• Journal of the Korea Institute of Military Science and Technology
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• v.23 no.1
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• pp.76-86
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• 2020

Technology growth curve methodology is commonly used in technology forecasting. A technology growth curve represents the paths of product performance in relation to time or investment in R&D. It is a useful tool to compare the technological performances between Korea and advanced nations and to describe the inflection points, the limit of improvement of a technology and their technology innovation strategies, etc. However, the curve fitting to a set of survey data often leads to model mis-specification, biased parameter estimation and incorrect result since data through survey with experts frequently contain outlier in process of curve fitting due to the subjective response characteristics. This paper propose a method to eliminate of outlier from a technology growth curve using M-estimator. The experimental results prove the overall improvement in technology growth curves by several pilot tests using real-data in Defense Science and Technology Survey reports.

• The Bulletin of The Korean Astronomical Society
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• v.41 no.2
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• pp.57.2-57.2
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• 2016

Polarimetry is an important tool for studying the physical processes in the interstellar medium, including star-forming regions. Polarimetry of young stellar objects and their circumstellar structures provides invaluable information about distributions of matter and configurations of magnetic fields in their environments. However, only a few near-infrared circular polarization (CP) observations were reported so far (before our survey). A systematic near-infrared CP survey has been firstly conducted in various star-forming regions, covering high-mass, intermediate-mass, and low-mass young stellar objects. All the observations were made using the SIRPOL imaging polarimeter on the Infrared Survey Facility (IRSF) 1.4 m telescope at the South African Astronomical Observatory (SAAO). In this presentation, we present the first CP survey results. The polarization patterns, extents, and maximum degrees of circular and linear polarizations are used to determine the prevalence and origin of CP in the star-forming regions. Our results are explained with a combination of circumstellar scattering and dichroic extinction mechanism generating the high degrees of CP in star-forming regions. The universality of the large and extended CPs in star-formaing regions can also be linked with the origin of homochirality of life.

• Korean Institute of Interior Design Journal
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• v.13 no.6
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• pp.91-98
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• 2004

The purpose of this study was to investigate the residents' awareness toward the differentiation of design factors in apartments in order to offer the information helpful to housing designers. Documentary research and questionnaire survey methods were used in this study. In this survey, internet web survey was carried out using questionnaire tool that was extracted in the Preliminary survey. This web survey was carried out on 124 housewives from January 6 2004 to January 20 2004. Data were analyzed with the SPSS PC+ window version 11.0. The major results of this study are as follows. 1) Residents' educational level is high and they are so young nuclear family and they live in Seoul and metropolitan area. 2) They want 85$m^2$ type apartment and the dress room that is so large. 3) Although they have evaluate very Important factors to architectural design which are apartment plan design, space design, interior design, storage design, equipment and high-tech system design, it seems that they are interested in interior design among the design factors in apartments. 4) There is significant difference the evaluation of importance toward the differentiation of design factors in apartments according to housing size when they move to go.

• International journal of advanced smart convergence
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• v.11 no.4
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• pp.155-162
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• 2022

The purpose of this study is to conduct an empirical study on brand authenticity targeting sportswear brand consumers. Through this, we intend to provide the accumulation and implications of authenticity research. For the research model, first, the authenticity of sportswear brand companies was selected as an independent variable. Brand image and brand attitude were selected as the next parameters. Finally, the dependent variable was the intention to pay the premium. Structural equation model analysis was conducted for the structural relationship between these variables. The subjects of this study are consumers who have purchased sportswear brands within the past year. Convenience sampling was used for the sample survey, and 262 people were finally selected as valid samples. The survey was conducted as a non-face-to-face online survey due to the COVID-19 infection. For data processing, frequency analysis was conducted using SPSS 23 to identify the individual characteristics of the survey subjects. In addition, exploratory factor analysis and reliability analysis were performed to refine the scale of the survey tool. Next, using AMOS 21, confirmatory factor analysis and correlation analysis were conducted to verify the measurement model. In addition, structural equation model analysis was conducted to verify the hypothesis. As a result of the analysis, all six hypotheses selected from the research model were adopted.

• Journal of The Korean Association of Information Education
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• v.18 no.1
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• pp.101-110
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• 2014

The upcoming 'creativity society' beyond the knowledge information era requires 'knowledge producers' being capable of expressing their own ideas creatively, rather than 'knowledge consumers'. These days, in the computing environment, physical computing tools which support learners' productive activities beyond their simple function of operating computers are emerging. Among them, Raspberry Pi is exemplary. The computing PC worthy $35 is economic and supports implementation of interactive physical system through the H/W and programming control to detect and respond to the analog world. As a fundamental study of educational application of Raspberry Pi at elementary school and Raspberry Pi, this work was to look into characteristics, advantages and disadvantages, and application examples of the computing tool. Also this researcher conducted a survey with teachers in field to investigate the suitability of Raspberry Pi as a tool in the category of 'understanding of information devices and to explore their awareness of Raspberry Pi. As a result, it was analyzed that Raspberry Pi was a learning tool to support about 74% of educational contents and that teachers showed positive replies in all categories of the survey of their awareness.

• Journal of Korean Library and Information Science Society
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• v.9
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• pp.1-31
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• 1982

A library catalog is most important finding tool to a library collection. This tool should be so designed as to enable users to handle with ease and convenience. Library catalog use study is necessary in order to identify the demands made on the catalog by its actual users and to measure the adequacy with which the catalog is meeting these demands. Many major catalog use surveys were performed by means of questionnaire and interview, but these methods are so difficult and perverse that the results of catalog use studies might often be far from scientific precision. The aim of this paper is to seek the guidelines with which one might assist the catalogers in providing an effective library catalog for their patrons. In order to get the first-hand information an actual survey was undertaken on searching behavior at the catalog of Jeonbug National University Library from November 30 to December 5, 1981 and from May 17 to May 22, 1982. The results of the survey can be summarized as follows: 1. Most of the students (79.77%) use the library. 2. Most of the library patrons (74.52%) use the public catalog as the searching tool to the library collection. 3. 67.85% of the catalog users are interested in searching materials written in Korean, Japanese, and Chinese. 4. 72.86% of the catalog users are interested in searching known items at catalog. 5. In known item searching, 49.44% of the catalog users choose title entry. 6. 20.17% of the catalog users are interested subject searching at the catalog. 7. Reference card is not utilized in searching. 8. For the translated items users want double entries in both vernacular and Korean. 9. At current catalog description, author, title, call number, translator, publisher and joint author are useful entry. Edition, author's date of birth and death, illustrative, size of book and bibliographical notes are not much utilized. 10. 55.39% of the catalog user need systematic guidance on how to use the library catalog and collection.

• Journal of the Korean Society of Environmental Restoration Technology
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• v.16 no.1
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• pp.131-145
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• 2013

The purposes of this research are : to analyze biotop type and carry out conservation value assessment in study areas, Daegu Science Park national industrial complex; to supply basic data for the landscape ecological planning; and to improve the application of assessment model with the development of Biotop Value Assessment Tool (B-VAT). The result is as follows. First of all, the field survey showed 434 species of flora and 220 species of insecta. According to the result of biotop type analysis in the biotop classification system with field survey, 13 biotope groups and 63 biotope types were classified. In the map of biotop type classification, readjusted farmland biotop(FA) was prevalent and forest biotop(E) was shown to the southeast side of the site. Next, according to the first assessment with B-VAT, total 19 biotop types including natural river(BA) with abundant plants had I grade and total 16 biotop types such as vegetable garden adjacent to river(BC) had V grade. In terms of the second assessment, we analyzed total 30 areas, total 82 areas, respectively, which had special meaning for the conservation of species and biotop(1a, 1b) and which had meaning for the conservation of species and biotop(2a, 2b, 2c). This research will be a basic data, which can solve the damage problem systematically and control it landscape-friendly with biotop classification and assessment which we developed. In particular, we expect that biotop value assessment tool(B-VAT) with GIS will be a great contribution to popularity compared with the value model by complicated algorism such as adding-matrix, weight and equal distribution. In addition, this will save the time and improve the accuracy for hand-counting.

• Journal of the Korean Society of School Health
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• v.34 no.2
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• pp.115-122
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• 2021

Purpose: The purpose of this descriptive research is to identify how stress from Covid-19, health beliefs, and social support of college students affect health prevention. Methods: The subjects of the study were 128 university students, excluding health major students, at one university in D City. The survey was conducted from August 1 to 31, 2020. The survey questionnaire consists of 8 items on stress from COVID-19, 12 items adapted from a health belief measurement tool, 12 items from a social support measurement tool, and 11 items adapted from a tool that measures health preventive behaviors. The collected data were analyzed using the hierarchical multiple regression analysis method with SPSS 26.0. Results: In model 1, stress from COVID-19 was statistically significant (β=-.403, p=.003). Model 2 added four health belief factors into Model 1. Stress (β=-.419, p<.001), perceived severity (β=-.193, p=.030), and perceived barriers (β=-.182, p=.009) were statistically significant. In model 3, stress (β=-.413, p<.001), perceived barriers (β=-.147, p=.034), and social support (β=.194, p=.011) were statistically significant. The regression equation was significant (F=15.395, p=<.001) and the model's explanatory power was 53.1%. Conclusion: The results show that when college students had a high degree of health beliefs about COVID-19, the degree of health preventive behaviors was proportionally high. To make them practice preventive health behaviors, it is necessary to develop infection control education programs to improve health beliefs.

• The Journal of the Korea Contents Association
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• v.13 no.12
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• pp.1-8
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• 2013

Teachers, who are the subject of on-site training, cannot create education content easily reflecting their experience for themselves, and also cannot distribute the content to leaners. Even though the content is distributed, there are limited in available devices as well as representable content features. So, an applicable authoring tool is needed at the user level. In this paper, we propose an authoring tool by which users and teachers can make education content easier based on WYSIWYG interface, and can distribute that. The proposed authoring tool supports various media education content of XML format so that viewers on various smart devices can see the content regardless of operating systems. And not only we conduct survey of users to evaluate convenience and expression of proposed authoring tool, but also we check whether the content can be equally visualized on various smart devices.

• The Journal of the Korea Contents Association
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• v.13 no.3
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• pp.240-250
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• 2013

The early detection of suicidal ideation is essential for the prevention of suicide. This study aimed to develop a brief screening tool that can be easily administered in medical settings. The Suicide Risk Screening Tool was designed for use by physicians to provide a screening process that would be reliable, standardized, quick and feasible to implement. A 2-item screening tool was derived from the Screening for Depression and Thoughts of Suicide in the Norton Sound region of Alaska, USA. The scale was modified to reflect the current situation in Korea including the elimination of the personal identification number, and was labeled the Korean Suicide Risk Screening Tool. Its reliability and applicability for medical setting were examined by explanatory study of 7 clinicians. Its validity was examined among a further 325 patients of four different medical institutions, using the results of interviewer-administered survey included demographic, clinical characteristics, and present mental status as the external criterion. A brief 2-item suicide risk screening tool can be used by mental and non-mental health clinicians to accurately detect suicidality in patients.