absolutely no question that the governments of the world have focused on climate change far more than they focus on loss of biodiversity or land degradation.
Is it to be conceived that men who have enjoyed, for such a length of days, the light and happiness of freedom, can be restrained, and shut up again in the gloom of ignorance and degradation?
While this might be solved in the future by setting up rotating living spaces, for now, our crew has to live with low gravity and exercise a lot to slow the degradation down.
But then, I have seen at least one paper that found that the cycle of heating and freezing, if you use the same container to do both many times, will also enhance degradation and also enhance those plasticizers leaching out.
BYARUHANGA: It is estimated that if this degradation continues, we shall lose all the wetlands by 2030. And that would be a very big disaster for the country and for the world.