Development momentum in recent years, the Internet of things technology, has become the important strategic development direction of information emerging industry in China. All walks of life increasingly widespread use of Internet of things technology, the Internet of things development prospect is bright....

Servo motor is one of the high value-added mechanical and electrical products, The servomotor disassembled from the waste equipment can be reused after the performance index is verified. But there is always a doubt about its reliability in the process of reuse. Based on the Bayes reliability theory,...

How to estimate the aviation equipment software size accurately is the precondition of carry out the estimating software R&D cost. This paper analysis the common case point method to estimate the software size. And then the paper point out three shortcomings of the method. That is the method can’t use...

The trusted certification scheme is an effective means to solve the network security problems. However, the existing scheme does not consider the trusted problems of the network and nodes of the sensing layer. Based on this, this paper proposes a trusted certification mechanism of Sensing Layer of the...

For IoT WSN security, this paper proposes a flexible, reliable, safe and universal trust computation mechanism of WSN of IoT. According to the characteristics of IoT WSN and comprehensively considering the basic properties of trust calculation, design principle of trust calculation, this section proposes...

Vortex visualization in flow field plays an important role in scientific research and engineering practice. In recent years, many research achievements have been fulfilled, but there are still several crucial problems to solve. This paper summarized the methods of vortex extraction and visualization...

Based on the multi-body dynamics model of tracked vehicle which has been tested and verified, the mathematical relationship between road roughness and speed is obtained by using the method of experiment design, approximation model and goal seeking, and the calculation method of off-road speed under the...

BIM technology is a kind of simulation imaging technology, which has the characteristics of strong visibility, good coordination, and powerful graphics. Especially in the construction industry, this technology can make the construction of the project more efficient and has rapid results. When BIM technology...

The traditional permanent magnet synchronous motor (PMSM) control system uses a mechanical sensor to detect the speed of the motor and the position of the rotor，the sensor is susceptible to the environment and reduces the reliability of the system.This paper uses a model reference adaptive system (MRAS)...

This paper constructs a short-term traffic flow forecasting model based on SVR. First, the modified KNN algorithm is applied to achieve phase space reconstruction and get the input data of SVR. Then, the short-term traffic flow forecasting model is established. Finally, this model was tested and evaluation...

For the cascade five-degree-of-freedom inchworm-imitating bipedal climbing robot body mechanism, multiple kinematic inverse solutions maybe generated due to redundancy in the D-H kinematics modeling process. Therefore, an optimal kinematic inverse solution selection method based on energy consumption...

The library is of great significance to the development of education in our country. Its management cannot be ignored. In the management of the library, the library computer database management is currently the most common and practical method. The author conducts research and analysis on the application...

In acoustic signal recognition problem, different analysis methods can extract different characteristics for the same goal. Good feature fusion methods can take advantage of different traits of each feature, complement each other ,remove redundancy, get more robust new features, and improve algorithm...

In order to obtain the stability and stress data of the surrounding rock mass in the deep region of the mine, a reasonable support scheme and support parameters are adopted to reduce the degree of roadway deformation and damage in the deep region and reduce the cost of roadway maintenance. There are...

The intelligent dressing equipment, the important development direction of future mobile computing form smart helmet is one of the important equipment of intelligent wear equipment form, it is a multidisciplinary integrated embodiment of cutting-edge technology.This article mainly introduces the design...

In this paper, the research status of air drying articles design in college Apartments is analyzed, and functional impairment and design flaw in use are discussed; through the analysis of drying habit and drying function needs of college students, the college apartment air drying article is re-considered...

Copper-modified 13X Zeolite was prepared by impregnation of metal nitrate solution with ion exchange and combined with calcination, and its application in desulfurization of fuel oil was investigated. Different anions have a great influence on the performance of modified adsorbents. Chloride ions are...

Taking the Jinan National Games Stadium as an example, according to the characteristics of the hoop-shaped spherical reticulated shell, the APDL language (Ansys Parametric Design Language) was used to program the parametric macro design of the single-layer reticulated shell, and the ANSYS software was...

Based on the application of Electronic Stability Control in commercial vehicles, this paper proposes a control strategy on account of fuzzy PID control algorithm, and designs upper and lower double-layer controllers. The upper controller takes the error and change error of vehicle yaw rate as the input...

In view of the fact that the research on energy efficiency in data centers has not fully considered the heterogeneity of workload tasks, a data center resource allocation scheme based on task classification is proposed. Through cluster analysis, tasks are classified into subsets of similar resources...

Tor hidden service allows the hidden service provider to provide TCP service without revealing its location, protecting the anonymity of both client and server at the same time. The length of the hidden service circuit is one time longer than normal Tor circuit. Although tor hidden service ensures the...

In the virtual training simulation software, users through graphical interfaces to fullfill in-formation exchange. By adopting the method of black box testing, treating the virtual training simula-tion software as a black box and input data to drive the software running, could test the interaction of...

Tor is one of the most widely used anonymous communication systems and has been studied by many researchers in recently years. Aiming at the disadvantages of the entry node and exit node of Tor anonymous communication circuit, this paper proposed a pseudo sender and pseudo receiver forwarding strategy...

Use salt rock underground caverns to store gas is an important storage mode in China, effective risk management is the key to the success of this method. Aimed to risk management, the foundation work is risk assessment. Fuzzy math is an effective method for solve uncertainty problem just like risk assessment....

Use salt rock underground caverns to store gas is an important storage mode in China, effective risk management is the key to the success of this method. Aimed to risk management, a risk management system was designed and developed, at first, overall framework of the system was designed, and then, each...

Aiming at the personnel optimization problem exist in equipment maintenance support unit, the personnel optimization problem of support unit is studied in this paper. Firstly, the relation between the maintenance time and personnel quantity is analyzed, the multi-objective model of maintenance time and...

In order to analyze microscopic operating law of intersection mixed traffic flow, a coupled cellular model of the vehicle VDR model and the one-way pedestrian Blue model was presented. Based on the definition of pedestrian ??'vehicle interference area, vehicle ??'pedestrian interference area and the...

With the developing of information technology, a large proportion of universities have accumulated lots of data, and individual data centers have been built. However, the data standards are inconsistent and formed lots of information islands objectively. So, the problem of data integration and data sharing...

At present,the enterprise network management system presents the network connections between nodes in the form of network topology,so that the network topology can be visualized.However,the enterprise network itself is complex.With the increase of enterprise business,the number of network nodes increases,resulting...

Based on the theory of optimization, this paper researches the route planning of multi unmanned aerial vehicle(UAV) cooperative task and the task planning problem of multi UAV scheduling. In this paper, we set up a feature point location model based on the traditional base station location model, which...

Similarity calculation is an important part of new event detection and effective computation of text similarity can remove redundant information and improve the efficiency of users' query. The paper mainly studies the calculation of the similarity between the Mongolian news materials. Because of the...

With the increase of traffic flow, in order to improve capacity, the shape of the toll plaza, the size of the design has become particularly important, the toll plaza that can improve the capacity of toll booths, ease the congestion situation and reduce the traffic accident is more and more favored by...

With the advent of the era of big data, the computing efficiency of computers has become higher and higher, and the artificial intelligence technology has been booming. These technologies have continuously developed to provide technical support for the text-to-scene conversion and brought new challenges...

Trucks are one of the most important tools for port transportation. However, at present, many ports companies in China have a lower level of intelligence, even some port companies still use the on-site guidance methods of weighman to weigh. This kind of manual intervention has low efficiency, high error...

The emergence of a new generation of information infrastructure, information technology and software technology platforms has provided a revolutionary driving force for the transformation of modern enterprise organizations, business process changes and service model innovation. Based on the theory of...

With the rapid development of network technology, self-service travel has already became more and more. Booking hotels with online reviews has become the choice of people. The paper takes the hotel's online review as the research object. From the research status of online reviews, according to the problem...

Vision saliency detection has been applied in image preprocessing steps. The purpose of this paper is to introduce the research direction of image saliency detection and introduce the performance evaluation criteria and datasets of the model. Then investigated a variety of methods, introduced various...

The railway locomotive signal is a signal installed in the locomotive driver's room to automatically reflect the operating conditions of the front of the train and instruct the driver's operation. It is very important to ensure the safety of the train. The traditional locomotive signal monitoring system...

A kind of inspection robot which can be applied to smart substation is introduced. Starting from the mechanical structure of mobile robot, the kinematics analysis model is established. Aiming at the characteristics of smart substation, a magnetic navigation system is designed, and the optimal path planning...

The main challenge in following robot is solving the real-time user localization problem. In this paper we introduce our solution for it together with our whole robot system called “FOLO”. Using extra-tool (such as Bluetooth) may cause inconvenience in interaction; 3D detector plus tracker ID approaches...

An anti-collision structure for bridge piers made by waste containers is proposed in this article, which including waste containers and filling. The top of container is cut and removed, a number of containers arranged with different styles on the main route of rolling stones and in front of the bridge...

Because of the sparsity of the ratings in the recommendation system, the calculation of the neighbors will be affected. The common method is to predict the missing ratings and calculate the neighbors with the prediction ratings. However, due to the deviation between prediction ratings and true ratings,...

To solve the problems of partial implicit feature information loss and long-time model training caused by matrix factorization on recommended algorithm of latent factor model (LFM), a recommended algorithm of user clustering fused with latent factor model is put forward. Firstly, the users’ preference...

Facing the condition that the inefficient training of traditional classifiers in the classification process of mammography, a classification method is proposed combining image processing and supervised learning. Firstly, the improved adaptive median filter enhances the image contrast. Then, according...

This design uses a PLC-based control scheme and uses industrial Ethernet, modbus fieldbus, and distributed control hybrid networking techniques to complete the desalination master control system design.

The paper focuses on establishing an effective evaluation system for smart urban growth plans. The system is subdivided into three subsystems which are Economically prosperous, socially Equitable, and Environmentally Sustainable. The paper sets up eleven indicators to reflect the subsystems. We make...

Under the influence of current education mode for maritime majors of china, it is a prevalent problem for vocational college that the deficiency of teaching-training vessel. In order that the problems of teaching and learning caused by the lack of teaching-training vessel was solved, the method of building...

It is a challenging task to deploy computationally and memory intensive State-of-the-art deep neural networks (DNNs) on embedded systems with limited hardware resources and power budgets. Recently developed techniques like Deep Compression make it possible to fit large DNNs, such as AlexNet and VGGNet,...

The simplified non-linear unit model not only can provide the inherent rules by control system design, but also can be use as a simulation process to evaluate the performance of the control algorithms. Using the nonlinear mapping characteristics of Online Support Vector Machine (Online SVM), the dynamic...

Understanding the structure properties of Graphene/PANI are important in developing polyaniline-based materials for different fields. In this study, the electronic property of Graphene/PANI are investigated by density functional theory. Analyses of the band structure and density of states indicated that...

The hydraulic overload protection system is widely utilized with the advantages of high precision control, suitable for multi-point press and automatic reset. The stiffness of the hydraulic pad is a key factor affecting the corresponding performance. In contrast, the stiffness value of the hydraulic...

For components that work at high temperatures, the final failure of the components is caused by the complex conditions. Most of the existing life prediction models are based on the failure of the material to withstand creep damage, fatigue damage, and the interaction between the two. In fact, many engineering...

Growth behavior of intermetallic compounds (IMCs) layer between Sn-3.0Ag-0.5Cu solder and Cu substrate were studied during aging at 150 ?"? for 1 day, 3 days, 6 days, 8 days and 10 days, respectively. Results shows that the IMCs layer is scallop shape at aging stage, and the aspect ratio of scallop shape...

A dissipative equalization circuit system is designed in order to ensure battery performance and prolong battery life.The equalization circuit system has wide voltage and high efficiency performance. It achieved intelligent equalizing charging by comparing battery terminal voltage and the setting threshold...

Based on the embedded computing platform, we propose a visual inertial fusion SLAM system. The software algorithm combines the matching of monocular visual feature recognition and IMU measurement pre-integration algorithms. And the back-end uses tightly-integrated nonlinear optimization algorithms to...

This paper proposes an improved localization algorithm based on signal strength (RSSI) adaptive value and two norm. In the localization process of the algorithm, the RSSI values as a direction vector, meet is qualitative, additivity is homogeneous and times, the RSSI values as a function with the concept...

Absorptive chaff is a light and high-efficiency kind of passive jamming material, which can decline echo amplitude enemy detection that equipment receives largely scattered in the air, thus reducing the probability of being found and tracked by radar equipment. In this paper, the jamming performance...

The driver's fatigue driving accounts for lots of traffic accidents. Through the study of the driver's behavior characteristics,we collect the steering wheel angle, angular velocity in real time, grip force and pluse through indoor simulation experiments.After calculation, we can get these parameters...

This paper investigates the detection performance of densely unmanned aerial vehicle (UAV) group on the air defense radar. The keystone is that multiple UAVs frequently fly in adjacent range resolution cell and usually locate in the same beam cell that inevitably has influence on the angle resolution...

A efficient data sharing system can not only accelerate the process of software development, the software itself will also be able to compensate for possible vulnerabilities which can greatly improve the quality of software. This paper analyses the storage characteristics and encoding principle of ISFF...

A novel flow control valve for point-of-care testing (POCT) chip, a micro rectangular groove array structure with capillary force as driving force, was proposed in this paper for the purposes of flowing controllable, spontaneous filling, low cost, and biological compatibility. The chip comprises two...

In this paper, a moving object extraction algorithm based on hybrid background subtraction and pixel mean is proposed to solve the problem that the existing object extraction algorithm can not adapt to the moving environment. The algorithm operation process includes target location identification, domain...

Cloud computing is a distributed computing model that enables developers to automatically deploy applications during task allocation and storage allocation. Cloud computing is the sharing of a virtual computer resource pool and the storage, storage and computing power of the device. In cloud computing...

In order to improve the accuracy and the convergence speed of the sphericity error, an improved teaching and learning algorithm is proposed to evaluate the sphericity error. Based on the basic teaching-learning-based optimization, the initial solution quality is improved by logistic chaotic initialization;...

This paper reports a type of abrasive polish method. Controlling the environmental aqueous rust inhibitor content can change its viscoelasticity to adhere diamond particles on polymer materials. Using the sandblasting mechanism, the elastic abrasive with fine diamond particles adhered to them collides...

The flight dynamics modeling for helicopter is playing an important role in helicopter design and flight performance analysis. This paper presents aerodynamic models for helicopter components, and the process of constructing aerodynamic model for main rotor is described in detail. When establishing the...

Aiming at the low success rate of gun firing with gas gun in the airport, the launch characteristics of gas-gas ejector were studied based on Fluent software to improve the ejection performance. Through the multivariate statistical analysis model, the single-value influence curve of each structural parameter...

To solve the problem of artificial scrubbing the glass curtain wall, such as large investment, high risk, high difficulty, based on the structure of telescopic fence, this paper has designed a new glass curtain wall cleaning robot, with a simple structure, convenient operation, safe, reliable and high...

The simulation of thin-walled aluminum alloy laser welding was carried out in this paper. It is analyzed for the temperature field of thin-walled aluminum alloy laser welding in various laser power and scan speed. The simulation results show that with the increase of laser power, the area of heat affected...

There are some difficulties in wisdom campus, such as geospatial big data sharing, function expansion, data management, analysis and mining geospatial big data for a characteristic, especially the problem of data security can't guarantee cause prominent attention increasingly. In this article we put...

This project uses MCU STC15W408AS (stable, energy saving, high speed), temperature sensor DS18B20 (cheap, high efficiency, stable), MQ2 resistance type semiconductor smog sensor (high stability, fast response and economy) and NRF24L01 wireless transmitting and receiving module (energy saving, small volume,...

Both audio steganography and network steganography are belong to modern steganography. Audio steganography has a large capacity. Network steganography is difficult to detect or track. In this paper, a multi-layer steganographic method based on the collaboration of them (MLS-ATDSS&NS) is proposed. MLS-ATDSS&NS...

This paper is involed in a test of performance comparison of multifunctional high-speed highway condition monitors. Data of rut, IRI and crackings has been collected and analysis of variation coefficient and correlation has also been analyzed. A significant difference of all samples is revealed in the...

Anchoring cables are widely used in the construction of foundation pit as a temporary support structure. After the construction is completed, the anchor cables left in the ground will not only cause environmental pollution but also cause a great waste of resources. The emergence of recyclable cable technology,...

Aiming at the low accuracy of traditional forecasting methods such as linear regression method, this paper presents a prediction method for predicting the relationship between bridge steel box girder and its displacement with wavelet neural network. Compared with traditional forecasting methods, this...

In this paper, after thermal power plant 300MW boiler was studied, matlab was used to write calculation program about heat transfer process between the main steam and boiler flue gas and a mount of water was calculated to ensure the main steam temperature keeping in target temperature. Then heat transfer...

The prediction for the frame of a video is difficult but in urgent need in auto-driving. Conventional methods can only predict some abstract trends of the region of interest. The boom of deep learning makes the prediction for frames possible. In this paper, we propose a novel recurrent convolutional...

Ultrasonography is an important examination for the diagnosis of chronic liver disease. The doctor gives the liver indicators and suggests the patient’s condition according to the description of ultrasound report. With the rapid increase in the amount of data of ultrasound report, the workload of professional...

Aiming at various configuration scheme and inertial measurement units of Strapdown Inertial Navigation System, selected tetrahedron skew configuration and coaxial orthogonal configuration by nine low cost IMU to build system. Calculation and simulation the performance index, reliability and fault diagnosis...

Plasma plumes exist widely in the electric propulsion systems. Neutral particles, ions, and metal particles are included in the flow field. Complex collisions occur between the particles. Particles will collide with the wall surface when they move towards the wall, then some particles will reflect back,...

The PPP model, a new financing model emerged after the 1990s, refers to jointly provide public products or services to the public sector through the establishment of partnerships between the public sector and the private sector. However, the PPP model is only one of the choices for supply of infrastructure...

The PPP is just the mode of public-private partnership, referring to the long-term partnership established between the government and the social capital to provide the public products or services, with typical form of organizing a special project company by the government and the social capital based...

The teaching resource management platform based on MVC mode was designed by PHP and MySQL to combine Internet technology with traditional teaching. The platform includes three modules: online learning, resource management and user management. It realizes user online video learning and information exchange,...

This paper is mainly aimed at making an assessment of the flying collision risks between the military and civilian flights. The collision risk model of military training airspace and civil flight route was constructed based on the study and research of the collision risk of civil flight Event model....

Three-dimensional tactical training Airspace planning is a complex combinatorial optimization problem. It is very important to construct the corresponding model and design the efficient and fast algorithm to improve the efficiency of airspace utilization and training. Aiming at the characteristics of...

To facilitate bridge managers to monitor real time bridge safety level and then conduct in-time handling and reporting, this study utilized real time bridge deflection data from MCU and informational circumstance of a combination of mobile terminals and computers to establish a database of basic bridge...

Discrete System Modeling for Large Ship Subsection Welding Workshop Based on Plant Simulation, Plant Simulation software was used to simulate the discrete system. This paper introduces in detail the process flow of the production line in a shipyard for substation welding and intelligent transformation...

Considering that it is difficult to obtain accurate results for 2D cutting simulation of SiCp/Al composites, a 3D cutting simulation model for SiCp/Al composites was established by using finite element analysis software ABAQUS. In this paper, material properties are assigned to Al-based and SIC particles...

Recently, the attentional seq2seq model had made a remarkable progress on the abstractive summarization. But most of these models do not considers the relation between original sentences, which is the important feature in extractive method. In this work, we proposed a Hierarchical Neural model to address...

Genetic Algorithm (GA) is a very effective optimization solution method. It can provide faster and better results than some traditional optimization methods for the control structures and control functions in the control field. It can be said that the intelligent connection of GA and CAD software packages...

With the development of solar power generation, the research of high-power photo voltaic grid-connected systems has become a hot topic. The establishment of mathematical models for photo voltaic arrays and photo voltaic grid-connected converters has important research on photo voltaic grid-connected...

This paper mainly introduces the application of nonlinear finite element method in dynamic simulation based on point model. In this paper, based on the traditional nonlinear finite method, the method of optimizing the tetrahedral mesh is proposed, and the mathematical model and calculation method that...

Fire is one of the major disasters that often happen in the cities. It causes serious economic losses and casualties. Smoke is the main cause of death in fire and it is difficult to be simulated in the traditional way of fire drill. A multi-role collaborative fire drill simulation system was developed...

At present, the global industrial structure begins to shift from industrial economy to service-oriented economy, and gradually develop high-end service industry into an important pillar industry of a country. Due to the relationship between high-end service industry and high-end manufacturing industry,...

Due to the limitation of laboratory equipment in SCM experiment teaching, this paper designs a C/S based remote virtual experiment system for SCM education. The user enters the experimental information on the client experiment page. The virtual experiment server receives the experimental information...

Due to the limitations of the field of training corpus, the Chinese word segmentation based on statistic results in poor self-adaptability in the field. In view of the difficulty of obtaining large-scale annotation corpus in the target area, this paper proposes an area adaptation method that combines...

In the traditional OCR text recognition system, recognition rate is low with many errors.Also, it can not effectively identify the different text fonts. It’s a long-standing problem. Modern text recognition system should be for different fonts within accuracy to identify the text and font information....

With the development of the mobile Internet, short subjective information such as Weibo comments and product reviews has been rapidly increasing, and massive textual information makes manual management more and more difficult. This paper takes the short text as the research object to analyze the emotion....

Predicting the status of flight vehicle in advance can have huge advantages in maintenance and early warning areas. Accurate forecast helps reduce maintenance costs and improve safety during the aircraft's life cycle. Combining the ability of convolutional neural network to extract features of different...

We conducted an immersion test for fresh and precast concrete in Na2SO4 solution of 5 g/L over 3 years. The water-to-binder ratio is 0.50 and the proportions of fly ash are 0-35%. The descent rate of compressive strength curve is regarded as the criterion, and the conclusions are as follows: (1) For...