海雲台砂浜의 漂砂에 관한 硏究

金熙鍾,姜周復,朴雲龍 동아대학교 공과대학 부설 한국자원개발연구소 1982 硏究報告 Vol.6 No.2

It must be a significant problem of national standpoint as well as Busan city that the area of Hae un dae beach continues to diminish since 1976. This problem seems to be caused by the transportion of littoral drifts. Therefore, this paper intended to investigated parameters having best correlationship with the drift and be able to estimate transfer quantity in future, and besides to develop protection method to control the phenomena. 1. A primary factor of Haeun-dae seashore erosion is that the more wave steepness is, the more severe erosion is. When the value of slope is above 0.025 erosion occurs, and relatively accretion occurs when it is below 0.025. And other factor is that is that if constructions place near the shoreline, erosion will be more sever. So in case of landfilling the front of the mouth of Chun river, erosion seems to be more severe because shortage of supply-sand was caused by position deformation of the mouth of river. 2. The range of specific gravities of sands in Heaun-dae beach is 2.56-2.69. At No.23 a great deal of soil was involved, at No.33 clam-shell, sand soil were mixed and dam-shells were mainly included at No.44 3. The materials of sea-bed were sampled at point of 50m, 100m, 300m, 400m, 500m, away from the shoreline of No.23, No33, No.44, No.55, No.65 relatively. As a result of analysis of the specific gravities and median diameters, the specific gravities at both sides decrease according to the depth of water, and in the vicinity of the center a kind of cyclic phenomenon, which the specific gravities having the range of 2.76-2.27 increase and decrease in turns at intervals of 50m, appears. Near the center there are many clam-shell and S O₂, the component of pure sand is only 45.44%, so the specific gravities decrease to 2.27. 4. It seems that entrance and exit of hae un dae sand to Su-yeang, chun river from Song jeang line, recently it is assumed that it go to Hae un dae on the ground of insufficient evidence in diameter, specific gravity. 5. It was known that erosions happen is spring and autumn mainly. 6. Total erosion quantity is 15000m3 and the reduction area of beach sands is 2,230㎡ from July, 1981 to June, 1982 7. The equilibrium slope of beach sand had been step type untill 1982, 3. 17, but it has belonged to bar type since 1982.3, 17. 8. The specific gravities of the materials of sea-bed at the front of Kuk Dong hotel and the 3rd watchtower are about 2.70, Here, sands seems to be transported from land to sea at the latter, from west to south at the former. Chun-river is guessed to be a supply source of sands. But At the front of the 1stwatch tower, the specific gravity of sands is about 2. 57, which is relative light. considering that the specific gravity of sands is 2.573 in su-yeang river. At the front of Beach hotel the specific gravity is the smallest value of 2.54. Here, there are mainly clam-shells, so it is concluded that sands were transported from East-river「in song- Jeung. 9. In protection method of beach erosin, back sea dyke more than 10m(requirement model test) and construct 10m in width low step, is absorbed by it. It is to be desired that beach nourishment per 20,000㎥/year 10. To estimate the wave steepness and erosin quantity the equation, V= -338,727.3(H_0/L_0)+4898.2, was induced. 11. By the equation, V= -338727.3(H_0/L_0)+4898.2 total evosion quantify is 159,042㎥ from July. 79 to June, 82. Because Busan is the city surrounded by sea, it is absolutely necessary to be able to observe the deepwater wave height by means of wave height observation stations.

UN / CEFACT 전자문서의 XML 변환규칙

정용규(Yong-Gyu Jung),김운섭(Un-Seob Kim) 한국정보과학회 2002 한국정보과학회 학술발표논문집 Vol.29 No.1A

전자문서교환(EDI, Electronic)은 기업과 기업간에 컴퓨터와 컴퓨터의 통신을 통하여 필요한 거래문서를 구조화된 형식으로 교환하여 업무를 처리하는 방식을 말한다. 그동안 EDI 표준은 북미를 중심으로 한 ANSI X.12를 시작으로, 이에 대응되는 유럽중심의 UN/CEFACT 표준이 제정되었다. UN/CEFACT로 표준을 통합하기로 합의한 양대 표준은 또 다른 XML환경을 접하게 되었다. ISO TC154에서는 UN/CEFACT전자문서의 XML변환에 관한 논의하게 되었으나 표준으로 권고되지 못하고 있는 실정이다. 이런 표준간 연동의 문제를 위하여 본 논문에서는 Speaking Tag방식과 UN/CEFACT Tag방식의 두가지를 제안하며 각각에 대해 변환규칙을 제안한다.

Three Love Poems by Han Yong-un

Han Yong-un,Kim Jai-hiun(번역자) The Academy of Korean Studies 1973 Korea Journal Vol.13 No.4

海雲台 海水浴場 浸蝕에 미치는 海岸制防의 影響에 대하여 (Ⅱ)

閔丙亨,金熙鐘,朴雲龍,金嘉也 동아대학교 공과대학 부설 한국자원개발연구소 1985 硏究報告 Vol.9 No.1

This study has been carried out to investigate into the beach deformation caused by the construction of a sea well. It has been performed to determine the values of three dimensional movable bed hydraulic model test on the basis of the values of the marine investigation of HAE UN DAE beach and two dimensional movable bed hydraulic model test. Form the results of this work a protection method of HAE UN DAE beach erosion can be proposed to be the construction of T type jetty.

海雲台 海濱變形에 관한 硏究

閔丙亨,姜龍太,朴雲龍,金嘉也 동아대학교 공과대학 부설 한국자원개발연구소 1984 硏究報告 Vol.8 No.1

This study has been carried out to determine the values of bed-sand scale and time scale which are difficult at hydraulic model tests on the HAE UN DAE beach after performing a marine investigation required to establish a protection method about the deformation of HAE UN DAE beach by using hydraulic model test. The amount of topography deformation of HAE UN DAE beach has also been obtained by the two dimensional movable bed hydraulic model test in a quantitative way.

불소 제재가 심미 수복 재료의 표면 구조에 미치는 영향

김은영,최병재 大韓小兒齒科學會 1997 大韓小兒齒科學會誌 Vol.24 No.2

Topical fluoride application for children is a widely performed procedure in the field of Pediatric Dentistry for its dental caries prevention effects. However ,it is recently recognized as having some unwanted effects on several esthetic restorative materials as it roughens the surfaces of the restorative materitals. In order to evaluate the surface changes in esthetic restorative materials, the author immersed composite resin, glass ionomer cement, and resin-modified glass ionomer cement specimens in various topical fluoride agents and measured the weight loss and also, examined the specimens under the scanning electron microscope. The followings are the results: 1. All the specimens immersed in APF gel for 4 minutes showed statistically significant weight loss. (paired t-test, P<0.05). 2. There was no statistically significant weight loss for the resin-modified glass ionomer cement and composite resin groups immersed in sodium fluoride solution (paired t-test, P>0.05). 3. When the glass ionomer cement group was immersed in APF gel for 1 and 4 minutes, there was a statistically significant weight loss compare to dther esthetic restorative materials (ANOVA, P<0.05). 4. In the resin- modified glass ionomer cement group and the composite resin group, weight loss in the APF gel 4 minutes immersion group was greater than the 1 minute immersion group , and it was statistically significant (ANOVA, P<0.05). 5. When the specimens were examined under scanning electron microscope, the surface changes were greatest in the order of glass ionomer cement, resin-modifiedglass ionomer cement,composite resin and also in the order of APF gel 4 minute immersion group, 1 minute immersion group, sodium fluoride immersion group, and control group.

영지버섯 리큐르주의 침출시간에 따른 성분변화

金紅出,李相元,金哲鎬,趙鏞雲 진주산업대학교 2000 산업과학기술연구소보 Vol.- No.7

The physicochemical factors such as organic acid composition, pH, sugar content, acidity and color according to extraction time of Ganodema licidum liquor changed as followings; 1. The major general components of Ganodema licidum were analyzed to be crude fiber(47.5%), carbohydrate (29,4%), crude protein (14.8%), crude fat (6.5%) and crude ash (1.8%) in dry basis. 2. pH and sugar content in Ganodema licidum liquor slightly decreased, whereas acidity increased with extraction time. 3. The luminosity of color (L) showed no remarkable change. 4. The tone of color (a) decreased, whereas the chroma (b) increased as time goes by. 5. The concentration of total organic acid in Ganodema licidum liquor was 2.453%, and nine kinds of organic acids such as oxalic, citric, tartaric, succinic, lactic, formic, acetic, propionic and isobutyric acid were detected. Among them, the concentration of lactic acid was highest acetic and isobutyric acid were medium level, and that of citric, formic, succinc and tartaric acid was very low.

중합효소연쇄반응 기법을 이용한 돼지 증식성 장염 진단 기법의 확립

김대영,권언혜,송민동,양시용 建國大學校 自然科學硏究所 2002 建國自然科學硏究誌 Vol.13 No.1

This study was carried out to establish a efficient diagnosis method of pocine proliferative enteropathy (PPE) contributing major economic loss by inducing weight loss, poor growth and/or sudden death through out the growth period(6~22 wk). Therefore, in this study we established the PCR (polymerase chain reaction) which was a fast, specific and sensitive method for identification of Lawsonia intracellularis (L. intracellularis). We designed and synthesized primer on the 16S rDNA and p78 gene encoding L. intracellularis. Specificity of the method was confirmed by comparison of the PCR results using other enteric bacteria and the study has shown that PCR method was sensitive to detect lng of genomic DNA as a template. Also, the PCR method was applicable to the naturally affected pigs with PPE. Based on the results from this study, the PCR method could be used as a fast and specific dignistic tool for PPE.

국내에서 채집한 진드기에서 중합효소연쇄반응을 이용한 라임병균 및 Ehrlichiosis 원인체의 검출

김종배,엄용빈,박성언,박상욱,김영미,송혜원,안준환 THE KOREAN SOCIETY FOR BIOMEDICAL LABORATORY SCIEN 1998 Journal of biomedical laboratory sciences Vol.4 No.2

국내에서 채집한 진드기의 라임병 및 ehrlichiosis원인체 보균 상태를 조사하기 위하여 총 516마리 (Ixodes spp. 22마리, Haemaphysalis spp. 494마리)의 ixodid 진드기를 봄과 가을에 걸쳐 강원도 고산지대 일원에서 채집하였다. 수집한 진드기에서 DNA를 추출 ·정제한 후 추출한 DNA를 template로 이용하여 , Borrelia burgdorferi sensu lato 및 Ehrlichia spp.에 특이하게 반응하도록 제작한 primer를 이용한 중합효소연쇄반응 (polymerase chain reaction, PCR)을 실시하였으며, 이 결과를 oligonucleotide probe를 사용한 southern blotting을 통하여 다시 확인하였다. 총 516마리의 진드기중 B.garinii sensu lato DNA 양성 인 진드기는 68(13.2%)마리 (B. burgdorferi sensu stricto,2; B. afzelii,1; B. garinii,33; B.tanukii,8; B.turdae, 4)로 나타났으며 이 중 37 (7.2%)마리의 진드기 는 southern blot analysis에서도 양성으로 확인되었다. 또한 101 (19.2%)마리의 진드기가 Ehrlichia spp.에 대한 PCR에서 양성 이었으나, 이들 중 25 (4.8%)마리 만이 southern blot analysis에서 양성으로 확인되었다. 그러나 사람의 병인체로 추정 되는 human granulocytic ehrlichiosis (HGE) agent DNA를 보균한 진드기는 확인되지 않았다. 한편 라임병균과 ehrlichiosis원인체를 동시에 보균한 것으로 밝혀진 진드기가 3마리에서 (0.6%)확인되어,국내에서도 진드기 교상시 이들 두 가지 열성질환이 동시에 감염될 가능성이 있는 것으로 사료됨으로 진드기 매개성 열성질환에 대한 적절한 진단법 등을 보다 체계적으로 연구하여야 할 것으로 판단된다. To investigate the distribution of Borrelia Burgdorferi and human granulocytic ehrlichiosis(HGE) agent in ticks, adult ixodid ticks of Ixodes spp. and Haemaphysalis spp. were collected from the high mountain areas of Kangwon Province. Using DNAs extracted and purified in the collected ticks, polymerase chain reaction (PCR) was performed to amplify the specific nucleotide sequences of both agents. Of the 516 ticks, a total of 68 (13.2%) ticks was positive for Borrelia burgdorferi sensu lato with PCR analysis (2 for B. burgdorferi sensu stricto; 1 for B. afzelii; 33 for B. garinii; 8 for B.tanukii; 4 for B. turdae). However a little more than half of PCR-positive ticks (37/68) was found to be positive in the southern blot analysis with Bl6S oligonucleotide probe. One hundred and one (19.2%) ticks were positive for Ehrlichia spp. in PCR, and a quarter of them (25/101) was positive in southern blot with E16S oligonucleotide probe. But none of them was found to be the DNA of HGE agent. And 0.6% (3/516) ticks were positive for both of B. burgdorferi sensu lato and Ehrlichia spp. These findings might implicate the possibility of the outbreak of lyme borreliosis and ehrlichiosis in Korea, and more extensive studies may be need for the diagnosis of multiple tick-borne diseases.

저수준 하드웨어에서 구동 가능한 3D아케이드 게임

이용운, 김수균, 안성옥 배재대학교 공학연구소 2011 공학논문집 Vol.13 No.1

Arcade games created after the game, and I still getting a lot of attention in the games category. Arcade games with cute graphics, is characterized by providing things to do. In this paper, these characteristics utilizing 3D arcade game is aimed at making. In particular, the game engine without the use of the whole process by making DirectX libraries by using only low-level PC that can be used in the benefits and advantages are efficient in terms of memory.