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A study about modeling methode of practice works -Focus on compare RP with manual processing, CNC- (실습과제 모형제작 방법에 관한 연구 -RP와 수동형, CNC 모형제작 방법 비교를 중심으로-)

  • Shin, Myung-Chul
    • Archives of design research
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    • v.18 no.1 s.59
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    • pp.223-232
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    • 2005
  • By supply of high performance computer becomes all industries automation and convenient of our life. Can speak that is pursuit of swiftness and variety that is prior most development of information society and production system in competitive industrial design product development process. Specially, students who consumer personality studies design according to variableness must present idea in a short time. Therefore, find a new tool that can show quick modeling result for present of new idea or fast design specifications examination and production at college or corporation now. According to such environment change did request by cost time and cost-cutting until reach in production from product design because competition is gone vigorously. University arrived to think RP induction by result presentation and so on for third dimension model by various design process. This research purpose is going to compare difference methods(Manual processing, CNC machine) with students' design result manufacture process on RP appliance that is using in college. Consequently, think that this study is helpful in the college of which is making use of RP appliance or planning installation. By result of this research, model of big curved line is profitable in hand process, by CNC Is profitable when model is going to manufacture finely, RP work could know that size of product is profitable small thing as is complicated.

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Evaluation of Membrane Damage Sensitivity by Defect Types for Improving Reliability of Membrane Integrity Monitoring (막 완결성 모니터링 신뢰성 향상을 위한 손상 유형별 막 손상 감도 평가)

  • Lee, Yong-Soo;Kang, Ha-Young;Kim, Hyung-Soo;Kim, Jong-Oh
    • Membrane Journal
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    • v.27 no.3
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    • pp.248-254
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    • 2017
  • In order to secure the reliability of pathogenic microorganisms such as Cryptosporidium and Giaridia, which are chlorophilic protozoans, membrane filtration systems have been widely used in water purification process. hese integrity tests are classified into direct and indirect methods. Based on the bubble point theory, the pressure-based test in the direct method is presented in the USEPA Guidance Manual with sensitivity to detect a minimum size of pathogenic microorganisms of $3{\mu}m$ or more. Indirect methods are widely used in that they are capable of continuous operation in on-line state, but there is a very low sensitivity of damage detection compared to the direct method, and there is a limit that can not specify the damage area, so it is necessary to improve this sensitivity. In this study, we compared the LRVDIT and UCL values according to the type of membrane defect, number of fiber breaks, and initial set pressure value through the Integrity Test by Pressure Decay Test (PDT).

A Study on Takeoff Decision Speed Improvement of Air Transport Airplane (운송용항공기의 이륙단념속도 개선에 관한 연구)

  • Noh, Kun-Doo;Choi, Youn-Chul;Yoo, Kwang-Eui
    • Journal of Korean Society of Transportation
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    • v.23 no.4 s.82
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    • pp.7-16
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    • 2005
  • Rejected Takeoff Accidents are not common. but if occurred, it leads to big disaster From the year of 1959, when Jet Transport service opened, to the year of 2000, Rejected Takeoff accidents/incidents occurred total of 94 cases. All cases led to overrun, and major cause is to initiate stopping maneuvers over $V_1$, takeoff decision speed, according to National Transport Safety Board of America. Similar results are represented in Aviation Safety Reporting System of National Aeronautics and Space Administration. So I believe that it is worth studying if Airplane Flight Manual, which is the reference Performance criteria, is appropriate to operations of line pilots. The definition of $V_1$ has been revised a couple of times and Rejected Takeoff Certification Standards for Transport Airplanes was changed in 1998. It shows that up to now there are some portions unreasonable. This study focused on gathering the pilot's tendency for current Rejected Takeoff Procedures of K airlines and analyze the factors they concern. I chose B777 airplane and actually measured the recognition and reaction time of the rejected takeoff transitions through Simulators. And compared the results with the data of flight test and Airplane Flight Manual.

Evaluation of Transit Services based on Transit Smart Card Data (스마트카드 데이터를 활용한 대중교통 서비스 평가)

  • Choi, Myoung-Hun;Eom, Jin-Ki;Lee, Jun;Park, Jong-Hun
    • Proceedings of the KSR Conference
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    • 2011.05a
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    • pp.1811-1825
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    • 2011
  • This study analyzed the transit services with respect to transit service measures such as the load factor representing number of passengers between stops, dwelling time, and operational speed based on transit smart card data recorded in 2009. A case study on the local bus line 7024 connecting Seoul railway station to evaluate bus services at passenger perspectives was accomplished. From the results, we found that the dwelling time was not affected by the number of passengers which is because the tagging patterns are different among passengers. The operational speed was analyzed by calculating the average speed of the bus route and the speed of each bus stops based on dwelling time. Interestingly, calculating operation speed based on the transit smart card data is the first time effort ever made and this means that it is not necessary to observe travel speed of bus and railway at a field level any more. we hope that this study will be a basis of evaluation of transit services purely based on the transit smart card data and help to make better transit services for passengers and operators as well.

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A Study on the Korean medicine Clinical Use of Moire topography in musculoskeletal diseases (근골격계 질환에 대한 경근무늬측정검사(모아레)의 한의약적 임상응용 고찰)

  • Ryu, Hongsun;Song, Aejin;Chong, Myongsoo
    • Journal of Society of Preventive Korean Medicine
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    • v.20 no.1
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    • pp.75-87
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    • 2016
  • Objectives : This study aims to classify and analyze literature related to moire topography, as a diagnostic device of Korean medicine, discuss research trends and major results, and demonstrate the value of moire topography. Methods : To investigate moire topography research trends, Korean keywords that signify 'moire' were searched in a Korean journal search engine. Initially, 2,988 papers were found in the research, and, after classifying them and removing those that are duplicate in other databases, only 37 papers were applicable for the literature review in this study. To analyze research trends, the 37 papers were analyzed based on the publication year, research field, journal, and research type, and, clinical articles were classified based on the diagnosis purpose, subject characteristics, diagnosis method, test method, and test result, for analysis. Results : Moire topography research in South Korea was first conducted in 1995 and most active in 2003, mostly in the field of Korean medicine. In the journal analysis, The Journal of Korea CHUNA Manual Medicine for Spine & Nerves published the highest number of papers, most of which were clinical articles and the rest were literature review. And, in the analysis of clinical papers, based on the diagnosis purpose, muscle somatotype measurement was most common, followed by diagnosis of scoliosis. In terms of subjects, most studies focused on elementary, middle, and high school students, and, in terms of the diagnosis method, other tests were used in most studies. The analysis of moire topography methods showed that most studies measured the shoulder, back, and hip, and the most common measurement method in the studies measured the difference in contour lines on the left and right by designating a central line of the body. In terms of the result, most moire topography brought about significant diagnosis results, and many studies demonstrated its use for musculoskeletal diseases in particular. Conclusions : Moire topography is believed to be highly significant for diagnosis and treatment of musculoskeletal diseases and further research will be needed to support it.

Scale and Structure of Pharmaceutical Expenditure for the year 2006 in Korea (우리나라 2006년 약제비의 규모 및 구성)

  • Jeong, Hyoung-Sun;Lee, Jun-Hyup
    • Health Policy and Management
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    • v.18 no.3
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    • pp.110-127
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    • 2008
  • Expenditures on pharmaceuticals of different concepts were estimated and their functional, financing and providers' breakdowns were examined in line with the OECD's System of Health Accounts (SHA) manual. This study also shows the way such estimates are made. The results are then analyzed particularly from the international perspective. Data from both Household Survey by the National Statistical Office and the National Health and Nutritional Survey by the Ministry of Health and Welfare of Korea were used to estimate pharmaceutical expenditures that. are financed by out-of-pocket payments of the household, while national health insurance data etc. were used for estimation of pharmaceutical expenditures that are financed by public funding sources. The 'per capita expenditure on pharmaceutical/medical non-durables' in Korea stood at 380 US$ PPPs, less than the OECD average of 443 US$ PPPs in 2006, but its share of the per capita health expenditure of 25.9% noticeably outnumbered the OECD average of 17.1%, due partly to low per capita health expenditure as a denominator of the ratio. This indicates that Koreans tend to spend less on health care than an OECD average, while tending to spend more on pharmaceuticals than on other health care services, much like the pattern found in relatively low income countries. An international pharmaceuticals pricing mechanism is most likely responsible for such a tendency. In addition, it is to be noted that the percentage comes down to 21.0%, when expenditures on both medical non-durables and herbal medicine, which is locally quite popular among the elderly, have been excluded.

A Real Time Monitoring for Water Quality of River (수질자동모니터링시스템의 설치 현황과 전망)

  • Ryu, Jae-Kuen
    • Journal of Korean Society on Water Environment
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    • v.20 no.1
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    • pp.1-11
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    • 2004
  • Water quality is monitored at 1,837 points which are streams and sources for water supply in Karea. The monitoring carry out the measurement of 16 parameters of pH, BOD, SS, DO and so on with once a month, and of other parameters such like heavy metal with once a quarter. But most of the monitoring is carried out uncontinuously, so it is very difficult to understand exactly the changes of water quality compared with continuous monitoring. Therefore, real time monitoring system was equipped with basic parameters such as pH, temperature, DO, turbidity and electric conductivity at 25 major sources of water supply after installation of Noryangjin and Dukdo in 1974. But the systems have some problems which cannot be considered the sampling sites to represent for water quality of stream of lake, and can be caused a change of water quality by long distance from analyzer to intake pipe. Therefore, it has carefully to evaluate selection of sample sites for real time monitoring system. Also, problems on the area has been to identify which parameters are best suited to monitoring stream of lake water and the differences, of analyzing results compared with manual analyzing. This paper presents some approaches to handle such problems, namely selection of sampling site and measurable parameters, to connect with bio-monitoring system solving a Limitation of measurable parameters, The bio-monitoring system of an early alarm that is desirable to perceive a toxic material inflow into stream can be applied to continuos water quality monitoring system effectively. Also, this paper presents to build a on line system transmitting immediately from a mobile analyzer house or container to main monitoring center the results of analyzer by a telemeter.

A Study on the Design of Archival Description Elements for Sexual Minorities Archives: Focus on the Korean Queer Archives "Queerarch" (성적 소수자 기록물 기술요소 설계에 관한 연구 - 한국 퀴어 아카이브 '퀴어락(Queerarch)'을 중심으로 -)

  • Choi, Min-Hui;Park, Ji-Yeong;Oh, Hyo-Jung;Kim, Yong
    • Journal of Korean Society of Archives and Records Management
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    • v.16 no.2
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    • pp.113-142
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    • 2016
  • With the increase in private and community archives to record various different shapes and forms of societies, the establishment of archives for social minorities has heightened. In line with these changes, this study analyzed the Korean queer archives "Queerarch," which focus on records and archives on sexual minorities. This study examined the current status of the archives of Queerarch, and grasped the characteristics of the queer archives and the problems of archival description elements. The current archival description elements used in Queerarch do not fully reflect the characteristics of the queer archives and the multilayer description method. To solve these problems, this study proposed a metadata schema that includes archival description elements that are based on archival description standards such as the General International Standard Archival Description (ISAD (G)), Manual of Archival Description (MAD), Rules for Archival Description (RAD), and others.

A study on method of setting up the defense integrated security system (군 통합보안시스템 구축 방안 연구)

  • Jang, Worl-Su;Choi, Jung-Young;Lim, Jong-In
    • Journal of the Korea Institute of Information Security & Cryptology
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    • v.22 no.3
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    • pp.575-584
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    • 2012
  • A established military security tast based on existing manual and off-line needs the change and development to support effective and systematic task performance according to environment change of informational and scientific project in the military. Therefore this study suggests to set up the standard model of the defense integrated security system to automate and informationize major defense security task based on actual and problem in the area of major defense of security task and case analysis of these in America, England and other countries. The standard model consist of unit systems were made up integrated security system, security management system, man entrance system, vehicle entrance system, high-tech guard system, terror prevention system and the security accident analysis system, and this suggested model based on possible technology and system. If this model is apply to each real military unit, we will expect the development of defense security.

A Study on the Analysis Technique of Sequence Landscaping through the Application and Development of Visual Amount Calculation Program of Landscapes (경관의 시각량 산출 프로그램 개발과 적용을 통한 연속경관 시퀀스 분석기법 연구)

  • Koo, Min-Ah
    • Journal of the Korean Institute of Landscape Architecture
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    • v.44 no.5
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    • pp.12-25
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    • 2016
  • In this study, in order to facilitate analysis in a continuous sequence, including the concept of the landscape experience time, countless frames of a continuous landscape were extracted. The amount of visual elements in each frame was data-converted numerically to take advantage of the quantitative data necessary for landscape planning and design was calculated in the rhythm of the sequence. In Order to shoot video with the flow of the line of sight of experience in landscape districts and landscape control points along the landscape corridor which is a continuous path, each of the corresponding computer motion techniques. This study developed a CRVP Koo computer program to effectively calculate the continuous visual number of specific landscape components by extracting uncounted frames at regular intervals, and after verifying, attempting to apply this to the target site. Through the applied result, it was possible to extract the digitized quantitative rhythm for each component of each landscape, the margin of error is very small when compared with the results of manual in photoshop, it was able to overcome the drawbacks of the manual. Using the rhythm of the derived sequence, and those close to the experience of the landscape, it was possible to achieve quantitative analysis derived from a variety of perspectives as well as was possible to be used as quantitative basis data and analysis technique for landscape planning and design.