Tiemin Liu

Statistical analysis on current status of China forest fire safety

In China, forests are a very rare natural resource. Forest fires happen frequently and the loss is very serious each year. In this paper, statistical data on forest fires in China are analyzed in order to reveal new features regarding the forest fire safety situation as the economy of China is growing. The causes of forest fires in China are also discussed. The classifications of forest fire hazard used to improve forest fire prevention and management in China are reviewed, and the current status of the fire researches in China is introduced.

The set-up of a vision pyrometer

The paper presents a new radiation pyrometer, a vision pyrometric device based on a commercial digital colour camera and SUNPRO software, which converts the calibrated commercial digital colour camera into a scientific instrument for temperature measurement. We introduce the calibration experiments and the principle of this vision pyrometer, and the application of the vision pyrometer is illustrated in the specific examples. The analysis shows that the vision pyrometer established in this paper is convenient and promising and will be able to realize real-time measurements of two-dimensional temperature fields.

Safety evaluation of engineering and construction projects in China

Abstract In this paper, we review safety evaluation of engineering and construction projects in China and introduce four safety evaluations that are mostly used in China: safety pre-evaluation (SPE), safety evaluation on project completion (SEPC), overall safety evaluation of current status (OSECS) and special safety evaluation (SSE). Furthermore, related legal and policy trends of safety evaluation in China and the future development are also discussed here.

The theoretical prediction analyses of the measurement range for multi-band pyrometry

In the applications of multi-band pyrometry, the coupled correlation of multi-channel measurement information is a distinct characteristic. Considering this point, in order to realize the non-distortion and effective measurement, the theoretical differentiation formula of the measurement range is put forward in this paper. It may estimate not only the temperature range, but also the emissivity parameter range for the specific measured surface. Then, the corresponding simulation results are given. For an exploited multi-band pyrometer, the theoretical estimations are verified through blackbody measurement experiments. Therefore, the analyses in the paper provide the necessary theoretical supports for the design and application of a multi-band pyrometer.

The Current Construction Status of China Emergency Systems Against Major Industrial Accidents

The emergency plan is a project drawn up in advance for prevention against the possible important accidents, assuring the rapid and effective emergency response and rescue actions, and reducing the accidents loss. In order to reduce accident damage, the Chinese government has taken many measures to improve its ability for major accident prevention and emergency management. In this paper, we introduce the basic emergency measures for major accidents and its future developments. The basic situations of work safety in China are analysed in Section 2. The construction of an emergency system for major accidents is presented in Section 3. The core elements of the emergency plan in China are introduced in Section 4, and the main regulations for emergency system construction are introduced in Section 5. The current research status of emergency systems in China is introduced in Section 6. Finally, the future developments of the emergency system against major industrial accidents are discussed.

The measurement coordinates for multi-band pyrometry

The purpose of this paper is to investigate the distribution characteristics of temperature and emissivity in the applications of multi-band pyrometry. We establish the concept of the measurement coordinates, including the temperature coordinate axis and emissivity coordinate axis. Through numerical simulations, we present the corresponding results. The discussions not only provide a simplified and effective expression of the solutions of multi-band pyrometry, but are also helpful to design or optimize a multi-band radiation pyrometer by investigating beforehand the distribution rules of temperature and emissivity in the measurement coordinates.