• 한국정보처리학회:학술대회논문집
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• 한국정보처리학회 2004년도 춘계학술발표대회
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• pp.1083-1086
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• 2004

Switched Network는 Shared Network 에 비해서 스니핑에 안전하다. 하지만 비교우위일뿐 절대적으로 스니핑에 안전한 것은 아니다. 이미 Switched Network 상에서 스니핑을 할 수 있는 공격툴들이 많이 소개되어 있다. 본 논문에서는 Switched Network 상에서 ARP(Address Resolution Protocol) 스푸핑을 통한 ARP 캐시 오염을 통하여 스니핑이 가능한 시나리오를 기술한다. 이러한 시나리오를 탐지하기 위한 기존의 방법은 DHCP와 같은 동적인 환경이 포함된 경우 False Positive 를 자주 발생시키기 때문에 문제가 된다. 여기에서는 이러한 False Positive를 줄인 탐지 방법을 제시하고자 한다.

• 한국보건간호학회지
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• 제9권1호
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• pp.83-102
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• 1995

As the society is being industrialized, the fast-paced economic development that has caused substantial increase in cerebrovascular and coronary artery diseases and the industrial development and increased use of means of transportation have resulted in the rapid rise of incidents in external injuries as well. So the pubic has become acutely aware of the need for fast and effective emergency care delivery system. The goal of emergency care delivery system is to meet the emergency care needs of patients. The emergency care delivery system is seeking to efficiently satisfy the care needs of people. Therefore the purpose of this study is designed to develop an effective programs for emergency care delivery system in Korea. The following specific objectives were investigated. This emergency care delivery system must have the necessary man power, for transfering the patients, communication net work, and emergency care facilities. 1) Man power Emergency care requires n0t only specialized traning in the emergency treatment but also knowledge and experience i11 other related area, so emergency care personnel traning program should be designed in order to adapt to the specific need of emergency patients. It will be necessary to ensure professional personnel who aquires the sufficient traning and experience for emergency care and to look for legal basis. We have to develop re-educational programs for emergency nurse specialist. They should be received speciality of emergency nursing care so that they will work actively and positively in emergency part. Emergency medical doctor and nurse specialist should be given an education which is related in emergency and critical care. Emergency care personnel will continue to provide both acute and continuing care as partner with other medical team. 2) Transfering the patients. Successful management of pre-hospital care requires adequate traning for the emergency medical technician. Traning program should be required to participate in a actual first aids activites in order to have apportunities to acquire practical skills as well as theoretical knowledge. The system of emergency medical technician should be remarkablly successful with first responder firefighters. Establishing this system must add necessary ambulances operating at any given time. It will be necessary to standardize the ambulance size and equipment. Ambulance should be arranged with each and every fire station. 3) Communication net work. The head office of emergency commumication network should be arranged with the head office of fire station in community. It is proposed that Hot-line system for emergency care should be introduce. High controlled ambulance and thirtial emergency center should simultaneously equip critical-line in order to communication with each other. Ordinary ambulance and secondary emergency facility should also simultaneously equip emergency-line in order to communication with each other. 4) Emergency care facilities. Primary emergency care facilities should be covered with the ambulatory emergency patients-minor illness and injuires. Secondary emergency care facilities should be covered with the emergency admission patients. Third emergency care center should be covered with the critical patients who need special treatments and operation. Secondary and third emergency care facilities should employ emergency medical doctor and emergency nurse specialist to treat in-patients with severe and acute illness and multiple injuires. It should be fashioned for a system of emergency facilities that meets emergency patients needs. Provide incentives for increased number of emergency care facilities with traning in personal/clinical emergency care. 5) Finance It is recommended to put the finance of a emergency care on a firm basis. The emergency care delivery system should be managed by the government or accreditted organizations. In order to facilitate this relevant program the fund is needed for more efficient and effective emergency researchs, service, programs, and policy. 6) Gaining understanding and co-operation of pubic It is also important to undertake pubic education to improve understanding of first aids and C. P. R of individuals, communities and business. It is proposed that teachers and health officers be certified in C. P. R. The C. P. R education can be powerful influence save lives. Lastly appropriate emergency care information must be provided to the pubic for assisting them in choosing emergency care.

• 전자공학회논문지
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• 제51권5호
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• pp.58-69
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• 2014

후쿠시마 사고와 같은 중대사고에 대비하기 위하여 극한환경 내에서도 동작하여 원자력 발전소 내부 상태에 관련된 계측신호를 취득하고, 사고복구에 필요한 밸브, 펌프 등과 같은 비상기기를 작동시킬 수 있는 극한환경용 제어기기와 발전소로부터 최소 30km 떨어진 곳에서 발전소 내부 상황을 감시하고, 제어할 수 있는 모바일 원격 제어실 등으로 구성된 비상대응시스템이 필요하다. 본 논문에서는 극한환경용 제어기기와 모바일 원격 제어실과의 연계를 위한 비상대응시스템 개념 설계 및 성능분석에 대하여 논의하였다. 비상통신시스템은 IEEE 802.11 기술표준을 이용한 지상망과 천리안 위성을 이용한 위성망의 이중화 시스템으로 구성되고, 각 시스템에 대하여 통신링크 버짓, Throughput, 지연시간을 분석하였다.

• 한국정보전자통신기술학회논문지
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• 제12권1호
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• pp.22-28
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• 2019

This paper presents a method for detection of an emergency signal expressed by arm gestures based on motion segmentation and face area detection in the surveillance system. The important indicators of emergency can be arm gestures and voice. We define an emergency signal as the 'Help Me' arm gestures in a rectangle around the face. The 'Help Me' arm gestures are detected by tracking changes in the direction of the horizontal motion vectors of left and right arms. The experimental results show that the proposed method successfully detects 'Help Me' emergency signal for a single person and distinguishes it from other similar arm gestures such as hand waving for 'Bye' and stretching. The proposed method can be used effectively in situations where people can't speak, and there is a language or voice disability.

• 기본간호학회지
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• 제26권3호
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• pp.155-165
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• 2019

Purpose: Although emergency care is one of the most important capabilities for novice nurses, many novice nurses have shown difficulty in emergency care in the clinical field. The purpose of this study was to provide evidence data for the future development of educational programs by analyzing the priorities in emergency care of novice nurses using the Importance-Performance Analysis. Methods: This study was designed as a descriptive survey. The participants were 197 novice nurses who worked in general hospitals from August 1 to 31, 2018. The questionnaire consisted of 'common emergency care', 'cardiovascular emergency care', 'nervous system emergency care', 'respiratory system emergency care', 'communication and teamwork competency'. Results: As a result of this study, 'communication and teamwork' among emergency cares was evaluated as the most important capability in the clinical field. In the Importance-Performance Analysis, a total of 12 items were included in the quadrant A, including 5 items related to 'cardiovascular emergency care', 4 items to 'respiratory system emergency care', 2 items to 'nervous system emergency care' and 1 item to 'common emergency care'. The results showed a need for intensive improvement in items included in quadrant A which are the high importance low performance items. Conclusion: In order to improve the emergency care of novice nurses, a variety of emergency care education programs on the nervous system and respiratory system care should be implemented as well as cardiovascular emergency care education.

• 한국ITS학회 논문지
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• 제6권2호
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• pp.70-80
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• 2007

차량 간 통신 네트워크 환경에서 차량 간 혹은 차량 대 기지국 간 통신 시 다양한 통신에 방해가 되는 장애 요소가 발생하거나 존재할 수 있다. 다양한 장애 요인들로 인하여 차량의 고장이나 긴급상황이 발생할 경우 정보 전송과정에서 통신 네트워크의 포화상태나 과도한 경쟁으로 인한 패킷의 손실 및 지연이 발생하게 된다. 이러한 결과 인적, 물적 피해와 더불어 지속적인 통신시도로 차량의 전원고갈 문제가 발생할 수 있다. 따라서, 다양한 장애요인이 상존하는 도로 환경에서 종단간에 고속, 안정적일 뿐만 아니라 에너지 효율적인 프로토콜 개발이 요구된다. 본 논문에서는 IEEE 802.15.3 WPAN을 기반으로 차량간 통신 시스템에서 에너지 효율적인 긴급 메세지 전송을 위한 MAC 프로토콜을 제안한다. 시뮬레이션 및 분석을 통하여 본 논문에서 제안하는 방법이 패킷충돌 및 경쟁으로 발생하는 전송지연을 감소시켰으며, 에너지 효율적인 프로토콜임을 확인하였다.

• 기본간호학회지
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• 제18권3호
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• pp.373-382
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• 2011

Purpose: The purpose of this study was to assess the educational needs of ICU nurses based on an analysis of importance, frequency, and difficulty for ICU nursing practice. Method: A cross-sectional survey was conducted using a questionnaire with 80 questions in 14 ICU nursing categories. Data were collected from August to October 2009. A total of 295 ICU nurses from five hospitals who had minimum of one year clinical experience participated. Data were analyzed with using descriptive statistics. Results: For importance, emergency care had the highest score, followed by physical assessment, communication, cardiovascular care, and ICU basic nursing. Regarding the frequency, physical assessment had the highest score, followed by communication, medication, ICU basic nursing, and respiratory care. Cardiovascular care was the most difficult task, followed by neurological care, emergency care, other ICU related nursing care, diagnostic test, and communication. Conclusion: The findings indicate a high educational need in the areas of communication, medication, physical assessment, diagnostic test, emergency care, and cardiovascular care. Thus the development of educational programs on communication, medication, physical assessment, diagnostic test, emergency care, and cardiovascular care are needed for ICU nurses.

• 한국정보통신학회논문지
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• 제22권4호
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• pp.569-574
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• 2018

본 논문에서는 동적으로 설정되는 피난 유도 표지에 실시간 화재 상황을 반영한 최적의 피난 경로를 제시하는 LoRa 기반 피난 유도 체계를 설계하고 구현한다. 각 피난 유도 표지는 전후좌우를 나타내는 4개의 LED 지시등으로 구성되고 화재 발생 시 실시간으로 계산된 최적의 대피 경로를 화살표로 표시한다. 제안 알고리즘의 검증을 위해 동적인 화재 상황을 모의 생성하는 시뮬레이션 환경을 구축하여 다양한 지점에서 화재가 발생했을 때 각각의 피난 유도 표지가 정확한 피난 경로를 안내하는지 여부를 검증하였다. 또한 LoRa 기반 무선통신의 성능 확인을 위해 실내, 실내 대 실외, 실외 환경에서 데이터 전송률을 측정하였다. 제안하는 시스템은 다수의 피난 유도 표지 설치 외에는 시스템 운영을 위한 추가 설비가 필요 없다는 측면에서 대형 건물은 물론 중소형 건물에도 쉽게 적용할 수 있다.

• Journal of information and communication convergence engineering
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• 제8권5호
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• pp.508-512
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• 2010

Supporting emergency services (ES) for VOIP services in the Internet is a critical feature. It requires international standards since the VOIP services over the Internet has no national boundaries. Recently, standard development organizations such as the IETF, the IEEE 802 committee and the WiMAX Forum (WMF) have worked on this issue. In this paper, we review and compare ES architectures proposed by the IETF and the WMF, and summarize the IEEE 802's relevant activities.

• 한국통신학회:학술대회논문집
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• 한국통신학회 2004년도 하계종합학술발표회논문초록집
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• pp.413-413
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• 2004