• The Journal of the Korea Contents Association
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• v.11 no.10
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• pp.388-395
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• 2011

This study was performed to grasp the relation between the effect and the satisfaction of a mouth gymnastics program on the promotion of oral function of old persons. The experimental group of 47 old persons conducted a mouth gymnastics exercise two times every week for 12 weeks, while the control group of 39 old persons carrying out physical examinations. The mean salivary secretion in the experimental group was 0.075 ml and more than 0.046 ml in the control group. Maximum mouth opening in the experimental group, 4.12 cm, was higher than 3.92 cm in the control. Oral diadochokinesis in experimental and control group was 1.69 times per second and 1.65, respectively. The result of principal component analysis by Quartimax method with Kaiser normalization showed that program prevalence prediction of mouth-gymnastics exercise was high, and it is estimated that this exercise program would be more popular for health promotion of old persons. From the correlation analysis, mouth gymnastics exercise made salivary flow increase(r=.592), this exercise should be recommended actively for improving mouth health of old persons. Also more modification is required for old persons with difficulty in mouth gymnastics exercise. Some movements of the mouth gymnastics exercise need be modified, and then the exercise should be publicized as one of the ways to improve holistic health of the aged.

• Tunnel and Underground Space
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• v.19 no.6
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• pp.517-525
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• 2009

Stereophotogrammetry is used to extract spatial information of an interested object by constructing a stereo-image from two or more photos. In this study, the stereophotogrammetry was adopted for a rock joint survey in mine tunnels. The orientations of discontinuities were measured from two mine tunnels with a clinocompass. To evaluate the effect of photographing light level on the stereophotogrammetry analysis, the light intensity was changed within a predefined range for every photograph. Those photographs were analyzed by using a commercial code for stereophotogrammetry - ShapeMetriX 3D, and the results from the analysis were compared with the manual measurement using a clinocompass.

• Proceedings of the Korean Society of Precision Engineering Conference
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• 1994.10a
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• pp.725-730
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• 1994

2차원 도면으로부터 3차원 입체형상으로의 재구성은 CAD/CAM에서 많이 연구되어 온 분야이다. 이 논문에서는 건축에서 쓰이는 3점 소실법을 이용하여, 자유곡선을 포함하는 하나의 투시도로부터 3차원 정보를 추출하고, 그 위상학적 관계와 loop detection 알고리즘을 통해서 면정보를 추출한다. 추출된 면정보를 입체 구조로 변환하고 연속성을 부여한다. 그리고 쉬운 사용자 인터페이스를 제공하여 사용자의 의도에 맞는 적절한 입체영상을 만들어 내고자 하였다.

• Journal of Korean Academy of Nursing
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• v.42 no.6
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• pp.898-906
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• 2012

Purpose: The purpose of this study was to investigate effects of Oral Function Improvement Exercises on salivation, xerostomia and halitosis in elderly people. Methods: The participants in the study were 48 female community-dwelling elders in D city. The Oral Function Improvement Exercises were given 3 times a week, for a total of 24 times from August to October 2011. Spitting method, Visual Analogue Scale, and halimeter (mBA-21) were used to evaluate the effects of Oral Function Improvement Exercises on salivation, xerostomia, and halitosis. The data were analyzed using ${\chi}^2$-test and t-test with the SPSS program. Results: The experimental group had significantly better salivation, and less xerostomia and halitosis than the control group. Conclusion: The results indicate that Oral Function Improvement Exercises were effective for salivation, xerostomia and halitosis in the elders. Therefore, it was suggested that Oral Function Improvement Exercise are applicable in a community nursing intervention program to improve the quality of life for elders.

• Journal of Korean Society of Steel Construction
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• v.21 no.4
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• pp.433-442
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• 2009

In this paper, new three-dimensional vibration data for the solid cylinders of the N-sided polygonal cross-section with V-notches or sharp cracks are presented, and a Ritz procedure is employed, which incorporates a mathematically complete set of algebraic-trigonometric polynomials in conjunction with an admissible set of edge functions that explicitly model the tri-axial stress singularities that exist along a terminus edge of the V-notch. Convergence studies demonstrate the necessity of adding the edge functions to achieve the accurate frequencies and mode shapes of N-sided polygonal cylindrical solids with stress singularities.

• Proceedings of the Korean Society of Computer Information Conference
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• 2018.07a
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• pp.373-375
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• 2018

본 논문은 기존의 2D 전자 동화책과는 달리 유아들에게 보다 창의적이고, 극적표현력을 길러줄 수 있도록 오프라인의 출판 원작동화의 내용과 그림을 안드로이드 기반으로 3D 입체 기술을 접목시킨 인터렉티브 에듀테인먼트로 3D 입체 전자동화를 개발한다. 즉, 동화의 줄거리에 따라 살아 움직이는 장면을 인터렉티브 애니메이션 뿐 만 아니라 좀 더 생생하게 동화를 체험할 수 있는 인터렉티브 3D 입체 전자 동화를 개발한다.

• Journal of Korean Society of Steel Construction
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• v.25 no.4
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• pp.321-333
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• 2013

This study presents a practice of a scientific methodology, i.e., technology tree to describe hierarchies of functions and technologies of research projects. In this study functional developments of a well-known steel space frame truss are dealt with for an application of the technology tree process to execute the maintenance of road tunnels without blocking vehicles. It is verified that established results of technology tree process can be linked to a proof process of revealed functions and component technologies such as reference works and structural analyses. In the future the technology tree methodology can be extendedly used for an effective tool setting up research plans and developing integrated technologies of a specific item such as a steel structure.

• Korean Journal of Remote Sensing
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• v.18 no.2
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• pp.81-90
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• 2002

We carried out accuracy assessment for DEM extraction from the KOMPSAT-1 EOC stereo images over Daejeon and Nonsan in Korea. DEM generation divided into two parts. One is camera modeling and the other stereo matching. We used Orun & Natarajan's(1994) model and Gupta & Hartley's(1997) model in the camera modeling step and checked the possibility using Orun & Natarajan and Gupta & Hartley's models in EOC stereo pairs. For stereo matching, we used an algorithms developed in-house for SPOT images and showed that this algorithm could work with EOC images. Using these algorithms, DEMs were successfully generated from EOC images. The comparison of DEM from EOC Images with a DEM from SPOT Images showed that EOC could be used for high-accuracy DEM generation.

• Proceedings of the Optical Society of Korea Conference
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• 2006.02a
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• pp.289-290
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• 2006

• Journal of Korean society of Dental Hygiene
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• v.12 no.2
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• pp.293-305
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• 2012

Objectives : The purpose of this study was to confirm effects of oral exercise program intended to improve the condition of salivary hypofunction and to provide basic data for development of oral health program for the elderly Methods : The subjects were 125 elderly women who resided in Gyeong-In area and were aged 65 years and older. During a 2-month period, an oral exercise was conducted twice a week. A survey was conducted by interviewing the selected elders to determine the state of their subjective dry mouth. Unstimulated whole saliva was measured before and after the oral exercise program. Results : There was a significant improvement in subjective dry mouth symptoms, severity scores of dry mouth after the oral exercise, and there were affected by age and income level. There was a significant increase in unstimulated whole-saliva after the oral exercise program. There was positive interrelationship between dry mouth Symptom improvement level and inconvenience improvement level, and between inconvenience improvement level and the increase of unstimulated whole-saliva. Conclusions : This study showed the effects of the oral exercise program. It is suggested that this oral exercise program has positive effects on the condition of dry mouth. For the explicit improvement effect on the condition of dry mouth, the oral exercise program needs to be carried out in consideration of the elderly's general characteristics.