• 한국멀티미디어학회논문지
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• 제21권2호
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• pp.147-157
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• 2018

Alzheimer's disease has the significant factors for the both specific and characteristic features according to the disease progressing that are the volumetry and surface area by the brain hippocampus shrinking and thinning. However, we have suggested a shape analysis to calculate the variance by the roughness, coarseness or uneven surface on 3D MR images. For the reasons we have presented two methods: the first method is the distance calculation from major axis to edge points and the second method is the distance calculation from centroidal point to edge points on a coronal plane. Then we selected the shortest distance and the longest distance in each slice and analyzed the ANOVA and average distances. Consequently we obtained the available and great results by the longest distance of the axial and centroidal point. The results of average distances were 44.85(AD), 45.04(MCI) and 49.31(NC) from the axial points and 39.30(AD), 39.58(MCI) and 44.78(NC) from centroidal points respectively. Finally the distance variations for the easily recognized visualization were shown by the color mapping. This research could be provided an indicator of biomarkers that make diagnosis and prognosis the Alzheimer's diseases in the future.

• 보건교육건강증진학회지
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• 제20권3호
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• pp.19-35
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• 2003

The purpose of this study is to examine the effectiveness of video-and discussion-based smoking cessation intervention for adolescents. And this study is intended to provide a basic database for the development of health education, to serve health promotion for adolescent. The subjects were 472 high school students in K yungkido. The data was collected from September 23th to October 31 st, 2002. The data was collected by the measurement of knowledge, attitude, and intention toward smoking. Pre-research was conducted before smoking cessation education and post-research was performed twice, immediately after the education and 4 weeks later. Collected data was analyzed by using the SPSS 10.0 which is a computational statistical program. The results of this study are as follows： 1. Total knowledge points in smoking cessation program-based group are higher than any other groups and the statistical difference is significant. 2. The students' attitude points in experimental groups are higher than that of the control group and the statistical difference is significant. However, the meaningful statistical difference disappeared after 4 weeks. 3. The non-smoking students' intention points do not show any significant difference. And the smoking students' intention points in experimental groups are higher than that of the control group but the statistical difference is insignificant. 4. There are correlations among knowledge, attitude and intention toward smoking： knowledge and attitude are negatively correlated, knowledge and intention are positively correlated for non-smoking students, and for smoking students, attitude and intention have a negative correlation.

• 한국지능시스템학회논문지
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• 제26권6호
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• pp.505-510
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• 2016

본 논문은 모바일 로봇의 SLAM(Simultaneous Localization and Mapping) 구현 시 사용되는 스캔매칭을 위한 회전오차에 강인한 대응점 탐색 기법을 제시한다. 많은 모바일 로봇의 연구에 차동구동방식의 구동부가 사용되는데, 이는 곡선 주행이나 제자리 회전을 위해 두 모터의 속력을 다르게 하거나, 반대 방향으로 제어하게 된다. 이러한 경우 직선 주행에 비해 비교적 바퀴의 미끄러짐 현상(Wheel Slip)을 심화시켜 모바일 로봇의 누적 위치 오차를 증가시키는 요인이 된다. 따라서 본 논문에서는 모바일 로봇의 회전 반경을 기반으로 최근접점을 추출하는 대응점 탐색 기법을 통해 스캔매칭 성능을 향상시키고자 한다. 제안된 방법의 검증을 위해 LRF(Laser Range Finder)를 이용해 실험을 진행하였으며, 기존 알고리즘에 주로 적용되는 유클리디안 최근접점 기반의 대응점 탐색 알고리즘과 비교한 결과, 제안된 대응점 탐색 기법이 보다 정확하게 대응점 집합을 추출하는 것을 확인했다.

• 대한영양사협회학술지
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• 제27권3호
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• pp.149-161
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• 2021

The purpose of this study was to compare nutrition labeling use according to the gender and obesity degree of adolescents to help choose the healthy foods and improve dietary habits. This study surveyed the perception and use of nutrition labeling among 392 male and female high school students in Chungnam. It was found that 34.7% of the subjects read the nutrition labels, mostly for health reason. Calorie content was read the most among all components of nutrition labels regardless of gender or body mass index (BMI) status, especially among female students. Perception of nutrition labeling was 3.3 out of 5 points for all students, and there was no significant difference in scores between male and female students. However, there was a significant difference between the overweight group (3.4 points), normal group (3.3 points), and underweight group (3.1 points) (P<0.05). The frequency of reading nutrition labels by food group was highest for ramen, and lowest for fruits. Female students had significantly higher scores on the use of nutrition labeling for 8 food groups out of 12 groups compared to male students (P<0.05). In addition, the overweight and above group had significantly higher scores on the use of nutrition labeling for snack food and fruits compared to other groups (P<0.05). The proportion of students who received nutrition labeling education was 29.8%, and about half of students answered that such education and advertisement were necessary. These results suggest that nutritional education is needed to promote the use of nutrition labeling in adolescents.

• Korean Journal of Acupuncture
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• 제40권2호
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• pp.33-43
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• 2023

Objectives : Floating acupuncture (FA) is a kind of newly developed acupuncture technique that contains its own apparatus. The technique has unique points that the body of the acupuncture needle stays intradermal space and manipulation is performed by shaking the needle horizontally; after manipulation, part of the needle remained in the intradermal space for 2~3 days. FA is not a common acupuncture methodology while various clinical study claims its efficacy on musculoskeletal disorders. In this study, the authors aimed to enhance the use of FA by comparing related theories. Methods : The authors reviewed classics, books, and articles related to FA, Meridian Muscle (MM), Myofascial Pain Syndrome (MPS), and Wrist-Ankle Acupuncture (WAA), and compared its characteristics by related theory, related symptoms, apparatus, and performing procedures. Results : FA was related and had various common parts with MM, MPS, and WAA, however, there were unique parts in the manipulation, apparatus, and stimulation location. FA is based on MM and MPS which pointing 'ashi points' or 'trigger points' as a treating target while FA does not stimulate the points directly. FA also targets subcutaneous space by inserting the needle horizontally as WAA does, while FA remains the needle handle part in the subcutaneous area for 2~3 days for more stimulation. Conclusions : FA has a unique manipulation procedure and potential benefit for musculoskeletal disorders despite the crude theological base written by Fu himself. Thus, developing a new explanation and patient-friendly methodology/apparatus is required for further down-to-earth studies.

• 한국정보전자통신기술학회논문지
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• 제13권1호
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• pp.58-63
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• 2020

본 논문은 스테레오 카메라를 이용한 모바일 로봇의 위치 추정 정확도 향상을 위한 방법을 제안한다. 스테레오 카메라로 획득한 스테레오 이미지로부터 위치 정보를 복원하기 위해서는 왼쪽 영상의 각 픽셀에 대응하는 대응점을 오른쪽 영상에서 찾아야 한다. 일반적으로 에피폴라 라인 위의 점들과 픽셀 유사도를 연산하여 대응점을 찾는 방법이 있다. 하지만 모든 에피폴라 라인 위의 점들을 다 탐색해야한다는 단점이 있고, 픽셀 값에 의해서만 유사도가 계산된다는 단점이 있다. 이를 보완하기 위해 본 논문에서는 좌/우 영상의 특징점을 추출 및 매칭하여 대응하는 점들이 같은 y축 상에 있을 경우, x좌표 값의 차를 구함으로 대응점 탐색방법을 간략하게 구현하였다. 또한 매칭이 되지 않아 소실되는 점들의 정보는 기존 알고리즘을 통해 대응점을 구함으로 특징점 수를 최대한 보존하고자 하였다. 특징점 및 대응점의 좌표를 통해 복원된 특징점의 3D 좌표를 기반으로 모바일 로봇의 위치를 보정하였다. 실험 결과, 제안하는 방법을 통해 좌표 보정을 위한 특징점 수를 증가시켰고, 특징점 추출만 수행한 경우보다 모바일 로봇의 위치도 보정 가능함을 확인하였다.

• 한국지구과학회:학술대회논문집
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• 한국지구과학회 2005년도 추계학술발표회 논문집
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• pp.323-330
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• 2005

본 연구에서는 제7차 교육과정의 고등학교 지구과학Ⅰ,Ⅱ 교육과정의 내용 체제와 과학관의 전시내용을 비교 분석하여 과학관이 교육과정의 성격과 목표를 얼마나 잘 반영하고 있는가를 알아보았다. 본 연구의 결과는 다음과 같다. 첫째, 교육과정 상의 지구과학 내용이 전시되어 있는 영역이 50% 이하이고 단원별로 편중되어 있다. 둘째, 과학관의 지구과학 교육과정 반영 정도는 보통이다.(5점만점의 2.8점) 셋째, 유의수준 0.05하에서 과학관별 전시내용 평균점수는 차이가 있고, 단원별로는 차이가 없다.

• 대한한의학회지
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• 제30권1호
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• pp.163-172
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• 2009

Objectives: The purpose of this study is to report the improvement after oriental medical treatment of partial tear of supraspinatus tendon. Method: We treated 2 patients having shoulder pain due to partial tear of supraspinatus tendon with Oriental medical treatment, including Sa-am acupuncture DaeJang-Jeonggyeok, A-shi point(阿是穴) and herbal medicine. We checked visual analog scale (VAS) score and range of movement (ROM). Results: We treated shoulder pain. Thereafter ROM improved and V AS score dropped to the level of 2 to 4 points from 10 points at onset. Conclusion: This report shows Oriental medical treatment has effectiveness on partial tear of supraspinatus tendon. Follow-up study is needed.

• 동의신경정신과학회지
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• 제33권1호
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• pp.113-122
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• 2022

Objectives: To report the effect of Korean medicine on a patient with insomnia from severe hot flashes. Methods: The patient suffered from extreme hot flashes for months. Symptoms were so severe that the patient attempted suicide. After starting psychiatric medication, symptoms persisted and hospitalization began. During hospitalization, herbal medicine, acupuncture, and psychotherapy were conducted. For evaluating therapeutical effect, Digital Infrared Thermal Imaging was performed twice during the treatment process. It was divided into major facial area and back area. The facial area was divided into two small units to measure the difference in temperature between two points. The back area was measured in the same way. Results: The temperature difference between the two points decreased over time and the patient's subjective symptoms reduced. Conclusions: Korean medicine therapy can improve symptoms of patients with insomnia accompanied by hot flashes.

• 전자공학회논문지S
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• 제36S권11호
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• pp.102-111
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• 1999

본 논문에서는 탐색 영역에서의 탐색점 부표본화와 현재 블록 내의 화소들의 이웃 화소간의 화소값의 차를 이용한 고속 전역 탐색 블록 정합 알고리듬을 제안하였다. 제안한 방법에서는 각 탐색점에서의 평균 절대치 오차 (mean absolute difference; MAD) 값의 최소 범위를 이웃 탐색점에서의 MAD와 현재 블록 내의 화소들의 이웃 화소간의 화소값의 차를 이용하여 구한 뒤, 이를 이용하여 블록 정합이 필요한 탐색점에 대하여서만 블록 정합을 행함으로써 고속으로 움직임을 추정하였다. 이때, 현재 탐색점에서의 MAD의 최소 범위를 구하기 위해서는 이웃 탐색점에서의 MAD를 사용한다. 그러므로 제안한 방법에서는 먼저, 탐색 영역에 대하여 4:1로 탐색점 부표본화를 행한 뒤, 부표본화 된 탐색점에 대하여 블록 정합을 행하여 MAD를 구한다. 그리고, 나머지 탐색점에 대하여서는 각 탐색점의 MAD 값의 최소범위를 부표본화 된 탐색점에서의 MAD와 현재 블록 내의 화소들의 이웃 화소간의 화소 값의 차를 이용하여 구한 뒤, 블록 정합이 필요한 탐색점에 대하여서만 블록 정합을 행하였다. 즉, 제안한 방법에서는 각 탐색점에서 MAD의 최소 범위를 이용하여 블록 정합이 필요한 탐색점 수를 줄임으로써 전역 탐색 블록 정합 알고리듬 (full search block matching algorithm; FSBMA)과 동일한 성능을 유지하면서도 고속으로 움직임을 추정할 수 있었다. 모의 실험을 통하여 제안한 방법이 FSBMA와 동일한 성능을 유지하면서도 많은 계산량의 감소를 얻을 수 있음을 확인하였다.