한국 국립공원 산림생태계의 수목 탄소저장량 평가

이상진,박홍철,박관수,김현숙,이창민,김진원,심규원,최승운,Lee, Sang-Jin,Park, Hong-Chul,Park, Gwan-Soo,Kim, Hyoun-Sook,Lee, Chang-Min,Kim, Jin-Won,Sim, Gyu-Won,Choi, Seung-Woon 한국환경복원기술학회 2022 한국환경복원기술학회지 Vol.25 No.3

The purpose of this study is to quantitatively evaluate the amount of carbon storage for trees in forest ecosystem to support the foundation for carbon neutrality implementation in Korea National Park. It targeted 22 national parks designated and managed as national parks in Korea, and conducted research on forest trees in the terrestrial ecosystem among various natural and ecological carbon sink. The survey and analysis method followed the IPCC guidelines and the National Greenhouse Gas Inventory in Korea. The amount of tree carbon storage in the forest ecosystem of Korea National Park was confirmed to be about 218,505 thousand CO₂-ton and the amount of carbon storage per unit area was 570.8 CO₂-ton per hectare. Compared to 299.7 CO₂-ton per hectare, the average carbon storage per unit area of the entire Korean forest, it was found that about twice as much carbon was stored when assuming the same area. In other words, it means that the tree carbon storage function of the national park is about twice as high as that of the average tree carbon storage function of entire Korean forest. It has great implications in Korea National Park not only provides biodiversity promotion and exploration services as a national protected area, but also performs excellent functions as a carbon sink.

Rhizopus oryzae를 이용한 바이오 디젤 생산

박상무,홍승준,이기영,김동운 全南大學校 觸媒硏究所 2002 觸媒硏究 論文集 Vol.23 No.-

Biodiesel was produced from soybean oil and methanol using fermentation broth or lipase. Production yield was 62% and 53.5% with purified Rhizopus oryzae lipase and Rhizopus oryzae broth respectively. This yield of biodiesel was highest in case of water content of 20%

당뇨병성 다발성 신경병증에 대한 Thioctic acid의 유효성 및 안정성에 관한 연구

박철영,김영설,오승준,우정택,김성운,양인명,김진우,최영길 대한당뇨병학회 2001 임상당뇨병 Vol.2 No.1

연구배경: 당뇨병성 신경병증은 당뇨병 환자에서 흔히 나타나는 합병증으로서 임상 증상은 가볍거나 없을 수도 있지만 많은 경우에 통증, 작열감, 이감각증이나 무감각증 등의 증상을 동반하지만, 이에 대한 명확한 기전이나 뚜렷한 치료방법이 없었다. 최근에 신경세포내 산화성 스트레스의 증가로 신경세포의 손상이 발생된다는 기전이 주목을 받으면서, 당뇨병성 신경병증 환자에게 항산화제인 thiotic acid를 사용하여 좋은 효과를 관찰한 논문들이 발표되었다. 이에 저자들은 한국의 당뇨병성 다발성 신경병증 환자에서 thiotic acid를 경구 투여 후에 신경병증에 의한 효과 및 안정성을 평가하였다. 방법: 모든 대상 환자에게 Thioctic acid 600㎎ 을 1일 1회 아침 식전 30분에 8주간 투여하여 당뇨병성 다발성 신경병증에 대한 TSS의 개선여부에 대한 임상적 유효성 및 이상반응, 내약성, 실험실적 지표의 변화를 통한 안정성을 관찰하였다. 결과: 치료시작 전에 관찰한 환자가 호소하는 증상은 통증이 가장 많았으며 무감각, 작열감, 이상감각 순의 빈도를 보였다. 통증, 작열감, 이감각증, 무감각증의 평균 TSS는 1차 방문시 5.8± 1.8, 2차방문시는 4.4±1.7, 3차 방문시는 3.1±1.1로 사용기판에 따라 통계학적으로 유의한 증상의 호전이 있었다. 또한 TSS의 개선 뿐만 아니라 통증, 작열감, 이감각증 및 무감각증 각각의 증상도 치료전과 치료 4주 후 및 치료 8주 후를 비교했을 때 통계학적으로 유의한 증상의 호전이 있었다. TSS가 1차 방문 시와 비교했을 때 3차 방문시에 30% 이상 개선되었을 때(1차 방문시에 TSS 4인 환자는 2점 이상 개선되었을때) 임상적으로 의미가 있는 반응으로 간주하고 계산한 반응률은 71.3%였다. 결론: 당뇨병성 다발성 신경병중 환자에 대해 항 산화제인 thioctic acid 600㎎ 경구 투여요법은 당뇨병성 신경병증의 증상완화에 유용하며, 안전한 것으로 사료된다. Background: The study was peformed to evaluate the efficacy and safety of oral treatment with the antioxidant α-lipoic acid (Thioctcid??) in diabetic patients with peripheral polyneuropathy. Methods: Thioctacid?? 600㎎ was orally administered once a day for 8 weeks in 61 diabetic patients with peripheral polyneuropathy. Neuropathic symptom(pain, burning, paresthesia, and numbness) were scored before, and of 4 and 8 weeks after treatment. In addition, neuropathy by the physician and patients at the end of treatment. The primary endpoint was the response role after 8 weeks treatment, defined as an improvement in the total symptom score of at least more than 30%. Results: Efficacy was evaluated among forty-four patients who had completely the study according to the protocol and safety was evaluated among all of 61 patients who had taken the study medication. The response rate after 8 weeks was 77.3%. The total symptom score was significantly decreased of 4-week, and further decreased of 8-week. All the individual scores for neuropathic symptom were also significantly reduced of 4-week and further decreased at 8-week. Conclusion: These finding indicate that oral treatment with thioctacid?? at a dose of 600㎎/day for 8 weeks will improve peripheral polyneuropathy in diabetic patients, without causing any serious adverse events.

전신성 홍반성 낭창과 연관된 모야모야병을 보인 1예

이상목,이영주,박운규 대한신경과학회 1999 대한신경과학회지 Vol.17 No.3

중국 대형할인점의 마케팅 믹스요인과 소비자 만족도에 대한 실증분석

박상수,서운석 한국외국어대학교 외국학종합연구센터 중국연구소 2006 中國硏究 Vol.37 No.-

The purpose of this study is providing positive relevance between recognition of 6P's importance and consumer satisfaction in using foreign wholesale-warehouse. 6P includes Product, People, Presentation, Promotion, Place and Price. And also, this study makes it clear that the difference of each collective group between demographical characteristic and recognition of desire. Since, Chinese market is not a single market but a collective market by each separate market. To this purpose, this study using data of foreign wholesale-warehouse by making up a questionnaire to consumers who lives in Beijing, Shanghai and Tianjin. Throughout analysis, it verifies relevance between purchase satisfaction and Presentation and Price factors. And also, there are some differences in collective group.

GPS 기선벡터에 따른 댐 안정성 평가

박운용,차성렬,김진수 東亞大學校 建設技術硏究所 2000 硏究論文集 Vol.24 No.2

On this study, using the new technique with GPS which is more effective than conventional method and has the capability to detect the range in the order of ppm, the measurement for monitoring the deformation of a dam structure which provides agricultural water as well as living water. With the selection of the test field, an embankment which had been damaged and therefore was restored by mortar, GPS measurement was carried out to investigate the stability of the structure when pondage has maintained specific quantity. Therefore, the measurements of baseline vectors in reference network was done total three times. As results of the experiments, the standard deviation showed maximum ±4.5mm. In addition, not only did the deformation elements analyzed through dividing as triangular networks and then observing by GPS static methods present. Δ=1E-04-9E~05, γ=2E-04-9E~05 but also the deformation direction was estimated with the method which analyzes the differences among the deformation elements, such as north, east and height (Δn, Δe, Δu) transformed into local coordinate system. Consequentially, it is concluded that the dam should be need to closely safe examination.

JPEG 압축 이미지를 이용한 수치사진측량의 정확도

박운용,곽두호,정성모,김천영 동아대학교 건설기술연구소 2001 硏究報告 Vol.25 No.1

The aim of our research is to find out how digital photogrammetry responds to image compression. Specially, we wish to know if using JPEG image compression leads to loss of accuracy in DTM derived by digital methods. We first review JPEG compression, and since we use the PCI OrthoEngine Airphoto Edition v6.3 digital phtogrammetry software, we briefly review it's principle of principle of operation. We use knowledge of the effect of JPEG compression on the geometric accuracy of images to predict the influence of compression on DTM accuracy. We then compare this to estimates derived from actual measurements. We find that the actual effect om DTM accuracy is greater than predicted, and consistent with geometric error due to compression in the region of 0.33 pixel.

GPS/GLONASS 결합에 의한 차량의 이동궤적의 정확도 분석

박운용,이인수,곽두호,정성모 동아대학교 건설기술연구소 2000 硏究報告 Vol.24 No.2

Satellite visibility, accuracy, and availability were increased by the combined GPS/GLONASS. But, there are some problems such as differences in the time frame, differences in the coordinate datum, and the problem of solving carrier phase ambiguities in the combined carrier frequency solutions due to different GLONASS frequency. Therefore, the author will access the accuracy analysis of positioning using the combined PGS/GLONASS, and intend to study the characteristics of the combined GPS/GLONASS with considered the rate of data acquisition according to satellite visibility, elevation mask angle and kinematic relative position at the combined GPS/GLONASS.

한라산지역 용천수의 고도별 수질특성

박상운,윤정수 濟州大學校 基礎科學硏究所 1999 基礎科學硏究 Vol.12 No.1

This study purposes to elucidate the characteristics of altitudinal water quality variation and the evolutional processes of the spring water have been studied with the samples from 9 selected springs surrounding the Halla mountain region. Results of hydrogeochemical analyses in the 9 spring water show that Gwaneumsa is pollued with high hydrogen concentration. The spring waters from Yungsil, Namguksunwon, Sungpanark, Oremok and Gwaneumsa which springs situated lower than 1000m in altitude are highly concentrated of the chloride, sulphate, nitrate nitrogen and sodium, indicating that they are polluted by the pollution sources of the surrounding ground. The concentration of bicarbonate, sulphate and hydrogen increase when the precipitaion increases and the concentration of nitrate nitrogen, chloride and calcium decrease when the precipitation increase. The magnesium, sodium and electrical conductivity are nearly independent of the precipitation. Quality characteristics of spring water through piper's trilinear diagram except the Baegrogdam and Wiseorm spring water, the Halla mountain region consists of groups of sodium or potassium type and bicarbonate type.

95년도 주요 감정사례 및 실적에 관한 분석

박성우,이광영,김영운,최영남,이정필 內務部 國立科學搜査硏究所 1996 國立 科學 搜査 硏究所 年報 Vol.28 No.-