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141655 articles

Effect of high energy shot peening on electrochemical corrosion resistance of WE43 magnesium alloy

Wen Gao, Shouren Wang, Gaoqi Wang, Jixue Zhou
In order to study the effect of high energy shot peening on electrochemical corrosion resistance of WE43 magnesium alloy, the electrochemical corrosion behavior in 3.5% NaCl solution of WE43 magnesium alloy with different processing duration was investigated. Its cross-sectional microstructure, surface...

The Study of Aerobic Membrane Bioreactor Used to Process Low Carbon and Nitrogen Ratio Sewage

F.P. Hu, W.J. Hu, X.J. Peng, B.X. Huang, H.L. Dai
In sewage treatment, the sewage whose carbon and nitrogen(C/N) ratios is less than 8 is defined as low C/N ratio sewage. This study contrasts the treatment effects under different C/N ratios in aerobic membrane bio-reactor. The experiment is performed in the following conditions: Temperature is from...
Proceedings Article

(PAPER WITHDRAWN) An Improvement for BigMC

Qing-Quan Shi
Bigraph which proposed by Robin Milner is a powerful formalized modeling language. We can get the bigraphical reactive systems (BRS) by using bigraph to represent each state in a system. Model checking is the technology which can verify whether a given model stratifies the specified requirement and it's...
Proceedings Article

Personalized Recommendation of Classification based on Social Relationship and Time Information

Mengzi Tang, Li Li
Improving recommender performance is beneficial. However, sparsity and scalability of data is a problem faced by recent recommender systems. Customer interests and available products are changing constantly. Social interactions among users are highly influential on the effectiveness of the recommendation....
Proceedings Article

Detecting Social Topic by Hashtag-Weighted Topic Model over Time

Jie Qiu, Li Li
Nowadays, more and more social media platforms support hashtags to facilitate information classification. Like Twitter hashtags, a user-initiated hashtag can suggest emotion/mood, convey so much extra information in addition to the actual tweet. Hashtags have been widely used in topic analysis because...
Proceedings Article

A Modified Method for Acoustic Pulse Extraction under Noisy Environments

Menghua Cao, Zhiqiang Sun, Erling Gong, Hongwei Xie
This paper addresses a modified method of extracting acoustic pulse based on the multi-band spectral subtraction and the frequency band variance. In this method, the acoustic pulse is detected, the noise spectrum is estimated and subtracted from the acoustic pulse spectrum. By abandoning the late reverberation...
Proceedings Article

Predictive control of networked control systems based on event-triggered

Wangzhi Wen, Zhongmeng Xiao
A novel structure of networked control systems which incorporates output feedback predictive control and event-triggered communication scheme in a unified model based on the networked control system with packet loss is proposed in this paper. The load of communication channel is relieved by event-triggered...
Proceedings Article

Study on the queuing system for services being processed parallel by multi-servers

Guang Wang, Qiaozheng Ma, Xiangjun Li
In view of the fact that a server can provide parallel service for multiple customers in the practical application at the same time, the corresponding queuing models are constructed, and the system running indexes are inferred accordingly such as the steady-state probability, average queue length, average...
Proceedings Article

Single Image Deformable Surface 3D Recovery by Linear Programming

Wenjuan Ma
We present a method for 3D shape reconstruction of inextensible deformable surfaces from a single image. The key of our approach is to represent the surface as a 3D triangulated mesh and formulate the reconstruction problem as a sequence of Linear Programming (LP) problems. We use a closed-form method...
Proceedings Article

Fault diagnosis of rotor broken bars in induction motor system

Tianqi Lu, Tong Wu, Xue Xiao, Sichen Lu, Jiye Yang, Dongxue Li, Zhuoran Song
The comparison of the induction motor rotor common fault simulation, the fault characteristics are obtained this kind of failure of the motor through theoretical derivation and simulation model is established in the fault condition of the motor based on the multi loop theory, the running state of a motor...
Proceedings Article

The improved particle swarm breaker fault status parameter optimization of SVM classification

Yihang Sun
In order to improve the mechanical structure of the type of fault resolution precision high voltage circuit breaker spring mechanism, the paper analyzes the characteristics of the circuit breaker and the combination of mechanical vibration signal PSO algorithm (PSO) SVM parameter optimization method...
Proceedings Article

Implementation of the Teaching Experiment system based on Unity3d engine

Guang Hong, Fu-ping Deng, Dong-yu Zhang, Chao Fen
Aiming at the shortage of the actual experimental equipment, virtual reality technology was adopted for setting up an experiment system. The framework is the strange IoC and the engine is Unity3D for the system. A step operation of the experiment is divided into five parts, interaction behavior, interaction...
Proceedings Article

Research on quick dam parameter inversion tool based on ANSYS software using APDL and improved GA

Futing Sun, Xiuli Zhang
Dam parameter inversion tool based on ANSYS software and improved Genetic Algorithm is researched. Firstly, traditional GA is improved by introducing power function to rebuilt fitness function; Secondly, quick dam parameter inversion tool based on improved GA is programmed on ANSYS software; Finally,...
Proceedings Article

Fast MIMO-ISAR Back Projection Algorithm Based on FFT

Xiuyou Wang, Hao Wang, Dongqing Xu, Huaming Liu, Jianzhong Fan
In order to reduce the computational cost in the current MIMO-ISAR back projection imaging algorithm, a fast algorithm based on FFT is proposed for MIMO-ISAR back projection. First, we establish the reflected wave signal model for MIMO-ISAR imaging. The approximate representation of linear change of...
Proceedings Article

Design of Electric Power Data Management System Based on Hadoop

Yongheng Li, Yongzhi Wang, Liang Jin
With the development of smart grid, electric power system data surges in a short period of time, and the traditional data storage and processing platform can't meet the requirements. In this paper, big data-related technology will be applied to the electric power data management, using Hadoop as a basic...
Proceedings Article

A new site location approach based on Filtering and Clustering for car sharing system

Yang Yu, Juanjuan Zhang, Jinglin Li
Car sharing service provides people with a new environmentally friendly way to travel. In car sharing system, one of the major challenges is how to determine the location of the car sharing sites. However, the existing method does not take into account people's demand in reality to select the car sharing...
Proceedings Article

Algorithm of Keywords Extraction about Power Documents Based on Hadoop

Tong Wang, Yongzhi Wang, Liang Jin, Yongheng Li
As the power big data is developing with a wide range of varieties, it is used to manage and analyze data, especially the unstructured data such as power documents. In this paper, HBase database and HDFS are applied to make the document searching easier and faster. Keywords extraction based on Hadoop...
Proceedings Article

Research on motion sensing interaction technology based on HTC Vive

Fu-ping Deng, Guang Hong, Shuai Zhang, Bing Zhai
The motion sensing interactive devices can greatly enhance the sense of immersion. In this paper, the flow of the interaction with the HTC Vive is sums up five step. Analyzes the positioning principle of the HTC Lighthouse and introduce the function of the HTC thumbstick. Then defines the quaternion,...
Proceedings Article

Hand Gesture Recognition Using Deep Neural Network and Its Implementation in Augmented Reality

Huayong Yang, Xiaoli Lin
In this paper, we study the augmented reality and its application in intelligent human-computer interaction. The complex structure in the visual background is a major challenge for gesture segmentation. First, we use a robust skin color segmentation method to preprocess the input image. Second, visual...
Proceedings Article

Finding the shortest path under polygonal obstacle constraints

Xu Yan, Dawei Liu
This paper discusses the problem of road network navigation under polygonal obstacle constraints from an implementation perspective. It implements the problem provided by the 4th ACM SIGSPATIAL GIS Cup 2015 challenge. In the context, it briefly examines some fundamental graph search algorithms and then...
Proceedings Article

The Exploration and Practice of MVVM Pattern on Android Platform

Wei Sun, Haohui Chen, Wen Yu
How UI designers and business engineers collaborate to development apps on Android platform conveniently and effectively is a difficult problem to tackle when projects get more complicate and need more effort. This paper compared the commonality and variability of MVVM with the commonly used MVC and...
Proceedings Article

Choosing Peers, Improve the Quality of Peer Assessment

Jinshuang Li, Xiaohan Fu, Qiuwei Yang
Peer assessment has got a lot of attention because it serves as a useful tool for scaling the grading of open-ended works. But it does not always produce accurate results because of two important reasons: students' ability and students' attitude. Based on students' peer grades and the evaluation attitude...
Proceedings Article

GPU Accelerated Level Set Non-Homogenous Image Segmentation Solving by Lattice Boltzmann Method

Qinyong Zeng, Dengwei Wang, Kaiyu Qin
A novel hybrid fitting energy based active contours model in the level set framework is proposed. The method fuses the local image fitting term and the global image fitting term to drive the contour evolution. Our model can efficiently segment the images with intensity inhomogeneity no matter where the...
Proceedings Article

Dark Background Image-denosing Based on KPCA Method

Yiran Xiao, Xiaolin Tian
In this paper, a dark background image-denosing method based on KPCA is discussed. First of all, the analysis of KPCA features is used to extract features from the training samples, and then discards the features which had small variance to form the feature space. Second, for reducing the noise, the...
Proceedings Article

Data Fitting-based SNR estimation algorithm for the Adaptive Transmission

Zezhou Sun, Chenghua Wang, Xiaofei Zhang
Adaptive transmission system selects the suitable transmission rate on the basis of the current channel state. In this paper, we exploit the signal to noise ration (SNR) as a benchmark of standard to measure the channel state. We employ data fitting (DF) to estimate SNR, which is a key technology of...
Proceedings Article

Interception of the near space hypersonic weapons based on the partial integrated guidance and control method

Bin Fu, Hang Guo, Jie Yan
The interception of the hypersonic weapons in near space is the main problem considered in this paper. The designed interceptor is assumed to have much lower speed than its target and very limited maneuverability in the near space atmosphere. To deal with this problem, a two-loop Partial Integrated Guidance...
Proceedings Article

Alarm Correlation Research and Implementation Based on Similar Data Sources

Yi Tang, Dahai Jin
In the modern society, static defect detection technology become an effective way to build reliable software. But the phenomena of misinformation and failing to report in the result of static defect detection makes testers needed to confirm the false alarms one by one manually. It is necessary to improve...
Proceedings Article

Water Tunnel Experimental Research on Vortex of Delta Wing

Song Li, Wei He, Kai Luo, Limin Song, Yuankai Li, Jicheng Zhang
Flight or maneuvering at high angle of attack is one of the most important parts for the modern fighters. When the angle of attack is within the usual range, the aerodynamic characteristics have a linear relationship with the dynamic of aircraft. With the increase of angle of attack, the airflow separation...
Proceedings Article

Research on Structural Random Response Based on C Type Gram-Charlier

Xiaokai Wang, Tao Zhang
The main research content is a quantitative description of the structural uncertainty problem (Quantification Uncertainty) based on the finite element theory. For the first time, reduction integration method is used to decompose multi-dimensional random response function, the multi-dimensional function...
Proceedings Article

Research and Practice of Security Technology in Computer Network

Qinghong Qu
The arrival of the information age has gradually expanded the practical application of computer networks, provided more convenience for people's lives, and promoted the rapid development of Chinese information industry. In this situation, the process of using computer network has gradually produced network...
Proceedings Article

Construction Mechanics and Time-Varying Mechanics in Civil Engineering Analysis

Li Wang
With the development of city construction, civil engineering construction scale becomes bigger, safety problems is gradually serious. This paper introduces the main contents of construction mechanics and time-varying mechanics in civil engineering. We hope to analysis the safety problems in civil engineering...
Proceedings Article

Technical Framework Research on Critical Information Infrastructure Cybersecurity Classified Protection

Weihong Ren, Jing Yuan, Lei Jiang, Tai Zhao
The technical framework of critical information infrastructure cybersecurity classified protection in this paper is established from the three levels of decision-making, managers and executives which ensures the information security technical framework of an organization is consistent with its strategic...
Proceedings Article

Research on Comprehensive Evaluation of Freeway Traffic Safety in Heilongjiang Province

Jia Liu, Weiwei Yan
Through the statistic analysis of the accident data of Heilongjiang freeway from 2010 to 2014, it is concluded the regularities of distribution of the accidents on the Heilongjiang freeway, as well as the factors influencing the security of Heilongjiang freeway system. Then, the evaluation index of Heilongjiang...
Proceedings Article

Research on Communication Networks Effectiveness Evaluation Based on AHP and Fuzzy Clustering

Yan Ding
Communication networks effectiveness evaluation directly determined whether the communication networks system is successful. This paper investigated the communication networks effectiveness evaluation based on Analytic hierarchy process and fuzzy clustering method. Indicators of communication networks...
Proceedings Article

Exploration on the Management Method of Low Frequency Load Shedding in Regional Power Grid

Guowei Ren, Rui Ren
Based on low frequency load-shedding practice experiments of Xinyang power supply company, work principles as 'three reports, one examination and a table modification' is proposed to improve the management of power grid in substitute district. The methods introduced in the paper is proved to be effective...
Proceedings Article

Intensive Traffic Resource Scheduling based on Map/Reduce in Multi-domain Optical Networks

Li Du, Xue Sun
In the intelligent optical networks, there are two key problems in the long-distance and high-speed intensive service transmission. First one, the sharing scheduling problem of the optical networks resources, namely the privacy problem. Second problem, users of network services require high-quality,...
Proceedings Article

Development of Modern Technology in Electronic Engineering

Fang Liu
The rapid development of science and technology provides reliable protection for the expansion of electronic engineering applications, and gradually improves the production efficiency of related industries. With the influence of this situation, in order to meet the people's demand for electronic engineering,...
Proceedings Article

Study on the Characteristics of Low-speed Boundary Layer Flow Separation

Peng He, Lei Li, Zhongyin Chen, Man Li
The boundary layer theory is proposed by German scientist Prandtl. When the fluid motion in the large Reynolds number, a thin layer will be concentration to produce in the fluid surface. Because the thin area is very close to the object surface in which the viscous force plays an important role, which...
Proceedings Article

Calculation and Data Processing Method for Aircraft Maneuvering Performance

Limin Song, Xiujuan Liu, Wenbi Cao, Song Li, Lei Yuan
The quality of flight performance directly determines the execution of flight tasks. For the establishment of a simple and effective methods and calculation of maneuver performance, a lot of work were completed. By the principle, method and steps of calculation maneuvering the aircraft flight performance...
Proceedings Article

Synthsis and Photophysical Properties of a copper (I) complex emitting material containing 1-(9H-fluoren-2-yl)-1H-imidazo[4,5-f][1,10]phenanthroline ligand

Cheng Yi, Shaobo Liu, Feng Zhao
A new copper(I) complex, [Cu( Flu-imPhen)(POP)]PF6, where -Flu-imPhen = 1-(9H-fluoren-2-yl)-1H-imidazo[4,5-f][1,10]phenanthroline , POP=bis(2-diphenylphosphanyl)ether, was synthesized and characterized. The corresponding photophysical properties were investigated using UV-vis and emission spectrometry....
Proceedings Article

Design of adventure game based on Sanxingdui culture elements

Jianhao Yu, Yinfang Zhang
Traditionally, Chinese traditional culture elements always exert an effect on development of modern Chinese game thanks to its rich visual models and profound intrinsic implication. Sanxingdui culture, with its inheritance, individuality and mystique, has unique culture connotation. The paper used Sanxingdui...
Proceedings Article

Design and Implementation of an Android EPUB3.0 eBook Learning System

Mao Chen, Miao Dai, Hang Luo, Xiaozhen Zou, Sanya Liu
With the rapid development of mobile Internet technologies, mobile learning has become a new way of learning, which is playing an increasingly important role in classroom teaching and autonomous inquiry learning. EBook realizes the perfect combination of traditional learning resources and mobile learning,...
Proceedings Article

New Periodic Wave Solutions for MNW Hierarchy with the Aid of Computerized Symbolic Computation

Sheng Zhang, Luyao Zhang
Computer has received more and more applications in various fields. In this paper, many new periodic wave solutions expressed by Jacobi elliptic functions of the Mikhauilov-Novikov- Wang (MNW) hierarchy are obtained by using the extended F-expansion method. In the limit cases, the obtained Jacobi elliptic...
Proceedings Article

A New Variable-Coefficient AKNS Hierarchy and its Exact Solutions via Inverse Scattering transform

Sheng Zhang, Xudong Gao
In this paper, a new variable-coefficient AKNS (vcAKNS) hierarchy is derived from the associated with linear spectral problem and its time evolution equation. The derived vcAKNS hierarchy is a solvable mixed hierarchy which contains isospectral nonlinear partial differential equations (PDEs) and nonisospectral...
Proceedings Article

Effect of Maturation Time of Coagulum of Fresh Natural Rubber Latex on Oxidation Kinetics of Natural Rubber

Bei-long Zhang, Hong-hai Huang, Yong-zhou Wang, Li Ding, Ping-yue Wang
The oxidation kinetics of natural rubbers prepared by coagulum of fresh natural latex coagulated with formic acid or microorganisms were studied. The maturation time of coagulum is 6, 12, 18 and 24 hours respectively. The results show that the oxidation activation energies of natural rubbers prepared...
Proceedings Article

A method to improve the annotation mechanism based on Readium

Mao Chen, Hang Luo, Tengbaao He, Sanya Liu
With the rapid development of information technology, great changes have taken place in people's reading habits, and paper books are being replaced by eBooks. Digital annotation tool allows readers to highlight or insert notes into eBooks during the process of reading, which is an important way for readers...
Proceedings Article

Modified stochastic gradient estimation algorithms for Box-Jenkins model based on auxiliary model

Jianxia Feng
An auxiliary model based stochastic gradient estimation algorithm in proposed in this paper. The unknown variables in the information vector can be estimated by using the auxiliary model. Then the unknown parameters can be estimated by the stochastic gradient algorithm. Furthermore, in order to increase...
Proceedings Article

Research on Dynamic Gesture Recognition Algorithm Based on Multi-touch Human-computer Interaction Devices in Classroom Teaching

Zhao Zhang, Xiuling He, Zengzhao Chen, Ke Wu
In this paper, we propose a dynamic gesture recognition approach based on multi-touch devices. This method contains three stages: dynamic gesture stroke collection, gesture feature extraction, gesture analysis and recognition. In order to recognize nine kinds of gestures in classroom interaction process,...
Proceedings Article

Building Integrated Lightning Protection Technology and System Design

Xianjie Feng
This project is a residential area, the project is composed of two towers and commercial podium, is a collection of commercial, office in a body's comprehensive construction, where two towers total height 46.8m. The project according to a class of building lightning protection grounding design, roof...
Proceedings Article

A kind of Prefetching Data Way to Hadoop MapReduce Environments

Hui Xia, Peng Wu
In MapReduce environment, problem of data redundancy,a large number of tasks to be processing and mass data storage come up, in order to solve these problems, we put forward the way of data prefetching , preprocessing of hid the remote data access latency, by adjusting the allocation of resources to...