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Evaluation of the Dynamic Stability of Subway Bridge in the Applying B2S Track (B2S궤도 적용에 따른 철도교량의 동적안정성 검토)

  • Kong, Sun-Yong;Kim, Sang-Jin;Baik, Chan-Ho
    • Proceedings of the KSR Conference
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    • 2009.05a
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    • pp.20-27
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    • 2009
  • This paper presents an analytic study for replacement of the ballast track in existing subway bridge by the Precast slab panel(B2S) track. To evaluate the dynamic responses on application of B2S track, the time history analysis with the 3D modeling. A total of two models, which were one ballast track bridge and B2S track bridge, were used in the FE analysis. The results of this study show that the dynamic displacement and acceleration of the B2S track bridge were significantly reduced for a higher train speed, compared to the ballast track bridge. Also, the replacement of the ballast track bridge in existing subway bridge by the B2S track increased the structural safety of bridge and ensured sufficient dynamic stability and serviceability. As a result, the servicing subway bridge with B2S track system has need of the reasonable measures which could be reducing the static and dynamic response and improving the performance.

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A Study on the Perception and Practice of Sanitation Training Program at School Foodservice Operations in Chungbuk Province (충청북도지역 학교급식의 위생교육 운영현황 및 조리종사원의 실천수준 평가)

  • Lee, Yeong-Eun
    • Journal of the Korean Dietetic Association
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    • v.12 no.1
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    • pp.68-81
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    • 2006
  • The purposes of this study were to investigate the perception level about food safety of school foodservice dietitians and employees and to assess their food hygiene practice level in school foodservice operation in Chungbuk Province. A questionnaire survey of 250 dietitians and 744 employees at school food service operations was conducted and 143 and 421 respective responses were available for this study. The collected data were analyzed using SAS V8.2 for windows. The main results of this study can be summarized as follows: 98.60% of respondent school foodservice dietitians operated sanitation training programs one time or more per month. As for the reason why the program was not performed at frequent intervals, the majority of the dietitians and employees attributed it to the conventional practices. The employees' perception level of importance about sanitary training program was marked at 4.31(out of 5 scale). The employees' performance level of sanitary training program was ranked above 4.0 point(out of 5 scale) in the 26 items out of the total of 29 items. The results indicated that there was positive correlation between perception level and performance level of sanitation training program. The findings suggest that continuing sanitary education is important to ensuring food safety at school foodservice operations.

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A Comparative Study on the Torso Patterns of Female College Students (여자대학생을 위한 토르소(Torso)패턴의 비교연구)

  • 최미성;안혜자
    • Korean Journal of Human Ecology
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    • v.1 no.2
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    • pp.100-112
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    • 1998
  • The purpose of this study is to investigate the torso patterns by analyzing sensory evaluations. The anthropometric measurements for female college students were obtained between March and October in 1998, and a total of 197 anthropomatric data was used for the somatotype analysis. The appearance and fit of three kinds of torso patterns(ESMOD, FIT, and Muller & sohn) were evaluated by expert panel and the subjects. The results of the anthropometric measurements and sensory evaluations are as follows; The mean height of the anthropometric data for 197 students is 158.98cm. The largest proportion of the three somatotypes(H, M and A type) is big hip type(A type) consisting of 47.7% of all the respondents. The result of the torso pattern evaluations by expert panel indicates that the ESMOD pattern obtains the highest rating in general acceptability. A significant difference(p<.05) in the responses to two questions, the placement of the waist dart, and the gapping & creasing at back hip area was found. The ESMOD and Muller & sohn patterns are given the highest rating in the general acceptability. The result of the evaluation was obtained by the subjects. (Korean J. Human Ecology 1(2):100∼112, 1998)

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Dietitians' Self-Evaluation and Barriers to Sustainable Practices for School Foodservice Management - Focused on Daejeon and Chungnam Area - (학교급식 지속가능경영활동에 대한 영양사의 자기평가와 장애요인 - 대전·충남지역을 중심으로 -)

  • Yi, Na-Young
    • Korean journal of food and cookery science
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    • v.33 no.3
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    • pp.342-352
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    • 2017
  • Purpose: The purposes of the study were to evaluate dietitian's practices for sustainability management and identify barriers of sustainability management at school foodservice. Methods: A total of 220 dietitians working in Daejeon and Chungnam area were surveyed. 187 responses were analyzed for the study. Data were analyzed using SPSS Windows. Results: The respondents were 36% in their 20 s, 38% in their 30 s, 39.6% in elementary schools, 33.7% in middle schools and 26.4% in high schools. Among dietitian's practices for sustainability management, the item with the highest self-evaluation was purchase eco-friendly food (3.75). The category with the highest score was procurement (3.52), by waste management (3.48), production (3.39), menu management (3.36), facility and energy management (3.20), personnel management (3.18), and nutrition education (3.04). In the area of menu management, production management, facility and energy management, nutrition education, and personnel management, scores of elementary school working dietitians were the highest, followed by middle school and high school (p<0.001). The most perceived factor for barriers to sustainability management was principal's indifference to sustainability management (4.10 out of 5 points). ietitian's sustainability management practices and barriers showed a negative correlation. Conclusion: It is necessary to dietitians, employees, and principals' awareness about sustainability management in order to perform effective sustainable management school foodservice.

Awareness of and ethical attitude toward "Do Not Resuscitate"orders in 119 emergency medical technicians (응급구조사의 DNR에 대한 인식과 윤리적 태도)

  • Lee, Jung-Eun;Koh, Bong-Yeun;Kim, Gyoung-Yong
    • The Korean Journal of Emergency Medical Services
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    • v.18 no.2
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    • pp.95-108
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    • 2014
  • Purpose: This descriptive study examined awareness of and ethical attitudes associated with Do Not Resuscitate (DNR) orders in 119 emergency medical technicians (EMTs). Method: In total, 255 paramedics and basic EMTs completed questionnaires between March and May, 2013. Data were analyzed using the SPSS WIN 18.0 program. Results: A chi-square analysis revealed significantly different responses given by paramedics and basic EMTs: Paramedics gave "the reason in which DNR is not necessary", as being "due to unclear DNR decision time" whereas basic EMTs answered that this was "due to a legal problem" ($x^2$ = 12.680, p < .05). Paramedics disagreed with the statement, "It is natural for medical teams to have less interest in patients with DNT orders", whereas basic EMTs agreed with the statement ($x^2$ = 6.666, p < .05). Conclusion: A unified manual on attitude toward DNR orders, taking account of social and culture factors, needs to be developed. This research provides a base line for future research.

The Roles of Health Consciousness and Service Quality toward Customer Purchase Decision

  • TRAN, Tung Anh;PHAM, Ngan Thi;PHAM, Kien Van;NGUYEN, Linh Cam Tran
    • The Journal of Asian Finance, Economics and Business
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    • v.7 no.8
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    • pp.345-351
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    • 2020
  • The study investigates how marketing mix factors are mediated by health consciousness and service quality in creating fresh fruit buying decisions of customers in Vietnam. This study employs samples of customers in Vietnam via the survey questionnaire. The authors have used a total of 256 responses that acquired the valid criteria. The compound of data analysis comprises reliability test, validity test, exploratory factor analysis, group analysis and multiple regression analysis to structure the hypothesized model. Respectively, the structural equation model (SEM) is applied to conduct the multiple multivariate equations. By the assumption of causal-effect relationship between independent variables such as marketing mixed factors, and mediator as health consciousness and service quality, which potentially impact on purchase decision; the SEM method is deployed. The results reveal that consumers have paid no attention to the marketing mix factors, but they care much about service quality and health consciousness. Thus, health consciousness and service quality are effective mediators. These findings are new and contribute to the consumer behavior and retail marketing literature. The findings of this study can provide assistance to managers in the given field to understand more easily the consumer behavior about fresh fruits, then improve their own performance.

Effects of Financial Rewards, Parents and Peers, and Benefits and Costs on Choosing Accounting Career: A Global Perspective

  • KONG, Yusheng;NIMA NGAPEY, Jonathan Dior;QALATI, Sikandar Ali
    • The Journal of Asian Finance, Economics and Business
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    • v.7 no.11
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    • pp.157-167
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    • 2020
  • One of the concerns that have received substantial interest in the accounting field, in particular, in accounting education, is the increasing scarcity and demand for professional accountants around the globe. This study aims to investigate the effects of financial rewards (FR), parents' and peers' influence (PPIF), and benefits and cost (BCE) on students' intention to pursue a career in accounting. A quantitative, convenient random sampling approach was used, and an online survey was conducted to collect data from students studying in China. A total of 311 valid responses were used for model testing based on the theory of reasoned action and the theory of planned behavior. The findings of the study include the positive effects of FR, PPIF, and BCE on accounting career choice (ACC). This study illustrates that FR is the most dominant factor (β=0.479) for influencing ACC. Furthermore, the used factor explained 70% variation in ACC. The results of the study have implications both for accounting firms and universities whether offering or not offering accounting as a major. This study provides a global perspective, which keeps this study unique from other studies. And in this study, the Partial Least Square Structural Equation Modeling (PLS-SEM) has been used which is randomly used in accounting research.

Prioritizing Service Supply-Chain Performance Measures Using Multi-Criteria Decision-Making Methodologies

  • ABBAS, Haidar;ALAWI, Alamir Al;MAKTOUMI, Khadija Al
    • The Journal of Asian Finance, Economics and Business
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    • v.7 no.11
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    • pp.843-851
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    • 2020
  • This study focuses on identifying and prioritizing the broader performance measures for the service supply chains by taking the case of Majan Electricity Company, Sohar, in the Sultanate of Oman. For an examination of the uniformity of ultimate objectives and the priorities therein, two strata of respondents with a total of fourteen respondents were approached for their valuable insights. Suitable structured instruments were personally administered to elicit the insightful and worthy responses. The two multi-criteria decision-making techniques, namely, the Fuzzy Analytical Hierarchy Process and the Best-Worst Method were used to reach a meaningful prioritization of the identified and refined broader performance measurement dimensions. The results show that there exists a minor gap between the two respondents' groups in terms of their prioritizations. The major finding points to the difference in terms of the topmost priorities as revealed by the two set of respondents. For one group of respondents, the customer satisfaction matters the most, whereas for the other group, it is the overall profitability that matters the most. This gap against the utopian state assists in concluding that there is a requirement to reorient the employees so as to have a shared and common understanding of the organizational priorities.

The Influence of Social Support Perceived through SNS on Teachers' Adult Attachment and Occupational Satisfaction (SNS를 통해 지각된 사회적 지지가 교사의 성인애착과 직무만족도에 미치는 영향)

  • Baek, Yu-Mi
    • The Journal of the Korea Contents Association
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    • v.15 no.2
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    • pp.466-475
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    • 2015
  • This study examined the influence of social support perceived through SNS on teachers' adult attachment and occupational satisfaction. In order to do so, survey was conducted on teachers and a total of 103 sets of responses were used for final analysis. As a result of the study on social support perceived through SNS, with regards to adult attachment, it was shown that emotional support, informational support, and instrumental support have influence on attachment anxiety. With regards to attachment avoidance, emotional support was shown to have statistically effective influence. In addition, with regards to influence of social support perceived through SNS on occupational satisfaction, it was shown that emotional support and informational support have effective influence on occupational satisfaction. In conclusion and discussion, the implications and limitations of this study were suggested.

Ginsenosides Evoke Vasorelaxation in Rat Aortic Rings: Involvement of $Ca^{2+}$-dependent $K^+$ Channels

  • Nak Doo Kim;Soo
    • Proceedings of the Ginseng society Conference
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    • 1998.06a
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    • pp.182-189
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    • 1998
  • Administration of ginsenosides, a mixture of saponin extracted from Panax ginseng, decreased blood pressure in rat. Previous studies have shown that ginsenosides caused endothelium-dependent relaxation, which was associated with the formation of cyclic GMP, suggested that ginsenosides caused release of nitric oxide (NO) from the vascular endothelium. The aim of the present study was to characterize the endothelium-independent relaxation to ginsenosides in the isolated rat aorta. Ginsenosides caused a concentration-dependent relaxation of rat aortic rings without endothelium constricted with 25 mM KCI but affected only minimally those constricted with 60 mM KCI. Ginsenoside Rg3 (Rg3) was a more potent vasorelaxing agonist than total ginsenoside mixture and also the ginsenoside PPT and PPD groups. Relaxation to ginsenosides were markedly reduced by TEA, but not by glibenclamide. Rg3 significantly inhibited Cal'-induced concentration-contraction curves and the "50a2'influx in aortic rings incubated in 25 mM KCI whereas those responses were not affected in 60 mM KCI. Rg3 caused efflux of $"Rb in aortic rings that was inhibited by tetraethy- lammonium (TEA), an inhibitor of Ca"-dependent K'channels, but not by glibenclamide, an inhibitor of AfP-dependent K'channels. These findings indicate that ginsenosides may induce vasorelaxation via activation of Ca2'-dependent K'channels resulting in hyperpolarization of the vas- cular smooth muscle with subsequent inhibition of the opening of voltage-dependent Caf'channels. These effects could contribute to explain the red ginseng-associated vasodilation and the beneficial effect on the cardiovascular system.

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