Development of Environmental Education Programmes on Trees and Forests

Youn, Yeo-Chang 서울대학교 농업개발연구소 2000 농업생명과학연구 Vol.4 No.-

This research was carried out as a UNDP national project (Project number ROK/98/005 project period 1998.9-2000.12). The project was formulated and carried out by the direction of Professor Yeo-Chang YOUN with the following objectives: 1) Improvement of understanding on the present status of environmental education on trees and forests 2) Development of the programs of environmental education on trees and forests 3) Development of the self-guiding programs of environmental education on trees and forests 4) Development of the guidebook of environmental education on trees and forests 5) Establishment of communication networks for teachers, operators, and related groups.

연구논문 : 북한 미디어에 나타난 기후변화 프레임: 로동신문과 민주조선을 중심으로

박미선 ( Mi Sun Park ),윤여창 ( Yeo Chang Youn ),이효원 ( Hyo Won Lee ) 한국환경정책학회 2013 環境政策 Vol.21 No.4

Media define and interpret problems and recommend the treatment to them in environmental communication. This function of media is named as ``framing``. This paper aims to investigate how the issue of climate change as a global environmental issue has been communicated at the nationalmedia, using the theory ofmedia frame. In particular it focused on the case of North Korea. For media analysis, ‘Rodong Shinmun’ and ‘MinjuChosun’ as twomajor newspaperswere selected. The articles carrying terms of ‘climate change’ and ‘global warming’ in the title of articles were selected from1990 to 2012. The published data, places of events, cited speakers, different interest groups as victims, causers and problem solvers were coded and analyzed. Consequently the research results show four features of media frames on climate change in the North Korea. Frist, the selected articles includedmore foreign events and phenomena than the domestic. Second, governmental agencies, politicians, international organizations and scientists were represented as major speakers in the selected articles. In particular, instructions by Kim Il Sung and Kim Jong Il occupied the half of the statements by domestic speakers. Third, the diagnostic frame with description of victims and causers was dominant in the selected articles. Since 2007 the prognostic frame with representation of problem solvers was distinctly formed. Fourth, Rhodong Shinmun represented more various voices of the actors and interest groups as victims, causers and helpers to the problemof climate change thanMinju Chosun.

북한 연료림 조성의 사회 · 경제적 분석

윤여창 서울대학교 농업개발연구소 2001 농업생명과학연구 Vol.5 No.-

This study was carried out to analyze the necessity, the present condition and the economic feasibility of fuelwood plantation in North Korea. The status of fuelwood consumption was reviewed and the necessity of fuelwood plantation were estimated on the basis of the energy supply-demand structure and the mass media reports of North Korea. The area necessary to meet the fuelwood demand of all rural residents was estimated and the economic validity of fuelwood plantation was tested through net present value, internal rate of return and B/C ratio analysis. It can be concluded that North Korea has been faced with the severe shortage of energy due to the nature disasters and the economic structure problem. Since the energy supply is not sufficient, some parts of urban region as well as entire rural one has used fuelwood for cooking and heating. In North Korea fuelwood is utilized even for transportation fuel. To increase an area of fuelwood plantation, North Korea administration has tried to mobilize the entire society by strengthening and reorganizing governmental system. The fuelwood plantation is economically feasible, especially when investment is put in before North Korea would be changed into opened country better than after North Korea would be done.

美國의 私有林支援 政策 硏究

石玄德,尹汝昌 한국산림경제학회 2003 산림경제연구 Vol.11 No.1

미국의 사유림관리에 있어서 타용도 전용이 가장 큰 문제이다. 따라서 미국의 사유림 지원정책의 주요 목적은 사유림의 타용도 전용을 막기 위한 것으로 교육, 기술지원, 자금지원 등 세가지 주요 정책수단을 이용하고 있다. 사유림지원 프로그램은 약 10종류가 되는 데 이중 Forest Land Enhancement Program(FLEP) 과 Forest Legacy Program(FLP) 이 가장 중요하다. 그 외 다른 프로그램은 임업 이외의 부문에서 지원되고 있어 지원정도가 많지는 않다. 사유림 지원제도를 관리하는 주요 행정부는 산림청이고, 자연자원보전청은 사유림 보호와 직접적으로 관련된 지원제도에 대해서만 관리하고 있다. Since the vast landscape of American forests is increasingly threatened by the rising demand of commercial and residential uses, the major interests and goals of policies for the privately owned forests in US are protecting them from converting for oher uses. In order for protecting privately owned forests, the American Government uses three major tools; education, technical assistance, and financial aid. Two major aiding programs-Forest Land Enhancement Program (FLEP) and Forest Legacy Program (FLP)-are considered as the heart of aiding programs for the privately owned forests among more than 10 programs. Other aiding programs such as Conservation Reserve Program(CRP) can be available for the privately owned forests although the forest can not be the major objects for aiding. Forest Service under the USDA has been the major government body of administrating policies for the private forests, while NRCS(Natural Resource Conservation Service) deals with a part of them, mainly protection policies of the private forest.

대체 소화제의 열역학적 물성 비교

김재덕,여미순,이광진,이윤우,장윤호,노경호 한국화재소방학회 2004 한국화재소방학회논문지 Vol.18 No.1

몬트리올 의정서에 의해서 규제받는 CFCs와 Halon의 대체 물질인 HFC-23, HFC-125, HFC-227ea, HFC-236fa와 불활성 화합물 Ar, N₂, CO₂의 열역학적 물성인 포화압력, 밀도, 엔탈피, 점도를 비교하였다. 본 연구에서는 소화제의 물성을 문헌값을 온도의 함수로서 표시하였다. HFC화합물의 열역학적 물성은 Halon-1301과 비슷하게 나타내었다. 불활성 화합물은 주로 혼합물로 이용되지만, 불활성 화합물의 물성은 Halon-13O1에 비하며 바람직하지 않았다. For CFCs and Halons regulated by Montreal Protocol and their alternatives of HFC-23, HFC-125, HFC-227ea, HFC-236fa and the mixtures of inert gases of Ar, N₂ and CO₂, the thermodynamic properties of saturated pressure, density, enthalpy and viscosity were compared. In this study, the data from literature were expressed as a function of temperature. Thermodynamic properties of HFC compounds were similar to those of Halon-1301. Inert gas was mainly used as a mixture, but the physical properties of the inert gas does not have the favorable advantages over those of Halon-1301.

地域住民을 고려한 山林管理方案에 관한 硏究 : 서울대 南部演習林을 중심으로 Focused on the Southern Experimental Forest of Seoul National University

孫喆鎬,尹汝昌 한국산림경제학회 2002 산림경제연구 Vol.10 No.2

지역주민을 고려한 산림의 효율적인 관리를 도모하기 위하여 서울대 남부연습림을 중심으로 인근 지역주민들의 대학연습림에 대한 인식 및 관계를 파악하고 이를 토대로 향후 대응방안을 제시할 목적으로 본 연구를 시작하였다. 연구결과, 지역주민들 가운데 대학연습림에서 직접적인 소득을 얻지 못한 사람의 경우 대학연습림에 대하여 부정적인 인식 혹은 무관심한 태도를 보이고 있고, 지역내 장기적인 거주자일수록 대학연습림에 대한 부정적인 시각을 갖는 것으로 나타났다. 그리고 차츰 지역주민의 의식이 변화하고 외지인들의 유입이 증가하면서 대학연습림에 대한 개발의식 및 이요용구가 지역사회에 퍼져나가는 상황에 놓여있어 대학연습림의 토지에 대한 이용요구 등 제반 요구사항이 급증할 것으로 판단되어 장기적인 대책수립이 마련되어야 할 것으로 여겨진다. 따라서 지역사회에서 대학연습림에 대한 지역주민들의 부정적인 인식을 개선하기 위해서는 대학연습림의 본래의 목적 및 그 의미를 지역주민들에게 홍보할 뿐만 아니라 대학연습림 관리에 주민참여를 적극 유도할 수 있도록 주민과 대학연습림과의 관계창구, 즉 대학연습림의 관리를 위한 지역주민과 지방행정관서 그리고 대학연습림으로 구성된 대학연습림 장기발전 협의체의 구성이 요구된다. This paper aims to identify how residents recognize university experimental forest and what kind of relationship is between residents and that, and also to take a management scheme of that. As results, residents who have not got an income from the university experimental forest take a negative or indifference recognition to the effect of that on regional society, and inhabitants been lived there for long time have more negative one. Recently, residents' demand of using that is increasing due to changing residents recognition and increasing immigrants into region. Therefore, The administration of university experiment forest has to organize a conference group for long-term development of university experimental forest, which is, composed the residents, region officer, and then to contact among them.

패혈증 백서 모델에서 비타민-C의 효과

이중의,신상도,표창해,서길준,정성은,윤여규 대한응급의학회 1999 대한응급의학회지 Vol.10 No.4

Background : Multi-organ failure from sepsis is very lethal disease entity, which is suspected to be caused by activated inflammatory cells. Inflammatory cells activated by endotoxins generate oxidants and cytokines such as TNF-α and IL-6, which in turn stimulate macrophages and neutrophils. Augmented inflammation makes an organ-injury deteriorate into an organ-failure, which may progress to multi-organ failure. This study is designed to evaluate the therapeutic effects of vitamin-C, a scavenger of oxidants, in sepsis. Methods : Male Sprague-Dawley rats were divided into 3 groups : a control group, a group injected intrapetoneally with LPS(lipopolysaccharide), and a group injected intraperitoneally with LPS and vitamin-C. Each eight rats were sacrified 24 hours and 48 hours after injection, and samples of the blood, the liver and the lung were obtained. Biochemical assays of TNF-α level in the blood and malondialdehyde(MDA)level, catalase activity and nitric oxide synthase(NOS)activity in the liver and the lung tissues were performed. Results : Serum TNF-α level, tissue lipid peroxidation and tissue i-NOS activity were dramatically increased, and tissue catalase activity was exhausted rapidly in sepsis. High dose vitamin-C administration decreased serum TNF-α level, tissue lipid peroxidation and tissue i-NOS induction, and protected against catalase exhaustion. Conclusion : high dose vitamin-C therapy was proved to have definite antioxidant effect in septic condition.

An Econometric Analysis of the Korean Pulp and Paper Industry

Yeo Chang Youn 한국산림과학회 1991 한국산림과학회지 Vol.80 No.1

The Korean pulp and paper industry is facing a rapidly changing commercial environment with reductions in import tariffs, revaluation of the domestic currency, and a fast growing economy. This study has three objectives : first, to understand the Korean pulp and paper industry and market structure : second, to measure quantitatively the behavior of each participant in the market in order to build a simulation market model ; and third, to simulate the impact of changes in exogenous variables such as GDP, import tariffs, and the exchange rate. The Korean pulp and paper industry has developed as an import substitute industry with strong support from the Government, primarily in lieu of high tariffs on foreign products and price-support regulations for the domestic pulp mill, Thus, some sectors of the domestic pulp and paper market are less competitive. The Korean paper industry depends heavily on foreign suppliers for their fiber requirements. This lack of self-sufficiency is due mainly to the poor forest resource of the country, a condition that will not change in the near future, considering both rising labor costs and rough terrain of the forestlands. The demand for paper was found to be inelastic with respect to its price and to the price of substitutes, while the demand for paperboard is elastic with respect to its price. The supply of both paper and paperboard was found to be elastic with respect to price and cost, while that of paperboard is more elastic than paper. The demand for both pulp and wastepaper is inelastic with respect to their prices. And the supply of domestic pulp and wastepaper is inelastic with respect to their prices. The Korean pulp and paper industry has grown with the rapidly growing demand. This was confirmed by the GDP elasticities of paper and paperboard being greater than unity, and by the investment decision model estimated. However, this may not continue to be true in the future if competition from foreign producers becomes more intensive. The result of scenario analysis indicates that the Korean paper and paperboard market will become more competitive, and may provide more opportunities for international trade.

Changes in the Clinicopathological Characteristics and Outcomes of Thyroid Cancer in Korea over the Past Four Decades

Cho, Bo Youn,Choi, Hoon Sung,Park, Young Joo,Lim, Jung Ah,Ahn, Hwa Young,Lee, Eun Kyung,Kim, Kyung Won,Yi, Ka Hee,Chung, June-Key,Youn, Yeo-Kyu,Cho, Nam Han,Park, Do Joon,Koh, Chang-Soon Mary Ann Liebert 2013 Thyroid Vol.23 No.7

Development of Interdisciplinary Education Program for Sustainable Environmental Management Education in the Undergraduate Course

Yeo-Chang Youn 한국환경경영학회 2010 한국환경경영학회 학술대회 Vol.2010 No.-