• Title/Summary/Keyword: Level of Reliability

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The Effect of Office Workers' Motivation to Choose Clothing and Makeup Colors on Appearance Satisfaction and Self-esteem (직장인의 의복·메이크업 컬러 선택 동기가 외모 만족도와 자아존중감에 미치는 영향)

  • Jeong-Hyun Lee;Seung-Hee Han
    • Journal of the Korean Applied Science and Technology
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    • v.40 no.6
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    • pp.1225-1237
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    • 2023
  • The purpose of this study is to find out the effect of office workers' motivation to choose clothing and makeup colors on appearance satisfaction and self-esteem. The subjects of this study were working women working in Chungcheong-do for two weeks from July 15, 2023 to July 29, 2023, and 696 sampled copies were used for the final analysis. Frequency analysis, factor analysis, reliability analysis, (one-way)ANOVA, and post-verification (Scheffe's) were handled using the SPSS 26.0 program, and office workers' clothing. Correlation analysis, simple regression, and multiple regression were performed to find out the correlation between makeup color selection motivation, and the statistical significance level was p<.I set it to 05. Through this research procedure, the following conclusions were drawn. First, it was found that the motivation of office workers to choose clothes color had a positive (+) effect on appearance satisfaction. Second, office workers' motivation for choosing makeup colors was found to have a positive (+) effect on appearance satisfaction, and physical attractiveness was found to have a positive (+) effect on situational factors. Third, it was found that the color choice of clothes of office workers had a positive (+) effect on self-esteem. Fourth, It was found that the motivation of office workers to choose makeup colors had a positive (+) effect on self-esteem.

A Study for Validation of the Preschool Child Observation Record (COR) for Korean Children (유아관찰기록척도(K-COR-II) 타당화 연구)

  • Shin, Nary;Oh, Jeong Soon
    • Korean Journal of Childcare and Education
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    • v.9 no.6
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    • pp.309-337
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    • 2013
  • The purpose of this study was to validate Preschool Child Observation Record-II developed by High/Scope for Korean preschool children. The subjects of the study were 255 children aged three to six attending child care centers and their head teachers. They were observed for at least two months and completed the Korean version of Child Observation Record-II(K-COR-II). K-COR-II consisted of six categories and 32 items which had five-level-rubrics. The results from an exploratory factor analysis identified one dimension of the scale, there was no evidence of discriminant validity even after face validity was examined. The concurrent validity and internal consistency of the revised scale were relatively high. Also, the mean between the upper and lower groups with regard to item discrimination showed significant difference. It was concluded that K-COR-II can be used as a valid and reliable instrument to various aspects of preschool children's development.

The Development of Policy toward the Students' Access to Their Own Information on NEIS (나이스의 학생개인정보서비스 제공을 위한 인식조사)

  • Jang, Soon-Sun;Lee, Ok-Hwa
    • Journal of The Korean Association of Information Education
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    • v.14 no.2
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    • pp.261-271
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    • 2010
  • NEIS (National Education Information SystTem) provides educational information to parents while students are not able to have the direct access to their own academic information. Students filed their request to the National Human Right Agency. The objective of this study is to investigate the feasibility of students direct access to their own information and how to do it. In detail, online survey was conducted from 3,300 students, teachers and parents who are the stake holders of student information service on NEIS regarding whether they are for it, if so how to do it. The result indicated that students, parents and teachers are all positive in that order. It is unexpected that teachers who need to input and are responsible for the accuracy and reliability for student information are also for it. Although the human right law suggests all students have the right to direct access to their own information, the order of operation can be from secondary school level if the operation can not be done all at the same time. The range of information provided through this service is in principle the same as what parents can access except the counseling information.

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Market Reaction for KRX SRI Index Revision (KRX SRI Index 구성종목 신규편입 시점의 주가반응에 관한 연구)

  • Hwang, Seong-Jun;Kim, Dong-Il
    • Journal of the Korea Academia-Industrial cooperation Society
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    • v.17 no.3
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    • pp.79-85
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    • 2016
  • In today's fast-paced capitalistic society, a primary concern is whether to invest capital in any way to increase profits. In recent years, many companies have emphasized ethics and practiced corporate social responsibility activities. These activities are not only required to have at the end of the company. Bringing the ultimate goal of profit maximization is one way to contribute to the development of society and the economy. Investors are aware of corporate social responsibility activities and have begun to reflect this in their investments. We studied the behavior of a newly incorporated company's stock price on the KRX SRI Index using a scale that indicates the level of social responsibility for companies in the domestic stock market. Socially responsible investment involves an excellent company that looks out and looks for additional effects on the stock price of imports and improves the reliability of investors through an event study. The results show that the company we examined has a positive impact on the market. This study confirms the hypothesis that additional stock market reaction will occur when superior companies are newly incorporated in the KRX SRI Index and gain investors' trust. The results demonstrate that becoming a newly incorporated corporation in the KRX SRI Index is positive information to investors.

Flight Test of Helicopter Landing System Using Real-time DGPS (실시간 DGPS를 이용한 헬리콥터 착륙 시스템 개발)

  • Park, Sung-Min;Kim, Jung-Han;Whang, Duk-Ho;Jang, Jae-Gyu;Kee, Chang-Don;Park, Hyoung-Taek;Park, Hong-Man;Lee, Chang-Hyo
    • Journal of Advanced Navigation Technology
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    • v.3 no.2
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    • pp.108-119
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    • 1999
  • In recent, there has been remarkable progress in the field of GPS applications. In a few years, an appreciable number of aircraft will adopt GPS as a landing guidance system because GPS is more economic, more reliable and more accurate than any other aviation systems. In this respect, we have performed several helicopter landing flight tests based on the real-time DGPS system made in SNUGL (Seoul National University GPS Laboratory). From the experimental results, we found several problems Which should be fixed to adopt DGPS as a aircraft landing guidance system. In this paper, we will introduce the problems found in tests and also suggest modifications to solve the problems. Our modifications can be classified into three parts. The first is about the attitude determination with single GPS antenna. The second deals with the cockpit display module. The display was devised to integrate the Instrument Landing System(ILS) with tunnel-the-sky using virtual reality. With the display, pilot can achieve more safe landings. The last part is the digital map. We inserted digital map into our system and put direction indicator on the map using position information from GPS. It is very useful for pilot to find airports even in bad weather. Using the newly designed DGPS landing system, we conducted flight test at Kimhae International Airport, Pusan, Korea. It was successful! Our system can also satisfy Category-I criterion for aircraft landing approach and determine attitude angle with a high level of reliability. It is supported by video materials.

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A Design and Implementation of Bulk Data Transmission Tool based on UDT (UDT 기반의 대용량 데이터 전송도구 설계 및 구현)

  • Park, Jong-Seon;Kim, Seung-Hae;Hwang, Gun-Joon;Cho, Gi-Hwan
    • Journal of the Institute of Electronics Engineers of Korea TC
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    • v.49 no.2
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    • pp.23-31
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    • 2012
  • With advance of high bandwidth network infrastructure, the requirement is dramatically increasing to cooperate between the users who are far from each other and make use of bulk data. However, as the prominent data transmission protocol, it is well known that TCP suffers some degrees of inefficiency for bulk data transmission when RTT is relatively big. So, some works are on going to suggest a new transmission method to utilize the bandwidth in effective. UDT(UDP-based Data Transfer protocol) is one of these. It is a UDP based application level protocol which can guarantee reliability and stability. much like as TCP. In this paper, we present a design and implementation of UDT based bulk data transmission tool by applying parallel and compressive techniques. The implementation result is examined to measured its performance improvement on a real test-bed, and then compared with existing bulk data transmission tools. Experimental results show that proposed tool is more stable and shows greater performance than that of native UDT. Especially, the performances show 244% improvement in RTT 400ms without losses and 229% in RTT 250ms with 0.005% losses respectively.

Efficiently Development Plan from the User's Need Analysis of the Army Tactical C4I(ATCIS) System (지상전술 C4I(ATCIS)체계 운용자 요구분석을 통한 효율적 발전 방안)

  • Park, Chang-Woon;Yang, Hae-Sool
    • The Journal of the Korea Contents Association
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    • v.8 no.5
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    • pp.246-259
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    • 2008
  • This study was to minimize the trial and error in the primary step of the C4I system(ATCIS) of the each army corps on the front line, and test the economy and efficiency was tested by reviewing related papers and the system characteristics of other countries. The relationship was researched by analyzing the collected survey data and survey data related to the user's requirement level such as the army standards, that is, commonality, timeliness, simplification, automaticity, field availability and viability, multi-stage security and interoperability, unification. The result showed that the C4I system was efficiently operated through the system reliability for the specification of the system and operation manual, maneuverability and security, adaptability of the war field and system support and management, and good education and training about system operation, and less system maintenance and supplementary element. As a result, the development plan confirmed that the continuous operator education and the construction of the maintenance, and the upgrade digitalization(C4ISR+D) with the korean characteristics based on IT of network systems, and system development of the measurement model of the operator performance must be continuously supplemented in the near future.

The Mediating Effect of Attribution Style on Relationship between Student's Sense of Community and School Adjustment in Middle School on Inclusive Physical Education (통합체육수업에 참여하는 비장애학생의 공동체의식과 학교생활적응 관계에서 귀인성향의 매개효과)

  • Park, Jin-Woo;Hwang, Soon-Young
    • 한국체육학회지인문사회과학편
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    • v.56 no.6
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    • pp.607-618
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    • 2017
  • The purpose of the study was to examine the mediating effect of attribution style on relationship between students' community sense and school adjustment in middle school on inclusive physical education. For this, the study conducted survey targeting 380 students without disabilities from B city who were participating in middle school on inclusive physical education among them were surveyed through convenience sampling were used for final data processing. To analyze the data to verify the hypotheses, SPSS 21.0 program population sociological characteristics were used for frequency analysis, confirmatory factor analysis was used to test the validity of the collected data, and correlation analysis, and Cronbachs'${\alpha}$ value was used for reliability test. And AMOS 20.0 program were utilized to conduct mediating analysis and the statistically significant level (p) is fixed as .05. The results are the following. First, there was a statistically significant correlation between non-disabled student's sense of community, school adjustment and internal attribution. Second, internal attribution partially mediated the relationship between the sense of community of non-disabled students and school adjustment. However external attribution did not mediate the relationship between sense of community of non-disabled students and school adjustment.

Development of a Design Seismic Wave Time History Generation Technique Corresponding to the Recorded Seismic Wave-Based Design Response Spectrum (계측 지진파 기반 설계응답스펙트럼에 상응하는 설계 지진파 시간이력 생성 기법 개발)

  • Oh, Hyun Ju;Park, Hyung Choon
    • KSCE Journal of Civil and Environmental Engineering Research
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    • v.41 no.6
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    • pp.687-695
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    • 2021
  • With the recent occurrence of large-scale earthquakes in Korea, the importance of seismic design has greatly increased. Seismic design standards stipulate that dynamic time history analysis be performed for important or special structures. In the seismic analysis and design of such structures, determining a rational design input seismic wave is a very important factor in ensuring the reliability of the analysis and design. In the seismic design standards, rational design seismic waves must reflect the characteristics of the area (fault) and satisfy the design response spectrum for each seismic performance level. This requirement can be partially satisfied by modifying the actual seismic wave measured in the area (fault) according to the design response spectrum. In this study, a method of correcting and generating seismic wave time histories according to the design response spectrum based on actual measured seismic waves using the harmonic wavelet transform was proposed. To examine the applicability of the proposed technique, the technique was applied to earthquakes of magnitude 5.8 and 5.4, respectively, that occurred in Gyeongju (2016) and Pohang (2017), and the seismic wave time histories corresponding to the design response spectrum were modified and generated.

Development of Park Performance Assessment Tool (PPAT) for the Qualitative Improvement of Urban Neighborhood Parks (근린공원 서비스의 질적 개선을 위한 공원성능평가도구 개발)

  • Kim, Yong-Gook;Kim, Young-Hyeon;Yoo, Ye-Seul
    • Journal of the Korean Institute of Landscape Architecture
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    • v.51 no.2
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    • pp.120-130
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    • 2023
  • This study aims to develop a Park Performance Assessment Tool (PPAT) to qualitatively evaluate the level of urban neighborhood park services. The Park Performance Assessment Tool (PPAT) development process is as follows. First, a pool of evaluation items was formed by analyzing domestic and foreign cases related to the Park Performance Evaluation Tool (PPAT). Second, evaluation items were refined considering domestic park conditions through expert advisory meetings and pilot evaluations. Third, the reliability of the Park Performance Evaluation Tool (PPAT) was verified through pilot evaluations. Fourth, weights for each evaluation item were derived through an expert survey and AHP analysis. Fifth, a Park Performance Evaluation Tool (PPAT) evaluation table and evaluation guidelines were prepared. The developed Park Performance Assessment Tool (PPAT) was applied to 22 neighborhood parks in Bupyeong-gu, Incheon to evaluate the quality of the physical environment. As a result of the evaluation, several urban neighborhood parks that need improved park services were identified. The Park Performance Evaluation Tool (PPAT) is expected to be used to establish a basic plan for parks and green spaces, select priority and project promotion methods for park maintenance projects, and certify excellent parks