NDWI를 활용한 한반도 지역의 산림 캐노피에 대한 water stress 평가

성노훈 ( No Hun Seong ),서민지 ( Min Ji Seo ),이경상 ( Kyeong Sang Lee ),이창석 ( Chang Suk Lee ),김현지 ( Hyun Ji Kim ),최성원 ( Sung Won Choi ),한경수 ( Kyung Soo Han ) 대한원격탐사학회 2015 大韓遠隔探査學會誌 Vol.31 No.2

잎의 수분 함유량은 식물의 건강상태를 나타내는 중요한 척도 중 하나로써, 이를 원격탐사를 활용하여 모니터링 하는 것은 산림관리에 있어서 매우 중요하다. 본 연구에서는 식생 캐노피의 수분량을 연구하는데 유용한 지수인 Normalized Difference Water Index (NDWI)를 이용하여 한반도 산림의 water stress 정도를 알아보고자 한다. SPOT/VEGETATION S10 채널자료를 1999년부터 2013년까지 취득하여 NDWI 를 산출하였고, 데이터의 노이즈를 제거하기 위하여 단순이동평균, NDWI의 시간적 변화를 파악하기 위하여standardized anomaly를 수행했으며, 직관적인 모니터링을 위해 NDWI anomaly를 등급화 하였다. 또한 피해면적 150 ha 이상의 대형 산불과 비교 검증을 통해, 산림 캐노피의 water stress 평가 인자로서 Leaf water content is one of important indicators that shows states of vegetation. It is important to monitor vegetation water content using remote sensing for forest management. In this study, we investigated the degree of water stress in Korean peninsula with Normalized Difference Water Index (NDWI) to study the water content of vegetation canopy. We calculated the NDWI using SPOT/ VEGETATION S10 channel data over forest from 1999 to 2013. We calculated Simple Moving Average (SMA) to remove temporal noises of NDWI in time series, and used standardized anomaly to investigate temporal changes. We classified the NDWI anomalies into three scales (low, moderate, and high) in order to monitor intuitively. We also investigated suitability of the NDWI as an evaluation criterion about water stress of vegetation canopy by comparing and verifying forest fires damaged area over 150 ha. Consequently, huge forest fire occurred 24 times during the study period. Also, negative anomalies appeared in every forest fire location and their neighboring areas. In particular, we found huge forest fires where NDWI anomalies were in ‘high’ scale.

회 전문 레스토랑에 나타난 공간구성적 특성 연구

이선화(Lee, Sun-Hwa),이창노(Lee, Chang-No) 한국실내디자인학회 2014 한국실내디자인학회 학술대회논문집 Vol.2014 No.11

In line with the change of lifestyle in the contemporary society, the eating space is not a simple eating place for food, but a place of complicated roles such as social meeting, entertainment and conference. The reason of such diversified and complicated space is caused by the increase of income level of consumers, increase of urban population and consumption pattern change. However, despite diverse spaces of food culture, studies on ‘sashimi’ restaurants are very scanty. Accordingly, this study selected the target of case study as representative ‘sashimi’ restaurant and examined through drawing analysis, site analysis, photo taking and actual measurement of main parts. As a result, as for the floor structure of food and drink space, it was found that securing excellent view is important for seat display. Secondly, 1F, 2F and 5F were mainly occupied by cooking and management divisions. Thirdly, the area ratio of sales, cooking and management divisions affected the customer movement and employee movement. Fourthly, standing seats were displayed for customers and room seats were displayed for the premium image of restaurant and for customers who want independent eating space. It is believed that this study would be useful in spatial structure of ‘sashimi’ restaurant. However, as it is the result of an analysis of 1 restaurant at Suyoung-gu, Busan, it would be hard to generalize the result as the common for ‘sashimi’ restaurant. Therefore, continual further studies are recommended to generalize it.

일본 호텔건축에 나타난 공용부문의 공간 구성적 특성에 관한 연구 - 東京都內 특급도시호텔을 중심으로 -

李昌魯,姜健熙 弘益大學校 科學技術硏究所 2004 科學技術硏究論文集 Vol.15 No.-

On the purpose of this study is mentioning about basic information and guide related to design a city hotel, through an analysis on specialty of public space, which were built in the beginning of 1970 to the end of 1990 in Tokyo. The following is conclusion by based on pre-survey of the analysis of a plan and a site in these hotels. First, as a result of analysis in block type, there are equally centered two types in 10PL. hotels. (interlocking form is 4PL. and form within Form is 6PL.) Second, as a result of analysis of function type in public interior space, Con-course type is strongly located in 5PL.(3PL. in Center type and 2PL. in Compromising type), but Line type is in 8PL. in 10 hotels. Third, the composed rate of square measure in public space are investigated as 34.11% in public, 28.00% in sales and 33.07% in service part.

공사의 단계별·기능별 주요기본업무에 관한 연구 : CM과 ISO 시스템과의 상관성을 중심으로

이창노 신라대학교 자연과학연구소 2003 自然科學論文集 Vol.12 No.-

The subject of this study is based on ISO 9000 Quality Management System to manage with projects, to make a proper application for the CM system which is being legislative. First, according to the related professional groups, ISO 9000 Quality Management System is more desirable than TQC to apply in CM cases even thought TQC has been used in general and also turned out to be efficiency. Second, as being divided by two methods, 'CM at risk' to avoid a risk, is a tendency to apply in the world wide on the project of being large, various and complicated. Third, CM is based on the transformed contract to satisfy with the directed client who does not aware of qualification, to prove by professional Quality Management Institution. Fourth, it is analyzed that ISO 9001 is proper to use for 'CM at risk' and ISO 9002 is to use for 'CM for fee'

한국 도시호텔의 형태구성유형에 관한 연구 : 서울시 특급호텔을 중심으로 Focused on first class hotels in Seoul City

이창노,강건희 대한건축학회 2003 대한건축학회논문집 Vol.19 No.7

The study of this thesis is analyzed in general block type to be applicated through the record of pre-docu., the analysis of drawing and the survey of field. This object is based on approximately 20 hotels in main city which were built in the beginning of 1960' through the end of 1990'. On the purpose of this study is mentioning about basic information and guide related block types, through a comparison and an analysis of floor types, which is shown as function in block types and interior spaces. The following is conclusion of analysis. 1. There are four types of functional component method and three types, which are consist of Room and board, Public area and Admin., of space component in the architecture of city hotel. 2. According to the analysis of period, the in-type were used in large scale hotel in 1970' and the close-type were used in the middle and small scale hotel after 1980', because of the problem of combination type in structure.

도시호텔에 나타난 건축 계획적 특성에 관한 연구 : 서울시 특급호텔을 중심으로 Focused on first class hotels in Seoul

이창노 신라대학교 사회과학연구소 2003 사회과학연구 Vol.- No.6

The scope of this study is first class hotels(12 places) which are built and managed in urban during 1970's to 1990's, which was the period of rapidly developed in hotel industry. The purpose of this study is written by designing the basic information of architectures, new hotels which are built and managed in urban, refer to the survey and analysis of the characteristic in hotel. For the composition of this study, the second chapter is consist of a theoretical study in concept and each functional characteristic of hotel in urban and the third chapter is suggested of conclusion which is based on the architectural characteristic in hotels.

집합조직을 이용한 알루미늄판재의 성형성 향상에 관한 연구

이문규,제창웅,박노진 國立金烏工科大學校 産業技術開發硏究院 2002 産業技術開發硏究 Vol.18 No.-

In order to improve the formability of Al-sheet, control of the crystallographic texture is essential because of the anisotropic nature of plastic properties. The formation of texture is governed by the thermomechanical processes such as cold rolling and annealing. In order to obtain different textures, cold rolling with/without lubrication and recrystallization were applied. The through-thickness texture gradient is formed during the cold rolling without lubrication. The center layer mainly consisted of the β-fiber texture but surface layer was composed of (001}<100) shear texture. Recrystallization with rolling texture of β-fiber led to typically an increase of the {001<100>-Cube component at the expense of the β-fiber orientation. However, from the rolling of {001}<100). shear component the recrystallization texture was observed which is composed by relatively strong {0.469 .814 0.342}<0.848 0.524 0.082>-, {112}<7 11 2>- and weak {001}<110>- {011}<011>-components. Much higher r-values were estimated with {0.469 0.814 0.342}<0.848 0.524 0.082>- {112}<7 11 2>-components than {001}<100>-Cube recrystallization texture.

로보트 매니플레이트 적응모델 추종제어

이병노,채창현,문영현 연세대학교 산업기술연구소 1986 논문집 Vol.18 No.1

This paper presents the application of an adaptive model-following control(AMFC)technique for robotic manipulators. The control scheme is to minimize the state error which is the difference between the state of the reference model and the state of the controlled manipulator. The stability of the whole system was automatically guaranteed by the hyper-stability control structure. The upper three joint of a PUMA robot with six rotational joints was selected to investigate the practical applicability of the proposed adaptive controller. The effect to the payload change has been analyzed through the computer simulation of manipulator. The results agreed with the expected capabilities of the AMFC. The proposed AMFC contoller of robot manipulator ensures the adaptibility to spatial configuration and good insensitivity to the payload changes.

Zinc Titanate에서 H₂S 흡수특성 조사

이태진,박노국,권원태,장원철,박영성 嶺南大學校 環境問題硏究所 1996 環境硏究 Vol.16 No.1

요약문사출성형법으로 평가를 위해 ZnO 함량을 변화시키면서 4종류의 Zinc Titanate 흡수제를 제조하였다. Zn/Ti 몰비가 증가할수록 지배적인 결정상은 Zn 2Ti3O8과 Zn2TiO4로 관찰되었다. Zinc Titanate 탈황제에 의한 H2S 흡수반응을 모사석탄가스의 고온탈황에 의해서 실험적으로 연구하였다. 내경 3cm인 석영관의 고정상 반응기로 4종류의 Zin cTitanate 흡수제에 대하여 H2S 흡수와 재생의 10-cycle 실험을 수행하였다. 파과곡선, SEM, BET 등의 실험적인 관찰을 근거로 하여 650℃가 최적 흡수반응온도임을 결정하였다. 탈황과 재생의 반복적인 실험동안 H2S와 S02의 파과곡선들을 구하였다. 또한, 시험 전후의 흡수제의 물성변화를 SEM, EDX, Hg-porosimetry 및 BET 방법으로 분석하였다. 비록 더많은 연구가 필요하지만, 제한된 실험적 조건에서 판단하면 YZT-3(Zn/Ti=1.5)가 가장 우수한 탈황제라고 결론내릴 수 있다.AbstractFour zinc titanate sorbents were prepared for evaluation by extrusion method with varying ZnO contents. The predominant crystalline phases were Zn2Ti3O3 and Zn2TiO4 as Zn/Ti molar ratio was increased. Absorption of HzS by the zinc titanate sorbents was studied experimentally in high temperature desulfurization of simulated coal gas. Fixed-bed system of 3 cm i. d. quartz tube was used to carry out 10-cycle experiments of H2S absorption and regeneration for the zinc titanate sorbents. In these experiments the optimal absorption temperature was determined as 650 ℃ based on experimental observation of breakthrough curves, SEM and BET results, and so on. H2S and SO; breakthrough curves were obtained for each sorbent during repetitive cycles of desulfurization and regeneration. Also, property changes of the sorbent before and after testing were analyzed using SEM, EDX, XRD, Hg-porosimeter and BET method. It is concluded under this limited experimental conditions YZT-3 (Zn/Ti =1.5) was the most suitable desulfurization sorbent even though further tests are required.

Variation of Mechanical Properties and Corrosion Properties with Mo Contents of Hyper Duplex Stainless‑Steel Welds

No‑hoon Kim,Woong Gil,Heui‑dae Lim,Chang‑hyeon Choi,Hae‑woo Lee 대한금속·재료학회 2019 METALS AND MATERIALS International Vol.25 No.1

This study investigates the effect of the Mo content on the mechanical and corrosion properties of hyper duplex stainless-steelwelds that are subjected to flux cored arc welding (FCAW). Conventional hyper duplex stainless steel has limited productivityowing to the welding position and welding equipment of gas tungsten arc welding (GTAW) and submerged arc welding(SAW). As such, the purpose of this study is to develop a weld material for FCAW, which is not subject to the limitations ofGTAW and SAW, as well as to improve productivity and quality. FCAW was performed under the same conditions, exceptfor the Mo content, which were varied to 3, 4.5, and 6 wt%. Tensile and impact tests were carried out to investigate thevariation of the mechanical properties according to the Mo content. As the Mo content increased, the elongation decreasedand the strength increased. It was confirmed that the δ-ferrite phase increased and the γ-austenite phase decreased as theMo content increased. Secondary phase such as σ phase, χ phase were mainly distributed in ferrite grains or austenite–ferritegrain boundaries using EBSD. It was also increased as the Mo content increased. To evaluate the corrosion resistance,Potentiodynamic Polarization Tests and DL-EPR tests were conducted. As a result, all of specimens showed similar corrosionresistance.