• Title/Summary/Keyword: DRAGON

Search Result 268, Processing Time 0.032 seconds

Trotting Gait Generation Based on the Lizard Biometric Data (도마뱀 생체 데이터를 이용한 속보 걸음새 생성)

  • Kim, Chang Hoi;Shin, Ho Cheol;Lee, Heung Ho
    • The Transactions of The Korean Institute of Electrical Engineers
    • /
    • v.62 no.10
    • /
    • pp.1436-1443
    • /
    • 2013
  • A variety of studies on imitating the skeletal structure and the gait of legged animals have been done in order to develop walking robots which have an ability to adapt to atypical environments. In this paper, we analyzed the gait of a Bearded dragon lizard using the motion capture system, proposed a calibration scheme of the motion data and generated the trotting gait of a lizard based on the calibrated data. Also, we constructed the dynamic model based on the biometric data of a Bearded dragon lizard and applied the trotting gait of the lizard to the dynamic model. We verified the validity of the gait with the commercial dynamic simulation software.

Recent Developments of Wave Energy Utilization in Denmark

  • Kofoed, J.P.;Frigaard, P.;Kramer, M.
    • Proceedings of the Korea Committee for Ocean Resources and Engineering Conference
    • /
    • 2006.11a
    • /
    • pp.91-98
    • /
    • 2006
  • This paper aims at giving an overview of the developments researchers at the Department of Civil Engineering, Aalborg University, Denmark (DCE), have been involved in within the field of wave energy utilization in Denmark over the past decade. At first a general introduction is given followed by a more thorough description of three ongoing projects. These are Wave Dragon, Wave Star and Seawave Slot-cone Generator. Common for these projects are that they are being, or will soon be, tested in real sea and have benefited from the Danish Wave Energy Program. The work by the department on these projects involves substantial laboratory testing, numerical simulations and real sea prototype testing.

  • PDF

Optical design of soft X-ray region monochromator (Soft X-ray 영역 단색화 장치의 광학적 설계에 관한 연구)

  • 성면창;최원국;황정남;정광호;김영식
    • Korean Journal of Optics and Photonics
    • /
    • v.3 no.2
    • /
    • pp.86-91
    • /
    • 1992
  • We describe the design of a soft X-ray grating monochromator for synchrotron radiation in the photon energy range 300~1200eV. We investigate the optimum condition in optical parameters of CEM (cylindrical element monochromator), whose performance is well known by Dragon beam line installed recently at Brookhaven National Laboratory by C. T. Chen, fitting the parameter of PLS (Pohang Light Source) storage ring construction.

  • PDF

The Symbol of Hùng Kings: From a Founding Myth to Modern National Belief

  • Hoang Huu Phuoc
    • SUVANNABHUMI
    • /
    • v.15 no.1
    • /
    • pp.129-148
    • /
    • 2023
  • Using sociohistorical approaches, the paper shows that before the 15th century, myths of Hùng Kings, considered to be the descendants of the Dragon race and ancestors of the Vietnamese people, may have existed locally. Vietnamese rulers and people strongly supported the integration of these myths into indigenous culture to form a new belief: the worship of Hùng Kings. By way of discovering the transformation process from the founding myths to the modern national beliefs of the Vietnamese, this paper attempts to demonstrate that both myths and worship of Hùng Kings were politically created and encouraged. The article also focuses on the reasons why these myths and worship reached a broad public as these were integrated into Vietnamese culture.

Low Magnetic Field MRI Visibility of Rubber-Based Markers

  • Kim, Jeong Ho;Jung, Seongmoon;Kim, Jung-in
    • Progress in Medical Physics
    • /
    • v.30 no.4
    • /
    • pp.89-93
    • /
    • 2019
  • Purpose: This study aims to develop new markers based on silicone rubber and urethane rubber to enhance visibility in low magnetic field magnetic resonance (MR) imaging. Methods: Four types of markers were fabricated using two different base materials. Two of the markers were composed of two different types of silicone rubber: DragonSkin™ 10 MEDIUM and BodyDouble™ SILK. The other two markers were composed of types of urethane rubber: PMC™ 780 DRY and VytaFlex™ 20. Silicone oil (KF-96 1000cs) was added to the fabricated markers. The allocated amount of oil was 20% of the weight (wt%) of each respective marker. The MR images of the markers, with and without the silicone oil, were acquired using MRIdian with a low magnetic field of 0.35 T. The signal intensities of each MR image for the markers were analyzed using ImageJ software and the visibility for each was compared. Results: The highest signal intensity was observed in VytaFlex™ 20 (279.67±3.57). Large differences in the signal intensities (e.g., 627% in relative difference between BodyDouble™ SILK and VytaFlex™ 20) among the markers were observed. However, the maximum difference between the signal intensities of the markers with the silicone oil showed only a 62% relative difference between PMC™ 780 DRY and DragonSkin™ 10 MEDIUM. An increase in the signal intensity of the markers with the silicone oil was observed in all markers. Conclusions: New markers were successfully fabricated. Among the markers, DragonSkin™ 10 MEDIUM with silicone oil showed the highest MR signal intensity.

Analysis on the Tattoo Patterns used among Tattoo-related Internet Communities - Focusing on the Domestic and International Web Sites - (타투 관련 인터넷 동호회 사이트에 나타난 타투 문양 분석 - 국내.외 사이트를 중심으로 -)

  • Chung, Kyung-Hee;Lee, Mi-Sook
    • Journal of the Korean Society of Costume
    • /
    • v.57 no.3 s.112
    • /
    • pp.1-13
    • /
    • 2007
  • The Purpose of this study is to analyze the kinds and positions of tattoo patterns on the body in tattoo-related internet communities and professional web sites. for this purpose, 1,892 tattoo patterns were analyzed by sex(man and woman). The results were as fellows; First, animal patterns(30.2%) occupied most, followed by character patterns(24.1%), geometric patterns(13.0%), natural patterns(10.3%), plant patterns(4.7%), mixed patterns(2.5%), and artificial patterns(2.2%). In patterns, dragon(10.3%) occupied most, followed by star(8.7%), trival(8.6%), woman(7.6%), skeleton(4.9%), and letter(4.8%). Second, men's preference to pattern groups included animal patterns(30.8%), character patterns (28.3%), geometric patterns (14.6%), and natural patterns(6.0%). Among patterns, dragon(13.4%) was the most frequent, followed by trival(10.9%), woman(10.7%), and skeleton(7.1%). Women's preference to patterns groups included animal patterns(31.4%), natural patterns(17.3%), character patterns(17.2%), geometric patterns(10.5%), and plant patterns(10.0%). Among patterns, star(15.3%) was the most frequent, followed by butter- fly(10.5%), elf(9.2%), and dragon(9.2%). Third, the positions of tattoos on the body included upper arm(26.6%), shoulder(10.8%), back(10.5%), the wrist(10.0%), the calf(7.5%), back bottom(7.0%) and the breast(6.3%). While men's preference to pattern positions included upper arm(38.2%), the wrist(13.7%), back(10.5%), the calf(9.4%), and shoulder(8.0%), women's preference to positions included back bottom(17.7%), shoulder(15.5%), back(10.5%), front bottom(8.2%), and the breast(7.8%).