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안희철,서태현,정동일,이충규 조선대학교 IT연구소 2019 정보기술융합공학논문지 Vol.9 No.1
We propose the development of a monitoring and communication system for network control of multiple objects. The data is collected from remote mobile objects through wireless networks. The data is collected from GPS modules and IMU sensors, converted into a data packets, transmitted to the monitoring system. We implement the monitoring and communication system based on a low-cost single-board computer. The connection is flexible since mobile objects are able to communicate with each other. We demonstrate the system operation in Chosun University campus. As a result, we confirm object positioning and transmission/reception of messages through communication between objects. 본 논문은 다중객체 네트워크 제어를 위한 모니터링 통신시스템을 제안한다. GPS와 IMU 센서로부터 수신된 데이터는 단일 패킷으로 변환된 후 모니터링 시스템으로 전송된다. 저비용 단일보드 컴퓨터를 사용하여 모니터링 통신시스템을 구현하였으며, 모바일 객체 사이의 직접 통신이 가능하여 유연한 연결구성이 가능하다. 시스템 동작 여부를 확인하기 위하여 조선대학교 캠퍼스 내에서 시험을 수행하였다. 결과적으로 각 객체 간 통신으로 객체의 위치 확인, 내부명령어의 송수신, 개별 메시지의 송수신을 확인하였다.
안희철,서정열,정재봉,최영미,최정태,유기철,안무업,최광민,김홍기,김성환,조준휘 대한응급의학회 2002 대한응급의학회지 Vol.13 No.1
Purpose: This study was conducted to examine various clinical factors for their ablity to predict mortality in geriatric patients following trauma. Methods: In this retrospective study, medical records from Chun Cheon Sacred Heart hospital were reviewed for patients 65 years and older who sustained trauma. The following variables were extracted and examined, independently and in combination, for their ablity to predict death: age, gender, mechanism of injury, blood pressure, and respiration, pulse rate, as well as Glasgow Coma Score, Revised Trauma Score, and Injury Severity Score. These patients had entered the hospital following trauma during a 2-year period (1999-2000). Results: The Injury Severity Score (more than 28), the Glasgow Coma Score (less than 9), and the Revised Trauma Score (less than 9), were variables that correlated with mortality. Mortality rates were higher for men than for women. Admission variables associated with the highest risks of death included hypotension (mean blood pressure <78 mmHg); pedestrian and motorcycle traffic accident; skull fracture, subdural hemorrhage, and diffuse axonal injury; and hemothorax and lung contusion. Conclusion: Admission variables in geriatric trauma patients can be used to predict the outcome and may also be useful in making decisions about triage, and treatment of the patient.
안희철,안지윤,손유동 대한노인병학회 2008 Annals of geriatric medicine and research Vol.12 No.2
As the elderly population continues to grow, the number of geriatric patients reported to poison centers continues to increase. Older poisoned patients are at an increased risk of death compared to younger adult patients. The purpose of this paper is to report a case of hydrofluoric acid poisoning along with a discussion of poisoning characteristics. A 79 year-old male with dementia visited emergency department presenting epigastic discomfort after ingestion of 50% hydrofluoric acid solution. At admission, he presented with a stable vital sign but progressed to pulseless electrical activity. In spite of advanced resuscitation efforts and administration of calcium gluconate, he rapidly detoriated and died 3 hours after the ingestion.