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As a new method, the three-bench seven-step-excavation method is more and more adopted by the construction of large span tunnel in weak rock mass. At the portal of Yunyangshan tunnel, there is a long section of the mild clay stratum. Considered that the whole excavated cross section area is very large, the three-bench seven-step-excavation method was adopted. In order to investigate the surface settlements caused by the construction of twin tunnels, three typical cross-section were selected. At each section, the ground surface settlements were monitored. It is shown that the depth of tunnel and the construction time of twin tunnels have influence on the surface settlement curves, and the three-bench seven-step-excavation is effective in the mild clay stratum.

Alberta, known as the “Energy Province”, has abundant natural resources with the largest reserve among all other provinces in Canada. The mining rights in Alberta are mainly taken charge by the Alberta Energy and separated from land rights. The rights are divided into three forms-Permit, leases and Licence, and can be divided further into different kinds according to different mineral resources. The electronic information management mode is applied to the management of mineral rights, which offers a significant reference to the category of mineral rights, the management of energy minerals and the acceleration of mineral rights electronic computerization in our country.

The bus scheduling algorithm is researched and the algorithm is improved, the traditional bus scheduling algorithm has not fully considered the time-sharing distribution of passengers, the shift scheduling is not reasonable, resulted in the waste of resources, and the passenger satisfaction rate is low. An improved bus scheduling algorithm is proposed based on time-sharing passenger flow distribution and statistical prediction. According to the past period of time, the statistics record data are collected, and the passenger flow of each period and each line of the station are calculated. The required number of buses of each period time is determined, the optimal solution of energy saving buses scheduling result is obtained. The experimental results show that, the new method can consider the passenger flow distribution of each time, and it can greatly improve the full-load ratio of bus, the bus scheduling optimal scheme is obtained, it has good application value in practice.

The dam crack is a crucial factor in the safety running of a dam. It turns out that Shenwo Reservoir dam has plenty of gate piers with multiple penetrative cracks through our on-site inspection, which threatens the safety of the dam greatly. The causations of the gate pier cracks of concrete dam were investigated using three-dimensional finite element method (FEM). Possible causations to induce cracks were considered and a sensitive analysis was studied on temperature drop. The result shows that serious dam cracks are not possible to appear if the gate pier is under normal structural loadings, while the drop temperature and ice bulge from seepage water are the main reasons in northern cold region for concrete dam to have cracks.

Ionic liquids combine a set of proper ties like non-flammability, non-volatility, high ionic density and intrinsically high ionic conductivity; they also behave as good solvents for various chemical and electrochemical processes. These attributes make them appealing as alternative materials to replace conventional solvents, wherefore the interest in ionic liquid based materials for diverse electrochemical devices has boosted in the last few decades. The halogenated hydrocarbon and pyridine are used in the preparation of room temperature ionic liquid intermediates bromided N-octyl pyridine OPB, and the intermediate infrared spectrometer are used in chemical structure characterization, so it is determined that the product is the room temperature ionic intermediates OPB. Infrared spectrometer for the structure characterization is used, it is proved that OP-BF4 room temperature ionic liquid has been gotten. Both solvent polarity and acid alkali have an influence on ultraviolet spectrum diagram displacement of room temperature ionic liquid. If the ultraviolet spectrum diagram of ionic liquids and other solvent mixed solution is studied, it is necessary to indicate which solvent is used.

A new modeling method for the variable ratio gear of the rack and pinion variable ratio steering gear was proposed in this paper. It was based on the characteristic that variable ratio gear pair meshing tooth profile surface are the envelope surface of each other and established a variable ratio gear three-dimensional model by simulating the gear machining process in CATIA and using Boolean subtraction operation. According to the related test standard of the variable ratio steering gear transmission ratio, a test bench was design and build, and the correctness of this modeling method was verified by comparing the designed variable ratio curve and the steering gear sample designed and processed by this method.

According to the trend of the intelligent monitoring system, on the basis of the study of gait recognition algorithm, the intelligent monitoring system is designed based on FPGA and DSP; On the one hand, FPGA’s flexibility and fast parallel processing algorithms when designing can be both used to avoid that circuit can not be modified after designed; On the other hand, the advantage of processing the digital signal of DSP is fully taken. In the feature extraction and recognition, Zernike moment is selected, at the same time the system uses the nearest neighbor classification method which is more mature and has good real-time performance. Experiments show that the system has high recognition rate.

At present, distributed integration setting calculation mode is widely used in power system. However, there are cross and overlap issues in protection relay model splicing process. Deeply researched in the characteristic of integrated relay splicing, according to power system network topology, an intelligent substation locating method based on the repulsion tension algorithm is applied in this paper. Finally, an example is used to verify the feasibility of the method.

Diabetes mellitus, following cancer and cardiovascular disease, become one of the most serious diseases that threat to human health. The treatment of diabetes is imminent for the health of people. Thus, the developments of efficient insulin administration exhibit great practical significance. The glucose-responsive insulin delivery system (GRIDS) is developing rapidly which is expected to be a promising therapy approach to replace the frequent insulin injection administration. A novel glucose-responsive nanogel was conveniently prepared through one-pot copolymerization of pentaerythritol tetra (3-mercaptopropionate), poly (ethylene glycol) diacrylate, methoxyl poly (ethylene glycol) acrylate and N-acryloyl-3-aminophenylboronic acid. The successful incorporation of phenylboronic acid (PBA) in the nanogel endowed the nanogel high glucose sensitivity in phosphate buffer saline (PBS). Therefore, the PBA incorporated nanogel with high glucose-responsiveness and good biocompatibility may have great potential for self-regulated drug release

Recently, diabetes mellitus has become one of the most serious diseases that threat to human health and even life following cancer and cardiovascular disease. Thus, the developments of efficient insulin administration exhibit great practical significance. However, insulin, which could low blood concentration rapidly, cannot be oral delivery due to very low oral bioavailability for the pure absorption through the gastrointestinal epithelium as well as the rapid hydrolytic and enzymatic degradation in contact with the gastrointestinal fluids. While the frequent administration of exogenous insulin by injection everyday is not perfect due to the inevitable pain, which will cause inflammation, lumps and nodules. In recently, the glucose-responsive insulin delivery system (GRIDS) is developing rapidly which not only has high bioavailability of insulin but also extenuates the pain of diabetics caused by frequent insulin injection. GRIDS is expected to be a promising therapy approach to replace the frequent insulin injection administration. Therefore, the exploited intelligent glucose-responsive insulin delivery system has significant practical application for diabetes treatment.

Distributed protection relay value setting is widely applied in china. There is a graph chaos problem in protection relay model splicing process. Deeply study the characteristic of integrated relay splicing, combined with the substation voltage level, a substation locating method based on improved genetic algorithm is proposed. To enhance the graph splicing, a voltage level based method is applied. At last, a practical example is used to validate the effectiveness of the method.

With the development of information technology, the architecture of information system is more and more complicated. The domestic and international related research is still blank on monitoring and early-warning analyze on the complex information systems’ various operating parameters, no matter self-healing. Through this research, an automatically repair platform is put forward. It can analyze early warning to get the real fault cause and solve the problem or give the solution. It can greatly reduced respond time.

This paper produced a data caching system framework based on two-layer Chord. Caching is shared by users in domain and hot accessing information is shared by inter-domain users. It effectively reduces the caching system’s overhead. We also introduced cache replacement algorithm based on the user community, especially the user’s influence in the community and the information flow dynamics. The result of simulation and experiment of test-bed environment shows the caching scheme based on user community outperforms most existing distributed caching schemes.

One-way traffic blocking on four-lanes freeway was divided into three types in this paper, such as blocking on outside lane, inside lane and double lanes. Then one lane blocking was conducted under five kinds of volume and six kinds of blocked time, moreover two lanes blocking was conducted under seven kinds of volume and five kinds of blocked time, and the simulation conclusions were obtained respectively . The relationship models among blocking duration time, upstream volume and blocking time are established and tested. This study can be used to predict the duration time of the freeway blocking under certain volume or blocked time.

Textiles are necessaries of human life. The fiber content is index of textile quality and how to measure it has important meaning. A method for testing fiber contents in mixture textiles by near infrared spectroscopy (NIR) was researched. The near infrared Spectra of samples in the range of 4000 cm-1 - 10000 cm-1 were obtained. Noise reduction and compression of spectra data was done by wavelet transform (WT). The reconstructed spectral signals were established based on WT and the correction models based on back propagation (BP) neural network were built. Comparisons between the BP neural network models at different analysis scale and the model of partial least square method (PLS) were given. When the structure of neural network is 11-9-2 for cotton/ terylene mixture samples and 21-13-2 for cotton/wool mixture samples, the best accuracy and fastest convergence speed is achieved. Experimental results have shown that this approach by Fourier transform NIR based on the BP neural network to predict the fiber content of textile mixture can satisfy the requirement of quantitative analysis and is also suitable for other fiber contents measurement of mixture textiles.

Power user electric energy data acquire system is the important part of building a strong smart grid, and the communication system building is placed in the key position. Firstly, the application of wireless communication technology in the electric energy data acquire system is introduced in this paper. Secondly, the EPON technology is given. Lastly, a comparison of the two communication schemes is made in the ten aspects in detail, hoping that it is as a reference for the construction of power user electric energy data acquire system.

This paper conducts an experimental study on the variable modulus foundation for frame-tube structure. The base reactions are measured and its correlation with deformation characteristic is analyzed. The following conclusions are summarized: (1) soil cement (volume ratio is 1:4) is used to strengthen the foundation soil at core tube area. The ratio of moduli of foundation soils at core tube area and external frame column is 2.23. The vertical deflections of medial axis and diagonal are 0.08‰ and 0.1‰. (2) Under the working loads, the base reaction at core tube area is highest and distributed uniformly. The base reaction at the area between the core tube and the external frame column decreases gradually. The overall distribution of base reaction shows a basin shape. (3) The ratio of foundation modulus at core tube area and external frame column area is 2.35. The ratio of base reactions at these two parts is 3.31, which shows a good correlation with the foundation modulus.

We illustrate the design and implementation of the whole process of public service announcement in the paper by using the tools such as Animo 6.0, including: literary writing of the script, design of roles and background, the design of continuity, animation drawing, the processing and coloring of outline sketch, the synthesis of animation, the synthesis of sound and picture, and special effects, etc.

Distributed underwater sensor network coverage is divided into two main categories: deterministic coverage and stochastic coverage. A strategy is put forward to deploy determinate area by using a triangular-grid method. When a coverage ratio is known, the distance between nodes can be adjusted to meet the coverage ratio in the monitored area, and the least number of sensor nodes can be calculated. Also a heuristic method is proposed for stochastic area deployment strategy. It is under the premise that the initial node location randomly deployed is given, using Voronoi diagram, the not easiest monitored path is searched, and the network coverage performance is improved by configuring the new nodes in the path. Finally it is proved that network performance is more improved by the simulation experiments, when one to four nodes are configured in the easiest breach path.

ISO 14649, known as STEP-NC, is new model of data transfer between CAD/CAM systems and CNC machines. In this paper, the modeling based on machining feature is proposed. The machining feature comes from the manufacturing process considering the restriction of machining technology and machining resource. Then the framework for computer aided process planning is presented, where the algorithms of operation planning is studied. The practical example has been provided and results indicate that machining feature based model can integrate with CAPP and STEP-NC seamlessly.

In order to meet the requirements for using function of structure, openings are often needed to be laid out in shear wall, and the mechanical behaviors of the wall will be significantly influenced. The experimental analysis, establishment of simplified mechanical model and numerical simulation researches on shear wall with opening were reviewed, the research findings on shear wall with opening at home and abroad were summarized, and the seismic behaviors were induced and analyzed. The problems about seismic behaviors of shear wall with opening which need to be solved urgently were pointed out.

Composite foundation can be designed as long and short piles that lie on different bearing strata with high bearing capacities. Researches have shown that for foundation with sufficient stiffness, the ratio of the thickness of cushion to pile diameter (thickness-diameter ratio) plays an important role on the exertion of bearing capacities of pile and soil between piles. Traditional method just applies equal thickness-diameter ratio to design composite foundation with long and short piles, which hinders the exertion of bearing capacity of composite foundation. To overcome this defect, this paper studies the relations between thickness-diameter ratio and the exertions of bearing capacities of pile and soil between piles. The design method of thickness-diameter ratio for composite foundation with long and short piles is also proposed in this study.

Based on theoretical analysis and experimental result, the principle as well as the interaction between pile and soil, the design parameters of composite foundation with cement-fly ash-gravel piles (CFG piles for short) are optimized, which are pile length, pile diameter, pile spacing, pile strength and thickness of cushion layer, in order to put forward the reasonable design parameters for reaching economic and reasonable target. Through the optimized analysis, it is put forward that bearing stratum of pile tip should select a relatively better soil layer, the diameter of CFG pile is usually appropriately to select between 350mm and 500mm, it is usually appropriately to select larger pile spacing under the permissible range between 3d and 5d being ruled by standard, it is appropriately to enlarge the pile diameter to reduce the requirement of pile strength in high rise and super high rise building which requiring bearing capacity of single pile is high, and the thickness of cushion layer is appropriately to select between 0.4 and 0.6 times of the pile diameter.

The wavelet analysis has some important applications in image processing, including image compression, image de-noising and so on.Wavelet analysis for two-dimensional image compression is a key aspect in the field of its applications.This paper studied the application of wavelet analysis in BMP image coding, the characteristics of wavelet coefficients and wavelet subimage, these lay the foundation for further selection of wavelet coefficients and optimize, and analyzed the theory of EZW algorithm, illustrates the better results of the applications on using wavelet theory in image processing.

This paper makes an overview of the development of the wires for general purpose in aircraft,and an introduction of two types of prevalent wires today: XL-ETFE extruded insulated wires and PTFE/PI tape wrapped insulated wires. A performance contrast of these two types of wires is made from electrical, physical, environment resistance and weight aspects. A study on application of these wires in aircraft is also made, and finds the potential of the PTFE/PI tape wrapped insulated wires in weight saving and design optimizing.

his paper deals with the cooperative navigation problem of multiple autonomous underwater vehicles (AUV). A novel method which does not depend on a beacon network like in long baseline positioning system is proposed. The principle of this approach is to realize the cooperative localization of AUVs by using relative range measurements between the leader and the follower vehicles by means of an extended Kalman filter. Simulation results that validate the effectiveness of this approach are presented.

By analyzing and studying the most current algorithms about mining association rule, the rules evaluated by minimum confidence could not ensure the validity of the rules and will generate unrelated rules which will affect the intrusion detection work. This paper proposes CF measure based on the previous work and applies the association rule algorithm based on CF to intrusion detection technology to detect the intrusion behaviors in the network. Finally, experiments show that improved algorithm is more efficient.

Sensor nodes easily suffer from failure, attack or capture because of the limited energy, storage, communication ability, complex and severe network environment when WSN is applied to emergency or battlefield environment. Thus, the basic scout mission is influenced. In this paper, a survivability route protocol named SRPC in cluster-based WSN is put forward. The protocol uses key negotiation and identity authentication mechanism to resist the attacks of malicious nodes; when the main cluster head is destroyed, monitoring data will be transmitted to the base station by the backup cluster head chain. The simulation results show that, SRPC protocol can not only resist the attacks of the enemy malicious nodes based on energy balance, but also assure reliable delivery of the packets after the cluster head is attacked or destroyed. As a result, the survivable ability of WSN in battlefield is improved.

The Quality of Experience (QoE) evaluation for mobile streaming service over LTE network is essential for mobile networking development. However, few QoE researches for mobile streaming service focus on LTE network. Based on the research of QoE for mobile streaming service over other networks, this paper achieves the simulation for network transmission for different videos using H.264 format on the ns-3 LTE simulation platform. What’s more, exponential model fittings are performed for not only single Quality of Service (QoS) parameter and QoE, but also multiple QoS parameters and QoE. Simulation results show that the network parameters and the Mean Opinion Score (MOS) of QoE have strong exponential relationships for streaming service over LTE network.

During the research of the abnormal flowing of funds, the real financial transaction data warehouse can't be obtained for various reasons. In order to construct the data warehouse needed by this research platform, the paper provides an implementation approach using intelligent Agent software to act for the real roles to solve the problem. From the analysis of the simulation results, the data provided by the simulation method in this paper is feasible.

This paper proposed a new OLAP model and a cube coordinate cell algorithm. This algorithm can quickly and accurately calculate the coordinates of the cube cells and quickly find the appropriate data.

A design of image data cache system based on Nios II/(s) high performance soft-core processor is presented in our study. The FPGA, the image acquisition chip, the Nios II/(s) high performance soft-core processor, were selected together with the memory constitute the designed system to realize the prospective function. The principle of each specific function module in our study was discussed and analyzed, and the design of software and hardware were more perfectly. We found that the designed system presented an excellent generality, feasibility, reliability during the test course, which can be used in integrated sensor networks for environment and tracffic monitoring in urban areas.

This paper presents the concept of defect classification model, which is based on the technology of similarity. Defect classification model can analyze software defect more efficiently and provides the basis of solving problems quickly. This paper applies this model to GUI project and gives a GUI defect classification model based on large number of interface defects. Experiments show that the model is useful to improve the process of defect management and be used for test planning and implementation.

Laser-Arc Hybrid welding technology was first introduced by English scholar W.M.Steen in 20th century 70s, developed very rapidly. In order to study the effect mechanism of laser and arc,This paper presents a control strategy,the strategy can collect welding electric information, high speed photos and spectral information synchronously. By using the Labview software, industrial computer, data acquisition card, a high speed camera, spectrometer, synchronous multi-information acquisition system of welding has been established.the system has been used for the hybrid welding experiment, the peak value, base value and platform value of the laser-arc hybrid welding has been collected. Laid the foundation for further diagnosis of laser-arc in a variety of state.

The paper introduces the research status and progress of domestic and overseas researches on the effects of heavy metal ions on activated sludge microorganisms. The analysis of the research results show that the effects of heavy metals on microorganism vary with metal type, form and concentration.

Poly (trimethylene terephthalate) (PTT) /cellulose acetate butyrate (CAB) blend fibers were prepared through melt blending and spinning in this paper. The mechanical properties, dyeability, and hydroscopicity of PTT/CAB fibers were studied. The results indicated that the tensile strength of PTT / CAB blend fibers reduced slightly and the elongation at break increased with CAB content rising. And the dye uptake and moisture absorption percentage of PTT / CAB blend fibers increased as more CAB was added, i.e., in some degree, CAB added improved PTT fibers dyeability and hydroscopicity.

For the geo-grid reinforced retaining wall, the reinforcement mechanism of seismic behavior is unclear, and there is no reasonable standard for seismic design. A non-linear finite difference method which is based on Lagrange method was applied to analyze internal reinforcement force of geo-grid under different design parameters. The elastic-plastic model is simulated to backfill soil and foundation, and the coupled elastic parameters are used to describe the interaction of soil and geo-grid. The design parameters include geo-grid reinforcement spacing, reinforcement length, backfill soil stiffness, and thickness of panel. Some distribution characters and sensitive parameters to the internal reinforcement force of geo-grid were achieved, which will be helpful to the seismic design of geo-grid reinforced soil retaining wall with integral panel.

A process evaluation system for pulsed gas metal arc welding (GMAW-P) based on the LabVIEW platform has been developed. This system is comprised of two modules, a simultaneous display module and a data analysis module. Using these modules, the system can not only provide a comprehensive direct viewing display of the welding electric signal and high speed camera photo, but also can analyze the characteristic parameters of the welding process. The results show that the system works properly.

This paper proposed a new distributed peer to peer simulator. The simulator uses message-based event-driven engine with large-scale simulation supported and Cross-platform. Simulator supports multiple protocols, using this simulator test peer to peer agreement, not only to ensure high accuracy, but also effectively reduce the resource consumption and improve the efficiency of the simulation.

This paper proposed a new structural overlay model HKad. This model employs layered structure, and when constructing the network logical topology of peer nodes, it can detect rock-bottom physical network logical topology fast and efficiently and make it suitable to the rock-bottom network environment, and make the former be consistent to the latter as much as possible and then improve the whole performance of the systems. The goal is to construct a topology-aware overlay network, and improve the finding speed of information, and reduce unnecessary data transmission in networks.

The solving process of the hyperbola function method is introduced in this paper. By using hyperbola function method, the analytical solutions of nonlinear wave equation of a finite deformation elastic circular rod and the variant Boussinesq equations are studied. The more physical specifications of these nonlinear equations have been identified.

Different error requirements on different surfaces are necessary in many situations. If the registration between the measured dataset and the nominal surface is performed ignoring these differences, an inaccurate result could occur due to the surfaces which have low precision. An improper registration even results in false verdict. So the differentiated registration is of significance in precision engineering. In this paper, a new registration method taking into consideration of the different error requirements is proposed. Firstly surfaces are classified based on different error requirement. Then, appropriate weight factors are iteratively given to these surfaces. Based on the change relationship of error and weight factors, the algorithm controls the error distribution by optimizing the weighted least squares. Our method has the great flexibility in distributing the error, which is suitable for engineering applications. The experiment demonstrates the validity.

Calculation and fitting of variogram is a very important problem in the study of geostatistics. With the need of practical application, variogarm with multiform definition has appeared. But, the study of variogram is mainly focus on the calculation and fitting of theoretical variogram, and less on the experimental variogram, more a lack of research on the automatic calculation. There is little research on experimental variogram. To strengthen the study of experimental variogram is the future trend of development.

The error modeling compensation method for improvement the machine tools accuracy has been extensively used in the past decades. To unify the multi-error model for four types CNC machining center, the comprehensive multi-error model of TXYZ type machining center was established based on the homogenous coordinate transformation. According to the analysis of the transmission chain, a unified multi-error model for four types machining center was established based on the Singular Function. Using the unified multi-error model, the mathematical model of four types machining center can be standardized. It is very important for unceasing development of error compensation technology.

In this paper, a new kind of Multi-model Predictive Controller (MMPC) is presented. Multiple models switch MMPC with Kalman filter based on neural network optimization was implemented in a DC/DC converter. Multiple models direct switch was used according to the two modes of the Boost-Buck circuit and different loads condition. Kalman filter was successfully added to the MMPC to transfer the optimal state value to MMPC from the output of the DC/DC circuit. Parameters optimization method is also discussed in the paper when the controller was applied to real model simulation. Simulation result demonstrates that the good performance of MMPC compared with single model predictive control and PID control. With the help of high speed FPGA, it is possible to apply this method to hardware simulation.

This paper focuses on the home-country factors determining the rapid growth of China's ODI and provides empirical evidence based on 66 countries panel data over 1991 to 2010. First, we expand the investment development path (IDP) theory by including financial factors to establish benchmark model. Then, we explore whether China's net ODI flow is excessive or insufficient by adding China dummy. Finally, we examine the special factors driving and hindering China's ODI by introducing interaction terms. The results reveal that China's ODI level is insufficient. The economic development, export and international reserve drive the growth of China's ODI, while crowing-out effect of domestic investment and poor financing condition are obstacles.

Combine harvesters are widely used in agricultural production. Keeping the palstance of combine threshing cylinder constant when the combine works normally has important implications, through which can improve the efficiency and guarantee the quality. In this paper the Foton Lovol GF40 combine is used as the controlled object, then a constant palstance control system is designed based on STM32, and the control program is also designed based on the fuzzy PID algorithm. The control system can receive the signals of feed quantity and cylinder palstance, then drive the HST system and change the walking speed according to the change of the signals received, thus to control the cylinder palstance. Field trials verify the feasibility of the system, show that the system has a certain stability, which can achieve the desired effect.

We have developed a novel planar interdigital sensing system: using a microcontroller and local fabricated circuits with dual supply and signal processing for data acquisition. The first prototype is called seafood inspection tool or SIT consist of a SiLab C8051F020 microcontroller, a signal processing circuit, novel planar interdigital sensor, an expansion board and dual power supply circuit. A user friendly software was also developed to make SIT easy to be used by users who has a little technical knowledge. SIT was developed to be tested by the fisherman who can do a pre-screening process of the mussels at their ranch site.Our main objective is to sense the presence of dangerous contaminated acid in mussels and other seafoods.

The third-party damage is the main factor of Daqing-Harbin oil pipeline failure. This paper analyzes a variety of factors causing the third-party damage, and establishes the fault tree model. By analyzing the minimal cut set and structures importance degree of fault tree, the main factors of the third-party damage that caused pipeline failure are determined. The main factors are as follows: Lack of pipeline conditions, human vandalism, the frequency of line patrol and management systems, lack of public education and the legal concept, and construction operation injury. On the basis of analyzing the factors, the precautions of the third-party interference are proposed.