• Proceedings of the Korean Institute of Information and Commucation Sciences Conference
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• 2022.05a
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• pp.259-261
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• 2022

Recently, malicious code is not a single technique, but several techniques are combined and merged, and only important parts are extracted. As new malicious codes are created and transformed, attack patterns are gradually diversified and attack targets are also diversifying. In particular, the number of damage cases caused by malicious actions in corporate security is increasing over time. However, even if attackers combine several malicious codes, the APIs for each type of malicious code are repeatedly used and there is a high possibility that the patterns and names of the APIs are similar. For this reason, this paper proposes a classification technique that finds patterns of APIs frequently used in malicious code, calculates the meaning and similarity of APIs, and determines the level of risk.

• Korean Journal of Heritage: History & Science
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• v.47 no.1
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• pp.4-17
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• 2014

The more income and free time people have, the more interest in cultural heritage they get to improve the quality of life. In light of this, Local governments put more effort to create colorful events using their cultural heritage resources, and the central government also starts to implement policies to enhance the value of cultural heritage. To keep those efforts on utilizing cultural heritage, however, several issues seem to be addressed in advance. Firstly, it needs to define the concept of cultural heritage utilization that could cover its current policy trend. Secondly, the utilization methodology should be categorized and classified. Therefore, the study for those issues should be carried out to utilize the cultural heritage efficiently and systematically. This study contains the current status of the relevant policies and projects; the trend and meaning of the utilization. And, in this study, the cultural heritage utilization was defined as all activities producing positive effects or influences by cultural heritage such as enjoying cultural heritage values and creating additional profits. Furthermore, the cultural heritage utilization was categorized according to several criteria; the value, the objective, and the type of cultural heritage utilization. Finally, the final part of the study includes proposals on the future policy direction of cultural heritage utilization.

• Applied Microscopy
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• v.32 no.1
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• pp.39-44
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• 2002

The ultrastructure of the fertilized egg envelope from dark sleeper, Odontobutis obscurus interrupta belong to Eleotrididae was studied using scanning and transmission electron microscopes. The fertilized egg of dark sleeper was of transparent, ellipsoidal, adhesive and demersal type, and there were numerous oil droplets in the yolk sac and adhesive filaments in the area of the animal pole. The outer surface of egg envelope was smooth with pore canal. The fertilized egg envelope consisted of two layers, an outer nonadhesive layer and an inner layer, consisting of seven horizontal low electron-dense lamellae alternating with the middle electron dense interlamellae. These ultrastructural characters of fertilized egg envelope from dark sleeper can be utilized in taxonomy of teleost.

• The Korean Journal of Mycology
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• v.37 no.1
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• pp.28-32
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• 2009

This study was carried out to investigate the genetic relationship of Pleurotus ferulae, an edible mushroom found on a medicinal plant, Ferula assa-foetida, in central China. The genetic relationships of 15 Pleurotus species strains, including five P. ferulae strains were analyzed. The strains were divided into seven groups at 80% genetic similarity level according to random amplified polymorphic DNA (RAPD) analysis. Four out of the seven groups consisted of two to four strains, while the other three groups consisted of three strains. In each of the three groups, the three strains were from each of three different Pleurotus species (P. cornucopiae, P. florida and P. sajorcaju). Other strains grouped together for genetic similarity were P. eryngii 26060 and P. fuscus var. ferulae 26065, three strains of P. ostreatus, and four P. ferulae strains (Bakdal, Awi, Cheonsan 1, and Yesan). However, Japanese Seolyi which belongs to P. ferulae and Heukpyung which belongs to P. ostreatus were together in a separate group.

• Fashion & Textile Research Journal
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• v.6 no.1
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• pp.102-108
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• 2004

The anthropometric measurement and the photometric measurement for have been conducted 358 children from 4 years old to 6 years old to design children's clothing. The characteristics of body type were grasped among total 44 measurement items according to the aging, being extracted seven factors from factor analysis. From cluster analysis among the seven factors the three body types were classified. Type 1 shows low fat body with a small figure and short upper body. The body has a round belly and waist. Type 2 shows the fattest body with an average height. The body has been backed with lower shoulders. Type 3 shows common fat body with a high height and a big figure. The body shows crooked round back with a big upper body and rising shoulders.

• Proceedings of the IEEK Conference
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• 1998.06a
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• pp.661-664
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• 1998

Since the region segmentation at high resolution contains most of viable semantic object contours in an image, the bottom-up approach for image segmentation is appropriate for the application such as MPEG-4 which needs to preserve semantic object contours. However, the conventioal region merging methods, that follow the region segmentation, have poor performance in keeping low-contrast semantic object contours. In this paper, we propose an image segmentation algorithm based on classified region merging. The algorithm pre-segments an image with a large number of small regions, and also classifies it into several classes having similar gradient characteristics. Then regions only in the same class are merged according to the boundary weakness or statisticsal similarity. The simulation result shows that the proposed image segmentation preserves semantic object contours very well even with a small number of regions.

• The Korean Journal of Zoology
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• v.34 no.1
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• pp.103-109
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• 1991

한국 특산종 Cobitis longicorpus (왕종개)의 주요 분류형질인 골절반의 지리적 변이를 조사하기 위하여 남한의 12개집단 205개체를 이용, 골질반의 type분석과 계수학분석을 실시하였다. Type분석 결과, 동해유입하천집단(영덕의 송천, 축산천, 경주 형산강, 울주 회야강)의 골질반은 등근 삼각형, 삼각형, 인각형으로 남해 유입하천 및 도서집단의 타원형, 반타원형, 부채꼴과 구별되었다. 골질반의 계수화분석 결과에서도 동해유입하천의 골질반 폭은 비교적 좁아 남해유입하천 및 도서지방과의 평균 CD값이 1.64로 새종 수준 이상의 차이를 보였다. 아울러 조사, 비교된 제 1 체측반문도 동해유입하천에서는 C. longicorpus의 특징이 전혀 나타나지 않아, 원기재질단인 섬진강집단을 포함한 남해유입하천 및 도서집단과 구별된 새종수준의 종분화가 이루어진 것으로 사료되었다.

• Convergence Security Journal
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• v.10 no.1
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• pp.19-27
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• 2010

Nowadays, the network's speed and internet technology are progressing rapidly but mill wares are occurring frequently through the Window's weak point. Since the malwares have various infection types and characteristics, it is hard to detect them by the virus vaccine and to cure them. This paper analyzes the type and characteristics of the mal ware and proposes a script technology that can find the location of the mal ware by the program and respond rapidly to the new kind of malwares.

• Proceedings of the Korean Institute of Information and Commucation Sciences Conference
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• 2011.10a
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• pp.923-926
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• 2011

본 연구에서는 움직이는 물체가 있는 비디오에서 검출된 전경 영상(실루엣)을 토대로 사람을 추적하고 추적된 사람의 실루엣 형상을 통하여 활동성을 인식하는 실시간 감시 시스템에 적용 가능한 사람의 행동을 인식하고 분석하고자 한다. 전경에서 블랍(사람)을 검출하는 방법은 기존에 연구했던 차영상을 이용하였고, 검출된 블랍을 대상으로 사람임을 판단하고 사람인 경우 검출된 블랍의 실루엣을 이용한 기존의 자세 추정 기법에 추가적으로 4가지 특징들을 추가하여 사람의 행동을 분석한다. 각 파라미터들은 임계치를 통하여 구분하였다. 본 논문에서는 사람의 행동은 크게 네 가지의 경우로 {Standing, Bending/Crawling, Laying down, Sitting} 분류한다. 제안된 특징 파라미터들을 추가한 방법은 기존의 실루엣 기반의 자세 추정 기법만을 사용하는 것보다 좀더 높은 인식율을 보여주었다.

• Journal of Korean Society of Archives and Records Management
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• v.2 no.2
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• pp.173-186
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• 2002

급변하는 정보화시대 속에서 우리가 잊고 있는 중대한 사실이 있다. 이는 우리가 많은 양의 정보를 가장 빠르고 작고 편리하게 담고자 치중하고 있는 지금, 그 주체가 되는 기록물, 즉 종이에 적혀있는 과거의 역사는 조금씩 우리 곁에서 사라져 가고 있다는 사실이다. 다시말하자면, 우리가 막대한 예산을 들여 이 기록물을 보존하는 목적으로 다른 매체로 전환시키는데 총력을 기울이면서도, 실제로 보존 대상인 이 기록물들에 대해서는 예산부족을 핑계로 삼아 등한시하고 있는 것이다. 기록물의 보존은 과거에도 중요하게 여겨졌고, 현재와 미래에도 계속 중요하게 여겨질 것이다. 그럼으로 우리는 과거의 기록이라는 메시지를 우리의 선조들로부터 전해 받아 우리의 다음세대에게 전해주는 메신저에 불과하므로 이 메신저의 역할에 대하여 정확하게 알아야 할 것이다. 또한 우리가 전해 받은 과거의 유물로 그대로 물어주기 위해서는 우리가 이 시대에 할 수 있는 최선의 일은 그 원형을 잘 보존시키는 일이다. 이러한 기록물의 소실은 그 기록물에 적혀 있는 과거 역사의 소실을 뜻한다. 따라서 앞으로의 보존과학은 과거에 대한 우리의 탐험을 뒷받침할 많은 정보들을 제시하여 줄 것이며 이러한 정보들이 체계적으로 분류되어 정리될 때 한국 종이 기록물의 보존 복원이 발전을 거듭할 것이다.