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According the actual equipment support demand of rapidly floating escape suit, this paper built the object oriented fault tree model for the rapidly floating escape suit, detailed descried the planning and realization method of the fault detection and analysis system with actual examples.

During the rapid urbanization of Chinese cities, great pressure is put on the work of historic city conservation by economic development. How to achieve balance between development and conservation is a problem that must be solved urgently for urban construction. This paper explores urban form conservation strategies and approaches adapting to economic sustainable development through an overall urban design project.

The application of the ideas and methods of lean construction is still in its infancy in China's construction industry, there are still many factors that restrict the implementation of lean construction, and how to find the key influencing factors is worthy study. We summarized the 28 influencing factors of Implementation of lean construction through project management expert interviews and field research in the construction site, and conducted a survey of 300 construction projects, distributed 710 questionnaires. After analysis of the survey questionnaires by using rough set theory and stepwise discriminate analysis finalized the 14 key factors affecting the implementation of lean construction and construction project performance.

In this paper, the recursive backstepping nonlinear control method is proposed. Based on the Lyapunov theory, the controllers are designed to achieve the new hyperchaotic system globally, asymptotically stabilized at the equilibrium point. Furthermore, a robust control method combining backstepping and sliding mode control techniques is used to control the system to another equilibrium point. Numerical simulation results show that the proposed control schemes are effective.

Zn1-xCdxS alloy nanoparticles have been prepared via solvothermal approach. The effects of the mole fraction of Cd on the nanoparticles’ structure, size and photoluminescence spectra were investigated. It shows that with increase in mole fraction of Cd, the lattice structure of Zn1-xCdxS changes from cubic to hexagonal, and the size of these nanoparticles varied within 6-40nm. Room temperature photoluminescence measurements show an intense red shift from 518nm to 662nm. And the band gap energies from 2.3 to 3.54eV can be realized for the Zn1-xCdxS nanopartices. Furthermore, it is found that the conversion of Methylene Blue (MB) using Zn0.6Cd0.4S as the photocatalyst was up to 97% after 2h of irradiation.

There is a close connection between urban forms and microclimates. Shaping an urban form with good climate performance is meaningful for sustainable development. However, there is a professional gap between the field of microclimate and urban form studies and the urban form design practice, which impedes the transformation of research achievements from the former to the latter and has an impact on the orientation of the research issues. This paper adopts a perspective of design-oriented formalism to construct a knowledge and research framework for the field. On the one hand, it presents the researches and knowledge in this field in a form that is easy to be understood by designers; on the other hand, it intends to reveal the design-oriented research path and issues.

In this work, Al/SiO2composite coatings were deposited on the surface of aluminum alloy through atmospheric plasma spray. The effects of SiO2volume in Al/SiO2composite powders on the deposition behavior were investigated. It was found that the deposition of the Al/SiO2composite powder became more difficult through plasma spray with the increasing of SiO2contents. There were reactions between aluminium and silicon oxide during the deposition of Al/SiO2powders in the plasma flame. The reactions were helpful to interface cohesions between aluminium and silicon oxide. Al/SiO2(60:40, 80:20) composites were more suitable for deposition and well interface cohesion through atmospheric plasma spray.

Focus on the reliable problem which cannot implement emergency decompression during the torpedo tube escape practice, it is important that analyzes the key point of the emergency decompression technology, put forwards three method: drainage-decompression method, stability drainage method, water and gas displacement method, and make the computational analysis and compare the pros and cons in this paper.