• Title/Summary/Keyword: Self-healing system

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Inference of System Resource States Using Bayesian Network for Self-Optimizing and Self-Healing Component-based Middleware (컴포넌트 기반 미들웨어 자기최적화와 자가치료을 위한 베이지안 네트워크를 사용한 시스템 자원 상태 추론)

  • Choi Bo-Yoon;Kim Kyung-Joong;Cho Sung-Bae
    • Proceedings of the Korean Information Science Society Conference
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    • 2005.11a
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    • pp.829-831
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    • 2005
  • 최근 컴포넌트 기반 미들웨어의 최적화에 대한 연구가 활발히 이루어지고 있다. CPU점유율이 높은 어플리케이션의 동시 실행은 시스템에 부하를 주기 때문에, 시스템 성능을 약화시키고 실행중인 어플리케이션에 영향을 준다. 컴포넌트 기반 미들웨어는 여러 개의 재사용 가능한 컴포넌트를 조합하여 어플리케이션을 구성하기 때문에 동적으로 재구성이 가능하다. 본 논문은 컴포넌트 기반 미들웨어가 시스템 상황에 대한 정보를 받아들여 시스템의 상황을 스스로 판단하고 자가치료 또는 시스템의 성능을 최적화시키는 컴포넌트를 선택하는 방법을 제안한다. 상황판단을 위해 유연한 추론이 가능하고, 데이터로부터 자동학습이 가능한 베이지안 네트워크를 사용하였다. 두 시간 가량의 데이터를 리눅스 사용자로부터 획득하여 실험한 결과, 테스트 데이터에 대해 $76.5\%$의 성능을 보였다.

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Application and Prospective of Aroma Therapy for Preservation of Health(養生) (양생(養生)을 위한 향기치료(香氣治療)의 한의학적 적용(適用)과 전망(展望))

  • Lyu, Young-Su;Ko, Ki-Wan
    • The Journal of Internal Korean Medicine
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    • v.19 no.1
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    • pp.505-523
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    • 1998
  • Aroma therpay in the western classical medicine is compared with the mechanistic paradigm of Newton physics which is the foundation of western modern medicine. It is the therapy whose basic principle is very similar to the basic concepts of oriental medicine lasting thousands of years. We know that parts of their therapies are explained by Yin-Yan and five elements in Oriental Medicine. In the modern western medicine, as preventive medicine is becoming more and more important and moreover, health promotion and self healing care is being emphasized, Maintenanayce which is the oriental preventive medicine, acts in concert with the concept of New Age of Science and provides a way for the Oriental Medicine of the future. The health promotion and self healing care is similar to the thought of Maintenanayce in Oriental Medicine. Oriental Medicine has provided the concept of preventive ehaling care for a long time and built the foundation of the department of Maintenanayce. Among these method of Preservation of Health, We could find that of using fragrance throuth the several references. By comparing the department of Maintenanayce in oriental preventive medicine with the books and papers about aroma therapy, used in the fields of naturalpathy medicine, alternative medicine, and complementary medicine in the west, and by analyzing them, centering around references, to see whether they are reasonable and corresponding, the following conclusions have been reached. 1. We could see that aroma therapy of oriental preventive medicine could be applied to the fields of health promotion and self healing cure, recently appearing in the world of health medicine, as a modern way of Preservation of Health(養生). 2. We could see that western traditional aroma therapy take important position in alternative medicine and complementary medicine, and it could be developed as the transitional field of medical cure for the interchange between western and eastern medicine. 3. We could see that aroma therapy is not totally unknown therapy and there is some points of similarity in the traditional references of oriental medicine. Also, it is considered that the aroma therapy has a possibility of coming the front as an general therapy among various therapies. 4. aroma therapy will be actively applied to many fields such as oriental psychiatry, internal medicine of the respiratory system, pediatrics, oriental nursing, oriental dermatologic beauty, and preventive medicine. Therefore, we have a view that the combination between aroma therapy and oriental medicine will be fairly valuable to study as the general and transtional middle step on which it will prepare the situation of oriental medicine's reimportation from the west and we establish a bridgehead to export the oriental medicine.

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Successful nonsurgical treatment of type II dens invaginatus with 5 root canals using a self-adjusting file: a case report

  • George Taccio de Miranda Candeiro;Antonio Sergio Teixeira de Menezes;Ana Carolina Saldanha de Oliveira;Flavio Rodrigues Ferreira Alves
    • Restorative Dentistry and Endodontics
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    • v.48 no.2
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    • pp.17.1-17.8
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    • 2023
  • The present report describes the endodontic treatment of an Oehlers type II dens invaginatus in a maxillary lateral incisor with 5 root canals, an extremely rare condition. Apical periodontitis and related symptoms were noted. Cone-beam computed tomography was used to aid the diagnosis, reveal tooth morphology, and assist in canal location. The pulp chamber was carefully accessed, and the root canals were explored under magnification. All root canals were prepared with an R25 Reciproc Blue system and sodium hypochlorite (NaOCl) irrigation. After initial preparation, a self-adjusting file (SAF) with NaOCl and ethylenediaminetetraacetic acid was used to complement the disinfection. Additionally, calcium hydroxide medication was applied. Vertical compaction was used to fill the canals with a calcium silicate-based endodontic sealer and gutta-percha. After 12 months, the patient exhibited healing of the periapical region, absence of symptoms, and normal dental function. In conclusion, this nonsurgical treatment protocol was successful in promoting the cure of apical periodontitis. Both complementary disinfection with an SAF and use of calcium hydroxide medication should be considered when choosing the best treatment approach for dens invaginatus with very complex anatomy.

A Method of Dependability Improvement for an Intrusion Tolerance System (침입감내시스템의 신인도 향상 방안)

  • Park, Bum-Joo;Park, Kie-Jin;Kim, Sung-Soo
    • Proceedings of the Korea Information Processing Society Conference
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    • 2005.05a
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    • pp.971-974
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    • 2005
  • 네트워크 기반 컴퓨터 시스템이 내/외부 침입에 의해 시스템 일부가 손상(Partially Compromised) 되더라도, 최소한의 필수 서비스를 지속적으로 제공할 수 있게 해주는 침입감내시스템(Intrusion Tolerance System)의 설계에 요구되는 요소 기술 중의 하나는 정량적 신인도(Dependability) 분석이라 할 수 있다. 특히, 신인도중에서 생존성(Survivability)은 침임감내의 개념을 일관되게 반영하고 있는 척도(Measure)이므로 침입감내시스템의 설계시 중요한 요소라 할 수 있다. 본 논문에서는 자가치유 (Self-healing) 메커니즘을 활용하여 주서버와 보조서버가 각 1 대인 Cold-standby 방식의 침입감내시스템의 상태천이(State Transition)를 표현한 후, 시스템의 가용도 및 생존성을 정의하였다. 또한, 시뮬레이션을 통해 두가지 취약성 공격 사례에 대한 생존성 변화추이를 분석함으로써 신인도 향상 방안을 기술하였다.

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유비쿼터스 환경에서의 상황인식형 자가치유 시스템

  • 윤현상;박정민;이은석
    • Proceedings of the Korea Inteligent Information System Society Conference
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    • 2004.11a
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    • pp.259-268
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    • 2004
  • 유비쿼터스환경으로 발전하기 위하여 네트웍을 구성하는 시스템들의 문제나 장애의 자가 진단 및 치유에 대한 요구가 높아지고 있다. 본 논문에서는 이러한 유비쿼터스환경에서 여러 시스템들이 스스로 자신의 오류나 문제를 관찰, 진단하고 치유할 수 있는 자가치유 시스템을 제안한다. 특히, 제안 시스템은 기존의 자가 치유시스템에서 연구되어왔던 일률적인 치유가 아닌 각각의 시스템의 상황을 인식하고 그것에 맞추어서 치유전략을 달리하는 상황인식 기능과 치유 결과 분석을 통해 치유전략을 자발적으로 개선해 나가는 기능을 제공한다. 구체적인 주요 기능은 다음과 같다: 치유대상들의 의존성 점검을 통한 근원적인 문제 해결, 자가치유를 위한 효율적인 리소스 사용, 벤더의 웹서버를 검색하여 치유정보를 수집, 벤더 의존성의 경감등, 치유프로세스의 개선은 물론 치유를 위한 관리자의 작업 부담을 상당 부분 경감할 수 있게 된다. 제안 시스템은 시뮬레이션을 통하여 그 유효성을 입증하고 있다.

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Design and Implementation of Add/Drop control chip using AT&T ORCA FPGA (AT&T ORCA FPGA를 이용한 Add/DroP Control Chip의 설계)

  • Lee, Sang-Hoon;Sung, Yung-Kwon
    • Proceedings of the KIEE Conference
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    • 1996.07b
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    • pp.1286-1288
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    • 1996
  • An add/drop control chip for SDH transmission system has been designed in AT&T 0.5um CMOS ORCA FPGA. This device plays an important role in achieving self-healing ring operation which protects against failure. After this device receives each 24-ch AU-3 signals from the west, east, and add parts, it outputs each 24-ch switched signals through the control data of system control port. This device consists of eight sub-part such west/east transmitting part, west/east receiving part, add/drop control part, AIS control part, and CPU interface part. The designed device is capable to ring networks as well as linear networks.

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In vitro and In vivo Activities Studies of Chois Mastic Using Self-microemulsifying Drug Delivery System (SMEDDS) against Helicobactor pylori (자가미세유화시스템을 이용한 매스틱의 헬리코박터파일로리 대한 In vitro 및 In vivo 활성 연구)

  • Kim, Su-Ji;Jeong, Sang-Young;Gil, Young-Sig;Shin, Byung-Cheol;Hwang, Sung-Joo;Cho, Sun-Hang
    • YAKHAK HOEJI
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    • v.55 no.1
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    • pp.1-10
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    • 2011
  • Mastic is a bleed resin formed in pistacia lentiscus tree extract form the anacatdiaceae family. Mastic is used as a food ingredient in the Mediteraanean resin, and has been used by local inhabitants as a traditional medicine for relief of upper abdominal discomfort, dyspepsiaand peptic ulcer. Clinically, mastic has been effective in the treatment of benign gastric and duodenal, ulcers, giving symptomatic relief and endoscopically proven healing. In this study, to enhance activiteies of poorly water soluble Mastic with oils, surfactants and cosurfactants and then the mixure was microemulsified in aqueous media under condition of gentle agitation and digestive motility that would be encountered in the gastrointestinal tract. Formulation development and screening were based on phase diagrams and characteristics of resultant microemulsion. For optimum mastic formulation, microemulsions with various ratio (w/w%) of mastics, oils, surfactants and cosurfactants were prepared and their solubility was evaluated by monitoring particles size in their buffer through visual asessment and electrophoretic light scattering spectrophotomerter (ELS). In vitro activity of self microemulsified mastic (SME mastic) was determined by minimum ingibition concentration (MIC) test against a panel of Helicobacter pylori (H. pylori) clinical strains. Additionally, in vivo activity of SME masitc was investigated us mouse infected by CH275 of H. pylori. The mean diameter of SME mastic was less then 100 nm in water and SME mastic was showed similar antiboisis effect compared to tometronidazole, clarithromycin and omeproazole. Consequently, SME mastic would be effective system to exterminate H. pylori. If mastic were dose with combined treatment, mastic might augur well for effect of H. pylori eradication as good remedy.

Development of Protection Coordination Algorithm for Smart Distribution Management System using Communication Method based on IEC61850 (IEC61850 기반의 통신방식을 이용한 스마트 배전운영시스템용 보호협조 알고리즘 개발)

  • Chu, Cheol-Min;Yun, Sang-Yun;Kwan, Seung-Chul;Chu, Kyung-Yong;Jin, Young-Kyu;Choi, Myeon-Song
    • The Transactions of The Korean Institute of Electrical Engineers
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    • v.61 no.10
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    • pp.1412-1419
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    • 2012
  • In this paper, we propose the protection coordination algorithm using communication methode based on IEC 61850. The communication protocol in power distribution management system has been issued by IEC standard, IEC61850 of them, which was made for substation automation system, has researched to apply into power distribution system, even though the standard is not a suitable for the system. In smart distribution management system' launched in 2009, the communication network based on the ethernet network for IEC 61850 has been designed to apply the self-healing concept, which is to perform the system protection through the communication between remote terminal units(RTU) according to the standard. However, it is first time to apply the scheme in the real. Thus, this paper proposed the protection algorithm and consideration for applying communication method and introduced the result of demonstration.

Study on the Breakdown Performance of Synthetic Polypropylene Laminated Paper for Application of a HTS Cable (고온초전도 케이블의 응용을 위한 PPLP의 절연파괴 특성연구)

  • Kwag, Dong-Soon;Kim, Young-Seok;Kim, Hae-Jong;Kim, Sang-Hyun
    • Proceedings of the Korean Institute of Electrical and Electronic Material Engineers Conference
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    • 2003.05e
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    • pp.65-68
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    • 2003
  • In this paper, we researched breakdown characteristics of paper/liquid nitrogen composite insulation system for application of a high temperature superconducting cable. And, we have studied the AC breakdown performance of paper/ice composite insulating system immersed in liquid nitrogen. The electric strength in this paper/ice composite system is higher than that of paper/liquid nitrogen system. Furthermore this system shows a self-healing type breakdown behavior. Among the many kinds of liquid to be immersed and frozen to the ice, deionized water gives the highest electric breakdown strength. The paper/ice composite insulation system is thought to be one of good candidate for the electrical insulating system at cryogenic temperature.

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A Study on Literary Therapeutic Codes of Sijo Fused by Transference (전이에 의해 융합되는 시조의 문학치료 코드 연구)

  • Park, In-Kwa
    • Journal of the Korea Convergence Society
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    • v.8 no.10
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    • pp.167-172
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    • 2017
  • The purpose of this study is to analyze the emotional codes of Sijo, which has been acknowledged to have excellent therapeutic function, to activate the contents of the therapy of humanities. Sijo as a function of healing forms emotional codes of therapy, which is the total of emotions, through the fusion of emotions formed during the process of appreciation of various works. This process enables the literary therapeutic activities to proceed physiologically in the human body. Just as machine learning is self-learning by cognitive functions, the coding process for encoding and re-encoding at all times operates on collections of numerous neurons in the human system. In such a process, it is predicted that amino acids are synthesized in the human body by collective encoding of emotion codes. These amino acids regulate the signaling system of the human body. In the future, if the study on the healing process as such at the contact point of humanities and human physiology proceeds, it is expected that a program of higher quality humanistic therapy will be activated.