• The Journal of the Korea Contents Association
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• v.17 no.11
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• pp.515-524
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• 2017

This study is focused on finding out how Mers affects tourism industry. To achieve the study purpose we analyzed the differences of management performance of hotels, travel agencies and airlines before and after Mers occurrence. As the result of analysis, there were significant differences in the variables of profit margin ratio before income taxes and operating profit ratio as a profit index before and after Mers occurrence in the hotel firms. And in case of travel agencies, there were significant differences in the variables of debt to equity ratio and borrowings dependence ratio as a stability index before and after Mers occurrence. Lastly there were significant differences in the variables of operating profit ratio as a profit index and total assets turnover ratio as an activity index before and after Mers occurrence in the airlines. Therefore the managers should find an way to reduce the negative image of plague through the effective marketing strategy.

• The Journal of the Convergence on Culture Technology
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• v.7 no.1
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• pp.162-169
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• 2021

The purpose of this study performed to analyze the prior studies done in relation to performance to identify significant results with the concept of sexual knowledge, sexual attitude, and sexual behavior of university students. This study analyzed on a prior paper that studied gender and sexual knowledge, sexual attitude, and sexual behavior as the main topics. Year of presentation, type of research, characteristics, sexual knowledge, sexual attitude, and sex behavior measurement variables and effects were analyzed. Collected data were analyzed using SPSS/ Ver. 26.0 statistical program. Result of this study, variables with significant relationships related to the sex of university students were sexual knowledge, sexual attitude, sexual behavior, date, and sexual experience. Results of this study could be used as basic data for the developing education and programs related to the performance of university students.

• Journal of Korean Society of Transportation
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• v.27 no.4
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• pp.195-206
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• 2009

The deregulation of aviation markets in Europe and the United Sates had led airlines to reconfigure their networks into hub-and-spoke systems. Recent trends of "Open Skies" in the Asian aviation market are also expected to prompt the reformation of airlines' networks in the region. A significant connectivity index is a crucial tool for airlines and airport authorities to estimate the degree of hub-and-spoke operations. Therefore, this paper suggests a new index, Continuous Indirect Connectivity Index (CICI), for measuring the coordination of airlines' flight schedules, applying it to the Asian, European and the American aviation markets. CICI consists of three components：(i) temporal connectivity to identify the attractiveness between connection flights, (ii) spatial connectivity to differentiate the attractiveness by de-routing distance with continuous linear function, and (iii) relative intensity to reflect the effect of direct flight frequency on transfer routes. CICI is evaluated to examine a casual relationship through regression analyses with two dependent variables of the number of transfer passengers and transfer rates. Compared with Danesi's index and Doganis' index through evaluation processes, CICI has a higher coefficient value of determination, implying that it explains the relationship between connectivity and transfer passengers more precisely.

• 전기의세계
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• v.42 no.2
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• pp.60-68
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• 1993

본 Report는 345KV 반합성지 (PPL) 절연 SELF CONTANED OIL FILLED CABLE 개발에 대해 1992년 8월 30일-9월 5일에 프랑스 파리에서 개최된 제34차 CIGRE 대회에서 발표된 내용을 재 정리한 것이다.

• Journal of Korean Society of Transportation
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• v.23 no.2
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• pp.131-142
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• 2005

Punctuality of bus operation can be defined as "timely operation of buses according to their operation schedules." It tis often considered as one of the important measures of bus operation reliability in evaluating bus operation performance from the viewpoint of bus users. Passenger waiting times are severely influenced by the punctuality of bus operations. However, there exist many situations that predetermined schedules cannot be met. In these cases, other definitions of punctuality should be given. This paper is to develop punctuality indexes of bus operation based on various bus operating situations. Bus operation data sampled from Seoul bus system were analyzed to calculate punctuality indexes for a number of bus routes. Then, bus operation punctuality was characterized by various operating conditions. Several interesting results were obtained and explained.

• Journal of the Korea Convergence Society
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• v.7 no.6
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• pp.141-150
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• 2016

This study was done to identify sexual knowledge, sexual attitude, and parent efficacy among parents of preschool child. Participants were 70 couples, parents of preschool child. Data were analyzed using chi-square test, t-test, ANOVA. The difference in recognition and attitude about sexuality education for children among parents, person in charge of sexuality education for children(p=.043), parents' experience of sexuality education for their children(p=.043), the number of communication about sexuality with their children(p=.019), the source of information about sexuality(p=.024) showed significant difference. Sexual knowledge(p=.018) and sexual attitude(p=.006) showed meaningful difference. As a result of this study, it is necessary to develop and conduct differentiated education programs when teaching parents about sexuality education for their children in preschool period, considering these characteristics.

• Journal of Wetlands Research
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• v.13 no.3
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• pp.427-441
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• 2011

This study developed the Climate Variability Index (CVI) to assess the water resources through adding detail indicators into the existing regional Water Poverty Index (WPI) to consider climate variability and flood damage. This study aims at selecting indicators of WPI focused on water availability and regional climate variability, assessing regional variability of the indices during 1998-2007, and providing information to help determining the priority of water sector policies, investment, and applications. The WPI represents the relationship between the level of welfare and the water use. Considered with flood management and climate variability, CVI added by regional characteristics may be used in water resources management as well as flood mitigation for coping with climate change.

• Journal of Korean Society of Steel Construction
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• v.15 no.4 s.65
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• pp.389-401
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• 2003

The purpose of this study is to develop an algorithm, which can be designed the optimal sections of the composite framed structures constituted with the beams and the columns consisted of H type of steel section and concrete considering the reliability index. The optimized problem or the composite framed structures is formulated with the objective function and the constraints taking the section sizes as the design variables. The objective functions are constituted by the total costs of constructions. Also, the constraints are derived by considering the reliability index of section stress and allowable stress. The algorithm optimized the section of the composite framed structures utilizes the SUMT method using the modified Newton-Raphson direction method. The optimizing algorithm developed in this study is applied to the numerical examples with respecting a one-bay, one-story composite framed structure and a one-bay five-story one for the practical utilization of design on the composite framed structures using the reliability indices$({\beta})$ three and zero. In addition, their numerical results are compared and analyzed to examine the possibility of optimization the applicability, and the convergence this algorithm.

• Journal of Digital Convergence
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• v.15 no.12
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• pp.1-11
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• 2017

The purpose of this study was to investigate the relationship between sexual knowledge or sexual attitudes and reproductive health promotion behaviors of undergraduate students, and to analyze the effects of sexual knowledge on reproductive health promotion behaviors. The research method was a descriptive research study. The subjects were 357 university students with 4 year university students. The research tools used structured questionnaires to measure sexual knowledge, sexual attitudes, and reproductive health promoting behaviors. As a result of the research, first, sexual knowledge of students showed a significant positive correlation with reproductive health promotion behaviors, and there was no relationship between sexual behavior and reproductive health promotion behaviors. Second, sexual knowledge of students had a significant effect on reproductive health promoting behaviors and explained 12.0%. In conclusion, it is suggested that the systematic and practical education program should be developed and applied through university curriculum in order to improve the practice of reproductive health promotion behavior of undergraduate students.

• The Journal of the Convergence on Culture Technology
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• v.7 no.2
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• pp.139-148
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• 2021

The purpose of this study performed to develop a tool to investigate sexual knowledge and sexual attitude of Mongolian university students, and to verify the validity and reliability of the developed tool.. The subjects of the study and data collection were conducted from December 1st to 30th, 2019 with 200 university students from U city in Mongolia. For tool verification, item analysis used content validity, composition validity, and reliability verification. The reliability of the tool was verified using the Cronbach's alpha coefficient, and the SPSS 26.0 version was used for statistical analysis. The results of the study consisted of 14 questions on sexual knowledge and 25 questions on sexual attitude of Mongolian university students. Results of this study could be used as a measurement tool for measuring sexual knowledge and sexual attitude of Mongolian university students and when applying the program.