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.

음식물 발효퇴비내 염분의 용출특성

박동근,장정국,박태주 東西大學校 1997 동서논문집 Vol.3 No.1

The objectives of food waste composting are to treat the wastes and to reclaim valuable substances present in the wastes for possible reuse. In the process of food waste composting, however, the salt in the compost can be retained within the soil for extended periods of time. In this study, therefore, a series of experiments were carried out to investigate the leaching characteristics of the salts in the compost of food waste. The resalts obtained from this study can be concluded as follows: 1. The composting process reduced the amount of waste to management because the 80% of water content in the food waste was lowered to 10% of that in the compost, and organics substances in the food waste were decomposed into CO₂, NH₃, water, and various inorganic substances. 2. It was found that the amount of toxic substances such as heavy metals in the food waste were very little, therefore, the metal concentration might not cause any adverse effect on the growth of the corps. 3. The concentrations of leachable cations in the compost were 10∼20% higher than those in the food waste of around 1000 meq/kg. And, SAR of the leachates of the food waste and compost was around 3. 4. The leaching rate of the salts in the compost was decreased with increasing the composting period. Also, the electric conductivities of initial leachate were increased with increassing the mixing ratio of the compost to the soil used. 5. The threshold dose of the compost per day per unit area of the soil was estimated with the following equation: mmho 12.0meq·cm kg 1.65L Threshold dose= 5______ × ___________ × _______ × _____ cm L·mmho 1200meq d·㎡ = 0.08kg/㎡/d

김해시 가로수의 생육환경개선에 관한 연구

박태근,김석규,김승환 동아대학교 건설기술연구소 2000 硏究報告 Vol.24 No.1

The purpose of this study is to investigate growth environment of street trees planted on main roads in Kimhae city. The results of investigation that soil hardness, soil acidity, vitality classified by characteristic of area are as follows ; The results of soil hardness classified by residential area(A area), commercial area (B area), industrial area (C area) are as follows; A section 20.7㎜, B section 17.9㎜, C section 13.4㎜. Soil hardness of investigative areas are satisfactory, but it needs to establish of tree-grate for healthful growth of street trees. The results of soil acidity classified by residential area(A area), commercial area (B area), industrial area (C area) are as follows ; A section pH 5.42, B section pH 4.28, C section pH 3.89, B, C areas are investigated extreme acidity, so it needs to improve of the soil structure.

청소년의 스포츠 참가와 대인관계 성향의 관계

박태근,서동균 京畿專門大學 2000 京畿專門大學 論文集 Vol.- No.28

The researcher sampled 193 students of middle schools in Seoul and Inchon. The purpose of this study is to investigate the relationship between youth's sport participation and interpersonal relations disposition and to provide a basis for the development of personality education policy about youth. Here the researcher set youth's sport participation as a independent variable. Independent variable is youth's sport participation as classified by participation mode. Interpersonal relations disposition as a dependent variable was classified by role disposition, sociometric disposition, and expressive disposition. The questionnaires designed for this study consist of items to represent each variable. The data collected from the questionnaires were by statistical analysis methods such as multiple classification analysis, ANOVA, correlation analysis and multiple regression analysis. The conclusions of this study, verifying the hypotheses about the relationships between youth's sport participation and interpersonal relations disposition found are as follows; Youth sport participants show positive interpersonal relations disposition more so than that of nonparticipationts.

공동주택의 유지관리비 실태 분석 연구 : 서울시를 중심으로

박태근 牧園大學校 建築·都市硏究센터 1996 建築·都市環境硏究 Vol.4 No.-

Maintenance and operating costs of apartment houses are varied depending on several variables : composition of the building, regional characters, climate and conditions of building decrepitude influence maintenance and operating costs. This paper has analyzed the correlations of these parameters with maintenance and operating costs based on survey data.

분당신도시 건설용 골재의 수급에 관한 연구

박태근 牧園大學校 建築·都市硏究센터 1995 建築·都市環境硏究 Vol.3 No.-

The purpose of this paper is to study the aggregate supply plan of Bundang New Town. As the result of study, seized the mistake of that plan, and analyized influence of that plan to architectural field.

효율적인 분산 Deadlock 검출에 관한 연구

박규태,이상범,류근호 연세대학교 산업기술연구소 1985 논문집 Vol.17 No.1

In distributed databases, deadlock may occur due to conflicts in data file lockings. A system is in a deadlock if and only if there is a directed cycle in its demand graph. This paper presents a distributed deadlock detection technique based on transaction wait for graph and reachable set. Reachable set constructs transaction resource graph and detects the deadlock cycle effectively. In this deadlock detection procedure, the deadlock is detected optimally, but there are still some problems of false deadlock due to communication delay. Also studies are made the low cost recovery of the deadlock and their performances.

아조벤젠을 含有한 長鎖脂肪酸의 光異性化 現象에 關한 硏究

朴根浩,朴泰坤 國立 昌原大學校 産業技術硏究所 1994 産技硏論文集 Vol.8 No.-

The Synthesis of p-(p'-octadecyloxy phenylazo)-benzoic acid and p-(p'-hexadecyloxy phenylazo)-benzoic acid were optimized, starting from p-(p'hydroxy phenylazo)-benzoic acid and the product of reaction containing azobenzene chromophores was investigated by ultraviolet spectrophotometery in ethanol solvent at room temperature. In addition, UV absorption spectra of Langmmuir Blodggett(LB) film deposited on quartz plate have been measured and the structure of these compounds were ascertained by means of Ultraviolet and Fourier Transform Infrared spectra. Recrystallization of reaction product in the solvent results the experimental yield obtained about 62.93% p-(p'-octadecyloxy phenyl azo)-benzoic acid. Long chain azobenzene derivatives solution are induced photoisomerization by light irradiation. The LB film of azobenzene containing long chain fatty acids are possible of being applied to functional molecular devices such as photomemory and light switching.

김해시 가로수 현황과 식재방법개선에 관한 연구

박태근,김석규,김승환 동아대학교 건설기술연구소 2000 硏究報告 Vol.24 No.1

The purpose of this study is to investigate the status of street trees planted on main roads in Kimhae city. The species of street trees in Kimhae city are nine, it is not various. As the planting ratio of Ginkgo biloba, Prunus yedoensis, Zelkova serrata, Prunus sargentii is 86%, it is finded that street trees are concentrated on some species of trees. The planting ratio of deciduous tree in Kimhae city is 95.8%. Therefore it needs to increase a planting ratio of evergreen tree.

스포츠 제품 브랜드 이미지와 청소년 소비자 태도의 관계

박태근 한국학교체육학회 2003 한국학교 체육학회지 Vol.13 No.1

본 연구의 목적은 정체성 수립의 시기에 놓여있는 청소년을 대상으로 스포츠제품의 브랜드 이미지가 청소년 소비자 태도에 미치는 영향을 규명하는데 있다. 본 연구의 조사대상은 서울지역에 위치한 고등학생 남자 200명, 여자 200명 총 400명을 집락 무선표집법을 이용하여 표집하였다. 연구대상자에게 검사지를 배포하고 자기평가 기입법에 따라 설문조사를 실시하였다. 자료분석을 위해 사용된 통계분석방법은 Regression , t-test를 실시하였다. 연구의 목적에 따라 이루어진 자료분석을 통해 다음과 같은 결론을 얻었다. 첫째, 청소년 소비자의 스포츠 제품별 관심도에서, 스포츠화(M=3.567, 스포츠의류(M=3.527, 스포츠음료 (M=3.058), 스포츠기구(M=3.00)의 순으로 나타났다. 둘째, 스포츠 제품 브랜드 이미지와 청소년 소비자 태도에서, 스포츠 제품 브랜드 이미지는 인지도와 선호도에 높은 관계가 있는 변인이었으며, 이들은 정적 관계를 보였다. 셋째, 스포츠 제품 브랜드 이미지와 청소년 소비자태도의 성별에서, 성별은 이미지, 인지도 그리고 선호도와 관계가 없는 변인이었으며 이들은 부적 관계를 보였다. 넷째, 스포츠 제품 브랜드 이미지와 청소년 소비자의 자기관여도에서, 청소년의 자기 관여도는 인지도와 선호도에서 관계가 없는 변인이었으며, 이들은 부적 관계를 보였다. This study makes an object high school students (200 males, 200 females) who are active and sensitive to fashion to reveal the influence of the teenage consumer' attitude by the brand image of a sports products. The study conclusion is as follows. First, sports shoes(3.567), sports clothes(3.527), sports beverages(3.058)and sports outfits(3.527) are displayed in order of their interests. Second, the brand image of a sports product is a variable which has high relation to their awareness and preference and there is affirmative relation between the image and their attitude. Third, sex has nothing to do with thier awareness and preference. Fourth, their self-involvement has nothing to do with their awareness and preference, either.