From the viewpoint of system engineering ,the navigation safety of oilfield water is analyzed and the quantitative evaluation indexes are identified. The comprehensive evaluation model is built to evaluate the navigation safety of oilfield water according to the butterfly catastrophe theory. Then the...

Plenty of volatile organic compounds, inert gases, oxygen, carbon dioxide and other gases which are called as gas mixtures exist and mix in the upper space of liquid cargo tank owing to sloshing of oil tanker and heating of the crude oil in the liquid cargo tank. There will be potential risks of fires...

Research on road impedance function is limited to directly using travel time or travel cost as road impedance value, and the influence of distance, travel cost and level of service on route choice behaviors are not considered comprehensively. Therefore, this paper proposes a construction method for road...

Ground settlement laws and its control measures attract comprehensive attention in urban rail transit construction, particularly in soft soil area with shield tunneling method. Phase 1 of No.1 rail transit project in Ningbo is constructed by earth pressure balance (EPB) tunneling methods. In this paper,...

A rock material biaxial compression test simulation based on the contact constitutive model for brittle rocks is built in this paper by the aid of particle flow code in two dimensions, which is on the basis of parameter sensitivity analysis and analysis by inversion to get the microscopic model parameters....

The process of rock blasting involves large deformation of rock mass,material nonlinear,and so on, the research on the mechanism of it is still in the stage of exploration at present.This article attempts to analyze the propagating of the stress wave in the explosions from the microscopic view. We simulate...

This paper evaluated the impacts of various factors on the youngcyclist’s intention of aberrant crossing behaviors at intersections. Bicycles were classified into conventional bikes and electric bikes (hereinafter referred to as e-bikes). Data were collected from 374 participants in Nanjing, China.The...

The bulb bow of bulk carrier and the double hull oil tanker are simulated. Based on the numerical software ANSYS/LS-DYNA, quantitative analysis was performed for these types of ship side collision. By the results of simulation, the critical velocities lead crack both on outer-plate and inner-plate of...

Taking the Lixian-Guangyuan segment of Lanzhou-Chengdu-Chongqing product oil pipeline as an example, the satellite images in the study area were produced based on multi-source remote sensing information. The authors then established the remote sensing interpretation signs for debris flows according to...

The majority of soil and water conservation facilities are located in remote areas, posing measurement difficulties involving precision instruments. Therefore, visual inspection with the advantage of rapidness is the primary assessment method used. However, standards regarding identification of the degree...

Accurately straightness measuring has a direct relation to the promotion of the machine precision. In the process of straightness measurement, since the measuring interval has a great impact on the accuracy and efficiency of large-size straightness measurement, and there is no detailed measurement interval...

With the rise of the refrigerator ship as a new technology, it is imperative for safety monitoring using the scientific method. In this paper seaworthiness evaluation is employed for safety research. Firstly, according to refrigerator ship characteristics, seaworthiness evaluation content, procedure...

This paper chooses the wide and narrow alternated channel in upstream of Baoxing River as the research object, establishes a three-dimensional flow calculation model and studies the effects of gap backwater on flow characteristics of the water in upstream channel under different conditions. The results...

Climate is an important factor that affects architectural design. In different regional conditions, it should have different structure and space distribution, that is, the regional technology of adaptation to climate. According to the climate characteristics of the middle and lower reaches of the Yangtze...

Traffic distribution is extremely uneven in Changqing campus of Wuhan Polytechnic University. To find out how exactly unbalanced it is and how to remedy this situation, investigation and questionnaire were carried out. Here only focus on the traffic investigation which was adopted eight observation points,...

In this paper, by using of large-scale structural analysis software ANSYS for a three-bay eccentrically braced steel frame with semi-rigid connections done nonlinear analysis. The results showed that: eccentrically braced semi-rigid steel frame have good energy dissipation capacity and some prospects.

In this paper, the influence of crack of the big physical volume concrete, types of cracks, cracks reasons were comprehensive analysis, expounds the key elements of large volume concrete configuration, construction and maintenance and other aspects of the, proposed to reduce and control of crack of the...

Waterproof construction is a comprehensive, practical, strong engineering, it relates to a waterproof material, waterproof engineering design, construction technology, building materials management and other parties, use function of building engineering plays a vital role. No seepage leakage, to ensure...

Many sliding strata exist in the Three Gorge Reservoir and the weathering products will landslide easily. Aiming at the accumulation formation of Triassic Padang Group in Beipei Landslide treatment project, this paper applied parameters reduction method to analysis the deformation mechanism and stability...

A SST turbulence model is applied to solve the Reynolds Averaged Navier-Stokes Equations in numerically simulating the 3D steady wind flow field around the square with high-rise buildings in atmospheric boundary layer. The aerodynamic prediction was supported by velocity data collected in field measurement...

Present Chinese big cities are facing one common problem that road resources have being occupied by the construction of traffic projects. In order to solve the problems of traffic organization during construction properly, this paper put forward the research content and technical principle of municipal...

With more and more schools expanding and redesigning their landscape spaces, therefore their outdoor furniture’s shape, dimension, quality and usage are also changing and redesigning. One of the significant changes in the design process is to take users’ needs/concerns into account. This change is influenced...

Comprehensive transportation is the key point of all countries. Passenger and cargo transport pay attention on seamless connection and transfer. The paper discussed the state-of-the-art at home and abroad, and the state-of-the-art of the railway-highway intermodality , train-and-bus intermodality , air-railway...

Remote sensing images have been a main information source of the pre-disaster monitoring, disaster prediction and rapid assessments of disasters. However, the existing affected objects classification system, which is designed for the post-disaster survey, hardly meets the requirements of applications...

The crack resistance at low temperature of semi-flexible pavement was favorable, which prepared by waterborne epoxy-emulsified asphalt-cement as grouting material. While the E/A is 0.6, the maximum bending strain has reached 2662??, which is close to SMA-13. In the three-phase grouting system, asphalt...

Shallow seismic exploration is the unique approach to obtain first-hand data of engineering geology for municipal construction. In this work, a mechanical shocking source has been designed for facilitating exploration of constructive stratum datum of urban construction. Aiming at the existing issues...

The Paleocene reservoir of Dagang Oilfield, which is one of the most important and complex fault-controlled lacustrine reservoirs in China, is located in the north depression of Bohai Basin. With forty years of exploration and development, most large oilfields in East China have generally entered the...

Altogether 37 footbridges were randomly chosen in Beijing metropolitan and ambient vibration surveys were carried out. The vertical fundamental frequencies are obtained by peak-picking technique based on frequency domain decomposition, the damping ratios are calculated by half-power bandwidth method....

Heat gain due to solar radiation through translucent elements of building envelope is an important component of building heat balance during heating period. The paper shows the necessity for taking into account the influence of designed buildings on the insolation conditions of the existing residential...

According to the kinematics and dynamics characteristic of UAV Two-axis Pan-title, the dynamic equations of two-axis platform was erected up, and moreover by predigesting and linearizing the model in the balance point, the math model was gained which could be the same with Fault-tolerant controller design....

In this paper, we introduced and analyzed automobile engine’s common linear exhaust gas recirculation system’s features ,with a method of comparison, based on my years of vocational colleges' Automotive Electronic Control Engine Construction and Maintenance teaching practices. Among these includes the...

The rapid development of national economy, not only requires the occupation education to meet the personnel quantity requirements, but also to ensure the quality of talents. In order to make the occupation education and healthy development, the state issued a series of preferential policies, to encourage...

The dynamic shear rigidity is an important function for marine soil. Due to the random fluctuation, the proper expression on marine soil dynamic shear rigidity is stochastic spectral theory. The typical marine sediments were studied here. Their dynamic characteristics were included systematically in...

Intelligent headlamps AFS (Adaptive front-lighting system) can significantly improve safety of nighttime driving behivior, bending mode algorithm of conventional AFS are basically based on vehicle speed and steering wheel angle signal/ road wheel steer angle signals to control the swiveling angle of...

A lot of tank-type parts installed in the rail vehicle, which as a function of the bearing parts and mechanical connections between vehicles of media, which is to ensure the functional parts and vehicles are properly connected or protected features no outside combat, erosion, corrosion and other factors...

In order to improve the growing serious traffic congestion on the junction of freeway and expressway (junction of road network in short), starting from the on-ramp metering, considering the main line and its on-ramp control requirements, the multi-agent collaborative was introduced. And the relativity...

The development of a new generation of high performance gas turbine engines requires gas turbines to be operated at very high inlet temperatures, which are much higher than the allowable metal temperatures. Consequently, this necessitates the need for advanced cooling techniques. Among the numerous cooling...

Aimed at cultivating interdisciplinary talents of economics and management with high quality, this paper proposes a multidimensional and integrated experimental teaching system, and further innovates diversified experimental teaching methods and cross-border experimental teaching organization. The proposed...

Typical teaching spaces of the colleges in Chengdu are selected as the object of the research for its typical severe weather, which is hot in summer and cold in winter area climate. Several instruments have been utilized to test the index of thermal comfort, indoor temperature, wall temperature and air...

In this paper, the traveling recorder for mine locomotive is designed, which can store a section of video for further analysis and transfer the real-time image by the wireless communication to the monitoring platform. By the recorder, the personnel in the monitor room could find some hazard situation...

The development and inheritance of Central Plains martial arts, as an intangible cultural heritage, is in a difficult period. But the advantages of information networking technology, such as fast transmission, wide audience, strong interactivity, and rich information have provided a new technical means...

This paper proposes a comprehensive method, named realization degree mid-term evaluation,to assess indicators during “Twelfth Five-year” mid-term. Meanwhile it establishes mid-term evaluation for the “Twelfth Five-year” planning of Shanxi indicator system constituted by three hierarchies,such as target,...

Making non-stationary random excitation in automobile vibration system change into stationary one is that the sample function of random excitation studied is made into a product of two functions, one of which is a definite function, called observation function, the other is stationary random process,...

In recent years, extreme weather phenomenon has happened frequently, for example, rainstorm, hard snow, fog etc. At the same time, extreme weather phenomenon causes easily stagnant water, surface snow, ice on road, highway landslide and other disasters, which causes many traffic hazard points, brings...

This study takes older blocks around the eight immortals palace in Dongguan of xi 'an as an example to explore the comparison and validation of integration of community public space in the old city with the classification prototype, and then puts forward strategies for the space management. Based on...

With the enrichment of Marine information on the Internet, the users find that it is hard to find the knowledge they need when they face with a deluge of Marine information resources, they wish to acquire marine information data rapidly which is integrated and desirable. Recently, researchers have been...

There are labor intensive, harsh environment and other issues in the handling process of the cheese in the dyeing workshop. To solve this problem we have designed and developed a Cheese Rectangular Coordinate Robot. PC is the host computer, and the software in PC is compiled in VC environment. It responsibles...

4-UPU belongs to the category of less degree of freedom parallel mechanism, this paper analyzes kinematic pair of the parallel mechanism and the structure design of key parts, and selecting the best design scheme.According to the bottom and the principle finish three-dimensional entity assembly, in the...

Based on a combination of BP neural network and SVM, aluminum plate surface defects classification was discussed. In order to detect the defects, the target image is binaried by adaptive threshold method. After binarizing the target image, extract the characteristic value of six kinds of aluminum plate...

This paper introduces the composition, working principle, hardware and software design of the control device of the economical mine hoist rope winch.The device is controlled by the main control box.For the core, real-time detection of speed signal and winch running information, and can be real-time display...

Along with the development of information communication, the amount of data to be obtained also increases. However, the requirement for high-speed data transmission is far more than the development of data transmission and put forward to a higher demand on high-speed data transmission. So, researches...

Automated and accurate classification of MR brain images is of importance for the analysis. Recently researchers have proposed many different and innovative methods to improve upon this technology. This review focused on discussing the strength and limitations of earlier proposed classification techniques....

This paper proposes an adaptive network-based fuzzy inference system (ANFIS) based forecasting method for short-term solar power forecasting. An accurate forecasting method for power generation of the photovoltaic (PV) system is urgent needed under the relevant issues associated with the high penetration...

At present, most of the researches on net present value are focused on single objective cases. This paper discusses net present value problem with upper level multi-objective optimization. In order to solve the problem efficiently, we present a genetic algorithm using interpolation. According to the...

Routing protocol is one of the core technologies of wireless sensor networks. RPL (Routing Protocol for Low-Power and Lossy Networks) routing protocol, designed by ROLL Working Group, is mainly implemented on the TinyOS and Contiki operating system. In order to extend the application fields of RPL, we...

IPv6 (Internet Protocol Version 6) is the next generation of IP protocol used to replace the current version of IP protocol designed by IETF(Internet Engineering Task Force),and applying IPv6 technology to the wireless sensor networks (WSN) will be a hot spot of research. Combining with the characteristics...

To deal with the deficiency of the existing image threshold segmentation algorithm, combining the advantages of Artificial Fish-swarm Algorithm (AFSA), based on the improvement of the AFSA, the thesis proposes a new improved image threshold segmentation algorithm which is the combination of the AFSA...

A fast initial alignment method used Adaptive sample size unscented particle filter (AUPF) for SINS is proposed in this paper. As the SINS initial alignment with large misalignment angle is a typical nonlinear and non-Gaussian filtering problem, the unscented particle filter (UPF) is widely used in existing...

Social Network Service (SNS) includes QQ, Facebook, Twitter, Blog, etc. Studies show that in the complex network, 20% of nodes with degree accounted for 80% of total degree. So the importance of each node is very different in the network. Many researchers dedicated to studying of complex network centrality,...

Purchase behavior trend of online shopping customers is predicted in this paper via a Negative Space-Trust Model. Based on cognitive psychology, this model we build mainly focuses on the influences of three types of negative space proportion in e-commerce webpage design (negative space proportion of...

The electromagnetic component expressions of transient electromagnetic field in formation media for ground magnetic dipole are derived based on electromagnetic field theory. Fast Hankel transform and the Gaver-Stehfest inverse Laplace transform method is used for forward numerical calculation of transient...

The explosive development of the IT field, the number of structured and unstructured data is increasing in geometrical. According to this tendency, the importance of Big Data and analysis techniques has received attention. Also, using these data a number of cyber-crime has occurred. So, the security...

In this paper, we conduct theoretical analysis and numerical simulation on the sensor network spectrum detection technology based on Internet of Things. In the field of Internet of things, information service system as a means of information, intellectualized, is an important research direction. In structure,...

For example of the two-degree-of-freedom micro-actuator, the topology optimization, extraction and experiment are investigated. Firstly, the topology optimization model considering the suppression strategy of input and output coupling terms and optimization algorithm is developed. Secondly, according...

In this paper, a mathematical model is established to apply for orientation distribution of short fibers suspensions in shear-equibiaxial extensional flow. Furthermore, the result of differential equation on plant fibers orientation can be acquired in complex flow.

the number of various things began to connect to the Internet. Much more data than ever before has been recorded in the data system. Accordingly, the system that saves, analyze a data Measured from things is required. People try to predict the future through nature. IoT cloud platform that write an overflow...

This paper first introduces the concept and allocation status of virtual reality technology, by analyzing the current computer-aided design problems in the toy, this paper also describes the virtual reality techniques advantages in toy design, mainly referring to improve the innovation of design, shorten...

In this paper, the prototype of the Tibetan language search system is built and the solutions to key issues for this model are proposed.The characteristics of Tibetan language of web pages are analyzed and extracted. The web page encoding are converted to standard Unicode, which permits for better recognition...

Aiming at discussing the important issue of large time-delay temperature control of large-scale chicken farms, a large time-delay model of large-scale chicken house temperature control is firstly established. Through the large time-delay model of the large-scale chicken farm temperature control, the...

In the smart substation security area, the IEC 62351 standard defines clearly security measures, provides security guarantees for substation communication system and network security. This paper analysises the part of IEC 62351 standard of GOOSE/SMV protocol security, finds out the shortcomings of the...

This paper has done some research on the flatness measuring method of satellite antennas under thermal loads. A real time thermal control technique was proposed. Using this technique, the temperature of the satellite antenna was heated from the room temperature to 70°C, and the temperature distribution...

With the scaling of NMOS devices, gate tunneling current increases significantly under Drain Induced Barrier Lowering (DIBL), and static characteristics of devices and circuit are severely affected by the presence of gate tunneling currents. In this paper, a novel theory on direct tunneling current predicting...

Freeway traffic flow and safety are the main subjects of the current highway traffic operation in an intelligent transportation system. The traffic flow model and traffic safety evaluation model were studied in this paper to analysis the traffic operation under a new traffic rule of variable traffic...

With the development of electric power, communication, network and sensor technology, the applications of wireless sensor network in smart grid will be more extensive. However, the privacy issues of wireless sensor network will also be more obvious with variety of applications, if we do not take appropriate...

In this paper, the construction method of common measurement matrices is studied, adaptability of common measurement matrices for mechanical vibration signal is analyzed. Typical measurement matrices are selected from commonly used measurement matrices, Gaussian random measurement matrix and Bernoulli...

Rotor unmanned aerial vehicles (UAV) usually adopt MEMS gyros, accelerometers and magnetometers to determine its navigation attitude. Because a MEMS gyro has a drawback of angle drift, its attitude data is often corrected by the data solved with accelerometers and magnetometers. This paper presents a...

Distributed PV generation system is an important way currently for distributed power construction. Affected by device characteristics and installation features, it suffers a higher probability of failure, so its impact on the public grid is more than ordinary electrical equipment. In order to prevent...

With the development of mobile Internet and semiconductor technology, people have the increasingly strong demand for the home life of the network, intelligence and energy-saving. The household appliances, lighting, security alarm integrated into the control platform through a wireless network, realizing...

The dynamic characteristics evaluation of thermocouples presents a challenging problem for temperature measurement. The authors have recently proposed a novel difference-based cascade thermocouple measurement system that consists of three thermocouples with different time constants. The combination of...

PV as an important form of new energy, which has good prospects has been developed rapidly in recent years. However, distributed PV grid causes such as power quality, stability and reliability, also distribution Maintenance island effect will work to bring a lot of PV systems security risks. This mainly...

As one of the important sectors of the national economy, the power industry management department should constantly expand the scale of power system. Therefore, it faces increasingly heavy grid development planning task. Based on the research of the vacant area inference, existing classification and...

Print mottle is one of the most detrimental factors to general print quality, and to get high quality print, the most important thing is to resolve print mottle problem. The evaluation method for print mottle is proposed by means of discrete wavelet analysis, in which the index of print mottle is built...

This paper proposes multi-filtering method to prevent DDoS attack. Several filtering methods are applied in two firewall architecture for effective DDoS prevention. In the first firewall, R-PA filtering algorithm and strict hop counter filtering method are applied by analyzing packet paths. In the second...

It is an important engineering problem that affected by the environmental factors, the performance of aircraft structure of carbon fiber reinforced polymer (CFRP) under the Marine environment has depredated; and it is an important means of analysis of CFRP material degradation by accelerating aging mechanics...

A large number of malicious apps focus on stealing personal and financial information. It is very important to detect such apps as early as possible in order to prevent subsequent crimes. DroidBox incorporating TaintDroid detects leakage of private information, IMEI (International Mobile Station Equipment...

The relationship between the robot and visual measurement system (VMS) fixed on it is a critical part of the robot visual measurement system (RVMS). This paper presents a method to calibrate the robot and the VMS fixed on it without the traditional hand-eye calibration procedure. In the paper, the last...

Aiming at the problems of traditional linear variable differential transformer (LVDT) with poor linearity and small stroke length ratio, a new kind of structure with magnetic ring was presented. The finite element simulation models of the before and after improved LVDT were established. The structural...

The common urinal flusher, whether the button switch type or infrared detection induction, due to the water hole in the system by flushing it into the water column outflow, which cannot be evenly distributed in the urinal, resulting in poor cleaning effect. Furthermore, when a large amount of water washed...

The method of completing the squares is a method that is used to transform a math formula directionally in order to obtain a perfect square formula by making rational use of “splitting items” and “adding items”. Least square estimation consists of the method of projection, the method of derivative and...

This paper introduces a home networking solution of wireless intelligent control lighting system with Zig-Bee to overcome the shortage of the traditional intelligent light control system. Software and hardware design of networking are also made.Then based on the main control chip CC2430, the coordinator,...

Document image retrieval technology is extensively studied, but there is no report about Uyghur document image retrieval. Hu invariant moment features based document image retrieval scheme is proposed for Uyghur document images in this paper. Firstly, seven types of invariant moment features are extracted...

MPSK is a modulation method which uses various phase states of the carrier to describe digital information. And it is widely used in the field of digital communications. Now, the applicable scope of MPSK signal modulation is too narrow, and it is necessary to know the type of signal source to modulate...

Along with social progress and scientific development, there is increasing demand for smart devices. In this paper, the design of ultrasonic obstacle avoidance car can be widely used in intelligent household, intelligent robots and other sports-related equipment. This paper will use Verilog HDL language...

FIR filter is widely used in the fields of signal processing with high fidelity. In the design of FIR filter the traditional algorithm such as serial DA algorithm, parallel DA algorithm and combined series and parallel DA algorithm are all not so suitable, which has lots of shortcomings. In this design,...

In recent years, new communication technologies has made rapid development. Orthogo-nal Frequency Division Multiplexing (OFDM) is a core technology in the fourth-generation wireless communication field(4G). The basic principle of OFDM is to split a high-rate data stream into a number of lower. In OFDM...

Traffic lights are common in daily life’s digital systems, the design of traffic lights need to use many basic functional units of digital systems. Traditional digital circuit design is based on the design of integrated circuit in small or medium scale, which has the limitations of needing too many circuits,...

The scan digital display has the function of receiving and processing digital signals. As an advanced display type, the digital display presents a trend of accelerating development. Because of shortage of the long development cycle and high price of the traditional display design, this paper designs...

In order to build intelligent robots to accomplish soccer game tasks, this paper introduces evolutionary computing in agent architecture for perception, planning, and action: (1) an architecture based on PSO is proposed, which made up of 4 levels: atomic action, combo action, behavior and policy. (2)...

On the purpose of measuring Newton rings deformation stress and the intelligentialize of the newton rings apparatus, a Variable Gain Amplifier circuit which is based on a low power, general purpose instrumentation amplifiers INA128 offering excellent accuracy was designed to amplify the low frequency...

a novel content-based image retrieval framework was presented in this paper. This framework is used to encode primary visual feature and saliency information as natural image features by simulating visual attention mechanism and using the conditional probability. In this framework, the color volume is...