• Journal of Construction Engineering and Project Management
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• v.8 no.1
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• pp.10-21
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• 2018

Many construction projects involve a plethora of safety-related problems that can cause loss of productivity, diminished revenue, time overruns, and legal challenges. Incorporating data collection and analytics methods can help overcome the root causes of many such problems. However, in a dynamic construction workplace collecting data from a large number of resources is not a trivial task and can be costly, while many contractors lack the motivation to incorporate technology in their activities. In this research, an Android-based mobile application, Preemptive Construction Site Safety (PCS2) is developed and tested for real-time location tracking, trajectory prediction, and prevention of potential collisions between workers and site hazards. PCS2 uses ubiquitous mobile technology (smartphones) for positional data collection, and a robust trajectory prediction technique that couples hidden Markov model (HMM) with risk-taking behavior modeling. The effectiveness of PCS2 is evaluated in field experiments where impending collisions are predicted and safety alerts are generated with enough lead time for the user. With further improvement in interface design and underlying mathematical models, PCS2 will have practical benefits in large scale multi-agent construction worksites by significantly reducing the likelihood of proximity-related accidents between workers and equipment.

• East Asian Journal of Business Economics (EAJBE)
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• v.9 no.4
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• pp.43-54
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• 2021

Purpose - Stakeholders play a vital part in the company's CSR activities and they are part of the company's achievement and affect the company's achievement or business objectives. This study aims to add insight into the already existing knowledge how the organizational culture can promote corporate social welfare activities. Research design, Data, and methodology - The current authors obtained text data for the possible practical suggestions which might be used for the creation of coding method. That implies that the present author investigated only trustable textual sources to provide for the possible solutions such as peer-revied sources and published book. Result - Research results indicated that organizational culture promotes corporate social welfare activities by making people know their values and understand how they come about. Not every community knows what its members want and how to achieve its needs. Sometimes, a community can obtain the values and principles of an organization and incorporate them into community values. Conclusion - Executive leadership and customers are part of society. Any strategy that influences their operation and works ethic influences the contact of the community. This research found methods vital in setting up an excellent culture that enhances profitability and the corporate social welfare activities through motivation and communication.

• Journal of Korean society of Dental Hygiene
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• v.7 no.3
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• pp.343-354
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• 2007

This study is to provide basic materials for the purpose of maximizing satisfaction of university students with campus life and ensuring competitiveness of university by establishing educational conditions to make university students adapt themselves to campus life, enhancing their satisfaction with campus life and making and executing improvement methods of areas showing low satisfaction with campus life and selects 210 students studying dental hygiene at C university in Jeonnam region as subjects of research and as a result of examining their satisfaction with campus life and department using questionnaire, the following conclusions are obtained. 1. Subjects of research are 39.6% at the first grade, 38.1% at the second grade and 22.3% at the third grade, 51.0% of subjects graduated from academic high school, 70.3% lived in lent house or dormitory, 85.6% had normal health state and 60.4% had good personal relationship with schoolmates. 2. On information of dental hygiene before admission, 50.5% of subjects had it a little. On the Source of information in selecting department, 21.8% was through internet, on the period of selecting department, 33.2% was before application and on motivation of selecting department, 33.2% was because of good employment. 3. On satisfaction with this university, 46.0% answered normal, 34.2% answered they were dissatisfied with university and reasons of such a dissatisfaction were environment around school at 23.3% and scholarship and welfare system at 21.3%. On academic results, 58.4% marked average. On club activity, 82.7% didn't join in any club activity and on their current great trouble, 53.5% answered passing national qualification examination. 4. On satisfaction with department of dental hygiene, 57.4% answered that they were satisfied with their department and 19.3% were dissatisfied with it. On reasons of their dissatisfaction with department, 35.4% answered it was because of poor facility and 20.8%, difficult curriculum. On requirements of professors at department of dental hygiene, 51.5% wanted to have personal contact with their professors. 5. On motivation of employment, 50.5% was for economic reason. On areas desired, 44.1% was dental clinic and on standard of choosing job, 40.1% was job with high salary. On period of employment desired, 75.7% said they wanted to continue to work. 6. There were significant differences at satisfaction with campus life according to grade(p<0.01) and between campus life and satisfaction with department depending on health state(p<0.05). 7. There was statistically significant difference in satisfaction with department according to academic results(p<0.05).

• Archives of design research
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• v.14 no.3
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• pp.107-116
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• 2001

Despite young age, Internet, as new advertising media, is actively studied worldwide. In 1995, the department of multimedia-related study was first founded in Technical Institute and has carried out the On Internet banner, user is not an object to accept only a message but has a specification to contact with banner actively having various motivation and desire. Internet advertising has various types but banner and e-mail type advertising are main stream. In the view point of recognition and concern rate, banner is very effective because it does not set limit to specific target, but is shown to unspecific audience. Acceding to studies, usage frequency and effect of e-mail type advertising is growing up. And e-mail type advertising is more active because it can target specific audience with various life style. If we can say banner is not so effective in spite of simply good exposure frequency, we can find theoritical background that e-mail type advertising is more effective internet advertising media because high click frequency. And we suppose that this study can be a guide line for measuring process of Internet advertising effect.

• Korean Journal of Metals and Materials
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• v.48 no.6
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• pp.533-542
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• 2010

The specific motivation for joining an Al alloy and Zn-coated steel arises from the need to save fuel consumption by weight reduction and to enhance the durability of vehicle structures in the automobile industry. In this study, the lap joining A6K31 Al alloy (top) and SGARC340 Zn-coated steel (bottom) sheets with a thickness of 1.0 mm and 0.8 mm, respectively, was carried out using the friction stir weld (FSW) technique. The probe of a tool did not contact the surface of the lower Zn-coated steel sheet. The friction stir welding was carried out at rotation speeds of 1500 rpm and travel speeds of 80~200 mm/min. The effects of tool geometry and welding speed on the mechanical properties and the structure of a joint were investigated. The tensile properties for the joints welded with a larger tool were better than those for the joints done with a smaller tool. A good correlation between the tensile load and area of the welded region were observed. The bond strength using a larger tool (M4 and M3) decreased with an increase in welding speed. Most fractures occurred along the interface between the Zn-coated steel and the Al alloy. However, in certain conditions with a lower welding speed, fractures occurred at the A6K31 Al alloy.

• Journal of Engineering Education Research
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• v.27 no.1
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• pp.3-12
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• 2024

The degree-linked programs for employees, operated by joint training centers in specialized universities that have implemented work-study integrated programs, are educational programs that require an annual government budget of around 80 billion KRW. However, the 70+ universities running these programs face issues such as a decline in academic achievement and an increase in dropout rates among students. In this paper, I conducted multiple regression analysis based on observed and measured information to examine whether the participating students in these programs are achieving an appropriate level of academic performance and to identify the factors that universities need to invest in to achieve that level. To do this, I hypothesized a causal relationship between the university's input factors and students' academic achievement, and used the SPSS program to analyze the statistical data, confirming the validity of the hypothesis. The collected data for the study were obtained through a survey developed using a Likert 4-point scale, which quantified the distribution of grades among students enrolled in IT-related departments offering the degree-linked programs for employees and the emotional contact efforts made by the universities to motivate them for academic success. Particularly, through the results of multiple regression analysis, it was confirmed that these input factors, unlike those for students in general education programs, require more personalized and frequent interactions.

• Asia-Pacific Journal of Business Venturing and Entrepreneurship
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• v.9 no.4
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• pp.135-144
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• 2014

This study has examined how the childcare teachers have been evaluating themselves on system absorption who have been working in the house of the children at the time when the sight of the society has been expanding to the house of the children through the spread of the understanding of the importance of the role and the strengthening of the leadership of the diverse types of the leadership of the childcare teachers in the house of the children, and also this study has observed the main causes affecting such situations. This study has also analyzed the main causes such as the cause of self understanding on job satisfaction of the children's house teachers, the cause of self understanding on the leadership of the principal, demographic characters, and characters related with the place of work affecting the system absorption(Emotional Absorption, Normative absorption, and lasting absorption) with the children's house teachers as the objects working in the area of the City of Seoul. The results of the analysis have showed that job satisfaction, individual consideration, intellectual stimulation, giving motive, age, schooling, type and scale of facility, grade and others have been appeared to have been significantly affecting the self evaluation on system absorption demographically. In other words, the child care teachers have had higher degree of reaction to the system absorption in affirmative direction when they come into contact with the leadership of the principal in raising the intellectual stimulation, providing the motivation, and giving consideration individually, and when they have higher evaluation on the job satisfaction they them selves understand. Based on such results the principal of the house of the children should spread the leadership for the careful operation of the house of the children for the teachers more positively, and what has been required was giving and developing the diverse operation service for the elevation of the job satisfaction of the childcare teachers.

• Asia pacific journal of information systems
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• v.18 no.2
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• pp.15-40
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• 2008

With the explosive growth of the Internet, Internet shopping malls have become recognized as one of the major purchasing channels for consumers, as well as one of the competitive distribution channels for companies that allow them to contact with customers without intermediaries. It has motivated information systems(IS) researchers to examine the factors influencing consumer behavior and the purchase decision process in the context of Internet shopping malls. Despite the extensive research that has been conducted on the purchase decision process of consumers in online shopping malls, the results have demonstrated a need for further understanding of consumer behavior due to the unique features of virtual space and the characteristics of online consumers. Previous studies from marketing and consumer behavior domains have suggested that the concept of involvement plays an important role in explaining consumers' purchase behavior. Despite the critical role of involvement and the explosive growth of e-commerce, little research has examined the role of involvement in the Internet shopping mall context. With this motivation, this study has two research objectives. First, it introduces and tests an theoretical model capable of better explaining consumers' intention to purchase in the Internet shopping mall context. The proposed model extends and integrates existing models on purchase intention by incorporating purchase experience, innovativeness, and perceived self-control as the consumer factors, along with perceived risk, information provision, and perceived price as the Internet shopping mall factors. Second, this study examines how involvement differences may affect consumers' intention to purchase. For this purpose, two factors from involvement theory, involvement type and involvement level, are introduced into the research model as moderating variables. In order to test the proposed model, the overall approach employed was a field study using the structural equation model. We developed our data collection instrument by adopting existing validated questions wherever possible. All question items were measured with a seven-point, Likert-type scale, with anchors ranging from 'strongly disagree' to 'strongly agree.' Two IS researchers reviewed the instrument and checked its face validity. We collected empirical data for this study over a period of two weeks from subjects who had purchase experiences through Internet shopping malls. A total of 473 complete and valid responses were obtained. We carried out data analysis using a two-step methodology with AMOS 4.0. The first step in the data analysis was to establish the convergent and discriminant validity of the constructs. In the second step, we examined the structural model based on the cleansed measurement model. The empirical results partly support the proposed model and identify the moderating effect of involvement differences. Theoretical and practical implications of the study are discussed, along with its limitations.

• Journal of The Korean Association For Science Education
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• v.18 no.2
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• pp.137-148
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• 1998

This study compared the innovative characteristics of science teachers who participated in the First Student Science Inquiry Olympic and those of science teachers who did not participate in the event. The subjects were science teachers in three groups: (1) the active participants in the Inquiry Olympic who supervised the students contestants, (2) the observers of the Inquiry Olympic who came to see the event, and (3) the ordinary teachers who did not come to the Inquiry Olympic and were sampled through stratified cluster sampling. The study instrument was a questionnaire; all the subjects received the survey questionnaire by mail. The return rate was 45%. In general, the Inquiry Olympic participants(both the student supervisors and the observers) demonstrated different characteristics from the nonparticipants in four categories. Firstly, the Inquiry Olympic participants showed higher level of self actualization, for example, interest in science education, higher inner motivation, stronger desire to innovate than did the nonparticipants. Secondly, the participants demonstrated more involvement in professional activities and greater degree of upward social mobility than the nonparticipants. Thirdly, the participants had communication behaviors different from nonparticipants, e. g.. greater leadership of public opinions, more experience of contact with the change agent, greater tendency to regard their school society as modern. Lastly, the participants had higher social status than the nonparticipants. Implications and suggestions are made for the utilization of the innovation-oriented science teachers to implement of innovations in the future.

• Culinary science and hospitality research
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• v.16 no.3
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• pp.51-65
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• 2010

This study attempts to examine how the perception of risk and customer satisfaction influence the intention to recommend when selecting a Korean restaurant. 257 copies of the questionnaire for the Chinese students studying in Daegu and Gyeongsangbuk-do are analyzed. Three hypotheses were established and the results are as follows. First, as a result of difference analysis about perception of risk depending on dining types, there are significant differences in all factors of preception of risk partially. Second, as a result of difference analysis of customer behavior depending on dining types, there are significant differences between revisit intention and recommendation intention, and dining motivation and preferred Korean menu. Third, the effects of 6 factors of perception of risk on customer behavior are analyzed, and there are decreased customer satisfaction as the customers perceive financial and psychological crisis highly.