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A Solar power controller is designed based on High Stability Microcontroller PIC18F97J60.The controller uses a serial SPI LCD as the display interface,the solar cell voltage and output current,load electricity consumption and the controller running state are displayed in the LCD screen.The controller can communicate with the host computer through an Ethernet.The hardware structure and software flow design of the Solar power controller has been given.The experiment proved that LCD module has the advantages of simple structure,strong anti-interference ability,better stability,and satisfied the requirement of real-time display of the solar power controller.

In order to improve the impacts of the power generation capacity of the heating units which prolonged heating at a low load in the Combined Heat and Power, the reform program of imposing heat exchanger to the thermal system has been proposed in this paper. Besides, we can see the new generating capacity after transformation by thermodynamic analysis and the impacts of the coal consumption, etc. In addition, the changes of the resistance characteristics in water supply system were analyzed. It also analyzes the optimal operation of the feed pump when the running water system is inefficient due to variable flow. Therefore, in the case of an owned power plant, we have made a comprehensive evaluation to the economic benefits of the new thermal system.

The scattering properties and regularity of high power microwave propagation on the jungle-ground are analyzed with finite difference time domain (FDTD) method. The scattering properties at different incident angles are obtained, and the relationship between jungle scattering coefficient and grazing angle are comparatively analyzed with analytic and numerical methods. The theoretical analysis and numerical computation indicate that the scattering coefficient curve has a Brewster angle. Larger electrical parameters of topography lead to smaller Brewster angle. When the grazing angle is less than the Brewster angle, the scattering coefficient decreases with the grazing angle increasing; when the grazing angle is greater than the Brewster angle, the scattering coefficient increases with the

By swapping the entanglement of genuine four-particle entangled states, we propose a bidirectional quantum secure communication protocol. The biggest merit of this protocol is that the information leakage does not exist. In addition, the ideas of the "two-step" transmission and the block transmission are employed in this protocol. In order to analyze the security of the second sequence transmission, decoy states are used.

A series of pot culture experiments are carried out to evaluate the effects of inoculation of arbuscular mycorrhizal fungi (AMF) Glomus versifome (G.v) B1 and Glomus mosseae (G.m) B2 in different weight ratios (A1, A2, A3) of coal mine complex substrates. The results show that the increasing rates of organic matter, total N, P, and K reach 8.86%, 5.26%, 18.66% and 3.16%. A2 is selected as the suitable covering soil and B2 (G.m) as the preponderant AMF. White clover is suitable in the coal mine reclamation. Through promoting plants roots growth and the transformation of insoluble nutrition element to available state, the inoculation of AMF increases the nutrition absorption of plants and organic content in the substrate, fertilizing the coal mine complex substrate in the coal mine reclamation. The combination of AMF and sludge is able to enhance the fertilizing of coal mine castoff.

Objective: To assess the role of adding T1W images to MR cholangiopancreatography (MRCP) in detecting common bile duct (CBD) micro-stones. Subjects and Methods: From January 2005 to December 2006, a total of 104 patients with CBD stones were preoperatively studied by routine MRI and MRCP. Micro-stones, measuring less than 5 mm, were proven at surgery or ERCP following the MRI scans, within one to five days in 56/104 patients. Routine MRI scans included RF-FAST axial T1W images (TR/TE 155 ms/3.4 ms) and EXPRESS axial T2W (15000 ms/81 ms) as well as coronal T2W (15000 ms/81 ms) images. Features of CBD micro-calculi on T1W and MRCP images and the sensitivities of T1W images and MRCP for the diagnosis of CBD micro-stones were analyzed. Results: Among these 56 patients, gallbladder stones coexisted with choledocholithiasis in 30 patients and 7 patients had a past history of cholecystectomy for gallstones. The signal intensities of CBD micro-calculi on T1W images were high, relative to the low signal intensity of the bile in 47 patients. Filling defects on MRCP images were shown in 33 patients. Both T1W images alone and a combination of MRCP with T1W images had a higher sensitivity in detecting CBD micro-calculi than MRCP alone. Statistical analysis showed significant differences between the combination of MRCP with T1W images and MRCP alone in the ability to detect micro-stones (Fisher′s exact test, P < 0.01). Conclusion: For MRCP, adding a T1W sequence is helpful in increasing the sensitivity for diagnosing micro-calculi of the common bile ducts.

Theoretical calculations via a transfer matrix method were performed to investigate the possibility of fullerene films acting as two-dimensional (2D) photonic band gap crystals. The response within and out of the periodic structure of 2D photonic crystals consisting of air rods drilled into C60 or (C59N)2 films was studied. PBG was found around 0.85–1.24 eV in the near infrared region. We find that fullerene-based networks could be good candidates for absolute inhibition of transmission in the near infrared range for given orientations.

A commissioned development and cooperative development is the main and commonly used form of foreign lower permeability oilfield development. In the case of information asymmetry, in the process of cooperation and game, permeability, recovery rate and yield are all elements and the interests of both parties concerned. It shows that cooperation can be reached regardless of the high and low permeability by constructing the selective model .When the probability of high permeability is greater, resources development party more like to take entrustment and transfer mode; if the probability of low permeability is greater, resources development party more like to take joint development mode in the lower permeability oilfield. What model, their respective predicted permeability, expected returns, reservation utility and so on are the Influencing factors. The development of an oil block involve both the resources development party and the resources owner. These owners can develop resources by themselves or commission them to others: Transferring the concession mining title of oil block to the developers for only a limited number of years by use of an agreement. Then the developers are in charge of the developing as well as receive compensation and the owner will take over the oil block when it achieve payback period of resources. In addition to these two methods, there still another method for the owners of resources: Both sides make joint contribution under a certain proportion, cooperatively develop the oil field and obtain a share of return. In the case of the commissioned development form, the owner of the resources (denoted as Party A)require the resources development party(denoted as Party B) to make efforts to increase the permeability and recovery ratio; under the cooperated development form, party A require the development ability of party B is better than that of party A in order to extend the exploitation year(which means sustainable oilfield development)and increase the interests of party A continuously. For this reason, regardless of whether commissioned development or cooperative development, both sides have common benefits in terms of increasing permeability, recovery ratio and output. In view of the practical situation, most of the oil field exploited at present are lower permeability oil fields and the level of permeability is an significant factor for these oil fields: the higher of the permeability, the less cost of increasing the output and of improving the recovery ratio, and vise versa.

For the 110kV and above high-voltage overhead lines combined with underground power cables, a set of adaptive reclosure technology is developed based on travelling wave principle. Firstly, the fault section is determined on line by comparing the time difference between the arrival time of the fault induced initial travelling wave detected at two ends of the combined line with a setting value. Then, according to the different fault section, the corresponding reclosure blocking logic is determined, i.e. the reclosure blocking logic is activated if and only if the fault occurs inside the underground cable section of the combined line. In order to test the validity of the presented adaptive reclosure technology, an adaptive reclosure control system is developed based on double-ended travelling wave principle for an actual combined line. In the system, one reclosure control unit is installed at each terminal of the combined line and synchronized by a GPS based power system synchronous clock. The two reclosure control units can communicate with each other through 2M multiplexing optical-fiber channel. At each terminal of the combined line, the reclosure control unit has a reclosure blocking contact signal output (open normally) which is parallel connected to the two ends of the blocking autorecloser hard strap on the protective relaying cabinet for the combined line. Simulation test and actual operation experience show that the adaptive reclosure control technique for HV combined lines based on double-ended travelling wave principle is feasible.

Many-objective optimization is a difficulty in the present evolutionary multi-objective optimization community. Integrating decision makers' preferences into multi-objective evolutionary algorithm is considered to be an effective approach. This paper presents a new scheme named bipolar preferences dominance for many-objective optimization problems. In the proposed scheme, the solutions are first sorted by the g-dominance to enhance the efficiency of Pareto sorting, and the non-dominated ones are sorted again based on their similarities to increase the proportion of solutions' comparability in high-dimension space. With bipolar preferences dominance, the race is led to the Pareto optimal area which is close to the positive preference and far away from the negative preference. After combining the proposed scheme with NSGA-II methodology, the effectiveness of 2p-NSGA-II was validated on two to fifteen-objective test problems. Moreover, 2p-NSGA-II provides better result when compared with g-dominance based algorithm g-NSGA-II.

A new differential protection principle for transformer is proposed utilizing calculated power in this paper. It is able to discriminate between inrush and internal fault of transformers with large capacity and extra high voltage, preventing the maloperation due to magnetizing inrush. The calculated power is derived based on two-port network equivalent. An algorithm is presented that is practical for implementing in microcomputer relays. The effectiveness is proved by applying the proposed method to a Y/D-11 two-winding transformer rated 667MVA, 500 /10.5kV by via EMTDC simulation.

Tendering agency has developed into an industry in China, Tenderer has formally established as a profession. Indefinite task and obsolete informatization for tendering agency are key problems of industrial development. The model of tendering agency life cycle was established using the theory of project life cycle, tendering agency process system was also established by WBS method. The model of management information system was designed through the theory of WBS and WEB.

Analyzing the ecological benefits from different land utilization ways comparatively, by means of the evaluation of ecological service value, set a strong fulcrum for choosing rational land utilization way, and became the key point in land use pattern at present, especially in local scale. Therefore, by taking Shapingba district of Chongqing city as an example and rectifying the coefficient of ecological service value raised by Costanza, this paper respectively monetized the ecological service value of each land use type in 1996 and 2009, and then analyzed the spatial-temporal characteristic of that change during the fourteen years, and finally stipulated the future pattern of land use at local level. It came to the conclusions as follows. Firstly, the total ecological service value during 1996–2009 in Shapingba District not reduced but increased slightly. Secondly, the coefficient values of cultivated land, garden land, woodland raised by Costanza were close to regional actualities while that of water land, compared with that of the lake/river assigned by Costanza, was more than true value. Thirdly, the future pattern of land use in this region had four trends: the descend-to-rise zone, the sustainably-increased zone, the stable zone and the sensitive zone.

According to the analysis of calculation business and the usage of correlation function in Excel, some examples were proposed using Excel function in tendering agency business. The model of calculation management system was established by Excel VBA. To use Excel VBA is basis for management system implementation and other small-scale management system.

a novel broadband single-layer aperture coupled patch antenna is proposed. A simple patch geometry that is based on a rectangular patch with two symmetry arms fed by aperture coupled is introduced in this paper. A new resonant mode is excited using this novel patch structure. The results shows that the bandwidth is 4.1 to 6.3 GHz (S11S11

Intrapreneurship is an effective way to promote enterprises to achieve sustainable development. Summarize human resource management theory of intrapreneurship can help enterprises run intrapreneurship activities smoothly through human resource management. In this paper, firstly, we have summarized the research results of human resource management of intrapreneurship, and then put forward the direction of the need for the future researches.

Circulation Economy is a kind of activity which would involve reducing, reusing and recycling of resource during the process of production, circulation and consumption. Extended producer responsibility policy could in some way encourage manufacturing enterprises to adopt servicesation of input and servicesation of output strategy, retain ownership of physical products and provide customers with appropriate services to help them reduce the consumption of resources and energy and reduce environmental pollution. In this paper, based on the perspective of circulation economy, the method of SWOT matrix analysis is used to analyze the trend of servitization and the effect of servitization is also analyzed, which would give some theoretical support for the manufacturing enterprises to choose and implement the servitization strategy.

In order to decrease the hardship of the knowledge transferring and sharing between enterprises. We designed a Case-based reasoning mechanism for enterprise informalization projects. After an intensive survey of enterprise informalization we defined the case hierarchical representation in detail to enable project managers to describe project requirements adequately. Furthermore, we proposed a combination method of subjective and objective weights to the nearest neighbor algorithm for enterprise informalization case retrieval, which can facilitate users to get more comfortable. In addition, a framework of enterprise informalization project system based on CBR was built and the portion functions of the system were designed. Finally, an example was given for describing the CBR system.

China has been the first for more than ten years in the world textile export, and moreover China has a textile consumption big country and production big country in the world, all the things have proved that China have many comparative advantages to develop textile industry, however, America, as representative for the developed countries, in spite of the above fact, frequently made various trade barriers to China's textiles. In order to discover the negative influence of trade protective measures on China's textiles, the paper respectively explained the market equilibrium under the condition of close state, free trade, and protective trade, contrasted the social welfare levels of different trade environments, and finally listed in detail the measures which were established by America for keeping China's textiles international trade within limits, and brought forward some policy suggestions.

From the Pecking Order Hypothesis, the partiality of enterprise should see the internal fund as the main capital source for investing. Second is the debt, new stock financing is the last one. However, the financing practice of China's listed company just is in opposition to the theory, that is to say, the companies in China depend on the external financing even more than that of the other countries, and furthermore, the companies mainly rely on stock financing instead of the debt financing. In addition, the financing scale is relatively small, the premium of new stock issue is low, and the marketization degree of pricing method of new stock is also low, which show that the general financing structure and exterior financing structure are serious unbalance. Therefore, the administrative department and company should probe into the financing behavior of listed company and their reasons and provide decision-making ideas for the healthy development of China's capital market.

No one has a suspicion that China is a world textile big country, but people have a fuzzy know which are the textile big provinces and textile strong provinces in China. Therefore, studying the development mode of regional textile industry in China is of very important significance for continuously driving the sustainable development of China's textile industry. Under the background, the paper quantificationally analyzed the regional development characteristics of China's textile industry, namely the ladderlike development mode from the east to west and a wide gap between the competiveness of the east and mid-west region, and pointed out the textile strong provinces in China are only a few provinces while the two-third provinces are textile weak provinces. Thus, the task of changing China from world textile big country into world textile strong country is still a very arduous task.

From the international comparisons of economic growth and energy consumption, China's energy consumption per unit production is one of the world's highest, and the Chinese unit environmental cost of GDP is in the world forefront calculating energy consumption companied with environmental protection. Because of the 70% energy consumption of our country coming from coal, environmental regulation of coal enterprises is related to their survival and development, and is also related to the sustainable development of China's economy. In this context, this paper carefully reviewed various arguments of environmental regulation together with the theoretical basis, and put some in-depth study directions combined with the environmental protection practice of China's coal enterprises, which provide decision-making references for the smooth implementation of environmental protection work of China's coal enterprises.

Throughout the world, human beings made a step to serve the economic society, and the vigorous development of service and international trade became beautiful scenery. The proportions of service in the national economy as well as the employments have showed an increasing trend both in developed and developing countries. This paper comparatively analyzed the service trade in China and other world’s major countries in Service Trade Competitiveness Index, Revealed Comparative Advantage Index and Revealed Competitive Advantage Index, showed the international gap of our service trade comparing with India, and finally made out some countermeasures and suggestions for government, industry associations and enterprises.

This paper firstly summarized and commented on the “event analysis” that is extensively used in the field of financial application, analyzed the reasonable and scientific applications of “event analysis” on economic events, which provided the theoretical analysis tools and research ideas for studies on specific trade protection events. Secondly, it analyzed the event of the international protection against China's textile trade in detail, and qualitatively analyzed its short-term impact. Finally, it made a comprehensive and objective analysis on the results of the event analysis in light of China's basic national conditions and the actual situation of the textile trade.

Logistic industry is an emerging industry with the social and economic development, playing a more and more important role for the development of other industries, thus, logistic industry is widely attached importance by every country and business circle. However, generally speaking, logistic industry in China started later, no matter the theoretical research achievements or the social practice, China had a wide gap with developed countries in the logistic industry. Therefore, the paper comprehensively summarized the development experiences of logistic industry in the developed countries, in detail compared the management mode of logistic industry in China and foreign countries, put forward some good suggestions for the quick and wealthy development of local logistic industries in China based on the analysis on the situation and problems of the logistic industry.

With the sustainable development of China's economy, China's securities market would play more and more important role in the global securities market. However, as an emerging market, the speculative psychology and short-term investing behavior in China's securities market is very obvious, therefore, it is of important theoretical and practical significance to research on behavioral finance features of China's securities market. Firstly, the paper introduced the basic characteristics of China's securities market and illuminated the development background of behavioral finance in China; secondly, analyzed the structure and educational level of investors; finally, explained the difference of the investing behaviors between information trader and noise trader. Based on the analysis, the paper draw a conclusion that the frequent noise trading and sudden and sharp volatility of stock price of China's securities market was closely related with the perfect degree of market system and the investors, thus, the paper put forward some policy suggestions from the two aspects of macrocosmic supervision of government departments and improvement of investors' educational level.

The paper introduces function and the architecture of Automated Multimedia Lecture Recording (AMLR) system, analyzes the advantages and deficiencies of AMLR system, and presents some important proposals for teachers and students about how to make a lecture video successfully.

With the development and gradual application of information technology and network technique, management information system is becoming a necessary tool for enterprise participating in international competition. The paper firstly generally introduced the characteristics of processing enterprises that include production processing enterprises and brand marketing enterprises. Secondly, the paper analyzed the entire function of management information system of processing enterprise, and finally designed in detail the purchasing management and marketing management system based on internet, which will provide some helpful thoughts and practicable measures for informationization construction of processing enterprises.

In China, industrial cluster has formed the bigger economic scale and attracted a lot of SME (Small and Middle Enterprises) to join in industrial chain, and became the important power of China economic development. Firstly, this paper generalized the cluster type and forming reason of Chinese industrial cluster and listed some representative industrial clusters. Secondly, though comparing single SME with large scale enterprise, this paper discovered some advantages of industrial cluster. Finally, this paper also pointed out some server problems of Chinese industrial cluster, which all would be helpful for us to know the situation of China SME industrial cluster.

As an effective organization form upgrading corporation international competitive advantage, industry cluster attracts broad attention. This paper analyzed the situation of Chinese small and medium textile enterprise clusters, pointed out the shortcoming of textile industry clusters development, summarized the formation and development mode of Chinese textile industry clusters, and discussed the measures promoting small and medium textile enterprise clusters development based on Cournot competition model.

Although organizational commitment is increasingly regarded as a vital work-related attitude of enhancing employee's psychological attachment to the organization, it has also precluded an in-depth examination of particular inputs and configurations to individual attitudes and behaviors in workplace. Drawing upon social exchange theory, a model of new generation worker's organizational commitment and its work outcomes in term of job satisfaction and turnover intention was developed and tested using a sample of 392 employees working in Pearl River Delta of China. This model predicts that individual's need for growth and existence, job characteristics (skill variety, task identity, task significance, autonomy, and feedback), and perception of organizational politics have direct effects on organizational commitment. Results show the social exchange variables are strong predictors of organizational commitment and work outcomes. Implications of these findings and directions for future research are provided.

Amblyopia is a common visional disease of children. At present the accuracy of subjectivity examination is low and the objectivity examination also has some disadvantages, such as strict environment requests, too much stimulating frequency and so on. So we need a stable and practical objectivity examination method to solve problems. This thesis takes a research on the basic principle of the amblyopia electrophysiology and the electric potential signal characteristic based on the P-VEP technology is discussed in the amblyopia objectivity examination, and the wavelet iterative optimization threshold value method is used to eliminate the noise during signal processing. Choosing appropriate some equipments, we design the amblyopia electrophysiology examination system based on P-VEP technology. Finally the experiment proves the feasibility and practicability of this system, which will be good to the research of the subsequent amblyopia objectivity examination method and individuation treatment.

As the firms become increasingly aware that in-house R&D facilities and resources are no longer capable of being the sole source of the research needs, the cooperation between universities and industries are very popular nearly all over the world. This paper focuses on knowledge transfer process in the context of university-industry cooperation. Through literature research and theoretical analysis, this paper establishes five-stage knowledge transfer process model: searching stage, matching stage, learning stage, adaptation stage and integration stage. Besides that, puts communication stage across the whole knowledge transfer process. Basing on the model, this paper suggests the influential factors, which affect university-to-industry effective knowledge transfer. The influential factors are university knowledge factor, firm factors, interactive factor, knowledge characteristics and context distance. Finally, we suggest the further research direction and methods.

We report on the fabrication and characterization of low-voltage indium-tin-oxide (ITO) thin-film transistors (TFTs) gated by Ba0.4Sr0.6TiO3 (BST) gate dielectric deposited at room temperature. The 400-nm-thick BST film shows a low leakage current density of 6 ? 10?8 A/cm2 and a high specific capacitance of 83 nF/cm2 (corresponding r = 37). The ITO TFTs gated by such BST dielectric operate in a depletion mode with an operation voltage of 5.0 V. The device exhibits a threshold voltage of ?3.7 V, a subthreshold swing of 0.5 V/decade, a field effect mobility of 3.2cm2/Vs and a current on/off ratio of 1.4 ? 104.

Background/Aims: Transplantation of bone-marrow-derived mesenchymal stem cells (MSCs) has been used to treat spinal cord injury (SCI) to enhance tissue repair and neural cell regeneration. Glial cell line derived neurotrophic factor (GDNF) is an identified neural growth and survival factor. Here, we examined whether modification of GDNF levels in MSCs may further increase the potential of MSCs in promoting neural cell regeneration and subsequently the therapeutic outcome. Methods: We examined the mRNA and protein levels of GDNF in human MSCs by RT-qPCR and Western blot, respectively. Bioinformatics analyses were done to predict microRNAs (miRNAs) that target GDNF in MSCs. The functional binding of miRNAs to GDNF mRNA was examined by a dual luciferase reporter assay. MSCs were transduced with adeno-associated virus (AAV) carrying null or antisense for miR-383 (as-miR-383), which were transplanted into nude rats that underwent SCI. The intact tissue, cavity volume, and recovery of locomotor activity were assessed. Results: MSCs expressed very low GDNFprotein, but surprisingly high levels of GDNF mRNA. Bioinformatics analyses showed thatmiR-383 inhibited protein translation of GDNF, through binding to the 3’-UTR of the GDNFmRNA. MSCs transduced with AAV-as-miR-383 further increased the intact tissue percentage,decreased cavity volume, and enhanced the recovery of locomotor activity in nude rats that underwent SCI, compared to MSCs. Conclusions: Suppression of miR-383 may increase thetherapeutic potential of human bone-marrow-derived MSCs in treating SCI via augmentation of GDNF protein levels. Refereed/Peer-reviewed

Because the reentry telemetry wireless channel multipath propagation effects and the effect, channel will introduce transmission time delay dispersion, caused between the PCM/FM telemetry signal crosstalk and signal to noise ratio is too low, significantly increase BER. While traditional demodulation method because the demodulator threshold higher no longer apply. Study the problem, a multiple Symbol Detection method based on sliding strategy (Multi - Symbol Detection, MSD), can effectively overcome the low SNR and inter symbol interference. The simulation and test results verify the effectiveness of the method. Refereed/Peer-reviewed

Based on maximum likelihood, research a new based on Symbol Detection (Multi-Symbol Detection, MSD) soft demodulation method of PCM/FM telemetry signals. Introduced the basic principle of the demodulation method and the implementation process, analyzed the demodulation and synchronization factors and formulate the corresponding synchronization strategies. Refereed/Peer-reviewed

Signal processing speed is an important indicator of the performance of software based phase-locked loop. Previous software uses data redundancy of phase-locked loop based on parallel processing, but the amount of redundant data lead to the introduction of computer waste of resources, reducing efficiency and other issues. Design of a parallel processing method based on data blocks and redundant data segments dual dynamic partitioning, given the dynamic data partitioning strategy. Refereed/Peer-reviewed

Aimed at the problem that the demodulation threshold of non-coherent demodulation technology of PCM/FM telemetry system using frequency modulation in the present situation of aerospace measurement and control is higher, research a kind of multiple symbol detection based on maximum likelihood thought (Multi-Symbol Detection, MSD) demodulation method. This paper introduces the principle of multiple symbol detection and aiming at the shortcomings of the previous synchronization method, studies a kind of symbol decision process and synchronization of the combination of synchronization method. Refereed/Peer-reviewed

The dynamic parameter model based on cellular automata was not taken into account interaction between pedestrian and environment,it resulted in quite different from that of in real life.So a new model was proposed by taking into account one of the interactions:repulsion.In the present work, evacuation involving repulsion problem was studied in the room with single exit.The expanded model based on dynamic parameter model is introduced by using the quantitative of repulsion.The model could be used to explore the different degree of panic through repulsion.The corresponding simulations of pedestrian evacuation with repulsion were carried out. It extends the constraint where the original model was applied. The improved model is more accordance with actual circumstance than the original dynamic parameters model.The improved model is not only expected to model evacuations in detail but also has high efficiency. Refereed/Peer-reviewed

In order to meet the requirement of splitting wood to take out the pests in the plant protection research work, the splitting and taking pest machine is designed, which working mode is based on spiral transmission. According to the wear condition, the main structure parameters of the spiral transmission device for splitting were determined. Furthermore, the strength of the dangerous section of screw rod, the strength of nuts' teeth, the self-lock of spiral pair and the stability of screw rod were checked. The virtual prototype of splitting and taking pest machine is made by using SolidWorks software, the motion simulation results show that no interference among the various parts. The test results of the prototype indicate that the machine can meet the job requirement to split wood and take out the pests. In addition, the machine has many features, such as simple structure, working smoothly and low vibration. Refereed/Peer-reviewed

An expanded dynamic parameter model is introduced based on cellular automata. In this model friction is modeled quantitatively. The dynamic parameters including direction parameter and empty parameter are formulated to simplify tactically the process of making decisions for pedestrian evacuation. The pedestrian moving rule is modified by bringing in the conception of friction under high density, corresponding simulations of pedestrian evacuation is carried out. The improved model considers the impact of interactions among pedestrians on the evacuation process. Therefore, it is more accordance with actual circumstance than the original dynamic parameters model. Refereed/Peer-reviewed

In order to solve the problems of expensive and non-universal dedicated virtual situational teaching laboratory equipments, this paper proposed to apply Kinect to establish low-cost and strongly-immersive virtual situational teaching system. Figure image matting is a key issue of Kinect-based virtual situational teaching system. So a fast and real-time matting algorithm is hereby put forward with use of Kinect depth map. It adopt improved region growth algorithm to obtain trimap, coupled with the use of a set of shared sample points with low computational complexity. Through weighted filtering, image matting regions are smoothed so as to obtain accurate matting results. Practices in classroom situational teaching for Business English prove this matting method is robust and stable, and almost unaffected by light and complex background. Kinect-based virtual situation and somatosensory interactive technology can better meet the needs of classroom teaching, which is a low-cost and strongly-immersive virtual situational teaching solution. © (2014) Trans Tech Publications, Switzerland. Refereed/Peer-reviewed

According to the characteristics of PCM / FM signals, we propose a new method based on STFT resolve tune software. Firstly, the spectral characteristics of PCM / FM signal is given use of the spectrum PCM / FM signal is demodulated theoretical basis. This paper discusses in detail the basic principles of this demodulation method and implementation process, analyze the demodulation performance and complexity of the method.

Reentry telemetry channel is a special channel in the process of remote sensing, black barrier and multipath effect will cause the PCM/FM telemetry signal-to-noise ratio and frequency selective fading, even break through the traditional demodulation method of demodulation threshold, led to the bit error rate is greatly increased when aircraft fly through the reentry telemetry channel. Aiming at the problem, a sliding length of 1 more Symbol Detection (Multi - Symbol Detection, MSD) demodulation algorithm is studied: the continuous observations of N element signal and local signal for joint Detection, but each time the MSD sentences a MSD earlier with N - 1 element coincidence. In theory, the algorithm can increase the channel gain about 3 db, the simulation and test results verified the effectiveness of the proposed algorithm. Refereed/Peer-reviewed

A universal mathematical model for machining cycloid approximating involute and straight lines is developed in this study based on the definition and parameter-equation of cycloid and the machining principle of cycloid rotational indexing. The machining examples of the various parts are presented to show the feasibility of this model. Refereed/Peer-reviewed