• 융합보안논문지
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• 제6권4호
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• pp.67-73
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• 2006

실시간 사이버위협에서 정형화 방법은 각 보안장비의 이벤트를 실시간 분석하여 인터넷 웜, 바이러스, 해킹 등의 사이버공격에 대한 네트워크 이상 징후를 임계치와 상관관계를 틀 통하여 탐지하고, 동 평가결과의 통계분석을 통해 정형화 방안 기능을 부여하고 실효성 있는 사이버공격대응시스템을 구축하는데 있다. 본 논문은 우선 위협지표 산출과 동 지표의 합산을 통한 위협평가 및 조기 경보 과정의 패키지화로 만들고, 사이버 위협 지표 계산의 기준을 설정한다. 특히 보안사고 발생 시 각 보안장비의 이벤트와 트래픽 양에 대한 정의 및 데이터베이스 입력 방법을 구체화하여 실시간 대응 및 조기예경보체계의 초석이 가능한 정형화 방안을 제시한다. 분석을 위해 축적한 90일간의 데이터 임계치 설정작업을 통해 보다 정확한 적용 값을 계산한다. 산출한 값을 토대로 정형화가 가능한 보안이벤트 정보를 표준데이터로 적용, 각 보안장비 및 HoneyNet 시스템, 기타 취약정보 등과의 상관관계를 분석하여 보안이벤트 표준지수를 산출한다.

• 한국재난정보학회 논문집
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• 제14권1호
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• pp.9-16
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• 2018

재난상황하에서는 신속한 지역단위 재난복구를 전문적으로 담당하는 인력이 필요하다. 그러나, 현재의 재난대응체계에서는 대민지원, 자원봉사 등 수준에서 재난복구를 시행하고 있으므로 전문성 부족으로 인한 초기대응 및 재난복구 지연, 재난 지속시 대응 미흡 등 다양한 문제점이 발생하고 있다. 그러므로, 재난상황시 지자체단위 초기 대응능력 구비와 신속히 재난복구를 할 수 있는 전문성을 가진 부대의 창설이 필요하다. 따라서, 본 연구에서는 재난상황하 긴급 재난복구를 통한 지역안정과 재해 주민구호, 재난이전으로의 신속한 전환을 위한 예비군 긴급대응부대를 창설과 운용방안 수준의 방향성을 제시하였다.

• 한국화재소방학회논문지
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• 제24권2호
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• pp.9-20
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• 2010

본 연구는 아직 초보수준인 국내기업의 업무연속성 유지를 위한 재해경감 활동계획 수립 및 실행에 대한 방향을 제시하였으며, 조기대응체계 구축을 통하여 어떠한 재난에도 안전을 기할 수 있는 기업 연속성 유지 방안을 모색하였다. 이를 실현하기 위하여 국내 재난관리 표준으로 채택된 사고대비 및 업무연속성 관리의 가이드라인을 분석하였고, 국내기업에 쉽게 적용할 수 있는 실행지침을 제시하였으며, A기업을 대상으로 재해경감활동계획 수립 및 정보기술을 활용하는 방안을 연구하였다. 특히 사고대비 및 업무연속성 관리의 가이드라인 5단계 주요 절차 중 계획수립단계의 위험 평가, 영향분석, 예방경감계획 및 대응관리계획 수립에 대한 모델을 제시하였고, 국내 재해경감활동이 활성화되기 위한 방안을 도출하였으며, 재난대응 수준을 향상시키기 위하여 필요한 정보기술 부분도 제시하였다.

• 한국게임학회 논문지
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• 제5권1호
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• pp.41-44
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• 2005

본 논문에서는 인터넷환경에서 증가하는 인터넷게임의 바이러스/웜의 공격에 의한 침해사고 발생시 정의되어야 할 정보와 이를 활용한 대량 트래픽을 발생시키는 탐지하는 방안을 제안하였다. 이에 따라 인터넷 게임 사고대응시스템에서의 자동화된 역추적 방안에 대한 설계와 기능에 대한 개념을 제시한다.

• 대한전자공학회:학술대회논문집
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• 대한전자공학회 2009년도 정보 및 제어 심포지움 논문집
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• pp.129-131
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• 2009

Hearing loss is one of the most common birth defects among infants. Most hearing-impaired children are not diagnosed until one to three years of age, which is too late to treat for normal speech and language development. If a hearing impairment is identified and treated in its early stage, child's speech and language skills could be comparable to his or her normal-hearing peers. In this study, we applied the 'Fsp' method to distinguish between normal and impaired hearing. We have developed a battery-operated portable A - ABR(automated auditory brain stem response) system that automatically detects hearing impairment for neonates or infants in a nursery room, as well as in a sound-proof room. We partially validated the accuracy of the system in five normal-hearing adults.

• 한국자동차공학회논문집
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• 제18권2호
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• pp.141-146
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• 2010

This paper describes the static and dynamic characteristics of body mount system which are to be considered in the early design stage. At every location of body mount the static load and dynamic response to road input were calculated using the half car model. Normal mode analysis for the half car model was also performed. In the analysis the design parameters such as the stiffness of mount rubbers and their distribution on mount location were examined for improving ride comfort especially in the lower frequency range.

• Clinical and Experimental Pediatrics
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• 제52권6호
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• pp.649-654
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• 2009

The immune system is comprised of cells and molecules whose collective and coordinated response to the introduction of foreign substance is referred to as the immune response. Defense against microbes is mediated by the early reaction (innate immunity) and the late response (adaptive immunity). Innate immunity consists of the epithelial barrier, phagocytes, complement and natural killer cells. Adaptive immunity, a more complex defense reaction, consists of activation of later-developed lymphocytes that, when stimulated by exposure to infectious agents, increase in magnitude and defensive capabilities with each successive exposure. In this review we discuss recent advances in important primary immune deficiency disorders of innate immunity (chronic granulomatous disease, leukocyte adhesion deficiency) and adaptive immunity (severe combined immune deficiency, Wiskott- Aldrich syndrome).

• 한국측량학회지
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• 제36권3호
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• pp.177-184
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• 2018

In case that limited resources can be mobilized, non-structural countermeasures such as 'monitoring using Information and Communication Technology might be one of solutions to mitigate disaster risks. Having established the monitoring system, operational and maintenance costs to maximize the effectiveness might trouble the authority concerned or duty attendant who is in charge. In this respect, "Guerrilla Sensor" would be very cost effective because of the inherent mobility characteristic. The sensor device with the IRIS camera and GPS (Global Positioning System) equipped, is basically battery-operated and communicates with WCDMA (Wideband Code Division Multiple Access). It has a strong advantage of capabilities for 'Disaster Response' with immediate and prompt action on the spot, making the best use of IoT (Internet of Things), especially with the mobile web. This paper will explain how the sensor system works in real-time GIS (Geographic Information System) pinpointing the exact location of the abnormal movement/ground displacement and notifying the registered users via SMS (Short Message Service). Real time monitoring with early warning and evaluation of current situations with LBS (Location Based Service), live image and data information can help to reduce the disaster impact. Installation of Guerrilla sensor for a real site application at Gimcheon, South Korea is also reported.

• Journal of Animal Science and Technology
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• 제62권3호
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• pp.385-395
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• 2020

Polyinosinic:polycytidylic acid (poly[I:C]) can stimulate Toll-like receptor 3 (TLR3) signaling pathways. In this study, DF-1 cells were treated with poly(I:C) at various concentrations and time points to examine the comparative expression patterns of innate immune response genes. The viability of DF-1 cells decreased from 77.41% to 38.68% when cells were treated different dose of poly(I:C) from 0.1 ㎍/mL to 100 ㎍/mL for 24 h respectively. The expressions of TLR3, TLR4, TLR7, TLR15, TLR21, IL1B, and IL10 were increased in dose- and time-dependent manners by poly(I:C) treatment. On the contrary, the expression patterns of interferon regulatory factors 7 (IRF7), Jun proto-oncogene, AP-1 transcription factor subunit (JUN), Nuclear Factor Kappa B Subunit 1 (NF-κB1), and IL8L2 were varied; IRF7 and IL8L2 were increasingly expressed whereas the expressions of JUN and NF-κB1 were decreased in a dose-dependent manner after they were early induced. In time-dependent analysis, IRF7 expression was significantly upregulated from 3 h to 24 h, whereas JUN and NF-κB1 expressions settled down from 6 h to 24 h after poly(I:C) treatment although they were induced at early time from 1 h to 3 h. Poly(I:C) treatment rapidly increased the expression of IL8L2 from 3 h to 6 h with a plateau at 6 h and then the expression of IL8L2 was dramatically decreased until 24 h after poly(I:C) treatment although the expression level was still higher than the non-treated control. These results may provide the basis for understanding host response to viral infection and its mimicry system in chickens.

• 한국발생생물학회지:발생과생식
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• 제20권4호
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• pp.297-304
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• 2016

Lectins belong to the pattern-recognition receptors (PRRs) class and play important roles in the recognition and elimination of pathogens via the innate immune system. Recently, it was reported that lily-type lectin-1 is involved when a pathogen attacks in the early immune response of fish. However, this study is limited to information that the lectin is involved in the innate immune response against viral infection. In the present study, the lily-type lectin-2 and -3 of Oplegnathus fasciatus (OfLTL-2 and 3) have been presented to be included B-lectin domain and two D-mannose binding sites in the amino acid sequence that an important feature for the fundamental structure. To investigate the functional properties of OfLTLs, the tissue distribution in the healthy rock bream and temporal expression during early developmental stage analysis are performed using quantitative real-time PCR. OfLTL-2 and 3 are predominantly expressed in the liver and skin, but rarely expressed in other organ. Also, the transcripts of OfLTLs are not expressed during the early developmental stage but its transcripts are increased after immune-related organs which are fully formed. In the challenge experiment with RBIV (rock bream iridovirus), the expression of OfLTLs was increased much more strongly in the late response than the early, unlike previously known. These results suggest that OfLTLs are specifically expressed in the immune-related tissues when those organs are fully formed and it can be inferred that the more intensively involved in the second half to the virus infection.