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Magnetic memory signals and hardness of 35CrMo tempered and quenched steel were acquired during tensile testing. The magnetic signals of 35CrMo steel increased monotonously with the increase of tensile stress before yielding, followed by sudden decrease with further increase of stress after yielding. The zero-cross point ofHp(y) varied during tensile testing, indicating varied position of stress concentration zones with the process of tensile testing. Vickers hardness of the stress concentration zones of 35CrMo steel was lower than that around it, which may be attributed to the residual stress. The relationship between zero-cross point ofHp(y) and Vickers hardness was considered.

The improved plane wave expansion method is used to investigate the effects of material parameters on the longitudinal vibration band gaps in thin phononic crystal plates. Both square lattice and graphite lattice are considered. Results show that the parameters playing the essential roles are the mass density ratio and the Young modulus ratio of the scatterers and the host materials.

Commercial logistics speed has the dynamic characteristics of the impact on supply chain. In order to establish the relationship between logistics speed and supply chain network decision model, accurately grasp the logistics effect on supply chain decision, an optimization decision model of supply chain networks with logistics layer weighting was proposed. The whole complex network model of hierarchical supply chain was established. The product pricing and logistics strategies and optimization decision were proposed for realizing the maximum total profit. The simulation results show that the optimal decision model is shown in small world property, and it can reflect the product consumption demand reality effectively, the total profit of the whole supply chain is significantly increased compared with the traditional method, and the network system is adaptive and robust.

Vibration band structures of thin phononic crystal plates (PCPs) with square array and graphite array of nitinol inserts are calculated by the plane wave expansion (PWE) method. The influences of filling fraction are considered when investigating the effects of the varying temperature on the band gaps. Vibration band gaps of these PCPs can be tuned by changing temperature. This study will be useful in designing PCPs with tunable gaps.

Plastic deformation resistance is a basic parameter of mechanics parameters in press work theory and technology. In this paper, the influencing factors of deformation resistance are analyzed and the model of deformation resistance is established. The deformation resistance can be calculated by program with Lagrange interpolation method. This result provides evidence for calculating mechanics parameters and designing metalworking equipment.

Farmland environment is away from power facilities and its information collection lasts long time. These characteristics make the wireless sensor networks in agriculture face the problem of energy constraint. Efficient routing and sleeping algorithm can save energy. Considering the node residual energy and the collection cycle of the destination nodes, this paper improved a WSN routing and sleeping algorithm based on the AODV routing algorithm. This algorithm establishes routing path based on the node residual energy and the node collection cycle. Node sleeping cycle determined after the routing path has been established. By routing path selection and appropriate sleeping cycle this algorithm can reduce overall energy consumption and avoid excessive energy consumption of some individual nodes.

In order to study the control problem of infrared heating shrinkage machine, i.e. Large delay,nonlinearity of the control system, one type of the basic organization and simulation principle of the hardw-in-the-loop simulation system are presented in the given paper, and the simulation model of infrared heating shrinkage machine is discussed. Aiming to solve the problem of traditional PID control algorithm is difficult to get ideal control effect, an adaptive PID control algorithm based on BP neural network is proposed. The object can be better online controlled and adjusted after the algorithm has been applied, meanwhile the requirement of accuracy and reliability will be improved, and quite a lot debugging time will be saved.The results show that the system basically satisfies the technical requirements and provides a good experimental platform.The study is provided with great significance for the realization of the semi-physical simulation system.

This paper introduces the related theory of sound waves , we collect the data through the acoustic wave sensors of the pipeline fault diagnosis system platform, decompose the signals to five layers by Mallat algorithm and wavelet function db4, compare the normal waves and leakage acoustic signal spectrum, and then get the power spectrum estimation for the decomposed signal at each level, we can see the signals energy feature in different frequency band. Feature extraction method based on wavelet transform can make the category of signal characteristics fully displayed in the different resolution band, it has a good application prospect in the field of acoustic signal processing.

With the rapid development of China's stock market, investment on the stock has become more rational and scientific and the analysis of the role of equity investments is also increasingly important. In this paper, we use 20 publishing and media companies' financial data from 2011 to analyze the profitability, solvency, growth and capital expansion capability with cluster analysis, and then use the Bayesian discrimination analysis to quantify the classification to inspect the results. According to the investment analysis of media section of stocks, we sum up the type and characteristics of the media section stock for the market to grasp each participant to provide effective long-term growth trend in the reference area.

For the soft rock roadwaysupporting problems, using the conventional methods cannot effectively controlthe deformation and failure. This paper took B103W01 transport gateway projectin Shajihai coal mine as example and analyzed its deformation failure reasonand deformation mechanism and determined the specific measures of transformingcompound mechanism of deformation mechanics into a single type. In the end, weput forward coupling support technology of constant resistance and largedeformation bolt + hollow grouting anchor + corner grouting steel pipe, whichhad been applied to engineering practice. The monitoring results showed thatthe supporting effect was good. So it can be used for reference for the similarconditions of roadway supporting.

Winter concrete construction is inevitable to cold winter in the north of China.Concrete antifreezing and frost are the emphasis and difficulty in winter construction.In the present work, the method of concrete construction in winter and the mixture ratio adjustment of concrete in storage method construction were introduced, expounds the concrete during transportation and pouring temperature control matters.

As the P2P technology brings an abundance of network shared resources and information services, P2P technology also brings a lot of bandwidth, intellectual property, information security problems. Against the problems, and studying technologies of P2P traffic flow monitoring, the paper presents an improved P2P traffic monitoring method based on advantages and disadvantages of current P2P flow monitoring methods. According to the test results, the system achieved well in the demand of control P2P traffic.

Based on the theory of ultrasonic vibration, a new type of ultrasonic atomizing vibrator (UAV) with a vibrating steel sheet was proposed. By using the finite element analysis software to simulation analysis and research for the new type of vibrator, the frequency and vibration mode of atomizing steel sheet was obtained and the prototype of vibrator was fabricated. The impedance and vibration displacement of the vibrator was tested and the experiment of the new type of vibrator was carried out, which verified the feasibility of the new type of vibrator design method.

On account of the problem that traditional pipe leakage diagnosis method is not highly accuracy .this paper come up with a method that based on pipe leakage diagnosis method of neural network information fusion. Giving the stress wave time domain feature extraction index data algorithm and wavelet packet extraction each the frequency band energy algorithm, by comparing with these results of the pressure wave time domain feature index data, time-frequency extraction energy values and fault diagnosis of both information fusion ,which show the neural network information fusion method that is used for pipe leakage diagnosis that is feasible and effective.

The dynamic simulation analysis method is adopted to investigate the dynamic damping characteristics of lathe tool with large length to diameter (L/D) ratio. The multi flexible body dynamical simulation model of dynamical damping lathe tool with large length to diameter ratio is built up according to the actual experiment lathe by using the software ADAMS and ANSYS. Simulation analysis of the multi flexible body dynamical model which has been optimized shows that the system damping performance is improved greatly. On this basis the relationship of rubber bush, mass body and vibration absorption cavity is discussed. And the result of the discussion indicates that the shape of rubber bush should be confirmed by repeatedly simulating the model.

According to the oscillation characteristics of the quartz crystal resonator and the relationship between its force sensitive property and stress distribution on crystal plate, the single-base multiple-electrode quartz crystal resonator is designed. The oscillation stability of the resonator with this structure is tested by using crystal frequency stability tester. The force-frequency property of the resonators formed by electrodes on different positions of the new structure crystal plate is studied by adding radial force on it. The experimental results show that when the new structure quartz crystal resonator works driven by integrated chip, its oscillation frequency stability can reach 10-8, with the electrode thickness increasing, the oscillation stability of the resonators improves. The force-frequency property of the resonator on the different position of the same crystal plate is different, and the force-frequency coefficient has an obvious difference. The total force-frequency coefficient of the newly designed single-base three-electrode quartz crystal resonator can reach 338.8Hz/N by using mix frequency process.

According to the stress distribution in the thin round-shaped quartz plate with radial force, multiple resonators are designed in the different positions on same quartz crystal wafer. The force sensitive property of the resonators in different positions is studied. The research result shows, the force sensitive property of the resonator is closely related to the locations and the adding force azimuth; the force sensitive property of the resonators in different positions have a significant difference. If making difference frequency process of the resonant frequencies which is produced by the resonators, the interfering factors of the temperature etc. can be inhibited; if making superposition and integration process of the resonators’ force sensitive property, the total force sensitive property of the resonator with the multiple-electrode structure can be improved.

Analyzing the crop growth status through leaf disease image is one of the hottest issues in agriculture and forestry fields currently. But the size of image gathered by digital camera is too large, the focus of this research is to zooming-out image at the condition of ensuring the main information which carried by the image to distort lower. Based on the further study of visual attention model proposed by Itti and Ma YF. This paper establishes visual attention and visual saliency map of rice blast and brown spot disease image, whose size is 4272*2878 pixels. Finally, determines the reduction scale of the corresponding effective target collection and provide a new way to reduce the plant leaf images.

A design method of ultrasonic vibration petrol atomizer vibrator was proposed based on one-dimensional elastic vibration theory. The model and harmonic analyses of the vibrator were performed by using the FEA software ANSYS. Experimental Study of the petrol atomizer was carried out and the atomization performance of the prototype was verified.

The direct roof of B132 coal seam is conglomerate layer in a coal mine, which is cemented with gravels and sandstones and has brought great difficulty for tunnel supporting. It is necessary to study the grain size and strength characteristics of gravel in conglomerate layer for the mining of B132 coal seam safely and efficiently. The statistics and analysis of grain-size characteristics of gravel was carried out in this paper, including of the quantity and volume percent of gravel. Uniaxial compressive strength of gravel was tested with point load method. The test results show that uniaxial compressive strength of gravel is very high, especially the black gravels, whose compressive strength is commonly above 200 MPa and the highest even can reach more than 300 MPa.

In clinic it is of very practical significance to optimize the entry point and pose in path planning. We proposed a reverse path planning algorithm adopting multiform combined paths based on the improved kinematic model of flexible needle, and the objective function is established. Utilizing the reversibility of the path, we started from the target to optimize the whole path including the entry point and pose. Then we optimally calculated and simulated in the environment with obstacles. Results show that this algorithm effectively makes the needle steer clear of obstacles to reach the target precisely, and gains the entry point and pose at the same time, guaranteeing the optimal path.

Texture mapping of plant leaf is a challenging task because of the shape diversity. Based on the barycentric mapping parameterization method, a novel algorithm is proposed. A suitable boundary mapping is computed by automatically extracting and matching the feature points on boundaries of the mesh and image. The matching process consists of two steps, which utilize the symmetry and curvature information respectively. Through iteratively minimizing a weighted energy, the inner constraints given by users in order to make the details clearer can be satisfied by the presented algorithm. Experiments show that this robust algorithm can produce plant leaves with fine texture details and increase the realism of the models.

To solve the problem that the conventional layered water injection technology has too long test and adjustment period and strong interference among layers at the ultra-high water cut stage, a novel digital synchronous dynamic test and adjustment technology is proposed and developed in this paper. Many advanced technologies, including digital multi-information test and adjustment, bidirectional transmission of remote wireless signals and non-contact electric energy transformation, are adopted to combine multi-information test and flow control to be a whole thrown into the well. This technology can automatically monitor each water injection layer and adjust water flow in user-defined period without any intervention; it can synchronously and dynamically adjust flow of each layer; and it also can monitor and adjust flow data by the redisplay of computer. The experimental results show that this technology not only reduces the field workload and improves water injection effect, but also provides the basis of data analysis for implementation and adjustment of meticulous oil development plan.

Logistic growth model is important for studying the increasing laws in limited space. In this paper, the container throughput of Wuhan xingang has been studied by using logistic model. Compared with the actual throughput, container throughput prediction using logistic growth model is in accordance with the real situation on the whole.