• 정보보호학회논문지
• /
• 제25권6호
• /
• pp.1607-1620
• /
• 2015

서버 Privilege 계정은 법규에 따라 운영 되어야 한다. 그러나 농협은 서버 Privilege 계정 운영에 대한 법규 미준수와 운영 미흡으로 서버의 모든 데이터가 삭제되는 농협 전산망 해킹 사건이 발생하였다. 본 연구에서는 금융회사의 서버 Privilege 계정 운영방식을 결정하기 위한 모델을 제시하기 위해 금융회사의 Privilege 계정 운영 현황을 조사하여 문제점을 도출하고, 개선방안을 제시한다. 또한, Privilege 계정 운영현황 조사를 통해 선정된 평가요인은 AHP(Analytic Hierarchy Process)를 사용하여 의사결정 모델과 공식을 제시하고 검증한다.

• 한국가스학회지
• /
• 제9권3호
• /
• pp.38-43
• /
• 2005

화학공장들을 비롯한 수많은 가스 이용 시설들에서는 방대한 양의 운전 변수들을 감시하면서 운전 상태 및 부하에 따라 설비를 제어하고 있다. 이러한 공정에서 운전자가 인식할 수 있는 공정의 이상(fault)은 물리적인 고장(physical failure)이나 외부 교란, 운전자의 오류(human error) 등과 같은 원인으로 인하여 공정의 운전 조건이 정해진 상태를 벗어난 비정상(abnormal) 상태가 지속적으로 누적되면서 발생한다 이러한 공정의 이상이 발생하기 전부터 비정상 상태가 지속됐다는 것에 기초하여, 운전 변수들을 실시간으로 감시하여 공정 상태의 판단을 도와주고, 공정의 이상이 발생하기 전에 조기 경보를 해주는 조기 경보 시스템에 대해 연구하였다.

• Architectural research
• /
• 제14권1호
• /
• pp.35-44
• /
• 2012

Build-Transfer-Lease (BTL) was introduced to the domestic construction market in 2005. Now, seven years later, the BTL model is most active for educational facilities. In 2011, 93 educational facility projects entered the maintenance stage. Considering the characteristics of today's BTL projects for educational facilities, the main issues are the initial performance and maintenance of educational facilities and the service-providing status for the 20-year operational management period, in relation to providing safety and convenience to students, the facility users. Seeking a solution, local education offices and departments in charge of BTL under the Ministry of Education, Science, and Technology have been exploring various methods of evaluating operational maintenance performance from various perspectives. For educational facility BTL projects, however, the appropriateness of initial operation performance evaluation, rather than considering the 20-year operational management period, is controversial in regards to sustainability. On this account, performance evaluation items in four areas-operational maintenance evaluation, facility performance status evaluation, maintenance subject evaluation, and sustainable change response evaluation-should be extracted. An indicator of facility performance evaluation is presented in this study through an AHP survey targeting experts, as part of establishing an operation performance evaluation system for educational facility BTL projects.

• 임상간호연구
• /
• 제23권1호
• /
• pp.120-129
• /
• 2017

Purpose: The purpose of this study was to identify the degree of menopause symptoms and associated factors in patients with breast cancer who were receiving hormone therapy. Methods: Data were collected with questionnaires from 150 patients with breast cancer who had been on hormone therapy at a hospital in Seoul. Data were analyzed with the t-test, ANOVA, and Pearson correlation coefficient to compare the degree of menopause symptoms by demographic, clinical and psychological factors. Results: The mean menopause symptoms score was $13.39{\pm}7.97$. Most participants reported having hot flushes and sweating (75.3%), physical and mental exhaustion (82.7%) and sexual problems (64.7%). Menopause symptoms and depression were correlated with each other (p<.01). Somato-vegetative symptoms were different significantly by age, menopausal status at time of operation, occupation and tumor. Psychological symptoms were different significantly by marital status, operation type and chemotherapy. Urogenital symptoms were different significantly by prior history of cancer, occupation, operation type and radiation therapy. Conclusion: These findings can be used to provide tailored nursing interventions by identifying high risk groups for menopausal symptom among breast cancer patients receiving hormone therapy.

• 한국정보통신학회:학술대회논문집
• /
• 한국정보통신학회 2017년도 춘계학술대회
• /
• pp.233-235
• /
• 2017

지게차는 작업 환경여건상 이동하는 경우보다 제자리에서 작업하는 경우가 많아 일반적인 자동차의 계기판과 다르게 이동거리를 표현하지 않고 엔진 가동시간만을 표현한다. 그렇기 때문에 지게차를 구성하는 다양한 소모품들은 엔진 가동시간에 따른 교체주기를 가진다. 하지만 이러한 교체주기 또한 지게차마다 작업환경이 다르기 때문에 엔진 가동시간 만으로 정확한 교체 주기를 판단하기가 매우 어렵다. 본 논문에서는 GPS와 IMU센서를 이용하여 지게차의 위치정보, 이동거리 정보를 운전자에게 제공하는 시스템을 제안한다. 본 시스템을 사용함으로써 기존의 계기판으로 판단하기 어려운 지게차 상태정보를 보다 쉬운 정보로 제공해 지게차 관리 및 유지에 대한 경제적 이익을 기대한다.

• 천문학회보
• /
• 제40권2호
• /
• pp.60.1-60.1
• /
• 2015

We present the current operation status of StarDB web services by showing its user access statistics. The StarDB web services started its operation in late November, allowing world-wide users to access results of new variability analysis for Northern Sky Variability Survey light curves. New analysis results of various time-series data have been added to the StarDB services. Importantly, our services have supported a simple cone search, which is an internationally well-defined catalog search interface in the international Virtual Observatory systems. We have collected user access statistics such as how users find our analysis data since its operation in later November. We expect our analysis of the StarDB operation to help Korean community members who plan and operate their own web services preparing for a future era of big survey data.

• 한국철도학회:학술대회논문집
• /
• 한국철도학회 2009년도 춘계학술대회 논문집 특별세미나,특별/일반세션
• /
• pp.341-347
• /
• 2009

In high speed railway, event recorder system stores a train speed and the related data for train operation in real time. Using those information, we can analysis the train operation and the reason of train accident. Analysis software gets the stored data from Event Recorder and shows the status of various signals related with train operation. Using it, also we can analysis the train operation before and after the given time. In this paper we propose the analysis software to show and analysis the operation of high speed train. The method of transferring the stored data from Event Recorder into Analysis Software is proposed. We develop the efficient procedure to store the transferred data into analysis system. Also the effective method to show the store data and to analysis them is studied for finding the cause of train accident.

• 대한설비공학회지:설비저널
• /
• 제27권2호
• /
• pp.115-122
• /
• 1998

• 한국지구물리탐사학회:학술대회논문집
• /
• 한국지구물리탐사학회 2010년도 학술대회 초록집
• /
• pp.109-111
• /
• 2010

• Journal of Electrical Engineering and Technology
• /
• 제9권1호
• /
• pp.324-333
• /
• 2014

In this study, physiological status of locomotive engineers were measured through EEG, ECG, EDA, PPG and respiration signals from 6 subjects to evaluate their arousal status during train operating. Existence of tunnels and mechanical vibration of train using 3-axes acceleration sensors were recorded simultaneously and were correlated with operator's physiological status. As the result of the analyzed subjects' physiological signals, mean SCR was increased in the section where more body movement is required. The RR interval was decreased before and after train stop due to the higher level of mental tension. The intensity of beta wave of EEG was found to be higher before and after train stop and tunnel section due to the increased mental arousal and tension. Therefore, it is expected that the outcomes of the physiological signals explored in this study can be utilized as the quantitative assessment methods for the arousal status to be used for sleepiness prevention system for vehicles operators which can greatly contribute to public transportation system safety.