Advanced Materials Research Vol. 859

Abstract: The research purpose is the change for acid pollution lateritic shearing strength indices and compressor characteristics indicial under different concentration of hydrochloric acid , differ curing time in text.The test result proven,acid pollution lateritic shearing strength indices and compressor characteristics indices population take on depress tide in company with hydrochloric acid concentration and curing horary Increase.

Abstract: A novel and stereoselective synthetic method for the preparation of 3α-cholesterylamine was developed. This method had many features, such as easily accessible cholesterol starting material, high stereoselectivity, simple procedure, short reaction time, and good yield.

Abstract: An AKTI-IV analog with a biotinylated linker extended from the position of the ethyl group in AKTI-IV have been designed and synthesized. Compared to previous alkylation strategy with the iodo biotin linker, the present method alkylated the linker without biotin moiety. The final biotinylation with biotin-OSU afforded the target molecule in much higher overall yield.

Abstract: An improved method for practical synthesis of 4-azaindole from 2-chloro-3-nitropyridine has been developed. In the key step, decarboxylation with acetic acid afforded 3-nitro-2-pyridylacetonitrile in high yield.

Abstract: This study investigates the degradation of Nonylphenol. The degradation affecting factors including solution ozone dosage, initial concentration, pH, temperature and ultraviolet. The results indicated that when the ozone contents changes, the Nonylphenols degradation rate changes as well. The higher ozone concentration contribute to the faster degradation; With the increase of initial concentration of Nonylphenol, the removal rate of it decrease on the contrary, while with the initial concentration increases, the quality of unit ozone degradation of Nonylphenol is ascenting and then tend to a constant; The remove rate of Nonylphenol is improving when the pH value vary from 4.86~10.34. The effect of Nonylphenols ozonation in higher temperatures is better than it is in lower temperature; Ultraviolet radiation is also favorable for the removal of Nonylphenol as it can shorten the reaction time as well as reduce the amount of ozone.

Abstract: Degradation properties of phenol using nano-TiO2 as photocatalyst in aqueous solution were investigated. The effect of annealing temperature and ionic modification on the degradation was studied. The results showed that, 500 °C annealed TiO2 was better than 700 °C annealed. Photocatalyst nano-TiO2 material doped with Fe3+ was prepared quickly by sol-gel process and was used as photocatalyst to degrade phenol solution of 100mg/L under UV irradiation for 3 hours. UV spectrophotometer testing was made and found that two peaks at 210 nm and 270 nm were significantly become low, indicating that the phenol has been degraded. The phenol degradation rate was 94.18%.

Abstract: A high-temperature resistant coating that can be used at 1300 °C was prepared in combination with silicone resin and fillers. The effect of ZrO₂ on high-temperature resistant and mechanical properties of the coating was studied by thermo gravimetric analysis (TG) and X ray diffraction (XRD) .The results shows that the performance of the coating is the best when the amount of ZrO₂ is 20wt%.the coating can resist 1300 °C, pencil hardness reaches 3H; Meanwhile, It can improve the adhesion and flexibility of the coating.

Abstract: We pretreat the high salt level, high CODcr and strong acid refinery wastewater and analyse the influence of the iron-carbon ratio and the pH to ferric-carbon micro-electrolysis. Thereby we confirmed the reaction time and mixture component. Furthemore, we discussed the influence of supersaturated sodium on ferric-carbon micro-electrolysis. The results show that ferric-carbon micro-electrolysis can take full advantage of high salt, strongly acidic water quality characteristics of refinery wastewater to confirm that the removal rate of CODcr can reach to 49%, at the conditions of the iron-carbon ratio of 1:1, micro-electrolysis time is 45 minutes and the pH rise to 8 by lime milk. In addition, the decoloring effect is remarkable.

Abstract: In this paper we give a brief introduction of the data mining method used in thermal power system optimization. The issues as well as the influence of energy material property (take coal as example) on performance matching and optimizing of power plant are overviewed. The development of this domain is presented to readers. Finally, we draw several conclusions. First, Data Mining could have a deeply and widely use in optimization of thermal power plant. Second, the energy material property has a deeply impact on the safe operation and economic operation. The investigation is of great necessary.

Abstract: Because the lance position of oxygen-enriched air and top-blown furnace is affected by lance pressure, melt temperature, melt furface,the type of slag and other factors, it is difficult accurately measured. Firstly, processing informations(excluding data,analysis correlation) to the production data.Then identified the main auxiliary variables of soft measurement model and established MLR and PCR soft prediction model of the lance position.Secondly,according to production data,through fitting and forecasting of these models, the results show that the PCR model's forecasting ability is better than the MLR model.Finally, the obtained model is embedded in WinCC software platform and further verify the feasibility of the model.The research may guide the production and lay theoretical foundations for the lance position control