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pISSN : 1975-7700 / eISSN : 2734-0570

2020 KCI Impact Factor : 0.42
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2013, Vol.8, No.2

  • 1.

    The Development of Augmented Reality Facility Database for Water Works Pipe Networks Management

    강병모 | Byoung-Chan Jeon | Hong,In-Sik | 2013, 8(2) | pp.1~8 | number of Cited : 1
    Abstract PDF
    The concern with management of underground facility has been growing for the last several years. As several researchhave been made on management for waterworks pipe using TDR technology. In contemporary, development of ITtechnology in all areas of a large ripple effect technology is the Augmented Reality(AR). Also, various facility managementsystems using AR technology are studied and developed with the advancement of the smart device. AR is essentialtechnology for the implementation of facility management system, which has GPS, camera and sensor of smart device. Andit manages data of underground facility with pipe-networks segment DB effectively and provides practical effectiveness ofentire monitoring system through GPS receiving module and sensor network communication on AR. In conclusion, thispaper proposed facility database for AR-based management system using SQLite. Proposed database is tested through thesystem simulation.
  • 2.

    Development of Mobile Arcade Game using Unity 3D Engine

    KIM, SOO KYUN | 강지훈 | 송기섭 and 2other persons | 2013, 8(2) | pp.9~16 | number of Cited : 1
    Abstract PDF
    Ever since the introduction of Iphone in 2009, mobile contents and app store had been rapidly developing, andsmartphone population in Korea has now reached 30 million consumers. During this period of rapid growth, a lot of gameusers have shifted from pc-based online game to mobile games, and new game engines are continuously coming out tocounter against the wide variety of online game platforms. This paper will explain how the past method of game-makingprocess that requires complex advance preparation can be replaced by an easier and simpler method through the usage ofUnity 3D Engine. It will show how Unity 3D Engine aids in complicated processes like optimization, G-Senser, andShader. Additionally, the paper will discuss how to actualize arcade games that are developed based on easy interface,simple controls, and character concepts targeted for teenage girls to women in twenties.
  • 3.

    An Object Tracking System using CUDA Based Parallel CAMshift Algorithm

    조지훈 | LEE SANG GU | 2013, 8(2) | pp.17~24 | number of Cited : 1
    Abstract PDF
    In this paper, we implement a real-time robust image object tracking system for PTZ(Pan-Tilt-Zoom) cameras. For imageobject tracking, we use the CAMshift algorithm based on the HSV color image distibution of detected moving objects. AsCAMshift algorithm requires much floating-poing computations, image flickering and data bottleneck are sometimes occurredaccording to the CPUs. In order to overcome the drawbacks, in the proposed system, we parallelize CAMshift algorithm byusing GPU(Graphic Processing Unit) in the CUDA enviorment. The experimental result shows that the speedup factor has12~14 times faster as compared as CPU method. This system can be applied to an effective and faster image surveillancesystem for continuous object tracking in a wider area.
  • 4.

    Design and Development of M-Learning Game-based Contents

    Lee chan sub | 2013, 8(2) | pp.25~32 | number of Cited : 0
    Abstract PDF
    Recently, interest for smart phone is increasing more and more because of performance elevation of InformationTechnology and portable device. The smart phone added a computer function in the cellular phone. The smart phone issupplied enough, the research value is big from portable and use. This paper designed and developed usable M-Learninggame contents in Android smart phone. Contents is a word learning program that make it possible to study 4 countrieswords to game in smart phone environment and development was optimized by Android 2.3 (API Level 9), WVGA800. Developed App considered 350 images, 6480 learning effects through 1080 word, especially interest induction through timecontrol module, and investigated satisfaction through 30 experimenters and analyzed the result.
  • 5.

    Qualitative Case Studies on Marketings with Tablet PCs in a Pharmaceutical Company

    전형숙 | Jaeim Bahng | Keol Lim | 2013, 8(2) | pp.33~48 | number of Cited : 0
    Abstract PDF
    According to the wide spread of smart devices, some of the pharmaceutical companies have distributed tablet PCs to thepersonnel for a new type of business activities and marketings. This study was conducted to understand the change inrelationships and phenomena among a pharmaceutical company, staff members, and doctors in tablet PC-based marketingenvironments. The authors observed and interviewed with 10 staffs working at multinational pharmaceutical corporation and3 doctors, and analyzed the results in a qualitative way. The results included the effects of new marketing strategies on theparticipants including phenomenological change in relation to acceptance or denial of new marketing methods. Based on theresults, it was suggested that education for understanding smart devices, education for better communication marketingstrategies with new devices, and the constructions of the community of practice should be required.
  • 6.

    Design and Analysis of 6GHz Microstrip Patch Antenna with Inset Feeding

    Choi, Jae Yeon | 2013, 8(2) | pp.49~54 | number of Cited : 0
    Abstract PDF
    Inset feeding type patch antenna for 6GHz is designed. The performance difference between the coplanar feeding andaperture coupling is also analysed. The coplanar feedline tends to radiate more than the buried feedline, because it isprinted on the same substrate as the radiator, which has a high radiation efficiency. It can be showed and calculated thatradiation pattern and return loss of patch antenna with inset feeding which is resulted from finite-difference time-domainsimulating method. The characteristic of antenna performance is much better than the coplanar feeding pattern.
  • 7.

    Performance Improvement of Entropy Maximization using MOSFC-Gradient Ascent

    Young-Sub Kim | 이영주 | Kwangseok Lee and 1other persons | 2013, 8(2) | pp.55~62 | number of Cited : 1
    Abstract PDF
    In this paper, we propose the method of MOSFC-Gradient Ascent improving the Gradient Ascent algorithm. This methodobtains fast convergence and accuracy of separate results in Entropy maximization method being one among the existingICA(Independent Component Analysis) with the method for performing the sound source separation. If Entropy is steadilyincreased, the proposed method will have characteristic of fast convergence through increase of learning constant. Also itwill define as search object of several demixing matrix made in random other start value. As searching optimal demixingmatrixs in parallel, the proposed method is retained on high demixing performance without decrease of convergence speedeven though number of mixed signals is increased.
  • 8.

    A study on De-Interlacing Applying the Interpolation of Horizontal Direction and Improved ELA

    Kyung-hoon Baek | 2013, 8(2) | pp.63~69 | number of Cited : 3
    Abstract PDF
    This paper proposes the improved de-interlacing method that converts the interlaced images into the progressive images byone field. In the first, it calculates inter-pixel value applying Newton's interpolation of horizontal direction from upper.lower5 pixel values of missing pixel. Using inter-pixel values obtained from interpolation of horizontal direction and upper.lower 5pixel values, it makes an accurate estimate of the direction by applying the corelation between upper and lower pixel. Thecorelation between upper and lower pixels is calculated at the edge direction of missing pixel by using values obtained frominterpolation of horizontal direction and known pixels. The edge direction is determined as the direction that the corelationbetween upper and lower pixels is minimum. Thus, missing pixel is calculated by doing the average of upper.lower pixelobtained from predicted direction of edge. From simulation results, it is shown that the proposed method improves bothsubjective and objective image quality and improves quantitatively PSNR at th extent of 0.5 ~ 1.0dB as compared withprevious de-interlacing methods.
  • 9.

    The Procedure Transformation of Restructured Program for Higher Performance

    송월봉 | 2013, 8(2) | pp.71~80 | number of Cited : 0
    Abstract PDF
    For the improvement in ability of processing speed, the parallel processing system should be considered not only theelements of hardware but also the elements of software. Exactly the capability of parallel computer is impossible withoutsoftware technic for detection the parallelism. In this paper, Using the restructured sequential loop, The proceduretransformation method for the advanced performance is proposed. This is a procedure for the automatic conversion of asequential loop into a nested DOALL loops at the compile time. For this, the source program of Parafrase Ⅱparallelcompiler is analyzed and through this existing Parafrase parallel compiler, a improved procedure transformation method toparallel processing effectively in the nested loop is implemented. This proposed parallel scheme is certificated to obtain amore parallelism effect in the reiterative sentence.
  • 10.

    UAV System Modeling for Reliability and Availability Analysis

    이슬기 | 김동성 | Jong Sou Park | 2013, 8(2) | pp.81~91 | number of Cited : 0
    Abstract PDF
    UAV is one kind of the aircraft, so it has a special characteristic that cannot be repaired when a failure occurs duringmission, and most of critical failures might lead a crash, that is a huge cost loss. Therefore it needs to be evaluated to thepossibility of successful mission accomplishment by availability and reliability analysis. In this paper, we divide the UAVsystem (UAS) into mission state and idle state after that construct each model. In idle state we use fault tree for modelingthe system, in mission state, we use continuous time Markov-chain (CTMC) for representing changes of the system bymission progress, fault tree for detailed components, and implement using SHARPE (Symbolic Hierarchical AutomatedReliability and Performance Evaluator) tool. We calculate mission availability and mission reliability by using these models.
  • 11.

    Classifier Capable of Handling Incomplete Data using Reparation Technique

    Lee Jong Chan | 한기선 | 2013, 8(2) | pp.93~100 | number of Cited : 0
    Abstract PDF
    Classification of the numerical data is a very important research topic in machine learning. But the incomplete data inwhich certain features are missing, is very common in real world applications. For solving this problem, a data reparationapproach base on the Fuzzy c-Means(FCM) clustering is used to estimate the incomplete data. This approach calculates thecentroid vectors of the clusters and then determined the membership probability, and repeat this process until the optimumsolution is found. Then a new method is proposed to classify the repaired data and it has an outstanding performance. Usually, classification problem can be separated into two phases: learning phase and classification phase. Many methodsdealing with incomplete data in classification problem have been proposed, but most of them only focus on the processing ofhandling incomplete data in learning phase. For the incomplete value appearing in the classification phase, almost all of thecurrent approaches can not work. So handling incomplete data in both learning and classification phase is important andnecessary to be applied for solving the real world problems.
  • 12.

    A Study on the Applicability of SKOS to KDC

    Inho Chang | 2013, 8(2) | pp.101~108 | number of Cited : 0
    Abstract PDF
    The aim of SKOS is to enable a wider re-use and a better interoperability of the existing vocabulary and to makepossible a porting to a shared space, without changing the existing conceptual vocabulary use environment, based on asimplified model. However, if you directly convert an existing knowledge organization systems to SKOS, they may becomean expression different from what was originally intended. Especially, classification systems can be an expression which canbe neither delivered accurately nor intended rather than thesauri or taxonomies. In this research, we tried to apply SKOS tooriginal purpose of KDC without any loss, compensate meaning structure of thesauri and combine them mutually. Inaddition, we implemented existing skos-owl1-dl.rdf by extending it as a test.
  • 13.

    Analysis of Depth Perception Difference among 3D Display Devices to the Same Parallax

    이원재 | Lee Ju-Hwan | Choi Yoo Joo | 2013, 8(2) | pp.109~116 | number of Cited : 0
    Abstract PDF
    In this study, the differences in the perceived depth depending on the type of 3D display device were empiricallyinvestigated using the stereoscopic 3D images including a primary object or person in the center of the image. First, theexperiment images were generated by dividing the depth of the primary object or person into 4 steps. Next, the experimentimages were displayed through the 4.3-inch mobile 3D display, then the participants were instructed to adjust the parallaxfor the primary object to get the same depth perception for the same experiment image through the 27-inch or 55-inch 3Ddisplay device. As a result, there were significant differences in the depth perception through three different devices in thesame parallax condition. Finally, we represented the difference of the depth perception among the different devices by theparallax function derived from regression analysis. These characteristics of device-specific depth perception with respect toparallax are important in the 2D-to-3D conversion process, and these understandings can be used as guidelines.
  • 14.

    The Study of Factor that Affects the Stigma and Attitude toward an Adult with a Disability among Nursing Students

    Myoung Jin Kwon | Kim Mi Jin | 김영희 | 2013, 8(2) | pp.117~125 | number of Cited : 3
    Abstract PDF
    Purpose: The purpose of this study was designed to identify the factor influencing attitude after analyzing the relationshipbetween attitude, experiences related with the disabled and stigma toward an adult with a disability in nursing college students. Methods: The subjects of this study were 145 among nursing college students in Daejeon. Data were collected during May,2012. Structured questionnaires were used for data collection. Data were analyzed by descriptive by statistics, t-test, Pearsoncorrelation coefficients, and simple regression analysis of SPSS 18.0 program. Results: The major findings of this study wereas follows : There was a significant relationship between stigma and attitude toward adult with a disability(r=.509, p=.000). Attitude of significant factor explained 25.4% of stigma toward adult with a disability in college students(F=49.984, p=.000). Conclusion: Findings of this study suggest the need for development of intervention strategies and clinical education todecrease negative attitude and stigma toward adult with a disability.
  • 15.

    A Study on Networks for Drug Delivery Systems: Microneedle and Skin

    박정현 | 신예원 | 이성훈 and 4other persons | 2013, 8(2) | pp.127~135 | number of Cited : 1
    Abstract PDF
    Drug can be administered through oral. parenteral, transdermal, nasal, and pulmonary route, but each have its owndisadvantage. The drug delivery system(DDS) is an advanced technology that effectively delivers therapeutic drugs to desiredtargets and thereby reduces side effects and increase efficacy. Microneedle therapy system(MTS) is advancing in the field ofmedicine and skin care which can improve drug diffusion into skin with no pain. In this study, we introduce the basicconcepts of DDS and MTS including the structure and function of skin, so that researchers may benefit in their attentionon the production of microneedle and promoting research on the area.
  • 16.

    An Empirical Study of a Client's Dependence on a Vendor and Switching Costs in IT Outsourcing

    Sung Yul Ryoo | Minhe Lee | 2013, 8(2) | pp.137~148 | number of Cited : 0
    Abstract PDF
    A strategic decision to discontinue an existing IT outsourcing contract could incur substantial switching costs whenterminating the relationship with an IT service vendor and securing an alternative. The purpose of this research is toinvestigate the impact of a client's dependence on a vendor, uncertainty, and a client's vendor management capability on IToutsourcing switching costs in IT outsourcing context. A total of 210 data collected from field survey were analyzed forthis study. The results indicate that both a client's dependence on a vendor and uncertainty positively influence IToutsourcing switching costs, but a client's vendor management capability negatively influences IT outsourcing switching costs. And the results indicate that a client's vendor management capability has moderating effect on the relationship between aclient's dependence on a vendor and IT outsourcing switching costs.
  • 17.

    Study on the Factors of the Local Governments' Support for Social Enterprises -Continuity of Workers Job Satisfaction and Continuity-

    이준석 | Kim,Dae-Won | 2013, 8(2) | pp.149~161 | number of Cited : 1
    Abstract PDF
    In this study, the local governments' support for social enterprises is to analyze the factors from the perspective of socialenterprise practitioners. And Satisfy social enterprise of corporate social workers work continuity between causal examine it. The workplace affects satisfaction factors of social enterprise practitioners support infrastructure and financial support factors onworkplace satisfaction continued influence on the performance of corporate results. These results, how in the field of efficientand effective support from the perspective of social enterprise practitioners will be able to suggest a methodology.
  • 18.

    Comparison of Inward FDI and Outward FDI’ Characteristics in Taiwan

    SANGWOOK KIM | Jin YUji | 2013, 8(2) | pp.163~174 | number of Cited : 0
    Abstract PDF
    This paper compare the inward FDI and outward FDI structure in China, Taiwan by period. Taiwan is the importantfactor in Asian economy, also is the important FDI inward region and FDI outward region. This paper use the ICMOEAdata. The FDI inward in Taiwan started from 1950s, the big scale FDI inward started from 1981-2000 period. The OverseasChinese investment play important role in 1980s, after 1980s, the foreign investment play more important role in FDIinward. The most inward FDI come from British Overseas Territories in the Caribbean, United States of America,Netherlands, Japan, Hongkong(China), Singapore and United Kingdom. The inward FDI mainly concentrated in themanufacturing, and more invested in the financial and insurance, wholesale and retail trade. The outward FDI moreincreased from 1990s in China, Taiwan. In particular, the investment environment improvement of China affect positivelythe outward FDI of China, Taiwan. Excepting the China, the outward FDI concentrated in the United States of America andBritish Overseas Territories in the Caribbean. The outward FDI more concentrated in the financial and insurance and theservice industry, except the manufacturing. And outward FDI to China absolutely concentrated in the manufacturing.