Hoseo University Research Articles

오일교환경보 알고리즘 및 표시장치 개발

Dept. of Automotive Engineering, School of Mechanical Engineering, Hoseo University(Received February 27, 2014 ; Revised April 1, 2014 ; Accepted April 3, 2014)Abstract − This paper presents an engine oil change warning algorithm based on the test results of a small dip-stick-gage-type engine-oil-deterioration-detection sensor, software to realize the algorithm and a display deviceto apply the software. The algorithm determines the engine oil deterioration condition from the rate of changein the dielectric constant based on the average measured capacitance at 80

고확장성, 고가용성을 위한 ALTIBASETMLOG ANALYZER 기법에 관한 연구

Abstract Recently, the need for non-stop service is increasing by the business mission-critical Internet banking, e-payment, e-commerce, home shopping, securities trading, and petition business increases, clustered in a single database of existing, redundant research on high-availability technologies related to technique, etc. is increasing. It provides an API based on the Active Log in addition to the technique of redundancy, ALTIBASETM Log Analyzer (below, ALA), provides scalability and communication of the same model or between heterogeneous. In this paper, we evaluated the performance of ALA by presenting the design of the database system that you can use the ALA, to satisfy all the synchronization features high scalability and high availability, real-time. Key Words : Distributed database, Clustering, Replication, High availability, High scalability Received 21 January 2014, Revised 8 April 2014Accepted 20 May 2014Corresponding Author: Sun-Bae Kim(Graduate School of Venture, Hoseo University)Email: hsyang@hoseo.eduⒸ The Society of Digital Policy & Management. All rights reserved. This is an open-access article distributed under the terms of the Creative Commons Attribution Non-Commercial License (http://creativecommons.org/licenses/by-nc/3.0), which permits unrestricted non-commercial use, distribution, and reproduction in any medium, provided the original work is properly cited.ISSN: 1738-1916

키넥트를 이용한 걷기게임 '팔도강산3' 개발 및 효과성 연구

We have developed a serious game for the elderly named ‘Paldokangsan3’ as a next version of ‘Paldokangsan2’ which was a walking game with memorization in shopping streets using controllers of hand buttons and foot boards with PC developed in 2012. The interface of had buttons and food boards were changed into the interface of motion capture with the aid of Kinect. The expected effects are improvement of memorization, improvement of concentration ability to find out items in the vision, improvement of vitality through physical walking actions, as well as improvement of mental health through entertainment activities of game play. We have tested 25 volunteers of more than 65 years old in Cheonan city community center for the elderly for 2 weeks. We got the result that the game play was showing positive effectiveness on memorization, physical exercise and self-esteem in mental health area of the elderly. Keyword : Serious Game, Game for Elderly, Walking Game, Kinect, Motion Capture Received: Dec. 27, 2013 Accepted: Jan. 14, 2014 Corresponding Author: KyungSik Kim(Hoseo University) E-mail: kskim@hoseo.edu ISSN: 1598-4540 / eISSN: 2287-8211 C The Korea Game Society. All rights reserved. This is an open-access article distributed under the terms of the Creative Commons Attribution Non-Commercial License (http://creativecommons.otg/licenses/by-nc/3.0), which permits unrestricted non-commercial use, distribution, and reproduction in any medium, provided the original work is properly cited.

공과대학생의 두뇌우성 사고유형과 셀프리더십과의 관계 연구

The purpose of this study was to identity the relationships of sub factor among the brain dominance thinking types(A,B,C,D quadrant thinking type) is based on the Whole Brain Modal and self-leadership by Manz. The subjects were 102 undergraduates students from the Hoseo university in Cheonan. The results of this study as follows ; first, the brain dominance thinking type A was the highest and type C was highly rated. Second, the brain dominance thinking type A was not correlated type C and type D. Third, the brain dominance thinking type C and self-leadership sub factor was significantly positively correlated.

LED 조명용 카본 마그네슘 신소재 방열 특성 연구

Department of Co-op, Hoseo University, Asan 336-795, Korea(Received November 1, 2013; Accepted November 18, 2013)Abstract: This is the study on the development of fusion heat dissipation of carbon magnesium materials. The purpose of this study is for effective utilization of heat emission which is the core of LED lighting. The result of study enabled the derivation of side satisfying result of making the surface temperature of lighting to be below 70℃ (actual measurement: 58℃) using magnesium. The lighting products that use magnesium was made possible based on the result of this study. Also from the performance aspect such as light distribution, the measurement of light efficiency demonstrated the level of 90 lm/W. Therefore the commercialization of lighting was made possible and the efficiency could be further enhanced by supplementation of LED performance.Keywords: LED lighting, Magnasium(Mg), Heat dissipation, LED junction, New materials, Characteristics

손잡이/발판 컨트롤러를 이용한 걷기게임 '팔도강산2' 개발 및 효과성 연구

ABSTRACT We have developed a serious game for the elderly named ‘Paldokangsan 2’ in 2012 as a next version of ‘Paldokangsan 1’. ‘Paldokangsan 1’ was a walking game for two people using controllers of armrests and footboards with PC. ‘Paldokangsan 2’ had additional purpose to assist cognitive, physical, and psychological functions of the elderly. Especially, walking activity was implemented in a way that a player walks around the old traditional market place in 1970’s while remembering and choosing healthy food to buy. We also developed two mini games for the elderly and people with functional disability with the similar purpose as ‘Paldokangsan2’. 219 older adults (age≧ 65) recruited from Asan city community center participated in the study. The result showed that the game play exerted positive effects on memory, concentration and vitality of the elderly.Keywords : Serious Game, Game for Elderly, Walking, Cognitivity, Memorization Received: Jan. 16, 2013 Revised: May 20, 2013 Accepted: Jun. 17, 2013Corresponding Author: KyungSik Kim(Hoseo University)E-mail: kskim@hoseo.eduISSN: 1598-4540 / eISSN: 2287-8211Ⓒ The Korea Game Society. All rights reserved. This is an open-access article distributed under the terms of the Creative Commons Attribution Non-Commercial License (http://creativecommons.otg/licenses/by-nc/3.0), which permits unrestricted non-commercial use, distribution, and reproduction in any medium, provided the original work is properly cited.

A Study On Related to Test and Evaluation of Nursing Information System

Abstract Currently, the domestic nursing information system software products are being developed competitively with the participation of many companies, generating quantitative development with high value added. However, it is true that the study that concurrently adds qualitative enhancements to such quantitative development has been inadequate. In order to secure international competitiveness in the field of nursing information system software, it is necessary to establish quality requirements on this system, and along with it, establish an evaluation system on the nursing information system software products. The purpose of this study is to analyze the accompaniment and technology of the nursing information system, and by identifying the requirements, establish test and evaluation system of the said system. Key Words : Nursing Information System, Requirements, Evaluation System, Quality Evaluation Received 21 August 2013, Revised 17 September 2013Accepted 20 September 2013Corresponding Author: Hae-Sool Yang(Graduate School of Venture, Hoseo University)Email: hsyang@hoseo..eduⒸ The Society of Digital Policy & Management. All rights reserved. This is an open-access article distributed under the terms of the Creative Commons Attribution Non-Commercial License (http://creativecommons.otg/licenses/by-nc/3.0), which permits unrestricted non-commercial use, distribution, and reproduction in any medium, provided the original work is ISSN: 1738-1916 properly cited.

Determinants and pattern of entrepreneurial failure

Abstract Research about business failure was focused on finding the reason of bankruptcy. This research tries to analyze reason and pattern of entrepreneurial failure. Based on 20 entrepreneurial failure cases, we figure out the reason of entrepreneurial failure, utilizing liability of newness and ERIS model. We find that start-up firms in Korea have liability of newness, such as lack of managerial capability, failure of R&D/commercialization, and difficulty of securing marketing channel. Also, we typologize 4 kind of entrepreneurial failure – Lack of preparation of business, failure of resource mobilization, absence of strategy, and failure of marketing. Key Words : Entrepreneurial failure, Liability of Newness, ERIS, Business failure pattern, Population ecology Received 1 May 2013, Revised 20 May 2013Accepted 20 May 2013Corresponding Author: Ha, Kyu Soo (Hoseo University) Email: ksh@hoseo.ac.krⒸ The Society of Digital Policy & Management. All rights reserved. This is an open-access article distributed under the terms of the Creative Commons Attribution Non-Commercial License (http://creativecommons.otg/licenses/by-nc/3.0), which permits unrestricted non-commercial use, distribution, and reproduction in any medium, provided the original work is properly cited.ISSN: 1738-1916

Operation strategy of terrestrial broadcasting system on channel image and N-screen service

Abstract This study was to examine the operation strategy of terrestrial broadcasting system on channel image and N-screen service. Nowadays, terrestrial broadcasting system provides video streaming service based on internet. In other words, terrestrial broadcasting system provides N-screen service through TV-PC-Smart phone-Tablet PC. But it is different for terrestrial broadcasting system to analysis the choice criterion of program. Only, channel image of terrestrial broadcasting system expanded into N-screen. Finally, channel image of terrestrial broadcasting system is the competition strategy. It is necessary for terrestrial broadcasting system to prepare the strategy of program choice for users, original contents, new platform and service in connection with N-screen. Key Words : N-screen, Channel image, contents choice, territorial broadcasting system, original contents Received 18 May 2013, Revised 15 June 2013Accepted 20 June 2013Corresponding Author: Ha, Kyu Soo(The Graduate School of Venture, Hoseo University) Email: ksh@hoseo.eduⒸ The Society of Digital Policy & Management. All rights reserved. This is an open-access article distributed under the terms of the Creative Commons Attribution Non-Commercial License (http://creativecommons.otg/licenses/by-nc/3.0), which permits unrestricted non-commercial use, distribution, and reproduction in ISSN: 1738-1916 any medium, provided the original work is properly cited.

A Study on the Relationships among Intrinsic Motivators, Psychological Empowerment, Affective Commitment and Service Quality

Abstract The purpose of this study was to investigate the relationships among intrinsic motivators, psychologicalempowerment, affective commitment, and service quality among hotel industry employees. For this study, data were collected from 233 hotel employees in Seoul Metropolitan City with self-administered questionnaires and analyzed using structural equation modelling technique. This study found that two job characteristics variables(job challenge and job autonomy) had positive effects on hotel employees' psychological empowerment; that three job characteristics variables(job challenge, job variety and job autonomy) and psychological empowerment had positive effects on hotel employees' organizational commitment; and that psychological empowerment and organizational commitment had positive effects on hotel employees' service quality. Key Words : Intrinsic Motivators, Psychological Empowerment, Organizational Commitment, Service Quality, Hotel Employees. Received 29 June 2013, Revised 20 July 2013Accepted 20 July 2013Corresponding Author: Sun-Bae-Kim(Hoseo University)Email: sunbkim@gmail.comⒸ The Society of Digital Policy & Management. All rights reserved. This is an open-access article distributed under the terms of the Creative Commons Attribution Non-Commercial License (http://creativecommons.otg/licenses/by-nc/3.0), which permits unrestricted non-commercial use, distribution, and reproduction in any medium, provided the original work is ISSN: 1738-1916 properly cited.

Leptin: Making It Live Up to Its Promise Using Natural Products

Journal of Medicinal FoodVol. 16, No. 1 EditorialLeptin: Making It Live Up to Its Promise Using Natural ProductsSunmin Park, James W. DailyIII, and Young-Eun LeeSunmin ParkDepartment of Food and Nutrition, Hoseo University, Asan, Chungnam, Korea.Search for more papers by this author, James W. DailyIIIDaily Manufacturing Inc., Rockwell, North Carolina, USA.Search for more papers by this author, and Young-Eun LeeDepartment of Food and Nutrition, Wonkwang University, Iksan, Jeonbuk, Korea.Search for more papers by this authorPublished Online:8 Jan 2013https://doi.org/10.1089/jmf.2013.1601.edAboutSectionsView articleView Full TextPDF/EPUB ToolsPermissionsDownload CitationsTrack CitationsAdd to favorites Back To Publication ShareShare onFacebookTwitterLinked InRedditEmail View article"Leptin: Making It Live Up to Its Promise Using Natural Products." , 16(1), p. 1FiguresReferencesRelatedDetailsCited byAntioxidant Activity in Extracts of 27 Indigenous Taiwanese Vegetables23 May 2014 | Nutrients, Vol. 6, No. 5 Volume 16Issue 1Jan 2013 InformationCopyright 2013, Mary Ann Liebert, Inc. and Korean Society of Food Science and NutritionTo cite this article:Sunmin Park, James W. DailyIII, and Young-Eun Lee.Leptin: Making It Live Up to Its Promise Using Natural Products.Journal of Medicinal Food.Jan 2013.1-1.http://doi.org/10.1089/jmf.2013.1601.edPublished in Volume: 16 Issue 1: January 8, 2013Online Ahead of Print:December 20, 2012PDF download

고속 열유체 저어널 베어링에서 단일유체로서의 다등급 엔진 오일과 그 첨가액체들의 혼합물에 대한 성능 비교

Dept. of Automotive Engineering, Hoseo University(Received February 7, 2012; Revised March 4, 2012; Accepted March 5, 2012)Abstract − To product multi-grade oil like engine oil, a sort of mineral base oil is mixed with a fundamentaladditive liquid package and a polymer liquid as viscosity index improver in order to improve the lubricatingproperty of oil. That is, engine oil is the mixture of more than two fluids. In this paper, it will be systematicallyorganized the governing equation describing non-Newtonian thermo-hydrodynamic lubrication related with themixture of incompressible fluids based on the principle of continuum mechanics. Then, in order to find howthe thermal analysis effect on the bearing performance lubricated with the mixture of multi-fluids, it will becompared to the performances between the mixture of each liquid to be blended and multi-grade engine oil asa single fluid in a high speed journal bearing. It is found that, in the case of lower viscosity oil, the differenceof pressure distribution between the above two cases turns out to be existed, even if the load capacity is samelevel.Keywords − mixture of fluids(유체의 혼합물), homogenous liquid(균질액), mineral base oil(광유 기유),additive liquid package(첨가제용 액체 패키지), polymer liquid for viscosity index improver(점도지수개선용 중합액체), multi-grade engine oil(다등급 엔진오일), non-newtonian fluid(비-뉴톤 유체), high speedjournal bearing(고속 저어널 베어링), thermo-hydrodynamic lubrication(열유체윤활)

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체감형 운동게임의 효과와 선호도에 대한 연구

최근 체감형 인터페이스 기술이 발달하면서 체력 향상을 위한 운동게임에 대한 관심이 높아 지고 있다. 우리는 이러한 기능성 게임이 단지 스포츠 행위의 동작 인식뿐만 아니라 특정 운동 효과를 보장해야 한다고 생각한다. 본 논문은 이러한 기능성 운동게임이 심박수와 선호도에 어떠한 영향을 미치는지 연구할 것이다. 우리는 유산소 운동을 위해 개발한 운동게임인 GalaxyBike를 이용하여 실험을 하였다. 또한, 무선 심박센서를 이용하여 피험자들의 심박수를 준비운동, 본운동, 그리고 마무리 운동단계에서 측정하였다. 게임을 완료한 후에는, 설문지를 이용하여 선호도를 조사하였다. 우리는 게임과 운동을 동시에 수행하는 기능성 운동 게임이 건강 체력향상에 대한 참여 유발과 심박수를 증가시키며 유산소 운동의 효과를 제공하는 것을 확인하였다.

엔진오일 유전상수 변화량 측정에 의한 엔진오일 품질 모니터링 시스템 개발

Dept. of Automotive Engineering, Hoseo University(Received March 15, 2011; Revised April 20, 2011; Accepted April 25, 2011)Abstract − The purpose of this study is to develop an engine oil quality monitoring system to warn the abnormalcondition of engine oil. To do this, first of all, it is needed a personal controller development to measure thecapacitance of a pre-developed engine oil deterioration detection sensor integrated with an oil filter. To measurethe capacitance of engine oil in the sensor, it is used the way measuring the electric charging time in a capacitorby impressing DC volt. This method has merits on cost and signal stability. The measured capacitance is com-pensated by comparing with the one measured by an impedance analyzer. Also, using the dielectric constantgained by an impedance analyzer, the calculating equation of the dielectric constant of engine oil related withthe currently developed sensor is decided. Then, the deterioration degree of engine oil is estimated according tothe change rate of dielectric constant between green oil and used oil. Finally, using this dielectric constant infor-mation together with engine oil temperature and pressure, the currently developed engine oil quality monitoringsystem is to tell the abnormal state of engine oil.Keywords − engine oil deterioration detection sensor(엔진오일열화감지센서), capacitance(정전용량),dielectric constant(유전상수), oil filter(오일필터)

충무공 해상대전 e-sports대회를 접목한 성웅 이순신 축제의 성공 사례

지방자치단체의 경영개념이 도입되면서 지역경제 활성화와 도시마케팅수단으로서의 지역 문화축제의 개최는 이제 각 지역마다 필수적인 수단이 되었다. 각 지자체마다 각 지역의 특성을 살린 차별화된 축제의 기획으로 단기간 최대의 효과를 얻으려고 노력하고 있다. 하지만, 많은 축제들이 비슷한 프로그램 기획으로 차이점을 보이지 않고 특성화를 꾀하지 못하고 있다. 아산시에서는 매년 4월 이순신 장군의 탄생일을 시작으로 '성웅 이순신 축제'를 개최하고 있다. 다른 축제와 차별화를 꾀하고 다양한 계층을 유입하기 위해 아산시는 호서대학교 게임공학과와 '충무공 해상대전' 온라인 게임을 만들어 이를 소재로 e-sports대회를 개최하였다. 그 결과 기존 축제와 e-sports대회의 결함이란 새로운 시도라는 평가와 함께 축제의 소외계층이었던 청소년들을 대거 축제 안으로 끌어들일 수 있었으며 축제의 다양성과 흥행에 이바지 할 수 있었다. A local festival is to be an essential element for the revival of regional economy and marketing since the management concept have introduced in the local government. Each local government is trying to achieve a maximum of efficiency at short period of time. But, most festival are each similar and common. In Asancity, it was holding the 'Great Admiral Yisunsin Festival' every year in April. It has grown into a representative historical figure festival nationally, but can't get over the limitation of historical figure festival. For differentiation from other festivals, The Asancity developed a online game in collaboration with hoseo university game engineering. The e-sports competition with this game was held, as a result, Many youths whose are a neglected class of people on the festival came in the festival and this e-sports competition has become benchmark for many local governments.

Molecular Dynamics Simulations of Prion Peptides: Effect of Glycosylation

BioChip Research Center, Hoseo University, Asan 336-795, Korea †Department of Advanced Technology Fusion, Konkuk University, Seoul 143-701, Korea. *E-mail: jeongk@konkuk.ac.kr ‡Research Institute for Ubiquitous Information Technologies and Applications (UBITA), Konkuk University, Seoul 143-701, Korea §Department of Computer Science, Kookmin University, Seoul 136-702, Korea #Department of Bioscience and Biotechnology, Center for Biotechnology Renovation in Ubita, Konkuk University, Seoul 143-701, Korea. *E-mail: shjung@konkuk.ac.kr Received November 16, 2010, Accepted December 14, 2010

Effects of Polyaniline Additive in Solvent-Free Ionic Liquid Electrolyte for Dye-Sensitized Solar Cell

Department of Green Energy & Research Center for Convergence Technology, Hoseo University, Chungnam 336-795, Korea. *E-mail: jklee@hoseo.edu Department of Advanced Technology Fusion, Konkuk University, Seoul 143-701, Korea. *E-mail: jjlee@kku.ac.kr Probiond Co. Ltd, Konkuk University, Seoul 143-701, Korea Department of Applied Chemistry, Konkuk University, Chungju 380-701, Korea Received September 4, 2010, Accepted October 20, 2010

몽골인 한국어 학습자의 처․여격 조사 사용에 대한 대조언어학적 분석 및 교육 방안 연구

The purpose of this study is to analyze Korean and Mongolian locative-dative case endings with the view of contrastive analysis, and also find pedagogical implications of teaching grammar to identical L1 background learners. For this, this paper suggested the dative-locative semantic correspondence list of two languages, showed a strong similarity between Mongolian and Korean language. The error analysis of Mongolian KFL learners` case errors also proved that there is a necessity of a specific treatment for Mongolian KFL learner based on the results of the contrastive research. It improves the effectiveness of teaching Korean for Mongolian students than general approach, and does not offer excessive input that are unnecessary. In conclusion, improved input items of Korean dative-locative education are suggested. (Hoseo University)

Schiff Base 메소젠과 Glycols 유연격자를 갖는 새로운 열방성 화합물

New Thermotropic Compounds with Schiff Base Mesogen and Glycols Flexible Spacers Bong-Keun So†, Ji-Young Song†, Soo-Min Lee†, Ok-Byung Choi, Hwan Myung Lee, Jin-Young Lee, Seong-Jo Kim, Eun-Hee Cha, Ran Hee Kim, and Joo-Hoon Park* College of Natural Science, The Research Institute for Basic Sciences, Hoseo University, Chungnam 336-795, Korea †Department of Chemistry, Hannam University, Daejeon 306-791, Korea (Received September 13, 2009; Revised November 2, 2009; Accepted December 2, 2009)