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Back, Jang Yeol,Yu, Hojeong,Song, Inho,Kang, Il,Ahn, Hyungju,Shin, Tae Joo,Kwon, Soon-Ki,Oh, Joon Hak,Kim, Yun-Hi American Chemical Society 2015 Chemistry of materials Vol.27 No.5
<P>Systematic side-chain engineering has been performed for diketopyrrolopyrrole-selenophene vinylene selenophene (DPP-SVS) polymers to determine the optimal side-chain geometries for the most efficient charge transport, and the structure–property relationship has been thoroughly investigated using a range of analyses. A series of DPP-SVS polymers, ranging from 25-DPP-SVS to 32-DPP-SVS, with branched alkyl groups containing linear spacer groups from C2 to C9 has been synthesized, and the electrical performance of these polymers is significantly dependent on both the length of the spacer group and its odd–even characteristics. Spacer groups with even numbers of carbon atoms exhibit charge-carrier mobilities that are 1 order of magnitude higher than those with odd numbers of carbon atoms. The optimized charge transport has been obtained from 29-DPP-SVS with a C6 spacer, showing the maximum mobility of 13.9 cm<SUP>2</SUP> V<SUP>–1</SUP> s<SUP>–1</SUP> (<I>V</I><SUB>GS</SUB>, <I>V</I><SUB>DS</SUB> = −100 V) and 17.8 cm<SUP>2</SUP> V<SUP>–1</SUP> s<SUP>–1</SUP> (<I>V</I><SUB>GS</SUB>, <I>V</I><SUB>DS</SUB> = −150 V). Longer spacer groups deviate from the odd–even trend. In addition to the exceptionally high charge-carrier mobilities of the DPP-SVS polymers, the results obtained herein provide new insight into the molecular design of high-performance polymer semiconductors.</P><P><B>Graphic Abstract</B> <IMG SRC='http://pubs.acs.org/appl/literatum/publisher/achs/journals/content/cmatex/2015/cmatex.2015.27.issue-5/cm504545e/production/images/medium/cm-2014-04545e_0008.gif'></P><P><A href='http://pubs.acs.org/doi/suppl/10.1021/cm504545e'>ACS Electronic Supporting Info</A></P>
JAVA와 CORBA 기반의 주문 물품 모니터링 시스템 구현
정기완(Ki-Wan Jung),최정규(Jeong-Gyu Choi),변광준(Kwang-Joon Byeon),윤영태(Young-Tae Yoon),채승기(Seung-Gi Chai),서상일(Sang-Il Seo),백종현(Jong-Hyun Back) 한국정보과학회 1998 한국정보과학회 학술발표논문집 Vol.25 No.2Ⅲ
최근 기업의 경쟁력 확보를 위해 기업내의 분산된 이질적인 정보 시스템을 전사적차원에서 통합을 하려는 노력이 활발히 진행되고 있다. 그 중 많은 경우에 통합 문제를 향후의 IT 환경을 고려하여 객체지향 개념의 JAVA 및 CORBA를 기반으로 해결하려 하고 있다. 하지만, 실제 기업 환경에 적용된 경우는 아직은 드물다. 본 논문에서는 바이어가 전자회사에 주문한 물품의 생산 현황, 출하까지의 예상 시간, 배송일 등을 실시간으로 확인할 수 있는 시스템인 주문 물품 모니터링 시스템(DW-GOMS: DaeWoo - Global Ordering status Monitoring System)의 구현에 대해 설명한다. 이 시스템에 대한 사용자의 요구사항 분석은 Use Case를 이용했고, 분석 및 설계는 OMT 프로세스를 도입하였고 그 결과를 UML로 표기하는 등 객체지향 개발 방법론을 적용했으며, 설계된 결과를 바탕으로 JAVA 및 CORBA를 기반으로 구현하였다. 구현된 시스템은 CORBA를 적용하여 개발 속도를 현저히 줄일 수 있으며, 시스템 분석/설계에 객체지향 개발 방법론을 적용함으로써 향후 시스템 변경에 유연하게 대응할 수 있게 된다.
Importance of relationship quality and communication on foodservice for the elderly
Sunhee Seo,Ki Joon Back,Carol W. Shanklin 한국영양학회 2011 Nutrition Research and Practice Vol.5 No.1
In order to promote foodservice for the elderly, foodservice managers in Continuing Care Retirement Communities (CCRCs) must identify the main factors to enhance the satisfaction and behavioral intentions with food service. The purpose of this study was to investigate the relationships between relationship quality (consisting of trust, commitment, and satisfaction) and communication in the formation of elderly’s behavioral intentions with food services at CCRCs. A survey was administered to residents in two CCRCs and a total of 327 residents participated. A tested structural equation model exhibited good model fit and explanatory power of the study construct. Satisfaction directly influenced word-of-mouth and service quality has an influence on commitment. Commitment was a significant determinant of behavioral intentions to eat more often in the dining room. Also, communication showed positive association with trust. The results provided strong evidence for the importance of satisfaction and communication as a consequence of relationship marketing efforts. Suggestions for future research to better understand the elderly’ behavioral intention judgments were given.
Importance of relationship quality and communication on foodservice for the elderly
Seo, Sun-Hee,Back, Ki-Joon,Carol, W. Shanklin The Korean Nutrition Society 2011 Nutrition Research and Practice Vol. No.
In order to promote foodservice for the elderly, foodservice managers in Continuing Care Retirement Communities (CCRCs) must identify the main factors to enhance the satisfaction and behavioral intentions with food service. The purpose of this study was to investigate the relationships between relationship quality (consisting of trust, commitment, and satisfaction) and communication in the formation of elderly's behavioral intentions with food services at CCRCs. A survey was administered to residents in two CCRCs and a total of 327 residents participated. A tested structural equation model exhibited good model fit and explanatory power of the study construct. Satisfaction directly influenced word-of-mouth and service quality has an influence on commitment. Commitment was a significant determinant of behavioral intentions to eat more often in the dining room. Also, communication showed positive association with trust. The results provided strong evidence for the importance of satisfaction and communication as a consequence of relationship marketing efforts. Suggestions for future research to better understand the elderly' behavioral intention judgments were given.
EFFECTS OF COGNITIVE ENGAGEMENT IN THE DEVELOPMENT OF BRAND LOYALTY AND BRAND LOVE IN HOTEL CONTEXT
Min-Jung Shin,Ki-Joon Back 글로벌지식마케팅경영학회 2018 Global Marketing Conference Vol.2018 No.07
With competition among hotel brands intensifying more than ever before, there has been a burgeoning interest in the hospitality industry on the topic of brand love. However, progress of brand love research in hotel context has been limited and investigation on antecedents of brand love has mainly focused on affective and relational aspects, while neglecting cognitive aspects of brand love. Therefore, the objective of this research was to illuminate the importance of brand love's cognitive aspect by identifying cognitive brand loyalty as a necessary component of brand love in hotel context. In addition, present research suggests that by inducing cognitive engagement among customers, hotel brands can attain cognitive brand loyalty from customers, which in turn derives brand love. To achieve the research objective, a questionnaire with items measuring brand love, cognitive brand loyalty and two aspects of cognitive engagement, cognitive attention and cognitive absorption, was distributed to 300 individuals through Amazon Mechanical Turk. Brand love was measured with scale adapted from Carroll and Ahuvia (2006), cognitive brand loyalty was measured using items introduced by Back and Parks (2003), and cognitive engagement elements were measured using items developed by So, King and Sparks (2014). In analyzing the data, structural equation modeling method was used. The findings of the study indicate that the effect of cognitive brand loyalty on brand love is significant and that the relationship between cognitive attention and cognitive brand loyalty is also positive and significant. However, the relationship between cognitive absorption and cognitive brand loyalty was positive only at a marginally significant level. As a result, the indirect effect of cognitive attention on brand love was positive and significant yet, the indirect effect of cognitive absorption on brand love was insignificant. This study enriches the brand love literature’s spectrum by illuminating the importance of brand love’s cognitive aspect. However, it is important to note that the focus is not necessarily on the cognitive processing or the standards, but on the cognitive engagement experience. In addition, because customers generally process information most heavily during the booking process, present research brings out managerial implications for hotel brands to direct more customers to their own brand website rather than the online-travel-agency( OTA) website. For instance, the results of present research illustrate that price discount or additional amenity are not enough to develop brand love. Rather, hotels should provide loyalty members who book directly through brand sites with more enjoyable, creative, and relevant to self-room shopping experience.
( Jeong-hun Kim ),( Seung-ki Back ),( Jin-ho Sung ),( Eun-song Lee ),( Joo-chan Lee ),( Soo-jin Cho ),( Kyung-lim Moon ),( Yong-joon Park ),( Yong-chil Seo ) 한국폐기물자원순환학회(구 한국폐기물학회) 2018 한국폐기물자원순환학회 심포지움 Vol.2018 No.1
The Minamata Convention on mercury was adopted to protect the health and environment of the people from the emission of mercury and mercury compounds. Mercury is toxic to living things even if relatively small traces are exposed in the body. In addition, there is possibility that mercury may be leaked into the environment during the process of handling and disposing of wastes contaminated with mercury, drawing attention to strengthening and controlling emission regulation. This study discusses regeneration of mercury-contaminating activated carbon from in mercury recovery process. Mercury in activated carbon was desorbed by thermal treatment and the regeneration efficiency was confirmed by mercury content and iodine adsorption comparing new and spent activated carbon. Up to 95% of mercury that is desorbed and up to 86% adsorption performance was regenerated at 673 K. Therefore, it is expected that activated carbon can be reused many times by regenerating it through thermal treatment without disposal of mercury-containing waste activated carbon.