• Venture DIGEST
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• s.66
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• pp.18-18
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• 2005

큰맘먹고 찾아간 주말의 놀이공원. 날씨도 화창하니 콧노래가 절로 난다. 오늘은 뭘 타볼까? 어라, 줄이 제법 긴걸. 하지만 이 정도쯤 참아 줄 수 있지. 오늘은 주말이니까, 화창하니까. 이용권을 구입하고 놀이기구 앞에 왔지만 줄은 아까보다 더 길다. 짜증이 슬슬 고개를 든다. 유비쿼터스 세상이 코앞이라는데 어찌된 일이란 말인가…경희대 창업보육센터에 입주한‘인사이드알에프’의 장영철 대표는 누구나 일상에서 접하는 이런 불편함에서 사업아이템을 찾았다.

• The Science & Technology
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• v.33 no.10 s.377
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• pp.10-12
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• 2000

더 빠르게... 더 높게... 이번 시드니올림픽에서 새로운 기록을 세우기 위해 선진국들은 스포츠 과학화에 많은 투자를 했다. 피로를 줄이는 수영복, 레이저 달린 소총, 공기저항 줄이는 보디슈트, 사이클의 실크타이어 등 미국이 동원한 첨단 스포츠과학기술을 소개한다.

• Proceedings of the Korean Institute of Navigation and Port Research Conference
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• 2011.11a
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• pp.37-39
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• 2011

예선이 부선을 예인줄로 연결하여 운항할 시 예인줄에 걸리는 장력 및 형상을 예인줄을 다물체로 분할하여 모델링하였다. 이러한 예인줄 요소에 대한 횡동요를 제외한 5자유도 운동방정식을 구성하고, 각 요소들에 작용하는 힘을 정식화하여 연성 운동방정식을 도출하였다. 예인줄 요소들 간에는 예인줄의 재료 특성에 따른 강성을 가진 스프링과 감쇠장치로 연결하여 동력학적 조건을 부가하였고, 요소의 변형을 허용하는 형태로 운동학적 조건은 설정하지 않았다. 예인줄의 다물체 모델링의 검증을 위하여 단순 낙하, 직진, 사인파 형태로 지그재그로 움직이는 예선과 단순 항력체로 가정한 부선의 운동에 대한 시뮬레이션을 수행하였다.

• Journal of the Korea Organic Resources Recycling Association
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• v.15 no.4
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• pp.93-99
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• 2007

Vertical distribution of tiger worm(Eisenia fetida) population in the earthworm rearing bed was investigated with feeding paper mill sludge. More than 50% of larva and adult population of Eisenia fetida lived within the depth of 5 cm from the surface of rearing bed. And more than 96% of the population of larva, adult and cocoon lived within the depth of 20 cm. Percental vertical distribution of Eisenia fetida population in the rearing bed was not much influenced by the changes in the height of rearing bed or density of earthworm population.

• Journal of the Korean Institute of Intelligent Systems
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• v.26 no.3
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• pp.196-201
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• 2016

This paper analyses the characteristics of a stiffness-based rehabilitation mechanism for improving the function of the elbow joint of a human. We consider an elastic string as a tool for the elbow joint rehabilitation, where the string has been modeled as a linear spring with a stiffness. For effective rehabilitation training by using such a mechanism, we need to analyse the available torque characteristics of the elbow joint according to the stiffness of the string. Through various simulations, the torque pattern and its range of the elbow joint by assigning the stiffness of the string have been identified for a pre-defined trajectory of motion of the elbow joint. Finally, we show that the specified stiffness-based rehabilitation scheme can be used for effective rehabilitation of the elbow joint.

• Korean journal of applied entomology
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• v.54 no.3
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• pp.217-231
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• 2015

The genus Metopius is a relatively large ichneumonids group that includes 145 species worldwide. In this genus, 41 species have been reported from the Eastern Palaearctic region, while eight species have been reported from Korea. We reviewed Korean species of the genus Metopius and confirmed 13 species. We also report five species, Metopius (Ceratopius) maruyamensis Uchida, 1930, Metopius (Ceratopius) scrobiculatus Hartig, 1838, Metopius (Peltastes) fossulatus Uchida, 1933, Metopius (Peltastes) pinatorius $Brull{\acute{e}}$, 1846 and Metopius (Peltastes) sapporensis Uchida, 1930, which were recorded for the first time from Korea. A key to Korean species of the genus Metopius, redescriptions of newly recorded species and digital images of Korean Metopius are also provided.

• Proceedings of the Korean Institute of Navigation and Port Research Conference
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• 2022.06a
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• pp.445-446
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• 2022

In this paper, in order to improve port work preparation and berth scheduling efficiency in an artificial intelligence-based berthing monitoring system that can monitor the ship's berthing process, we develop a mooring line recognition model to check an exact berthing time. By improving the pre-designed AI model, it is possible to segment the mooring line from the input image, and to recognize when the mooring line arrives or falls on the berth, thereby providing the correct ship's berthing time. The proposed AI model confirmed by the results that mooring line recognition is possible with evaluation data about the actual berthing situation.

• (The) Research of the performance art and culture
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• no.39
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• pp.775-800
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• 2019

Jeongeup Pungnyu, which can be regarded as a foundation of Hyangje Julpungryu(;string ensemble in Honam Area) best reflects social-spatial characteristics of local Pungryu culture. The close relationship between Daepungryu(wind ensemble) and Julpungryu can be inferred from three points of view. First, Jeongeumun who participated as a musician in the beginning of Hyangje Julpungryu was good at not only performing musical instrument but also dancing. Jeongeumun did not stay in specific musical field. He performed Hyangje Julpungryu, made Daepungryu and used it as dancing music with musicians that participated in Julpungryu. That is why Julpungryu and Daepungryu are not completely separated music. Secondly, according to , Jung Hyungin, who followed the dance of Jeong Jae-Sun with Kim So-Ran, was the first Piri player who learned from Jeongeumun and played Yeongsanhoesang and Samhyeon-yukkak(;wind ensemble). That is, Jeongeup Julpungryu was formed by Jeongeumun and dancer Jung Hyung-in followed Julpungryu and Daepungryu. Based on these findings, it can be inferred that Jeongeup's Daepungryu is fundamentally closely related to Jungeup Julpungryu.

• The Journal of Korean Academy of Prosthodontics
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• v.51 no.1
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• pp.1-10
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• 2013

Purpose: The purpose of this study was to find an inclination slope of the screw thread that is favorable in distributing the stresses to alveolar bone by using three dimensional finite element analysis. Materials and methods: Three types modelling changed implant thread with fixed pitch of 0.8 mm is the single thread implant with $3.8^{\circ}$ inclination, double thread implant with $7.7^{\circ}$ inclination and the triple thread implant with $11.5^{\circ}$ inclination. And three types implant angulation is the $0^{\circ}$, $10^{\circ}$ and $15^{\circ}$ on alveolar bone. The 9 modelling fabricated for three dimensional finite element analysis that restored prosthesis crown. The crown center applied on 200 N vertical load and $15^{\circ}$ tilting load. Results: 1. The more tilting of implant angulation, the more Von-Mises stress and Max principal stress is increasing. 2. Von-Mises stress and Max principal stress is increasing when applied $15^{\circ}$ tilting load than vertical load on the bone. 3. When the number of thread increased, the amount of Von-Mises stress, Max principal stress was reduced since the generated stress was effectively distributed. 4. Since the maximum principal stress affects on the alveolar bone can influence deeply on the longevity of the implants. When comparing the magnitude of the maximum principal stress, the triple thread implant had a least amount of stress. This shows that the triple thread implant gave a best result. Conclusion: A triple thread implant to increase in the thread slope inclination and number of thread is more effective on the distribution of stress than the single and double thread implants especially, implant angulation is more tilting than $10^{\circ}$ on alveolar bone. Thus, effective combination of thread number and thread slope inclination can help prolonging the longevity of implant.

• Agrochemical news magazine
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• v.16 no.6 s.129
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• pp.9-13
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• 1995