지리산국립공원 심원계곡 생태경관 복원공사지역 식생 변화

정태준 ( Tae-jun Jung ),김연경 ( Yeon-Gyeong Kim ),김영진 ( Young-jin Kim ),정명희 ( Myung-hee Jung ),박경희 ( Kyoung-hee Park ),신창근 ( Chang-keun Shin ),박선홍 ( Seung-hong Park ),김영선 ( Young-sun Kim ) 한국환경생태학회 2021 한국환경생태학회지 Vol.35 No.3

본 연구는 지리산국립공원 심원계곡 생태경관 복원공사지역의 모니터링 결과를 분석하여 체계적인 복원관리를 도모할 수 있는 기초자료를 확보하는데 그 목적이 있다. 복원사업이 완료된 2017년도에 식생 모니터링을 위한 조사구 12개소와 대조구 4개소를 설치하였고, 2017년과 2020년의 상대우점치, 종다양도지수, 유사도 등의 변화를 분석하였다. 복원사업 시 수목이 식재되었던 조사구는 종다양도지수가 0∼1.4552로 나타났고, 대조구와의 유사도지수에서는 1개 조사구가 1.32%로 분석된 것을 제외하고 모두 0%로 나타났다. 조사구의 종다양도지수 및 유사도지수가 매우 낮은 것은 복원사업 시 식재된 수목이 고사하거나 멧돼지 피해, 유수에 의한 침식으로 유실되는 등의 영향으로 판단되었다. 반면 복원사업 시 수목이 식재되지 않은 미식재 조사구는 종다양도지수가 0.9538∼2.3222로 나타났고, 유사도지수는 최대 8.33%까지 분석되었다. 국립공원 생태경관 복원공사지역의 복원 공법 개발을 위한 장기 모니터링과, 미식재 조사구의 천이과정을 분석하는 지속적인 연구가 필요하다. This study aims to obtain basic data for systematic restoration by analyzing the monitoring results of the Shimwon Valley Ecological Landscape Restoration Project area in Jirisan National Park. In 2017, when the restoration project was completed, 12 monitoring plots and 4 control plots were installed for vegetation monitoring, and changes in the relative dominance, species diversity index and similarity between 2017 and 2020 were analyzed. The species diversity index of the surveyed areas where trees were planted during the restoration project was 0-1.4552, and the similarity index with the control group was 0% except for one survey area at 1.32%. The very low species diversity index and similarity index in the survey areas were attributed to the loss of trees planted during the restoration project due to death, damage by wild boars, or erosion by running water. On the other hand, the species diversity index was 0.9538-2.3222 in the monitoring plot where no tree was planted, and the similarity index was analyzed to be as high as 8.33%. It is necessary to continue the long-term monitoring for the development of ecological landscape restoration methods in the national park and analysis of the succession in monitoring plots where no trees were planted.

건축적 프로그램과 움직임의 관계 및 의미에 관한 연구

박홍근,최윤경 대한건축학회 2003 대한건축학회 학술발표대회 논문집 - 계획계/구조계 Vol.23 No.1(계획계)

This study intends to understand the meaning and relation of movement generated from architectural space and program, a starting point of architecture proposed by contemporary architects. Movement is engendered by the spatial relationship of space rather than characteristic of individuation space. Spatial relationship of these space consists by the analysis and application of architectural program. Program is expressed by architect's unique style of analysis and application to modern society conceived. The research proposes that movement is intrinsic point of the architectural program and therefore the essence of architecture design procedure.

모델기준 적응제어에 의한 권선형 유도 전동기의 센서리스 속도 제어

박창근,이홍희 울산대학교 2001 공학연구논문집 Vol.32 No.1

산업현장에서 널리 사용되고 있는 권선형 유도전동기 제어 시스템은 외부 2차 저항 및 접점 손실로 인한 많은 문제점을 안고 있다. 본 논문에서는 부가적인 속도 검출기 없이 회전자 전류값을 이용하여 모델기준 적응제어(Model Reference Adaptive Control, MRAC)에 의한 권선형 유도전동기의 센서리스 속도 제어 기법을 제안한다. 간접 벡터 제어 방식에 의한 슬립주파수의 추정으로 사용되어지는 회전자 저항성분을 사용하지 않는 센서리스 알고리즘으로 인해 벡터 제어의 성능을 향상시킨다. 아울러 제안된 알고리즘은 컴퓨터 시뮬레이션 및 실험으로 타당성을 확인하였다. The wound rotor type induction motor(WRIM) control system which is widely used in the industry has many problems such as power loss due to external resistors and magnetic contacts. In this paper, the simple sensorless vector control algorithm for WRIM is proposed with the aid of MRAC(Model Reference Adaptive Control) theory by detecting rotor current without any additional speed detector. The vector control performance becomes better because the proposed sensorless vector control algorithm does not use the rotor resistance which is usually used to estimate the slip frequency in case of indirect vector control scheme. The proposed algorithm is verified by the digital simulation and the experiment. Key Words : WRIM, MRAC, Sensorless Vector Control, Rotor Resistance

생약추출물이 초기우식법랑질의 재광화에 미치는 효과

홍석진,손재범,박근형 대한구강보건학회 2003 大韓口腔保健學會誌 Vol.27 No.2

Since plant extracts have shown antibacterial activities, we hypothesized that herbal plant extracts would further increase cariostatic efficacies of the fluoride dentifrices.OBJECTIVE: The purposes of this study were to determine the minimum inhibitory concentration(MIC) of 9 different Korean herbal plants extracts on the S.sobrinus KCTC3308 and the efficacy of NaF-Silica dentifrices with or without the extracts. METHODS; The MIC of the methanol-extracts on the growth of S.sobrinus was determined. Subsurface caries lesions were prepared as previously described (Hong et al.J Dent Res. 77:843, 1998). After Vickers hardness number(VHN) were determined, the specimens were assigned to 9 test groups of 12 each by randornized blocks with VHN stratification. The specimens were tested for remineralization In vitro subsurface enamel lesion under cyclic microbial dynamic condition simulating in vivo carious fomation. The statistical significance of delta VHNs was determined by Students t-test and one-way ANOVA. RESULTS: The MIC of the Angelica gigas extract was 3 ㎎/㎖, as same as Akebia quinata and Camellia sinensis was 4 ㎎/㎖. However, all 9 extracts tested in the study demonstrated the synergistic cariostatic potential with known fluoride dentifrices. CONCLUSION: The NaF-herbal extract in silica base dentifrice significantly increased the cariostatic effect of NaF-Silica base dentifrice.

형질전환 담배 식물체에서 개똥쑥 Terpene Synthase의 발현

박성길,홍성현,최근원,이윤형,정인식 경희대학교 생명자원과학연구원 2002 硏究論文集 Vol.22 No.-

Expression of Artemisia annua terpene synthase in transgenic tobacco plants was examined. A full length cDNA encoding terpene synthase was cloned into pILTAB357 vector and transgenic tobacco plants were generated. The integration of this gene was analyzed by genomic DNA PCR and Southern blot analysis. The transcription of the terpene synthase gene in tobacco was confirmed by RT-PCR and northern blot analysis.

오존을 이용한 염색폐수처리에 관한 연구

박규홍,이상수,정근진 中央大學校 建設環境硏究所 1999 環境科學硏究 Vol.9 No.2

Ozone has a strong oxidized capacity next to fluorine, so it is used for oxidized dissolution of organism, decoloration, deodorization, fumigation, etc., regarding to water. In this study dye wastewater was treated strongly with ozone at 100g/hr and the flow rate through ozone contact tank was adjusted to 2l/min The experiment was conducted at three different conditions. In the first place, effluent and raw wastewater was ozonized and secondly raw wastewater was treated using AlCl₃ and PAC coagulation. The third condition was post-ozone treatment following PAC coagulation. As a result, pre-ozone treatment process with PAC coagulation and post-ozone treatment showed more efficient effluent quality than the previous conventional process.

1981~1985 學年度 全北大學校 新入生理解資料 分析 比較硏究

朴敬玉,金根坤,宋在鴻 全北大學校 學生生活硏究所 1986 學生生活硏究 Vol.14 No.-

LDI(LCD driver Ic)의 응답 시간을 향상시키기 위한 선행 강조 구동 회로 설계

박근형, 손홍희, 정인석 충북대학교 컴퓨터정보통신연구소 2008 컴퓨터정보통신연구 Vol.16 No.1

-본문참고-

On Some Properties of In-situ and Ex-situ Wh-phrases in Korean

Park,Hong-Keun 한국언어학회 2010 언어 Vol.35 No.1

전북 평야 수도작 농가의 담수직파 기술개발 방향 및 경제성 분석

조홍기,신용규,박정근 全北大學校 1995 論文集 Vol.39 No.-

New technology plays a role of stimulator in releasing the constraints on growth imposed by resource endowment in any society. In an economy with high population pressures and limited land, increases in output depend on the development of land-saving technology, that can release the constraints imposed by the inelastic supply of land. The development of fertilizer-responsive crop varieties, which is identified as biological technology, can essentially be a new technology designed to facilitate the substitution of fertilizer (or pesticides) for scare land and to raise yield per Ha. In an economy characterized by a relative scarcity of labour, the improvement of agricultural machinery that can save labour and raise labour productivity may reduce the problem of labour shortage. The constraints imposed by an inelastic supply of labour may be offset by advances in so called mechanical technology. The Technology of Direct-Seeding in paddy rice cultivation (TDS), which has rapidly diffused among individual farmers in recent years, may be the same scale-neutral technology as Tong-il HYVs. It may be said that the TDS has been designed to solve the problem that results from the bottlenecks of labour shortage and high labour cost. It is also assumed that the TDS may be the technical innovation that is induced by changes in factor endowments in market economy while Tong-il HYVs may be the technological development that is leaded by the government's incentives to attain self-sufficiency of staple food. In the area of agricultural policy, the study has a crucial role in establishing a desirable direction for agricultural reconstruction-policy for improving agricultural infrastructure and in providing information for the scientific technology-policy for attaining more efficient resource allocation in agricultural research.