• Title/Summary/Keyword: Stars

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Recognition of Body Weight and Body Part Satisfaction in Female College Students (여대생들의 체중에 대한 인식과 신체 부위별 만족도)

  • Kim, Mi-Ok;Eun, Jong-Geuk;Chang, Un-Jae
    • The Korean Journal of Food And Nutrition
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    • v.22 no.2
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    • pp.205-214
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    • 2009
  • Diet is an important focus in solidifying the fundamentals of health; thus, it is necessary to offer and manage accurate and correct information. This study examined the effects of body part satisfaction and attitude on diet, in female college students, who are known to be very interested in their appearances and tend to have a strong propensity to consume. The data were gathered using questionnaires answered by 101 female college students living in Daegu City, after classifying the women into normal weight and overweight groups, respectively. According to the analyzed results, there were no significant differences in satisfaction by body part between the normal weight and overweight groups, however, both groups were found to be dissatisfied with the following body parts, in the order of: thighs > legs > and hips. The motivation factors for weight control were found to be in order: not having a boyfriend > lacking of confidence > seeing slender entertainment stars, and there were no significant differences between the two groups. Finally, the main reasons for weight control were in order: appearance > health > getting a job. It is anticipated that these results will contribute to preparing systematic solutions to promote healthy diets and body satisfaction in society, and will help bring a desirable change in perceptions about diet.

A Survey of Shrimp Pot Fishery Bycatch and Discard in Funka Bay, Hokkaido, Japan (북해도 분카만(噴火灣) 새우통발어업에 있어서 혼획·투기 실태조사)

  • Kim, Seong-Hun;Lee, Ju-Hee;Kim, Hyung-Seok
    • Korean Journal of Fisheries and Aquatic Sciences
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    • v.44 no.4
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    • pp.397-402
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    • 2011
  • We surveyed the bycatch and discard of the shrimp-pot fishery in Hokkaido, Japan, three times during the major fishing period in September 2005. The surveyed catches were analyzed to separate bycatch, discard, and landings. To analyze bycatch and discard, we randomly selected 2 shrimp pots from each of 7 sets, for a total of 14 pots per survey. The total bycatch and discards from the rest of the shrimp pots were also analyzed in each survey. The total catch averaged 12 species. Coonstripe and pink shrimp catches averaged 74.7 kg/haul and 12.7 kg/haul, respectively. The weight of the bycatch averaged 33.4 kg/haul. The bycatch consisted mainly of snail fishes(5.1%), brittle stars(5.0%), and short-spined sea urchins(4.1%). Our analysis showed that the ratio of discard was 0.38, the rate of the discard was 27.4%, and the discard per unit effort was 33.4 kg/haul. The Hokkaido shrimp-pot fishermen discarded all of the bycatch except shrimps. Hence, the weight of the bycatch was equal to the weight of the discard. Our results comprise preliminary data that can be used to find ways to reduce bycatch and discard in the shrimp-pot fishery.

Comparison of Numerical Methods for Two-dimensional Wave Breaker on a Plane Beach of Constant Slope (2차원 Beach에서 쇄파의 시뮬레이션을 위한 수치계산기법의 비교)

  • Jeong K. L.;Lee Y.-G.
    • 한국전산유체공학회:학술대회논문집
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    • 2004.03a
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    • pp.119-125
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    • 2004
  • Unsteady nonlinear wave motions on the free surface over a plane beach of constant slope are numerically simulated using a finite difference method in rectangular grid system. Two-dimensional Navier-Stokes equations and the continuity equation are used for the computations. Irregular leg lengths and stars are employed near the boundaries of body and free surface to satisfy the boundary conditions. Also, the free surface which consists of markers or segments is determined every time step with the satisfaction of kinematic and dynamic free surface conditions. Moreover, marker-density method is also adopted to allow plunging jets impinging on the free surface. The second-order Stokes wave theory and solitary wave theory are employed for the generation of waves on the inflow boundary. For the simulation of wave breaking phenomena, the computations are carried out with the plane beach of constant slope in surf zone. The results are compared with each other. The marker-density method is better then the hybrid method. Also they are compared with other existing experimental results. The Agreement between the experimental data and the computation results is good.

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Evaluation of Occupant Protection of Passenger Vehicles at IIHS Side Impact (소형 승용차량의 측면충돌 시 탑승자 보호성능 평가)

  • Kim, Guanhee;Lim, Jonghun;Lim, Jangho;Park, Insong;Cho, Chongdu
    • Transactions of the Korean Society of Automotive Engineers
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    • v.22 no.1
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    • pp.46-51
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    • 2014
  • 2,097 deaths out of 5,229 by traffic accident occurred by vehicle to vehicle crash and 855 deaths out of 2,097 occurred at side crash in 2011. Korean government adopted New Car Assessment Program to reduce the wounded and deaths at traffic accident in 1999 and side impact test has been added in 2003. 43 out of 53 vehicles tested in NCAP side impact rated 4 and 5 stars means the highest occupant protection. In this study three small class vehicles have been tested according to Insurance Institute for Highway Safety's side crashworthiness test protocol. IIHS test protocol uses 1,500kg moving barrier rather than NCAP's 950kg and the occupant protection rated Good, Acceptable, Marginal and Poor based on injury measure, structural integrity and head protection.

Ground-based and On-satellite Observations of Be and B Stars (인공위성관측과 지상관측에 의한 Be성과 B성의 연구)

  • 정장해
    • Journal of Astronomy and Space Sciences
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    • v.5 no.1
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    • pp.9-18
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    • 1988
  • Gamma Cassiopeae has been observe at Yonsei University Observatory(YUO) for 31 nights in the period 1983-1987 and a total of 312 UBV observations(104 in each colour) was secured. Light curves of ${\gamma}$ Cas in V, B-V, and U-B have been constructed with the YUO data; among them we present selected light curves of 5 different long nights. Discussed are the general photometric behaviour of ${\gamma}$ Cas, especially in connection with B-V changes, V/R variations of $H\alpha$ and H$\beta$, and high velocity narrow component(hvnc) exhibited in the far UV. Six spectral image sets of $\varepsilon$Per archived on IUE satellite are reduced and their line profiles in C IV and Si IV resonance lines are analyzed to find out any change, but the evidence is unlikely.

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The Impact of the United States Fashion on Korean Fashion in 20th Century

  • Oh, Keunyoung;Choi, Jeongwook
    • Journal of Fashion Business
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    • v.21 no.3
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    • pp.80-92
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    • 2017
  • Fashion trend is more than a social phenomenon that multitudes of people accept as popular styles of clothing. The purpose of this study was to understand the influence of fashion trend over time and distance. Geographically thousands of miles apart, the U.S. has strongly influenced fashion in Korea, revealed by references and historic depictions collected from literature and web sites. Results of the study are summarized as five issues: First, emergence of female missionaries from the U.S. American missionaries working in the late Great Korean Empire performed a significant role importing Western culture to Korea. Second, as opportunities of education increased, women studying abroad introduced Western fashion to Koreans when they returned to Korea. They were more open to Western culture than other Koreans and moderately harmonized their Korean sentiment and Western culture, mitigating cultural shock and enabled other Koreans to accept Western culture. Third, the effect of fashionistas on media. Singers working for U.S. armies stationed in Korea and movie stars appearing in Hollywood movies profoundly affected Korean pop culture and fashion trends in Korea. Fourth, following First Lady Jacqueline Kennedy of the U.S. She was an influential figure in those days and a fashion leader as well. Lastly, acceptance of working girl fashion depicted in American television shows. American working girls depicted on American TV shows were highly admired by young Korean women, so the fashion of American working girls became a major fad among young Korean women.

TWO-COLOR VR CCD PHOTOMETRY OF OLD NOVA V603 AQUILAE

  • Andronov Ivan L.;Ostrova Nataliya I.;Kim, Yong-Gi;Burwitz V.
    • Journal of Astronomy and Space Sciences
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    • v.22 no.3
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    • pp.211-222
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    • 2005
  • Results of 6 nights of CCD VR photometry of the nova-like variable V603 Aquilae (Nova Aquilae 1918) obtained at the Mallorcian 35-cm telescope in July 2004 are reported. The ephemeris for the superhump maximum is Max.HJD=2453213.60546(96)+0.14813(10)E. The waves with $3.^d9,\;1.^d4,\;0.^d135$ are statistically significant, which may be interpreted as the negative superhump-orbital, the beat periods (negative superhump- positive superhump) and the negative superhump with low amplitude, respectively. Another possible time-scale is $0.^d8,$ which has no coincidence with the beat periods. Quasi-periodic oscillations with an effective period of 18 minutes have been detected, which are close to 15.6 minutes reported by some authors. Their effective semi-amplitudes are $^m.045\;and\;0^m.051$ for V and R, respectively. This corresponds to the 0.12 mag excess in the color index V-R as compared with the mean color, which can be understood as the pulsed emission in the hotter inner parts of the accretion disk, similar to that observed in TT Ari and MV Lyr.

Radial Velocity and Photometric Study of the Long Period Interaction Binary AQ Cas

  • Lee, Yong-Sam-;Chun, Yong-Woo;Jeong, Jang-Hae
    • Bulletin of the Korean Space Science Society
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    • 1992.10a
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    • pp.15-15
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    • 1992
  • AQ Cassiopeiae (BD+61`0242, uv=10, Sp=B3+Bg) is a totally eclipsing binary system with the obital period of about 12 days. 71 was observed for 15 nights in 1985 with the1.8-m telescope at the DAO, employing a Reticon and a three-stage image tube attached to the spectrograph. And also, photometric observations of AQ Cas had been made inUBv for six years from 1982 to 1988 at Yonsei University Observatory(YUO). This work includes UBV observations obtained at YUO as a part of The Ten-Year Observing Program(1982-1992). Double lined radial, velocity curves and Ufv light curves of AQC as are constructed. The light curves and radial velocity curves show a strong evidence of circumstellar matter or mass stream. It is clear at the phases of just outside externaleclipse contacts, particularly at phase 0.8-0.9, shown in Figures 1 and 2. A solution by combining the radial velocity and photometric curves of the binary was obtained with the Wilson-Devinney Code. We found that the system is semi-detached with the coolcomponent filling its Roche lobe. The absolute dimensions of AQ Cas are calculated. The result shows that this system consists of two massive and subgiant stars.

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CALIBRATION OF STELLAR PARAMETERS OF 85 PEG SYSTEM

  • Bach, Kiehunn;Kim, Yong-Cheol;Demarque, Pierre
    • Journal of Astronomy and Space Sciences
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    • v.24 no.1
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    • pp.31-38
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    • 2007
  • We have investigated the evolutionary status of 85 Peg within the framework of standard evolutionary theory. 85 Peg has been known to be a visual and spectroscopic binary system in the solar neighborhood. In spite of the accurate information of the total mass (${\sim}1.5M_{\odot}$) and the distance (${\sim}12pc$) from the HIPPARCOS parallax, it has been undetermined an individual mass, therefore the evolved status of the system. Moreover, the coupled uncertainties of chemical composition and age, make matters worse in predicting an evolutionary status of the system. Nevertheless, we computed the various possible models for 85 Peg, and then calibrated stellar parameters by adjusting to the recent observational data. Our modelling computation has included recently updated input physics and stellar theory such as opacity, equation of state, and chemical diffusion. Through a statistical assessment, we have derived a confident parameter set as the best solution which minimized $X^{2}$ within the observational error domain. Most of all, we found that 85 Peg is not a binary system but a triple system with an unseen companion 85 Peg $B_{b}\;{\sim}0.16M_{\odot}$. The aim of the present paper is (1) to provide a complete modelling of the stellar system based on the evolutionary theory, and (2) to constrain the physical dimensions such as mass, metallicity and age.

Star Visibility Analysis for a Low Earth Orbit Satellite

  • Yim, Jo-Ryeong;Lee, Seon-Ho;Yong, Ki-Lyuk
    • Bulletin of the Korean Space Science Society
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    • 2008.10a
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    • pp.28.2-28.2
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    • 2008
  • Recently, star sensors have been successfully used as main attitude sensors for attitude control in many satellites. This research presents the star visibility analysis for star trackers and the goal of this analysis is to make sure that the star tracker implementation is suitable to the mission profile and scenario and satisfies the requirement of attitude orbit control system. As a main optical attitude sensor imaging stars, accomodations of a star tracker should be optimized in order to improve the probability of the usage by avoiding the blinding (the unavailability) by the Sun and the Earth. For the analysis, a statistical approach and a time simulation approach are used. The statistical approach is based on the generation of numerous cases, to derive relevant statistics about Earth and Sun proximity probabilites for different lines of sight. The time simulation approach is performed for one orbit to check the statistical result and to refine the statistical result and accomodations of star trackers. In order to perform simulations first of all, an orbit and specific mission profiles of a satellite are set, next the earth proximity probability and the sun proximity probability are calculated by considering the attitude maneuvers and the geometry of the orbit, and then finally the unavailability positions are estimated. As a result, the optimized accomodations of two star trackers are suggested for the low earth orbit satellite.

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