코어운동과 복근강화운동이 비예측 동요 시 다리 근활성도에 미치는 영향

김도연,김유진,백지훈,신소희,이정민,이명희,Kim, Do-Yeon,Kim, Yu-Jin,Baek, Ji-Hun,Shin, So-Hui,Lee, Jung-Min,Lee, Myoung-Hee 대한고유수용성신경근촉진법학회 2017 PNF and Movement Vol.15 No.2

Purpose: This study investigated the effect of core and abdominal muscle-strengthening exercises on muscle activity in the lower extremity on unexpected perturbation. Methods: Twenty subjects were randomly divided into the core exercise group (n=10) or the abdominal muscles strengthening group (n=10). The two groups performed their exercises during three sessions a week for a total of four weeks. The muscle activity in the lower muscles (rectus femoris, biceps femoris, tibialis anterior, gastrocnemius) was assessed using surface electromyography (EMG) and normalized maximal voluntary isometric contraction (MVIC) before and after the exercises. Results: An increase in the tibialis anterior activity after the core and abdominal muscles strengthening exercises was found after four weeks. A significant difference in the pre- and post-exercise was found. The gastrocnemius muscle activity increased in the core exercise group more than the abdominal muscles strengthening group. However, the difference was not significant. Conclusion: The results of this study suggest that the core and abdominal muscles strengthening exercises increased the tibialis anterior muscle activity. It is expected to help make more balance ability that affect who has abdominal muscles weakness.

이미지 객체로부터 의미 정보 추론

김도연,김철원,Kim, Do-Yeon,Kim, Chyl-Woon 한국전자통신학회 2013 한국전자통신학회 논문지 Vol.8 No.3

이미지와 같은 멀티미디어 정보들의 증가로 저수준의 시각 정보에서 고수준의 의미 정보를 추출하는 방법에 대한 연구가 이루어지고 있으며, 이러한 정보를 자동으로 생성하는 다양한 기술들이 연구되고 있다. 그러나 이러한 기술들은 대부분 한 장의 이미지와 이미지 사이의 의미 정보를 추출하므로 이미지내에 여러 객체가 같이 있는 경우 의미 정보를 추출하기 어렵다. 본 논문에서는 이미지내의 객체들을 시각적 특징 정보들을 추출하여 트레이닝 이미지를 DB에 저장하고 유사도를 측정하여 각 객체의 특징들을 정의한다. 이미지내의 각 객체 특징들은 온톨로지로 이용하여 위치 관계와 연관 관계를 추론엔진을 통해 의미 정보를 추론한다. 이로써 이미지내 객체들 사이의 의미 정보 추론이 가능하고, 좀 더 복잡하고 다양한 고수준의 의미 정보를 추론하는 방법을 제안한다. With the increase of multimedia information such as images, researches have been realized on how to extract the high-level semantic information from low-level visual information, and a variety of techniques have been proposed to generate this information automatically. However, most of these technologies extract the semantic information between single images, it's difficult to extract semantic information when a combination of multiple objects within the image. In this paper, we extract the visual features of objects within the image and training images stored in the DB and the features of each object are defined by measuring the similarity. Using ontology reasoner, each object feature within images infers the semantic information by positional relation and associative relation. With this, it's possible to infer semantic information between objects within images, we proposed a method for inferring more complicated and a variety of high-level semantic information.

고온 롤 라미네이터용 멤브레인 구조 필름형 압력 센서 개발

김도연,이태경,강필식,Kim, Do-Yeon,Lee, Tae-Kyung,Kang, Pil-Sik 한국산업융합학회 2020 한국산업융합학회 논문집 Vol.23 No.6

Demand for pressure sensors is increasing in various fields such as machinery, healthcare and medical care. A recent study is being conducted to create sensors that are more sensitive and have longer linear sections based on measurement principles. In this paper, a film-type sensor with a membrane structure was developed to measure the pressure distributed in the axial direction of a hot roll laminator. Performance of sensors was evaluated by resistance and durability according to membrane diameter. The resistance of the membrane sensor varies according to the contact state and contact area of the electrode. Therefore, the membrane diameter selection is important. Experiments showed the most pronounced variation in resistance under pressure at 8 mm in diameter of membrane. Reliability evaluation of sensors was carried out at room temperature and high temperature. The pressure on the sensor was pressurized 1000 times to measure the initial resistance and the resistance after the evaluation to analyze the change. Sensors showed stable results with low resistance changes of 5.15% and 6.27%, respectively. A large area sensor manufactured using the developed sensor also showed reliable results.

급성 아킬레스건 파열의 수술적 치료: 경피적 봉합술과 관혈적 봉합술의 비교

김도연,김상범,허윤무,이정범,임재우,오형탁,Kim, Do-Yeon,Kim, Sang-Bum,Heo, Youn-Moo,Lee, Jung-Bum,Lim, Jae-Woo,Oh, Hyeong-Tak 대한족부족관절학회 2011 대한족부족관절학회지 Vol.15 No.2

Purpose: The purpose of the present study was to compare and analyze the clinical outcomes of the percutaneous and open repair of acute Achilles tendon ruptures. Materials and Methods: We performed a retrospective study on 24 patients (group 1) managed with percutaneous repair, and 21 patients (group 2) managed with open repair for acute Achilles tendon rupture. The postoperative evaluations were done by an Arner-Lindholm scale and AOFAS score. Postoperative overall satisfaction and cosmetic satisfaction were also evaluated. Results: By Arner-Lindholm scale and AOFAS score, there was no difference between two groups (p<0.05). As for postoperative overall satisfaction, 5 cases were very satisfied, 16 cases were satisfied and 3 cases were fair in group 1. In group 2, 12 cases were very satisfied, 9 cases were satisfied. For postoperative cosmetic satisfaction, 13 cases were satisfied, 11 cases were fair in group 1. In group 2, 9 cases were very satisfied, 12 cases satisfied. In open repair group, a case of deep wound infection and three cases of skin necrosis were reported as complication. 2 cases of sural nerve injury were seen in percutaneous repair group and were recovered within 3 months. Conclusion: Percutaneous repair of acute Achilles tendon ruptures have high level of cosmetic satisfaction compared with open repair without any significant difference in clinical outcomes.

인도네시아 전통주택의 의장 특성에 관한연구 - 자바주택을 중심으로 -

김도연,주서령,오혜경,Kim, Do-Yeon,Ju, Seo Ryeung,Oh, Hye-Kyung 한국주거학회 2014 한국주거학회 논문집 Vol.25 No.6

The purpose of the study is to understand the unique characteristics of decoration style in traditional Javanese houses. Reviewing literature and visiting site were applied as the research method. Javanese House can be divided into three parts; roof, wall and floor. First, the roof of the traditional Javanese House is the most unique and important decorative element. The roofs are covered with roof-tiles and have clay carving ornaments on top. Usually there are no ceilings, just exposed to the oblique shape roof, which are made of wood to enable air ventilation. Joglo roof is the outstanding and representative roof type of Javanese houses. There is artistic and constructive roof structure named as tumpang sari in Joglo roof. The decoration on tumpang sari is the most colorful and symbolic ornaments. Secondly, the most unique element in the wall is the gebyok. Gebyok is made of wood and full of carved ornament, which has an artistic appearance, and also important function. The top part of doors are designed as perforated woodcarving, which give both aesthetic and ventilation purposes. Last, the stratified floor is begin with ground yard, then veranda that made from hardened clay, and main room constituted with a wood scaffold to provide air circulation and remove the humidity of the ground. The decorations of the column stand (umpak) are unique, where usually lotus flower is carved into black stone or lime stone. The outside of the buildings in Java Houses is not decorated by colors or symbols, whereas colors are only used in temples, pavilion or in royal housings. Instead they have carvings and decorations on important structural elements such as columns and beams inside. The ornaments and colors of decorations symbolize their god, ancestors and piece.

Effects of endurance and strength training of cyclists and triathlon athletes on efficiency, economy and VO₂ kinetics

김도연,Kim, Do-Yeon The Society of Digital Policy and Management 2013 디지털융복합연구 Vol.11 No.11

본 연구의 목적은 훈련된 10명의 사이클 선수와 10명의 트라이애슬론 선수를 대상으로 서로 다른 트레이닝 상태에서 경제성과 효율성을 평가하는 데 있다. 모든 실험자는 50, 100, 150 watts의 자전거 프로토콜로 테스트 한 결과, 두 그룹의 효율성은 현저하게 다르게 나타났으며 철인3종 선수들의 경제성과 효율성이 사이클 선수들보다 더 나은 결과를 보였다. 산소섭취량과 작업량의 적절한 조합은 선수들의 산소부족량을 감소시켜 운동 후 회복기에 이에 맞는 부족량 부분을 다시 상환시킬 수 있을 것이다. The purpose of this study was to evaluate the economy and efficiency of two trained athlete groups of different training status. The subjects were 20 elite athletes composed of the cyclists group (n=10) and triathlon group (n=10). All subjects performed steady state testing at 50, 100, and 150 watts, with ample time to reach resting $VO_2$ and ventilation values between stages. The efficiency of two groups appears to be quite different, with triathlon competitors displaying superior efficiency values for the transitions from 0 to 50 and 100 watts. This same principle likely explains the economy of the groups, as triathlon competitor was again more economic at 50 and 100 watts. As though this matching of oxygen consumption and workload they can reduce the amount of oxygen deficit that must be repaid post exercise.

민화의 다시점을 활용한 애니메이션 표현기법 연구

김도연,Kim, Do-Yeon 한국만화애니메이션학회 2005 만화애니메이션연구 Vol.- No.9

인류의 문화 전반이 과학기술의 발전에 따른 뉴미디어들로 인해 급격한 변혁을 맞이하고 있다. 대중들의 보편적인 사고방식도 언어적인 것에서 영상적인 것으로 바뀌고 있다. 이러한 상황 속에서 영상언어로서 영상을 이해하는데 중요한 역할을 하는 시점(視點)에 대한 깊이 있는 연구가 필요하다. 본 연구자는 기존 제도 교육이 서양의 원근법에만 한정되어 다양한 애니메이션 시점을 확보하지 못했다고 느끼고 한국적인 시점을 찾아보고자 하는 관심에서 시작되었다. 시점적 자율성을 가지고 있는 민화의 다시점은 관념의 공간안에서 다양하고 자유롭게 전개되어 하나의 대상을 완전하게 구성하려는 한국의 전통적 표현방식으로 한국적인 정서에 맞는 시점을 제안하는 것이 연구의 목적이다. 본 논문을 통해 먼저 민화의 개념 및 특징을 파악하고 민화 관련 사례연구를 통해 한국 애니메이션의 특성에 맞는 한국 민화의 다시점을 활용한 시각적 표현구조를 연구하고자 하였다. 이를 바탕으로 한국 민화의 다시점을 디지털 미디어환경에서 느낄 수 있도록 전래동화 '해님달님'을 한국 민화의 다시점에 적용하여 애니메이션으로 재구성하였다. 작가의 관념의 공간 안에서 표현되는 여러 가지 표현법 중에 평원(平遠), 부감(府瞰), 역원근(逆遠近),동시적 표현법(同時的 表現法)의 4가지 방식을 활용하여 작품에 적용하였고 시점적 측면에서는 천(天)과 지(地)를 상징하는 호랑이와 새의 캐릭터를 작품에 적용하였다. 또한 화면구성방식은 실재(實在) 민화를 사용하여 이미지를 분해하고 스토리텔링에 맞게 재구성하였다. 본 연구자는 이러한 연구와 제작과정에서 얻은 결과를 바탕으로 관객에게 보다 다양한 시점을 제공하고, 한국 민화의 다시점이 애니메이션뿐만 아니라 다른 콘텐츠들을 통해 확장될 수 있는 가능성을 제안하고자 하였다. This study investigates how 'multi-perspective' can be utilized in animation. For this goal, 1 used the traditional techniques of Korean folk paintings called 'Minhwa.' Most 'Minhwa' works, employ 'multi-perspectives', instead of linear perspective of the Western tradition that has been only taught to students under the formal education system. In Minhwa parts of reality are not only stylized but also fragmented and combined within the same frame. Other common techniques of 'Minhwa' include frontal view, bird's eye view, and inverse-perspective, which are of ien combined in one single work. The purpose of this study is to develop a working principle and practically apply it to <Sun and Moon>, an animation piece based on the Korean folktale of the same title. In doing so, I have proposed a way to reconstruct and revitalize the traditional art form in the age of digital technology and have concluded that 'Multi-perspective' in 'Minhwa' can be utilized in other contents such as animation.'Multi-perspective' in 'Minhwa' is a rich source that has numerous cultural applications.

생분해성 포장재 개발 동향

김도연,Kim, Do-Yeon (사)한국포장협회 2005 包裝界 Vol.149 No.-

EU에서 전개되고 있는 플라스틱 프리 운동

김도연,박소영,박미나,정지연,Kim, Do-Yeon,Park, So-Yeong,Park, Mi-Na,Jeong, Ji-Yeon (사)한국포장협회 2019 包裝界 Vol.319 No.-

원전 계측제어계통의 안전 네트워크 설계 및 평가를 위한 보안 기준

김도연,Kim, Do-Yeon 한국전자통신학회 2014 한국전자통신학회 논문지 Vol.9 No.2

원자력발전소의 데이터 네트워크와 연관된 안전 계통들은 다양한 IT (information technology) 네트워크 및 응용프로그램들을 적용하여 현대화되고 있다. 발전소 데이터 네트워크의 출현과 더불어 원전 계측제어시스템들은 최신의 디지털화된 마이크로프로세서에 근간을 둔 시스템으로 진화하고 있는 반면에, 일반적인 IT 환경에서의 각종 정보시스템이 가지는 사이버보안 취약성 및 사고의 가능성이 증대되는 단점을 가지게 되었다. 이를 보완하기 위해 원전에 적용하는 데이터 네트워크는 신뢰성, 성능 및 보안요건을 충분히 고려해서 설계되어야 한다. 본 논문에서는 원전 계측제어계통에 적용되는 안전한 네트워크의 설계 및 평가 시 사용될 수 있는 기술적인 보안 기준들을 제시하였으며, 본 기준들을 적용하여 설계 및 운영되는 발전소 데이터 네트워크는 외부의 사이버 위협으로부터 효과적인 대처를 할 것으로 판단된다. Nuclear power plant data networks and their associated safety systems are being modernized to include many information technology (IT) networks and applications. Along with the advancement of plant data networks (PDN), instrumentation and control systems are being upgraded with modern digital, microprocessor-based systems. However, nuclear PDN is confronted significant side-effects, which PDN is exposed to prevalent cyber threats typically found in IT environments. Therefore, cyber security vulnerabilities and possibilities of cyber incidents are dramatically increased in nuclear PDN. Consequently, it should be designed fully ensuring the PDN meet all reliability, performance and security requirements in order to overcome the disadvantages raised from adaption of IT technology. In this paper, we provide technical security criteria should be used in design and evaluation of secure PDN. It is believed PDN, which is designed and operated along with these technical security critera, effectively protect against possible outside cyber threats.