Advanced Materials Research Vols. 912-914

Abstract: Heterogeneity, Permeability ratio, Selective water plugging agent, Oil-soluble resin Abstract. In view of high heterogeneity and complicated oil-water relation of fault block oil reservoirs, conventional technology of water plugging and profile controlling cannot well adapt to it. An oil-in-water emulsion for selective water plugging was designed by using emulsified heavy oil for reference and the aim was to improve the injection ability and plugging strength. The single core flooding results indicated that its breakthrough pressure gradient >26MPa/m,water plugging rate >97% after water flooding for 100 pore-volume. The parallels core flooding results indicated that it has good water flooding endurance than emulsified heavy oil, and can be used to the selective water plugging and profile controlling of heavy heterogeneous layers with the permeability ratio is no less than 7. Field application is successful.

Abstract: Lanping County of Yunnan has a difficult used ore of high oxidation rate lead-zinc, lead mainly include cerusite, followed by galena, a small amount of phosphorus (arsenic) lead and lead chloride (iron) alum; Zinc mainly include hemimorphite,a small amount of sphalerite. grade of lead is 6.83% , zinc 4.95% , lead oxide ratio is 91.74%, zinc 98.76%, so the ore is a high oxidation rate of refractory lead-zinc.Through extensive testing, ultimately used flotation process.Through the closed-process,lead concentrate’s grade is 44.98%, zinc 1.95% , recovery of lead is 72.62%;zinc’s concentrate grade is 21.20%, lead 2.50%, zinc’s recovery is 69.53%, the experiment has a good result.

Abstract: One acrylic ester of cytosine was synthesized by a facile method, and its molecular structure was characterized by NMR, HRMS, and X-ray crystallography. In this paper, the crystal structure of the analog is described and the available data of cytosine. The X-ray crystallography showed that the adjacent molecule of cytosine Derivatives was tied to form analogous antiparallel β-sheet arrangement.

Abstract: A self-designed small size three-effect tubular still is used to conduct a study on the stills performance in the condition of different medium gases (air, oxygen, carbon dioxide and helium, namely a research about the steady state water-yielding capacity and heat preservation performance. The research concludes that when using carbon dioxide as the medium gas, the steady state water-yielding capacity of desalination facility is better at temperature of 80°and below, water-yielding rate can be as much as 0.6kg/h, which is increased by 18% compared of using air as medium gas; when using carbon dioxide as the medium gas, the heat preservation performance of desalination facility is better ,of which the average temperature is 2°higher than any other medium gas. Thus the system can perform better under the condition of medium gas of carbon dioxide without illumination.

Abstract: We here report a novel design and synthesis of a light-responsive nucleolipid by introducing an o-nitrobenzyl group that acts as a linker between a nucleotide and a lipid. The nucleolipid was applied readily to preparing smart vesicles and encapsulating hydrophilic guest molecules 5(6)-carboxyfluorescein (CF) in their inner aqueous phase. Upon light irradiation, their vesicular structure was disrupted as a result of the photolytic degradation of the nucleotide, resulting in CF release. Furthermore, temporally controlled CF release from these vesicles could be readily realized by turning on and off light. By demonstrating the molecular assembly and photo-disassembly cycle, this report aims to stimulate further research exploring practical applications of nucleolipids.

Abstract: Electrochemical reaction occurring in the SOFC cathode is the reduction of oxygen, therefore cathode materials for SOFC have to posses many properties. It is necessary to evaluate the performance and degradation of SOFC cathode since improvement of long-term stability is one of the major issues during SOFC commercialization process. The scope of this paper is focused on analyzing the chemical degradation of LSM cathode induced from many sources by GCI technique both from theoretical and experimental sides. This research is important toward the commercialization of SOFC because it could offer valuable information to overview chemical degradations from the SOFC cathode and develop strategy to realize high-durable SOFC.

Abstract: In this paper, the concentration of Vaporous hydrogen peroxide was measured by titanium oxalate method in different location of 40 feet container. Results show that with the increase of the distance between the measurement locations and vapor outlet, the concentrations of vaporous hydrogen peroxide gradually reduce, longer duration of decontamination, the concentration is slowly rising. Vaporous hydrogen peroxide can effectively diffuse in the contained space, it can be used for the internal space decontamination.

Abstract: In accordance with low success ratio of lithology identification in carbonate formation, a made of Identifying lithology of carbonate rocks through fuzzy mathematics has set up. 8 logging parameters reflecting lithology of carbonate rocks were selected and threshold values were determined. Lithologies of carbonate rocks were classified by using this identification mode and maximum subordination principle. Using field data identified 10 types of carbonate rocks, and they were compared with the result of core analysis, showing 85 % consistency. Therefore this method has higher accuracy for identification of carbonate lithology, and is quite promising in geological application.

Abstract: Since the bracket deformation caused by its deadweight is too large, and the riveting of aircraft panel is always over-tolerance, a new algorithm for analysis and compensation of bracket deformation is presented in this paper. The algorithm is formed by combining finite element (FE) simulation with analytic method, which is fit for different combinations of supporting plates of bracket system. The formula is constructed through cubic spline interpolation and envelope surface fitting according to the FE simulation data. Meanwhile, a corresponding compensation method is proposed. Finally, a numerical simulation example with the software of ABAQUS shows that the algorithm and its results are valid and feasible.

Abstract: The cable tension of cable-controlled vehicles solved by differential equations is a numerical solution, not analytical solution, making it difficult to establish their motion equations. Through research, this paper proposes that cable tension is the function of the vehicles motion position, through data analysis, the function relation formula of cable tension can be found, and by using regression method on large amount of tension data of a certain type of ROV, the mathematical expression of specific cable tension could be found, which lays a solid foundation for establishing motion equations of cable-controlled vehicles and researching their law of motion.