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Firstly,this research report analyze the environment of China urban public transport development and problems of urban transport development, based on showing urban public transport development in China in recent years,reflecting the characteristics of urban public transport development level;Thirdly,the Chinese Government taken the important initiatives in traffic congestion and the urban public transport development;And get the urban public transportation development strategy under the new situation.This report covers bus and trolleybus, urban rail transit and urban public transport areas.This research report provides information of China Public Tansport development to public, supports urban transit policy-making process and the administration for the industry, as well as research purpose and enterprise development.

Nimonic 80A Ni-base superalloy can be used for high temperature steam turbine components.There is a critical requirement for turbine blade application that the stress rupture strength for 105 hrs at relevant high temperatures should be higher than 100MPa.On the other hand, it must keep good structure stability and no harmful phase such as-phase and the TCP phase formation at long time high temperature exposure. Therefore, the long time stress rupture tests at temperatures of 600, 650, 680 and 700°C for different stresses have been carried out. The long time structure stability has been also studied in detail. The results show that Nimonic 80A can meet the critical requirement for USC steam turbine blades at 600~700°C. Any detrimental phases have not been found at the long time stress rupture tests. The morphology of grain boundary carbides also has no apparent change. Based on above mentioned results, Nimonic 80A is recommended to be used for USC steam turbine components in the temperature range of 600~650°C.

Thermal barrier coatings(TBCs) has been extensively used on hot section components of gas turbine engine, especially turbine blades. Young’s modulus of TBCs is a significant mechanical parameter in life prediction research of turbine blades, but it is hard to measure the EB-PVD thermal barrier coatings by conventional tensile/compression method for its brittleness and porous microstructure. Therefore, Young’s modulus mathematical model of double-layer beam structure specimen was deduced on the basis of the first-order beam bending vibration equation and composite beam bending equation. An experimental platform with dynamic signal acquisition system was set up for measuring Young's modulus of thermal barrier coatings under high temperature. Young's modulus of ceramic coat was measured from ambient temperature to 1100°C to provide material data for subsequent research on life prediction of turbine blades with thermal barrier coatings.

The effect of ca on the as-cast microstructure and electrochemical performance of AZ31 anode was investigated. The results show that addition of Ca to AZ31 anodes can result in not only grain refinement, but also a change in both morphology and volume fraction of the second phases. And grain refinement by Ca addition can be explained by the GRF mechanism. 0.4%Ca addition to as-cast AZ31 anode can increase the effective current capacity and current efficiency, and meet the requirements of magnesium sacrificial anode, but open circuit potential is lower than the nation standards. AZ31-0.4Ca anode will have a broad marketing application prospect.

Waste pollutions and disposal problems of transformer substation in electric power industry were paid more and more attention by people. Waste transformer oil contained many kinds of toxic substances. Transformer oil belongs to hazardous waste according to the definition of the United Nations Environment Programme (UNEP) and the National Hazardous Waste Inventory in China. The related research on environmental pollutants in waste transformer oil was less. The composition and content of particular pollutants which is harmful to human health and ecological environment in waste transformer oil was studied in this paper. Gas chromatography-mass spectrometry was chosen to detect the organic pollution composition and content of particular pollutants in transformer oil, based on investigation and analysis. Transformer oil samples running different time under 10KV voltage level were detected. The test results showed that with turbidity of oil rising, the content of polycyclic aromatic hydrocarbons in waste transformer oil increased, while benzene content changed in the opposite trend. Complex composition, different origin and different operating conditions were the reasons of difficulty to separate organic components in transformer oil during detection. This study is helpful for safe disposal of waste transformer oil. And it also can provide some theoretical support to eliminate the harm of the polycyclic aromatic hydrocarbons and benzene series.

Composite insulator was widely used in the power grid because its excellent performance. Aging issue of composite insulators was appeared with the long-term operating. The internal structure of silicone rubber may be changed with the broken of macromolecular chains of silicone rubber, because long-term operating in the environments of surface discharge, ultraviolet, pollution and other harsh conditions. In order to study the aging characteristics of composite insulator at the different operating life, the components and thermal stability were analyzed using fourier transform infrared spectroscopy (FTIR) and thermal gravimetric analysis (TGA) respectively. The results of FTIR showed that silicon rubber composition in composite insulator changed slightly with different operating life, especially in the internal surface. However, the absorption peaks of Si-CH3 and Si-O-Si on external surface of the insulator were decreased obviously with operating life longer. The thermal gravimetric analysis results showed that the thermostability of composite insulator was almost not changed with different operating life. The temperature of 5% weightlessness was between 320°C to 335°C. It illustrated that the composite insulator had a good thermostability at room temperature and qualitative change wouldn't occur for a long time laying aside. The study of the aging characteristics of composite insulators will provided the reference for performance evaluation of running composite insulators.

A comparative analysis of the surface-layer microstructure of a tungsten-based cermet alloy modified with pulsed high-energy electron beams generated by gas-discharge plasmas and of the tool life of metal-cutting plates prepared from this alloy is performed. The choice of a plasma-forming gas providing for the emission of electrons out of the plasma-filled cathode is shown to have a profound influence both on the formation process of nanosized structural-phase states in the surface layer of the cermet alloy and on the tool life of the metal-cutting plates prepared from this alloy.

Fixing Diesel Particulate Filter (DPF) in diesel is an effective measure to solve the particulate emissions. As PM is accumulated in DPF constantly, it will increase diesel exhaust resistance and affect diesel performance. Through building the exhaust resistance test rig and diesel test bench, the thesis studies the effects of particulate matter loading in DPF on diesel exhaust resistance and diesel performance. The results show that it is the most effective to conduct silicon carbide filter’s thermal regeneration when particulate matter loading is 8g/L.

This paper presents a path-planning method of laser tool in 5-axis laser quenching for complicated surface. In this method, two main factors are concerned which include: (1) Planning the CC paths on the complicated surface quenched to maintaining laser tool scanning speed constant easily in quenching process; (2) Diminishing the chord deviation between the actual value and its approximation by choosing different interpolation methods according to the curvature radius of CC points which is being quenched. This method effectively ensures the part’s laser quenching quality.

Because of good and fine printing quality, screen printing is very common technology in printing and dyeing factory recently. Developing is important to insure the screen printing quality. In this paper, a developer structure is designed and studied. Fluent software is used to analyze the developing process. In this way, the numerical model of nozzle is founded. The jet flow fields of different structure fan-type nozzles are analyzed and compared. Depended on the simulation results, the right nozzle is chosen and used in the developer structure, and the structure of developer is modified to fit the cleaning quality required. The experiment of new structure developer with the chosen nozzle is done, and the experiment result shows better cleaning quality with the new developer and new nozzle.

Concrete filled steel tubular structure is a new type of composite structure, widely used in monolayer or multilayer industrial workshop structure column, frame column, all kinds of equipment support and super high-rise building and bridge structure, connection pipe attracted more research on its theory and experiment at home and abroad on the concrete force has carried on the preliminary summary, analysis of the advantages and disadvantages of concrete filled steel tube of various existing connection mode, and illustrates the current situation of domestic and international research on concrete filled steel tube are connected, and finally puts forward some problems in the study.

In order to study the feasibility of the automatic diagnostician based on the images of palm, the general framework of automatic diagnostician is designed. It is implemented after analysis of the process of image recognition of palm images by computer and the main research content of each functional module is pointed out. Using the method of image processing, some palm images are collected by scanner. After proper preprocessing, images of palm's clear borderline can be acquired. The design of the philosophy system and images preprocessing have positive significance to the development of automatic diagnostician.

In the energy efficiency evaluation of renewable energy, in order to confirm the application of solar hot water system of building practical application effect, on-site testing is needed for solar water heating system. During the short term test, in order to improve the testing progress and to reduce the input, the relevant standard proposes the "solar radiation interception method". This paper mainly contrasts and analyzes the results deviation of "solar radiation interception method" in the actual test application. It also improveds the testing methods and testing precision.

Mechanical devices combined with computer vision technology can be used for automatic grading for carrots and other slim fruits and vegetables. We design the mechanical device for carrot intelligent grading machine, which is mainly composed of three parts: two-stage spacer device, chain roller conveyor and linear motors sorting fruit devices. Equipped with staggered grid conveyor belt with baffles and differential belt, the spacer device realizes primary and secondary fruit uniform, which can achieve precise single fruit conveying. The roller conveyor drives carrots rotating into CCD camera field one by one, which catches comprehensive carrot shape features that help precise grading. After receiving the grading signal, the linear motor puts carrots into corresponding boxes of different levels through the U-shaped catheter, which pushes carrot smoothly, efficiently, and with low damage rate.

With the development of production and technology, the devices of oil refining, chemical, fertilizer and others are progressing to the direction of high parameters (high pressure, high temperature). Pressure vessels must be open, which will made the stress concentration problems more serious, and traditional design methods derived from empirically formula fails to meet the actual demand. In this paper, a theoretical result is calculated with a simplified model of the opening holes in cylindrical shell, verified by a group of solutions got by the ANSYS simulation. And it turns out that the result is rather satisfactory.

The covering pipe-ear is one of the important components of the overhead contact line system (OCS) for supporting loads. The finite element model of covering pipe-ear was established, as the pre-tightening force, wind load and ice load all have effect on it, the stress distribution law were simulated under 12 kinds of loading conditions. The results show that the pre-tightening force has remarkable influence on covering pipe-ear and 2500N pre-tightening force is appropriate for the aluminum alloy covering pipe-ear. It is useful for the catenary components static strength reliability design.

This paper built a multi-objective optimization model and proposed an improved multi-objective particle swarm optimization algorithm called MPS2O ,which is based on Multiple Particle Swarm Co-evolutionary. The MPS2O algorithm has considerable potential for solving multi-objective optimization problems. Mathematical benchmark functions also shows that the proposed algorithm is an excellent Alternative for solving multi-objective optimization problems. Making full use of the research findings home and abroad, MPS2O has been chosen to be the coverage optimization strategy of the wireless sensor networks in Water Environment Monitoring System. Simulation results demonstrate that the MPS2O algorithm is more efficient than the PSO algorithm in solving this real-world problem.

Basic Artificial Fish Swarm(AFS) Algorithm is a new type of heuristic swarm intelligence algorithm but optimization is difficult to get a very high precision due to the randomness of the artificial fish behavior.This paper presents an extended AFS algorithm, namely the Cooperative Artificial Fish Swarm (CAFS),which significantly improves the original AFS in solving complex optimization problems. In this work,firstly,CAFS algorithm is used for optimizing six widely-used benchmark functions and the comparative results produced by CAFS, Particle Swarm Optimization (PSO) are studied.Secondly,K-medoids and CAFS algorithm is used for data clustering on several benchmark data sets.The simulation results show that the proposed CAFS outperforms the other two algorithms in terms of accuracy,robustness and convergence speed.

An optimal design method for the qusai-static folding and deployment of opposite tape-spring flexure (OTSF) hinges is presented based on the response surface method. The full factorial method is employed to design of experiments, and the qusai-static folding and deployment nonlinear analysis is obtained by ABAQUS/Explicit slover. The surrogate models of the OTSF flexure hinge are derived by the response surface method. Considering lightweight and high stability, the peak moment of quasi-static folding and deployment, and maximum Mises stress in complete folding configuration as well as mass are set as the objectives to get the optimal performances. The modified NSGA-II is used to seek for an optimal design. The relative errors of the objectives between the optimal design and the FE analysis results are less than 3.5%.

Based on the requirement of reactive power compensation of the intelligent power grid, a new type of capacitor switch design is presented. Starting from the characteristics of switching devices, research on the working timing between impulse switch and thermistor, build the controller hardware system based on ARM core, implement of power system parameters’ collection, capacitor switching control and human-computer interaction, etc. The embedded LINUX operating system is proposed for a better solution to multi-task, real-time and upgrade requirements in power intelligent control. At the same time, switching algorithm based on fuzzy control theory is adopted to improve the reliability of this switch.

In this paper, the basic principle and design procedure of the quantitative feedback theory (QFT) are summarized, then control system of a UAV is designed with the QFT theory. The QFT theory can solve the robust design problem of the UAV control system due to the model parameters uncertainty perfectly. And a method of robust design for UAV is put forward from engineering application perspective. Compared with traditional control method, the simulation result shows that the control system designed by the QFT theory not only has more perfect control effect but has significant value in the engineering application.

This research points out the negative effects given by malware attacks first, then put forward that the botnet is the major threaten to the network security especially the new hybrid P2P based botnet. The research mainly focuses on introducing the mechanism of this new type botnet and proposes the defense method in order to construct a safe network platform.

According to the existing problems of driving equipment for belt conveyor, a novel design scheme of controlled transmission which uses hydraulic transmission system driving worm gear to control the output speed of planetary gear mechanism is proposed. The control strategy of multi-motor drive power balance which adopts master-slave structure is designed. The master driver adopts speed closed-loop control with current limiting and the slave drivers adopt power closed-loop control. The given power signal of slave pulley is decided by the master motor. The control system offers multiple communication interfaces which enable the belt conveyor to integrate in coal mine information platform and realize information resource sharing. The controlled transmission device and its power balance control system have characteristics of compact, reliable and high efficiency.

Microbiological corrosion to the aircraft fuel system caused by microbial growth and reproduction in aviation fuel may also lead a serious safety risk to aircraft. Categories of microorganism in aircraft fuel tanks,reasons and protection methods of microbial corrosion were summarized and the research of microbiologically influenced corrosion protection which connected with quaternary ammonium germicides was prospected in this paper.

This paper proposes the dynamic design method and process of a CNC lathe-bed structure based on ansys. The lathe-bed is an important part of lathe. Structural natural frequency as the objective of optimization, with the element structure and frame structure optimization result as the basis, and with a vertical machining center lathe as an example, we put forward some improvement scheme of the bed structure, and makes a comparative analysis of each scheme.

A new type powertrain system architecture for city electric bus was introduced, which combines the function of Extended-Range Electric Vehicle (E-REV) and Plug-in Hybrid Electric Vehicle (P-HEV). Five driving modes were designed and its dynamics were analyzed. Numerical method on dynamics was proposed. The dynamic performance parameter of five drive modes were calculated and analyzed. The results indicate that the dynamic performance reaches the limit value at full drive mode and meet the requirement of city bus.

Sediment was important storeroom of pollutants and acted as the"source"and the"sink"role [1-2]. Phosphorus not only was a important biogenic elements but also a major limiting factor of water eutrophication.Primary productivity of water bodies was effected by phosphorus migration and circulation in interact of sea-land[3]. As we all known,crustal abundance of iron was 6.71% and ranked fourth, it was trace elements that played an important role in activities of human life, meanwhile ,growth of planktonic algae was limited by iron. Iron has a strong absorption features because of its oxide surface features .Circulation and transformation of phosphorus were effected by geochemical cycling of iron[4-6]. Studies have shown[7-8]that total of phosphorus and iron can be used as an important indicator what evaluated the degree of pollution. Released phosphorus of sediments was an important factor that effected nutritional status of water bodies. TP through physical,chemical,biological effected were combined with andiron and other minerals. So, determinating TP and TFe of sediment and analyzing its relevance were very important, it could further reveal the pollution status of water and analysis the pollution trends .

Attached type lifting scaffold is an important engineering machine which is used for building construction. In this paper, the strength of door-type structure of attached type lifting scaffold is studied. The diagonal brace is removed in the new structure and replaced with two short braces. The two type structure elastic FE models are founded and ANSYS software is used to compute the stress and deformation. The results are compared. The comparison study shows the new structure’ strength and stiffness are both better than the old one. Therefore, the new structure of door-type frame is much better than the old structure not only in cost-saving but also in easy through.

In this paper, a novel method for face recognition, called two-dimensional weighted and locality preserved discriminant analysis (2D-WLPDA) is proposed. The new algorithm is developed based on three techniques: (1) locality preserved embedding, by embedding nearest-neighbor graphs which characterize the within-class compactness of the same class samples, 2D-WLPDA discovers the submanifold of images space; (2) image based projection which can avoids the small sample problem and improves the computation efficiency;(3) weighting contributions of individual class pairs which alleviates the overlap of neighboring classes in Fisher criterion for a k-class problem with k>2. We experimentally compare 2D-WLPDA to other feature extraction methods, such as 2D-LDA, 2D-PCA and 2D-DLPP, 2D-WLPDA has better recognition performance.

The finite element method has been applied to calculate the 50Hz electric fields nearby the transmission lines. The electric field strengths nearby multi-circuit transmission lines on the same tower under different arrangement of phase sequence, nearby the cross-arm are calculated. According to the foreign and domestic security standards of 50Hz electric field, the impacts of overhead transmission lines on environment are evaluated and the adoptable measures to reduce electric field strength are proposed. Meanwhile the distributing pattern of the electric field nearby the cross-arm is analyzed and proposals for further protection measures during maintenance operation are provided.

This paper brings forward a new DFS algorithm in the unmanned aerial vehicle (UAV) platform communications relay system and gives the disposition processing. As a material application example, the paper simulates the algorithm. Compared to other algorithm, the result of simulation indicates that the new algorithm has these characteristics such as fast finding interference and steady changing frequency. The algorithm can satisfy request of system in complex communications environment and ensure Quality of Service (QoS) of system.

The driving intentions are identified, based on gear, pedal signals and vehicle status. Driving process is divided into starting mode, driving mode, reversing mode and so on. Safety management module is set, in order to control the process of power on and off, and detect the main fault related to vehicle control unit.

Optimal design of sensitive structure in gas pendulum tilt sensor was discussed. Using ANSYS software, fluid fields produced by heat source of the sensor in center were simulated. According simulated temperature field which is the key sensitive factor of the tilt sensor, optimal design of sensitive structure was discussed further. The results show that sensitivity of sensor is better when the distance between sensor wire and heat source is 0.2 R or 0.3R (R is radius of chamber). In respect to vertical place, experiment and theory show sensor has better sensitivity and linearity when installing angle is 60 ̊ while the horizontal distance between sensor wire and heat source is 0.3R.

This paper presents an active cell balancing technique for lithium-ion battery stacks using a flyback dc/dc converter topology. The combination of batteries can be controlled according to the batteries voltages to implement the battery-balancing function. The operational principle of the proposed system is described in detail, then the paper develops different strategies adapting to different working status of battery pack and a series of bench experiments is conducted to examine the effectiveness of the equalization system.

The discontinuity’s surface topography is often assumed as smooth and straight. To overcome non-considering roughness of discontinuity, direct shear numerical experiment is proposed to research influences of discontinuous roughness on its strength. Firstly, based on researched mechanical properties of discontinuity, the laws how asperity inclination angles and asperity heights of discontinuity and the mechanical behavior of discontinuity are studied. The results show that the failure of discontinuity considering roughness is not instantaneous. It is a complex process which goes through energy accumulation. The cohesive force increases with asperity inclination angle and asperity height increasing. The inner friction angle also goes through the same changes. However, when the normal stress reaches 500kPa for asperity inclination angle and 700kPa for asperity height, the shear strength experiences a decreasing process.

The coordination model of UAV network is attracting widespread attention. Considering from the flight characteristics of UAV, the Ad Hoc network should be adopted. This paper analyzes the characteristics of Ad Hoc network, and focuses on the further discussion on the physical layer technology OFDM to conclude that the application of OFDM technology in the UAV network communication can improve the data transmission capability.

Gastrointestinal micro-bionic robot checkups system in clinical applications has very broad prospects and important significance, which has become one of the hot research fields of medical equipment at home and abroad. In this paper, based on the micro machining technology, micro actuation technology, microelectronics technology, wireless communication technology, wireless power transfer technology and clinical medical technology, this study focused on the system design and the locomotion compatibility of a miniature biomimetic robotic examination system for gastrointestinal tract. The aim is to provide a new effective approach and reference for the design of robotic endoscope system. The result shows that the miniature bionic creeping robotic system runs stably and has good move performance. This generation of miniature bionic creeping robotic system is very important for the further research. Development of the gastrointestinal tract considers running checkups micro-robots its efficacy and safety analysis of the compatibility of that robot and the human gastrointestinal tract.

The characteristics of different grade of iron ore concentrate slurry are different, which causes confusion in pulp conveying process. Therefore, aiming at the problem of accelerated flow wear the pipeline, further propose the accelerated flow elimination technique to reduce the pipeline wear caused by accelerated flow, and ensure the safe operation of iron concentrate pipeline. The production practice shows that the technique can effectively inhibit the accelerated flow phenomena and ensure the different grade of iron concentrate without mixing in conveying, at the same time minimize the pipe wear.

For influence factors to engineering progress in project management of fund, resource allocation and climate etc, establish a schedule control model under the minimum cost. Using genetic algorithms for analysis, obtained the earliest start time of each working procedure at minimum costs. This method can avoid the impact of human factors and provides the powerful theory support for the policy-maker.

South Hot Spring wastewater source heat pump technology was introduced, and the basic status and application situation of South Hot Spring wastewater were analyzed. The environmental pollution index of wastewater was detected. Besides, the energy efficiency ratio of wastewater source heat pump system in South Hot Spring was predicted. What's more, the payback period and environmental benefits of the system in theory were also calculated. It shows that the system's payback period is 7 years, while 351 tons of standard coal and 2.25 million kWh of electricity were saved.

In generally, there are multiple factories. According to mining areas, it supplies different quality iron ore concentrate. And according to the unique requirements of owners, different grades concentrate cannot be confused. Therefore, the grade of slurry pipeline transportation is needed to be used. When in the study of grade transmission, we must focus on Hydraulic characteristics of solid-liquid two-phase for different quality of iron ore concentrate. Slurry concentration and Critical velocity of flow is especially important. Research shows that the deposition rate of laminar or turbulent transition velocity is higher than the occasion when the slurry has concentration, so the minimum operating speed is controlled by sedimentation; the concentration lower limit is 62%. If the concentration is over 68%, the yield stress of slurry will increase, and the pipeline pressure will drop, which is very sensitive to slight changes in concentration. Therefore, the solid weight concentration range is 62% to 68%,as the selection range of design.

Image segmentation is one of the most fundamental and important areas in the field of image processing and computer vision. The traditional level set methods need initialize the level set function as a distance function. If the initial contour is selected inappropriate, we may not get the desired ideal segmentation result. In order to solve the problem of level set automation initial, we proposed a new image segmentation algorithm based on level set and marker extraction. First, we extract the internal mark as level set initial curve by using Extended-minima transform. And then, through using the local binary fitting active contour model, we evolve the labeled image to get the final segmentation result. The simulation results show that this method has low computing complexity than the traditional level set method requirements, and can effectively solve the initialization problem of level set.

Eight aquatic plant species commonly found in northern China were studied on their removal ability and enrichment ability of nitrogen and phosphor in root, stems and leaf through the pot experiments. The result shows that when the concentration of TP and TN in entering water is ranged from 0.29 to 0.46mg/L and 4.69 to 4.74mg/L respectively,Lythrumsalicaria,IrispseudacorusandTyphaangustifoliahave the higher removal rate of TP, which increased by 18.61%, 17.8% and 16.44%, respectively, compared with the blank;Typha orientalis Presl,Phragmitesaustralisand T.angustifoliahave the higher removal rate of TN, which increased by 21.10%, 21.81%, 21.64%, respectively, compared with the blank.L.salicariahas the best removal ability of TP, the removal rate of TP in root,stem and leaf arrived at 3.57%, 2.13% and 3.34% compared with control.T.orientalis Preslhas the best removal ability of TN. Among the test plant species,L.salicaria, T.orientalis Presl andT.angustifoliaare the best one for the water purification in Ashi River basin.

Response of soil respiration in temperate wetlands in northeast China was studied from June 2009 to September 2011. Li-Cor 6400 infrared gas analyzer connected with a chamber was used to quantify the soil respiration. Results showed that soil respiration displayed a distinct seasonal pattern, with higher values observed in midsummer and lower values in spring and autumn. Furthermore, soil respiration exhibited a significant inter-annual variation. In addition, soil respiration presented significant positive exponential relationships with soil temperature. Whereas, significant exponential decay relationships between soil respiration rate and soil water content was found. In this ecosystem, soil temperature, soil water content and plant phenology together control soil respiration.

The market fish price is an important factor that affects the income of fishermen, so how to accurately analyze and predict the fish pricet o obtain huge profits has caught people's attention. As science advances, various price forecasting and analysis methods have come into being. How to build a prediction theories and models with relatively high success rate has been the study of many scholars over the years. With the development of artificial intelligence, neural networks have become an important tool of predicting and analyzing changes in market prices. Neural networks are important artificial intelligence technology, which have simple structures, but are able to solve complicated problems. They have strong applicability in predicting the mature index fluctuations in a short period. This paper considers some shortcomings and deficiencies the BP network prototype, which tries to use the wavelet Functions to replace the excitation function in the traditional BP algorithm on the basis of a network of neurons and then forms into WNN. We can verify the feasibility of WNN by perch price forecasts, and then this method is used in price forecasts of the three main fish of the Ulungur Lake Aquatic, to provide the basis for the aquatic base decision

This article describes a real-time temperature measurement system based on ARM9 and temperature sensor DS18B20. The temperature signal is collected by DS18B20 and converted into 16 bits serial digital signal. Later, ARM9 receives the signal and sends it to the wireless transceiver module PTR2000. PTR2000 sends the received signal to ARM9. At last the signal is transmitted to the LCD for a real-time display, also be sent to the printer for detailed records. Our design proposal is simple and practical.

In complex battlefield environment all kinds of the uncertainties for target tracking make the analysis and modeling of tracking system irresolvable. Aiming at different levels of system uncertainty, the correspondent modeling methods are introduced. First, the stochastic process model is investigated which includes target process equation and sensor measurement equation. Second, joint state-class probabilistic density is given for realizing target tracking and classification simultaneously. Finally, the joint target detection, tracking and identification based on finite-set statistics theory is represented for multi-sensor multi-target tracking.

Lightweight glass ceramic foams have been prepared from a mixture of solid wastes, namely 40 wt-% red mud and 60 wt-% fly ash. In this work, we illustrate the effects of variables in heat treatment process, including the sintering temperature and the holding time, on the quality of the foams. The reduction of sintering temperature as well as the holding time, was found to limit the coalescence and improve the apparent density and the compressive strength.

With the rapid development of WSN and the increasing of data speed, optimize of access technology becomes more and more realistic. This paper based on dual-polling protocol solves the QoS in WSN. On the basis of "Priority-based Polling Scheme for Traffic Differentiation", this paper conducted a dual-polling system based on FPGA design. By using the different network transmission priority setting, complete the optimization of network scheduling strategy. The control system has the advantages of high reliability, low delay, strong scalability, and high transmission efficiency.

The transformation of loss rate analysis for the Bi-directional cable TV network is becoming more and more important. In this paper, the authors employ the double queue single server system to the information of Bi-directional cable TV network in the analysis of information packet. The information of Bi-directional cable network packets are calculated and analyzed theoretically and the loss rate of the information packet is also simulated by computer in this paper. Simulation results show that the theoretical analysis and simulation are consistent. And the network of Bi-directional information packet using double queue single server modeling of cable television in the transformation of loss rate analysis provides reference to the theoretical analysis and computer simulation.