• 펄프종이기술
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• 제45권3호
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• pp.52-58
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• 2013

To evaluate the anisotropic characteristics of Korean traditional paper-Hanji, the physical and mechanical characteristics of hand-made hanji, and machine-made hanji were investigated in this research. The densities of copying paper and newsprint paper appeared to be two times higher than the densities of hand-made hanji using Ssangbal sheet forming and hanji made of paper mulberry fiber. The breaking length, and tear index of both Hanji using Owangbal sheet forming, and hand-made Hanji using Ssangbal sheet forming appeared to be different according to the directions in paper. The breaking lengths of Hanji using Owangbal sheet forming showed little differences according to the directions. Breaking length of Hanji using Ssangbal sheet were slightly higher than those of Hanji using Owangbla sheet forming. The breaking lengths of machine-made hanji, copying paper, and newsprint paper were two to four times higher than those of hand-made Hanji. The breaking length showed higher differences according to the direction than the tear index. The tensile strength according to the directions in paper showed significant differences (${\alpha}$=0.05) in all papers used in this research.

• 대한인간공학회지
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• 제26권4호
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• pp.75-83
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• 2007

Why do some countries walk on the right and others on the left? People have a dominant hand which leads to a natural tendency to favor one side of the road or another depending on the means of transportation being used. The primary objective of this study was to investigate the stereotype of Korean regarding preferred walking direction in encountering various facilities and provide the appropriate information to traffic policy makers. Six hundred Korean male and female subjects aging from 12 to 83 were selected to investigate the various statistics about their preferred walking direction and their employment characteristics on walking diverse facilities. The walking directions of eleven different facilities were asked along with other relative subjects' characteristics(e.g., age, gender, hand and foot dominance) to determine the relationship among these obtained data. The descriptive statistics showed that 73.7% and 26.3% were preferred walking right and left direction respectively. Moreover, various statistical analysis revealed that general tendency of walking direction was varied by hand and foot dominances. There were strong tendency that right-handed people prefer walking right side of the road and vise versa, hence this should be considered in setting up traffic policies. As a concluding remark, it is better to design traffic policies and regulations in the way that peoples' preference and expectation.

• 한국산학기술학회논문지
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• 제17권2호
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• pp.427-435
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• 2016

최근 중동 호흡기 증후군의 발현으로 손 씻기가 강조되고 있는 실정이다. 본 연구의 목적은 중동호흡기 증후군의 예방을 위하여 손 씻기의 빈도에 영향을 미치는 요인을 파악하기 위하여 기질불안, 건강통제위, 건강증진행위의 관계를 분석하였다. 314명의 간호 대학생들에게 중동 호흡기 증후군을 예방하는 방법, 손 씻는 횟수, 기질불안, 건강통제위, 건강증진행위에 대하여 설문조사하였고, 수집된 자료는 Pearson correlation, 다중회귀분석으로 분석하였다. 손 씻기 수행 빈도에 영향을 미치는 요인으로는 손 씻기 중요도 이였으며, 손 씻기 중요도에 영향을 미치는 요인은 내적통제위로 나타났다. 또한, 대부분의 간호 대학생이 손 씻기가 중동 호흡기 증후군의 가장 중요한 예방법으로 인지하였다. 이에 손 씻기의 중요성과 내적 통제위를 강화한 건강교육을 진행해야 할 것이다.

• 한국공작기계학회:학술대회논문집
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• 한국공작기계학회 2000년도 춘계학술대회논문집 - 한국공작기계학회
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• pp.567-572
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• 2000

From the experimental study of W-EDM for alloyed steel, the characteristics such as Hand Drum Form and surface roughness have been observed and evaluated for various conditions. In square hole, the increase of IP as to made condition, the calculate high value of surface roughness. Also compare dimensionless square hole with circle hole' graph, In circle hole, if a value of surface roughness IP 6 in a side of circle it show a 0.4${\mu}{\textrm}{m}$ and in IP 8, 0.6${\mu}{\textrm}{m}$, in IP 10, 0.7${\mu}{\textrm}{m}$, in IP 12, 0.8${\mu}{\textrm}{m}$ higher than before. This figure show the surface roughness is higher than before, because a table move in either X-axis or Y-axis in square hole, on the contrary, in circle there table move in X-axis and Y-axis at the same time. hand drum form getting small when wire tension increase 1000gf to 1500gf, at the same working conditions. The smaller of off time, the maller of hand drum form in same condition and same wire tension. but if you compare square hole with circle hole' graph, hand drum form displayed in maintained term of working condision, on the contrary, in case of square hole variation of hand drum form is more increase than a grow of IP

• 신경치료
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• 제22권3호
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• pp.31-36
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• 2018

Purpose The purpose of this study was to investigate the effects of contact handorientation response(CHOR) during sit-to-stand(STS) in people with stroke. Methods The subjects of the study were Thirty hemiplegia participated (Rt. hemiplegia/Lt. hemiplegia: 15/15, mean age: $65.82{\pm}8.53$) in this study. The analysis of muscles activation (rectus femoris, biceps femoris, tibialis anterior, gastrocnemius) distribution was conducted by the EMG, and the analysis of foot pressure distribution was conducted by the resistive pressure sensor. Hemiplegic stroke patients were instructed to perform STS three times with the non-affected side hand and affected side hand on the table. Results There was a significant positive correlation between rectus femoris, tibialis anterior muscle activation and affected side hand contact during STS(p<0.05). The STS correlated with the foot pressure in the affected side hand contact(p<0.05). Conclusion AS a result, CHOR during STS is related to muscle activation and the characteristics of foot pressure. This information was observed in the affected side hand contact on the table, suggestion that rehabilitation programs should be implemented.

• Archives of Plastic Surgery
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• 제33권6호
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• pp.715-722
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• 2006

Purpose: The main advantages of the perforator flap are minimal donor site morbidity, preservation of any main source artery and its thin characteristics. Most perforator flaps for hand reconstruction need primary and secondary procedures such as a flap debulkiness and liposuction etc. However, flap thickness of calf area is thinner than any other perforator flaps. Methods: We performed an anatomical study and clinical application of medial sural artery perforator flap. We found that there are two or more medial sural perforators located on a straight line drawn from the mid-point of popliteal crease to the mid-point of medial malleolus. Most pathway of medial sural artery comes along with this line. It is possible to observe the first perforators almost exactly 8 cm from midpoint of popliteal crease in a distal half circle drawn with a radius of 2 cm. Results: We report 12 cases in 11 patients of hand reconstruction with medial sural perforator free flap from Febrary 2003 to Febrary 2006. Complete healing was possible in 11 cases. Total flap loss for venous insufficiency was in 1 patient. During the follow-up, good contour and full range of motion was observed on hand reconstruction with medial sural perforator free flap. Conclusion: In the authors' experience, this anatomical study made it possible to prepare a diagram of the exact location of the medial sural perforators. This flap can be used to achieve acceptable functional and aesthetic results for hand reconstruction because of its thin characteristics.

• 한국의류학회지
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• 제33권4호
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• pp.531-542
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• 2009

This study examines the correlation between the characteristics of sustainable slow design, The outcome derived from the pro-environmental consciousness in fashion design, and the trends of modern fashion design. The conclusion of this study is as follows. First, slow design for sustainability shows an environmental consciousness and stresses the ethical aspects of fashion design that take into account the wellbeing and sustainable development of human society. It also focuses on the continuos present in which the consistent pace of life endures, rather than pursuing speedy changes of fashion by titillating desire. Second, the five characteristics of slow design have been extracted from the analysis of the examples of fashion industry and other fashion-related areas. They are sustainability, recyclibility, handicraft, naturalness, and simplicity. Third, these characteristics of slow design have much to do with modern fashion genres. For instance, classical style fashions such as Chanel suit and Burberry coat have the same qualities of sustainability, while at the same time the Vintage fashion, which reinterprets the fashions from bygone eras in modern style, has the tendency of recyclibility, and the Hippie style, a resurrection of hand-touch spirit that emerged as a secondhand style expressionism resisting uniform mass production, has not only the quality of handicraft but also recyclibility.

• 경영정보학연구
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• 제23권4호
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• pp.45-67
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• 2021

온라인 C2C 중고거래에 대한 수요가 증가하고 있으나 물품을 보내지 않거나 명시한 것과 다른 물건을 보내는 방식으로 부당한 금전적 이득을 챙기려는 사기 행위자들의 수도 증가하고 있다. 본 연구는 이러한 사기를 미연에 방지하기 위한 머신 러닝 방법을 이용한 사기 탐지 모델을 구축하였다. 이를 위해 대표적 C2C 중고거래 플랫폼인 중고나라에서 145,536건의 거래 게시글을 수집하였다. 이후 이들 게시글에서 토픽 모델링 기법을 이용하여 상품 설명 내용의 주제를 추출하였으며, 상품 설명의 언어적 특성, 준언어적 특성, 상품의 특성, 게시글의 포스팅 특성, 구매자 특성, 거래 특성들을 추출하였다. 이를 XGBoost 방법에 기반한 머신 러닝 모델을 구축하여 사기 게시글을 탐지하였다. 분석 결과, 사기 게시글은 글 자체의 길이가 대체로 짧고, 제공하는 정보가 적고 상대적으로 구체적이지 않은 것으로 나타났으며 명사를 상대적으로 적게 쓰고 이미지도 사용하지 않거나 적게 사용하는 글이 대부분인 것으로 나타났다. 또한 상대적으로 숫자와 공백의 비율이 높게 나타났으며 정상 게시글의 경우 명사의 경우 상품의 정보, 동사의 경우 전달, 형용사의 경우는 행위와 관련된 단어들이 사용되었으나 사기 게시글은 뚜렷한 주제를 가지지 못하는 것으로 나타났다. 본 연구는 전화번호나 계좌번호를 사용한 기존의 방법과 달리 다양한 게시글의 특성으로 사기 여부를 탐지하는 모델을 구축했다는 점에서 학술적, 실무적 시사점을 가지고 있다.

• 재활치료과학
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• 제2권2호
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• pp.61-66
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• 2013

목적 : 본 연구는 가속도계를 이용하여 일상생활활동 과제 수행 시 양손 움직임의 차이를 비교 분석하기 위해서 실시하였다. 방법 : 원주 Y 대학교에 재학 중인 정상 성인 6명을 대상으로 하였다. 일상생활활동 과제는 Jebsen Hand Function Test 7개 하위항목으로 하였으며, 비우세손목과 우세손목에 가속도계를 교대로 착용한 후 수행하였다. 결과 : Jebsen Hand Function Test 7개의 항목별로 우세손과 비우세손의 움직임 차이를 분석한 결과 글씨쓰기 항목에서만 유의한 결과(t=-2.394, p<.05)가 나왔으며, 비 우세손목(M=2476.2, SD=802.2)이 우세손목(M=1456.2, SD=667.6)보다 움직임이 더 많았다. 나머지 항목은 유의한 결과를 보이지 않았다. 결론 : 본 연구 결과 우세손과 비우세손의 움직임 차이가 있는 활동에서는 가속도계가 측정도구로서의 의미가 있었으나 임상에서의 활용성에 대해 알아보기 위해서는 앞으로 적용 대상자 수를 늘리고 일반적 특성, 다양한 대상군을 고려한 가속도계 연구가 필요하다.

• 한국의류학회지
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• 제28권9_10호
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• pp.1300-1311
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• 2004

The aim of this study was to provide the 2 and 3 dimensional statistics requisite in the sizing system and design of gloves. The 64 2-dimensional static measurements were selected to provide information about hands. Participants in the study were 824 adults, aged between 18 and 64. To summarize the information from the measurement values, a Factor Analysis and a Cluster Analysis among multivariate analyses were performed. 3-D scanner was used for visual results of hand shape of each cluster. The results were as follows. Twenty-two items were used for the factor and cluster analysis in order to classify the adult hand shape. The variable quantities that are explained by a total of 3 factors amounted to under 79.37% of the variable quantities. The definition results of the factors related to the hands are as follows: Factor 1 is the horizontal dimension, the thickness of hand factor; Factor 2 is the height of the crotch; and Factor 3 is the vertical dimension of the hand. The adults' group hand was divided into 2 clusters according to a cluster analysis using factor scores. The characteristics according to hand type were as follows: Cluster 1 referred to high horizontal dimensions and thickness, rather small vertical dimensions and crotch height; and Cluster 2 represented the rather smaller horizontal dimensions and thickness but longer hand length than Type 1. To provide specific shape data of each cluster, 3-D scanner measurement was performed. 3-dimensional data base was developed for each cluster type and visual information was provided.