Search all articles

+ Advanced search
Search articles within:
15974 articles
Proceedings Article

Information granularity of soft sets

Yaya Liu, Keyun Qin
Soft set theory, proposed by Molodtsov, has been regarded as an effective mathematical tool for dealing with uncertainties. This paper is devoted to the study of uncertainty measures of soft sets in the framework of granular computing. The similarity relation induced by a soft set is proposed and the...

Detecting Objects from No-Object Regions: A Context-Based Data Augmentation for Object Detection

Jun Zhang, Feiteng Han, Yutong Chun, Kangwei Liu, Wang Chen
Pages: 1871 - 1879
Data augmentation is an important technique to improve the performance of deep learning models in many vision tasks such as object detection. Recently, some works proposed the copy-paste method, which augments training dataset by copying foreground objects and pasting them on background images. By designing...
Proceedings Article

The Study of Subway Tunnel Seismic Nonlinear Dynamic Response

Mingming Liu, Xiaofang Li, Shidan He
Objective: This paper studies the subway tunnel seismic nonlinear dynamic response, so that can get some helpful conclusions, which is helpful for seismic designing of metro tunnel. Methods:A series of probems on dynamic FEM are discussed and suggestions about setting of soil dynamic constitutive model...
Proceedings Article

Influencing Factors of the Development of Adolescent Tennis Club

Yilong Chen, Yingjun Nie, Qian Liu
In order to build tennis cultures and improve tennis competition level in Guangzhou city, and also to enhance teenagers' physical health, this paper studies the influencing factors of the development of adolescent tennis club in Guangzhou city by using the methods of literature consultation, questionnaire,...

Research of Social Engineering Attacks in Telecommunications Fraud

Guangxuan Chen, Guomin Zhou, Zhoujie Mao, Qiang Liu, Ziwan Zheng, Guangxiao Chen, Panke Qin
Telecommunications fraud is spreading rapidly in some areas of China, which caused huge losses to the people's property. This paper analyzed the weakness and psychological factors of the victims, and revealed the nature of telecom fraud, i.e., the criminal’s skilled use of social engineering for fraud,...
Proceedings Article

An Independent Component Recovery Approach for Intrusion Tolerance

Jianhua Huang, Yang Liu, Yi Jin, Shalin Huang
An independent component recovery approach for intrusion tolerance is proposed in this paper. Virtual Machines (VMs) are used to provide each online replica with an independent backup replica. The recovery of each component depends on the actual service state. A strict execution order is not needed to...
Proceedings Article

Prediction of weld shape for fiber laser welding based on hybrid heat source model

Y. Liu, P. Jiang, Y.W. Ai, C. Yue
The shape of welded joints directly affects the quality and stability of joints, so the weld shape prediction has great significance and engineering value to for process parameters selection. A mathematical model of fiber laser welding temperature field simulation is proposed for weld shape prediction...

The Balance Between China's Patent Invalidation System and Patent Infringement Litigation

Ya Liu
In China, the patent invalidation system and patent infringement litigation system are developed by different subjects and different programs. In practice, the system of patent invalidation is interwoven with the system of patent infringement litigation, and the decision of patent validity is the key...
Proceedings Article

Mathematic Description Method of Hybrid Electric Vehicles’ Driving Cycle

Ximing WANG, Hongwen HE, Xinlei LIU, Jiankun PENG, Henglu TANG
The performance of fuel economy and emissions reduction of hybrid electric vehicles (HEVs) strongly is affected by the target driving cycle. So, the characteristics of the driving cycle play an important role in the hybrid powertrain matching and the control strategy designing. However, the mathematic...

Influential Factors of Water Scarcity in Xinjiang

Lang Liu
Firstly, we define Z as the index measuring the ability of one region to meet its water demand. Next, We define to represent the degree of how these factors influence Index Z by using weight and correlation coefficient. Afterwards we accordingly work out the most influential factors causing water scarcity...
Proceedings Article

Research on the power dispatching and trading mechanism oriented to low-carbon economy

Rui Ge, Miao Li, Qiangming Zhou, Xu Cheng, Dunnan Liu, Bin Cao, Lizheng Shao
In the era of low-carbon economy, the traditional electric power industry will be confronted with tremendous changes on its external environment and internal developing model. The electric power industry should also pay closer attention to low-carbon, energy–saving as well as the emission of the CO2,...

Current Situation and Problems of Poverty Alleviation in Ethnic Villages Under the Strategy of Rural Revitalization — A Case Study

Tian Liu, Tianchao Yang
Based on the rural revitalization strategy and the national poverty alleviation strategy during the 13th Five-Year Plan period, the paper points out that poverty alleviation in minority villages is the key measure to solve the poverty problem in ethnic minority areas. According to the research results,...

Exploring the Value Development and Industrialization of Red Cultural Resources in the Old Revolutionary Areas of Northeast Sichuan

Take Xuanhan County, Sichuan Province as an Example

HuiYin Guan, QiaoChun Liu
The development and utilization of red cultural resources in old revolutionary areas is of great value to local development. Xuanhan County is an old revolutionary base with a rich red history, forming the characteristics of red resources that are numerous and widely distributed. In response to the problems...
Proceedings Article

The Changes in the Semanteme of the Word "Gui"and it's Educational Significance

Lihuang Liu
In contrast to the usage in ancient Chinese, great changes have taken place in the present usage of the Chinese character " ", its part of speech and the scope of its meaning differing a lot. The analysis of its social attribute finds that these changes reflects the modern society's pursuit of equality...
Proceedings Article

The Impact of Electric Vehicles on the Distribution Grid

Shao yun Ge, Long Wang, Hong Liu, Liang Feng
Distribution grid will be greatly influenced when large scale electric vehicles are simultaneously charged or discharged. Firstly, the assumptions related to the charging and discharging power of EVs are discussed, and the probability of daily driving distance is examined. Secondly, the probability models...

A Literature Review on the Application of Anchoring Effects in Online Auctions

Yixiao Hao, Luxin Liu, Bowen Sheng, Jianping Yao
Online auctions have seen a tremendous transformation as online functions developed over the past decades. This paper aims to explore the background, state quo, and current problems of online auctions through a deep analysis of literature reviews and case studies. Using the examples of Mobile Internet...

Establishment of Innovative System of Ideological and Political Education in colleges

Qi Liu, Xiaoyan Pan
In 2016, General Secretary Xi Jinping emphasized at the National Conference on Ideological and Political Work in Colleges that ideological and political work should run through the whole process of education and teaching. It create a new situation for the development of higher education in our country....
Proceedings Article

Microstructural Characterization of Extrusion Welds in 6xxx Aluminum alloys

X. Ren, J. L. Zhang, J. P. Li, J. Liu, H. H. Zhang, X. R. Wang
In this study, the microstructure of extrusion welds (including charge welds and seam welds) in a curtain wall hollow profile made of 6063 alloy is investigated using both Optical and Scanning Electron Microscopy (OM & SEM, respectively). The grain size and the morphology, size and distribution of particles...
Proceedings Article

Control Algorithm and Simulation Research of Electric Boiler System

Ying Liu, Guiling Fan
This paper studies and designs a temperature control system based on single-chip microcomputer as the core of the intelligent electric heating boiler, and the fuzzy control algorithm is adopted in the control strategy. PID control, SMITH algorithm, DAHLIN control and fuzzy control method are commonly...
Proceedings Article

Plasma Wake and Interaction force for Diatomic Molecular ion Transporting through plasmas

Guiqiu Wang, Siyuan Liu, Yaochuan Wang
The objective of the present work is to study the interactive potential and forces for a diatomic molecular ion in plasma within the dielectric response theory.The results show that the interactive force shows the asymmetric property due to the wake effects. In addition, the force can be divided into...

Regulation of Income Distribution in Developed Countries and Its Enlightenment to China

Na Liu, Xiaojun Zhang, Lingyan Xiang
After 30 years of reform and opening up, China has achieved rapid economic growth. However, the national income gap is showing a growing trend. There are large income inequalities among regions, urban and rural areas and industries. In fact, the income gap is a worldwide problem, which exists to varying...
Proceedings Article

A New Way Study of Embedded PLC Control System Fault Diagnosis

ChangLiang Liu
With the rapid development of PLC and its widely used in the field of industrial, life, etc., is bound to bring high performance requirements of PLC. Reliability for measure of PLC performance indicators, and PLC application in most occasions must meet the requirements. How to improve the reliability...
Proceedings Article

Design of an Interactive Educational Information System Based on the SECI Model

Ying Liu, Shahriman Zainal Abidin, Shaolong Yang, Jie Wang
The construction of an educational informatization application system has become an important content of current educational informatization construction. Based on SECI knowledge management model, this paper discusses the training of teachers and the construction of a learning mechanism, and the construction...
Proceedings Article

Identity Routing Symmetry Metrics for Routing Behavior

Fang Dong, Junbiao Liu, Shenyi Dai
Routing affects several protocols and impacts traffic analysis techniques. In this paper, an identity routing symmetry (IRS) metric is proposed to express network routing and its formulation is derived, which the forward and reverse flows coming from one node to another are exactly the same. IRS in three...
Proceedings Article

Study of Adaptive Sliding Mode Control Method Based on Disturbance Observer for Quadrotor Unmanned Aerial Vehicle

He-wei Zhao, Yong Liang, Xiu-xia Yang, Xiao Liu
Quadrotor Unmanned Aerial Vehicle is a kind of UAV, which is disturbed easily and has nonlinear and strong coupling characteristics. In the paper, the model of Quadrotor Unmanned Aerial Vehicle is presented, then the adaptive sliding mode control laws is designed based on the model. And the disturbance...
Proceedings Article

The Multi-scale Model Study on Steel Latticed Arch

Mengsha Liu, Jingyuan Li, Jinsan Ju
In this study, Ansys was used to build a detailed finite element model of the steel latticed arch. The multi-scale model was adopted to analyze the behavior of the steel latticed arch and the finite element analysis results were analyzed comparing with the element beam model. The conclusion can be obtained...
Proceedings Article

The Design and Implementation of Fly Back Type High Frequency Switching Power Supply Based on OB2201

Xia Liu
Switching power supply is on the basis of the development of modern electronic science and technology, using the power switch tube, by controlling the switching time (duty cycle) to make the output voltage stability of the high frequency power supply, it includes two parts of the main circuit and PWM...
Proceedings Article

Series form solution for a graded composite strip with elastic variation in span direction

Qing Yang, Weiping Liu, Muhuo Yu, Dongyan Xiu, Ping Cheng, Lijie Jia, Peng Xu, Ran Wei, Jingjing Sun
A graded composite strip with elastic variation in span direction is investigated in the paper. So far, studies about materials variation in span direction are rare. Here, the strip is treated as a plane problem, and the modulus varies exponentially with span direction, and Poisson ratio is constant....
Proceedings Article

Research and Application of Carrier Aggregation Technology in Smart Grid

Mingxia Li, Yongjun Feng, Xiaohua Liu, Mingfeng Yuan, Yeshen He
Due to limitation of the optical fiber communication network coverage, the wireless technology is usually adapted to meet the requirement of applications in the smart grid transmission and distribution. In this paper, we study the electrical communication with integrated access technology to establish...

Analysis on Old-Age Security Problem of Landless Peasants and Its Countermeasures on the Process of Urbanization

Meige Liu
The process of rapid social and economic development, Chinese urbanization and industrialization is also developing rapidly which requires a lot of land as a support, whereby farmers will lose their land and become society obtained a special group, they are called landless farmers. Land has always been...
Proceedings Article

Study on the Vibration of Slab Mill Based on Muti-body Dynamics

Zhaowei Dong, Xiaohang Wan, Shengyong Liu
The vibration analysis model of slab mill is established in this paper according with the multi-body dynamics theory. The relationship between the vibration displacement and time of the roller in different conditions is obtained through simulation analysis. Under different damping conditions, the vibration...

The Design and Analysis of Micro Learning System Based on WeChat Public Platform

Jiemei Gao, Jun Han, Jing Liu, Shuwei Dong, Nannan Wang
There, presently, are few micro learning resources based on WeChat public platform. The purpose of this paper is to create a micro learning system based on WeChat public platform which includes advantages of the combination of WeChat public platform and micro learning. Its aim is to provide a diversified,...
Proceedings Article

The study of 3-strand PP/PE composite monofilament Rope

Jiangao Shi, Wenwen Yu, Yongli Liu, Lei Wang, Xiaoxue Chen, Luming Wang, Wenzhu Zhong
Performance-price ratio, safety and tensile mechanical properties of the new 3-strand fishing PP/PE composite monofilament rope (“PP/PE composite monofilament rope”) were studied in this paper. PP/PE composite monofilament rope was made with the fishing polypropylene/Polyethylene (PP/PE) composite monofilament...
Proceedings Article

Research of Teaching Methods for Professional Training Based on Project-driven Teaching Practices

Da Xiao, Yong Liu, Lujia Cao, Shengli Liu, Dongyue Yan
For business-oriented type of short-term training courses of this new task of teaching and teaching needs, to carry out an in-depth analysis and research, detailed the demand characteristics of these new teaching curriculum, on this basis, based on the design of a project-driven teaching practices, the...

Reconstruction of Infrastructure After Disasters in the Disaster Areas Suffered from Heavy Earthquakes Taking Dujiangyan as an Example

Zhongguo Zhao, Xinjuan He, Ruiqi Deng, Yuming Liu, Jiahao Zhu
As one of the greatest natural disasters to humanity, the earthquake is devastating to a region, and post-disaster reconstruction is urgent and arduous. In the current research field, there is a lack of detailed and in-depth research on the post-disaster reconstruction work of the heavily affected areas....

Analysis on the Influence of Double-reduction Policy on Three-child Policy

Qing Liu
Since 2021, from the seventh national census to the implementation of the ‘Three-child’ fertility policy, China’s population problem has become the focus topic of most concern in all sectors of society. From Double-reduction policy to all localities no longer approving new discipline after-school training...

Sensitivity Analysis and Investment Decision Making Under Uncertainty Based on NPV Method

Qingyang Liu
Sensitivity analysis is often used in investment decision-making to evaluate the risk under uncertainty. However, sensitivity analysis on the NPV method is seldom studied in the existing literature. This paper studied how sensitivity analysis could complement the NPV rules in investment decisions when...
Proceedings Article

Design of Simple CPU Based on Hardware Description Language

Jianming Liu, Yunjie Zhang, Lili Xu, Pengtao Liu
Based on FPGA, the hardware description language Verilog and the top-to-down design method of modularization are adopted to achieve the design of a simple CPU logic controller, in which the software design and simulation are conducted for each module of the CPU, and then each module is synthesized. The...
Proceedings Article

Design of Non-contact Coordinate Measurement System

Jingliang Liu, Chunchao Pang, Jianguo Fang
In this paper, several technical problems were conquered, such as synchronous collecting measurement data, calibrating the beam’s space position of optical probe, and unified coordinate system,ect. Finally, the non-contact coordinate measuring system was built by using Pearl1298 CMM and optical probe...
Proceedings Article

Study on Air Distribution of Displacement Ventilation in Dome Cinema in Summer

Xiaoyang Lu, Xiuzhi Liu, Shaobo Lu, Ya Su, Zhongjia Zhao, Long Li
This article used CFD method to simulate features of air organization in dome cinema in summer, and analyzed the temperature field, velocity field, and comfort under different designs of ventilation. The result showed that using ground air supply in large space building could be easy to satisfy the thermal...
Proceedings Article

Logo Localization and Recognition Based on Spatial Pyramid Matching with Color Proportion

Feng Wenya, Chen Zhiqian, Hou Yonggan, Liu Long, Guo Yilin
In this paper, we propose a novel logo localization and recognition model in which we use the spatial pyramid matching with color proportion to train a score function and the Efficient Subwindow Search (ESS) to localize region and recognize specific logo. Our model has two advantages compared with other...
Proceedings Article

Object Search via Random Context

Wei Liu, Yunxing Ruan, Xia Cai
Accurately object searching plays an important role in computer vision. Retrieving and locating target objects in images are object searching’s two sub-tasks. Aiming to promote the precision and recall of object searching, selecting appropriate image representation methods is the core issues. The representation...

The Valuation Strategies of Artificial Intelligence Startups: The Investment Analysis of MEGVII

Zhuotong Chi, Zhiyue Liu, Chenyu Xia
The research shows the investment analysis of MEGVII from investors’ perspectives by using the POCD framework and SWOT analysis. From the development of artificial intelligence and the market in China, Megvii has sufficient potential for growth in the artificial intelligence market. AI is undoubtedly...
Proceedings Article

Modified Genetic Algorithm Based Method on Low-Power Mapping in Network-on-chip

Qi-hua Dai, Qin-rang Liu, Jian-liang Shen, Miao Sun
Focusing on the power decreasing of large-scale applications in network-on-chip, this paper proposed a modified genetic algorithm based method on low-power mapping. With communication weights of task nodes and structural features of mapping platform, this method acquired better initial mapping solution...

An Innovative Strategy for Scientific Popularization of Tuberculosis Prevention and Treatment Among Adolescents: A Volunteer Advocacy Program

Qianling Hou, Hong Liu
Scientific popularization of tuberculosis (TB) prevention and treatment among adolescents is of utmost significance in fighting the battle against TB in China. To obtain initial progress in adolescent TB control, it is pressing to implement corresponding scientific popularization work for the specific...
Proceedings Article

The Establishment and Verification of 90° Elbow Pipe with Circular Cross Section Internal Pressure Distribution Model

Xiaoyang Lu, Bin Li, Lili Huang, Wei Zheng, Jinming Liu, Lulu Wang
The flowing condition and the pressure on inner surface of ethylene in the 90°elbow pipe were simulated by means of FLUENT software, on the condition of 4 kinds of fluid density , fluid inlet velocity v, fluid outlet pressure P0, degree curvature k=R/d respectively. The database of elbow pipe pressure...
Proceedings Article

Dynamic gesture recognition and human-computer interaction

Jiali Zhang, Guixi Liu
In this paper, the recognition algorithm of dynamic gestures, which based on depth information, is proposed. A new human-computer interaction controlled by dynamic gestures is also achieved. The proposed algorithm extracts Histogram of Oriented Gradients (HOG) and weighted Hu invariant moments from RGB...
Proceedings Article

Design of Medical Sealing Machine Based on ARM Processor

Jian Li, Xiaojuan Li, Jiani Liu
For the hospital disinfection center, operating room and dentistry and other medical equipment after sterilization sealed package to provide a perfect solution.ARM as the core processor, to control closed-loop temperature sensing heating system, through the capacitive touch LCD screen using graphical...
Proceedings Article

Research on GIS Theory and Practice Teaching Method of Surveying and Mapping Major in University Based on We-Media

Maohua Liu, Yan Wang, Fang Liu, Di Sha, Xiubo Sun
Study on teaching reform methods of GIS in Colleges and universities of Surveying and mapping based on We-Media. From two aspects of theory and practice of GIS course, by means of Micro-blog, WeChat and other media to construct We-Media teaching platform, on the We-Media platform publish courseware,...

Research on the Improvement of the Socialist Education Base's Educational function with Chinese Characteristics

Jiangping Liu
Education is the rejuvenation of the Chinese nation, and the cornerstone of social progress. It is the fundamental way of improving national quality and promoting people's all-round development, entrusted with the hundreds of millions of families hope for a better life, and carrying the hopes of the...