Scene classification has been a hot topic in the field of computer vision. Under the premise of image segmentation, this paper proposes a novel scene classification algorithm, combining pixel location, color characteristics, Gabor features, and local binary features (LBP) to form a covariance descriptor,...

Focus on the hill-start auto control technology of the medium and heavy duty vehicles, structure of the spring brake cylinder and principle of the pneumatic auto parking brake system were analyzed. The force analysis of the vehicles which is on the hill was researched. The relationships between the driving...

The nonlinear effects four wave mixing (FWM) mechanism and characteristics of semiconductor optical amplifier (SOA) were analyzed. Based on this, we proposed a method to implement optical logic AND gate based on FWM of SOA. It was approved that this method is feasible by simulation experiment. The biggest...

In view of the void fraction measurement problem of oil-gas-water three phase flow in oil production logging, in this thesis, optical fiber probe sensor is used to measure the cross-sectional local void fraction. In order to analysis post-treatment raw probe signal preferably and more reasonable, firstly,...

At present, there are many different kinds of transformers in the oilfield, How to identify the high loss transformer, realize the transformer economic operation, which has important significance in saving electricity and reducing oilfield enterprises operating cost. This paper expounds the on-line measurement...

We propose a method to implement NOR OR optical gate Based on the nonlinear polarization rotation (NPR) effect of a single Semiconductor optical amplifier (SOA). This method is theoretically analyzed and simulation experimentally verified. Both the NOR and OR logic gate can be achieved by adjusting the...

This paper analyzes the basic structure of microcontroller and researches CMOS circuit photon emission mechanism, by using single-photon detection device, builds a collection of photon emission experiments platform for microcontroller. By studying the AT89C52 microcontroller, analyzes the microcontroller...

Compare with traditional way of numerical simulation by establishing the mathematical model through geometry optic, we design a tracepro model to analyze the sensing process of reflective intensity-modulated fiber optic sensor base on ray tracing. We use bimetal as sensing element. This type of sensor...

Based on magnetic levitation theory, the paper designed the electromagnetic force directly on the knitting needles knitting needles driven high-speed maglev-style, the suspension of driver jacquard knitting needle selection control theory; knitted by magnetic levitation control theoretical analysis,...

In view of high fault rates of tension control system in the traditional circular knitting machine, this paper proposes and develops one kind of monolithic integrated circuit yarn tension control system. By using the FTA method to analysis systematically each kind of trouble cause in yarn tension system,...

As a kind of clean and renewable energy, wind power has many advantages such as a large resource reserves, renewable, no pollution emissions and not flooded, covers less area, short construction period, flexible and so on. Its unique advantages make it stand out in many new energy is becoming a hot spot...

Compared with other methods of dynamic gesture recognition, dynamic hand gesture recognition based on Hidden Markov Model (HMM) is more widely used. This method aims at analyzing hand signals. In traditional HMM method, any gestures would be calculated with the largest probability as the final recognition...

Aiming at the low efficiency of the traditional examination, waste of human and material resource, this paper presents the design and implementation of a web-based test system based on B/S structure. The system realizes efficient, flexible arrangement of multi subject test, achieves low cost to organize...

Cloud services technology is a distributed application processing to solve complex computing environments and software development is a hot technology. With the development of Internet technology, cloud services technology in the traffic characteristics of integrated information management of public...

In this paper, a gray multi-focus image fusion algorithm based on fuzzy theory classification and Dual-Tree Complex Wavelet Transform is proposed in accordance with fusion of gray multi-focus images. Fuzzy theory is introduced to remove uncertainty when choosing sub-band coefficients in smooth regions...

With the rapid development of Internet, the virtual community gathers a large number of netizens with its unique attraction, resulting in huge network traffic and increasing the value of the websites. Through data collection, literature analysis, hierarchical analysis model and formula analysis, this...

Node location is one of the basic problems in wireless sensor networks (WSN). We investigate the wireless localization methods based on providing received signal strength index (RSSI) measurements between a mobile node and several access nodes in a WSN. In order to estimate the distance between two nodes,...

In view of the demand of quality supervision information of hydraulic projects of one province, and based on the project quality supervision laws and regulations of China, and the local laws and regulations of the province, the web-based quality supervision administration system of hydraulic projects...

This paper presents a new multi-hop routing algorithm for wireless sensor networks. Each sensor node makes a local decision to forward or drop a packet, via a forwarding probability, either static or dynamic. This probability can be associated with local information such as residual energy of the node,...

To deal with the global climate and environmental issues, low carbon development is becoming the trend of the world in smart grid. Accordingly, it is important to obtain the completed grid carbon emission evaluation system and build the online evaluation model. The mathematical model of carbon emission...

The power factor correction controller is needful for the well operation of power grid in order to eliminate the higher harmonics and improve the power-factor of electrical loadings. In the design of this system with the boost chopper as the core, the power-factor correction control chip named UCC28019...

With the continuous development of domestic aviation industry, the number of special purpose vehicle serving for aircrafts within the airport is increasing. Owing to the high cost of the special purpose vehicle, airport management personnel becomes more and more concerned about the following problems,...

With the advancement of science and technology development and the development of social , more and more current information technology and computer technology has been used in the various aspects of life and work, the current rapid development of network technology has penetrated into all aspects of...

Today, study of generalized 3x+1 function becomes a highlight in fractal area. In this paper, since fractal property of generalized 3x+1 functions T(z) and C(z) is difficult to study, we study two approximate generalized 3x+1 functions B(z) and D(z), which are produced by T(z) and C(z), in the real axis....

A down-conversion active mixer for LTE receiver is proposed, which focus on improving the traditional sub-threshold compensation method. The linearity is improved by adjusting the load inductance of transconductance stage and optimizing the phase of third-order transconductance coefficient; the noise...

To provide patients with a comfortable and healthy breathing environment, a heated humidification system for respirator is designed by PID (Proportional, Integral and Differential) algorithm and silicon controlled rectifier (SCR). Zero-crossing detection method is also introduced, and its circuit is...

Students majored in software engineering have poor practical ability and professional quality currently, to meet the needs of industrial restructuring of the information society and the challenges of the diversity of Software talents, student’s training quality and innovation ability should be improved....

With the development of electronic technology, Fieldbus control network is applied in industrial control system widely. In CGEC Company, Fieldbus technology is commonly used in electric control system of machine. ControlNet is one kind of Fieldbus control network. This paper briefly introduces the characteristics...

The tower of Hanoi problem in the design of computer algorithm is a classical problem. Generally people will use recursive algorithm to solve this problem. In this paper, we will use symmetric algorithms to solve Hanoi problem simply and efficiently. At the same time, this paper also detailed researches...

The purpose of this paper is improving the integration of smart community system, decreasing the redundancy of data fusion for smart community system in order to integrate information and resources effectively. According to the complex information system of multi-living agent theory and method, this...

According to the fuzzy control theory, the paper describes the principle and feature of the fuzzy control by fuzzy control having strong robustness in allusion to the control system which has the characteristics of pure hysteresis and unprecise parameter time-variance and model. On this basis, it conducts...

The performance of the software is an important attribute index, and performance is particularly important for Java programs. Among the Java program, the larger the project, the more important performance optimization of the code is. This requires the program to complete the task with less use of resources...

Pulsed power technology is the key technologies of the future of national defense, while the intense electron beam source development is the high-power microwave bottlenecks. Based on previous experimental, a pseudospark discharge is a viable possibility in this respect, a small-scaled and intense PS...

In practice, fault diagnosis of power transformer is often performed on the basis of limited data. Under this circumstance, there are practical difficulties in identifying unique distributions as input for fault diagnosis. In order to solve the problem and improve the diagnosis ability of power transformer...

Fresh products are an important part of e-commerce projects in fresh product enterprises and account for a very high share of inventory cost in these enterprises. Therefore, to ensure the smooth implementation of e-commerce projects, fresh product suppliers must take up a lot of money on stock. Meanwhile,...

The shopping online and E-commerce are developing in full swing, which requires the higher from the matched logistics industry. As the emergence of “Rookie Network”, cloud logistics has been developed in the new logistics mode under surrounding of E-commerce. Our objective in this paper is to build the...

User usually retrieve information of interest via search engines, but for a mobile client, the user experience of manually search will be poor, for it is inefficient, and may bring huge data traffic for mobile user. To provide a convenient method for mobile users to obtain tourism information, putting...

In the page, We discuss several dimensionality reduction methods for image feature, and then focus on the one: SPCA(Simple Primary Component Analysis), which is simple fast and exceeding algorithm of data-oriented PCA algorithm. In order to better understand the SPCA algo-rithm, Some well-designed experiments...

ZigBee is a technology now being deployed for wireless personal area networks. The paper discussed the technical characteristics and network topology structures of ZigBee. And then a design on intelligent lighting monitoring system based on ZigBee was proposed. The system adopted tree topology structure...

With the rapid development of science technology, especially the popularization of information construction, the performance evaluation under the network environment has become increasingly widespread. This paper describes the scheme and application about the performance evaluation. Firstly, we discuss...

In this paper, we propose an efficient classification method for hyperspectral images based on the extreme learning machine (ELM) and self-adaptive differential evolution (jDE).The approach of ELM is characterized by a unified formulation for regression, binary, and multiclass classification problems,...

Elliptic curve cryptography(ECC) is one of the most important public key cryptography. The koblitz curve is a special kind of elliptic curve in ECC. The e1liptic curve cryptosystem (ECC) which is based on elliptic curve discrete logarithm problem. As of today the security of an ECC is determined by the...

A solution is presented which integrate the GWT and Spring MVC in the e-Learning system in this paper. The client-side is provided with widget support based on Ajax by using GWT, and the Spring MVC layer the project, make the project easy to maintain. Hibernate using the database configuration information...

There are two big problems in the market now. First, the power products of power grid enterprises can not be stored, but marketing and supply of production complete with one-time instantaneous. Second, the power grid enterprises do not produce, the procurement price of electric products is determined...

Along with the construction of smart grid in China and the gradual implementation of the electricity market, the traditional mode of centralized power supply has been unable to meet the social demand for electricity, distributed power supply has become a new trend in the future development of the electric...

Wind power in China is currently one of the higher degrees of commercialization of renewable energy industries. 90s of the last century, wind power has made gratifying achievements, but also faces some problems and obstacles, if not properly resolved, will severely restrict the further development of...

Solar cell material GaN films were grown on 6H-SiC by metalorganic chemical vapor deposition (MOCVD). An in situ SiNx interlayer was employed during the growth process, which acted as a nano-mask to promote epitaxial lateral overgrowth. The threading dislocations (TDs) density in the films may be reduced...

The genetic algorithm is applied to reactive power optimization. The establishment of a genetic algorithm for reactive power optimization model based clustering algorithm for the day through the system load curve cluster sub-period, and in the establishment of dynamic reactive power optimization model...

he effect of disordered electric vehicle charging and discharging on security and economic operation of the power system has serious negative effects. To avoid this problem, the emulation system of electric car charging stations is constructed according to the analysis of energy efficiency of electric...

In this paper, the Particle Swarm Optimization (PSO) algorithm converges too fast, easy access to local convergence, leading to convergence accuracy is not high, to study the particle swarm algorithm improvements. Some parameters in the traditional PSO algorithm need to be predefined by tests, so the...

This paper presents a distributed and reactive power optimization system based on Muti-Agent System framework. The various component and functions of monomer Agent are displayed in the optimization system. The collaboration and coordination between the Agent are achieved by information sharing through...

The acquirement of 3D geometric information is the most important for reverse engineering. A new approach for three-dimensional (3D) shape measurement based on digtal fringe and neural networks is proposed. The precision of camera calibration determines the measurement accuracy of the system. By applying...

Research on domestic pollution sources is actively carried out to be studied as an international environmental issue after that on industrial pollution sources. Contrasted with industrial source, neither regularity nor mechanism are shown in the studies on domestic source.The domestic source of urban...