Repetitive Compensation Control for AGC System By Using Pre-Pass Rolling Data

Hwan?Seong KIM,Jin?Seon PARK,Sang?Dol LEE,Keum?Jae LEE,Sung?Kwan PARK 제어로봇시스템학회 2001 제어로봇시스템학회 국제학술대회 논문집 Vol.2001 No.10

스키리조트 워터파크 체험과 체험만족, 소비자태도 및 재방문의도의 구조적 관계

박재환(Park Jae-Hwan) 한국체육과학회 2011 한국체육과학회지 Vol.20 No.3

The purpose of this research was to investigate effect of a consumers’ satisfaction, revisit intentions and experience in ski resort water park through the analysis of Structural Equation Model(SEM), focusing on the theoretical structure. The subjects of this research were customers in ski resort water park. Out of 250 samples, 237 samples through convenience sampling method, were used in the final analysis, excluding 13 less reliable sample. This data was processed by using SPSSWIN Ver.18.0 and AMOS 18.0, Individual hypothesis was verified after reviewing a model adequacy by data processing. The results were as follows; First, sensory, emotional and cognitive experience had exerted a useful positive influence over consumers satisfaction but act and relate experience had not exerted a influence over consumers satisfaction. Second, consumers satisfaction had not exerted a influence over revisit intentions. Third, consumers satisfaction had exerted a useful positive influence over consumers attitude. Forth, consumers attitude had exerted a useful positive influence over revisit intentions.

Variation of Bird community and Habitat use after Developing Hangang river Ecological Learning Center

Paik, In-Hwan,Jin, Seon-Deok,Jeon, Byung-Seon,Yu, Jae-Pyoung,Park, Chi-Young,Paek, Woon-Kee national science museum of korea 2010 Journal of Korean nature Vol.3 No.4

The Hangang (Han River) Ecological Learning Center is a river ecosystem park which was completed in December of 2002. The river ecosystem park was created based on the understanding of the problems of standard park-formed river which centers around convenient facilities instead of on the wish to accentuate the innate unique characteristics of a river. Therefore, the study was conducted in order to analyze the changes and habitation usage of the avifauna in the Hangang Ecological Learning Center to provide basic information for the improvement of bird species diversity in an ecosystem park. The study was conducted in July and October of both 2003 and 2005 to study the avian colonies of the same time period, and the habitat usage of four different areas were examined. Main dominant species includes species which preferred waterside and grassland, and 2005 showed higher levels of species, bird count and number of migratory birds. Furthermore, among the four regions used as habitats, the confluence region showed the highest level of increase, and this is predicted to have caused by the shallow depth of the confluence and the stability of the waterside plant colonies.

Elevational Distribution of Breeding Bird Communities in Seoraksan National Park, Korea

Hwang, Hyun-Su,Lee, Jae-Kang,Eom, Tae-Kyung,Bae, Ho-Kyoung,Lee, Dong-Ho,Lim, Jong-Hwan,Jung, Sung-Cheol,Park, Chan-Ryul,Rhim, Shin-Jae Korean Society of Forest Science 2020 한국산림과학회지 Vol.109 No.1

In this study, the elevational distribution of breeding birds in Seoraksan National Park, Korea was investigated. Forty-six species of birds were documented from line transect surveys taken from Seorakdong at 230 m above sea level (a.s.l.) to the Daechungbong summit at 1708 m asl. Birdspecies richness and diversity were highest in Seorakdong and lowest at the Daechungbong summit. As elevation increased, bird species richness and diversity decreased, with a humped-shape trend being observed between 700 m and 1200 m a.s.l. Stepwise analyses revealed that breeding bird species diversity indices were significantly negatively correlated with elevation (r² = 0.327, P < 0.001) and positively correlated with vegetational coverage (r² = 0.324, P = 0.046). Higher elevations supported fewer birds than low and intermediate elevations. Projections at the local scale, including data on behavior and habitat use by birds, will be necessary for optimal conservation and management of the bird communities in Seoraksan National Park.

Elevational Distribution of Breeding Bird Communities in Seoraksan National Park, Korea

( Hyun-su Hwang ),( Jae-kang Lee ),( Tae-kyung Eom ),( Ho-kyoung Bae ),( Dong-ho Lee ),( Jong-hwan Lim ),( Sung-cheol Jung ),( Chan-ryul Park ),( Shin-jae Rhim ) 한국산림과학회(구 한국임학회) 2020 한국산림과학회지 Vol.109 No.1

In this study, the elevational distribution of breeding birds in Seoraksan National Park, Korea was investigated. Forty-six species of birds were documented from line transect surveys taken from Seorakdong at 230 m above sea level (a.s.l.) to the Daechungbong summit at 1708 m asl. Birdspecies richness and diversity were highest in Seorakdong and lowest at the Daechungbong summit. As elevation increased, bird species richness and diversity decreased, with a humped-shape trend being observed between 700 m and 1200 m a.s.l. Stepwise analyses revealed that breeding bird species diversity indices were significantly negatively correlated with elevation (r² = 0.327, P < 0.001) and positively correlated with vegetational coverage (r² = 0.324, P = 0.046). Higher elevations supported fewer birds than low and intermediate elevations. Projections at the local scale, including data on behavior and habitat use by birds, will be necessary for optimal conservation and management of the bird communities in Seoraksan National Park.

논문 : 국립공원 탐방로 내 위험 급경사지 유지관리 방안 연구

김홍균 ( Hong Gyun Kim ),김태호 ( Tae Ho Kim ),김재학 ( Jae Hak Kim ),곽재환 ( Jae Hwan Kwak ),박성욱 ( Sung Wook Park ),최수원 ( Soo Won Choi ),송영갑 ( Young Karb Song ) 대한지질공학회 2016 지질공학 Vol.26 No.1

국립공원은 주로 산악 지형 내 조성되어 있으므로 산사태에 의한 피해 가능성을 항상 내포하고 있다. 본 연구는 산사태 연구의 일환으로 국립공원 탐방로 내 위험 급경사지를 체계적으로 유지관리하기 위한 방안을 마련하는데 목적이 있다. 국립공원에 특화된 자체 체크리스트를 제작하였으며, 전국 19개 국립공원 183개소 급경사지에 대한 실태조사가 이루어졌다. 실태조사의 최종 목적은 위험 급경사지에 대한 안정화 대책을 마련하는 것으로 현장조사와 안정해석의 과정을 거친다. 일부 급경사지에서는 위험성 판단을 위해 지상라이다 등 특수 장비를 이용한 조사를 시도하였다. 중장기 정비계획을 위한 투자우선순위 공식을 개발하였으며, 현장자료를 이용한 순위 및 위험등급을 산출하였다. 최종적으로 위험 급경사지의 향후 체계적인 관리를 위해 “국립공원 급경사지 유지관리시스템”을 개발하였으며, 모든 현장자료들은 시스템 내 DB화 되었다. National parks, which are located mainly in mountainous areas, are always at risk of damage by landslides. The goal of this study is to establish a method for systematically maintaining hazardous steep slopes along trails in national parks. We produced a checklist suitable for each of the 19 national parks nationwide and investigated 183 slopes. The aim of these investigations is to recommend appropriate slope-stability countermeasures, including field investigations and stability analysis. We made preliminary investigations at specific sites, evaluating the slope hazard using specialized equipment such as terrestrial LiDAR. An investment priority formula was developed, and ranking and hazardous grades were calculated as part of a long-term maintenance plan. Finally, to systematically manage dangerous slopes and to house all the field data within one system, we developed the “Slope Maintenance System in National Parks” based on web server that can show various information for slopes.

급성 심근허혈에 의해 윤발된 승모판 폐쇄부전의 기전에 관한 실험적 연구

강덕현,송현,송재관,김현숙,이재환,임희영,이재원,박성욱,박승정,송명근 대한순환기학회 1999 Korean Circulation Journal Vol.29 No.8

가족성 용종증에서 시행한 J형 회장 저장낭-항문 문합술의 수술성적

이현국,박규주,오재환,박재갑,이현국,박규주,오재환,박재갑 대한대장항문학회 1995 Annals of Coloproctolgy Vol.11 No.4

Sol-Gel 법에 의한 Nanoporous Alumina Membrane용 Alumina Sol 제조

박자룡,김태환,성재석,송기창 한국화학공학회 2004 Korean Chemical Engineering Research(HWAHAK KONGHA Vol.42 No.1

Sol-Gel법에 의해 출발물질로 aluminum isopropoxide(AIP)를 사용하여, 가수분해 및 해교과정을 거쳐 alumina(boehmite)졸을 제조하였다. 또한 이 졸을 건조오븐에서 건조시켜, 분말을 제조한 후 열처리온도에 따른 분말 결정상의 조성과 기공특성을 조사하였다. 100℃에서 열처리하여 제조된 분말은 boehmite상을 나타내었으며, 500℃에서 γ-alumina로 상전이 되었다. HCl/AIP=0.10의 조건으로 해교된 후 600℃로 열처리된 분말은 4nm의 평균기공 크기를 나타내었다. 또한 해교시 첨가된 HCl양이 증가됨에 따라 기공의 크기는 감소한 반면 열처리 온도가 증가됨에 따라 평균기공의 크기는 증가하였다. Alumina(boehmite) sol was prepared by the sol-gel method from aluminum isopropoxide(AIP) through bydrolysis and peptization processes. Powders were obtained by drying the sol in drying oven, and the powder properties, such as crystalline phase composition and pore structure, were studied as a function of heat-treatment temperatures. The powders showed boehmite phase at 100℃, and transformed to γ-alumina at 500℃. The powders, heat-treated at 600℃ after being peptized at HCl/AIP=0.10, 4㎚ in average pore diameter. The average pore diameter of the powders decreased with increasing HCl concentrations added uring peptization process, but increased with increasing heat-treatment temperatures.

현대 한국사회의 일상적 삶의 구성원리

박재환 부산대학교 사회과학대학 2001 社會科學論叢 Vol.20 No.1

Les principes constitutifs de la vie quotidienne dans la socie´te´ coreenne contemporaine decoulent de de´ux sources principales : les traditions a` travers des sie´cles et les expe´riences accumule´es dans l'histoire re´cente du pays. Dans une e´tude pre´ce´dente, j'ai note´ que les pense´es core´ennes traditionnelles sont caracte´rise´es par l'humanisme, l'accent mis sur le hic et nunc, e relativisme et le mode`le familial exclusif. Il faut y ajouter, si l'on vent saisir les pense´es quotidiennes de la Core´e actuelle, la situation ge´opolitique du pays et les e´ve´ nements historiques qu'elle a` en partie entrai^ne´s : la colonisation japonaise de 36 ans, la se´paration de la Core´e en Sud et Nord, le de´veloppement e´conomique en grande vitesse, le pouvoir militaire qui a` dure´ unetrentaine d'anne´es et finalement l'arrive´e du gouvernement non-militaire de´mocratiquement e´lu. De ces traditions et de ces e´ve´venements historiques, les principes constitutifs de la vie quotidienne suivants sont forme´s : 1) le mate´rialisme et le pouvoir de l'argent : tous les secteurs de la socie´te´ se trouvent sous l'influence de l'argent, qui intervient dans les e´tudes, dans le mariage et me^me dans les fune´railles. 2) L'e´galitarisme´ pousse´ a` l'extreme : les Core´ens d'aujourd'hui n'acceptent aucune sorte d'inegalite´, parce qu'ils la considere`nt provoque´e par les politiques inadaptees et que l'on peut corriger. Cette foi en e´galitarisme absolu rend impossible quelconque consensus social. 3) Le re´sultat qui prime le processus : si le re´sultat est bon, on ne regarde pas la justesse du processus. Ceci set valable sur diffe´rents lieux de formation : les e´tablissements de l'education nationale, les stages des grandes entreprises. 4) La rapidite´ dans les actions : la vie est mene´e a` toute vitesse. L'expression "pali, pali(vite, vite)" domine toutes les activitie´s quotidiennes. 5) L'accent mis sur le hic et nunc : tout ce qui est actuel est le plus important. 6) L'uniformisme conformiste : ni les adultes ni les jeunes n'ont encore incorpore´ l'individualisme occidental dans leur comportement. Les nouveaute´s comportementales des jeunes re´sultent des phe´nome´nes de groupe pluto^t que des de´cisions individuelles.