Transmission lines ice cover is a kind of serious natural disasters, is one of the major problems to endanger the safety of transmission lines running.Communication often short-circuit current melting ice is melting ice the problem of insufficient power supply capacity is much, and dc melting technology...

Parameter optimization of Support Vector Machine (SVM) is an important research problem, because it is critical for establishing an effective SVM with excellent generalization. This study develops a novel and efficient method to solve this problem by nesting two particle swarm optimization (PSO) algorithms...

Support Vector Machine (SVM) is an influential and fashionable statistical learning technique for binary classification and regression. The generalization performance of SVM highly depends on proper tuning of the penalty parameter and kernel function parameter(s). An original technique is proposed to...

Based on the order theory, a study of the differences between the preordering and the ordering and a discussion of the isotone map and homomorphism map are obtained. According to the differences of the constructions of the algebraic lattice and the ordering lattice, we prove the algebraic sublattice...

With the fast and rapid advancement in computer and control technology, it is essential and necessary for the electronic products to be elaborated and sophisticated, and the internal functions are various and high speed. In the late 1990s, the emergence of the new type permanent magnet mechanism and...

With STC89C51 as the core controller, the distributed wireless monitoring system for air quality has been designed and implemented in this paper. With the improvement of human material civilization, increasing economic benefits, the nature of the human damage is aggravating. Environmental pollution is...

With the rapid development of data science and computer technology, hierarchical storage system based on Hadoop is being research. In this paper, we propose a novel methodology of hierarchical storage system based on Hadoop framework. This way the Hadoop cluster will not reach the stage where the NameNode...

With the rapid development of machine learning and document analysis techniques, the research on the character mosaic and paper scrap recovery based on simulated annealing algorithm is urgent needed. In this paper, we approach is proposed based on pieces of text line features, form line semi-auto stitching...

The security of software applications, from web-based applications to mobile services, is always at risk because of the open society of internet. With the increase in the number of network throughput and security threats, intrusion detection system has attracted much attention in recent years. In this...

In Bag-of-Words based image retrieval, the SIFT visual word has a low discriminative power, so false positive matches occur prevalently. The research on data-guided image retrieval system is a hot topic. Its innovation is using PCNN and ICM in image feature extraction with translation, rotation, scale...

As the global energy problem becomes more and more severe, the ultra-high voltage (UHV) AC transmission technology will get a large number of applications. The UHV transformer, as one of the important equipments of the transmission system, its quality and reliability is directly related to the safe and...

With the microelectronics technology, computer technology and wireless communication technology advances, promoted the rapid development of low-power multifunctional sensor, in the tiny volume can integrate information acquisition, data processing and wireless communication and other functions. This...

In this paper, we have analyzed and described dark-Gaussian soliton collision behaviors within a modified add/drop multiplexer system consisting of one center ring and one smaller ring on the left side. Optical communication system based on dispersion compensation fiber and nonlinear optical effect is...

In this paper, we propose a novel research of proximity effect correlation algorithm for accurate RF system. In summary, we have demonstrated an efficient approach for broadband modeling of millimeter-wave CMOS FETs by using a set of pre-measured and pre-modeled cells with varied gate width. This approach...

Aiming at the problem that surgeons can not open unsterilized drawers by themselves after hand disinfection, intelligent drawer speech recognition control system was designed. The system based on non-specific person speech recognition technology takes embedded microprocessor as the core, consists of...

In recent years, development of mineral pipeline is rapid, which is one of the best way to solve the question fine iron ore output in the complex terrain of the western china. Application practice shows that the method of mineral pipeline transportation solved a series of defect from other transportion...

The sales of electricity have great effect on operation decisions and budget arrangement of power grid companies directly, so the accuracy of electricity sale forecasting is quite crucial. Since the sales of electricity data has obvious increase trend with time and seasonal variation characteristics,...

This paper is briefly discussed the theory of Sigma-Delta modulator, analyzed the performance of L-order single bit Sigma-Delta modulator. A system modeling for 2nd order Sigma-Delta modulator is simulated. Under laboratory conditions, An acoustic amplifier with Sigma-Delta modulation and PWM modulation...

Particle Swarm Optimization (PSO) is one of the most popular optimization algorithms, but it suffers from the contradiction between the exploitation ability and the exploration ability. This paper presents a scheme that introduced main swarm to search for global solution and sub-swarm which was named...

Microblogging emotional elements extraction recall rate is extremely low without opinion words expansion. Aiming at the feature extraction of Microblogging sentiment, a sentiment feature extraction method based on dependency parsing for the Microblogging emotional has been proposed in this paper, abbreviated...

Fire wireless communications is an important guarantee for achieving fighting and rescue. The particularity of the fire rescue field needs higher request of the fire wireless communication. Considering Chinese fire wireless communication situation and the problem of fire site communication, Mesh wireless...

Coal mine security is related to national economy and personal safety. Efficient monitoring system is urgent for safety mining, according to the frequent accidents in colliery recently. In this paper, U-shaped model is involved to simulate the structure of coal mine. Moreover, gas diffusion model, sensor...

The spacecraft telemetry data is the only way for operation managers to understand the spacecraft’s real working state in space. In face with the increasing amount of telemetry data growing day by day, it is hard to overcome the long data time span, large data volume, dirty data and etc. It is very necessary...

Guns, especially new type guns play an important role in modern warfare. As an important part of gun, the barrels’ damage detection is of great significance. After studying and comparing the characteristics of L mode and T mode ultrasonic guided waves, this paper puts forward a nondestructive detection...

In order to improve the level of interaction service between users and grids, and dig into the capacity of smart meters, this paper developed the home interaction terminal. It meets people’s interactive demands, which plays an important role in the smart interaction system. Based on the electric energy...

Data Sparseness, the evident characteristic of short text, is caused by the diversity of language expression and the short text length. The previous text models represented by Bag of Word (BOW) only considers the statistical feature of words, and thus always underperformed when it comes to short texts....

based on modular robot control system reconstruction problem, put forward a kind of flexible embedded control system architecture. The control system of various hardware and software function module is extracted into a standard components, hardware module adopted the dual-core processor is designed in...

Power line communication (PLC) has shown great advantages in the smart grid, broadband access, intelligent home and four nets fusion fields.But its bad channel environment especially the noise interference problem is so serious that has become a bottleneck restricting of the development.In this paper,we...

After ending the Radar Antenna modification on the airborne plane, the initial installation error is need to be measured and to be compensated with the initial error. For the attitude measuring requirements of airborne radar Antenna mounted, This paper studies a non-contact optical measuring method based...

CSMA-CA back-off algorithm is the most important link for wireless sensor network(WSN) MAC protocol, distributes the limited wireless communication resource among all WSNs, is the key to ensure the efficient communication for WSN. ADF7025 is a single chip wireless transceiver with a low rate, low power...

Wireless sensor networks(WSNs) can real-time collect information and monitor the objects located regional distribution network, has a broad application prospect. Research on efficient routing algorithm becomes the core problem to improve the communication connectivity, reduce transmission delay, prolong...

A novel calibration method is proposed to measure object plane tilt angle in microscope system with small-depth-field. The proposed method is constructed by a space model about calibration board and the surface of image. Only a otating disk, a goniometer and a calibration board with some features are...

Based on the analysis of city fire station layout influencing factors, this thesis studied of common fire station layout optimization method and model, finally brought forward the advantage of LINGO and studied a certain city fire station layout by using LINGO, in the hope of providing some reference...

This paper introduced a method of designing radar control unit detection and maintenance platform based on PC104,and focused on expounding design of hardware and software of the platform. The platform uses a high-performance PC104 embedded computer as the control core. Realizing state control and detection...

In saliency based video coding, the salient parts of the each frame are encoded with higher quality than non salient areas to improve the signal to noise ratio and get higher compression ratio. In this paper, the background of the saliency based video perceptual coding technology is introduced first....

When embed watermark into compressed video stream, distortion drift, including intra-frame and inter-frame, is of the first important problem that must be taken into consideration. With the analysis of hierarchical b-picture (HBP) coding structure and drift-level mechanism, a new watermarking algorithm...

The paper presented a adaptive template update method of multi feature fusion based on Camshift algorithm. When one feature to distinguish the foreground and background is not obvious, other features can be complement each other. The algorithm combines texture, edge and color features, using the different...

A new algorithm of feature matching was presented by this paper. In the new algorithm, Curvelet first used to denoise, then RANSAC optimized SIFT algorithm used to stitch images. Experiments show that the new algorithm is better to remove error matching points. It improved the accuracy of local invariant...

The traditional genetic algorithm is used to search some function extreme value, but it has low precision and poor stability. For this shortage, A kind of parallel genetic algorithm based on Otsu double threshold algorithm of image edge detection, the design into a line of two columns of the vector population,...

The weld image acquisition is generally under the environment of arc, soot and other complex, weld image edge detection is more difficult, this paper proposes a new two-dimensional fuzzy entropy extraction algorithm. When dealing with image edge detection, using the genetic algorithm to obtain the global...

Suspension Kinematic is important feature for automobile. This paper focus on space coordinate transform algorithm of Suspension Kinematic parameters. New algorithm for the Suspension Kinematics test bench is based on theory of space vector and coordinate geometry transform. Relative coordinates of specific...

There are some defects with the M7150A grinder grinding, such as, cooling is unsatisfactory, lubrication is poor, axial movement is large. These problems are safety risks in the actual production, and easily lead to bearing burst and machine shutdown. For more than a few problems, the author conducted...

machining error compensation method for Aeronautical thin-walled parts machining process is proposed to improve the processing quality, reduce rework times and improve processing efficiency. Based on the analysis of thin-walled parts processing error sources, the thin-walled parts machining process is...

The residual stress distribution condition of homemade heavy rail U75V are tested by X-ray and impact indentation method. Results shows the stress magnitude order from high to low of heavy rail is the same with two methods: Bottom center, Head middle, Bottom right, Head right, Waist. The relative error...

Being a key link in modern imaging tracking system, the quality of moving target detection in dynamic scene will influence the performance of the whole tracking system immediately. Markov Random Field theory has been successfully used in image target tracking and identification leaning against its complete...

Current medical monitoring equipment has disadvantages of high power, high cost, fixed monitoring, more wiring, etc. In the paper, a set of intelligent medical monitoring system based on ZigBee wireless sensor network is developed aiming at these disadvantages. High-frequency wireless multi-channel data...

The fracture causes of fixed frame bole for a B-phase spindle of breakers were discussed based on results of macroscopic inspection, chemical composition analysis, metallurgical microstructure examination, SEM fracture analysis. It was concluded that the screw deformed and cracked under shock load. Suggestions...

In this paper, a wireless sensor network is proposed as an approach to long-range communication in order to monitor data outside of the nuclear reactor. ATmega16 is used in the node to exercise master control; the net topology communication protocols and data collecting programs are developed with this...

The simulation of snow in virtual scene can greatly of particles will make both simulation and real-time of system more difficult. A method for simulating snow is presented in this paper based on the analysis of particle system and texture mapping technology. The basic idea of the method is using texture...

Customised farming has seen ever increasing interest of next level farming practices across the globe by the modern agronomist of the age. Customized Management practices (CMP) make use of creating management zones (MZs’), leading to precision farming through application of variable rate technology for...

In this paper, an opportunity networks routing algorithm, which is suitable a certain social model, is proposed based on social. In this algorithm, the relationship degree between nodes is computed based on the social nature; and the central of nodes is computed based on the level of activity in opportunity...

Aimed for the problems of changeable demand for form in workflow management system based on web, a form designer based on Html was designed, which realized the function of custom form. A model of process promotion based on the form is devised, which put forward the method of integration of workflow and...

To meet the requirements of emergency evacuation in a large building, this paper introduces design and implementation of emergency evacuation simulation model in a large building based on GIS in detail. Firstly, three-tire architecture and functions of the simulation model are designed in the paper....

purpose: This research focused on unstable angina pectoris of Qi-stagnation and blood-stasis coronary heart disease, discussed the feasibility of seeking biological markers associated with the syndrome with literature mining methods. Method: using a combination methods of literature research and the...

With the acceleration of power information construction, the need of intranet security construction is increasingly. How to build a credible and controllable information intranet become more and more intractable. This paper focus the source of security problem-terminal, puts forward a new method for...

The chiral symmetry breaking during the nucleation and growth of sodium chlorate and sodium bromate from their aqueous solutions was investigated under natural unstirred conditions. The results suggested that temperature fluctuation inherently existing in nature is a possible main driving force causing...

The 3D solid modeling technology is the basic of the virtual model in the virtual reality, as well as is the core element of the CAD system. It has quickly become the mainstream of theCAD technology. Computational geometry is to use the computer to transform, synthesize and analyze the physical geometry...

This paper innovatively presents ARM9 processor-AT91RM9200 and CYCLONE series FPGA-EP3C16F484 as core to design motion control system for high precision CNC machine tools. This paper introduces key techniques of motion control system in details from hardware to software, using adaptive pid algorithm...

Ant colony algorithm (ACA) is a very effective way for traveling salesman problem (TSP) due to the positive feedback and the distributed parallel computing mechanism. But it has many drawbacks, for example, long search time, precocity and stagnation. In order to speed up convergence rate and ensure the...

This paper introduces the usage method of the MATLAB optimization toolbox and the application of MATLAB software to solve the problems in mechanical optimal design. By analyzing, the mathematical model of optimum design of the four-bar linkage is proposed, and the optimization design of four-bar linkage...

Photovoltaic (PV) has the advantage of safe, reliable, clean, easy maintenance and so on. This paper analyzes the natural conditions of solar energy resources in Qingdao .The local application situation and development trend of PV are also discussed. At the same time, in order to meet the needs of operation...

Wind energy can be converted to electric energy by wind power generation, which is the world's fastest growing renewable green energy. In this paper, in view of the current construction of wind power generation in Inner Mongolia, we study the technical status and development tendency of wind power. In...

The rate, quality and economics of printing process are tightly linked to the characteristics of printing technology and materials used. Paper printability is variable property which is according with press conditions and printing characters. A kind of tissue paper used in industrial applications for...

Proposed is an algorithm for network security situation prediction (NSSP) based on adaptive clustering radical basis function (RBF) neural network. Experiment results show that, the proposed method not only reflects the general trend of network security situation, but also improves the prediction accuracy.

Analyzing the existing problems of traditional land law enforcement work and the development significance of land supervision-discovery system based on remote sensing technology, combined with the actual situation of Xi'an Bureau of State Land Supervision, the paper designed land supervision-discovery...

In the lightning monitoring systems, positioning calculation is directly related to the results of the detection accuracy. In this paper, the concept of the particle swarm optimization (PSO) algorithm for lightning location estimation was brought in. The PSO overcome the disadvantages of iterative method,...

Partial discharge (PD) signals is one of the key means to judge the transformer fault, how to effectively remove interference of PD in the field is the key in PD monitoring. Based on the Hilbert transform, this paper proposes a new algorithm of signal decomposition of Variational Mode Decomposition (VMD)...

Identifying the lightning and short-circuit fault of transmission lines correctly is important for the transient protection. To address the problem, this paper adopts a multi-resolution analysis of wavelet packet and finds that energy distribution of additional components of the transient currents differs...

In this letter, a wireless image transmission system is proposed and presented based on the visible light communication (VLC). This system consists of OV7670 image acquisition module, STM32, encoding module based on FPGA, modulation driving circuit and LED. IPPM, which has advantages of high average...

This paper considers the consensus problem of a multi-agent system with time delay and proposes a distributed dynamic output feedback protocol. A sufficient condition in terms of linear matrix inequalities (LMIs) is given to ensure consensus of the multi-agent system.

The interaction of two in-phase and out-phase anomalous hollow Gaussian beams in strongly nonlocal nonlinear media (SNNM) is investigated. The analytical expression describing the two beams co-propagating in SNNM is derived. It is found that when two anomalous hollow Gaussian beams separated by a distance...

In High Speed Motorized Spindle for the study, To establish motorized spindle dimensional simplified model In Pro/E and imported in ANSYS Workbench, By setting the related parameters, select the type of grid and division, load and boundary conditions’ computing, Through static analysis and modal analysis...

This research focuses on automatic control strategy of direct air-cooling system for 660 MW thermal power plants. The aim of the controller is to maintain the backpressure in an adjustable range. The speed control policy takes the backpressure to the controllable range by adjusting the running fan speed,...

Bitcoin is a virtual currency based on the P2P network. Because of decentralization, anonymity, stability and other advantages, Bitcoin develops rapidly. In order to cope with increasingly wide application fields of bitcoin, this research designs bitcoin’s payment based on the IC card, which improves...

Aiming at the low efficiency problem of the existing ray tracing algorithm, we design a low-complexity ray tracing algorithm based on the virtual source. In order to reduce the computational complexity, we design a concept-"virtual wall" to reduce the number of walls to be searched. Meanwhile, the depth-first-search...

TimeSynchronization is one of the most important support Technology in WSN,plays an irreplaceable role in the developmet of WSN.For this reason,an improved algorithm based on theRBS algorithm is proposed combination of some classic time synchronization algorithm.Referring to the idea of cluster-based,...

Hydraulic suspension is a common way to support 900t Tyre Hosting Girder Machine. In this paper, the hydraulic suspension system modeling is established under ADAMS/Hydraulics environment. Dynamics simulation analysis is performed on two kinds of road, Class of B and C. Comparing the displacement and...

Introduce the concepts related to multidimensional set sequence database, and in order to mine a special multidimensional set sequence database, in which all the sequences have the same length, items inside each dimension are ordered, and dimensions are unordered, we propose an algorithm of multidimensional...

The full name of CDC is Continuous Damping Control, CDC damper is an important part of the Semi-active suspension system, and its damping force is controlled by a solenoid valve. We put the CDC damper as the research object according to its structure and working principle to establish the corresponding...

Analysis for the dynamic simulation of air suspension, rear suspension of avehicle is selected as the main research object. Related to simplify the vehicle model,the establishment of 1/4 vehicle models in ADAMS. Then according to the passive suspension and air suspension, analysis of the acceleration...

Based on the Solidworks platform, using Visual Basic two development tool,according to the straight shank ball end cutter rake face grinding relationship,establish the simulation machining system, shorten the cycle of design, provide a basis for optimization of grinding parameters for later edge.

With the change of energy conservation and emissions reduction situation, the universal application of building energy consumption monitoring system become increasingly important. After the current situation of public building energy monitoring analyzed, the hardware and software of energy monitoring...

Image retrieval based on the color histogram is one of the technologies based on the content. The processing time of the method is shorter and easy to implement, but its precision need to be improved. In this paper, the algorithm is improved. The same image library is retrieved by the image retrieval...

Mobile radio channel models are essential for the development, evaluation and test of current mobile radio communication systems and also crucial for the realization of the future systems. Nakagami-m distribution is important for channel modeling in mobile communication. It provides accurate characterization...

Traditional methods of sunroof operations involve controllers with mechanic or electric buttons, which produce noises and lack flexibility. This paper devised a controller for electric sunroofs with CAN-USB converters and tablet PCs. The CAN-USB converter was implemented to bridge communication between...

According to the wavelet-neural network algorithm of relay protection device has the characteristics of requirement of high sampling frequency and large amount of data calculation, we use FPGA to realize the algorithm in hardware. A system model is built and converted into VHDL code through the system-level...

The design requirements of brushless DC (BLDC) motor control system are on the increase high with the continuously broaden application fields of it. This paper presents the direct torque control(DTC) drive scheme for BLDC motor. The rationale of DTC for BLDC motor is analyzed and torque error is directly...

The network of smart grid communications (SGC) is expected to be heterogeneous for providing diverse access interfaces. Load balancing is one of the key technologies in such heterogeneous networks, which can increase the system throughput as well as quality of service (QoS). In this paper, a context-aware...

For the reliability evaluation of such expensive and high quality products as those used in aviation and spacecraft, this study gives the two-sided confidence limits estimation of reliability parameters for exponential distribution: average life, reliability and reliability life, in the case of zero-failure...

This document explains and demonstrates how to prepare your camera-ready manuscript for Trans Tech Publications. Digital communication is a very important technology in modern multimedia technology, it makes up the defect analog communication many, many, but in digital communication, signal attenuation...

For MANETs , topology control can enhance the stability of network topological structure. This paper proposes a hybrid strategy to construct a MANETs hierarchical structure, so as to enhance the stability of network topological structure. Simulation experiments show that our strategy performs better...

In this paper, we propose a stability routing protocol to support the stable routing for the solar blind ultraviolet Ad-Hoc network, and to guarantee the efficiency of routing process. The performance simulation analysis confirms the availability and superiority of our routing protocol.

In order to make use of Distributed Generation(DG) flexibly, the novel Integration Micro-grid System(IMGS) based on DC bus is proposed in this paper. The changing rule of photovoltaic array in a day is studied deeply. The control strategies based on droop characteristic are adopted by grid-connected...

To identify the noise sources of truck crane drive axle, noise signal was analysed by improved continuous wavelet transform (ICWT).The results indicate that the noise of the drive axle is directly caused by its surface radiation, which is due to the various dynamic stresses produced by gear meshing....

The paper presents a new control method based on voltage space-vector pulse width modulation, which designed by aiming at the defects in traditional control methods of single-phase inverter power. The system models are obtained by using simulation software Simulink of Matlab. The results are achieved...

By analyzing relative literatures and building a simulation model, this paper finishes the analyzing of fault waveforms and studies fault characteristics from the perspective of signal synthesis.With one-to–many SVM, the image extract features and features is identified to training Sample and recognizing...

An improved controller design method for an inverter operating with extra functions to suppress current harmonics or voltage harmonics is proposed. When at least two of this-type inverters are operating in a micro-grid, they can collaboratively bear current harmonics and voltage harmonics suppression...

For the aim that designing greenhouse structure on computer and simulation virtual environment condition in accordance as reality, in the basis of reality greenhouse basic structure, constructing virtual model of sunshine greenhouse, its main part is decided by several important parameters. The experimental...

Earth capacitance of system line can be matched with inductance parameters of electromagnetic voltage transformer (PT), thereby leading to ferromagnetic resonance in the power system under the condition of instantaneous single-phase grounding and other fault types. Application scope limitations and deficiencies...

Concerning with the energy crisis, solar energy is considered to be one of the most promising alternative due to its zero gas emission. In this paper, a solar fresh air heating system coupled with Latent Heat Thermal Storage (LHTS) tank was designed. The solar energy is employed as heat supply source...