• Title/Summary/Keyword: 종유관

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Tibio-talo-calcaneal Arthrodesis with Multiple Cannulated Screw Fixation (다발성 유관나사를 이용한 경골-거골-종골간 관절 유합술)

  • Jung, Hong-Geun;Park, Shin-Hyung;Yoo, Hyun-Yul;Yoo, Moon-Jib
    • Journal of Korean Foot and Ankle Society
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    • v.12 no.1
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    • pp.66-73
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    • 2008
  • Purpose: To report the clinical results of tibio-talo-calcaneal arthrodesis fixed with multiple cannulated screws for the cases of painful ankle and hindfoot arthropathy regardless of any deformity or instability. Materials and Methods: A retrospective analysis was performed upon 10 patients that underwent tibio-talo-calcaneal arthrodesis from October 1999 to May 2006. There were 4 males and 6 females, with an average age of 63 years (43-70). The etioloty of arthrodesis included 5 osteoarthritis, 2 Charcot joints, 1 rheumatoid arthritis, 1 Tbc arthritis and 1 residual poliomyelitis. Chief complaints were pain in 9 cases and instability in 1 case. Three patients had combined severe varus deformity. Tibio-talo-calcaneal arthrodesis using multiple cannulated screws was performed by transfibular approach for all cases and short leg cast was applied for 12 weeks postoperatively. Results: The average follow-up period was 16.5 months (12-26 months). VAS pain score was average 8.2 (7-10) and modified AOFAS score was average 25 (8-40, total 86) preoperatively. At final follow-up, VAS score was average 1.0 (0-3) and AOFAS score improved to average 66 (58-75). There were 4 complications: 2 nonunion, 1 tibia stress fracture and 1 malunion. Seven of 8 patients were satisfied with the results at final follow-up. Conclusion: Fixation with multiple cannulated screws for tibio-talo-calcaneal arthrodesis through transfibular approach is a recommendable surgical option.

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Unmanned Water Treatment System Based on Five Senses Technology to Cope with Overloading of Customized Smart Water Grid Machines (스마트워터그리드 맞춤형 기계과부하시 오감기술을 이용한 무인 수처리 시스템에 관한 연구)

  • Kim, Jae-Yeol;You, Kwan-Jong;Jung, Yoon-Soo;Ahn, Tae-Hyoung;Lee, Hak-Jae
    • Journal of the Korean Society of Manufacturing Process Engineers
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    • v.16 no.2
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    • pp.69-80
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    • 2017
  • In or To use, manage, and preserve sustainable water resources for the current and future generations amid the threat of abnormal climate, it is necessary to establish a smart water grid system, the next-generation intelligent water management system. In this study, sensors, which make use of the five senses to watch, listen, and detect machine vibration, bearing temperature, machine operation sounds, current, voltage, and other symptoms that cannot be verified when the irrigation facilities are running, are used to establish various decision-making criteria appropriate to on-site situations. Based on such criteria, the unmanned conditions in the facilities were verified and analyzed. Existing technologies require on-site workers to check any defects caused by overloading of machines, which is the biggest constraining factor in the application of an unmanned control system for irrigation facilities. The new technology proposed in this study, on the other hand, allows for the unmanned analysis of the existence of machine vibration. This controls the decision-making process of any defect based on the analysis results, and necessary measures are taken automatically, resulting in improved reliability of the unmanned automation.

A Case study on the Utilization of Emulation Based Network Testbeds (에뮬레이션 기반 테스트베드 활용 사례 연구)

  • Lee, Minsun;Yoo, Kwan-Jong
    • Journal of the Korea Convergence Society
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    • v.9 no.9
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    • pp.61-67
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    • 2018
  • Emulab software was developed by the team of University of Utah and it has been replicated at dozens of other sites in the world. Although KREONET Emulab, which established by the Korea Institute of Science and Technology Information, has only a modest number of compute nodes it has been provided an ideal playground to conduct various research for network protocols, cyber security and convergence research. A testbed is a critical enabler of experimental research and researchers only carry out the experiments that are supported by the testbed. This paper outlines the Utah Emulab's status and use types among the last 10 years of operation results and compares them with the ones with the KREONET Emulab. In addition, Testbed-as-a-Service(TaaS) is discussed to upgrade the testbed for the convergence research community services.

Total Ordering Algorithm over Reliable Multicast Protocol using Token Passing Mechanism (멀티캐스트 프로토콜상에서 토큰 전달 방법을 이용한 전체 순서화 알고리즘)

  • Won, Yu-Jae;Yu, Gwan-Jong
    • The Transactions of the Korea Information Processing Society
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    • v.6 no.8
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    • pp.2158-2170
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    • 1999
  • It has been required more reliable communication on processes and improvement of system performance as distributed systems using multicast protocol became widespread. In distributed environment maintaining data consistency through asynchronous execution of processes and coordinating the activities of them would occurs. This paper proposes a total ordering algorithm, TORMP, in order to resolve these problems. TORMP takes advantage of multicast protocol and uses an effective token passing method. It reduces a process delaying time before transmitting its message by multicasting a token simultaneously to every process that initiates the request of the message. Moreover, the processes receiving the token start multicasting the message at the same time, which causes to cut down the overall transmission dely. In case that one process sends a message, TORMP hardly uses the procedure of controlling for ordering. It gives fairly the right of sending messages to all processes in a group with utilizing vector clock. In TORMP, unlike other algorithms, the number of packets generated during ordering process does not depend on the number of processes.

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Detection of Biological Activities of Wild Mushroom Methanol Extracts (야생버섯 메탄올추출물의 생리활성 검색)

  • Kim, Jun-Ho;Yoo, Kwan-Hee;Kim, Yang-Sup;Seok, Soon-Ja
    • The Korean Journal of Mycology
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    • v.40 no.4
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    • pp.296-298
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    • 2012
  • In this study, the biological activities of 33 kinds of wild mushroom methanol extracts were investigated. Boletellus elatus showed the greatest fibrinolytic activity (1.08 plasmin units/mL) in a fibrin plate assay, and the activity of Heterobasidion insulasis was 0.89 plasmin units. The thrombin inhibitory activities of Boletellus elatus and Heterobasidion insulasis were 93.32% and 93.69%, respectively. In a ${\alpha}$-glucosidase inhibitory activity test, Laccaria amethystina showed the greatest inhibitory activity at 81.25%. The antioxidative activities of Gomphus sp. and Geastrum lageniforme were 91.37% and 90.42%, respectively. Since Boletellus elatus and Heterobasidion insulasis have strong fibrinolytic and thrombin inhibitory and antioxidative activities, the two mushrooms can be used as material for the development of biofunctional foods for cardiovascular diseases.

An Efficient Scheme of Encapsulation Method to Avoid Fragmentation Degradation During TVA Metadata Delivery (TVA 메타데이터 전송과정에서 단편화에 의한 성능 감소를 회피하기 위한 효율적인 캡슐화 방식)

  • Oh, Bong-Jin;Park, Jong-Youl;Kim, Sang-Hyung;Yoo, Kwan-Jong
    • The Journal of Korean Institute of Communications and Information Sciences
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    • v.37 no.7C
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    • pp.627-636
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    • 2012
  • Recently, XML is used to describe details of service and contents for various fields such as IPTV and digital broadcast services because of it's high readability and extensibility. TV-Anytime's schema and delivery protocol have been especially adopted as basic standards for them, and extended to include their own private functions. However, XML describes documents using text-based method, and this causes to create big documents rather than traditional methods. Therefore, many encoding algorithms have been proposed to reduce XML documents like EXI, BiM, GZIP and fast-info set etc. Although these algorithms shows efficient compression effects for XML documents, but they can't avoid fragmentation degradation during encapsulation steep. This paper proposes an efficient encapsulation scheme of TV-Anytime to avoid fragmentation degradation of encoding effect using common string tables.

Earthquake and Geophysical Observatory Network by Korea Meteorological Administration and Future Plan (기상청 지진 및 지구물리 관측망 구축 현황과 향후 계획)

  • Ryoo, Yong-Gyu;Lee, Se-Jong;Yu, Myeong-Son
    • 한국지구물리탐사학회:학술대회논문집
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    • 2008.10a
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    • pp.7-11
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    • 2008
  • 기상청은 2008년 현재 전국에 107개의 디지털 지진관측망을 운영하고 있다. 또한 지진관측 유관기관인 한국지질자원연구원, 한국원자력안전기술원, 한전전력연구원에서 각 기관의 목적에 맞게 지진관측소를 운영하고 있으며, 이들 지진관측자료의 공유를 목적으로 실시간으로 통합하는 통합지진과측망(KISS)을 2000년에 구축하여 지진분석에 쓰이고 있다. 한반도의 지진발생 현황은 1978년부터 2007년까지 776회로 약 26회/년 정도가 발생하였다. 최근 중국의 쓰촨성과 일본 이와테 지진으로 지진 및 지진예지에 대한 국민적 관심이 대두되고 있다. 한반도에서도 큰 규모의 지진이 발생할 가능성에 대비해 기상청에서는 지진관측망과 지진예지 목적의 지구물리관측망을 구축 중에 있다. 지구물리관측망은 INTERMAGNET에서 등록할 수 있는 수준의 관측소를 목표로 인위적인 자기장의 교란이 적은 지질학적인 요소들을 고려한 후보지 선정을 위하여 지구자기업무에 관한 기획연구(서만철 2007)를 수행 하였다. 그 결과 국가 중심 지구자기관측소의 위치는 충남 공주시와 청양군 사이에 있는 칠갑산 지역이 가장 좋은 후보지라고 제안하여 청양지역을 주변으로 국유림 및 군유지를 조사하여 충남 청양군 장평면 화산리 산 36-2번지에 후보지를 선정하여 최적의 입지 조건을 검증하기 위해 인천교육대학교의 이휘순 교수 MT탐사를 수행 주변의 배경잡음을 측정하여 양호한 조건을 갖춘 것으로 확인되었다. 지구자기관측소에는 Fluxgate Magnetometer 1대, Total field Magnetometer 1대, Theodolite 1대, SP(Self Potential) Monitoring system 1대와 장비들을 보호 할 수 있는 관측소가 설치될 예정이다

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Formation of Coating Film on Rice Surface during Cooking and Artificial Coating Method with Glutinous Rice Powder (밥짓기 과정중 피막(皮膜) 형성(形成) 형상(現象)과 찹쌀분(粉) 첨가(添加)에 의한 피막층(皮膜層)의 보강(補强))

  • Lee, Seung-Ju;Chun, Jae-Kun
    • Applied Biological Chemistry
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    • v.29 no.3
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    • pp.241-247
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    • 1986
  • The relationship between rice and the fluid during cooking was investigated to examine the factors affecting the quality of cooked rice and a new rice cooking method was proposed to improve the unpalatability of aged Milyang 23-long grain rice variety. The changes of heights of rice-bed and the fluid during cooking were measured with a laboratory cooking apparatus made of flat bottomed graduated glass cylinder. Around the boiling, a sudden disappearance of the fluid was observed and then thin film was formed on the rice grains. This film coating was fortified by the addition of 1-2%(w/w) of glutinous rice powder as a film forming agent. The artificial coating on the cooked rice of low quality remarkably improved the gloss, moisture content and shape and the extent of leaching of rice solid into the fluid was reduced with the treatment.

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A Multimedia Presentation Model Based On PST (PST를 기반으로 하는 멀티미디어 프리젠테이션 모델)

  • Choi, Hae-Gill;Choi, Sook-Young;Yoo, Kwan-Jong
    • The Transactions of the Korea Information Processing Society
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    • v.5 no.12
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    • pp.3063-3076
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    • 1998
  • To facilitate presentations of various media and transfer their implicit meaning efficiently, needed are effective development techniques for representing and manipulation temporal and spatial informations between multimedia data. Especially, these emporal and spatial informationsl are so deeply related with each other that it is required to have the integrated mehod for their representation. This paper suggests the Presentation Synchronization Trdd(PST) which represents their temporal and spatial informationsl and the efficient presentation model as traversing this PST. In this model, without knowing the specific user's interface or any script languages, the user can write the presentation scenario only based on allen's tecporal specification. This model has a characteristic of allowing user's inputs that may dynamically modify the presentation sequence in presentation time. As through the renmining steps of consistency checking for their relations. PST generation, and PST traversing step, this model provides users with simple and effective presentation of multimedial data by having them be presented auton\matically.

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A Proposal on the New Genotyping of Sacbrood viruses for the Definition of korean Sacbrood Virus (kSBV) (한국형 낭충봉아부패병 바이러스(kSBV)의 정의를 위한 새로운 SBV 유전자형의 제안)

  • Lee, Chil-Woo;Yoo, Mi-Sun;Lim, Su-Jin;Kim, Jung-Min;Cho, Yun Sang;Yoon, Byoung-Su
    • Journal of Apiculture
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    • v.32 no.2
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    • pp.89-97
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    • 2017
  • korean Sacbrood Virus (kSBV) was firstly found since 2008 in Korea, and it might be a main reason why 99% of populations belonged to Apis cerana in Korea were disappeared now. In this study, full length, reported DNA sequences of 32 Sacbrood Viruses (SBVs) were analysed based on alignments using nucleotides and/or deduced amino acid sequeces. In this analysis, variable deletions were found that are located around 2,100 bases in each CDS of SBVs. The genotyping depended on these deletions might be related with infection-patterns by these pathogens. In addition, it is not escaped our notice that the genotyping we have proposed immediately suggests a possible origin of kSBV for the quarantine and protection against further invasion.