• 대한교통학회지
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• 제21권2호
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• pp.17-31
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• 2003

신호교차로에서 우회전 공용차로의 통과교통량은 여러 가지 요인에 영향을 받기 때문에 복잡하다. 본 연구는 기존의 용량분석에서 고려하지 못하고 있는 공용차로의 폭이 우회전 공용차로 통과교통량에 미치는 영향을 분석한다. 우회전 전용차로가 있는 경우와 순수하게 공용차로로 운영되는 경우의 중간단계에 있는 경우를 대상으로 한다. 공용차로의 폭원별로 이동류별 교통량, 차두시간. 손실시간, 여유폭 이용율을 분석하였으며 주요 결과로는 공용차로의 폭이 갓길을 포함하여 4.1m이상일 때 통과교통량 증가가 나타나기 시작하였으며, 4.6m일 때 한국도로용량편람 방법에 의한 통과교통량보다 2배 이상 큰 것으로 분석되었다.

• Journal of Periodontal and Implant Science
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• 제27권3호
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• pp.549-559
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• 1997

The purpose of this study was to evaluate clinical changes in graft size after treatment with strip gingival autograft in human. 57 premolar teeth in 27 patients having the following mucogingival problems were selected. The width of extension, attached gingiva including free marginal gingiva, width of transplant and clinical sulcus depth were measured at the initial examination, 2, 12 and 24 weeks following the strip gingival autograft and free gingival autograft. The change of width of extension, attached gingiva including free marginal gingiva, width of transplant and clinical sulcus depth according to healing process in both graft procedures was statistically analyzed by repeated measure ANOVA test and independent t-test using SPSS program. The results were as follows : 1. The change of keratinized gingiva in both graft procedures was increased significantly at 24 weeks post-op. 2. The clinical sulcus depth exhibited no marked changes throughout the entire investigation in both graft procedures. 3. No dimensional variation was seen in graft size in both graft procedures. 4. Shrinkage did not differ significantly in both graft procedures. From the day of grafting to 24 weeks after surgery the percentages of shrinkage were : strip gingival autograft 28% and free gingival autograft 29%.

• 대한가정학회지
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• 제20권3호
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• pp.9-18
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• 1982

In this study, we attempted to make an original pattern of clothing for an abnormal type of figure, especially for the type of kyphosis. We measured the curvature of the spine of a woman with kyphosis with a Martin measuring instrument and a silhouetter in the following ways. First, we counted the rate of shrinkage of the standard lines drawn on the surface of the body according as the body moved. Secondly, placing the front and back darts, the front and back shoulder darts and the side darts according to“Munhwa”pattern, we made cubic cuttings of four moving postures as well as the standing one. Thirdly, we superposed the developed patterns of the standing and the moving postures, measuring the position change and the amount of the chaange of the darts, and compared them. The results are as follows: 1) In the developed pattern of a cubic cutting of the basic pattern and the standing posture, the neckhole became larger than that of the basic pattern, and the waist line was lowered than that of the basic pattern because the center back line was shortened due to the curved backbone. 2) As for the change of the standard line according to the movement, we found that the waist line, the center front line, the center back line, the bust width line, the upper back width line and the back width line became longer. Special consideration must be given to the function of the clothing for an abnormal type of figure. 3) The difference of the measurements between the cubic cutting and the body measurement regardless of the body movement is due to a gap by an acute angle at the jutted place between the developed pattern and the body surface. We found that the body measurement of the upper back width line, the back width line and the bust line became larger. Consequently, in making an original clothing pattern, it is desirable that we must not place the front and the back waist darts at the jutted place on the back from the functional and the aesthetic viewpoint of clothing. It is also desirable that we must widen the neckhole because the shoulder angle is close to a straight line due to a jut of the upper back width line.

• Journal of the Korean Association of Oral and Maxillofacial Surgeons
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• 제35권4호
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• pp.229-239
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• 2009

The purpose of this study is to evaluate the change in condylar position, width, and angle before and after orthognathic surgery using 3-dimensional computed tomograph. Pre and posterative 3-D CT was taken on 38 patients and through axial, frontal, sagittal measurements and by 3-dimensional reconstruction, the changes in condylar postion, mandibular width and angle were analyzed and others such as the difference in gender, operation and fixation method, setback length and in relation with temporomandibular disorders were done together too. The results were as follows: The inward rotation of condyle in axial condylar angle, the forward movement of right condyle in sagittal anterior-posterior distance, the superior movement of both condyles in sagittal superior-inferior distance, the decrease in gonial angle, the increase in mandibular width, the decrease in distance between the axial coronoid process distance and the increase in the frontal intercondylar distance were statistically significant. There were no statistically significant changes in gender difference, however in the difference in operation method, change in the gonial angle was observed and there was more change in bilateral sagittal split osteotomy group compared to two-jaw surgery group. In the difference in fixation method, the decrease in axial coronoid process distance and the change in sagittal anterior-posterior distance were statistically significant. In the difference in setback, the increase in setback didn't relate directly with the increased change in condyle position. In the relation with temporomandibular disorder, changes in left axial condylar angle and axial coronoid process distance were statistically significant. Changes in condylar position could be observed after the orthognathic surgery but it doesn't seem to have much of a clinical importance. The orthognathic surgery is effective in decreasing the mandibular angle, and it is not related with the temporomandibular disorder.

• 한국콘크리트학회:학술대회논문집
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• 한국콘크리트학회 2006년도 춘계학술발표회 논문집(I)
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• pp.314-317
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• 2006

In the present study, design methodologies for effective width of slabs in slab-column connections were evaluated in comparison with the experimental results on the full-scale slab-column connections. The design methodologies are as follows: the methodology proposed by Jacob S. Grossman and the methodology proposed by Choi & Song. The former does not predict the stiffness change of the slab-column connection due to the change in the column section shape and the latter overestimates the stiffness when edge length of the column section in the loading direction is long. Accordingly, the equation to calculate the effective width of slabs should be modified to reflect the effect of the change in the column section shape.

• 한국전자파학회:학술대회논문집
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• 한국전자파학회 2002년도 종합학술발표회 논문집 Vol.12 No.1
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• pp.241-245
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• 2002

Dual-band microstrip antenna is designed for industrial-scientific-medical(ISM) band of 2.4㎓ and 5.8㎓ using finite-difference time-domain method(FDTD). Cross Patch fed by aperture in the ground plane of microstrip line is proposed as radiation element of antenna, which is 2 rectangular Patch is overlapped. To design antenna, change of input impedance by aperture and stub length change is examined. And it is investigated that center frequency and -10 ㏈ bandwidth by Length of radiation element and width change. Experimental result about reflection Loss confirmed that agree well with analysis results of FDTD and IE3D, And -3 ㏈ beam width, front to back ratio and gain in frequency 2.43㎓ and 5.79㎓ is presented by measuring radiation Pattern of antenna.

• 한국해안·해양공학회논문집
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• 제23권3호
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• pp.215-225
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• 2011

케이슨 방파제의 설계는 구조물의 기능을 유지하면서 일정 피해를 허용하는 성능설계를 권장한다. 하지만 기존 성능설계 방법은 기후변화로 변화된 해양 환경을 설계에 반영하기 어려워 구조물의 수명 동안에 안정성을 보장할 수 없다. 따라서 본 연구에서는 대표적인 기후변화 효과인 해수면 상승과 파고의 증가를 고려한 시간 의존 성능설계를 수행하여 케이슨의 기대활동량과 파괴확률을 산정하였다. 특히, 해수면 상승과 파고의 증가가 시간의 함수로 표현되어 케이슨 활동에 대해 시간 의존 파괴확률을 계산하였다. 개발된 방법을 일본 동해안에 위치한 Hitachinaka항 동방파제에 적용하였다. 해수면 상승보다 파고의 증가가 구조물의 안정성에 훨씬 큰 영향을 주는 것으로 분석되었는데, 이는 해수면 상승 폭이 구조물 전면 수심에 비해 상대적으로 아주 작기 때문이다. 또한 설계자들의 실제적인 관심사인 기후변화에 의한 케이슨 단면 폭의 변화를 산정하였다. 구조물의 설계수명이 커질수록 단면 폭의 증가가 컸으며, 현재 폭이 약 22 m인 Hitachinaka 방파제 케이슨은 기후변화 효과인 파고의 선형 및 포물선 증가에 의해 단면 폭이 각각 0.5m와 1.5m 내외로 증가된다.

• 한국의상디자인학회지
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• 제15권1호
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• pp.21-30
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• 2013

The purpose of this study is to recognize the differences of visual evaluation by variations in silhouette of the wide pants. The stimuli are 9 samples: One control group, 3 variations of the width of hem line and 3 variations of the silhouette. The data has been obtained from 57 fashion college students. The data has been analyzed by Factor Analysis, Anova, Scheffe's Test. The results of the study are as follows: The visual evaluation by silhouette of wide pants are composed of 5 factors(i.e., physical characteristics, complexity, attractiveness, originality, and stiffness and softness). Among these factors, the physical characteristic is evaluated to be the most important factor. The straight pants were the most attractive and modern when the width of the hem line was 66cm (1st stage), while the pants were uncomfortable and unwearable when the width of the hem line was 98cm (3rd stage). The bell-bottom pants were evaluated to be the most attractive with the average width of the hem line. When the width of the hem line of the flare pants were too wide, it was uncomfortable and unwearable but had its unique originality. When the width of the hem line was narrow, the visual image changed as the pants' silhouette varied. However, when the width of the hem line was wide, the visual image did not change by silhouette.

• 대한치과교정학회지
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• 제26권2호
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• pp.197-204
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• 1996

이 연구는 악안면 영역의 심미적 개선에 필요한 미소의 형태에 대한 기준을 설정하기 위하여 시행하였다. 성인 정상교합자 62명(남자;30명, 평균연령;22.7세, 여자;32명, 평균연령;21.8세)을 대상으로 안정위시와 미소시의 얼굴 정면 사진을 촬영하였고, 미소시 입술의 형태변화, 그리고 입술과 치아와의 관계를 계측, 분석하였다. 이 연구로 부터 얻어진 결과는 다음과 같다. 1. 하순 상연의 만곡과 상악 절단연과의 평행관계인 smile line ratio는 0.09이었고, buccal corridor ratio는 0.63, smile symmetry ratio는 0.96이었다. 2. 미소시 양 구각주 간의 거리는 안정위시 구각부 간 거리의 1.31배였으며, 얼굴 폭의 0.48배였다. 3. 미소시 상순의 수직길이는 안정위시 길이의 0.69배였고, 하순의 수직길이는 안저위시 길이의 0.96배였다. 4. 상악 전치의 노출량은 9.96mm이었고, 상악 전치의 노출은 미소시 상순의 수직길이의 변화율이 었고, 미소시 구각부 길이의 비, buccal corridor ratio등과 관계 깊었다.

• 한국도로학회논문집
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• 제17권1호
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• pp.83-90
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• 2015

PURPOSES : The purpose of this study is to investigate the relationship between the crack propagation depth through a slab and crack width movement in continuously reinforced concrete slab systems (CRCSs). METHODS : The crack width movements in continuously reinforced concrete pavement (CRCP) and continuously reinforced concrete railway track (CRCT) were measured in the field for different crack spacings. In addition, the crack width movements in both CRCP and CRCT were simulated using finite element models of CRCP and CRCT. The crack width movements, depending on the unit temperature change, were obtained from both the field tests and numerical analysis models. RESULTS : The experimental analysis results show that the magnitudes of the crack width movements in CRCSs were related to not only the crack spacing, but also the crack propagation depth. In CRCP, the magnitudes of the crack width movements were more closely related to the crack propagation depths. In CRCT, the crack width movements were similar for different cracks since most were through cracks. If the numerical analysis was performed to predict the crack width movements by assuming that the crack propagates completely through the slab depth, the predicted crack width movements were similar to the actual ones in CRCT, but those may be overestimated in CRCP. CONCLUSIONS : The magnitudes of the crack width movements in CRCSs were mainly affected by the crack propagation depths through the slabs.