Advanced Materials Research Vols. 225-226

Abstract: In view of the Huai Nan mining area deep mine Dingji mine fully mechanized mine head face low-index outburst suddenly extrusion the region gas geological feature, analysis mechanism of the suddenly extrusion frictional sliding instability. The research gain sensitive index critical value drilling bits S and depth of hole coefficient S′, drilling gas inrush initial velocity q and attenuation coefficients Cq, its innovative index S′ the forecast enhanced the rate of accuracy take the ground stress as the leading role low- index outburst. The results show that the forecasting non-outbursting risk rate is 87%, and the forecasting non-outbursting accuracy rate is 100% during 2000m tunnel driving in test area.

Abstract: OMR (Optical Music Recognition) is a technology for digital musical score image processing and recognition by computer, which has broad applications in the digital music library, contemporary music education, music theory, music automatic classification, music and audio sync dissemination and etc. This paper first has a brief description of OMR research and focuses on describing the research of Chinese OMR literature, it represents the research status and results in China, then the paper pointes out that the target of OMR research in China must tend to Chinese traditional musical score image processing and pattern recognition.

Abstract: The Quality of performance of Networked control system (NCS) depends on the quality of network service. To guarantee the limit of quality of network service of NCS, the mechanism of end-to-end rate control is applied to NCS. An novel end-to-end rate control scheme of guaranteeing minimal rate for each control loop of NCS is proposed. This scheme can guarantee to meet the requirements of quality of network service of NCS and show TCP friendly. Finally, the simulation results show that the proposed algorithm is effective.

Abstract: Real estate investment is distinctively different from others with its high input capital, long period of recycling, huge fluctuation of house price and high sensitivity to other factors. The traditional decision method could not make a rational judgment of the flexible management value in real estate project investment. With regards to the policy and market features of real estate investment in China, a real option model suitable for real estate project investment decision under high uncertainty in China is constructed. At last, a case of a real estate company is studied to test the real estate investment decision model.

Abstract: An energy saving residential building in Zhangjiakou was took as research object, which was designed and constructed according to the criterion of 65% energy saving of the third stage, utilizing simulation software Dest, which was developed by Qinghua University, energy consumption simulation and economic analysis were done to the building. The results show that compared with the former residence which was built according to the non-energy saving design, the implementation of new design standard for building energy saving can not only achieve better energy saving effect, but also its payback period is short, so the new design standard for building energy saving is worth spreading.

Abstract: A proper total coloring of a simple graph G is called vertex distinguishing if for any two distinct vertices u and v in G, the set of colors assigned to the elements incident to u differs from the set of colors incident to v. The minimal number of colors required for a vertex distinguishing total coloring of G is called the vertex distinguishing total coloring chromatic number. In a paper, we give a “triangle compositor”, by the compositor, we proved that when n=0(mod 8) and , vertex distinguishing total chromatic number of “ladder graphs” is n.

Abstract: The electric power carrier communication is the special communicated way of electrical power system , one kind of double CPU, the low power loss, the low cost digital multiplexer has been designed in conducted the full research to this communicated way, which is satisfied the need of the electric power correspondence transmission system. In respect of hardware designing, dual-port RAM and double CPU are adopted for coordinating work and greatly improving efficiency; dual-port RAM , which functions as a shared mailbox of double CPU, is used to store markers, pointer and coordinate the work of double CPU.

Abstract: Odorous pollution increasingly becomes a serious environmental and social problem. Due to its complexity and a wide range of sources, affected by meteorological, topography, hypsography etc surroundings, being not easy to master its pollution diffusion regularity, odor has been a major hot and difficult problem in the departments of environmental protection administration. According to its characteristics of various composition, odorous pollutants having short time in diffusion way, the higher instantaneous concentrations, the odorous pollutants forecast models are established on the basis of gauss diffusion model, In the paper, we establish odorous pollutants dispersion prediction stimulation models on the basis of gauss diffusion model, including point source diffusion model, enclosed point source diffusion model. it provides technical support odorous pollutants forecasting and simulating.

Abstract: This paper makes an examination on the sensibility between top management incentive mechanism and performance of listed companies by taking data of annual salary of the top management, shareholding ratio and performance of listed companies from 2006 to 2008, adopting systematic and empirical methods to state and analyze the related documents both at home and abroad in combination with the current situation and problems of salary of the top management and shareholding incentive mechanism in China. For the above empirical results, this paper in the end makes some proposes which is referable and instructive for future company rules and project of top management incentive mechanism.

Abstract: The application of information technology in mathematics teaching has been a main direction in mathematics course reform all over the world. The paper expounds the methods of integrating the modern information technology and mathematics teaching, discusses the value and principles of the integration of the two, and proposes the questions that should be paid attention to at the end of the paper. The increasing mature of information technologies and its wide application influence people’s living and learning method profoundly. Since modern information technology can transmit information on the network, and information is displayed in various ways and is stored conveniently, the value, goal contents and learning methods of mathematics education are influenced by it. Therefore, the integration of modern information technologies and mathematics teaching is the key element related to the improvement of college teachers’ information abilities.