• The Korean Publising Journal, Monthly
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• s.81
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• pp.16-17
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• 1991

특정작가나 한 작품만을 대상으로 한 여러 연구자들의 다양한 논의를 한데 묶은 단행본 출간이 점차 활기의 조짐을 띠고 있다. 이와 함께 각종 문학지들도 매호 작가론 특집을 경쟁적으로 수록하고 있어 주목을 끄는데, 이는 곧 우리 문학연구의 폭과 깊이가 어느 수준에까지 이르러 있는가를 반영하는 작업들로 받아들여진다.

• Journal of the Korea Computer Graphics Society
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• v.20 no.2
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• pp.1-11
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• 2014

The quality of 2D-to-3D conversion depends on the accuracy of the assigned depth to scene objects. Manual depth painting for given objects is labor intensive as each frame is painted. Specifically, a human is one of the most challenging objects for a high-quality conversion, as a human body is an articulated figure and has many degrees of freedom (DOF). In addition, various styles of clothes, accessories, and hair create a very complex silhouette around the 2D human object. We propose an efficient method to estimate visually pleasing depths of a human at every frame in a monocular video. First, a 3D template model is matched to a person in a monocular video with a small number of specified user correspondences. Our pose estimation with sequential joint angular constraints reproduces a various range of human motions (i.e., spine bending) by allowing the utilization of a fully skinned 3D model with a large number of joints and DOFs. The initial depth of the 2D object in the video is assigned from the matched results, and then propagated toward areas where the depth is missing to produce a complete depth map. For the effective handling of the complex silhouettes and appearances, we introduce a partial depth propagation method based on color segmentation to ensure the detail of the results. We compared the result and depth maps painted by experienced artists. The comparison shows that our method produces viable depth maps of humans in monocular videos efficiently.

• Journal of Soil and Groundwater Environment
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• v.7 no.3
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• pp.71-77
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• 2002

This research was carried out from 2001. 4 until 2001. 5 in order to examine the level of soil contamination in the vicinity of Nanjido. The sampling was done at near the Nanjido soil. At the each sampling site we did the sampling at different depth- surface(0~15cm deep), 1m deep, 2m deep, 3m deep. The contamination of Cd, Cu, Pb, As, $Cr^{+6}$, and Hg were tasted and analysed by spectra AA. The examination showed that the average concentration level of the entire sampled soil was Cd, 0.229mg/kg, Cu 8.349mg/kg, Pb : 11.083mg/kg, As : 0.298mg/kg, $Cr^{+6}$ : 0.124mg/kg, and Hg : 0.134mg/kg. The concentration level of at the depth of 0-l5cm, came out to be Cd : 0.305mg/kg, Cu : 8.464mg/kg, Pb : 11 383mg/kg, As : 0.128mg/kg, $Cr^{+6}$ : 0.153mg/kg, and Hg : 0.092mg/kg. It shows that in the cases of Cd and C $r^{+6}$ the average concentration level of the whole sampled soil was about 80% of that of 0-l5cm depth. And as for Hg and As. the average concentration level of the entire sampled soil came out to be approximately twice as high as the sample soil from the depth surface, As for Cu and Pb, there was not much difference between the entire samples average concentration level and the concentration level of surface. It was hard to find much relationship between the depth of each site where sampling was done and the level of concentration, the concentration level of Pb and Cu at the sampling site C and E was quite high, which suggests that it has been affected by the polluted the hyang-dong stream and fill random up waste.

• Journal of Periodontal and Implant Science
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• v.26 no.3
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• pp.567-577
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• 1996

탈회냉동건조골 (DFDBA)과 ePTFE막을 사용한 경우와 ePTFE만을 사용한 경우의 조직유도 재생술의 효과를 관찰하였다 . 12명의 환자에서 12개의 골내낭결손부(한 환자당 하나의 결손부)를 통상적인 치주수술 시행한 경우를 대조군(GFS)으로 , 12명의 환자에서 12개의 결손부는 ePTFE(GTR)막 만으로 , 또 다른 환자의 12개결손부는 ePTFE+DFDBA로 시행하였다. 창상안정과 감염방지를 강조한 술후계획이 사용되었다. 술후 6개월째 임상적 치유상태를 평가 하였다. 대조군에서 치주낭깊이, 부착수준, 탐침골깊이, 치은퇴축의 각각의 평균치는 $3.4{\pm}1.3mm$, $2.0{\pm}1.2mm$, $1.3{\pm}2.0mm$, $-1.7{\pm}0.8mm$, GTR 군에서는 $4.3{\pm}l.3mm$, $3.1{\pm}1.5mm$, $4.2{\pm}2.2mm$, $-11{\pm}1.4mm$ 그리고 GTR+DFDBA 군에서는 $3.4{\pm}2.1mm$, $2.4{\pm}1.9mm$, $2.6{\pm}1.6mm$, $-1.2{\pm}1.7mm$를 보였다. 대조군과 GTR+DFDBA 군의 술전 평균 치주낭깊이는 각각 $6.9{\pm}1.1$, $7.4{\pm}1.2$, $7.0{\pm}2.0mm$였다. GTR, GTR+DFDBA군에서는 뚜렸한 치주낭감소와 부착획득을 보였다(P<0.01). GTR, GTR+DFDBA 에서는 대조군에 비해 탐침골수준의 뚜렷한 향상을 보였으나(P<0.001), GTR 과 GTR+DFDBA 사이에는 뚜렷한 차이가 없었다. 이 실험결과로 골내낭 결손부에서 GTR과 GTR+DFDBA의 사용은 골형성을 제외한 임상결과 에서 대조군과 유사한 결과를 보였다.

• Journal of Educational Research in Mathematics
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• v.11 no.1
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• pp.123-136
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• 2001

우리나라 중학교 2학년 학생들은 제3차 수학.과학 국제비교연구인 TIMSS와 그 반복연구인 TIMSS-R의 수학 검사에서 최상위권의 성취 수준을 보임으로써 국내외 연구자들의 관심의 초점이 되어 왔다. 이 논문은 우선 우리나라 학생들이 높은 성취 수준을 기록할 수 있는 원인을 $\circled1$ 체계적인 수 세기 방식, $\circled2$ 상급 학교 진학을 위한 시험의 대비, $\circled3$ 수학 교사 의 능력, $\circled4$ 교육과정과 검사와의 관련성, $\circled5$ 검사에 대한 태도라는 다섯 가지 측면에서 탐색하였다. 또한 높은 성취 수준 이면에 드리워진 부정 적인 측면을 조망하여 $\circled1$ 공학적 도구 의 이용에 대한 소극성, $\circled2$ 실생활 관련 문장제에 대한 저조한 성취 수준, $\circled3$ 지역에 따른 성취 수준의 차이, $\circled4$ 수학에 대한 부정적인 태도의 네 가지로 요약하였다. 또한 TIMSS-R 의 수학 성취 수준에 대한 성별 차이를 $\circled1$ 친숙함/생소함, $\circled2$ 대수/기하, $\circled3$ 자유반응형/선택형이라는 세 가지 측면에서 분석하였다. 마지막으로 국제비교 연구의 결과는 국가별 평균성취 수준의 양적인 비교에 초점을 두기보다는, 성취도 이면에 깔린 다양한 요소에 대한 복합적인 고려와 깊이 있는 분석을 통해 수학교육의 현 상태를 점검하는 하나의 잣대로 이용해야 한다는 점을 지적하였다.

• Journal of the Korean Data and Information Science Society
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• v.20 no.5
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• pp.797-807
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• 2009

In a case of an automobile rear-end collision, scale of the collision which are the extent of vehicle damage and the injury of the passenger is affected by the speed change. Based on the photographic interpretation of the actual accident cases in the Seoul and the Incheon area, this study measured the depth of crush and calculated the speed change from the statement data of the accident and speed, and also injury data such as diagnosis, hospitalization days are collected. The period of hospitalization and diagnostics claimed proves to have no statistical correlation with the depth of vehicle crush and speed change. Based on the statistical analysis from this study and previous foreign studies, we found that there have been 78.1% of personal accidents didn't reach the injury threshold. There should be objective information on the scale of accident accepting the claims-to-be-injured in the future, and application of injury threshold level suggested are considered to be very useful.

• KSCE Journal of Civil and Environmental Engineering Research
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• v.34 no.1
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• pp.73-85
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• 2014

The CFT (Concrete Filled steel Tubes) column-footing connection is cast-in-place embedded type which provides simple construction procedure, low cost, and superior structural performance. In this study, CFT column-footing connection of modular pier is proposed and structural performance is evaluated by experimental tests. To evaluate structural performance of the CFT column-footing connection, a series of experimental tests were performed for the 4 specimens with different embedded depth. As a result of the quasi-static test, the specimen with 0.6D (0.6 times the outside diameter of steel tube) embedded depth showed relatively low ductility than other specimens with larger embedded depth due to cone failure of base concrete occurred during the lower loading step. On the contrary, cone failure of the base concrete was not observed in the specimens with larger embedded depth than 0.9D, but typical flexural failure in lower part of CFT column was observed. With the analyses of force-displacement curve, displacement ductility, and energy dissipation capacity, it is concluded that the rational range of embedded depth of the CFT column-footing connection is from 0.9D to 1.2D in view of good seismic performance.

• Restorative Dentistry and Endodontics
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• v.31 no.1
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• pp.66-71
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• 2006

To evaluate the ratio of gutta-percha area in the canal after canal obturation with Continuous Wave of Condensation Technique (CWCT) with varying depths of plugger penetration, forty root canals of extracted human teeth were prepared up to size 40 of 0.06 taper with $ProFile^{(R)}$. Canals of three groups were filled with CWCT with System $B^{TM}$ (Analytic Tech. , USA) and different plugger penetration depths of 3, 5, or 7 mm from the apex. Canals of one group were filled with lateral condensation technique as a control The felled teeth were cross-sectioned at 1, 2 and 3 mm levels from the apical foramen. The ratio of gutta-percha area in the canal was analyzed using $Auto^{(R)}$ Cad 2000. Data were analyzed with one-way ANOVA and Duncan's multiple range test. At all levels, higher gutta-percha area ratio was found with deeper plugger penetration depth in CWCT, and cold lateral condensation group showed higher ratio than group of plugger penetration to apical 7 mm in CWCT. At apical 1 mm and 2 mm levels, group of plugger penetration to apical 3 mm showed significantly high or gutta-percha area ratio than those of apical 7 mm and lateral condensation (p<0.05). It is concluded therefore that, under the conditions of the present study, deeper plugger penetration depth results in more favorable and efficient obturation in CWCT.

• Journal of Korea Multimedia Society
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• v.9 no.1
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• pp.41-50
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• 2006

This paper aims to improve the efficiency of a 3D-graphic software engine in a PDA platform and the performance of a rasterizer. There are many problems in implementing a software engine in a mobile platform, due to its relatively weak processing power. Taking the advantages and complementing weaknesses of the depth-sort algorithm and the Z-buffer algorithm, we implemented an adaptive Z-buffer algorithm and proved its performance on several PDA platforms. Our algorithm was evaluated to have midway speed compared with two conventional algorithms. It also removed reversal errors in comparison with the depth-sort algorithm.

• Journal of Korea Society of Industrial Information Systems
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• v.25 no.6
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• pp.85-94
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• 2020

The importance of organizational learning is increasing. Drawing on regulatory focus theory and upper echelon theory, this study aims to identify the relationship of the regulatory focus of managers and three aspects of organizational learning, namely breadth, depth, and speed of organizational learning. While identifying the significant influence of promotion focus on the three aspects of organizational learning, we found that the influence of promotion focus of breadth of organizational learning is statistically stronger than that of prevention focus.