• Title/Summary/Keyword: companions

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Detection of exoplanet around evolved K giant HD 66141

  • Lee, Byeong-Cheol;Han, In-Woo;Park, Myeong-Gu;Mkrtichian, David E.;Kim, Kang-Min
    • The Bulletin of The Korean Astronomical Society
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    • v.36 no.2
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    • pp.140.2-140.2
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    • 2011
  • We present high-resolution radial velocity (RV) measurements of K2 giant HD 66141 from December 2003 to January 2011 using the fiber-fed Bohyunsan Observatory Echelle Spectrograph (BOES) at Bohyunsan Optical Astronomy Observatory (BOAO). We find that the RV measurements for HD 66141 exhibit a periodic variation of 480 days with a semi-amplitude of 146 m/s. We do not find the correlation between RV variations and a chromospheric activity indicator (H line). The Hipparcos photometry as well as bisector velocity span (BVS) also do not show any obvious correlations with RV variations. Thus, Keplerian motion is the most likely explanation, which suggests that the RV variations arise from an orbital motion. Assuming a possible stellar mass of 1.5 $M{\odot}$, for HD 66141, we obtain a minimum mass for the planetary companion of 7.4 MJup with an orbital semi-major axis of 1.4 AU, and an eccentricity of 0.07. We support that planet occurrence rate around evolved stars is more than 10 % (Dollinger et al. 2009) as well as more massive stars do form significantly more massive planetary companions (Johnson et al. 2007; Lovis & Mayor 2007; Dollinger et al. 2009).

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Gender and Age Differences in Evaluative Criteria and Information Sources of Functional Clothing (성별과 연령에 따른 기능성 소재 의류제품 평가기준과 정보원 연구)

  • Cho, Yun-Jin;Choi, Ju-Hyun;Beak, Hyeon-Kuk
    • Journal of the Korean Society of Costume
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    • v.60 no.9
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    • pp.150-161
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    • 2010
  • In Korea, recent trends indicate an increase in the volume of the functional clothing market. This study investigated the evaluative criteria and information sources of functional clothing according to gender and age. A total of 756 responses were analyzed using descriptive statistics, MANOVA, and Duncan's test. The main effect of gender on the evaluative criteria and information sources of functional clothing was identified. Compared with male consumers, female consumers gave more importance to price and aesthetic criteria. Female consumers take advice from colleagues and companions, as well as use information obtained from mass media to a greater extent than male consumers. Age was seen to have an effect on evaluative criteria and information sources in purchasing functional clothing. Respondents in their forties and fifties took textile quality and durability more seriously. Information available on the Internet and following the dressing styles of celebrities were preferred by respondents in their twenties.

A Qualitative Study on Attracting and Hindering Factors for Fashion Browsing (패션상품 브라우징 유인요소와 저해요소에 관한 질적 연구)

  • Kim, Mi-Sung;Lee, Jin-Hwa
    • Fashion & Textile Research Journal
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    • v.12 no.4
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    • pp.422-430
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    • 2010
  • Shopping is the activity not only purchasing goods/services but also pursuing the emotional satisfaction. Browsing can be defined as shopping behavior looking around the store without purchasing intention. Through the browsing activity, consumers are able to collect the information and be ready for the possible purchases while marketers have an opportunity to inform consumers of products/ stores/ brands. The more browsing activity, the more stimuli for buying, the more unplanned/ impulse buying. Therefore, this is the time that consumer's browsing activity is getting importance in the area of fashion marketing. The purpose of this study was to examine attracting and hindering factors related to browsing activity especially for purchase of fashion items, using a qualitative research method. An in-depth interview was conducted with 10 female shoppers ranged age 21-50. Included in the questions were consumer's opinions about VMD, convenience, traffic, salesman's attitude, companions, prices, sizes and fitting arrangement. The results of this study provide fashion store managers with the detailed and practical information to draw the consumers in the store.

A planetary lensing feature in caustic-crossing high-magnification microlensing events

  • Chung, Sun-Ju;Hwang, Kyu-Ha;Ryu, Yoon-Hyun;Lee, Chung-Uk
    • The Bulletin of The Korean Astronomical Society
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    • v.37 no.2
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    • pp.109.2-109.2
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    • 2012
  • Current microlensing follow-up observations focus on high-magnification events because of the high efficiency of planet detection. However, central perturbations of high-magnification events caused by a planet can also be produced by a very close or a very wide binary companion, and the two kinds of central perturbations are not generally distinguished without time consuming detailed modeling (a planet-binary degeneracy). Hence, it is important to resolve the planet-binary degeneracy that occurs in high-magnification events. In this paper, we investigate caustic-crossing high-magnification events caused by a planet and a wide binary companion. From this study, we find that because of the different magnification excess patterns inside the central caustics induced by the planet and the binary companion, the light curves of the caustic-crossing planetary-lensing events exhibit a feature that is discriminated from those of the caustic-crossing binary-lensing events, and the feature can be used to immediately distinguish between the planetary and binary companions.

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Planetary companions orbiting K giant HD 208527 and M giant HD 220074

  • Lee, Byeong-Cheol;Han, Inwoo;Park, Myeong-Gu
    • The Bulletin of The Korean Astronomical Society
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    • v.37 no.2
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    • pp.107.2-107.2
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    • 2012
  • The purpose of the present study is to search for and study the origin of planetary companion by a precise radial velocity (RV) survey for K dwarfs. The high-resolution spectroscopy of the fiber-fed Bohyunsan Observatory Echelle Spectrograph (BOES) at Bohyunsan Optical Astronomy Observatory (BOAO) is used from September 2008 to June 2012. We report the detection of two new exoplanets in orbit around HD 208527, and HD 220074 with exhibiting a periodic variation of 875.5 and 672.1 days. The examinations of surface inhomogeneous are no related to the RV variations and Keplerian motion is the most likely explanation, which suggests that the RV variations arise from an orbital motion under the influence of planetary companion. We obtain the minimum masses for the exoplanets of 11.5 and 11.1 MJup with an orbital semi-major axis of 2.3 and 1.6 AU and an eccentricity of 0.08 and 0.14, respectively. From the literatures and our estimations of stellar parameters, the luminosity class of HD 208527 is changed K dwarf to K giant and the spectral type of HD 220074 is confirmed M giant rather than K dwarf. HD 220074 is the first M giant star harboring a planetary companion.

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Comparison of Price Sensitivity based on the Shopping Value, Purpose of Use and Social Situation (소비자의 쇼핑가치와 사용목적 및 사회적 상황에 따른 가격민감도 비교)

  • Nam, Eun-Ha;Lee, Jin-Hwa
    • Journal of the Korean Society of Clothing and Textiles
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    • v.33 no.9
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    • pp.1452-1462
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    • 2009
  • This research investigates the factors influencing price sensitivity in fashion products. This study incorporates three essential variables, which were likely to influence price sensitivity: the subjective shopping value of consumers, objective purpose of use, and social situation according to the shopping companions of consumers. A sample of young adult consumers (who had purchase experience of fashion products during the last six-months) was surveyed using a self-administered questionnaire. A 3-way ANOVA was used to evaluate the data. The results show that the utilitarian shopping value of consumers was more sensitive in price than the hedonic shopping value and a self-using purchase was more sensitive in price than a gift-giving purchase. In addition, a correlation effect was significant between the purpose of use and social situation. In addition, the correlation effect among all of the three variables was also significant.

Exploring Residential Street Environments through Walking Companions and Walking Speeds - A Case Study of Mang-won Neighborhoods with the Elderly Focus Group - (동행여부와 보행속도를 고려한 노인의 근린가로환경 이용특성 해석 - 망원동 사례조사를 중심으로 -)

  • Huh, Jinah;Lee, Sunjae;Park, So-Hyun
    • Journal of the Architectural Institute of Korea Planning & Design
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    • v.35 no.1
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    • pp.127-138
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    • 2019
  • This study was to evaluate the walking speed of elderly people by using the travel route big data collected by travel diary and smart phone application. We analyzed the change of walking behavior in the residential street environments of the elderly whether they had a company or not. We interpreted the meaning based on previous studies. In addition, the characteristics of elderly people's use of the residential street environment were analyzed by comparing the change in spatial speed according to the companion. The result reveals that the usage patterns of the residential street environments change depending on whether they were accompanied or not. First, the elderly tend to do more social activities while walking alone than when they were accompanied. When they were accompanied the social activities occur in empty lot near the residential area. However, the social activities of the elderly occur in open space such as neighborhood park or playground while walking alone. Finally, This study has strength that it empirically analyzes the elderly's walking behavior and usage paths in small outdoor spaces, including residential streets.

The Foundation of a Fair Mudarabah Profit Sharing Ratio: A Case Study of Islamic Banks in Indonesia

  • RYANDONO, Muhamad Nafik Hadi;KUSUMA, Kumara Adji;PRASETYO, Ari
    • The Journal of Asian Finance, Economics and Business
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    • v.8 no.4
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    • pp.329-337
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    • 2021
  • This research aims to expose the Islamic perspective on the concept of justice on the Mudarabah contract's profit-sharing ratio. In certain verses in Al-Qur'an, Islamic values in Muamalah, the rules dictated by the Qur'an and its practices, and explanations rendered (more commonly known as Sunnah) by the Prophet Muhammad (pbuh) and Sahabah (the companions of the Prophet Muhammad), and Fiqh Axiom (rules) in Muamalah (Islamic jurisprudence), are used as the instruments of sharia to achieve the study objective. Islamic monetary establishments in Indonesia are still not in full consistency with the Shariah principles, significantly as far as satisfying equity and justice by Islamic banks in mudarabah contract (with clients). The ignominy is the nisbah (ratio) between the capital proprietor and the capital director. There are models or propositions to decide the benefit (profit)-sharing proportion. Nevertheless, none of them explains or specifies the possibility of equity/justice in the profit-sharing ratio. This research utilizes an explorative and subjective methodology that contributes to the philosophical premise of deciding the profit-sharing fairness. The elements of a just ratio for the Mudharabah contract are mutual willingness, the existence of negotiation, and the level of advantages and risks of the labor.

A study on the Environmental Factors of the Fitting Room Affecting Fashion Product Purchase Decisions (패션제품 구매결정에 영향을 미치는 피팅룸 환경 요인에 관한 연구)

  • Hyun-Hee Park;Eun-Kyoung Lee; Jung-Ok Jeon
    • Fashion & Textile Research Journal
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    • v.24 no.6
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    • pp.756-765
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    • 2022
  • The purchase-related responses of MZ generation consumers may vary depending on the environmental factors of the fitting room. Therefore, this study extracted and systematized fitting room characteristics in the retail fashion environment. In-depth interviews were conducted with a total of 50 informants to collect data on the experience of using the fitting room. Then, a qualitative analysis was performed. First, results confirmed that the environmental factors of the fitting room include physical (spatiality, functionality, comfort, and convenience) and human (interactivity and congestion) aspects. Next, additional analysis was performed on functionality and interactivity to clarify the influence of environmental characteristics of the fitting room. These factors were classified into qualitative categories. The study results confirmed that, in the case of functionality, preferred lighting and mirror factors vary depending on the clothing product type, the place and situation for wearing, and individual characteristics. Furthermore, regarding interactivity, the preference for the presence of sales staff or companions differed according to personal traits and the need for additional information and evaluation. The study provides valuable information for effective fitting room space planning for offline fashion stores to meet the needs of MZ generation consumers.

Development of Cold Chain Delivery Service for Pet Healthcare Service using IoT Technology and Service Design (IoT 기술과 서비스디자인을 활용한 반려동물 헬스케어 서비스를 위한 검체 운반 콜드체인 배송 서비스 개발 )

  • Haewoong Shin;Jangsoo Kim
    • Journal of Platform Technology
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    • v.11 no.1
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    • pp.60-71
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    • 2023
  • The pet industry is also developing and growing in various ways as the number of companions is steadily increasing around the world and social awareness of pets has changed to members of the "family." The pet tech market, which can check health changes early by utilizing IOT technology, is also drawing attention as pets often cannot be expressed even if they have health problems. Based on this problem recognition, this study aims to promote the cold chain service market by developing important animal sample transport services in the pet healthcare market and to develop solutions that satisfy all stakeholders such as pets, pets, and animal hospitals. It was developed to apply sustainability related to society and culture as well as economic and environmental values in the research process.

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