佛國寺 造景의 諸 問題

洪光杓,李相潤 동국대학교 사찰조경연구소 1999 寺刹造景硏究 Vol.7 No.-

The purpose of this study was to grasp the problem and suggest the answer in the landscape of Pulguksa Temple. The result of this study can be summarized as follows: 1. The oval Kupumryonji(ninth rank lotus pond) in Pulguksa temple is the lotus pond and shodow reflection pond. It was symbolized heavenly paradise and was reflected the shadows of Buddha, pagoda and mountain on its surfaces. It must be reconstruct for the identity of the landscape of Pulguksa Temple. 2. Although the stone platforms of Pulguksa temple were constructed with traditional construction method, particularly the one of west corridor in Kuekrakjon territory had many problems. It must be reconstruct with the traditional construction method. 3. It were 2 ponds differed with the traditional pond pattern in the entrance space from Iljumoon to main building. These must be reconstruct with the traditional pond pattern.

나노 세리아 슬러리를 이용한 Stainless steel 304의 MR Polishing 특성에 관한 연구

홍광표,신봉철,김동준,조명우,신영재 한국공작기계학회 2008 한국공작기계학회 춘계학술대회논문집 Vol.2008 No.-

An finishing process using magnetorheological fluid has been developed as a new precision finishing technique to obtain a fine metal surface. Therefore, magnetorheological fluids has been used for micro polishing and micro part. The applied material is 304 stainless steel. It is widely used in the semiconductor machinery and aerospace industries because of high corrosion resistance. For MR polishing process, MR fluids was consisted of carbonyl iron, DI-water and nano slurry ceria(Celexis cx 94s slurry). The wheel speed and electric current were chosen as the variables for analyzing the characteristics of MR polishing process. In the results, the surface roughness according to the variation of wheel speed was analyzed , and it was obtained 1.393nm surface roughness.

寺刹의 蓮池에 관한 硏究

洪光杓 동국대학교 사찰조경연구소 1997 寺刹造景硏究 Vol.5 No.-

The purpose of this paper was to identify the philosophical principles of lotus ponds based on buddhism as well as the design principles. The results showed that buddhism influenced the design of lotus ponds from the beginning in traditional temples, and this design tradition has maintained with some changes in physical form and location of lotus ponds. Also lotus ponds were used as important parts of temples and strongly symbolize buddhist philosophy. It was found that lotus ponds made in the early years of buddhism were usually located at the outside of the middle gate in temples. The location were changed as buddhism prospered, specifically, lotus ponds were moved to the central area in temple and became ornamental elements, which showed the symbolism of ponds were weakened. As the meaning of lotus ponds were changed, their forms were changed from square to circle or oval.

부력저항용 영구앵커의 거동

홍원표,송영식,고광태 중앙대학교 기술과학연구소 2002 기술과학연구소 논문집 Vol.32 No.-

본 연구에서는 부력저항용 영구앵커의 거동을 시공단계별로 구분하여 분석한다. 즉, 앵커의 두부에 하중계를 설치하여 앵커축력을 계측하였으며, 이 계측결과를 토대로, 앵커축력의 손실, 건물자중의 증가 및 외적조건 변화에 따른 앵커의 거동을 분석하였다. 영구앵커는 초기인장력에 비하여 Jacking Free시 인장력이 약 7% 정도 감소하며, 최종인장력은 약 15%정도 감소한다. 한편, 앵커의 초기인장력은 외력이 작용하지 않아도 PC 강선의 relaxation, 주입재 및 지반의 creep 등의 내적요인에 의하여 비선형적으로 감소되어 1차 수렴치에 도달하게 된다. 1차 흙되메우기 작업 기간동안 앵커축력은 흙되메우기에 따른 횡방향 토압이 증가 및 상부구조물의 자중증가로 인하여 감소된다. 그러나, 흙되메우기 작업이 중단된 기간동안 되메우기한 흙의 이완현상으로 횡방향 토압이 감소되며 이로 인하여 앵커축력이 증가하게 된다. 그리고, 되메우기한 흙속으로 지하수가 유입되어 부력이 증가하게 되므로 앵커축력은 증가하게 된다. 이때 앵커축력은 1차 수렴치까지 회복하게 된다. The behavior of permanent anchors for buoyant resistance is investigated at each construction stage. The prestressed anchor forces were measured by load cells which were attached to anchor head. On the basis of instrumentation, the loss of anchor force and the behavior of anchor by increment of structure weight and change of external condition were investigated. Prestressed anchor force at jacking free is decreased by about 7% than initial prestressed anchor force and decreased by about 15% finally. Although external forces does not act on the substructure, initial anchor force is decreased nonlinearly due to relaxation of PC strand and creep of grouting materials and soils. Also, anchor force was converged at the first convergent value. When first backfill was performed, anchor force was decreased due to increment of lateral earth pressure and superstructure weight. But, anchor force grew gradually during the period of breaking backfill by lowering of lateral earth pressure due to relaxation of soils. When groundwater inflowed into backfill soils, anchor force is slowly increased by uplift force below mat foundation. At that time, anchor force is recovered by the first convergent value.

다공성 실리콘위에 rf-스퍼터링법으로 증착된 ITO 박막의 구조적 물리적 특성

홍광표,권덕렬,박현아,이종무 대한금속재료학회 2003 대한금속·재료학회지 Vol.41 No.6

Transparent conducting indium tin oxide (ITO) films are deposited by rf-sputtering at a constant power of 400W in Ar atmosphere on the porous silicon (PS) layers anodized on p-type (100) Si wafers. At three successive stages of deposition for 10, 20 and 30 min. respectively, the growth of ITO on PS is thoroughly investigated by AFM, SEM and XRD techniques. The features of growth on other substrates like single crystal p-type (100) silicon, quartz and glass are also taken into consideration. The influence of ITO microstructure on the porous silicon interface is correlated with the electrical and luminescent behavior of the resulting heterojunction diode structure.

東洋3國 寺刹의 空間이미지 比較分析에 關한 硏究

洪光杓,許濬 동국대학교 사찰조경연구소 1995 寺刹造景硏究 Vol.3 No.-

The purpose of this study is to suggest objective basic data for preservation, management and image up the historic landscape of oriental temples. For this image structure of historic landscape of temples and visual preference have been analyzed by factor analysis algorithm, and finally these data have been analyzed by using the multiple regression. Result of this study can be summarized as follows; Buddha fragrant pavilion obtained the highest rank of visual preference and Kyomisu dera was the lowest. Factors covering spatial image of historic landscape have been found to be total evaluation, dignity, chatacter and scale. And the T.V. has been obtained as 58.6%. Measured values of visual preference include total evaluation and character in all historic landscape of temples. These values have been found to express the regression relation.

通度寺 空間構成形式의 變化過程과 特徵的 現象에 관한 硏究

洪光杓 동국대학교 사찰조경연구소 1992 寺刹造景硏究 Vol.1 No.-

The purpose of this study is to analyzing and interesting the transformation process and characteristic phednomena showed in the spatial organization form of Tongdo-sa(temple). This study was mainly performed through out the review of the related old literary works and a survey map. The results obtained are as folling: 1. The symbolic meaning of the first construction form of Tongdo-sa was respresented to Keumkangkedan(金剛戒壇, stupa). 2. The characteristic phenomena showed in the spatial organization form of Tangdo-sa was accomplished to change its center. 3. The space organizing center of Tongdo-sa was transformed by change its central axis.

메탄올/가솔린 혼합연료의 베기가스 분석 연구

홍광표,박명호,김성준 江原大學校 産業技術硏究所 1997 産業技術硏究 Vol.17 No.-

DOHC gasoline engine(4-cylinder in line type, 1600cc) is modified for the experiment to develope an alternative fuel. The modified engine is tested with the various combination of gasoline and methanol. Pollutant emissions of CO and HC are measured at the end of exhaust manifold. The concentration of CO and HC in exhaust gas is greatly reduce with the increase of coolant temperature of engine. HC concentration is reduced until methanol content reaches to thirty percent and then increased with the volumetric percentage of methanol in fuel. On the other hand, the concentration of CO is reduced as the methanol centent is increased up to 20 percent and then it becomes constant e en though the methanol content is raised. The effect of engine RPM on the HC and CO exhaust is investigated. HC concentration is reduced as the engine RPM is increased but the typical trends of variation are not found in the measured value of CO concentrations.

이동호스트를 위한 적응성 멀티캐스트 알고리즘

홍영표,안광수,백덕화 진주여자전문대학 2001 論文集 Vol.24 No.-

To Provide multicast service for mobile hosts must deal with dynamic member location and its group membership in mobile networks. There are two old approaches as hi -directional tunneling and remote subscription for mobile multicast. The deployment of existing multicast protocols(home agent-based multicast, Bidirectional packet tunneling) is very inefficiently to use network resources such as duplicate copies of multicast datagrams, tunnel convergence, and unicast by long delivery path. The remote subscription scheme may be very expensive because muticast packet delivering is delayed and discontinued frequently by rebuilding a multicast tree to serve multicast when the host move highly. In this paper, we analyse these problems of multicast routing protocols and propose an efficient multicast protocol using cost function to consider the host mobility in wireless mobile networks, By cost function, a mobile host make a decision to receive a tunneled multicast datagram from home agent or to receive a rebuild path from foreign agent. The performance of the proposed protocol was evaluated by simulation under various environments and we got an improved performance.

사찰환경의 보존에 관한 연구

홍광표 동국대학교 사찰조경연구소 1996 寺刹造景硏究 Vol.4 No.-

This study was to make clear the present status of the environmental problem of Korean temples and to propose the conservation means of them. The result of this study obtained are as following ; In order to continuously conserve the environment of temples, follwing efforts have to be made. Firstly, to conserve the environment of temples, the attitude of mind toward environment have to be changed. Secondly. the best method of conserve the environment of temples is to restrict the development of the temple area as much as posible. But of it becomes inevitable to develop the environment, development must start after the conservation planning has been set. Thirdly, the pollution of temple environment has to be minimized and resulting pollution should be properly taken care of. Fourthly, to reasonable conserve the temple environment, the legislative and systematic institution is urgently needed. Lastly, to conserve the temple environment, financial support should be fully cinsidered.