For the information security issues of cloud computing, this paper studys the security management methods of cloud computing authorized user, analyzes the vulnerabilities of OTP and proposed security authentication scheme based on OTP authentication.This authentication enables two-way authentication...

Calibration is an important operation in the instrumentation industry for determining the relationship between the output(s) (or response) of a measuring instrument and the value of the input(s). This paper proposes a nonlinear calibration method based on least squares support vector regression (LS-SVR)...

With the rapid increase of urban population and rapidly widening scope of the city, the newly built residential areas emerging or leading to the existing bus lines could not meet the needs of the people’s activities. The phenomenon of the traffic congestion is becoming more and more serious. [1] According...

In communications engineering, we often encounter some problems of the data analysis and processing aspects, therefore analysis of engineering data throughout the project has become a crucial part. LabVIEW is a program development environment, it is developed by National Instruments (NI) company developed,...

The paper introduces the design for domestic harmful gas detection device. By choose the corresponding sensor, and obtains the harmful gas information; the operation amplifier amplifies the signal. The MCU employees the ADC to get the digital information and read the alarm value set by the user, and...

Computer network technology has been popularized in social development, and it plays an important role in various fields. In order to adapt to and promote the development of colleges and universities, it is necessary to improve the efficiency of university archives management. It is necessary to adopt...

This paper provides comprehensive coverage of the theories research connected with the provision and management of electronic resources in libraries to show us with comprehensive coverage of the core topics related to electronic resource methods. Digital library is an extension of traditional library...

In the one-sample location problem, it is tested whether the center of the whole is equal to a known value, otherwise whether there are significant differences between two samples is in consideration on pratical situation. In practical problems, there are many simulations where two general parameters...

In this paper, the design of comprehensive laboratory related to the major of measurement and control technology and instrument in the Meteorology and Oceanography College of PLA University of science and technology was elaborated detailed. Combining with the characteristics of facing to the atmosphere...

Commissioned by an aquaculture company, a remote monitoring system based on Internet of things technology was studied. It takes the Mega2560 processor as the core, the WiFi wireless RF data transmission as a means, the application of computer management, display software and networking platform will...

A generalized model for determining minimum-cost preventive maintenance schedules of a maintained reliability system is presented. Through balancing the cost of system failure during operation against the cost of planned maintenance, an optimal policy is established which minimizes the expected cost...

Multiple-Input-Multiple-Output (MIMO) radar is recently the focus of radar research, which transmits different waveforms to illuminate the target from different antennas simultaneously. However the cross correlation of the waveforms may lead to interference between receiving signals. In this paper, we...

According to TOC, there is at least one constraint on any system, or it may have unlimited output. Therefore, in order to improve the output of a system, the constraint of the system must be broken down. In this paper, the production process of M company is analyzed by means of Method and Time study....

Projected capacitive touch screen has the advantage of wear-resistant, high transmittance, long life, low power consumption, high sensitivity, noise rejection capability and support for multi-touch .This paper studies the related technologies of projected capacitive touch screen system: full touch point...

This paper mainly compares and analyses ranging technology of communication signals and navigation signals respectively, and introduces the integration of terrestrial mobile communication base station navigation and positioning technology. Also it focuses on how to achieve precisely ranging based on...

An improved spectrum shaping iterative algorithm is proposed in this paper in order to solve a wideband waveform design. The spectrally constrained condition is set up before an optimally initial signal is obtained by constraining the amplitude spectrum of the input initial signal. With which, an existing...

According to the water quality monitoring need of Three Gorges Drawdown Areas on automation, systematization, we design the overall framework and develop the water quality online monitoring software [1] for water quality online monitoring system based on the Internet of things (TOT) and ArgGIS. The online...

Aiming at the current mariculture problem ofbackward environmental monitoring technology, design amonitoring system base on ARM processor STM32F103ZET6 and RF chip CC2530. Using wireless sensor nodes to collecttemperature, pH value,dissolved oxygen and other informationin Sea culture zone. Through the...

This project is based on the installation of intelligent electric ammeter, researches on power consumption management of rural irrigation. It can solve some problems in the rural irrigation power consumption management, can make a breakthrough, research results will provide theoretical and technical...

Closed frequent itemset is a perfect representation of frequent itemset. This paper tries to find an efficient solution to mine the closed frequent itemsets over databases by sampling technique. We employ the SCFI tree to record the data synopsis of the frequent itemsets, and propose an efficient algorithm...

Based on the analysis of the cruise booking and price data, this paper studies the problem of the cruise pricing based on the forecast. This paper builds on the voyage each week booking GARCH, accommodation was predicted, and achieved ideal effect.

In order to reduce the induced voltage of the metal sheath of high voltage single core cable and reduce the excavation area, so as to increase the transmission efficiency and reduce the cost of the project, this paper studies the induced voltage of the cable line under the condition of the laying area....

Heavy metal pollutions of soil is one of the serious problems in the mining tailing areas, therefore, it is significant to estimate heavy metal of soil in the mining tailing areas. This research take Jinduicheng Mo mining tailings, Huaxian, Shaanxi Province as the study area. A total number of 288 soil...

Recently, the grid-connected photovoltaics power stations are extensively installed. Nevertheless, to save the maintenance time, improve the safety performance, solve the complexities of traditional overhaul methods and eliminate restrictions further research is needed. Therefore, in this paper, a method...

This paper proposed a mould modification algorithm based on improved Fast Fourier Transform. The wavelet transform and Fourier transform are used to solve the shape transfer function of the springback closed-loop control system. Through the shape transfer function to predict the mould surface shape corresponding...

This manuscript represents a triggering device applied on long-gap triggered vacuum switch. The time delay between the optical signal and the pulse current is about 100ns. From the image of the initial plasma captured by the high speed camera, the triggering device presented in this manuscript is reliable.

In LEO (low earth orbit Laser communication) engineering, there is a demand to design a power system of high-reliability, to ensure the life of the LEO and reliable operation. The DC/DC has been widely used in the secondary power supply in LEO engineering with its high reliability, high integration and...

According to the high dimension of security event feature and the difficulty of security event autonomic perception in the age of big data, a novel Internet of Things ( IOT , for short) security event perception model based on Autonomic Computing and Principal Component Analysis (PCA, for short) is proposed,...

In this paper, we propose a novel comprehensive merging scheme in collaborative spectrum detection (CSD) to achieve better throughput performance, considering the diversity of the reporting channels. Unlicenced users (UUs) with good reporting channel quality transmit quantized self observation statistics...

With the enhancement of the intelligence on mobile phone, various mobile phone APPs targeted at college digital campus have also risen in response. Based on the current situation of the digital campus of Hezhou College, the development of the college campus mobile phone APP“HeYuanTong”has been taken...

Foucault's discourse include the following control principles: exclusive program of verbal taboo, the distinction between reason and madness and the truth will; Internal program of comment principle, the principle of the author, the discipline organization; The principle of the third group limited words...

This design combines the advantages of CDR CDR circuit two structures PID and PI-based clock data is based on the structure of semi-digital dual loop recovery system. Using TSMC-0.25 m CMOS process to achieve the PLL design, the operating frequency range of 1.6-2.7GHz, and successfully applied a SERDES...

Recent years, with changes in energy security, climate crisis, environmental protection and other social environment, investment and construction of the electricity market must be improved on the basis of the original design on the market to adapt to the new trend of social development. Based on a series...

Switched System is an important method of analyzing the Hybrid System. CTCS-3 is a typical Hybrid System. To express the evolution of system states driven by events and time, Switched System is introduced into the analysis of CTCS-3. Meanwhile, the CTCS-3 has many operating modes. When the operating...

According to basic electromagnetic theory, the response of a capacitive sensor depends on the structural parameters of the sensor and the dielectric permittivity between the plates. Here, the effect on the response of a capacitive sensor is investigated by changing its structural parameters. In the experiments,...

Efficient enhancement of photoluminescence from Er/O-doped silicon (Si) on silicon-on-insulator (SOI) wafer in two-dimensional (2D) airbridge symmetric slab hexagonal photonic crystal (PC) gradient double-heterostructure microcavity has been demonstrated at room temperature. A single sharp resonant peak...

The main characteristics of solar sails are their large size and the extreme flexibility which have a prominent effect on the attitude control of the solar sail. Most existing researches on dynamic analysis and the control law design of solar sails are only based on the rigid dynamic models. In this...

As one of typical paravirtualization hypervisors, Xen has received widespread attentions especially its scaling capability under some kinds of workload. In this paper, we focus on the problem that the most CPU resources are occupied by frequent interrupt from the NIC(Network Interface Card) and it will...

Stock composite indexes prediction is an important issue in the financial world. A back propagation neural network (BPNN) with mind evolutionary algorithm (MEA) developed for the prediction of prices on Shanghai Stock Exchange is presented. The optimum weights and threshold values of BPNN are determined...

Like any other forms of decision analysis that involve multiple criteria, project selection is an unstructured, complex decision problem with lots of aspects that must be taken into consideration. A hybrid method combining fuzzy analytic hierarchy process (FAHP) and the technique for preference by similarity...

Aiming at the problem of low efficiency and low accuracy of traditional interpolation algorithms, a new numerical control interpolation method—velocity interpolation, is presented in this paper. The realization steps of the quadratic curve in the numerical control system are described. Through the analysis...

The kinematic model of industrial robots is the transformation between the working space and the space of joints. After analysis of the kinematic methods in the area of linkage mechanisms, the kinematic model was established according to DH method for a 6-DOF industrial robot. To verify the kinematic...

Bayesian network is a common probabilistic graphical model. It often can achieve good result in expression of uncertainty for knowledge and regular as well as in data classification. Since Bayesian network construction is a relatively complex problem, we propose a Bayesian network construction dimensionality...

Opportunistic network is a self-organization network using the meeting opportunity of nodes movement to achieve network communication. There is no complete path between the source node and the destination node in this kind of network. A lot of routing algorithms are proposed based on this network, which...

With the rapid development of power electronic technology, power electronic equipments with inverter devices as the main circuit structure are widely used, producing numerous harmonics and having a harmful effect on power grids and electricity equipments. This paper uses the improved genetic algorithm...

The goal of this model is to optimize the eradication of Ebola, which has been increasingly severe since 2014, causing more than 8966 deaths. Without effective control, human society will face a serious threat. This paper primarily addresses the problem by predicting the trend of Ebola transmission using...

For the power system economic dispatch problem, this paper takes the power system generation fuel cost as the objective function, and take into account the net loss of the power system. At the same time, it neglects the valve point effect in the process of the generation and establish power system model...

The association rule mining is one of the main technical data mining, the existing association rule mining algorithms based on support - confidence framework, there are many issues of double counting and traversing the database when the user adjusts the threshold. The paper maintains support for the...

In the light of the characteristics of electricity measurement automation system in Power Company the safe protection system is researched from the three perspectives: master station communication channel and terminal equipment As for master station the safe protection system is formulated in accordance...

Gas Insulated Switchgear (GIS), as important equipment of power system, provides primary guarantee for its security and stability. Therefore it is significant to monitor the operating status and working performance of GIS. In this paper, a comprehensive online monitoring system of GIS with a multi-layer...

Fast development of smart grid has made it essential to promote the intelligent level of electrical equipment. As circuit breakers is an important kind of control and protection equipment in power system, its on-line monitoring and fault diagnosis are significant parts of electrical equipment intelligence....

With the development of power grid, electrical equipment is required to be more and more intelligent. In this paper, a fault diagnostic method combining weighted degree of grey incidence of optimized entropy algorithm and Kernel Fuzzy Cluster Method (KFCM) is proposed. By extracting characteristic values...

Hydraulic power chuck clamping force has been the main factor of the precision ultra-precision machining precision of modern CNC machine tools. To solve this problem, the designed wireless sensor system can achieve the real-time detection of chuck dynamic clamping force. The system can provide on-site...

In most real-world industries, scheduling is processed in a stochastic and dynamic environment, it is necessary to generate a schedule which is suitable for the current system states. Dynamic scheduling solves unimplemented jobs and updates an existing schedule based on the real-time information with...

In order to get the accurate resistance of planning vessel at high speed, we should consider the hull gesture variation during voyage. Based on CFD, coupling solves RANS and ship motion equation to capture the ship navigation attitude and resistance. The numerical calculation gets the resistance and...

The increasing number of colleges and universities library books makes users' difficulty of choosing interested books becoming much higher. This paper proposed the research of Intelligent recommendation system based on the user and association rules mining for books. The model integrates the advantages...

This paper presents a novel visual saliency guided high resolution remote sensing image change detection (CD) algorithm. This approach is based on closed-loop process made up of the three procedures. (1) Generating the difference image as the foundation for further processing; (2) Use the modified saliency...

In recent years, due to the Android system, good openness and portability features, Android mobile phone system was able to end the rapid popularization and rapid development, providing a major service on the Android platform based on the Android platform for mobile software that is Android APP. Meanwhile,...

On the energy saving of existing buildings must be used in the preparatory work, planning is the priority among priorities, analysis of what period of residential buildings for energy saving in the economy is reasonable is an important task for the planning stage, the key to the transformation of the...

The solar chimney and the solar collector are two important components in solar energy engineering. Solar collector is mainly used to gather solar energy. Correspondingly, the angle at which the solar collector receives the maximum solar radiation is its core parameter. While for the solar chimney, solar...

Comprehending deeply multiphase flow in saline aquifers is a precondition to solve the issues in the CO2 geological sequestration and the wettability heterogeneity is one of the main factors affecting the CO2 multiphase migration. In this paper, a Shan-Chen-type model (lattice Boltzmann method) is used...

This article analyzes the complex time constraints such as time window visibility and attitude transition time of the single-orbit image scheduling problem for agile satellite, establishes a constrained optimization model and proposes a memetic algorithm to tackle this NP-hard problem. In our algorithm,...

In recent years, there is more and more debate about adherence and improve the system of tobacco monopoly or abolish tobacco monopoly system. With the increasing competition in the international tobacco market, it makes China's tobacco industry have received the unprecedented challenge. In the face of...

this article does research on the application web log mining technology in network resources of ceramic information. Through the analysis and pretreatment of the raw log data, and then relevance analysis of the information in WebPages, the structure of ceramic enterprise website is optimized and the...

In order to solve the problems of ground fault line selection in distribution network, the article presents a fault line selection method based on the similarity of the wavelet packet energy spectrum. After extracting a certain data of transient fault zero-sequence current by the wavelet packet decomposition,...

In the paper, a feasible mode control model based on Fourier Optical analysis is proposed to increase the transmission capacity of optical fiber communication. Our model combines fresnel diffraction and 4f system to implement mode control, where the phase-only spatial light modulator is employed as a...

This paper studies the moving object tracking technology for sports video and puts forward an optimized hybrid tracking method. First, particle filter algorithm is adopted to predict the position of moving target, and then compute comparability between object model and object on the estimated position,...

The data synchronization between all the regional dispatching system under the dispatch control center and power dispatch control cloud has been realized. The data information from each region such as real-time data, manipulate data, model data and graph data firstly is sent to the communication server...

This paper deeply studied the performance data of the power transmission network, selected indicators parameter in the characterization of the running state of the network. By analyzing the factors that affect the time series, a trend forecasting algorithm of network performance based on time series...

Insects, due to their diversity, are the largest group of creature on earth, many of which are yet to be discovered right now. As the photographic hardware develops and gets pervasive rapidly, insect images or pictures have become an important approach for insect researchers to conduct scientific study....

In order to finish the liquid steel funnel work,the laser cutting process have been used to deal with semi-finished product,which has been stretched to given size.The cutting machine control system adopt xin jie PLC and servo moto to finish the cutting system.The whole cutting process involves 3 servo...

WebRTC (Web real-time communication) achieves a peer-to-peer real-time multimedia communication on web. This paper researched and analyzed the core architecture and related technologies of WebRTC, including video input and output, multimedia transmission, the process of peer-to-peer connection establishment...

It is rather difficult to store and manage the diverse data source of ecological development of Dianchi Lake basin through traditional RDBMS due to their various types, massive data, complex relationship as well as their dynamic changes. We established graphics database and visual query system to analyse...

This paper measures the infrasonic signal of a Satellite Launch event and analyzes the signal characteristics. Using four infrasonic sensors to finish the satellite launch event monitoring tests, the experimental results show that difference between the infrasonic signal of satellite launch event and...

Customers often complain a vehicle noise although the interior noise A-weighted sound pressure level has reached the same level of excellent vehicle. To solve the problem of large interior noise and messy sound of an own brand SUV, relative approach analysis is utilized, which is detected the frequency...

On the basis of mirror reflection characteristics, the article analyzes the relation between the space plane that rotates about a point and reflective light change, designs mirror reflection and orientational irradiation automatic tracking control model, establishes signal conversion equation, drive...

Data mining clustering is a broad research field. It is used to partition the data set of clusters. Different clustering methods use different similarity definition and technology. Several popular clustering algorithms are analyzed from three different perspectives: the clustering criterion, clustering...

Recent years social media swept the world, changed people's consumption behavior and lifestyle, and become a mainstream Internet applications. At the same time social media generate a lot of user data, let us be more realistic and comprehensive understanding of the structure, the personal information...

Cloud computing is a business model. It distributes computing tasks in a large number of computer resource pool configuration. It can provide on-demand for the user computing power, storage capacity and application services capabilities. Cloud computing offers a cheap and efficient solution for storing...

Web page requests is the common way for applications to implement human-computer interaction, but full page refreshing of the page reduces the effects of users ‘experience, increases the pressure of servers and slows down the speed of program response. Partial update pages with AJAX asynchronous transfer...

This research analyzed the potential emotion by sentimental analysis in large volume of financial text documents about Taiwan electronic industry to predict the stock trend. In recent researches about sentimental analysis, supervised method was proven to be able to reach high accuracy, but the training...

Because based on linear model, order and delay the known statistical rule, noise and other known some strict mathematical constraints (referred to as the "ideal") and design of adaptive control system under the complex outside disturbance of unmodeled dynamic characteristics and is often a lack of robustness,...

Iron ore is the main raw material of the production in iron and steel enterprises in China. It is a non-renewable resource and with limited reserves. In this paper, in combination with the practical situation of the mine, an integer linear programming model of a strip mining block scheduling problem...

In this article, a type of adjustable blade angle control system was designed. The main role of the system was to achieve the function which made the blade angle follow with the change of the signal input. The article indicated the working principle of the adjustable blade angle control system combined...

As underwater environments are complex and time-varying, and the target is randomness and diversity. Underwater dam crack detection based on autonomous underwater vehicle (AUV) equipped with sonar is a challenging task. In this paper, a novel crack block tree (BT) algorithm utilized in sonar images is...

In this paper,according to China in 1973-2013 in eight forest inventory published forest cover of statistical data.Using gray system theory GM (1,1) prediction model for China's forest coverage rate forecast. Then, the use of residues correction method for the prediction model is optimized to ensure...

General marine environmental early warning data have not formed a unified standard, due to the different angles and dimensions in expression of marine environment. General formats of these data are text type, binary type, and mixed type. These data types cannot be read and processed by the GIS platform,...

The Clue of this paper is the data of marine environmental early warning service platform, and our research basis includes data classification, database index table, structure design and data consistence. The normalized data which is realized by ETL is ported in automatic drawing template, and use the...

The paper builds a model of marine fishing vessel early-warning based on principle of Negative selection algorithm of artificial immune system and Fishing Boat Accident Case Library. Firstly, the index weight of model was calculated by using BP neural network algorithm. Then, the model of fishing vessel...

Because of the low estimation accuracy of normal extended Kalman Filter in strong nonlinear system, an improved extended Kalman Filter (MI-EKF) is presented to solve the problem, and the filtering accuracy is greatly improved. In this paper, multi-innovation theory is applied to EKF, and the multi-innovation...

In this paper, traditional PID neural network (PIDNN) control theory was introduced and the characteristics and disadvantages of the algorithm was been analysis. An improvement PIDNN method based on multi-innovation theory was proposed. Then the steward tracking control system was simulated, some planning...

In the detection process of large random network intrusion signal, the signal detection method is key to guarantee the network security, the traditional detection method is simple, time-consuming, and the error is big, the detection precision is low. In view of this situation, a ORB wave intrusion signal...

A power quality disturbance integrated device is proposed which can simulate the voltage and current disturbance of the power system the output of the device include voltage sag, voltage fluctuation and flicker, voltage harmonic, current harmonic, three-phase voltage and current unbalance and so on....

Vehicle logo detection (VLD) is one of the crucial parts of intelligent transportation system (ITS).VLD methods are mostly based on learning progress or the relative position of vehicle logo and license plate. However, the learning progress is time-consuming, and the relative position above limits the...

The SQL injection attack is one of the topmost threats for web applications. Most previously proposed methods for detecting SQL injection attacks suffer from false positives and false negatives. This paper describes a defense model against SQL injection based on parameterized queries. Results show that...

is introduced the basic principle of weak periodic signal detection based on chaotic vibration subsystem.The shortcomings of the chaotic Duffing oscillator are presented by analyzingthe traditional detection results and detection principle based on Duffing oscillator, To make up the shortage of Duffing...

Monitoring of methane gas concentration in the mine is directly related to the safety of coal mine production and lives of the vast majority of miners. Based on the requirement of methane gas monitoring in the mine, an intelligent methane gas alarm based on ADuC812 microcontroller of Analog Device is...

We have recently proposed a problem about blind recognition of binary primitive BCH Codes. A model was established based on the polynomial roots statistic of finite fields. The roots probabilities of BCH codes were analyzed and the recognition method for binary BCH codes based on polynomial roots statistic...

In a parallelly operated system composed of multi distributed generations (DGs), traditional droop control is usually utilized for load distribution. This article introduces the basic principle which is based on the characteristics of the parallel inverters power droop, and analyzes the circulation phenomenon...

In a neutral nongrounding power system, the excitation impedance of an electromagnetic potential transformer (PT) and a ground capacitance power transmission line of an electric power system can form a resonant circuit that causes ferroresonance and endangers the security and stability of the power system....