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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 CO<sub>2</sub>-ton and the amount of carbon storage per unit area was 570.8 CO<sub>2</sub>-ton per hectare. Compared to 299.7 CO<sub>2</sub>-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.
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.
지상측량과 GPS 관측값을 이용한 결합 망 조정에 관한 연구
박운용,신상철,김진수 동아대학교 건설기술연구소 1999 硏究報告 Vol.23 No.2
Monitoring networks for tectonic studies and for large scale structures often require the combination of terrestrial and GPS observations. The advantage of GPS is its high precision and almost universal applicability, e.g. the connection of stations within the deformation zone to remote, geologically stable areas. The terrestrial techniques are well established and sometimes more precise, and allow to include stations with restricted GPS visibility, i.e. stations at the wall of a dam or in a narrow valley which cannot be determined by GPS. Till now normally the terrestrial and GPS observations are treated separately, a combination is done on the base of adjusted coordinates with or without covariance information. In this paper, for a rigorous combined adjustment of terrestrial and GPS observations the datumfree-concept is proposed. This concept is exact from the mathematical model of adjustment, adequate from the physical model of the observations and extremly flexible from the computational view point.
박운용,차성렬,김진수 동아대학교 건설기술연구소 2000 硏究報告 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, and 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 ±4.5㎜. 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∼09-05, 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.
박사영,이나영,이효진,이선영,최진혁,이순남,심강섭,성순희,한운섭 梨花女子大學校 醫科大學 醫科學硏究所 1996 EMJ (Ewha medical journal) Vol.19 No.3
Multiple primary cancer means that more that two cancers occur independently in an individual. Recently, the incidence of multiple primary cancer has increased with lengthened survival, of cancer patients, development of new diagnostic technique and increased clinical evaluation. We report a patient who had adenocarcinoma of stomach combined with squamous cell carcinoma of esophagus simultaneously.
LIS를 이용한 數値地圖와 數値地積圖의 重疊에 따른 正確度 分析에 관한 연구
박운용,곽두호,정성모,김정동 동아대학교 건설기술연구소 2000 硏究報告 Vol.24 No.1
The cadastral administration is centered around cadastral maps. It increasing that demand of the public for effective administration and higher quality of service through the development of application program of cadastral maps maintenance. Also, there has been much demands for the digital information of cadastral maps in other systems. Land Information System is the answer to meet with the public for effective administration and higher quality of service. In this study, The graphic and attribute data of cadastral maps were integrated on the same DBMS. Also, pointing out difficulties of database implementation and many experiences in the development of application program will be used effectively for further expansion of the automation of cadastral administration.
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.
박상수,서운석 韓國外國語大學校 外國學綜合硏究센터 中國硏究所 2004 中國硏究 Vol.34 No.-
The purpose of this research is to examine primary factors, presented in existing research, that influence social trust and analyze whether they exert significant influence on social trust in china. This Paper reveals that : First, in the relation of individual personality and social trust, altruism has negative effect(-) about social trust but the recognition of human nature has positive effect(+) about it. Second, environment satisfaction and the trust within the organization exerts positive(+) influence on it. Third, a level of an academic background, ideology, income have relation with a social trust level of groups divided by them. In the course of this research, I found that it is difficult to grasp effect factors of social trust and improving trust level at short period is more than that. And I come to conclusion that a suitable use of control memorial services by policy is helpful to elevate social trust.