Investigation of the April 2000 forest fire damage in Kang-won Province, Korea, using RADARSAT data

Kang, Sung Chul,Seo, Jin Won,Lee, Tae Hee,Park, Sang Eun,Hong, Suk Young,Moon, Wooil M. 대한원격탐사학회 2000 International Symposium on Remote Sensing Vol.16 No.1

The series of forest Fires in Kangwon Province in April, 2000, were one of the mast serious ones in the Kang-won Province in recent years. The fire damaged areas are extensive and this paper investigates the utility of the satellite image data, particularly the RADARSAT SAR data. One of the main objectives of this study included evaluation of potential usefulness of the C-band RADARSAT data in the detection of forest fires in mountainous areas. Among several fire damaged sites, the area near Samchuk (city) was selected as the main study area and mufti-temporal RADARSAT(raw) data were acquired and the processed results were comparatively investigated with the IRS-1c data acquired shortly after the fire. To identify the burnt area from the undamaged background in the optical imagery, supervised classification and NDVI processing were carried out and tested with the IRS-1C data. For this experiment, several sets of raw RADARSAT standard and Fine mode (S4, F3, ascending orbit) data were processed and the final image was formed. In addition to the final image, sigma nought (σ°) was catnputed and compared for the burnt area against the undamaged areas. Because of the steep slopes in the study area and subsequent deviation from the flat surface scattering models, the fire scars in the sigma nought (σ°) image were not apparent. However, fire scars are slightly detected in the difference and ratio images obtained from the signal intensity data acquired at different dates (bath before and after fire). Texture analysis of the image data including the burnt areas were carried out using the Multiplicative Markov Random-Field (MMRF) algorithm. The detection of the fire damaged area from both standard mode and fine mode RADARSAT was not as straightforward as in optical data. However, Previous studies with ERS-1 S_AR and RADARSAT data in Indonesia and in the North American Plains indicate that C-band SAR data provide us with an effective tool for studying the forest fire damages. However, the application of C-band SAR data to the analysis of the forest fire areas requires careful processing of the data with realistic scattering models.

생쥐 2-세포기 수정란의 초급속동결

강만종,이철상,한용만,유대열,이경광 제주대학교 농과대학 제주도축산문제연구소 1991 畜産論叢 Vol.6 No.1

This study was carried out in order to investigate eggects of cryoprotectant concentration and equilibration time on survival of ultrarapidly frozen 2-cell mouse embryos Mouse 2-cell embryos. fol-lowing dehydration by exposure to DMSO and sucrose. were directly immersed into liquid nitrogen and thawed in 37℃ water. Viability was defined by development rate to the blastocyst stage after in vitro culture for 72 hours. The results are summarized as follows ; 1. When 0.25M of sucrose was added into the freezing medium a t various concentrations of DMSO and dilution medium, higher development rate of embryo was obtained in 3.0M DMSO conentrations (82.6%). However, When sucrose concentrations of 0.25 and 0.5M were added to the freezing medium with 3.0M DMSO and dilution medium, development rate of embryos were 81.7% and 24.1%, respectively. 2. In the equilibration time at room temperature, higher development rate was attained after short period of time(2.5min) in 3.0M DMSO +0.25M sucrose(85.9%). 3. The development rate of embryos at in vitro 2-celL in vivo 2-celL solution control and untreated control was 84.6%, 90.9%, 89.9%. and 89.7%. respectively.

동적하중을 받는 콘크리트보의 파괴에너지 해석

姜聲厚,柳井善,孫官哲 東新大學校 工業技術硏究所 1994 工業技術硏究 Vol.1 No.-

In this study, after concrete cylinders were made on the condition of varying water-to-cement ratio, and cured 80 days compressive strength and splitting tensile strength were performed and modulus of elasticity is obtained. The fracture energy was obtained by acting three point bending on the 80cm in length. This test involved static loading test and dynamic loading test. In this work, the new interrelation of the material constants was obtained clearly and the property of the mixture was inspected, including the relation between the fracture energy and all kind of the material constants.

지방자치단체 집행기관의 관리능력에 관한 연구 : 주민인식을 중심으로

강성철,김상구,홍미영 부산대학교 사회과학대학 1999 社會科學論叢 Vol.18 No.1

This study is aimed to analyze and evaluate the managerial capacity of executive organization in local government in terms of the resident's perception. The capacities of local government to activate local autonomy are as follows : political, financial, managerial capacity. Among these capacities, this study is defined to managerial capacity. The reason why analyzes the managerial capacity fo executive organization in local government is that it plays major role in activating local autonomy. The managerial capacity is defined as managerial efforts and means to attain goals of local autonomy in executive organization in local government. In this study, variable for analyzing the managerial capacity of executive organization of local government are as follows : the leadership of chief's in a local government, the capacity of local employees, the grasping and acceptance abilities of citizen's demand, managerial capacity of conflicts, policy making capacity, implementing capacity and inducing capacity of citizen participation. This study analyzed 294 persons (male : 152, female : 134, missing value : 8) as samples. The methods of analysis were used as frequency analysis. The results of this analysis are as follows : most residents estimate these capabilities of local executive organization very low. Especially inducing capacity of citizen participation and the leadership of chief's in local government are shown as lowest among other capacities. But residents evaluate managerial capacity of conflicts and policy making capacity higher than other capacities. This results of these analysis could be interpreted on the ground that elected chief of local government specially emphasizes to solve conflicting problems in local government. And the importances of variables composing managerial capacitites is that managerial capacities of conflicts is highest, and then policy making, acceptance capacity, employee capacities, but the importance of the inducing capacity of citizen participation is lowest. Taken together, although the local autonomy of Korea may established the institutional framework, it may not be easy to say that a local government works properly in local society. And so, to extend the managerial capacity of executive organization to activate local autonomy have to change authorities-oriented administration to client-orient one. And above all concerns of central government, local assembly, region communities are needed to enhance managerial capacity of executive organization.

우심방을 침범한 거대 비호지킨씨 림프종 1예

강상범,진승원,이은경,박용현,최용호,김용주,박준철,김재형,홍순조,최규보,권종범,원용순,박건,이은희 대한순환기학회 2000 Korean Circulation Journal Vol.30 No.4

Vision을 이용한 고정밀도 Solder Cream 인쇄기 개발에 관한 연구

강상철,허봉식,김민환 부산대학교 1995 生産技術硏究所論文集 Vol.48 No.-

The solder cream printer requires the high speed and high precision operation. In this paper, we developed a high precision solder cream printer using vision in PC-based developing environment. The most important part of this machine is the vision part that recognizes the fiducial mark of a PCB and that of a matal mask and repositions the PCB to match the former to the latter. In this paper, a multi-resolutional and hierarchial correlation method named HCR is explained as a high-speed matching method and a repositioning method and a repositioning data learning method are suggested and explained. Through experiments, it is verified that this machine has a 19 μm error tolerance in 5.578 seconds. Solder cream 인쇄기는 빠른 속도와 높은 정밀도를 요구한다. 본 연구에서는 PC환경을 기반으로 하여 vision을 이용하는 solder cream 인쇄기를 개발하였다. 이 장비의 가장 중요한 부분은 PCB의 기준마크와 metal mask의 기준마크를 인식하여 PCB를 metal mask와 정확히 일치하도록 위치보정하는 부분이다. 본 논문에서는 고속의 정합방법으로서 다해상도 영상표현법에 의한 단계적 정합방법인 HCR(hierarchial correlation) 방법을 설명하고, 또한 PCB의 패턴과 metal mask의 패턴이 일치되도록 위치보정하는 방법 및 이를 위한 데이터를 학습에 의해 구하는 방법을 제시하고 설명한다. 본 연구에서 개발된 시스템은 약 5.578초의 처리시간에 19μm이내의 허용오차를 갖는 것을 실험 및 분석을 통해 검증하였다.

지도 활용을 통한 IDEAL학습 지도안 사례

강철성 한국지리환경교육학회 2003 한국지리환경교육학회지 Vol.11 No.1

지도는 학습정보를 장기간에 걸쳐 기억하게 해주는 기능뿐만 아니라 자연현상 및 인문현상을 비교적 짧은 시간에 비교할 수 있다. 따라서 지도는 지리학습에서 매우 중요하고, 기본적인 도구라고 볼 수 있다. 이 논문은 지도를 통하여 문제해결 능력을 배양시킬 수 있는 IDEAL 기법을 원용하여 교수-학습 지도안을 작성하였다. 이 기법은 문제확인, 정의, 탐색, 실행, 적용의 단계를 거쳐 학습자가 당면한 문제상황을 해결할 수가 있다. 이 모형을 이용하면 교사들은 교수활동을 효율적으로 설계하고, 학습자의 이해를 보다 쉽게 증진시키게 될 것이다. 뿐만 아니라 학생들의 수행평가를 수행하는데 좋은 도구가 되리라 사료된다. Maps are vital tools for use by teachers and students in the geography classroom. The purpose of this article is to develop concrete teaching programs for teachers’lesson plan and to suggest the framework which facilitates teaching methods through the maps in geography. In the IDEAL method, the first step is identification of the problem. In the classroom, problem recognition and identification are often aleady done for the students. The next step is definition of the problem. After the problem is defined, the next step is exploration of possible solution. Possibilities might range from working backward to using metaphors to brainstorming. After exploring possibility strategies, problem solver act on their ideas and look for the effects of their actions on the problem. Inherent in successful problem solving are certain predispositions representing values and attitudes that can be encouraged, modeled, and fostered by teachers. In this study, I develop geography lesson plan for the IDEAL method which is necessary to help students understand more easily. I think that this article can be a good tool for geography teachers who are going to evaluate performance assessment.

HgCdTe 적외선센서의 개발현황

강상구,이민영,양기영,이희철 경북대학교 센서기술연구소 2002 센서技術學術大會論文集 Vol.13 No.1

20세기의 명 디자인과 그 광고

강성철 용인대학교 조형연구소 2000 조형논총 Vol.5 No.-

Last 100years, which were begun in 1900 and ended in 2000, were the century of the industrialization and the manufacturing industry. During this period, there were lots of good-designed products that made human life affluently. Some of them present being re-designed continually with same function and purpose, not the present of totally new technical function with. For example, cars have re-designed keeping their functions, conveniences and show new models, as vechicles. There have been new ideal products, of course, with a technical progress. (e.g. new products that are liked with the internet) These designs of products have interacted for the consumer and the product each other with their special symbol of the culture without their formally relationship. We can see these interactions with the consumer and the product throughout their advertisement copies. After several years, through study of these advertisements, we can identify a changed reflection of consumers. After Industrial Revolution from the UK, the meaning of the new future has understood with idea of the progress, which is covered as good meaning. We have to argue this point and this will be our legacies of the aesthetics of design for our designers in our days. This study will be guided the meaning of the design of the 21c.

스프린터 및 장거리 런너들의 단기 및 장기 기능성염 투여에 대한 산화 및 항산화제의 특성

강경빈,배성완,박동철,김학렬 한국스포츠리서치 2004 한국 스포츠 리서치 Vol.15 No.6

The aim of this study was examine a effects of acute and chronic Functional salt supplement in serum malonedialdehyde concentration as oxidants, and superoxide dismutase and catalase activity as anti-oxidants during maximal exercise In the acute functional salt supplement, Serum MDA concentration of ETG presented significantly decreased 1evels(p<.05) in immediately after exercise compared to rest, but STG was shown a greatly increased levels(p<.05), However, SCG was not shown a difference. In the difference of three group. It was shown a significant difference between ETG vs. STG and ETG vs. SCG(p<.01, respectively). In the chronic functional salt supplement, serum MDA concentration of ETG was shown a significantly low levels(p<.05) immediately after exercise post 12week supplement compared before supplement, wherease, STG presented increased levels in immediately after exercise compared to rest state before supplement, but it was not difference in post 12week supplement, As results, it was not difference in rest state between before and after, but significantly low levels(p<.01) in immediately after exercise post 12week supplement, serum MDA of SCG presented increased levels(p<.05) in immediately after exercise compared to rest before supplement, but it was not significant difference post 12week. Serum SOD activity of three group was riot shown a significant difference in immediately after exercise compared to rest, before and after 12week supplement, Also, it was not difference between before and after supplement. However, serum SOD activity was proved a significantly high levels in ETG, compared to SCG in immediately after exercise before and after supplement. Serum CAT activity of ETG presented not difference in rest and immediately after exercise before and after supplement, but it was shown a significantly high levels(p<.05) in immediately after exercise after supplement compared to before supplement, However STG was not difference, serum CAT activity of SCG presented significantly high levels(p<.05) in immediately after exercise after 12weeks.