The machinability of Nickel-based superalloy GH4169 is poor, in order to improve machining efficiency, reduce costs, it is necessary to study the various factors that affect the tool wear. In this paper.The tool wear tests were carried out to investigate the effect of an externally applied voltage on...

Annular space has been applied widely in industrial processes. However, the complexity of thermal process and the variety of influential factors lead to the difficulties. In addition, the sensor installation as well as the weak detection signal due to the barrier increases the detection issues. In order...

In aircraft control, getting the current aircraft attitude is foundation that we can control the flight of aircraft.In this paper,MUP6050 and HMC5883L sensors are used to measure aircraft attitude.As time goes on,the accumulation of integral error is growing,when the gyroscope is used to solver aircraft...

As limited by the size and load, multi-array antenna can not be installed in the helicopters to achieve forward-looking SAR imaging. A "bistatic" forward-looking imaging program is proposed, which used a satellite to carry illuminator and a helicopter to carry receiver. Then the forward-looking SAR geometry...

Star sensor is an important part of the attitude control of a space vehicle. At the time of image acquisition, CMOS sensors will have some fixed pattern noise which will affect the image capture effects. From the practical application, this article apply the average of de-noising algorithm to eliminate...

A novel of embedded storage and transportation status monitoring system and sampling terminal node based on ZigBee and embedded technology is designed to acquisition the status parameters of the special equipment remotely in this paper. Wireless transmission network is established by ZigBee technology...

In this paper, a thresholding algorithm combining local and global region is proposed in order to perfect the vision of line-heating robot, segment foreground objects and background accurately, eliminate environment effects. The thresholding method combines the advantages of both local and global threshold...

Fuse is the key part of detonate control, and it’s state determines the weapon whether can accord to the scheduled model of initiation to achieve the objective of the damage or not. To achieve the best effect of damage, the fuse detector are used generally to detect whether the performance of fuse...

Train control system can achieve automatic control in the whole process or the part of process. The data of train control system in role is irreplaceable. Keeping train control system’s data transmission and exchange real-time and accurate, can make train safe. Completing the automatic generation of...

To contact constraints model of soft finger, replacing paired friction cones by linear paired polyhedral, so as to realize the linearization of contact constraints model. The linear constraints inequalities of grasping forces is derived, and the objective function of the smallest sum of output torque...

With the prosperous development of the next generation Internet technology and the rapid popularization of intelligent ends, cloud media will shift from "one cloud end, multi-screen" to "user-centered" "endless interaction", becoming the next transformation of Internet and serving the world more extensively....

ZN-35 silicone rubber is a kind of effective vibration damping material in aerospace, which can be made into a vibration damping pad for preventing vibration and damage to important components in the rocket. In this paper, the energy storage modulus and loss factor of ZN-35 silicone rubber materials...

Influences of length, injected optical power, internal loss, differential gain coefficient and back facet reflectivity on remodulation in RSOA-based WDM-PON are investigated. The remodulation effect can be improved by optimizing structural, operating and physical parameters.

Modulation mode recognition has always been a major subject for domestic and overseas research scholars engaged in the receiving processing of satellite signals. The paper analyzed the high-order cumulants, characteristic parameters, square spectrum and quadruplicate spectrum of 5 most common modulation...

In this paper, a high-speed real-time spectrum analysis system based on GPU parallel computing was developed for the real-time requirements in the application environment of satellite communication spectrum monitoring. The system adopts high-speed ADC and high-performance FPGA as real-time signal acquainting...

From the perspective of information integration, as an example, this paper implements the integration of the central station of a satellite communication network, both horizontally and vertically. It proceeds from the satellite communication terminal equipments, redesigns connection between interfaces,...

The paper introduced the composition of a spectrum monitoring system based on MongoDB’s distributed database system, analyzed the key issues of the data management system design which should be resolved with special focus and provided specific storage solution design based on MongoDB with high performance...

Signal-noise ratio is an important parameter in modern wireless communication systems and an important indicator to reflect signal quality. An accuracy signal-noise ratio can provide signal quality information required for power control and channel decoder, etc. This paper proposes a blind signal-noise...

An appropriate modulation scheme SC-PPM is considered in this article for the high density visible light communication (VLC) system. Compared with OOK, SC-PPM is a more power efficient and reliable scheme and it can achieve the requirement for both illumination and communication. An optimization problem...

In the field of data mining and pattern recognition, classification is a very important core technology. This paper present two kinds of improved classification algorithm. Using the improved Naive Bayes (NB) and KNN algorithm structure classifier to filter normal mail and spam. Improved NB algorithm...

In the field of underwater acoustic field, a good sonar data real-time display system plays an important role in the whole sonar system. This paper is based on a fact that the sonar scanning an image is formed by a fan-shaped which has a certain angle and the sonar image display is usually realized through...

The Naive Bayes classifier is built on the assumption of conditional independence between the attributes in a given class. The algorithm has been shown to be successful in text classification. But when calculating the conditional probability these methods take two different words as two different feature,...

The phenomenon of "low-resistivity" gas reservoir and "high-resistivity" water reservoir exist side by side, rapid changes of longitudinal resistivity of the water reservoir and gas and water mixed reservoir in the Su 54 area of Sugeli gas field which caused gas-water identification difficulty. First,...

Many quantum communication protocols involve multiple participants. With participants increasing, selecting designated legal participants in a nice way becomes more and more significant. In this paper, we develop a quantum route selection approach to the design of participant selection. Graph state is...

In this paper, based on the classic SIR epidemiological model, we consider introducing hybrid immunization strategy including targeted immunization and acquaintance immunization to research on the proportion of infected nodes when the spreading of disease ends and the time steps of disease spreading....

The ever increasing complexity of avionics system and amount of platform devices makes allocating the IMA resources more error-prone and harder to evaluate. This paper proposes a method of preliminary design of IMA platform based on models. The definition of system and platform respectively bases on...

In the paper, the mathematical statistical method is adopted to build a storage life prediction model of missile equipment. Data "mutation" and confidence area appeared in the process of the model parameters determining and life predicting are discussed, and several improved decoding algorithms for inefficient...

The integration of heterogeneous database as the important problem of heterogeneous data integration is catching more and more emphasis by the people. This paper will analyze the character of the heterogeneous database, and propose the scheme and strategy to realize integration of heterogeneous database...

Quality monitoring is a critical way to ensure quality of missiles and is valid guarantee for capability of missiles. The paper studies the constructive problem of a system of systems of life cycle quality monitoring for land force strategic missile in terms of the characteristics of missile equipment....

In vehicular ad hoc networks, the typical problem broadcast storm always happen when vehicles are usually located quite densely within the range of radio transmission. In the paper, a novel emergency message broadcast game is proposed and the game takes nodes’ density and link quality into account,...

This paper proposes a novel foot-pad omni-directional locomotion interface, establishes planar walking algorithm for it in detail. The proposed locomotion interface allows users walking omni-directionally in a virtual environment, which can improve users’ immersion characteristic significantly. The...

The current methods of software behavior risk prediction is mainly through the study of the operating rules from the data of the other software of the same type, and that leads to differences between the prediction results and the actual software behavior. Aiming at this problem, this paper presents...

Dynamic state estimation of power system is a sophisticated problem since voltage and current phasors under dynamic conditions are nonlinear and hard to be obtained. This paper presents a new power system dynamic state estimation method using Extended Kalman Filter (EKF) based on Phasor Measurement Unit...

Cloud computing, as a newly emerged service oriented paradigm, is emerging as a leading solution for on-demand services. One of the challenges faced by current cloud is to decide how to migrate virtual machine to another physical machine. This paper presents an energy efficient virtual machine migration...

In respect to the difficulties in power supply for online monitoring equipments at high voltage side, a new design of adjustable and rechargeable induction power supply is presented. A microprocessor is used as the central control unit, which can achieve the intelligent management and control of different...

Network security situation prediction can help network administrators to make security decisions, and the current network security technology cannot predict the future network security situation. Hereby, a network security situation prediction based on incremental wavelet neural network (IWNN) was proposed,...

Traditional internet data center is shifted to cloud computing data center with rapid development of mobile Internet and cloud computing currently. Cloud computing network burden is aggravated as a result. More optimal cloud computing network architecture is required for replacing traditional cloud computing...

Vibrating wire gages have earned their well-deserved acceptance on the basis of long term stability. But it is susceptible to external electro-magnetic noise. Anti-interference ability is the main study of various detection methods. Traditionally, time-domain approaches have been used to determine the...

To further improve the performance of CMA blind equalization, an improved algorithm with variable momentum controlled by equalizer weights energy was proposed. The momentum gradient algorithm can improve the convergence rate effectively. However the additional gradient noise would produce by momentum,...

For a class of uncertain discrete-time system with time delay and actuator faults, a state feedback controller is designed based on passivity control method. The possible failure of each actuator is described by a variable varying within a given interval. Our aim is to design a reliable state feedback...

This work establishes an air spray model using the Eulerian multiphase model, and analyzes the spray cone shape and characteristic of paint droplets in the cone by performing computational simulations. Results show that the cross section of spray cone is elliptical. The distribution of big droplet phase...

DSRC plays an important role in current V2X communication market, but its performance in real environment is still not very clear which raise potential dangerous to both the passengers and the vehicle factory’s business. It’s important for the vehicle designer to know the communication performance...

In this paper, the symbol error rate of distributed MIMO antenna systems in a linear cell is analyzed. Firstly, a composite channel model which includes the fast fading, shadow fading and path loss is established. Then, a closed form expression of symbol error rate for point-to-point downlink MIMO communication...

Limited by the properties of infrared detector and camera lens, infrared images are often detail missing and indistinct in vision. The spatial resolution needs to be improved to satisfy the requirements of practical application. Based on compressive sensing (CS) theory, this thesis presents a single...

Personalized information recommendation service of library had becoming an important research task. This paper divided library users into new users and other users. It proposed the recommendation strategy based on user segmentation. On the base of these, it designed a personalized information recommendation...

Adaptive algorithms are widely used for acoustic echo cancellation (AEC). In this paper, an efficient switching tactic with advantageous features of NLMS and APA is proposed for AEC application. Switching points are decided by employing a smart voice activity detection scheme based on speech utterance....

In this paper, we investigated the performance of multiple elements array system such as receive power, signal correlation, channel capacity, and etc., in the presence of mutual coupling based on microwave network theory analysis. Combining S-parameter method and network analysis, the performance of...

Spam, under a variety of shapes and forms, continues to inflict increased damage. Varying machine learning techniques have played an important role in spam filtering field in condition that ample training data is available to build a robust classifier. These methods include Decision Tree, Support Vector...

A novel implementation of encryption algorithms based on FPGA gates is described in this paper. The encryption algorithm is focused on different FPGA devices with the same number of cascaded NOT gates but have different time delays to signals. The cascaded NOT gates are achieved by programming. These...

Segmenting individual trees from the forest point cloud has significant implications in forestry inventory. This paper presents a novel computational scheme to segment and cluster the 3D point cloud data acquired by an airborne LiDAR. The scheme employs a mean shift-based iterative procedure on the data...

Coplanar capacitive sensors have been widely applied in many fields with its characterstics of non-invasion, lowcost and fast response. Length and width of sensor electrodes, excitaion frequency are considered to affect the performance of the sensor. In order to improve the sensor performance, and to...

There are a lot of information and network security threats along with the rapid development of Internet of things (IoT). This paper according to the environmental features of the IOT node limited hardware resource and its requirements, and takes aim at the privacy information security issues for the...

Aiming at the collision problem of RFID tag communication，we proposed a new method for identifying the RFID recognition of the blind separation of source signals, which is based on the label collision and recovery. In the case that the number of tags is more than that of the reader,we established a...

The design of radar signal analysis was presented in this paper, adopt the method of cable collection, wireless transmission, realize the radar signal test online. established the database of test nodes, board card, Subsystem combination, the fault relationship, structure, circuit diagram, maintenance...

In view of the problems of poor equipment mobility and limited transmission distance when the existing hospital medical equipments transmits data to the hospital information system through wired connection, a type of wireless communicating and sensing module for medical equipments was designed, which...

Smile recognition has recently attracted significant attention due to the increasing accessibility in some digital products. Traditionally, the mouth feature has been extracted for smile recognition. However, it only extracts the features in the mouth region, ignoring the fact that face feature contribute...

in this paper, the ionospheric detector receiver analog channel are analyzed, and comb out the different kinds of common failures, due to the fault has the uncertainty and inaccuracy of how to modeling the ionosphere detector fault reasoning, and how to the ionosphere detector is a key problem for its...

the ionosphere detector is the ionosphere detection equipment, its can be long-term, effective and stable operation, relationship can effectively the ionosphere normal detection. Therefore, it is imperative to research on fault diagnosis of the ionosphere detector, this paper mainly analyses its transmitter,...

According to the nowadays production conditions of JinLin province, The effective system was developed by utilizing the knowledge of agricultural production, computer science and internet technology and so on in the paper. In order to reach the aim, the author combined theory model and quantitative research...

In order to realize the intelligent scientific farming, multimedia rice production intelligence system was developed. The study to the water in the rice planting, fertilizer, soil, pests and diseases, weeds and other field management as the breakthrough point, using computer technology to realize the...

The combined overvoltage protection is a new type of overvoltage protection devices. Its principle and performance are the same as conventional lightning arrester. It also has unique advantages. Phase combined over-voltage protection can limit the over-voltage between phase and earth.While it can limit...

This paper based on the concept of direct lightning and induction thunder introduction, discusses the direct lightning in the calculation formula and its size (lightning over voltage amplitude is generally higher, up to tens of thousands of volts). In this paper, the calculation formula and the magnitude...

This paper's aiming at the standard transformer stage that they don’t have the obvious position for hanging a grounding line. For solving the problem, and develop a kind of special grounding line for the standard transformer stage. The grounding line is the copper mesh structure of three layer hollow...

his paper discusses the problems existing in the use of drop-out fuse: due to wind swing and other reasons, the bonding point of Cu-Al contact is easy to break, which may lead to the malfunction; the actual contact area between under contact and Cu-Al contact in transformer lead wire is insufficient...

This paper analyzed the content and distribution of Cadmium (Cd) in surface waters in Jiaozhou Bay in 1984. Results showed that Cd contents in the study area ranged from 0.06-0.20 μg L-1, and were meeting Grade I (1.00 μg L-1) in National Sea Water Quality Standard (GB 3097-1997), indicated that this...

Based on investigation data on petroleum hydrocarbon (PHC) in June, July, September and October 1980 in bottom waters in Jiaozhou Bay, we analyzed the content and distribution of PHC. Results showed that PHC contents in June, July, September and October 1980 in bottom waters were 0.028-0.147 mg L-1 and...

Based on investigation data on petroleum hydrocarbon (PHC) in April, August and November 1981 in bottom waters in Jiaozhou Bay, we analyzed the content and distribution of PHC. Results showed that PHC contents in April, August and November 1981 in bottom waters were 0.028-0.123 mg L-1 and were meeting...

In this paper, firstly, the non-linear longitudinal modeling approach is proposed based on the geometric shape of the typical structure of the hypersonic vehicle as the research object, combined with correlative hypersonic aerodynamic theories, and then local linear models are established near multiple...

This paper refers to the HAPC of 400mm single stand reversible cold rolling mill, establishing mathematical model, simplifying and reducing orders for system transfer function on the foundation of reasonable assumption. This paper also designs PID and LADRC for reducing order model and uses fuzzy adaptive...

PEMFC (proton exchange membrane fuel cell) Stack temperature control system is a strong-coupling system with characteristics of time-change, long-hysteresis, uncertainty and nonlinear. The dissertation studied PEMFC stack temperature control used by BP neural network controller which has a good control...

In the electric energy metering device, due to errors of a current transformer or a voltage transformer phase sequence and polarity, wiring false often happens in the electric energy metering device. It affects the accuracy of electric energy metering device and results in inaccurate metering. For this...

Through the analysis of TN-C and TN-S connection mode, this paper expounds the advantages and disadvantages of TN, the voltage distribution of the load is introduced through an example, and further introduces the necessity of developing neutral wire over current alarm device in the distribution network,...

Grounding technology plays an important role in ensuring safe and reliable operation of the power system and the personal safety. Grounding resistance as an important ground parameter, dictate the degree of electrical safety. This paper introduces the basic principles of testing the grounding resistance,...

Aiming to the problem of running with the capacitor bank balance protection action causing tripping, by on-site analysis of the phenomenon and the capacitor discharge coil voltage ratio test checks, secondary coil voltage has relatively large errors caused by the tapped discharge coil. When the system...

In this paper, the influence of distribution line tripping is analyzed by means of the combination of distribution line tripping case, from equipment, user influence, external factors and natural factors. Power distribution line tripping accident occurs, which affects the economic benefit of power supply...

With the rapid development of substation automation and network communication technology, IEC61850 standards promulgated and implemented, the traditional substation has been a gradual transition to the smart substation. In the collection intelligent substation energy measurement technology realized the...

This paper introduces several common shortcomings of work gloves in electric energy measurement, and focuses on the disadvantages of the spandex gloves; it expounds the method and technique principle of multifunctional gloves for electrical work and introduces the main parameters and field application...

Switchgear charged for fault detection, principles and methods the live test from switchgear partial discharge, analyzes the use of ultrasonic detection assays and transient voltage for the switchgear cabinet feasibility of fault diagnosis; using a combination of switchgear partial discharge founding...

This paper mainly explores problems in the test of surge arrester. In the test, because of the restriction of the field condition, the lightning arrester can not be fixed, and the requirement of the test condition is not satisfied. Can not guarantee the operation safety, the work efficiency is low, the...

The purposes of measuring the transformer load losses and short-circuit impedance are checking whether they can meet the standard requirements. The traditional transformer short circuit test method were analyzed in theory and combined with engineering practice, how to improve test methods have been researched...

This paper introduces a universal SF6 gas sampling interface device. When we test the SF6 gas, it was easy to choose a wrong joint or take fewer joints on spot. Due to the variety of the tested device valve, through the field usage situation, this device solves the defects of different type or manufacturer...

As a special commodity, electricity has the characteristics of the being produced and used at the same time and it is not physical visible. In order to avoid the loss in circulation of electricity, we should have a thorough understanding and accurate recognition of “power”. The watt-hour meter measuring...

Based on the development and application of the first 220 kV smart substation at Liaoyang Power Supply Company of State Grid Corporation of China and substation automation abroad, this paper expatiates the necessity of intelligent substation equipment and the composition and characteristics of the smart...

With working frequency voltage and current, mutual inductance voltage up to 30kV and mutual inductance current up to 50A, measuring instruments can not offset mutual inductance voltage and mutual inductance current interference. The current test mutual inductance parameter must be the same poles of two...

This paper analyzes the principle and test method of the grounding resistance. According to the analysis and calculation of the lightning accidents, prove the relationship between counter attack lighting and the grounding resistance. We also describe the basic principle of grounding resistance test....

Combined with the actual set of concrete measures are for preventing the transformer screens dendritic discharge fault. Aiming at the 220kV main transformer screens dendritic discharge fault, introduce the basic process of screens dendritic discharge failure occurs, proof insulation damp and gas is the...

In order to improve the fault detection and diagnosis infrared effect, describes the fault type infrared detection equipment; analysis of the factors affecting the accuracy of the temperature measurement; analysis approach proposed in addition to proper use, it also must be on a variety of factors that...

In this paper, the explosion accident of a 220kV current transformer in a 220kV substation is studied. It uses method of scene investigation and test to analyses the accident based on the principle and characteristics of current transformer. Through the analysis, this paper holds that reducing in main...

There is a clear boundary between primary and secondary devices in traditional substation. The intelligent demand of intelligent substation is analyzed. According to the design idea and method of intelligent substation, the integrated application scheme of the disconnecting circuit breaker, intelligent...

In recent years, the national renewable energy industry policies and incentives, Liaoning wind power has developed rapidly. However, the Liaoning Province endogenous wind power grid connected capacity increases year by year, squeezing annual utilization rate of the thermal power unit in the province....

In the paper, the antiaircraft missile is assumed as the researched object, and its inefficient factors and storage reliability is focused to be analyzed. The weaknesses of storage of the antiaircraft missile could be confirmed with its inefficient factors analysis of storage, reliability analysis of...

In order to solve the communication problems involved in acquisition system based on CompactRIO. Analysing data collection from FPGA terminal to RT terminal and elaborate RT terminal and PC terminal communication method. Comparing the merits of the single point polling acquisition model and collection...

Plant bioactive polysaccharides and the products of organisms are the hot focus of present research. They play various biological roles, one of the most vital of which is enhancing the immunity. Relationship between immune substances and disease has been confirmed through lots of studies. The immune...

Immunomodulatory peptides play an important role in immune response. Researchers acquired activity peptides from natural food protein by enzymatic hydrolysis and the most commonly used enzymes are Alcalase. In this paper, the mechanism of immunomodulation was summarized briefly. The peptides charge,...

A kind of integrated machine was designed for community science popularization. It was built rich digital science resources, and information resource was customizable, updated quickly and targeted. So as to meet the individual needs of community residents. The integrated machine used touch screen, and...

For the order planning problem of parallel production lines in hybrid process manufacturing enterprises, a novel solving method of parallel production lines coordinating scheduling is developed based on bi-level programming theory. To maximize gross profit of unit output as upper level optimization objective,...

The antioxidant capacity of peanut shell polyphenols interacted with pancreatic α-amylase is examined in vitro. The results indicated that peanut shells polyphenols could be used as a kind of potential natural antioxidant for food. The polyphenols easier binding to proteins made its scavenging activities...

This study developed a method to extract polyphenols from peanut shells by ultrahigh pressure (PPSUP). The yield of PPSUP was up to 71.3 mg of gallic acid equivalents (GAE) /g under optimizing extraction parameters of ultrahigh pressure to 75% ethanol, 300 MPa, 4 min, 1:25 ratio of material to liquid....

Cotton fabric was dyed with C.I. Reactive Black 5 with different dye mass, followed the treatments of soaping, dye fixing, and wet rubbing improving. The wash fastness, rubbing fastness, and colour uniformity of dyed cotton were inspected. The results show that the entire utilized textile auxiliaries...

The transmission is widely used in various sectors of the important machinery and equipment, In this paper, based on fuzzy clustering analysis, the module of transmission is studied. Construct transmission components function and geometric correlation matrix, corresponding to the fuzzy equivalence matrix,...