선내 위치인식을 위한 UWB 특성 연구

성주현(Joo-Hyun Seong),이성근(Sung-Geun Lee),김윤식(Sung-Geun Lee),류길수(Keel-Soo Rhyu),서동환(Dong-Hoan Seo) 한국마린엔지니어링학회 2012 한국마린엔지니어링학회 학술대회 논문집 Vol.2012 No.10

임분구조 조정에 의한 평창지역 천연 활엽수림의 이단림 조성 방안

성주한 ( Joo Han Sung ),이영근 ( Young Geun Lee ),박고은 ( Ko Eun Park ),신만용 ( Man Yong Shin ) 한국산림과학회 2015 한국산림과학회지 Vol.104 No.3

This study was conducted to provide a method of establishing two-storied forests by the adjustment of stand structures in natural deciduous forests of Pyeongchang area. Three permanent sampling plots of 0.09 ha were established in study site and some tree variables were measured in each sampling plot before the treatment of two-storied system. Stand attributes and stand structures before treatment were estimated based on the data measured in sampling plots. The results indicate that the current stand status is different from typical stand structures of two-storied forests. A simulation technique was applied to predict stand attributes and stand structures after the treatment of two-storied system. Results suggest that significant time is required to accomplish target stand structures even after applying the treatment of two-storied system. Number of trees in the upper canopy class after treatment was predicted to be 170 trees/ha, which adequately meets the target of two-storied forests. It was predicted, however, that the lower canopy class trees has much less trees compared with the typical stand structures of two-storied forests. This problem could be solved with ingrowth of infant trees over time or by under-planting of tolerant species. It is confirmed that the target growing stock volumes of the upper canopy class should be approximately 150 m3/ha considering stand status after treatment. It is predicted that twenty years of conversion period is required to accomplish this goal. The changes in stand structures over time should be assessed based on stand inventory carried out every five years, and additional treatments for inducing two-storied forests should be applied if necessary.

가리왕산 일대 천연 활엽수림의 산림작업별 시업전후의 임분다양성 변화 평가

성주한 ( Joo Han Sung ),이영근 ( Young Geun Lee ),박고은 ( Ko Eun Park ),신만용 ( Man Yong Shin ) 한국산림과학회 2014 한국산림과학회지 Vol.103 No.4

This study was conducted to estimate the changes of stand diversity before and after applying threedifferent silvicultural treatments such as selection cutting system, two-storied system, and shelterwood system. Data were collected in the natural deciduous forests in Pyungchang of Gangwon Province, Korea. Ninepermanent sampling plots of 0.09 ha were established in the forests and the each of silvicultural treatments wasapplied to three sampling plots, respectively. Some tree variables were measured in each stand before and afterthe silvicultural treatments were applied. With these data, stand attributes were estimated in each stand beforeand after the silvicultural treatments. In this study, two different indices related to each of stand diversity indicessuch as contagion, DBH-difference, height-difference, and mingling were estimated and compared to analyze thedifferences of stand diversity among the stands before and after silvicultural treatments. As a result, total eightstand diversity indices were used to analyze the differences among structures of stands managed by three differentsilvicultural treatments. Duncan``s multiple range test and t-test were then employed to statistically analyze thedifference of stand diversity among the stands. The results revealed that stand structures seem to be improved afterapplying the silvicultural treatments. There are significant differences in the stand diversity indices between beforeand after silvicultural treatments for each stand. According to the evaluation of stand diversity indices, it wasconfirmed that spatial structure of the stands was improved by applying the silvicultural treatments.

구두발표 6 분과 ; 삼림기상 / 산불 : 이상 기후에 의한 소나무와 잣나무의 피해

성주한(Joo Han Sung),오정수(Jeong Soo Oh),이명보(Myung Bo Lee),변재경(Jae Kyung Byun),이승규(Seung Kyu Lee) 한국농림기상학회 2001 학술발표논문집 Vol.- No.-

실시간 위치추정 시스템을 위한 CSS와 UWB의 성능비교

성주현(Joo-Hyun Sung),김종수(Jong-Su Kim),이성근(Sung-Geun Lee),류길수(Keel-Soo Rhyu),서동환(Dong-Hoan Seo) 한국마린엔지니어링학회 2012 한국마린엔지니어링학회 학술대회 논문집 Vol.2012 No.10

솔잎혹파리 침해에 따른 감수성수종인 소나무와 저항성수종인 리기다소나무에 있어서 광합성 및 엽의 색소변이에 관한 연구

이돈구,성주한 ( Don Koo Lee,Joo Han Sung ) 한국산림과학회 1984 한국산림과학회지 Vol.65 No.1

Susceptible trees of Pinus densiflora and resistant trees of Pinus rigida following pine gall midge (Tnecodiplosis japonensis Uchida et Inouye) attack were seasonally compared to examine the variation in needle growth and photosynthetic ability, respiration rate, chlorophyll contents, carotenoid and anthocyanin contents. Also, carotenoid and anthocyanin contents of larvae both from soil and from galled tissue were compared during March and September, respectively. The plantation damaged severely by this insect consisted mostly of 10-to 15-year old P. rigida and P. densiflora. The results obtained in this study were as follows: 1) The length of the infested needles of P. densiflora decreased by 48.1 percent compared with the normal needles, while that of P. rigida did 37.4 percent. 2) All of P. densiflora and P. rigida showed higher photosynthetic ability in normal needles than in infested needles. The maximum photosynthetic ability of P. densiflora was shown in mid-August, while that of P. rigida in mid-October. In contrast to that, respiration rate of infested needles was higher than that of normal needles in both species. The respiration rate of P. rigida was higher than that of P. densiflora. 3) P. rigida had higher total chlorophyll contents than P. densiflora. The total carotenoid contents tents in infested needles were higher than those in normal needles of both species. 4) Total carotenoid contents were generally higher in P. rigida than in P. densiflora during the growing season. The total carotenoid content (0.094㎎/g) in larvae from soil was similar to that (0.092㎎/g) in larvae from galled tissues. 5) Infested needles of both species showed higher anthocyanin contents than normal needles. Higher anthocyanin contents in galled needles were due primarily to its active formation stimulated by larval attack. Thus, reddish-brown coloration occurred only in galled needles of P. densiflora.

기후변화 시나리오에 의한 중부지방소나무의 연도별 적지분포 변화 예측

고성윤 ( Sung Yoon Ko ),성주한 ( Joo Han Sung ),천정화 ( Jung Hwa Chun ),이영근 ( Young Geun Lee ),신만용 ( Man Yong Shin ) 한국농림기상학회 2014 한국농림기상학회지 Vol.16 No.1

본 연구는 환경인자를 이용하여 우리나라에 생태권 역별로 분포하는 중부지방소나무의 지위지수 추정식을 개발하고 기후변화 시나리오를 적용하여 적지면적 및 적지분포를 추정하기 위해 수행하였다. 이를 위해 산림입지도와 전자기후도 및 기후변화 시나리오 RCP 4.5와 RCP 8.5를 사용하여 산림생산력에 영향을 미칠것으로 판단되는 19개의 기후변수를 포함한 총 48개 환경인자를 도출한 후, 최적 조합에 의해 지위지수 추정식을 개발하였다. 최종 생태권역별 중부지방소나무의 지위지수 추정식에는 각각 5~7개의 환경인자가 독립변수로 사용되었고, 지위지수 추정식의 설명력을 나타내는 결정계수는 0.32~0.46의 범위에 있는 것으로 분석되었다. 이 추정식은 모형의 평균편의, 정도, 표준 오차의 3가지 평가통계량에 근거하여 검증을 실시한 결과 비교적 지위 추정능력이 높은 것으로 판명되었다. 또한 본 연구에서는 생태권역별 중부지방소나무의 지위지수 추정식과 기후변화 시나리오 RCP 4.5와 RCP 8.5를 연계하여 시간 경과에 따른 중부지방소나무의 연도별 적지면적 및 적지분포의 변화를 추정하였다. This study was conducted to predict the changes of yearly productive area distribution for pinus densiflora under climate change scenario. For this, site index equations by ecoprovinces were first developed using environmental factors. Using the large data set from both a digital forest site map and a climatic map, a total of 48 environmental factors including 19 climatic variables were regressed on site index to develop site index equations. Two climate change scenarios, RCP 4.5 and RCP 8.5, were then applied to the developed site index equations and the distribution of productive areas for pinus densiflora were predicted from 2020 to 2100 years in 10-year intervals. The results from this study show that the distribution of productive areas for pinus densiflora generally decreases as time passes. It was also found that the productive area distribution of Pinus densiflora is different over time under two climate change scenarios. The RCP 8.5 which is more extreme climate change scenario showed much more decreased distribution of productive areas than the RCP 4.5. It is expected that the study results on the amount and distribution of productive areas over time for pinus densiflora under climate change scenarios could provide valuable information necessary for the policies of suitable species on a site.

창원시 재개발사업 추진단계별 갈등요인 분석에 대한 연구

이장우(Lee, Jang Woo),성주한(Sung, Joo Han),정상철(Jeong, Sang Cheol) 한국주거환경학회 2020 주거환경(한국주거환경학회논문집) Vol.18 No.1

It is frequent that the redevelopment project which is being promoted is delayed or the project itself is stopped due to the decline of the business due to the social phenomenon such as the deterioration of the manufacturing industry which plays a pivotal role of the economy, the deterioration of the construction market, the recession of the pre-sale market, low growth, low birth rate and aging. Redevelopment projects should emphasize resident consensus and cooperation above all. The high participation rate of union members is a driving force to speed up the project. However, since the private capital input and the business are composed of the residents, the unilateral project that lacks expertise, opaque business process, There is a constant conflict between the interests of business stakeholders due to sharp confrontation due to the unilateral designation of self-governing districts, excessive donation delinquency, frequent policy changes and regulations of government or administrative offices. As a result of the statistical test of this study, if the conflict is revealed in the first stage planning stage, the conflicts in the third stage execution phase become bigger and the overall conflict becomes bigger. This resulted in the delay of the redevelopment project, which in turn led to a deterioration in the profitability of the redevelopment project. The implications of this study are as follows. In this study, it is meaningful to identify conflicts through statistical verification and to suggest ways to improve such conflicts. In addition, it can be understood that the first stage of planning conflict and the third stage of conflict phase have the greatest impact on the overall conflict, and concrete solutions can be suggested by examining the causes of such conflicts. Lastly, it will be a great help to recognize the conflicts in the stages of the redevelopment project in Changwon City and prepare for the redevelopment project.

이산화탄소 포집 및 저장에 대한 대중의 인식과 수용도

이상일 ( Sang Ii Lee ),성주식 ( Joo Sik Sung ),황진환 ( Jin Hwan Hwang ) 한국환경영향평가학회 2012 환경영향평가 Vol.21 No.3

CCS (Carbon Dioxide Capture and Storage) is considered as the most effective counterplan in the mitigation of climate change. Even though the risk of leakage of CO2 stored in the geologic formation is very low, the public is expected to disagree with the initiation of a CCS project without proper management plans ensuring the safety. In this study, recognition of laypeople were surveyed about CCS, climate change, characteristics of carbon dioxide, storage concepts, ground pressure, the impact of carbon dioxide, and carbon dioxide for leakage. Thereafter the factors that could affect to recognition of CCS were analyzed by regression analysis. A survey was carried out to find out the public understanding and awareness about climate change and CCS. It is the purpose of this study to propose appropriate risk management strategies based on the findings from the survey.

도시개발사업의 사업방식별 리스크 요인의 상대적 중요도에 관한 연구 : 평택시 도시개발사업을 대상으로

이재성(Lee, Jae Sung),성주한(Sung, Joo Han) 한국주거환경학회 2020 주거환경(한국주거환경학회논문집) Vol.18 No.2

The purpose of this research is to examine the development risk factors through the step-by-step approach of urban development projects by project method, focusing on Pyeongtaek area. In the comparison by business method, the risk of only the exchange method is caused by problems in demand and supply that do not judge the business disruption and interest rate policy due to zoning without thorough feasibility review, and instability of the development project due to tax fluctuation, developer financial company, construction It was considered to be a signing of an agreement with and against adverse conditions. In other words, because the project implementer conducts the project without purchasing land according to the characteristics of the replotting method, it is because the zoning and cooperation with the business agency, financial company, and contractor are judged to be important. In addition, the risks of the adoption and use method are due to the inability to permit or delay due to the lack of review of the upper plan and the upper regulations, and the delay in the development business due to the lack of liquidity due to the loan regulation of the pre-sale due to the financial policy after the sale, and the wrong construction contract. saw. This is because the project operator takes a lot of funds in the early stages as a method of negotiation purchase or acceptance, and thus, when the project is prolonged due to incapacity or delay in licensing, changes in financial policy, and lack of liquidity, the effect of the risk factor is greatly affected. Because. Lastly, it was considered that the risk of mixed-use only was business disruption due to cancellation of designation due to incorrect designation and unforeseen unsold sale. In other words, because the business is conducted by classifying the installation cost of each infrastructure by designating it as a replotting method and a receiving method, many complaints are generated during the process, and if the project is canceled or delayed for a long time, the risk factor is greatly affected. Because it appears.