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With the development of information technology and popularization of LBS (Location Based Services), it is possible to observe the target trajectory of groups under large scale and real-time. In this paper, the flow influence is quantizedly researched by using the Registration data based on "Sina micro-blog" of Wuhan City Subway Line 2. It is proved that the micro-blog mobile check-in data obviously tend to distribute along the subway. As time goes by, the influence of subway on distribution of the crowd and on the range of surrounding areas gradually becomes stronger and greater. But the influence degree of the subway on its surrounding area is not uniform. In two-dimensional space, the greatest and the farthest influence of subway is on a city’s flourishing commercial region.

This study reports the application of an electronic nose for the identification and classification of red wines aged three different methods. The signals of the different wines detected by the 10 sensors present in the E-nose are significantly different from each other. The response to the signal generates a typical chemical fingerprint of the volatile compounds present in the wines. Principal Component Analysis can be applied for the dimensionality reduction of the collected signal. Since the total contribution rate of the first three principal components is up to 97.27%, different wines can be distinguished from each other by the three principal components. Euclidean distance, correlation analysis, Mahalanobis distance and linear discrimination analysis can offer 100% accuracy for known samples, and the accuracy rate can reach 88.9% for the 18 test samples. In addition, numerous advantages exist compared with sensory analysis in both authentication and quality control of wines.

Servo punch press uses a servo motor to drive. It can set different stroke length and velocity according to different production requirements, and can always ensure the formation precision of the bottom dead center. It has the advantages of high efficiency, high precision and low noise, and it presents the development trend of punch press. The key point of the servo punch press development is its control system. According to the functional requirements and technical performance of the servo punch press, the general approach of the servo punch press material forming control law is discussed in this paper. The development platform based on DSP control system has built up as well. By means of the Simulink and the Target for TI C2000 tools in Matlab, the dynamic model of punch press system and controlling model, including forming model, DSP-based controller model and plant model,etc., have been designed. Base on this, the forming characteristics of different materials, forming control algorithms have been studies through simulation and virtual experiments.The controller algorithm can be transferred automatically to the target controller. This approach can reduce developing time and costs of servo punch press control system and improve developing efficiency.

In the molding process of the tri-component composite spinning, the flow control of each component plays a significant impact on extrusion swell. This paper simulates the extrusion swell of the tri-component fiber in different flow ratio of different components based on Polyflow fluid dynamics simulation software, and measures the extrusion swell ratio of the tri-component fiber in different flow ratio of different components through the experiment. Simulation and experimental results show that by adjusting the melt flow ratio of the various components, we can obtain the desired extrusion swell ratio, which can improve the performance of the tri-component fiber.

The construction of UHV (ultra-high voltage) transmission lines has become an important part of the planning of “smart grid" and “solid grid” in China. This article elaborated in recent years the UHV transmission lines construction status and possible problems, has made a comparative analysis on the angle of environmental carrying capacity, and put forward three effective suggestions, in order to improve the construction efficiency of UHV transmission lines engineering.

Hydrochloric acid was directly adopted as water phase and catalyst to prepare the silica shell, hexane and Span 80 were respectively adopted as oil phase and emulsifier to prepare water-in-oil (W/O) emulsion. TEOS was adopted as the silica source, then the silica shell can be obtained through the sol-gel route at the interface of emulsion. The SiO2 inorganic medical capsule was obtained, and the morphology of samples experience from irregular to regular with the increase of both water phase and stirring rate. Stability of emulsion can greatly affect the morphology of capsule. Control of ratio of water phase to oil phase is vital to the formation of SiO2 inorganic medical capsule. Furthermore, schematic transformation model of emulsion droplet under different conditions was proposed.

A natural and environment friendly refrigerant propylene (R1270) is proposed as a substitute of R22 in the residential air conditioner. The experiments on the cooling performance of the air conditioner with R1270 and R22 were respectively conducted on an existing enthalpy potential bench, during the degree of superheating keep constant and refrigerant charge directly on the conditioner, also the effect on system performance in the condensing temperature was tested, it is founded that the cooling capacity of R1270 air conditioner was 96% that of R22 air conditioner while the COP of the former increased, and the refrigerant charge amount of R1270 was 56.8 % lower than R22.