국립공원 관리를 위한 해양생태계 장기 모니터링 프로그램의 발전 방향

이채린(Chae-Lin Lee),유재원(Jae-Won Yoo),정병관(Byungkwan Jeoung),김창수(Chang-Soo Kim),안동식(Dong-Sik Ahn),김성태(Sungtae Kim),성은주(Eun-Ju Sung),김성현(Sung-Hyun Kim),정수영(Su-Yeoung Jeong),박영석(Young-Seuk Park) 국립공원연구원 2021 국립공원연구지 Vol.12 No.2

생태계 변화의 모니터링은 효율적 생태계 관리를 위한 기초 정보 수집을 위해 중요한 과정이다. 많은 생태 현상과 그 과정은 오랜 시간에 걸쳐 진행되므로 국립공원의 지속적인 보전 및 효율적 관리를 위해 생태계 모니터링은 장기적으로 이루어질 필요가 있다. 본 연구는 국내외 장기 모니터링 프로그램 사례 분석을 통해 성공적인 장기 모니터링을 위한 방법으로써, 최적화된 모니터링 설계, 표준화된 운용방안 마련, 인적 자원 및 DATA 관리 체계 수립, 안정적인 재정 마련 및 후속지원 등을 제시하였다. 이를 바탕으로, 현재 10년 넘게 수행되고 있는 ‘HS호 유류유출 사고 해역 장기 모니터링 프로그램’의 발전 방향으로 적응형 모니터링 방식이 적용된 표준화된 프로토콜의 정립, QA/QC와 지속적인 자료 관리, 조사 항목의 연계성 강화 등의 구체적 방안을 제안한다. Monitoring ecosystem changes is an important process for collecting basic information for ecosystem management. Since many ecological phenomena and their processes take place over a long period of time, it is necessary to conduct long-term monitoring of ecosystems for the continuous conservation and efficient management of national parks. This study suggested an optimized monitoring design, standardized operation plan, human resource and data management system, stable financial preparation and follow-up support as methods for successful long-term monitoring through case analysis of domestic and foreign long-term monitoring programs. Based on this, it proposes specific measures such as establishing a standardized protocol with adaptive monitoring methods, continuous data management with QA/QC, and strengthening the linkage of investigation items in the development direction of the “HS oil spill accident long-term monitoring program” that has been conducted for more than a decade.

멀티미디어 응용에 적합한 화상 크기 변환에 관한 연구

朴商周,劉采浩 弘益大學校 科學技術硏究所 1997 科學技術硏究論文集 Vol.8 No.-

In multimedia applications, image data are very widely used. Usually, images are not stored in desired size. So resizing the original image is important and very frequently used technique in multimedia applications. Two methods are widely used. One is pixel repetition/dropping method, and the other is optimal resizing technique using interpolation and decimation method originally developed for sampling rate conversion. The former is very simple to implement, but it requires separate prototype low pass filter that needs to be designed for each different resizing factor. Pixel prediction method is newly proposed. This method basically combines the merits of pixel repetition/dropping method and optimal resizing method. It needs only one prototype low pass filter for any resizing ratio. This filter can be designed off-line, which reduces the complexity of computation significantly. Quality of the resized image by this method is almost identical to that generated by optimal resizing method.

화훼꽃말의 표준화를 위한 화훼꽃말의 종류와 유래에 관한 연구

박윤점,허북구,서춘순,송채은,정주연 韓國植物ㆍ人間ㆍ環境學會 1999 인간식물환경학회지 Vol.2 No.1

This survey was carried out to investigate kinds and origins of flower languages of common flowering plants and standardize them. A flowering plant has about 5 kinds of flower languages. Differnt literatures have different flower languages for the same flowering plant. So differnt flower languages need to have standard flower languages. Flower languages originate from shape(8.0%) > color(7.5%) > characteristics(4.4%) > mythology and legend(4.9%) > scientific name(2.3%) > flowering time(1.8%) > perfume(0.9%) > and others(1.7%). The origin of 68.5% of flower languages was found to be obscure.

자생식물과 도입 화훼명의 어원 및 유형 비교

백진주,박천호,정성혜,박윤점,송채은,허북구 韓國植物·人間·環境學會 1998 인간식물환경학회지 Vol.1 No.2

This study was carried out to survey origins of native plants and introduced flowers. Naming of native plants was divided into two types : one type is based on the internal properties of plants(shape, color, length, thickness, size) and the other type on such properties as person, animal, object, place and time which are compared to shapes and properties of plants. Names of native plants originate from shape > color > length > thickness > size > width > number, and also from characteristics > state > inhaitation place and place of origin > flowering and fruiting season > function and use. Prefixes were added in order to describe shapes and properties of plants in detail. About 50% of the names of the introduced flowers, originates from their shapes, about 15% from persons' names and about 13% from mythologies and legends. This shows that countries have different ways naming flowers from other countries and that survey of origins of flower names helps understand the characteristics of the flowers.

GPS를 이용한 2차로 고속도로에서의 추월시거 산정방법에 관한 연구

임채문,김정민,박영환,이주호 大邱大學校 科學技術硏究所 2001 科學技術硏究 Vol.8 No.2

This study applied GPS(global positioning system) into the field of traffic and transportation, measured overtaking mechanism at two lane highway. After the analysis of the collected data from the measurement, it was constructed passing sight model which is based on AASHTO(american association of state highway and transportation officials) model and; as the result, passing sight distance was computed. To accomplish this goal, speed and position information for leading and following vehicles were recorded under actual highway conditions. Each vehicle's distance, speed, and acceleration characteristics were calcuated using the passing algorithm equations proposes. The computed value of acceleration was 1.37m/sec2. This value was twice as large as the value calculated earlier(0.6m/sec2). This study proposed 326m as passing sight distance at maximum speed(80km/hr) in 88 Olympic highway.

狀態空間 模型을 利用한 道路交通量 推定에 關한 硏究

임채문,박영환,이주호 대구대학교 과학기술연구소 2000 科學技術硏究 Vol.7 No.1

The purpose of this study is to forecasting traffic volume of an express way and a national road through a model of state space as a time series model of multiple variables : they have a function of link with Taegu-Metropolitan as a commercial city and other cities. As a result of such study, I could construct a forecasting model about road traffic volume of the future. There is an efficient construction as a time series one in the model. I examined the significance of data for this study : the result was that the data served for a forecasting model about road traffic of the future by state space model. I also constructed a forecasting model about road traffic volume of the future by ARIMA model of single variable in order to analyze comparatively with others, and I compared the model with a model of state space. As a result of such study, I think that a forecasting model of traffic volume by state space model is able to consider social and economic alteration : the model as a forecasting model for traffic volume of the future is able to apply to a complex society.

도시간선가로의 공사중 교통류 특성분석과 적용성에 관한 연구

임채문,이주호,박영환,이영우 대구대학교 과학기술연구소 2001 科學技術硏究 Vol.8 No.1

Since almost roadway improvements are for the public convenient, negative effects by them are ignored. But now due to the increase of traffics demand and limitation of road supply, the positive management scheme and treatment plan on the constructions must be considered. The links operating interrupted flow are intend to yield the traffic between the out flow and inflow part effect zone of street section, we build the delay model using the time gap between under construction and not. And in the case of besides the traffic effect zone, that is street section's occupying construction. This work purpose on only setting up the capacity, delay models, and traffic effect zones as the basic study to find methods for minimizing the traffic delay work zones, and thus it is true that it is incorrPlete of the political, administrative reviews. In future there must be advanced the incomplete in this study, and groping for the various alternatives to minimize the traffic delay by the road occupying construction, with developing the various sets of detailed analyzing models, that is analysis on the street strength, crossroads geometrical forms of crossroads, public traffics, pedestrians, occupying types.

국내 주요호수의 육수학적 조사 (1) : 옥정호

김범철,박주현,이병진,허우명,황길순,최광순,채기숙 江原大學校 附設 環境硏究所 1998 環境硏究 Vol.15 No.-

The limnological survey of Lake Okjong was conducted for one year from June 1993 to May 1994 on the monthly basis. The loading of phosphorus, nitrogen and organic carbon from the watershed into the lake were monitored at the main in flowing sites. Secchi disc transparency , epilimnetic chlorophyll a, total nitrogen, total phosphorus concentration and primary production were in the range of 1.3~4.H m, 2.4~ 18.7 mg Chl/m³. 1.25~2.87 mg N/l, 7~65 mg P/m³, 325~2,113 mg C/m²/day, respectively. TN/Tl atomic ratio varled from 129 to 443. N/P ratio decreased in summer because phosphorus concentration was higher than in winter, while nitrogen did not vary much. The seasonal succession of phytoplankton was distinct. In winter and spring, diatoms, Aulacoseira granulata var. angustissima and Aulacoseira italica were dominant while cyanobacteria, Microcystis sp.,M. ichthyovlabe, Phormidium sp. and P.valderianum var. tenuis were dominant in warm seasons. The dominant zooplankton species were Thertmocyclops taihokuensis in warm seasons while Boosmina longirostris were dominant in cold seasons. The organic carbon, nirtogen and phosphorus content of lake sediment were 8.0~14.8, 0.59~0.71, 1.14~1.87 ng N/g, respectively. The sediment of Lake Okjong can be classified as oligohumic based on C/N ratio. The total phosphorus loading from the watershed and fishfarm were estimated to be 2.7g P/m²/yr, which far exceeded the critical loading for eutrophication. The organic carbon loading from the watershed and primary production were determined to be 998t C/yr, 6,348t C/yr, respectively. Most of organic carbon was contributed by autochthonous primary production of phytoplankton. Trophic state of Lake Okjong can be classified as eutrophic

A Study on the Habitat Use of the Released Red Fox for Daytime

Seung-Hoon Chae,Dae-Ho Jung,Dong-Ju Song,Seok-Beom Kim,Woo-Jin Jeong,Seung-Jun Jeong,Jin-Seok An,Min Kim,Park Yung Chul 강원대학교 산림과학연구소 2017 강원대학교 산림과학연구소 학술대회 Vol.2017 No.11

The fox (Vulpes vulpes Linnaeus, 1758) are an animal belonging to Genus Vulpes, Family Canidae, Order Carnivora. In Korea, the fox are currently in danger of extinction. To prevent extinction from 2011, a restoration project has been carried out centered around Sobaeksan National Park. The most important factor in the successful fox restoration project is the habitat environment of the target species. This study was conducted to be utilized as the data for collecting more data and selecting suitable releasing sites to analyze the environment of the fox released in 2017. A field survey was conducted using the daily coordinates that the fox stayed in the same place for more than 5 days out of the coordinates collected through CDMA attached to the fox during releasing. In the survey area, the daytime habitat environment of released foxes was identified through a site investigation of altitude, slope, incense, topography, land use status, vegetation, shelter type, etc. for a total of 23 coordinate points. However, a food resource survey, which is a major factor affecting foxes’ habitat use, was not performed. As a result of the survey, the use of daily habitat of the fox in 2017 shows they preferred sites of relatively low altitude (100 ~ 300m), gentle slopes (0 ~ 10 °), and sunshine-rich southward directions. It is because the fox seem to have secured their shelter mainly in the villages adjacent to the human houses or roads where vegetable foods and rodents as their main food can be found. This study tried to confirm a habitat utilization pattern of released foxes by investigate the type and their surrounding environment. The most important factor in choosing the range and habitat of the wildlife is the presence and amount of food resources. To this end, it is necessary to elicit more objective and reliable research results on foxes’ habitat use by conducting a further investigation on qualitative and quantitative food resources

정의적 특성이 수학적 문제 해결력에 미치는 영향

강호욱,노은환,박은진,송현준,이혜경,주채연 진주교육대학교 초등교육연구소 2005 科學敎育硏究 Vol.28 No.-

The purpose of this study is to provide some basic data which can be helpful for improving the methods of mathematics teaching-learning emphasizing the affective factors by investigating the effect on affective characteristics and mathematical problem solving ability of the students on the elementary school sixth grade. In order to achieve these purpose, the following research problems were set up for the present study: The results of this study are as follows: First, it was appeared that there was not any difference on attitude on mathematics, belief, self-confidence and the degree of mathematical problem solving ability by sex. Second, it was appeared that there was some statistical meaningful difference on attitude on mathematics, belief, self-confidence and the degree of mathematical problem solving ability according to high middle low ability on mathematics which the students think that they have. Based on the results of this study, I'd like to give some suggestions as followings to provide some help to teaching and learning mathematics. First, the succeeding studies are needed by selecting different population from the population of this study, classifying low-ranking factors consisting of affective characteristics differently from this study, compounding each low-ranking factors in various manners like using new items, etc. Second, the succeeding studies are needed in this part, because what mathematical belief teachers have mathematics can have an effect on students' mathematical belief and action as well as on teachers' thinking process and action in the class. Third, the succeeding studies are needed to develop concrete field study and program which can be helpful for improving actually students' affective behavior characteristics in school field.