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Multi-point forming process has been developed to shape the sheet metal with bidirectional curvature. However, the forming force usually climbs too high so that the dimension of the forming machine should be designed to meet it. To solve this problem, the multi-point incremental forming (MPIF) process was proposed in this paper. First, the principle of this new forming process was introduced. Then, the experimental device was designed. Next, the MPIF process was simulated by a finite element model. The forming effects including displacements, thickness, and curvatures were visualized and discussed in detail. It was found that there is no obvious thickness change during the forming process. The advantage of this forming process is that the shape of the sheet metals adaptable and controllable with small forming force.

Aiming at the problem that individual control of urban traffic lights and stable signal timing. This paper proposed a real timing control method of traffic lights which based on Kalman filter. This method use Kalman filter to predict the next time traffic flows and then update the signal timing. By field researching the traffic flow of intersection in peak hour and predicting the traffic flow. Then update the signal timing. Meanwhile using the VISSIM to simulate the intersection. The result of the simulation shows that the length of vehicle queue decreased significantly and the number of stops dropped. The efficiency of access has been greatly improved.

Deproteinized calf blood extractive was bioactive components, including natural amino acids, small peptides, glycolipids, nucleosides and carbohydrates, extracted from calf serum. The main pharmacological activities of deproteinized calf blood extractives contained several vital processes, such as enhancing the uptake and utilization of oxygen and glucose, boosting the synthesis of adenosine triphosphate, promoting the transport of nutrients, facilitating the tissue repair and regeneration. In this article, from the review of the researches on the clinical application of deproteinized calf blood extractives, we concluded that it was worth on clinical promotion.

At present the majority of association rule mining algorithm only uses support and confidence to evaluate association rules, association rules which may contain a large number of redundant, meaningless, Introducing the concepts of hyper-graph and system and exploring to construct the hyper-graph on the model of three-dimensional matrix. According to the characteristics of Big Data, the new hyper-edge definition method is adopted combining the concept of system, thus improving the processing capacity.

This paper builds a model of QT4 for WinCE 5.0 development platform based on Visual Studio 2008 environment. It offers the campus tour navigation interface which is designed by using Qt Creator tools and code, and implements the transplantation of application in GEC S5PV210 development board which is applied to the actual project successfully.

In this paper, through the analysis of the characteristics of particle swarm optimization algorithm, combined with the specific circumstances of Bayesian network structure learning, proposed to based on improved particle swarm algorithm.The algorithm uses the BIC measure function as a standard Bayesian network, while preserving the optimal particle case, the possibility of a mutation operation is added to decrease the algorithm into a local optimum. Through a typical Asia network, show that the algorithm is feasible, and other related algorithm is better than the experiment, the effectiveness of the algorithm. In this paper, the algorithm is verified from two aspects of theory and experiments, the results show that the algorithm is feasible.

Ion chromatography (IC) method was applied to detection of fluorine in the atmosphere calm wind conditions at the area around the yellow phosphorus enterprise. The results indicated that the recovery of standard addition of Fluroide is 96.7%~100.6%. It gives a linear response of chromatographic peak height with respect to the fluoride in the range of 1~25 μg/mL, and the coefficient correlations R value is 0.9994. The concentration of Fluorine in the surrounding of yellow phosphorus enterprise ranging from 100~1500 m varies from 0.641~0.070 mg/m3. The relative standard deviation (RSD) of this method is between 2.10%~0.50%. This method is sensitivity and selectivity, low disturbance, and it is considered as a promising method for the detection of Fluorine surrounded yellow phosphorus enterprise.

Ball type joint is one of key component of automotive drive shaft, which is used in a front drive transmission vehicle for transmitting rotary movement from the gearbox output shaft to the wheels with a constant velocity. It has been found that the ball type joint is usually failure caused by abrasive wear. This paper is dedicated to analyze the abrasive wear by theoretical investigation on the relatively slipping velocity of each component of the ball joint, as well as the experimental approach. The results show that the grading of abrasive wear of the components is largely depended on the relatively slipping velocity.

An automotive drive shaft is used in a front drive transmission vehicle for transmitting rotary movement from the gearbox output shaft to the wheels with a constant velocity. The kinematics model of ball joint and tripod joint has been studied without consideration of clearance. This paper will propose a new model with consideration of the clearances on ball joint and tripod joint. The simulation results are given by using this model. The conclusions are made as well as the future work.

In this paper, a seventh-order elliptic low-pass active-RC filter with three finite transmission zeros is designed for the baseband filter of a 433MHz wireless communication terminal. While designing, the canonical signal flow graph (SFG) method is applied based on component-level simulation of LC ladder prototype circuit. The simulation and measurement results show that the filter satisfied the design specifications.

Energy consuming condition of thermal power unit is reflected by its historical operation data, but the amount of data and the number of energy consumption indices are large. And there are complex and strong correlations among them. These make it difficult to assess the energy consuming condition of unit. This paper proposes a model and method based on improved Principal Component Analysis(PCA) assessing the energy consuming condition of unit. Those assessment problems are solved well by the application of feature extraction and dimensions reducing functions of improved PCA. Meanwhile, traditional assessments’ drawbacks-subjectivity and uncertainty are avoided because the weights of components are determined completely according to the data. Finally, the feasibility and effectiveness of the proposed model are demonstrated with a case study involving energy consumption condition analysis of a 600MW unit in China.

Buddhist architecture which was introduced to China from India had become an important component of traditional Chinese architecture, and the characteristics of different regions had formed after the long-term development. This article starts from Shanxi’s location environment, analyzes the considerations of geographical environment of Shanxi temple construction’s site selection and the historical regularity of their distributioncombining with the site selection factors of traditional Chinese architecture. Thus, the general rules of site selection of Shanxi temples and its particularity of distribution are revealed preliminarily from the viewpoint of space and time.

Titanium alloys, as difficult-to-cut materials, have poor machinability due to their superior mechanical properties, heat resistance and corrosion resistance. High cutting temperature and great cutting force that will greatly accelerate tool wear often occurs in titanium alloys cutting process. In this paper, an ultrasonic vibration turning method was used to lower diamond tool wear during TC4 titanium alloy turning process. Ultrasonic vibration turning tests were carried out with various cutting parameters. Experimental results indicated that there’s a significant reduction of the wear rate of diamond tools by means of ultrasonic vibration in TC4 turning process. For ultrasonic vibration turning, spindle speed, the amplitude and frequency of vibration of the tool are the greatest impact of tool wear, followed by feed rate, then the cutting depth.

In order to improve the reliability of a planet carrier, a simulation method based on multi-objective design optimization was developed in this paper. The objective of the method was to reduce the stress concentration, the deformation, and the quality of the planet carrier by optimizing the structure dimension. A parametric finite element model, which enables a good understanding of how the parameters affect the reliability of planet carrier, was established and simulated by ANSYS-WORKBENCH. The efficiency of the design optimization was improved by using a polynomials response surface to approximate the results of finite element analysis and a screening algorithm to determine the direction of optimization. Furthermore, the multi-objective optimization was capable of finding the global minimum results in the use of the minimum principle on the response surface. Computer simulation was carried out to verify the validity of the presented optimization method, by which the quality and the stability of the planet carrier were significantly reduced and improved, respectively. The methodology described in this paper can be effectively used to improve the reliability of planet carrier.

Dynamics performance of the bearing and the reliability are largely depended on its clearance. The clearance of the bearing is determined by the assembly process, the initial setting clearance, the rotating speed, the thermo-expansion, etc. In this paper, the clearance of automotive hub bearing is modeled by analytical method. Then an illustrative example is given for demonstrating the effectiveness of the model. The fundamental study is the basic of dynamics performance of the bearing. Also, it can be used for analyzing the performance of bearing assemblies as well as optimization of the process.

Flying shear machine is widely used in continuous rolling mill production line, and its performance is largely depended on the transmission system. Here a model is established with multiple backlashes, time-varying mesh stiffness and error excitation to investigate the dynamics performance of the transmission system during the process. Also, effects of parameters are discussed. It’s believed that it will be helpful for the design of the flying shear machine

Dual-coiler is one of the most advanced coiling equipment designed for collecting strips in the rolling mill production line for the purpose of storing/transportation. The quality of the steel strip is largely affected by the tension force. This paper devotes to investigate the fluctuating tension force on the steel strip during the coiling process. The dynamics model of driveline is built for simulate the transmission error which is the main cause of the fluctuating tension force. In the proposed model, the time-varying meshing stiffness and damping, and the stiffness of strip are considered. A set of data are measured from the production line for evaluating the presented model. It’s believed that the proposed model can be used for improving the mechanical design of the machine.

The first-principle method based on the pseudopotential plane-wave is adopted to analyze O2 adsorption on the LaMnO3 (001) surface. The calculated results indicate that, LaMnO3 presents half-metal properties by calculating the band structure and density of states (DOS). In the MnO6 octahedron, the O-Mn-O bond is mainly covalent, on the contrast, O-La-O bond is mainly ionic. Molecular oxygen can adsorb on the LaMnO3 (001), M2 may be the most favourable adsorption mode. The adsorption mode leads to the formation of .The valence of Mn in the adsorption sites after adsorption of M1 and M2 is Mn3+0.25, Mn3+0.31, respectively. M2 may be the most adsorption mode that can make Pd 0 to shift Pd2+ more quickly in the process of direct synthesis of diphenyl carbonate (DPC) using the catalyst -Pd supported on the LaMnO3.

The qualities of the limestone conveyor system running directly affect the efficiency of circulating fluidized bed boiler combustion. Aiming at the problems of limestone conveyor system, this paper optimizes the design of the control system and the ring limestone fluidized bed boiler combustion control system networking, the use of configuration technology for real-time data control system to monitor and implement manual and automatic switching function. While improving the delivery system and improve the combustion efficiency of the boiler. For the circulating fluidized bed boiler combustion system provides a reference value.