• PNF and Movement
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• 제17권2호
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• pp.275-282
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• 2019

Purpose: This study aimed to investigate the optimal positions of safety grab bars for effective sit-to-stand (STS) movement by comparing the results of the STS movement while using a safety grab bar installed under two different conditions: the height of the grab bar installation was determined by (1) the Building Act and (2) the principle of proprioceptive neuromuscular facilitation (PNF). Methods: A total of 50 undergraduate students participated in this study, and they were required to perform an STS movement twice under each condition. A baropodometric platform for sitting and a Biorescue (RM Ingenierie, France) were used to collect and analyze changes in the center of pressure (COP) on the left and right sides before and after performing the STS movement. The average completion time for the STS movement was also measured for analysis. Moreover, the participants were asked to express their individual subjective preferences regarding the two positions of the grab bars. Results: The COP changes were significantly smaller when performing the STS movement with the grab bar installed at the height determined by the PNF principle than the Building Act (p<0.01), and the difference in the completion time of the STS movement was not statistically significant between the two conditions. Conclusion: The findings of this study suggest that the principle of PNF can be useful for planning therapeutic exercise as well as for proposing the optimal grab bar position for older adults and those with health-related issues when performing the STS movement. In addition, this may serve as a basic rehabilitation technique for maintaining remaining functions and providing functional efficiency.

• Fibers and Polymers
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• 제7권2호
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• pp.191-194
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• 2006

This paper adopts nonlinear vibration method to analyze the fluctuation process of fiber movement. Based on Hamilton Principle, this paper establishes differential equation of fiber axial direction movement. Using variable-separating method, this paper separates time variable from space variable. By using the disperse movement equation of Galerkin method, this paper also discusses stable region of transition curve and points out those influencing factor and variation trend of fiber vibration.

• 문화기술의 융합
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• 제7권4호
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• pp.857-862
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• 2021

최근 급격한 기후변화로 인해 꿀벌의 생태계에도 많은 영향을 주고 있다. 꿀벌의 개체수 감소, 개화기의 변화로 인한 양봉 농가의 채밀에 막대한 영향을 주고 있다. 이에 따라 양봉에도 IoT 기술을 도입한 스마트 양봉에 관심이 집중되고 있다. 양봉의 특성에 따라 벌통안의 벌집을 육안으로 지속적 관찰이 불가능하고, 벌집안의 상태에 대하여 대부분 경험에 의한 지식에 의존하고 있는 실정이다. 특히, 벌통 내부에 꿀벌의 이동 경로와 이동량을 측정하는 부분에 대한 연구는 전무한 상황이다. 벌통 내부의 꿀벌의 이동에 대한 부분은 양봉에서 가장 중요한 분봉 시기를 예측할 수 있는 기본적인 정보를 제공할 수 있다. 본 연구에서는 꿀벌의 이동 경로를 파악하고 벌집(소비)간 입·출입 데이터를 실시간 측정하고 기록하는 장치를 제안한다. 본 연구에서 제안한 장치를 양봉 농가에서 활용할 수 있도록 기존 벌통의 벌집(소비) 규격에 맞춰서 개발했다. 개발방법은 꿀벌의 이동을 감지할 수 있는 포토 디텍터를 활용하여 16개의 이동통로를 구성하고 꿀벌의 이동상황을 실시간 감지할 수 있도록 했다. 이렇게 측정한 꿀벌의 이동상황을 활용하게 된다면 분봉시기를 놓치지 않기 위해 육안으로 봉군을 직접 관찰해야하는 문제를 해결할 수 있다. 나아가 꿀벌의 벌집 간 입출입 기록 데이터를 AI 알고리즘을 적용하면 자동으로 봉군 확장 시기를 예측할 수 있는 시스템 구현도 가능할 것이다.

• 한국운동역학회지
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• 제14권3호
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• pp.83-98
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• 2004

The purpose of this study was to investigate the test-retest of plantar pressures using the F-Scan system over speeds and plantar regions. 6 healthy female subjects in 20's were recruited for the study. Plantar pressure measurements during locomotor activities can provide information concerning foot function, particularly if the timing and magnitude of the loading profile can be related to the location of specific foot structures such as the metatarsal heads. The Tekscan F-Scan system consists of a flexible, 0.18mm thick sole-shape having 1260 pressure sensors, the sensor insole was trimmed to fit the subjects' right. left shoes - sneakers shoes & dress shoes. It was calibrated by the known weight of the test subject standing on one foot. The Tekscan measurements show the insole pressure distribution as a function of the time. This finding has important implications for the development of plantar pressure test protocols where the function of the forefoot is important. According to the result of analysis it is as follows 1) Center of force trajectory in women's dress shoes display direct movement, compare with center of force trajectory in Sneaker shoes displays a little bit curved slow pronation movement. Sneaker shoes in forefoot part display very quick supination movement, therefore, this shoes effects negative effectiveness for ankle's stability Considering center of force trajectory analyzing the more center of force close straight line, the more movement can be quick movement for locomotion. For foot pressure distribution, center of force trajectory in locomotion is better to curved trajectory with pronation movement. So sneaker shoes style is good shoes considering center of pressure distribution trajectory compare with women's dress shoes. 2) Women's dress shoes increased peak pressure in medial, this is effected by high hill's height. The more increased women's dress shoes's height, the more women's peak pressure will increase, pronation can increase compare with before. Supination movement increase, this focused pressure in lateral, also, supination increased more. If the supination movement increased, foot pressure focused in lateral, therefore, it is appeared force distribution in gait direction. This is bad movement in foot's stability. 3) Women's dress shoes in landing phase displayed a long time, this is when women's dress shoes wear, gait movement is unbalance, so, landing phase displayed a long time. For compensation in gait, swing phase quick movement. 4) Women's dress shoes displayed peak pressure distribution in lateral of rearfoot part, Sneakers shoes displayed peak pressure distribution in medial of forefoot part. Its results has good impact absorption compare with women's dress shoes. In forefoot part, sneakers shoes has good propulsive force compare with women's dress shoes.

• 한국디지털건축인테리어학회논문집
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• 제5권1호
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• pp.32-39
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• 2005

Even though geographical drawbacks of Netherlands, the De Stiji Movement has been acting extensively as a composite arts movement. Furthermore, because this movement has influenced on even field of architecture, Walter Gropius, who had led to establish the modern architecture at that time, was not also able to be excluded from the influence of De Stiji movement. As a result, his works after 1922 when De Stijl movement had been acting vividly, shows a part of De Stijl style and definitely has a difference via-a-via early of his works. Therefore, this study in this point of view is on the purpose of how De Stijl Movement influenced on Gropius' works as the ideology of place and concepts in the period of both De Stijl Movement and Modern architecture style were being formed together. Especially, this study will analyze Dessau Bauhaus Building, which is the most influenced by De Stijl Style in Gropius' works, into the way of how De Stijl. was embodied to this building.

• 한국멀티미디어학회논문지
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• 제23권1호
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• pp.67-73
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• 2020

This paper analyzed the characteristics of Motion Poster (Moster) and discussed the visual expression methods. To this end, the existing literature on motion posters was organized. The visual representation of motion posters was analyzed by dividing into 'Main Visual', 'Mode of Movement', 'Playtime' and 'Sound'. The analysis results were as follows. As motion posters are kind of movie posters, they are made from the original movie poster images, characters, or scenes of the movie. Graphical representations used either photo-realism or computer realism. The movement methods are 'simple movement of visual elements(movement, gesture and rotation, appear or disappear)+fixed camera movement' or' camera movement (zoom in/out, rotate, move) + fixed visual element movement'. Playback time ranged from about 10 seconds to over 1 minute of video, and the longer the video, the higher the probability of including sound.

• 한국실내디자인학회논문집
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• 제5호
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• pp.9-16
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• 1995

The purposed of this study is searching the characteris-tic of 'Movement' expression by the Moving experience in display space. First, the concept of 'Movement' was defined by visitor's moving experiences according to the time pass and to visual perception. Exhibit cases were analygied to fine the relationships the defined 'Movement' experience with display spaces. But, 'Movement' is related moving experience from the entrance to importance of display space, and that is picked out key word in movement expression. Consequently, two category (visual expression, expres-sion method) to regard on the space design in display space was suggested focused on the concept of 'Movement'.

• 한국실내디자인학회논문집
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• 제20권3호
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• pp.3-12
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• 2011

The purpose of this study is to analyse the diagrammatic design approaches and programmatic design approaches in contemporary architecture, so that this reveals the sequential systems of circulation in the space and liberal movement of the visitors in the buildings of those diagrammatic and programmatic architecture. Contemporary architecture generates the new forms and meanings through the dynamic visions and perspectives. Such a variation of sequential vistas and dynamic visions produce a perception of time and a potential movements of axis in the perspective. This study give the systematic body to the relations among visions, movements, sequences, forms, circulations and time. Diagrammatic and programmatic design approaches show the heterogeneous spaces and the informal architectures in contemporary architecture. Therefore, movements of various view points, differrentiations of objects in the perspectives, and multiple view frames appears in the designs of initiative architects. In conclusion, this study systemizes the concepts of time, sequential movements, and perceptions of events in contemporary architecture through the analyse of 18 architectural works of important architects in 2000s. And this shows details of the transitional movement of space and the perception of time in contemporary Architecture. The Being of the active time constructs formal transformations, spacial differentiations, accumulations of human behaviors, and movements of circulations involved with experiences of the field of senses. Therefore, Zeitlichkeit is perceived through concepts of the sequences of those spaces, forms, behaviors, and memories.

• 구강회복응용과학지
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• 제35권1호
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• pp.20-26
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• 2019

목적: Wire를 꼬아서 제조한 twisted file (TF)이 개발된 이래, 최근에는 기존 twisted file의 내구성 및 절삭 효과를 증진시키기 위하여 구동방식의 변형을 준 TF-adaptive movement가 소개되었다. 본 연구의 목적은 TF-adaptive movement가 twisted file의 내구성에 미치는 영향을 조사하는 것이다. 연구 재료 및 방법: J자 모양의 근관 형태를 가지는 레진 모형 근관에 twisted file을 이용하여 근관 형성 시 adaptive movement (TFA군)와 continuous rotation movement (TFC군)의 두 가지 구동 방식 하에서 파일의 내구성을 비교하고, 각각의 모형 근관을 형성하는데 소요된 시간을 측정하였다. TF 파일을 사용할 때마다 치과용 현미경으로 TF의 날풀림(unwind) 또는 변형 및 파절 여부를 관찰하여 그때까지 TF로 형성한 모형 근관의 수를 기록하고, 사진을 촬영하였다. 또한 twisted file의 첨단(D0)에서 날풀림이 발생한 지점까지의 직선 거리를 측정했다. 실험 결과는 0.05의 유의수준에서 Mann-Whitney U test로 분석했다. 결과: 파일의 파절은 두 실험군 모두에서 발생하지 않았으며, TFC군은 TFA군에 비하여 날풀림이 발생하기 전까지 형성한 모형 근관의 수가 통계적으로 유의하게 적었으며, 모형 근관을 작업장까지 성형, 확대하는데 걸린 시간은 TFA군이 TFC군에 비해 유의하게 길었다. 날풀림이 발생한 지점의 위치는 TFC군과 TFA군 사이에 유의한 차이가 발견되지 않았다. 결론: Twisted file을 adaptive movement mode로 사용하여 근관을 형성하면 날풀림이 발생하기 전까지 확대할 수 있는 근관의 수가 증가했으나, 작업장까지 근관을 형성하는데 필요한 시간이 유의하게 증가했다. Adaptive movement와 continuous rotary movement 간에 기구의 날풀림이 발생하는 위치에는 유의한 차이가 발견되지 않았다.

• 한국디지털건축인테리어학회논문집
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• 제8권2호
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• pp.5-12
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• 2008

Since the past, an attempt of figuration which is for movement, time and force has existed constantly. A process of representative from expressed on the movement, time and force creates events, and the process through the events expresses the idea of a simulacre. Furthermore, Architectural works for potentiality to give a demonstration are in common with hybrid characteristics, and have lasting creation of flux architecture. Ignoring the gravity of the floating figuration, so it appears unrealistic hyperphysical virtual space that easily could make the life of creation. For this reason, the form generation based on the digital design method is expressed the important method. In conclusion, actualizing the virtual is the suitable way for 'devenir architecture' based upon the Deleuze Guattari's idea of 'simulacre' and creating the from generation on the contemporary digital architecture design in a similar way.