• Clean Technology
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• v.19 no.4
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• pp.459-463
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• 2013

Recent rapidly growth in nanotechnolgies is promised novel benefits through the exploitation of their unique industrial and biomedical applications. In addition, these nanomaterials and nano-consumer products have increased in quantity per year, and thus their uncontrolled release into the environment is anticipated to grow dramatically in future. Many papers for cytotoxicity of nanomaterials have been already reported, and thus government supports has funded to various research topics for nanosafety. Herein, we analyzed the importance and performance of nanosafety researches and tried to show the research direction where we have to go.

• The Journal of the Korea Contents Association
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• v.14 no.6
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• pp.307-318
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• 2014

This study investigated how people perceived the importance of health message design principles including gist presentation, usefulness of content, format, and intuitive design and how well a webzine article published by Korean Ministry of Food and Drug Safety was designed in terms of the four design principles. This study also explored what individual characteristics influenced the perceptions of health message design principles. A total of 294 adults participated in the survey, and their responses were analyzed with the Importance-Performance Analysis method. Participants perceived that usefulness of content was most important in the text design; gist presentation was most important in the visual design; and format was well designed in both text and visual messages. This study showed that it is crucial to improve the quality of visual health messages particularly in terms of gist presentation and intuitive design. We also found that individuals' interest in health played a significant role in the perceptions of health messages. These results were discussed in regards to principles and strategies for the effective design of health messages.

• The Journal of the Korea Contents Association
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• v.19 no.7
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• pp.314-322
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• 2019

The purpose of this study is to analyze the importance and performance of CK-1, The research subjects were self-enrolled questionnaires for students who took social economics subjects and analyzed the importance and performance using IPA. As a result of the research, it is necessary to establish the basis of social economic specialization in order to achieve the goal of CK-1, and it is necessary to establish educational curriculum related to industry and academy in addition to cultivating creative talents. And to improve the importance of these programs and improve their performance in order to enhance the undergraduate education and attract the creative economy. The implications of this study are as follows: The results of the evaluation to achieve the goals of CK-1 recognize that the importance and the performance of the social economy students are high. However, It is necessary to make efforts to improve the university constitution, to improve the education of the undergraduate education, and to attract the creative economy in order to characterize the local university targeted by the Ministry of Education and the project team.

• The Journal of the Korea Contents Association
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• v.17 no.6
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• pp.661-671
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• 2017

The purpose of this study is to compare and analyze the difference between the importance perceived by pre-school teachers and their actual performance in regards to the 7 Guidelines of Safety Education set out by the Ministry of Education, and through the analysis, to identify the items that need priority support and those that need long-term improvement efforts for exemplary safety education for young children. For this, mean average and standard deviation were calculated and paired sample t-test conducted, and IPA(Importance-Performance Analysis) matrix method was performed to analyze the priority and long-term support items and improvement needs. The study results show differences in all areas and all items in the 7 Guidelines of Safety Education by the MoE in the pre-school teachers' perceived importance and actual performance. Areas and items that are identified to be in need of priority support for exemplary safety education in pre-schools; 2 items under 'Violence and Personal Safety' area and I item under 'Substance and Internet Addictions' area. Areas and items that are identified to be in need of long-term improvement efforts are; 6 items under 'First Aid and Emergency Treatment' area, 1 item under 'Violence and Personal Safety' area, 3 items under 'Workplace Safety Culture' area, 3 items under 'Substance and Internet Addictions' area and 1 item under 'Disaster and Safety' area.

• The Journal of the Convergence on Culture Technology
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• v.6 no.4
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• pp.339-345
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• 2020

This study intended to analyze pre-service elementary teachers' perceptions of teacher knowledge based on the Technological, Pedagogical, and Content Knowledge (TPACK) framework. Seventy-four pre-service elementary teachers who were enrolled at an University of Education located in mid-continent of Korea participated in a survey. Results of the survey was analyzed using Importance-Performance Analysis (IPA) method. It was found that perception of importance was significantly higher than that of performance at all seven domains of the TPACK. IPA matrix extracted from the survey indicates that Technological Content Knowledge (TCK), Technological Pedagogical Knowledge (TPK), and TPACK which are related to technology especially need to develop. Results of this study also show the necessity to support pre-service teachers so that they can have opportunities to develop and use technology-related knowledge and skills. This study especially implies that technological knowledge needs to be integrated with content and pedagogical knowledge when implementing curriculum and educational programs for pre-servie elementary teachers.

• Korean Journal of Construction Engineering and Management
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• v.20 no.3
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• pp.39-45
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• 2019

Crew productivity in the construction industry is an important indicator of soundness and efficiency of work process, since all works in a site are conducted as groups of people. A survey was conducted in order to reveal importance and performance of major management factors affecting crew productivity in road bridge construction site using IPA. As a result of the analysis, it was found that 'Construction equipment' and 'Human resource related' factors among five major-categories are most important but with low performance. Furthermore, from another analysis with 27 factors of sub-categories, it is revealed that factors needed sustained attention are four, namely 'Just-in-time machinery delivery', 'Formation of a crew members', 'Skill of workers', and 'Site control and management', whereas those needed much more improvement are five, such as 'Machinery performance', 'Clearity of Design', 'Clearity of shop drawing', 'Timing of work instruction and approval', and 'Clearity of work instruction'. Findings from this study will enable road agencies as well as road construction experts to enhance crew productivity in a site.

• Korean Journal of Construction Engineering and Management
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• v.15 no.1
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• pp.62-69
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• 2014

Since a government policy greatly affects markets and firms, an evaluation on government's policies is recognized as a critical issue. In Korea, two major policy plans on CM(Construction Management) include the Construction Industry Promotion Plan and the Construction Technology Promotion Plan from which Government's CM policies can be understood. The objective of the study is to analyze and discuss CM firm's perception and evaluation toward the Government's CM policies of the two plans based on the Gap analysis. The paper identified that the CM firms perceive that the Government's CM policies properly deal with key issues of the industry. However, they evaluate that the execution of the policies has been overall under-performed. As a way forward, the Government needs to improve on the execution plan and performance measurement rather than to develop new policy agenda.

• Journal of Internet Computing and Services
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• v.4 no.6
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• pp.43-55
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• 2003

Workflow mining is a newly emerging research issue for rediscovering and reengineering workflow models from workflow logs containing information about workflows being executed on the workflow engine. In this paper, we proposed workcase mining which was used dependency among activities. Main purpose of this paper is to minimize discrepancies between the modeled workflow process and the enacted workflow process as it is actually being executed. That is, we can get a complete set of activity firing sequences on buildtime. Besides, we can discover from workflow logs that which path out of all reachable paths a workcase has actually followed through on runtime. For this purpose we proposed two algorithm, the one is 'Activily-Dependent Net Algorithm' and the other is 'E-Walk Series Analysis Algorithm'.

• Proceedings of the Korean Information Science Society Conference
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• 2001.10b
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• pp.517-519
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• 2001

본 논문에서는 최근접점 탐색 알고리즘(Nearest Neighbor Searching)을 사용하여 고차원에서 질의점을 효과적으로 찾기 위한 방안을 제안한다. 최근접점 탐색에서 정확도와 실행속도는 반비례 관계를 가지며 기존에 제안된 최근접점 탐색 알고리즘의 경우, 차원이 증가할수록 탐색 시간이 기하급수적으로 증가하게 되어 고차원에서 질의점을 탐색할 경우 실행시간이 현저하게 길어진다. 최근접점 탐색을 실세계에서 적용할 경우 정확도도 중요하지만 실행 속도 또한 중요하다. 이 점을 감안하여 본 논문에서는 고차원 데이터를 저차원으로 압축하여 질의점을 탐색하고 압축 이전과 이후의 결과를 비교한 후, 이를 통해 정확성과 실행속도의 관계를 분석한다. 본 논문에서는 제안한 차원 압축을 이용할 경우 정확성이 중요한 요소가 아닌 탐색에서 상당한 실행속도가 개선될 것으로 기대된다.

• Asia-Pacific Journal of Business Venturing and Entrepreneurship
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• v.17 no.1
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• pp.79-87
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• 2022

Recently, as the awareness of the necessity of entrepreneurship education has spread in secondary education, the competency of educators in the field of education has become more important. This study tried to derive the priority of education needs by exploring the competency of educators to practice entrepreneurship education and the result from analysis of the difference in importance and performance. For conducting the analysis, this study conceptualized entrepreneurship education competency based on the TPACK (Technological Pedagogical Content Knowledge) model and developed a questionnaires to measure those competencies. Using TPACK and developed questionnaires, a survey was conducted on 217 secondary school teachers who were interested in entrepreneurship education, and derived the difference between importance-level and current-level was analyzed with a t-test. As a result of the study, for all sub-factors of TPACK, the mean of importance-level was higher than the mean of current-level, indicating that educational prescription was required. Also, as a result of analysis of Borich's requirements and The Locus for Focus Model, it was found that the factor with the highest priority in education was CK(Content Knowledge). Based on the results of study, implications for strengthening competencies for entrepreneurship educators were derived.