It employs the fire explosion danger index assessment method of Dow Chemical Company and makes the quantitative calculation and evaluation of the fire explosion fatalness for the Epoxy Chloropropane Production Installation of a chemical plant in the Harbor Industrial Area of Zhuhai. First, it introduced the evaluation procedures and calculation steps of the Fire & Explosion Index Method. The danger level from the Fire & Explosion was calculated quantitatively. According to the actual conditions, the danger coefficient and safety compensating coefficient of each unit were defined. Finally, the safety evaluation results of the unit danger analysis were obtained, and safety measures were given.

Mirco-nutrients exert significance impacts on fresh water plankton biomass. Through orthogonal experiments the promoting effects of typical micro-nutrients(P, Fe, Mn and Zn) on algae bloom organisms(Cyanobacteria) were are studied. The experimental results obtained show that the algae biomass had has a linear increasing relationship with the concentration of phosphorous (ranging from 0.04~0.32 mg/L). Algae growth rate was is promoted at with the concentration below Fe(0.05 mg/L) and Zn(0.01 mg/L), while it is was inhibited at with the concentration above Fe (0.1 mg/L) and Zn(0.04 mg/L). Manganese(Mn) showed has no regularity obvious influence on algae biomass and algae growth rate., It is possible to stimulate algae growth with concentration of Mn below than 0.05 mg/L or above than 0.1 mg/L. The results show that phosphorous had has no effect on algae growing cycle, while there is a direct proportion between the concentrations of iron, manganese and zinc and the lag phrase of algae. Mn and Zn show no impact on algae community structure, but high Fe is beneficial to Cyanobacteria.
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Taking the miscellaneous water plant sludge in the Guangzhou Universities Town Campus as researching object, experiment by anionic polymers（shortened form: AP）with bridging flocculation settlement, with online microscope camera technology and image analysis technology, study on the conditioning effect and the coagulation morphologic properties of the sludge under different dosage of AP and different pH value. The results showed that: (1) Adding 0.3 mg/L dosage of AP, the specific resistance of filtration(SRF) r drceases 2~3 times and the sedimentation rate v increases about 2 times; When the dosage of AP is greater than 0.3 mg/L, the conditioning effect will tend to mild; (2) The optimal dose of AP to the sludge which solid rate is 0.395 percent is 0.1~0.3 mg/L dosage of AP; (3) When the fractal dimension DV> 2, the dimension will increase with the increasing of the dosage, the floc will be denser, the fluid resistance will decline and finally the sink velocity will increase. More ever, DV<2, the dimension will decline with the increasing of the dosage, the interstitial rate will decline and finally the sink velocity will increase; (4) The water on neutral pH for conditioning sludge is lower quality than the water on AciditypH and Alkaline pH value.

In combination with projections of reinforcement in different directions, bending moments and calculation methods of triangle caps with threepile foundations are given in detail, and at the same time, based on experimental results and theoretical formula of concrete slab punching bearing capacity published in literature, some comments about corner pile punching code formula are made. The research serves as a further explanation of corresponding code specifications of triangle caps with threepile foundations, and it helps to promote the design of this type of foundations.
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It presented the acoustic property of doubledecked duct in Multifunctional Theater. It analyzed the muffling function of doubledecked duct to find out its role in the indoor acoustic comfort, using the indoor noise measurement data under different loads of air conditioning operation. It showed the acoustic design was satisfied by measurement result. Noise levels in each measurement points and times were different, but not significantly. As operating load enlarged, the net increase of noise was small. Then the muffling of doubledecked duct ensured the acoustic comfort of the theatre.

A group of freestanding 3560ZGu2 transmission towers of 60 kV lines was taken for the calculation. The finite element software SAP2000 was first used to analyse icing transmission towers of different heights, the critical cladding ice thickness of buckling transmission towers and the critical wind speed of buckling icing transmission towers were calculated, and the influence of maximum vertical distance and the ground type was quantitatively also analyzed. The research shows that the wind load is the chief reason for the instability and failure of transmission towers，and that with the increase of calling  heights，the buckling critical wind speed of icing transmission tower decreases while the ice thickness of buckling transmission towers is not in proportion with the increase.

It introduced the contour recognition algorithm used in carton samplemakers for identifying the outer contour of the graphics by comparing angles, including the identification of single contour and multicontours. Meanwhile, the raymethod was used to identify the inner contour graphics in the outer contour polygon, and the algorithm was optimized by the use of the dichotomy to avoid complex operations in the process of judgment. Finally, the implementation of the algorithm was analyzed. Compared to the traditional sampling, recognition of the outer contour can decrease the manufacturing errors and increase the manufacturing efficiency of carton samplemakers.

The concept and evolution of the discretetime sliding mode control theory is introduced. Three main design methods are summarized of DSVC. The current research on discretetime sliding mode control with timedelay is presented and analyzed. Finally, directions in which further research will go are discussed.

Because of the poor light adaptability of the robot vision system, the algorithm of SOM (Self-organizing Map) was applied to the color classification of the robot vision system, owing to its good capacity of clustering. The vision system  has the ability to learn and to adapt to the changes in the environment. The simulation results show that the vision system with the algorithm of SOM has improved the color recognition rate.
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It presents the design of a dualband righthand circularly polarized microstrip antenna for GPS. The antenna has two stacked patches，each patch fed by four orthotropic ports on the patch plane. The fourfeed network is designed to achieve dualband righthand circular polarization, the antenna being small. The integrated approach of cutting the antenna patch corners and adding stubs effectively improves the efficiency of the antenna radiation. HFSS was used to modulate and simulate the antenna, and a physical model was tested. The experimental results show that the simulation results and the testing results are in agreement, and that the antenna meets the application requirements.
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The thermal power generation technology, an environmentfriendly way to generate electricity, is a power generation technology by directly converting heat energy into electrical energy with the Seebeck effect. It analyses the heat transfer model of the semiconductor, the power generation module at different temperatures and the thermoelectric properties of the power generation system. It also explores the relationship between the relevant parameters at the time of the optimum performance of the thermal power generation system and provides a valuable theoretical basis for further studies.

Based on the Partition Webie Function, with the GT-Power and Chemkin software, a simulation test platform was set up for HCCI engines. The working process of singlecylinder HCCI test engines was simulated. Effects of internal and external EGR on Diesel HCCI Combustion were accurately researched. Experimental results show that internal and external EGR have different effects on Diesel HCCI Combustion and that the HCCI combustion phase can be effectively controlled if the factors of internal and external EGR are combined.

Two kinds of Nanofluids, used as recycle fluids for collectors with direct absorption of solar energy, were prepared by the “two-step method”. The photothermal conversion properties of the two kinds of nanofluids and their base fluids were studied, the temperature changing with the environmental temperature through the insolation experiment. The results show that Alnanofluids have higher rise velocity and insolation temperature than the base fluids and Carbon Nanotube Nanofluids, and that when the insolation temperature is stable, the insolation temperature of Alnanofluids is nearly 25 ℃ higher than that of the base fluids and 10 ℃ higher than that of the Carbon Nanotube Nanofluids. Thus, Alnanofluids show better photo-thermal conversion properties.

It conducts a comparative study of photometry on the bright stars and dark stars, using ePSF(effective-Point-Spread-Function) and Gaussian function. The stars in the 16 CCD images observed by National Astronomical 1 m telescope were divided into two types of stars, bright stars and dark stars according to the average luminosity, and each of the ePSF was calculated and used to measure the stars. The results reveal that the precision rate is higher if the ePSF of bright stars is used to measure bright stars, and the precision rate is higher if the Gaussfitting is used to measure dark stars. The ePSF has obvious advantages to measure the precision of bright stars while the Gaussfitting is better for dark stars, which shows that the morphological structure of the dark star is closer to Gaussian distribution.

Increasing transformation matrix of the error matrix equation XA′=B is defined. Based on increasing transformation of characteristics, the method of solving the problem, the existence and form of the solution for this type of equations have been presented. This research provides a research method to find out the rules of error-eliminating.
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or uncorrelated random vectors have many good properties. It is not enough to determine the uncorrelativity or independency just by virtue of its definition and intuition. First, it summarized the methods of determining independence or uncorrelated random vectors. It is important to avoid judging errors. Then, some examples were given, based on these methods. Finally, the expansion of these methods was proposed.

The upper bound of a special kind of condition number of matrix spectrum is researched and estimated. The research supplements the estimation of such condition number in corresponding literature.

Leary-Schauder theory is employed to study the existing problems with first order impulsive differential equations, and anti-periodic solutions for the equations are offered.

In most previous models of the location of solid waste transfer stations, only the  minimum cost was considered without taking into account the adverse effects on the surrounding  environment and residents. With regard to the characteristics of the collection and transportation system of urban life waste, a multiobjective model of site selection of solid waste transfer stations was establish, based on a reverse logistics network .It considered the minimum total cost, the minimum total distance between Pitch corresponding and the garbage collection transfer station, and maximized minimum distance between residential areas and Waste disposal centers. A multiobjective evolutionary algorithm, based on, was proposed to solve the problem. The optimal solutions to the model were derived by selecting the appropriate encoding method and genetic operators. A practical example shows the validity of the model and algorithm, and that this model can provide several efficient solutions in one generation, giving more comprehensive support to decisionmakers.

Recursive Cube of Rings(RCR) is proven to be the Cayley graph, known as a quite suitable interconnected network which possesses many good topological properties. The Cayley graph is obtained from the finite group. Firstly, a new group was defined. Then, RCR was proved to be the Cayley graph. Finally, necessary modifications to the way of marking the nodes in RCR were made accordingly.

With regard to the actual situation of the technological innovation service system in Guangdong Province, the evaluation index of the technological innovation service system was established. AHPfuzzy comprehensive evaluation was used for an empirical analysis of the service capacity of Guangdong Province Technological Innovation. The research provides a scientific basis for decision making to improve the service capacity of Guangdong Province Technological Innovation and to enhance the market competitiveness.

The ±1 000 V polypropylene (PP) electrets were prepared by means of the corona charging method. To compare the skin microstructure after the application of electret at different time points，the changes in the skin structure were observed after the application of ±1 000 V PP electrets on rat abdominal skin with the inverted phase contrast microscope. The results indicate that both the positive and negative PP electrets can change the microstructure of rat skin and the changes in the skin structure are basically the same. Therefore, skin stratum corneum can fall off in varying degrees after the application of electret for a long time. Electret can be used in transdermal delivery formulation to reduce the barrier function of skin and increase the drug permeation through skin. Compared with +1 000 V PP electret, -1 000 V PP electret has the delaying effect for a shorter time. 

The positive electret was prepared by the constant voltage corona charging method. After the application of the electret on rat skin for 2 hours, the skin was analyzed by differential scanning calorimetry (DSC). The results indicate that (1) there are three peaks at 65 ℃, 87 ℃ and 122 ℃ in the DSC spectra for control rat skin; (2) with the increase of electret surface potential, the peak temperature and peak area decrease as compared with control rat skin. Therefore, the biological effect of positive electret changes the space structure of lamellar lipid and protein, and increases the fluidity of lipid. Positive electret can enhance the drug transdermal delivery.