• Title/Summary/Keyword: CNS

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Estimation of Runoff Curve Number for Ungaged Watershed using SWAT Model (SWAT을 이용한 미계측 유역의 유출곡선지수 산정)

  • Lee, Jin-Won;Kim, Nam-Won;Lee, Jeong-Woo;Seo, Byung-Ha
    • Journal of The Korean Society of Agricultural Engineers
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    • v.51 no.6
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    • pp.11-16
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    • 2009
  • This study is to suggest the SWAT model as inputs for the estimation of CN (Curve number) if we do not have hourly rainfall and runoff data in the ungaged watershed. The daily CNs were estimated by using SWAT model for Chungju dam watershed and the CNs by hourly rainfall and runoff data in the same period with daily CN estimation were also estimated. Then the daily and hourly CNs were compared each other. The CNs by SWAT model were larger than the actual CNs. 7.4% larger in AMC-I, 1.2% in AMC-II, and 6.3% in AMC-III respectively. If we consider various uncertainties in the estimation of CN, the error of 6.8% could be acceptable for the application in the field.

CNS/ATM and Hman Factors Analysis (CNS/ATM과 인적요소 분석)

  • Seok, Gyeong-Tae;Lee, Ho-Chang
    • 한국항공운항학회:학술대회논문집
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    • 2015.11a
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    • pp.98-101
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    • 2015
  • 항공교통수요의 증가와 그에 따른 항공분야 발전에 따라 현재 사용하고 있는 항행안전시설들에 대하여 기술적 보완 및 업그레이드의 필요성이 대두되었다. 국제민간항공기구(ICAO)에서는 항공교통량의 증가를 수용하고, 항공 운항의 안정성과 효율성을 높이기 위해서 차세대 항행시스템(CNS/ATM)으로의 전환을 권고하였고, 각 국은 기존 항행시설의 성능과 한계를 극복하고 증가하는 항공교통량을 원활히 수용하기 위하여 차세대 항공교통관리 전략을 추진해 오고 있다. 이러한 차세대 항행시스템(CNS/ATM)의 효과적인 활용을 위해 자동화 시스템이 도입되었고 관련된 인적요소가 위성항행시스템 발전의 핵심 열쇠라고 ICAO에서 언급하였다. 본 논문에서는 차세대 CNS/ATM의 자동화에 따른 인적요소에 대하여 연구해 보았다.

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Neurite Growth Inhibitory Signals in CNS (중추신경계 신경성장 억제 신호)

  • Kim Sik-Hyun;Kwon Hyuk-Cheol
    • The Journal of Korean Physical Therapy
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    • v.11 no.3
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    • pp.133-140
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    • 1999
  • Why does the CNS not regenerate after injury? The failure of axonal regeneration in the CNS after injury is not due to an inherent inability of these neurons to regrowth axon. Recently, an inhibitory substrate effect of CNS has been discovered which could be directly invoked in the lack of regeneration. The failure of axon regrowth in the CNS is crucially influenced by the presence of neurtie growth inhibitor NI35/250 and possibly also by molecules such as myelin associated glycoprotein(MAG) and chondroitin sulphate proteoglycans(CSPGs). The application of the monoclonal antibody IN-1, which efficinetly neutralizes the N135/250 inhibitory molecules. This new finding has a strong impact on the development of, a new neuroscienctific research directed to stimulate axonal regeneration. In this review summarize the current knowledge on the factors and molecules involved in the regeneration failure.

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Research on Transportation Planning System (Transportation Planning System에 대한 연구)

  • Jeong, Jae-Hun;Lee, Sang-Min;Min, Dae-Gi;Lee, Jae-Ho;Jim, Chen
    • 한국IT서비스학회:학술대회논문집
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    • 2003.05a
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    • pp.215-221
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    • 2003
  • In today's rapidly changing business environment, quality of responsiveness to customer requirements for short order cycles and on time delivery is becoming more important and considered as one of critical success factors in supply chain management. Yet despite its importance on reducing transportation cost and improving customer service, little attention has been given to the transportation planning system in Korea SI industry. In this paper, we present development of transportation planning system especially to deal with vehicle routing problem which has the goal to minimize the costs of daily transportation operation and to maximize customer delivery service. The system architecture with other enterprise application is presented and real-world constraints are well incorporated into the system by combining constraints programming and meta heuristics.

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Development of Human Factors Evaluation System for Car Navigation System (자동차 항법장치의 인간공학 평가시스템 개발)

  • Cha, Doo-Won;Park, Peom
    • IE interfaces
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    • v.12 no.2
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    • pp.294-304
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    • 1999
  • This paper describes the theoretical background and detailed structure of Navi-HEGS (Navigation system Human factors Evaluation and Guideline System) which has been developed for the human factors and HMI(Human-Machine Interface) researches for a CNS (Car Navigation System) and a digital map. Navi-HEGS is and integrated system that consists of a digital map UIMS(User Interface Management System), a CNS simulator, various evaluation tools, and a design guideline system. If Navi-HEGS is properly applied and utilized, it is possible to extract the substantial users requirements and preferences of a CNS and a digital map and then, these requirements can be simulated and evaluated with various human factors evaluation techniques. Applications of Navi-HEGS can improve the CNS usability, drivers safety and performance that directly affect the success of ITS(Intelligent Transport System). Also, results can be used as the basic data to establish the standards and design guidelines for the driver-centered CNS design.

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A Case Study on the Enterprise application of Software Engineering's Best Practices for a new understanding of Practical Software Engineering (실용적 S/W공학 효과의 재인식을 위한 Best Practices 활용 사례연구)

  • Chang, Joo-Kwan;Park, Sang-Yeob;Choi, Jeong-Il;Kim, Ki-Jung;Park, Jai-Hyoung
    • 한국IT서비스학회:학술대회논문집
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    • 2008.05a
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    • pp.248-253
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    • 2008
  • 현재 IT서비스업체에서 주요사업으로 수행중인 S/W의 개발분야에서 S/W공학은 마치 현실과 동떨어진 이론, 지식으로만 인식되고 실제 S/W공학의 효과를 인식하고 활용하는 사례가 극히 드문 것이 현실이다. LG CNS에서는 이러한 현실에서 실용적인 S/W공학을 재정의하고 이를 현장에 적용시키기 위하여 사업수행을 통해 얻은 S/W공학 측면의 사례를 발굴하여 이를 전사적으로 확산시키는 활동을 진행하고 있다. 본 논문에서는 IT서비스의 전사적 측면에서 실용적인 S/W공학의 효과성을 재인식시키기 위한 방법론 측면의 접근사례를 소개한다.

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Pediatric Central Nervous System Vascular Malformation : Pathological Review with Diagram

  • Se Hoon Kim
    • Journal of Korean Neurosurgical Society
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    • v.67 no.3
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    • pp.265-269
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    • 2024
  • Pediatric central nervous system (CNS) vascular malformations are a group of abnormal blood vessel formations within the brain or spinal cord in children. The most crucial point of pediatric CNS vascular malformation is that no golden standard classifications exist. In addition, there is a big gap in knowledge and the viewpoint of clinicians, radiologists, and pathologists. In addition, many genes associated with pediatric CNS vascular malformation, such as Sturge-Weber-Dimitri syndrome with guanine nucleotide-binding protein G(q) subunit alpha (GNAQ) gene mutation, and cavernous malformations with cerebral cavernous malformations 1 (CCM1), CCM2, and CCM3 gene mutation, were recently revealed. For proper therapeutic approaches, we must understand the lesions' characterizations in anatomical, morphological, and functional views. In this review, the author would like to provide basic pediatric CNS vascular malformation concepts with understandable diagrams. Thus, the author hopes that it might be helpful for the proper diagnosis and treatment of CNS pediatric vascular malformations.

The Analysis of strengthening IT service performance through ALP(Active learning program) of LG CNS (ALP(Active learning program) 과정을 통한 LG CNS의 IT서비스 역량강화 사례)

  • Kang, Cheong-Woon;Park, Jai-Hyoung;Kim, Heung-Soo;Jang, Byeong-Kug;Won, Yong-Chun
    • 한국IT서비스학회:학술대회논문집
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    • 2009.11a
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    • pp.225-233
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    • 2009
  • 날이 갈수록 치열해지는 글로벌 경쟁 환경하에서 살아남기 위해 많은 기업들은 조직 구성원들의 역량 강화를 통한 기업의 경쟁력 강화를 위하여 다양한 활동들을 하고 있으며, 이러한 활동중 하나로 액션러닝을 많은 기업들이 채택하여 활용하고 있다. 그러나 액션러닝 과정은 경영층과 팀 리더 차원에서의 적극적인 지원 및 관심뿐만 아니라 참여하는 구성원들도 적극성을 갖고 수행되어야 역량 향상을 기대할 수 있다. 또한 기업의 문화 및 제도 역시 액션러닝이 원활하게 진행될 수 있도록 뒷받침되어야만 성공할 수 있다. 본 연구에서는 LG CNS에 도입하여 성공적으로 운영하고 있는 액션러닝의 역량강화 사례를 살펴보고 그 효과성을 분석해 봄으로서 글로벌 경쟁에서 살아남고 더 나아가 글로벌 IT서비스 기업과 대등한 수준에서 경쟁하기 위해 역량 강화를 원하는 여러 IT서비스 업체들에게 역량 향상을 위한 하나의 방향성을 제시하고자 한다.

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Analysis of GPS Signal Environment for GBAS siting in Gimpo International Airport (GBAS 지상시스템 설치후보지 선정을 위한 김포국제공항의 GPS 신호환경 분석)

  • Jeong, Myeong-Sook;Choi, Chul Hee;Ko, Wan-Jin;Ko, Youri;Bae, Joongwon;Jun, Hyang-Sig;Kim, Dong-Min
    • Journal of the Korean Society for Aeronautical & Space Sciences
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    • v.41 no.1
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    • pp.70-78
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    • 2013
  • Before GBAS ground systems is installed at the airport, the site survey is needed to determine the suitability of proposed GBAS candidate sites depending on the siting requirements. Therefore, analysis of GPS signal reception environment, one of the site survey steps, is required. In this paper, the number of visible satellites, GPS signal strength, multipath error, radio frequency interference and predicted availability were analyzed using the GPS data of Gimpo International Airport measured by PortaSAT equipments and the analysis results were represented.

A Survey on Nursee' Needs for ICU Clinical Nurse Specialists (중환자 전문간호사제도에 관한 요구조사)

  • Yoon, Sook-Hee
    • Journal of Korean Academy of Nursing Administration
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    • v.5 no.3
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    • pp.535-545
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    • 1999
  • The purpose of this study is to investigate the nurses' needs in the general hospitals as a basic study to develop ICU clinical nurse from Aug. 3 to Sept. 26 1998 at 13 general or university hospitals that have ICU nurse training course and are accredited at KNA. The subjects of study were ICU nurses and nurse managers at the department of nursing. The questionnaire items were developed from literature review, interviews with 30 ICU nurses at an university hospital in Pusan. The results were as follows : The subjects of study educated in ICU nurse training course were 44.3% of total. The 93.1% responded the necessity of ICU CNS and 89.1% wanted to have ICU CNS certification. The 43.8% answered that ICU should be a center of CNS education and 32.0% answered the department of nursing. Most of subjects responded that the clinical experience of ICU should be needed prior to CNS education. Regarding the treatment of ICU CNS, the 34.2% of total subjects responded it would be suitable to pay additional allowance and the 28.3% answered to grade-up salary step, and then the 13.7% to promote level position. Concerning the assignment department, the 63.5% answered that the charge nurse would be proper than general nurse or head nurse. As to the working time of ICU CNS, the 93.2% responded that D-duty is needed, the 79.5% to E-duty and the 64.4% to N-duty. It is suggested that the consensus of ICU nurses for the concept, the role and the system of ICU CNS is needed.

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