• 천문학회지
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• 제36권1호
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• pp.43-48
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• 2003

We introduce and describe performance of the 6-meter telescope of Seoul Radio Astronomy Observatory (SRAO). All the softwares and instruments except the antenna structure and its driving system are developed for ourselves. The SIS mixer type receiver resulted in the receiver noise temperature less than 50 K (DSB) over the whole 3-mm radio window. An autocorrelation spectrometer, developed first in Korea, provides maximum 50 MHz band width over 1024 channels. Antenna surface is measured and adjusted using template method and radio holography which resulted in a superb surface accuracy bet-ter than 30${\mu}m$. Accordingly, the aperture and beam efficiences amount to $70\%$ and $75\%$, respectively, largely independent of frequency in the 85 - 115 GHz range. It is also found that telescope pointing errors are less than 10" in both azimuth and elevation and that antenna gain is almost constant against elevation greater than $20^{\circ}$, without adjusting sub-reflector position. The SRAO 6-meter telescope is now fully operational and all these characteristics verify that observations are carried out with high precision and fidelity.

• 한국수정란이식학회지
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• 제26권4호
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• pp.283-286
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• 2011

Canine pyometra generally occurs in intact female dogs of more than four years of age. However, in rarely cases, pyometra can occur in young bitches. In the present report, two cases of pyometra in thirteen and eighteen months of age were presented. In both cases, absent of vaginal discharge represented that both patients had closed-cervix pyometra and diagnosis was somewhat complicated. In complete blood count, elevated level of leukocyte with left shift was found in both cases. Serum chemistry analysis showed elevation of alkaline phosphatase in both cases. Additionally, mild elevation of aspartate transferase and total protein were also found in $2^{nd}$ case. Radiographic and ultrasonographic findings show the enlargement of uterus and accumulation of fluid contents inside the uterine lumen. Ovariohysterectomy followed by antibiotics and anti-inflammatory drugs for post-surgery medication was performed for treatment. After a week, both patients fully recovered. To reduce mortality of pyometra in young intact female dogs, radiography or ultrasonography should be indicated immediately in the bitches showing severe infectious inflammation.

• 한국측량학회지
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• 제26권2호
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• pp.111-116
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• 2008

본 연구는 무선조정 헬리콥터에 1000만 화소 카메라인 비측량용 카메라를 장착하였다. 그리고 상공에서 촬영되는 영상을 지상에서 제어하면서 중복도를 고려하여 촬영하였다. 획득된 영상으로부터 영상정합에 의해 불규칙 삼각망을 추출하여 수치표고모형(DEM)을 나타낼 수가 있었으며, 재래적인 측량방식인 Total Station에 의해 관측된 기준점 및 검사점과의 정확도를 비교 검토한 결과 X방향으로는 $-0.194{\sim}0.224m$, Y축으로는 $-0.088{\sim}0.180m$, Z축으로는 $-0.286{\sim}0.285m$ 정도의 오차를 얻을 수 있었다. 또한, 검사점에 대한 오차의 RMSE를 표현하면, X축 방향으로 0.021388m, Y축 방향으로 0.015285m, Z축 방향으로 0.041872m로 나타났다. 이러한 사진촬영 및 분석방법으로 기존의 Total Station 측량방법보다 더 많은 지형표고자료를 취득하는데 좋은 방법이라 판단된다.

• 한국농촌건축학회논문집
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• 제14권4호
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• pp.55-65
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• 2012

Urban traditional housing is a type of the urban housing which have developed by itself from the traditional vernacular houses and it has continued with a traditional feature in the westernization and modernization affection of Korea. Also, the urban traditional housing is still one of the housing in the present and it makes a urban village with a rich culture benefit and fresh natural environment. The purpose of this study is to analyze the periodical characteristics of urban traditional house in korea's provincial town Gyeongju. The local range is Hwang-Nam Hanok Conservation Area in Gyeongju and the period range is 1874~2000s. So the first period from 1874 to 1909, the second period is 1910 to 1945, the third period is 1946 to 1969, the fourth period is 1970s, and the fifth period is since the 1980s. This classification will be considered of the social phenomenon at the time. The total number of target houses are 8 houses. They were analyzed by layout, floor plan, and elevation characteristics of urban traditional house. For structure of this study, Chapter 1, establishes the goal and range of study. Chapter 2, 3, examines distinctions of urban traditional house with traditional house, and meaning of urban traditional house, and transition of urban traditional house. Chapter 4, establishes formality to analysis, and performed from plan to elevation analysis, observation survey, and interview through door-to-door survey, and clarifies trend and characteristic of urban traditional house's change by integrating the results, and Chapter 5, is results integrating the above studies.

• 한국항행학회논문지
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• 제7권2호
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• pp.101-107
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• 2003

본 연구에서는 이동하면서 BS/CS 대역의 무궁화3호위성 신호를 수신할 수 있도록 42도 이상의 틸팅각을 갖는 새로운 구조의 패치안테나에 대해 제시하였다. 본 안테나의 구조는 패치 다이폴을 직렬 배열한 대수 주기형 안테나와 개구결합을 이용한 급전 구조로 이루어 졌다. 테이퍼드 슬롯에 8 개의 직렬 패치 다이폴이 수직으로 놓여짐으로써 각 패치 다이폴에 직렬 급전이 된다. 직렬 급전된 패치 다이폴의 방사는 BS/CS 대역에서 메인 빔의 방향이 $37^{\circ}{\sim}42^{\circ}$를 형성하였고, 이득은 9.31~11.03 dBi로 측정되었다. 32개의 엘레멘트를 $4{\times}8$로 적절히 배열하면 24 dBi 이상의 이득과 40-48도 내외의 앙각이 형성되어, 무궁화 3호 위성의 이동체 탑재용 안테나에 적용이 가능하다.

• 한국환경과학회지
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• 제13권6호
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• pp.497-503
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• 2004

In this research, we have performed a T-test to see how the relationship between dependent variable or visual point level and independent variable or visual quantity is in order to clear up the correlation between pattern of visual point and visual quantity by the constituents of a view from a different visual point level and the results are as follows: 1) In case of the character of Mt. Uam landscape of the city, Uamsan is set as a fixed point and about a direction of view(D), the north is a datum point from which the range of direction is distributed within 1800 westwardly and the visual range(R) is also within 2000m. An elevation is an average of 7.40 and the average story of the buildings is 3.85. Here the height of a story is about 4m so the average of the visual point difference is estimated at 15.4m. 2) The type of visual point is divided into the intersection group and the front of the highly used public buildings group. Double intersection types account for about 78.80%(52 spots) which forms a majority part of LCP. 3) The analysis of the difference of visual point level divided by eye level and that of the top of the buildings has been proved that there's a sharp difference resulted from t-test at 1 % significant level. The significant difference of elevation from height difference(l5.93m), however, has not been shown. 4) From the result of T-test about visual quantity by the elements of a view from a different visual point level, the visual quantity of mountain(VQM), sky(VQS), ground(VQG) is significant at about 1% each and that of building(VQB) is at about 5%. The difference in visual quantity of a mountain by the visual point level is at about 4% which can meet a marginal level of LCP necessary for evaluation of mountainscape.

• Journal of Gastric Cancer
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• 제3권1호
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• pp.33-37
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• 2003

Purpose: Alpha-fetoprotein (AFP) is widely accepted as a useful tumor marker for diagnosis of hepatocellular carcinomas. On rare occasions, however, an abnormal elevation of serum AFP also has been reported in an adenocarcinoma of the gastrointestinal tract. We evaluated the influence of preoperative abnormal elevation of serum AFP (AFP positivity) on the prognosis of resectable gastric cancers. Materials and Methods: 812 gastric cancer patients, who were investigated for serum AFP before their operations and who underwent gastric resections with D2 or more extended lymph node dissection, were enrolled in the study. The survival rates were calculated by using the Kaplan-Meier method and were compared by using the log-rank test. A multivariate analysis was performed using the Cox proportional hazards model. Results: Fifty patients ($6.2\%$) were AFP positive (10.1. 4322.6 ng/ml). The survival rate of the AFP positive group was significantly lower than that of the AFP negative group ( $46.6\%\;vs.\;67.0\%$; P=0.0002). The depth of tumor invasion, the degree of regional lymph node metastasis, distant metastases, the TNM stage, the gross type, differentiation, the extent of gastric resection, and the curability of the surgery also significantly influenced survival. Multivariate analysis revealed that the depth of tumor invasion, the degree of regional lymph node metastasis, the curability of the surgery, and AFP positivity were independent prognostic indicators. Conclusion: Preoperative serum AFP can be used as an independent prognostic factor of resectable gastric cancer.

• 건축역사연구
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• 제18권2호
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• pp.7-26
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• 2009

The purpose of this paper is the study on the architectural characteristics revived from the roman architecture, focused on the early renaissance architecture building. The results of study are as follow: 1. The composition system of Domus which is formed of urban house in the Roman period is presented by spatial arrangement of palace architecture centering around atrium in the Renaissance period. Thus plan type of Domus is used by atrium from which is composed of peristyle from the palace and villa in the Renaissance period. 2. The circular temple in the Roman period is composed of element such as podium, stair, peristyle centering around the basic circular plan. Bramante planed to revive above elements for the Tempietto to concept from the circular temple in the Roman period. 3. The triumphal arch in the Roman period is strong monument to the independent building in the city, but thus arch is used of church facade as the important example which is composed with building elevation in the Renaissance period. 4. The composition system and element of Roman temple which is planned to rectangular plan is composed of high podium, stair, portico, prostyle and pediment. The facade plan of church is used by the partial elements and total elements perfectly from the temple in the Roman period. 5. The linearly successive and repetitive composition which is composition system and element of aqueduct arches of same dimension shows to the palace facade, arcade for gallery space and side elevation plan of S.Fracesco church. 6. Such as background of Colloseum, Rucellai palace can be called good example which is created by the new architectural form to the creative starting point from the classical architecture from.

• 한국주거학회논문집
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• 제21권1호
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• pp.23-30
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• 2010

The purpose of this study is to analyze the elevations of standard rural house designs after the 1990's. Various types of analysis were carried out on a total of 18 different sizes and 50 types of designs with p'yong sizes ranging from 12 to 44. The objects of analysis are the various elevations & the roof types that were supplied in the standard rural house design according to each year 1995 (8 sizes 20 types), 1997 (8 sizes 8 types), 1998 (l size 8 types), 2000 (2 sizes 4 types), 2001 (2 sizes 4 types), and 2004 (3 sizes 6 types). Results from the analysis demonstrate that (1) The gable roof has been used as the roofing type for standard rural house design since 1990. However the roof types of the standard rural house design includes only a few different types of gable roofs and roof materials(most roof types use asphalt shingle). (2) While most front elevations have been altered from asymmetrical to symmetrical most rear elevations have evolved from symmetrical to asymmetrical proportions since the 1990's (3) While siding materials and red-brick were most commonly used the main outer-wall materials prior to 2000, environmentally-friendly materials have been used as outer-wall materials since 2000. (4) In terms of the analysis of outer-wall objects before 2000 the walls were even, yet after 2000 these outer-walls evolved to become concave-convex walls. In other words, the evolution of the outer-wall has included a variety of wall types.

• Journal of Forest and Environmental Science
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• 제30권1호
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• pp.91-100
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• 2014

This research was conducted on the conservation area of Baekdudaegan, Kangwondo under the purpose of evaluating bio-diversity according to the changes of spatial scale, using GIS data and spatial filtering method. The diversity index was calculated based on the information of species of The $5^{th}$ forest type map using Shannon-weaver index (H'), evenness index ($E_i$) and richness index ($R_i$). The diversity index was analyzed and compared according to the changes of 12 spatial scales from Kernel size $3{\times}3$ to $73{\times}73$ and basin unit. As for H' and $R_i$, spatial scale increased as diversity index decreased, while $E_i$ decreases gradually. H' and $R_i$ was highest; each 1.1 and 0.6, when the Kernel size was $73{\times}73$, while $E_i$ was 0.2, the lowest. When you look at according to the basin unit, for large basin unit, 'YeongDong' region shows higher diversity index than 'YeongSeo' region. For middle basin unit, 'Gangneung Namdaecheon' region, and for small basin unit, 'Gangneung Namdaecheon' and 'Gangneung Ohbongdaem' region shows high diversity index. When you look at the relationship between diversity index and Geographic factors, H' shows positive relation to curvature and sunshine factor while shows negative to elevation, slope, hillshade, and wetness index. Also $E_i$ was similar to the relationship between H' and Geographic factor. Meanwhile, $R_i$ shows positive relationship to curvature and sunshine factor, while negative to elevation, slope, hillshade, and wetness index. macro unit diversity index evaluation was possible through the GIS data and spatial filtering, and it can be a good source for local biosphere conservation policy making.