Advanced Materials Research Vols. 393-395

Abstract: SiC hollow spheres were prepared by template mothod with polyethylene ball.The phase composition, morphology, momicrostructure, porosity and resistivity of the SiC hollow spheres were characterized by X-ray diffration, scanning electron microscopy, porosity test and voltammetry. The mechanism for formation of porous hollow pheres were discussed. The purification efficiency and performance of regeneration under ohmic heating were investigated using the prepared SiC hollow spheres for adsorbing particles in exhaust gas of diesel engine. The results show that the SiC hollow spheres comprise inner hollow and outer shell with much more micropores, and the thickness of the shells with microporosity having 80-120 nm is obout 300μm，The SiC hollow spheres consists mainly α-SiC, β-SiC and with a small quantity C, SiO2 and free Si. The purification efficiency could reach to 94 % or more for adsorbing particles in exhaust gas of diesel engine exhaust gas in 90 min because of its especial pore structure. Within ohmic heating, the SiC hollow spheres could work in a constant state of purification and and can its efficiency of purification could reach to 96% or more of efficiency in 180 min because of its excellent electro-heating performance.

Abstract: Named Entity Recognition is one of the important research fields in Information Extraction. This paper first introduces Information Extraction and Named Entity Recognition, then introduces GATE which is a tool for Information Extraction, and discusses the rules of Money Recognition using GATE.

Abstract: Methods to analysis the DOF(degree of freedom) and singularity of pure serial and pure parallel manipulator, which can not be used to the serial-parallel manipulator directly, three type of practical topological units and one type of virtual topological unit adopted, Synthesis method of topological dimensionality of the spatial mobility of each topological unit integrated together, architectures of serial-paralle mechanism discussed, also the formula and process of its topological dimensionality of spatial mobility presented, singularity analysis of serial-parallel mechanism can be carried out based on the forgoing results.

Abstract: For preparing Mo-based composite materials enhanced by SiCf by powder metallurgy, the high temperature of chemical compatibility between SiCf and Mo was analyzed by experimental method in order to find whether the reinforcement can effectively composite with matrix for playing synergy effect. The mixture of SiCf and Mo powder was pressed and then sintered. Using scanning electron microscopy (SEM), the fracture surface of the sintered body was observed. Using X-ray diffraction (XRD), the generation of new phase in the sintered body was analyzed. The sinter's density and hardness was tested also. The results are as follows. After 1750°C sintered, SiCf in the presence of metal Mo had decomposed and disappeared. Decomposed products which were C and Si had reacted with Mo to produce mainly compounds Mo5Si3, MoC and a small amount of MoSi2. The disappearance of the SiCf leave more holes in the substrate. Both density and hardness of the sinter are decreased.

Abstract: Humankind simmered with limitless appetency but never satisfied entirely, the weakness of humanity is too much appetency, whether for human’s survive or for development. The process of making tools is the result under the action of humanity, drived by natural attributes and free attributes of humanity, on one hand, drived by internalized natural attributess of seeking for safety, comfort and self-realization, and exterior natural attributess of lazy, jealousy and selfish, humankind devote themselves to the pursuance for physical and psychic wealth, the individual interests realized under the sake of realization of group’s interests. On the other hand, in view of the fact that the human society exist in country and nationality, whether individual or groups dominated by free attributess of humanity, lead the development of each industry through law and guild regulations, as well as the development of machinery included. The development of machinery is a mirror of human’s development history, machinery is the historical result of the revolution of production tools, it is the arm to change humankind and the world, it’s appearance, renovation and disuse as a reslult of humanity, it include the characteristics and contents of humanity, it represent the weakness and mightiness of humanity.

Abstract: This paper reviews the mini emulsion in the timber industry and development. Introduction of the small foreign Emulsion Synthesis and Application of the latest developments. Mini emulsion adhesive is a rapid development over the past decade and has practical use of new adhesives, with no formaldehyde pollution, water resistance and anti-aging performance, the application of mini emulsion polymerization of a wide range of performance. Discusses the mini prospects for the development of emulsion adhesive. With the development and application of wood-based panel industry continues to expand the range of wood products of a higher water resistance and durability requirements, adhesive application market more widely, the variety is also increasing. Between dissimilar materials, composite wood and the growing need for the traditional timber industry with plastic, urea formaldehyde(UF),phenol formaldehyde(PF),melamine formaldehyde(MF)plastic(the Department of formaldehyde glue) can not fully meet, in which The largest amount of formaldehyde, urea-formaldehyde glue pollution problems caused by people even more widespread concern, it is necessary to vigorously develop new wood adhesive for industrial use. Emulsion is a rapid development over the past decade and have been utility of the new adhesive, with no formaldehyde pollution, water resistance and excellent aging resistance, and adaptability to be glued materials, etc., widely used in wood glue and secondary processing Therefore, great attention by the timber industry, competing for exploitation. Diameter of dispersed droplets in the emulsion 50 ~ 500nm, between macro and micro emulsion between emulsion, known as fine emulsion. Miniemulsion system, in the sub-micron particle size, larger than monomer swollen micelles (diameter of about 40 ~ 50nm), less than the monomer droplets (diameter of about 1000nm), a wide size distribution. Miniemulsion polymerization can not be compared with the advantages of conventional[1], Therefore, polymer and materials science has become a hot research field, in the preparation of the special structure of polymers (such as the core - shell particles, polymer nanoparticles, polymer interpenetrating network structure, etc.) and stable polymer dispersions have Very broad application prospects.

Abstract: Many strategies can be developed into mature algorithms to compress video more efficiently than today’s standardized codecs. Future video compression algorithms may employ more adaptability, more refined temporal and spatial prediction models with better distortion metrics. The cost to users is the significant increase of implementation complexity at both the encoder and decoder. Fortunately, it seems that bitrates have a slower doubling time than computing power, so the disadvantage of increasing implementation complexity may one day be balanced with much improved processor capabilities. Development trends and perspectives of video compression analyzed in the following paper, highlighting problems and research directions are also analyzed.

Abstract: This study sought to resolve the current imbalance of demand and supply of the military instructors on the campus in Taiwan. Having witnessed the importance of a sustainable supply of certified military instructors to support the all-people-defense-education, the study first reviewed two versions of teacher training programs carried out by the Ministry of Defense and normative colleges. After exposing the weaknesses of these two versions of selection practice, this study continued with its recommendation. It is hoped that with its suggested concept of building partnership via outsourcing, professional identity of the military instructors can be elevated and ascertained. Specific contributions of this study are: the National Defense Education Division made sophisticated system of teacher education and teacher key capabilities. Project commissioned by the National Defense Education recruitment agency approach teacher education ideas

Abstract: The rupture and deformation of Shaft wall in the vertical topsoil in coal mining, which appears on the common and also is relatively unique phenomenon in China. Today with the increasing of the deep and extra deep Shaft, the destruction of the Shaft wall brings us more difficult task. To solve this basic problem need to figure out the shaft wall rupture mechanism. This paper discusses the current research status of the shaft wall, existence problems and content of the research. We did a lot of engineering investigation and analysis. Focus on the structure design of the wall, the main factors of influence rupture, mechanical characteristics of side wall and etc. Summarizing the shortage that in the study of the shaft wall rupture mechanism, making a supplementary . At the same time, the corresponding relationship between the vertical pressure with the groundwater level, between the groundwater level with vertical additional force. Maximum value of the vertical additional force . The inner link between vertical additional force with vertical pressure, with the depth of surface soil, with the diameter of the mineshaft, the thickness of side wall, the measures for preventing vertical shaft flood. From the five aspects, which reveal the content, analysis the object of study, and show the important significance of research.

Abstract: A three-dimensional finite element model was created in PATRAN to perform stress distribution into the influence of disbonded adhesive in stepped-lap repairs of composite open-end cylindrical laminated shell. Extracted and studied the value of the stress on every ply, and every node, ordered by the X coordinate. A study has been presented that the rim of patch is greatly affected by disbonded types, however, the central area of the patch is less affected relatively, especially between ±20mm, that the diameter is equal to the diameter of the damage, the stresses are flatly changed. And for the whole model, the maximum is in the sixth layer, so that the internal area is the most easily to be damaged. Therefore, it should be force on this special area in experimental health assessment such as using piezoelectric elements. It could provide certain maintenance basis for the future practical repair.