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THE VULNERABILITY ANALYSIS FOR BUFFER OVERFLOW USING CIL
Doo-Soon Park,Jae-Sin Hong,Su-Hyong Son,Kibom Kim,Hyungwoo Kang,Soonjwa Hong,Min Hong 한국멀티미디어학회 2006 한국멀티미디어학회 국제학술대회 Vol.2006 No.-
Over the past decade, the demands for building secure software have become a dominant goal for software development. Although great advances have been made in this area, the core problems of security vulnerability still exist. Buffer overflows are the most common source of security vulnerabilities in C program. To analysis these security vulnerabilities, we used a CIL (C Intermediate Language) that is written in OCaml (Objective Caml). We used well-known open test data such as Sendmail, Wuftpd, Bind, Perl on the Linux operating system. A C syntax is created to analyze the warnings and we implement the pushdown automata to check the generation of actual buffer overflows. But there was no actual buffer overflow during the source code analysis. Therefore, we conclude that the CIL does not provide the accurate buffer overflow measurement and an efficient new tool is essential for buffer overflow measurement.
프로농구 관람객의 관람동기에 관한 척도개발을 통한 마케팅전략
설민신(Min Sin Sul),박두용(Doo Yong Park),황순학(Soon Hak Hwang) 한국사회체육학회 2011 한국사회체육학회지 Vol.0 No.44
The purpose of this study is to allow many more spectators to participate, to develop pro-basketball, and to form infrastructure in spectators, by researching into participatory motive in pro-sports spectators and by developing measurement tool. Adult men and women in over 20 years old, who watch pro-basketball, were carried out questionnaire. The collected questionnaires included 227 people. The primarily research subjects were researched on the basis of the response contents in 212 people except 15 people whose response was insincere among these questionnaires. The secondary research was extracted samples by using the stratified cluster random sampling targeting spectators who directly visited pro-basketball. Questionnaires were 347 people. 325 people had become the finally analytical subjects except 22 people whose response was insincere among these questionnaires. Through the expert meeting, which was formed in order to develop a measurement tool based on the results through inductive analysis on participatory motive in pro-sports spectators, the questionnaire in totally 55 items was performed with 6 factors in "fun," "leisure activity," "removing stress," "event," "arena," and "association," and with individual item in each factor. In the exploratory factor analysis for examining the common volume between factors, 7 items were removed in the load volume with under .40. As a result of the exploratory factor analysis, it was developed into 22 items in 5 factors. 4 kinds of fit acceptance indices(GFI, CFI, NFI, RMR) were analyzed and researched by carrying out the confirmatory factor analysis as for whether 22 items in 5 factors are established relationship among sub-factor variables. The lower result was shown than the acceptance index in the measurement model on 22 items in initially 5 factors. Thus, the finally-modified model was suggested by removing leisure activity factor and 6 sub-items based on the reliability value and the regression coefficient value in individual item. As a result of this analysis, a research on measurement tool of a participatory motive in pro-sports spectators was developed 16 items in totally 5 factors for "fun," "leisure activity," "removing stress," "event," and "association,"
${\beta}-Ag_3SI$ 단결정막 전극에 관한 연구
신두순,이선천,Sin Doo-Soon,Seon-Cheon Lee 대한화학회 1984 대한화학회지 Vol.28 No.2
${\beta}-Ag_3SI$의 단결정을 만들어 막전극으로의 응용을 살펴보았다. 그 결과 할로겐 이온들에 대해 감응함을 알았고, 분리용액법과 혼합용액법으로 할로겐 이온들에 대한 선택계수를 얻어 이론값과 비교검토 하였으며, 전위시간 곡선으로 부터 이 전극이 유리 전극기구에 의해 전도함을 알았고, 넓은 pH 범위에서 전위가 일정한 값을 가짐을 알았다. 한편 분석화학에의 응용을 살펴 본 결과 할로겐이온의 혼합용액에서 좋은 지시전극으로 사용할 수 있음을 알았다 The single crystal ion-selective electrode,$ {\beta}-Ag_3SI/PVC-THF $membrane electrode has showed a linear potential response to the activities of iodide ion (10-1${\sim}$10-7M). The $ {\beta}-Ag_3SI$ membrane electrode was compared with AgI/PVC-THF membrane and copper metal plate membrane electrodes. In order to measure the selectivity coefficient of the electrodes toward $Cl^-$ and $Br^-$, the separation and mixed solution method were employed. The potential-time curve was obtained by the usual immersion technique and pH effect was also examined. The orders of selectivity for $Br^-$, $Cl^-$ and stability of response time are ${\beta}-Ag_3SI/PVC-THF $membrane > AgI/PVC-THF membrane > copper metal plate membrane. These electrodes could be used as indicating electrodes in the potentiometric titration of a single halide and mixed halides with the standard solution of silver nitrate.
홍재신(Jae-sin Hong),박두순(Doo-soon Park),홍민(Min Hong),이화민(Hwa-Min Lee) 한국멀티미디어학회 2008 한국멀티미디어학회 학술발표논문집 Vol.2008 No.2
u-Healthcare 서비스의 시작으로 병원에서의 치료로 그쳤던 과거의 의료 패러다임이 새롭게 변화하고 있다. 현재 우리나라는 인구 고령화와 만성질환의 증가로 고혈압과 같은 순환기계질환의 사망원인이 전체 사망원인의 9위에 위치하고 있다. 따라서 본 논문에서는 고혈압 관련 환자 데이터를 가지고 데이터마이닝을 통한 의사결정 시스템을 구축하여 고혈압 환자에 대한 처방 관리 시스템을 제공한다.
순차패턴과 연관규칙을 이용한 고혈압 환자 관리 시스템 개발
박남열 ( Nam Youl Park ),홍재신 ( Jae-sin Hong ),박두순 ( Doo-soon Park ),홍민 ( Min Hong ),이화민 ( Hwa-min Lee ),정영식 ( Young-sik Jeong ) 한국정보처리학회 2009 한국정보처리학회 학술대회논문집 Vol.16 No.1
최근 의료 패러다임은 치료에서 예방과 관리의 개념으로 변화하고 있다. 특히 우리나라 성인 인구 중 20~30%에서 발견되는 만성질환은 예방과 관리가 더욱 필요한 성인병이다. 본 논문에서는 만성 질환 중 지속적인 치료와 예방 그리고 관리가 필요한 고혈압 환자들을 관리하기 위하여 생체 데이터, 검진 데이터, 문진 데이터, 생활 습관 등을 이용하여 순차패턴 방법을 적용한 고혈압 환자에 대한 약제 처방 시스템과 연관규칙을 적용하여 고혈압 환자들에게 24시간 관리가 가능하도록 하는 고혈압 환자 관리 시스템을 개발한다.
3D/2D convertible projection-type integral imaging using concave half mirror array.
Hong, Jisoo,Kim, Youngmin,Park, Soon-Gi,Hong, Jong-Ho,Min, Sung-Wook,Lee, Sin-Doo,Lee, Byoungho Optical Society of America 2010 Optics express Vol.18 No.20
<P>We propose a new method for implementing 3D/2D convertible feature in the projection-type integral imaging by using concave half mirror array. The concave half mirror array has the partially reflective characteristic to the incident light. And the reflected term is modulated by the concave mirror array structure, while the transmitted term is unaffected. With such unique characteristic, 3D/2D conversion or even the simultaneous display of 3D and 2D images is also possible. The prototype was fabricated by the aluminum coating and the polydimethylsiloxane molding process. We could experimentally verify the 3D/2D conversion and the display of 3D image on 2D background with the fabricated prototype.</P>