CNN과 Kibana를 활용한 호스트 기반 침입 탐지 연구

박대경 ( Daekyeong Park ),신동규 ( Dongkyoo Shin ),신동일 ( Dongil Shin ) 한국정보처리학회 2020 한국정보처리학회 학술대회논문집 Vol.27 No.2

사이버 공격이 더욱 지능화됨에 따라 기존의 침입 탐지 시스템(Intrusion Detection System)은 기존의 저장된 패턴에서 벗어난 지능형 공격을 탐지하기에 적절하지 않다. 딥러닝(Deep Learning) 기반 침입 탐지는 새로운 탐지 규칙을 생성하는데 적절하다. 그 이유는 딥러닝은 데이터 학습을 통해 새로운 침입 규칙을 자체적으로 생성하기 때문이다. 침입 탐지 시스템 데이터 세트는 가장 널리 사용되는 KDD99 데이터와 LID-DS(Leipzig Intrusion Detection-Data Set)를 사용했다. 본 논문에서는 1차원 벡터를 이미지로 변환하고 CNN(Convolutional Neural Network)을 적용하여 두 데이터 세트에 대한 성능을 실험했다. 평가를 위해 Accuracy, Precision, Recall 및 F1-Score 지표를 측정했다. 그 결과 LID-DS 데이터 세트의 Accuracy가 KDD99 데이터 세트의 Accuracy 보다 약 8% 높은 것을 확인했다. 또한, 1차원 벡터에 대한 데이터를 Kibana를 사용하여 데이터를 시각화하여 대용량 데이터를 한눈에 보기 어려운 단점을 해결하는 방법을 제안한다.

Genesis 영상처리 보드를 이용한 의용 영상 실시간 에지 검출

심성균,정원영,이영철 경남대학교 공업기술연구소 2000 硏究論文集 Vol.18 No.-

인터넷과 전자산업기술의 발달로 영상의 획득과 처리를 동시에 수행하는 실시간 처리 기술이 용이하게 되었다. 본 논문에서는 심장혈관의 위치, 모양, 크기 등의 정보를 우리에게 알려주는 의용 영상의 에지검출에 Genesis 보드와 이를 제어하는 MIL 패키지를 사용하여 실시간 개념을 적용한 실험을 구현해 보았으며, 획득한 영상에 적용한 마스크의 크기에 따른 영상처리 속도와 실시간 개념에 맞는 최대 제한 속도를 조사해 보았다. The development of electronics and internet technologies is enable to perform of real-time image acquisition, processing, and transmission almost simultaneously. In the paper, real-time edge detection of the medical coronary angiograms image was accomplished by making use of the Genesis H/W board and the MIL(Matrox Image Library) S/W package. The comparison of the processing time for the various mask to detect the edges of the given image shows the determination about the limited mask size under the real-time processing environment.

능동 필터가 결합된 Cascode형 Mixer의 이미지 제거 특성분석

심재우,이영철 경남대학교 공업기술연구소 2001 硏究論文集 Vol.19 No.-

본 논문에서는 능동소자의 부성저항 특성을 이용하여 이미지 제거 필터기능과 믹서기능을 나타내도록 캐스코드결합 믹서를 설계하였다. 능동필터는 차단대역특성을 바이어스와 튜닝인덕턴스 및 캐패시턴스에 의한 최적화시켜 이미지신호 제거특성을 나타나도록 설계하였으며 설계된 캐스코드의 믹서에 국부발진주파수를 4GHz, RF입력신호를 5∼5.5GHz를 인가하였을 때 이미지대역은 2.5GHz∼3GHz에서 발생하였으며 출력단의 IF 주파수와의 비교에서 이미지신호제거능력은 대역내에서 -46dB을 보였으며 캐스코드 믹서의 변환이득은 1.3dB이었다. In this papaers, we designed the cascode mixer which have image rejection and active filter behaviors with negative resistance characteristics of active device. The designed active filter to have notched bandpass filter, is optimized the bias voltage, tunning inductance and capacitances to reject of image signal. The designed cascode mixer which is of 4GHz local oscillating frequency and 5∼5.5GHz RF input signal, image band of 2.5∼3GHz, shows -46dB of image rejection ratio and 1.2dB conversion gain on the band.

염모제 도포방법에 따른 인체 적혈구의 산화스트레스 비교

김영철,심미자,권정숙 한국환경독성학회 2004 환경독성보건학회지 Vol.19 No.2

To ascertain the effects of hair dyeing application on oxidative stress in human, a mixture of permanent black colored hair dye with the same amount of oxidant containing 6% hydrogen peroxide was used. A hair dyeing with contacting the scalp(conventional dyeing) and a hair dyeing with 3 to 4mm away from the scalp(alternative dyeing) were applied to each 15 young healthy women. Blood was taken from the brachial vein at two sampling times, just before and 6 hours after the hair dyeing, and antioxidant enzyme activities and antioxidant contents were measured in red blood cells. After increased, malondialdehyde(MDA) contents for conventional dyeing group was shown to a tendence for more increased than alternative dyeing group. After dyeing, reduced glutathione(GSH) contents for conventional dyeing group was shown to a tendence of more decreased than alternative dyeing group. After dyeing, superoxide dismutase(SOD) and catalase(CAT) activities were significantly decreased in conventional dyeing group(p<0.01), however, SOD and CAT activities were not significantly decreased in alternative dyeing group. After dyeing, there was no significant decrease in glutathione peroxidase(GPX) activity both for conventional dyeing group and alternative dyeing group. Therefore, after dyeing, the degree of oxidative stress in red blood cells for alternative dyeing group was appeared to be lower than conventional dyeing group.

자궁경부암 검사에서 Cotton swab 방법과 Cytobrush 채취방법에 의한 세포학적 진단 비교 분석 결과

선승철,이준기,양순희,박영심 한국건강관리협회 1998 건협 Report Vol.1 No.-

염모제 사용에 의한 인체림프구의 DNA 손상 변화

김영철,심미자,권정숙 한국환경독성학회 2004 환경독성보건학회지 Vol.19 No.1

To ascertain the effects of hair dyeing application on the DNA damage in human lymphocytes, a mixture of permanent black colored hair dye with the same amount of oxidant containing 6% hydrogen peroxide was used. A hair dyeing with contacting the scalp(conventional dyeing) and a hair dyeing with 3 to 4mm away from the scalp(alternative dyeing) were applied to each 15 young healthy women. Blood was taken from the brachial vein at two sampling times, just before and 6 hours after the hair dyeing, and tail extent moment(TEM) and tail length(TL) were measured by using a comet assay. After dyeing, TL was significantly increased in both conventional dyeing group and alternative dyeing group compared with before dyeing as an average of 47% and 28%, respectively, and TL for conventional dyeing group was higher than alternative dyeing group as an average of 1.2 fold. After dyeing, TEM was significantly increased in both conventional dyeing group and alternative dyeing group compared with before dyeing as an average of 192% and 76% respectively, and TEM for conventional dyeing group was significantly higher than alternative dyeing group as an average of 1.7 fold. Therefore, alternative dyeing application was induced to lower lymphocyte DNA damage than conventional dyeing application, and TEM was appeared to be a more sensitive tool for the measurement of lymphocyte DNA damage than TL in this study.

후복막섬유증 5례의 임상적 고찰

정충식,김수현,안병수,심대성,박도영,김철성,장대수 조선대학교 1994 The Medical Journal of Chosun University Vol.19 No.1

Retroperitoneal fibrosis is a fibrotic process of the retroperitoneum that frequently produces ureteral obstruction. It can occur as an idiopathic disease or in association with various non-malignant and malignant condition. In the early phase of the retroperitoneal fibrosis ; symptoms originate from the disease process itself, while in the late state the clinical features represent the effect of obstructive uropathy and renal failure. Treatment consist of steroid therapy, urinary diversion and ureterolysis with jntraperitonealization or lateralization or wrapping with omentum. Herein we present 5 cases of retroperitoneal fibrosis.

정상 관동맥을 가진 심장 점액종 환자에서 발생한 급성 심근 경색증 1예

이정민,이현승,전은정,윤호중,정욱성,오용석,김철민,김재형,최규보,홍순조,이교영,심상인 대한순환기학회 1998 Korean Circulation Journal Vol.28 No.9

성인간호학회지 논문(1989-2000)의 내용과 경향 분석

서문자,김소선,송미순,이명선,오의금,신경림,김옥수,이숙자,이영자,오효숙,정재심,김철규 성인간호학회 2001 성인간호학회지 Vol.13 No.4

"Journal of Korean Academy of Adult Nursing" has been published since 1989 and more than 330 articles have been published up 2000. We reviewed all the articles published in this journal to analyze the contents and trend of published articles and to find out the way of improvement both in quantity and quality of studies in this area. The results are as follows : 1) Ninety percent of articles were quantitative studies. Experimental design was used in 16.1% and quasi-experimental design was adapted in 73.6% of articles. Qualitative research were 10.3% of total articles reviewed. 2) Only 5.1% of articles described theoretical framework and 73.6% of experimentally designed articles included research hypotheses. 3) Among experimental studies, only one was true experimental studie design. Eighty nine point three persent had descriptive survey method among non-experimental studies. Amog the thirty four qualitative studies, phenomenologic(73.5%), grounded theory(14.7%), and ethnographic (11.8%) design were used. 4) Most of research subject were patients and few healthy people, healthcare worker, and patient family. 5) Psychosocial data collection method which used questionnaire were 53.7% and interview. physical measurement, observation were used in 22.8%. 8.2% 5.4% of articles respectively. 6) Total number of keywords were 692, and average number of key words per article was 2.2. Health-related keyword was the most frequently used according to four metaparadigm of nursing (human, health, nursing, and environment). Environment related keyword was rarely appeared. The number and quality of nursing research in "Journal of Korean Academy of Adult Nursing" have been improved continuously. It is difficult to find out special trend or characteristics which is unique in this journal because of relatively short history of adult nursing studies. This review study was performed to analyze adult nursing studies only in the view of quantitative aspect, but it is needed to analyse qualitatively to find philosophical or theoretical trend in nursing.

Effect of the Metabolic Syndrome on Outcomes in Patients Aged <50 Years Versus >50 Years With Acute Myocardial Infarction

Kim, Inna,Kim, Min Chul,Sim, Doo Sun,Hong, Young Joon,Kim, Ju Han,Jeong, Myung Ho,Cho, Jeong Gwan,Park, Jong Chun,Seung, Ki-Bae,Chang, Kiyuk,Ahn, Youngkeun Elsevier 2018 The American Journal of Cardiology Vol.122 No.2

<P>The presence of metabolic syndrome (MS) is associated with an increased risk of cardiovascular disease morbidity and mortality. Moreover, data are lacking on the association of MS with clinical outcomes in young adults with acute myocardial infarction (AMI). This study was a retrospective analysis of 2,082 patients with AMI who underwent percutaneous coronary intervention. The term young was defined as age <B><</B>50 years. The prevalence of patients aged <B><</B>50 years was 18.4%. Among those patients, 43.4% had MS. The highest incidence of long-term major adverse cardiac and cerebral events was in old patients without MS (30.7% in young patients with MS, 22.2% in young patients without MS, 38.4% in old patients with MS, and 40.4% in old patients without MS, p <0.001). However, recurrent AMI (re-AMI) was the highest in young AMI patients with MS (4.8%, 1.4%, 2.1%, and 1.5%, p = 0.035, respectively). In Kaplan-Meier curve, young AMI patients with MS tend to have highest incidence of re-AMI (p = 0.050). The presence of MS in young AMI patients was an independent predictor of 6-year major adverse cardiac and cerebral events (hazard ratio 3.320, 95% confidence interval 1.073 to 10.283, p = 0.038) and re-AMI (hazard ratio 7.782, 95% confidence interval 1.290 to 45.298, p = 0.022). In conclusion, almost half of young patients with AMI had MS. The young AMI patients with MS had the highest incidence of re-AMI compared with the other groups. Aggressive pharmacological intervention and lifestyle modification are needed for the management of AMI in young patients with MS.</P>