Computer Life (CPL) 

 ISSN: 1819-4818

Delivering Quality Science to the World

Archieves

Volume 3, Issue 3, 2015

 

Page No: 189-191

Research of Elevator Control Strategy

Feng Jiang

Changchun University of Science and Technology, Changchun, China

Abstract: In this paper, a simulation digital model of elevator system is established. By adopting reasonable estimate algorithm, the best response is selected from the application condition of various complexes. The optimal control is achieved under the condition of priority of application and fast response.

Keyword: Elevator Control, Control System, Optimal Control

 

Page No: 192-197

A Spiritual Motivation Research Based on Some Amendments to Expectancy Theory

Chaomin Gao1and Jing Ma2

1School of Business and Management, BaiSe University, Baise, China; Ph.D. candidate in Panyapiwat Institute of Management, Thailand

2School of International Education, Guangxi University of Finance and Economics, Nanning, China; Ph.D. candidate in Panyapiwat Institute of Management, Thailand

Abstract: Based on Demand Theory, this paper analyzes the Expectancy Theory from a psychological perspective. By referring to the Flow Experience related research results, this article points out the inadequacy of Expectancy Theory and provides some amendments to it. After analyzing the relationship among Intention, Cost and Behavior, the paper proposes to add Time as moderator which has moderating influence on the result, so that forming a Spiritual Motivation theory based on Some Amendments to Expectancy Theory. Moreover, this paper constructs a theoretical model which deepens the explanation degree of Expectancy Theory to concrete phenomena. According to the three controllable variables in the model, the paper provides corresponding suggestions in human resource management. In the end, it summarizes the limitations of the research and proposed directions for future research.

Keyword: Motivation, Intrinsic Motivation, Need Theory, Expectancy Theory

 

Page No: 198-206

A Causal Analysis of Anxiety in English Listening Test for College Undergraduate Students

Jia He

Changchun university of Science and Technology, Changchun, China

Abstract: By using “English Listening Test Anxiety Scale”and “English Listening Test”. This research investigated the anxiety in English listening test among 183 high school sophomores from one university in Changchun city, Jilin province. The result finds that high school sophomores’ English listening test anxiety has a significant difference among the students with different learning levels. Students of good learning suffer greater anxiety than those not of good learning. Anxiety varies significantly between boys and girls as girl students’ anxiety is significantly higher than boys’. nglish listening test anxiety also reveals its difference among students of different grades or ages. igh school freshman show higher anxiety than those of grade Two.

Keyword: Anxiety, English, Listening Test, High School Sophomores

 

Page No: 207-210

Research on MIMO Technique Applied in 4G

Ling Lin

Institute of Information Engineering, Tongren University, Tongren, China

Abstract: With the rapid development of science and technology, there is an increasing number of people demanding the service of mobile phones multimedia. The new generation mobile communication (beyond 3G/4G) will provide data transferring rate up to 100Mbit/s, and even higher. And it can support services from voice to multimedia services, including instant streaming media. Thus under the condition of the limited spectrum resource to achieve high speed and large capacity, the need for high spectrum efficiency technology has become a new challenge. This paper introduces the development of mobile communication, the application and principle of MIMO technology in 4G, and researches the problem of improving the spectrum utilization rate of space time block code for MIMO technology.

Keyword: MIMO Technology, 4G, Space Time Block Code, Spectrum Utilization Rate

 

Page No: 211-218

Research on Seven-Parameter Method using Bursa Formulas Applied in Xi'an 80 to WGS84 Coordinate System Conversion of West-East Gas Pipeline Project

Jiangyu Wang, Yi Liu and Zhenyu Wang

China Petroleum Pipeline Engineering Co., Ltd., Langfang, Hebei, China

Abstract: This paper embark on the importance of coordinate System to West-East Gas Pipeline Project design work , introduced the parameter characteristics of Xi'an 80 coordinate system and the WGS84 coordinate system. This paper elaborated the process of conversion Xi'an 80 coordinate system to become WGS84 coordinate system which using Bursa formula method to seven parameter method, and given the specific examples and error analysis, and proposed a method to reduce the error.

Keyword: Bursa Formula, Coordinate System, West-East Gas Pipeline Project

 

Page No: 219-224

Survey of the Life Values of Undergraduates in Different Educational Systems

Jiangfeng Li

Zhengzhou normal university, Henan, China

Abstract: This article compares and analyzes the life values of undergraduates in newly-promoted undergraduate universities with different educational systems in the aspects of the utilization of spare time, value of life, value on love and marriage, network view and attitudes towards money through questionnaire survey, aims to find out the reasons why there are similarities and differences in life values. Propose the idea that promoting the integrated development of undergraduates by meeting the subjective needs of them as an entry point, to enhance the effectiveness and scientificity of moral education. Focus on the effect of the construction of campus software and hardware on undergraduates’ values, and give play to teachers’ leading function, to finish the conversion task of systems and regulations as soon as possible, to lay a good foundation for newly-promoted undergraduate universities to finish the transactional period successfully.

Keyword: Newly-Promoted Undergraduate Universities, Different Educational Systems, Life Values

 

Page No: 225-230

Image Restoration Techniques Applied in Digitized Degraded Historical Documents

Mikriso Beni J. and Saalisdan Becher

Acunova, Mangalore 2K S Hegde Medical Academy, Mangalore, India

Abstract: the historical documents are the important traces of the history. Historical documents carry the information about the tradition, religion, science, literature, war strategies of the ancient times, which are very useful to understand the life and culture of the ancient civilizations. These historical documents are usually recovered from the archaeological findings. Historical documents are usually found degraded due to the straining because of many factors. The historical documents are found in hundreds of thousands in numbers, so take a lot of time for manual restoration of these documents. In this paper, a new algorithm is proposed, which can be used to restore the historical documents using the combination of digital image processing based image restoration techniques.

Keyword: Archaeological Findings, Historical Documents, Image Restoration Techniques, Show-Through, Straining

 

Page No: 231-235

Survey of Face Recognition Technology

Hanping Hu

Changchun University of Science and Technology, Changchun, China

Abstract: face recognition is a hot research topic in artificial intelligence field, and it is a pattern recognition based on information processing. This paper briefly introduces the characteristics of face recognition technology, the research background and the composition of the system, and introduces several commonly used algorithms in face recognition, and analyzes the main development direction of the research.

Keyword: Face Recognition, Face Detection, Feature Extraction

 

Page No: 236-240

Study of Passive Millimeter Wave Multi-Beam Antenna

Hao Wang

Changchun University of Science and Technology, Changchun, China

Abstract: The millimeter wave is between the centimeter wave and the optical band. It has the optical detection accuracy and the microwave all-weather working characteristic .Compared with microwave, the volume and weight of millimeter wave devices are smaller, especially for the design of missile borne weapons .The millimeter wave is narrow and the guidance precision is high. Passive millimeter wave has the ability of anti-jamming and anti-stealth. In this thesis, the key techniques of the millimeter wave focal plane array imaging are carried out in this paper: Based on analysis of the imaging theory of passive millimeter wave focal plane array, the main antenna used in millimeter wave is studied. The main use of millimeter wave radiometer is introduced, and the output signal of the radiometer is simulated and calculated by using the mathematical model of the simplified millimeter wave output signal.

Keyword: Millimeter Wave, Passive Millimeter Wave, Millimeter Wave Radiometer

 

Page No: 241-245

Research on the Generation of Multi-Frequency and Frequency Doubling Millimeter Wave in the Multilateral Band Based on RoF System

Hao Wang

Changchun University of Science and Technology, Changchun, China

Abstract: RoF is an attractive solution for future broadband wireless communication systems due to its large capacity and high flexibility for both fixed and mobile users. Millimeter-wave generation is a key technique to realize low cost and high transmission performance in RoF systems. In electrical domain, MMW signals beyond 60 GHz are difficult to generate and process due to restrictions on frequency responses of electronic devices. Hence, all-optical generation and distribution of MMW signals have attracted interest in recent years. In this paper, we propose a novel optical mufti-sidebands modulation (OMSB) to generate a high-power and high-frequency MMW signals. Several periodical optical sidebands are generated by employing a configuration of parallel phase modulators. Unlike heterodyning two waves, more than two optical sidebands will beat at a PD and contribute to generate a MMW signal with designed frequency. Since no optical filters or DC bias are used, the MMW signals have the evident character of high-power output. A generalized analytic expression for the generated frequency mufti-tupling MMW signal is developed. Simulation verifications and comparison results are also presented. The influences caused by non-ideal factors are discussed in detail, and undesired power ratios versus non-ideal factors are plotted and analyzed in the following sections. The proposed RoF system have better performance on transmission and anti-dispersion, and it's more suitable for long-distance transmission.

Keyword: Millimeter-Wave Generation, Phase Modulator, Frequency Multiplication, Optical Mufti-Sideband Modulation

 

Page No: 246-251

The Design of Three-tank System Decoupling Controller

Chenjie Zhang

Changchun University of Science and Technology, Changchun, China

Abstract: Three capacity system experiment platform is a multi-input multi output, time-varying, strong coupling and nonlinear experimental system for simulating the multi vessel process system. In this paper, a decoupling method based on nonlinear static feedback is used to control the liquid level in the three capacity experiment system. When the system satisfies a certain condition, the linear differential equations between output and equivalent new input can be found. After decoupling, the three capacity system can be decomposed into two independent single input single output linear subsystems. The PI control is used for each subsystem. The corresponding experimental results are given.

Keyword: Three Capacity System, Decoupling, PI Control

 

Page No: 252-257

Research on Automatic Apple Harvesting using Computer Vision Based on 3-D Depth Analysis and Colour and Shape Analysis

Walkley Michell, Rose Q Barlow and Agnes M Lance

University of Massachusetts at Lowell, Lowell, MA, USA

Abstract: In this paper, the automatic robotic apple harvesting algorithm is proposed. The new system is proposed for the automatic apple harvesting in the Himachal Pradesh and Jammu & Kashmir regions of India to overcome the labour shortage problem. The new algorithm will be developed using colour and shape analysis. Also, the new algorithm will be designed for the object positioning in 3-D space to increase the accuracy of the robotic arm movement. The new system will be developed using MATLAB simulator. The proposed algorithm will be developed to rectify the problem related to the false positives and false negatives (false decisions) by using 3-D depth analysis to facilitate the smooth and accurate robotic arm movement to minimize the crop damages due to wrong (false) decisions. The aimed accuracy is above 92% for the proposed algorithm.

Keyword: 3-D Depth Analysis, Apple Harvesting, Automatic Robot, Colour and Shape Analysis, Robotic Arm Movement

 

Page No: 258-262

The Research of Decision Tree Model Establishing Process

Chao Tang

Changchun University of science and technology Electronics and Information Engineering, Jilin Changchun, China

Abstract: Data mining from the database to extract implicit, potentially use the value of information process, it has been widely applied in many fields. Data classification is an important content in data mining, the classification of the common model such as decision tree, neural network and genetic algorithm. The decision tree algorithm with its easy to extract according to rules, a relatively small amount of calculation, can display the important decision attribute and the advantages of high classification accuracy and widely used. This paper mainly from two aspects, and the pruning process of establishing the decision tree model, and finally to the complexity of the decision tree and the classification accuracy for consideration, performance evaluation criteria of decision tree are presented.

Keyword: Data Mining, Decision Tree, Pruning, Evaluation Standard

 

Page No: 263-267

The Study on Characteristic and Encoding Technology of Depth Map

Kai Gao

Changchun University of Science and Technology, Changchun, China

Abstract: With the development of 3D technology, depth map becomes the critical element of stereo scene and 3D system, which owns the special characters reflecting the depth information of 3D scene. Considering the special characters, efficient compression methods are needed to encode the depth map. The study on the characteristic and encoding technology of depth map is far-reaching significance for 3D system.

Keyword: Depth Map, Characteristic of Depth Map, Encode, Stereo Scene

 

Page No: 268-274

Controller Parameter Tuning of Hydraulic Servo System Based on Random Search Method

Duanyuan Bai and Ji Zou 2

1Changchun University of Science and Technology, Changchun, China

2Changchun University, Changchun, China

Abstract: This paper discusses the composition of the hydraulic servo system, the characteristics of the servo system and the requirements of the control system are summarized. The mathematical model of the electro-hydraulic position servo system is derived. Based on the random search method, the integer order PID controller and the fractional order PID controller parameters are determined. Conclusion the random search method is an effective and simple method for setting parameters.

Keyword: Hydraulic Servo System, RasID, Parameter Tuning, Fractional Order Control

 

Page No: 275-279

Study on Preprocessing of Iris Recognition

Duanyuan Bai1and Ji Zou2

1Changchun University of Science and Technology, Changchun, China

2Changchun University, Changchun, China

Abstract: Iris recognition is a biometric recognition technology based on human physiological characteristics, and it has the advantages of unique, high stability, high recognition rate and high detection accuracy, which is a hot spot of identity recognition. Based on CASIA database, this paper discusses the process of iris recognition.

Keyword: Iris Recognition, Preprocessing, Hough Method, Canny Algorithm

 

Page No: 280-292

Optimization and Numerical Analysis of Solar Heat Flux at Various Collector Inclination Angles in Thermosyphon Device

Walton K Norma, Judson Herman, Edward W Barry and Mackintosh S Sherry

School of Energy Engineering, Universiti Sains Malaysia, Perak Branch Campus, Perak, Malaysia

Abstract: The objective of this paper is to perform numerical investigation on effect of riser tube on system parameters in a thermosyphon solar water heater in Mandalay, Myanmar. Flat plate type solar collector is used as solar energy receiver and water-glycol (80%-20%) solution is used as circulating fluid in the system. The riser size is varied from 0.015 m to 0.03 m. The number of risers in the system is changed from 3 to 8. The thermosyphon system is inclined with 45˚.The theoretical analysis is performed by using MATLAB software. The flow and temperature distribution in the riser tube are also simulated by using FLIENT software. The largest diameter (0.03m) gives the highest mass flow rate, useful energy, efficiency. The maximum collector efficiency is 78% and the optimum number of risers that gives the maximum collector efficiency is 5. The CFD simulated temperature distribution along riser tube also show a good agreement with theoretically calculated results. From this research,the useful data can provide to construct the indirect thermosiphon solar water heater.

Keyword: Thermosyphon, Solar Water Heater, System Parameters, Riser Tube

 

Page No: 293-298

Situation Analysis of Electro-Hydraulic Servo System Advanced Control Strategy

Duanyuan Bai1 and Ji Zou 2

1Changchun University of Science and Technology, Changchun, China

2Changchun University, Changchun, China

Abstract: This paper reviews the composition of the hydraulic servo system, the characteristics of the servo system and the requirements of the control system are summarized. Research hotspot of hydraulic servo system has been revealed intelligent control is the main trend of hydraulic servo system control. The application of advanced control strategy in hydraulic servo system is further discussed in this thesis.

Keyword: Electro-Hydraulic Servo System, Contemporary Control Theory, Intelligent Control, Fractional Order Control

 

Page No: 299-303

Research on Data Storage Mode of Cloud Computing Platform

Hanping Hu

Changchun University of Science and Technology, Changchun, China

Abstract: Based on the structure and characteristics of cloud computing, the paper analyzes the system structure and characteristics of cloud computing environment, analyzes the Google cloud storage and management technology, and finally the development of cloud storage and management technology.

Keyword: Cloud Computing, Data Storage, Data Management

 

Page No: 304-311

Creating Constructivist Learning Environments Using WebQuests

Hongmei Li

International College, Yunnan Agricultural University, Kunming, China

Abstract: This paper discusses the use of WebQuests to create a constructivist learning environment to support student learning. The author firstly justifies the implementation of introducing WebQuests into teaching, relating it with some contemporary pedagogic theories such as constructivism, constructive alignment and encouraging deep-learning approaches, then provides an account for the whole process of designing, applying, assessing the WebQuest model practice in details. The evaluation of the effectiveness of WebQuests is logically analyzed based on 52 anonymous systemic questionnaires which consisted of 13 quantitative and 6 qualitative questions. Delightfully, the WebQuest practice is successful and the findings are quite delightful, but some future developments relate to increasing the access students have to technology.

Keyword: Constructivist Learning Environment, WebQuests

 

Page No: 312-318

The Study about the Cultivation of Engineering Students’ Information Literacy

Xiuming Tang 1, Aihua Xu2 and Jianjun Xu 2,*

1The College of Petroleum Engineering, Northeast Petroleum University, Daqing, 163318, China

2The College of Electrical Information Engineering, Northeast Petroleum University, Daqing, China

Abstract: In this paper, the petroleum college students make a preliminary exploration about how to develop information literacy, making a helpful attempt for the growth and success of college students. As the highly development of the informational technology, we are surrounded by a large variety of information. It is of vital important to have proper information literacy. As a student of Petroleum College, which is trained for oil field as a senior technical personnel by Petroleum College, should adapt to the development of the times, constantly improve their information literacy in themselves.

Keyword: Information Cultivation, Intellectual Property, Production Process

 

Page No: 319-324

Research on Core Competitiveness of TPL Enterprises Based on G-EAHP

Wei Chen

Chongqing Jiao tong University, Department of Management, Chongqing, China

Abstract: Considering the complexity and grey characteristic of TPL’s core competitiveness evaluation, this paper gives the G-EAHP evaluation model based on EAHP and grey correlation analysis method. The core competitiveness evaluation index system of TPL enterprises is established from several angles. Finally, the feasibility of this model is verified by a case study.

Keyword: TPL; Core Competitiveness; Index System; G-EAHP

 

Page No: 325-331

Rethinking on the Alienation of Modern Competitive Sports

Yongshan Peng*

School of Physical Education, Jiangxi University of Finance and Economics, Nanchang, China

Abstract: The scientific development is like the double-edged sword, and the competitive sports are no exception. In the progress of its development, competitive sports inevitably have some unexpected results, and the alienation has been concerned by the people in recent years. From the aspects of Olympic spirit, fairness, professionalism and modern technology, this article mainly focuses on the sports alienation, and people expect to find a solution to the problem.

Keyword: Competitive Sports, Alienation, Humanity Spirit

 

Page No: 332-336

Analysis on the Influencing Factors of Knowledge Management in University Libraries

Yingxin Zhai and Liping Yan

Changchun University of Science and Technology, Changchun, China

Abstract: Because the university library plays an important role in the University, with the increase of the business and the scale of the library, the development of the university library has gradually been restricted by information and network. Through the introduction of the concept of knowledge management, the paper analyzes the necessity and feasibility of knowledge management in university library, and analyzes the factors that affect the knowledge management.

Keyword: University Library, Knowledge Management, Influence Factor


Page No: 337-341

The Application of the Self-service Library Circulation Service System

Liping Yan and Yingxin Zhai

Changchun University of Science and Technology, Changchun, China

Abstract: In order to adapt to the development of information era, colleges and universities to further realize the digitized campus construction. The appearance of digital library for the huge amounts of information resources integration, processing, extraction of the 21st century, and service has a very important role. Library, with its unique advantages, make full use of advanced information technology facilities, comprehensive use of information technology, both provides a fast and convenient information service for the teachers and students, and laid a solid foundation for the digital construction of the library. Make play a better teaching, and service in university library, the function of management education. This paper simply introduces the working principle of RFID and RFID self-service system borrowed in the library use of the advantages and disadvantages.

Keyword: RFID, One-Card, Self-service Library

 

Page No: 342-349

Alloy Sheet Metal Drawing Process Analysis with Finite Element Method

Shasha Dou1, 2 and Jiansheng Xia1, *

1College of Mechanical Engineering, Yancheng Institute of Technology, Yancheng, China

2College of Mechanical and Electrical Engineering, Nanjing University of Aeronautics & Astronautics, Nanjing, China

Abstract: Using elasto-plastic finite model, Prandtl-Reuss flow rule, Hill’s yield criterion respectively, the Updated Lagrangian Formulation (ULF) and the four degenerated shell element, the incremental elastoplastic large deformation finite element model is established. The friction phenomenon of slippage and viscosity at the boundary interface is based on increment of revision Coulomb rule. An extended rmin rule is used to formulate the boundary condition. The simulation is carried out to study the Drawing process by different die structure and parameter. The results are provided reference for designers and analysts.

Keyword: Finite Element, Sheet Metal, Drawing Process

 

Page No: 350-355

Design and Implement of Intelligent Mobile Power Supply of Solar Energy Based on MCU

Huiying Zhang

College of Information and Control Engineering, Jilin Institute of Chemical Technology, Jilin, China

Abstract: This paper uses AT89C52 as the controller and the charging chip that TP4056 is used for single lithium-ion battery recharged, finally in a DC/DC booster chip of booster to the stability of the battery voltage 5V voltage and supplied for the load circuit. In addition, the ADC0809 is used for testing lithium battery voltage, and the lithium battery voltage testing circuit is set according to the instruction, with five light-emitting diode LED display the distributed level to the battery. The solar charger has the very high accuracy of float charging voltage, gruelling charging equipment can meet the requirement of charging voltage of charging demand.

Keyword: Solar Mobile Power Supply, AT89C52, ADC0809, DC-DC Booster Module

 

 

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