• 한국IT서비스학회:학술대회논문집
• /
• 2008.11a
• /
• pp.445-448
• /
• 2008

최근의 비디오 영상을 사용한 상황 판단 기법들은 사용자의 인식과 판단에 의존하고 있을 뿐만아니라 실시간 대응이 어렵다는 단점이 있었다. 따라서 본 논문에서는 순차패턴을 이용하여 실시간으로 영상에 나타나는 객체들의 비정상 행위를 탐지하는 자동화 방법을 제안한다.

• Proceedings of the Korean Society for Noise and Vibration Engineering Conference
• /
• 2000.06a
• /
• pp.1925-1932
• /
• 2000

Damage detection methods using vibration modes are investigated on ring structures and. modal behavior of the slightly asymmetric rings is examined. Mode shapes changes, MSER(modal strain energy ratio) and MCR(modal curvature ratio) are applied to identify the locations of faults or damages. Parameters are calculated and compared by finite element analysis on rings with designed local damages. Damages are modeled as reduced stiffness in the analysis. The results show MSER and MCR can be proper factors to detect local damages in ring structures.

• Proceedings of the Korea Institutes of Information Security and Cryptology Conference
• /
• 2001.11a
• /
• pp.166-169
• /
• 2001

광범위한 인터넷의 발달은 우리의 생활을 윤택하게 해주었지만, 불법적인 침입, 자료 유출 등 범죄도 늘었다. 이에 따라 불법적인 침입을 막는 침입탐지기술도 많이 발전하게 되었다. 침입탐지기술은 크게 오용탐지방법과 비정상적인 행위 탐지 방법으로 나눌 수 있다. 본 논문에서는 비정상적인 행위 탐지 방법의 긍정적 결함을 줄이기 위한 방법으로 유사도 측정 알고리즘을 사용한 방법을 제시하고자 한다.

• Journal of Multimedia Information System
• /
• v.3 no.2
• /
• pp.9-12
• /
• 2016

This paper is concerned with the effective and efficient identification of the gender and motion of humans. Tracking this nonverbal behavior is useful for providing clues about the interaction of different types of people and their exact motion. This system can also be useful for security in different places or for monitoring patients in hospital and many more applications. Here we describe a novel method of determining identity using machine learning with Microsoft Kinect. This method minimizes the fitting or overlapping error between an ellipsoid based skeleton.

• Proceedings of the KIPE Conference
• /
• 1998.10a
• /
• pp.615-619
• /
• 1998

Active power filter is a kind of device used for compensating instantaneous reactive and harmonic current in three-phase circuits. An essential technology that determines the behavior of an active power filter is the method of detecting the distorted current. Using three-dimensional space vectors, this paper describes a simple method for detecting the distorted current without any coordinate transformation. The effectiveness of the novel method is verified by the theoretical analysis and simulation.

• 한국IT서비스학회:학술대회논문집
• /
• 2010.05a
• /
• pp.475-478
• /
• 2010

최근 영상처리 기술이 발전함에 따라 비디오 영상 처리를 통한 비정상행위 탐지 기술에 대한 관심이 증가하고 있다. 하지만 대부분의 논문들은 하나의 카메라, 혹은 하나의 공간 내에서 이루어지는 비정상탐지 기법을 제안해 왔다. 본 논문에서는 기존의 비디오 마이닝을 이용한 영상처리 기술을 확장하여 공간과 카메라의 수에 제한이 없이 비정상행위를 탐지할 수 있는 방법을 프로그램 구현을 통해 제시한다.

• Proceedings of the Korean Information Science Society Conference
• /
• 2003.04a
• /
• pp.539-541
• /
• 2003

본 논문에서는 컨텐츠 사이트에서 디지털 컨텐츠를 보호하기 위하여 사용자 행동 패턴을 분석을 이용해 특이한 성향을 보이는 사용자를 탐지하기 위한 모델을 제시하였다. 사용자의 행동 패턴을 분석하기 위한 탐지 규칙(detection rule)으로 Syntactic Rule과 Semantic Rule을 정의하였다. 사용자 로그 분석 결과 탐지 규칙에 대한 위반 정도가 일정 범위를 벗어나는 사용자를 비정상적인 사용자로 추정하였다. 또한 제안 모델은 eCRM 시스템에서 이탈 가능성이 있는 고객 집단을 사전에 탐지하여 고객으로 유지하기 위한 promotion 전략 수립에 응용될 수 있다.

• Journal of Environmental Science International
• /
• v.21 no.7
• /
• pp.837-843
• /
• 2012

The aims of this study were to investigated the occurrence of caffeine and carbamazepine in Nakdong river basin (8 mainstreams and 2 tributaries) and the behavior of caffeine and carbamazepine under drinking water treatment processes (conventional and advanced processes). The examination results showed that caffeine was detected at all sampling sites (5.4~558.5 ng/L), but carbamazepine was detected at five sampling sites (5.1~79.4 ng/L). The highest concentration level of caffeine and carbamazepine in the mainstream and tributaries in Nakdong river were Goryeong and Jinchun-cheon, respectively. These pharmaceutical products were completely removed when they were subject to conventional plus advanced processes of drinking water treatment processes. Conventional processes of coagulation, sedimentation and sand-filtration were not effective for their removal, while advanced processes of ozonation and biological activated carbon (BAC) filtration were effective. Among these pharmaceuticals, carbamazeoine was more subject to ozonation than caffeine.

• Korean Journal of Adult Nursing
• /
• v.18 no.1
• /
• pp.22-30
• /
• 2006

Purpose: This study was conducted to identify the effects of the self efficacy promoting program on self efficacy and performance of preventive health behavior of uterine cervical cancer for community nurses. Method: A one group quasi-experimental research with pre and post test design was used. The subjects of the study were consisted of twenty two community nurses in a city in Korea. The whole program was carried out from July to September, 2003. The effect of the program was analyzed at the first week, the fifth week, and the ninth week since the experiment input began. Data were analyzed with repeated ANOVA to determine the effects of program. Results: 1) After the self efficacy promoting program, self efficacy scores were significantly increased compared to those before the program(F=12.029. p=0.005). 2) After the self efficacy promoting program, preventive health behavior scores were significantly increased than those before the program(F=10.431. p=0.006). Conclusions: This 9-week program showed much affirmative effect on the prevention of uterine cervical cancer for community nurses. Thus this program can be recommended to the management of the prevention and early detection of uterine cancer.

• The Korean Journal of Health Service Management
• /
• v.11 no.1
• /
• pp.171-180
• /
• 2017

Objectives : The objective of this study was to compare oral health behaviors and oral health indices between regular scaling group and irregular scaling group. Methods : This study was performed at M Dental Clinic in Busan on 352 dental patients treated between January 2014 and June 2015 using V6.0 software and medical interviews. The 352 patients were divided into 3 groups and oral health behavior (OHB) and oral health indices were compared. Results : The OHB scores significantly differed among Groups C and A. Group C had the lowest number of "Bad" scores for the Simplified Debris Index (S-DI), Simplified Calculus Index (S-CI), and Simplified Oral Hygiene Index (S-OHI). Groups B and A had the lowest number of "Excellent" scores. Group C had the lowest bleeding on probing (BOP), calculus rate (CR) and decayed teeth (DT). Furthermore, Group C had the highest number of missing teeth (MT) and filled teeth (FT). Conclusions : Patients who underwent regular scaling had the highest OHB and oral health index scores. This emphasizes the importance of regular scaling for prevention and early detection of oral disease.