• East Asian mathematical journal
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• 제25권3호
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• pp.321-341
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• 2009

The purpose of this study was to examine the effect of the manipulative materials in the Australian Maths 300 program by applying it to Korean Elementary Mathematics Education - based on parts of 'Probability and Statistics', and 'Symbol and Expression'. In order to this purpose, we select appropriate Maths 300's manipulate materials that could be used to obtain learning objectives within class time for each part, four lessons with the materials were taught at to third, fourth, and fifth grade students of elementary School. The effect of the teaching was analyzed by videotape and student opinion. The results of this study are the following: First, the manipulative tools were almost entirely lacking for the 'Probability and Statistics' section without a 'number of cases' unit. The tools presented in the 'Symbol and Expression' section were helpful in the games that were used for checking preceding learning. Second, the results of using the Math 300 manipulative materials in class showed that the students were eager to be involved in the activities using those materials and to find their own solutions in problem-solving questions that were suited to them; these led to them making their own questions. In response to questioning about the use of the manipulative materials, the students stated that it was easy and fun for them to use the manipulative materials, to solve the problems for themselves, and that they would like to continue practicing the activities in the future. Finally, Studies on the presentation of a variety of manipulative materials including those in this study that can used in problem-solving learning and other learning fields, and the methodology for the use of manipulative materials can be enhanced through further studies.

• 한국응용과학기술학회지
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• 제37권4호
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• pp.936-943
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• 2020

국내 스크린골프의 서비스품질이 고객만족 및 행동의도에 미치는 영향력을 이론적으로 규명하여 서비스품질에 대한 중요성을 강조하는 한편, 서비스품질과 행동의도 간에 고객만족이 어떠한 매개적 역할을 하는지를 확인하고자 하였다. 따라서 스크린골프 경험이 있는 20세 이상 성인을 대상으로 설문조사를 수행하였으며, 총 485명의 자료를 최종 분석에 사용하였다. 자료처리는 SPSS statistics 20 통계분석 프로그램을 이용하여 조사대상자 특성을 파악하기 위한 빈도분석, 조사도구의 타당도 및 신뢰도 검증을 위한 탐색적 요인분석, 신뢰도 분석, 요인 간의 관계 및 영향력을 알아보기 위한 상관분석, 단순회귀와 다중회귀 분석을 실시하였다. 분석결과 첫째, 스크린골프 서비스품질은 시설, 서비스, 인적 자원, 가격 순으로 고객만족 요인에 통계적으로 유의한 영향이 있는 것으로 나타났다. 둘째, 스크린골프 고객만족은 행동의도 요인에 통계적으로 유의한 영향이 있는 것으로 나타났다. 셋째, 스크린골프 서비스품질은 시설, 가격, 서비스, 인적 자원 순으로 행동의도 요인에 통계적으로 유의한 영향이 있는 것으로 나타났다.

• 한국항행학회논문지
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• 제15권6호
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• pp.1082-1097
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• 2011

본 연구는 서비스 교육이 항공서비스학과 학생들의 자기효능감과 서비스 지향성에 미치는 영향에 대해 연구하였으며 이를 통해 항공서비스 전공 학생들에 대한 효과적이고 실무중심적인 서비스교육을 실시하는데 그 목적이 있다. 선행연구를 바탕으로 서비스 교육은 크게 서비스 능력 교육과 서비스 성향 교육으로 구분하였으며 자기효능감은 인지적, 정서적, 사회적 자기 효능감의 하위요인으로 구분하였다. 서비스 지향성은 결과 지향과 과정 지향의 두 가지 요인으로 연구하였다. 실증분석 결과 서비스 교육은 자기효능감에 긍정적인 영향을 미치며 특히 인지적 자기효능감에 큰 영향을 미치는 것으로 조사되었다. 그리고 서비스성향 교육은 서비스 지향성에 긍정적인 영향을 미치는 것으로 밝혀졌다. 그러나 자기효능감은 서비스 지향성에 영향을 미치지 못하는 것으로 나타나 자기효능감과 서비스 지향성은 유의한 관계를 가지지 않는 것으로 판명되었다.

• 한국의류학회지
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• 제19권2호
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• pp.216-229
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• 1995

The main purpose of this study was to develop and validate a scale for measuring situation\ulcornerspecific anxiety that consumers experience while shopping for ready\ulcornerto-wear clothes. A 92 five-point items, Likert type scale, entitled the RMCCAS(The Ready\ulcornerMade Clothes Consumer Anxiety Scale) was developed and administered to 354 female college students. Data collected were subjected to a series of statistical analysis: item analysis, factor analysis, estimation of validity and reliability and descriptive statistics. A second-order factor analysis conducted to 15 factors obtained from a first-order factor analysis yieled three factors; Fitness of Fashion and Design to indiviuality and time(scale 1), Reliance on Price and Quality including Suitableness of Material and Color(scale 2), and Practicality in Dressing and Maintaining(scale 3). Obtained concurrent validity of the RMCCAS subscales with the trait anxiety were .056(subscale I), .082(subscale 2), .033(subscale 3), and .050(total scale). that with state anxiety were .421(subscale I), .217(subscale 2), .198 (subscale 3), and .407(total scale); that with the CP AS were. 721(subscale 1), .789(subscale 2), .570(subscale 3), and .841(total scale). All of the obtained coefficients of Cronbach alpha, split\ulcornerhalf reliability, and test-retested reliability over an interval of. 8 weeks were above .80. Besides, descriptive data from the RMCCAS satisfactorily supported conditions required for the normal distribution of obtained scores. In conclusion, a close exa:nination of validity, reliability, and descriptive statistics of the RMCCAS indicates that three subscales including the scale have a resonable scaling-prop\ulcornererties. Further research is suggested for obtaining norms for more representative target samples and for tapping the possibility of using subsea Ie 2 as a unidimensional measure .

• Journal of KIEE
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• 제11권1호
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• pp.32-40
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• 2001

This paper presents the detailed statistics on radiation field signatures associated with multiple-intracloud lightning discharges. A transient signal recording system was used to measure the electric and magnetic fields produced by lightning flashes. The measurements were made in th summers of 1995 through 1999, and the location of the observation station was in Inchon on the coast of the Yellow Sea in Korea(37$^{\circ}$25'N, 126$^{\circ}$ 39'E). Most of lightning flashes typically contains between two and five strokes. The individual intracloud stork radiation fields were the bipolar pulse. On the average, the ratio of the peak of the second stroke to the first stroke peak was 75.1$\pm$40.1% for the negative, and a fraction of the subsequent stroke peaks were higher than the first stroke peak. The greater the number of the subsequent stroke order, less time separations between strokes were produced. The mean of the depth of the dip was 81.2$\pm$27.9% for the positive polarity and 75.9$\pm$24.4% for the negative. The depth of the dip increased for the positive bipolar pulses and decreased for the negative as the number of the stroke order increased.

• 벤처창업연구
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• 제8권1호
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• pp.183-191
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• 2013

본 연구는 현실요법 집단상담 프로그램이 초등학생의 리더십 생활기술, 사회성, 학급 응집력에 어떠한 효과를 미치는지를 알아보기 위하여 경기도 S지역의 K초등학교 학생을 대상으로 연구에 참가를 희망하는 34명을 모집하여 실험집단 17명, 통제집단 17명으로 무선 배정하였다. 실험집단과 통제집단 간의 사전 검사 검증과 사후검사 검증에 대해서는 비모수적 통계인 Mann-Whitney U Test와 중다선형 회기분석을 실시하였다. 연구결과를 바탕으로 결론을 내리면 다음과 같다. 첫째, 현실요법 집단상담 프로그램을 경험한 실험집단은 통제집단보다 리더십 생활기술에서 통계적으로 유의미한 효과가 있었다. 둘째, 현실요법 집단상담 프로그램을 경험한 실험집단은 통제집단보다 사회성에서 통계적으로 유의미한 효과가 있었다. 셋째, 현실요법 집단상담 프로그램을 경험한 실험집단은 통제집단보다 학급 응집력에서 통계적으로 유의미한 효과가 있었다. 따라서 현실요법 집단상담 프로그램이 초등학생의 리더십 생활기술과 사회성, 학급 응집력에 긍정적인 방향으로 영향을 미친다는 사실을 알 수 있다.

• 유통과학연구
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• 제12권7호
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• pp.23-35
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• 2014

Purpose - This study aims to explore the effects of social responsibility activities and business ethics practices on corporate trust and loyalty in the context of a large retail distribution business. Research design, data, and methodology - The data collected was analyzed using PASW Statistics 18.0. In order to verify the demographic characteristics, frequency analysis was conducted on the data. Results - The results of the study were as follows. First, social responsibility activities had a significant effect on corporate trust. Second, both corporate social responsibility activities and business ethics practices had significant effects on loyalty. Third, corporate trust had a significant effect on loyalty. Fourth, corporate social responsibility activities and consumer protection activities had a partial mediation effect, while environmental protection activities and social contribution activities had complete mediation effects. Conclusions - This study clarified and explained the factors of corporate social responsibility activities and business ethics practices that customers value, and analyzed the influence of these factors on corporate trust and loyalty.

• 수산해양교육연구
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• 제29권3호
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• pp.899-908
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• 2017

The purpose of this study is to identify challenges related to social, economic and environmental change for fishing villages and suggest the developmental direction of fishing village to actively respond to new changes. This study mainly focuses on fishing village fraternities. Its current problems are summarized as follows: shortage of labor, population aging, entry barrier against newcomers, insufficient guidance and supervision functions, lack of funds of new projects and inadequate statistics and data. The fishing village community in the modern meaning of the term can be understood as an economic and flexible social-cultural community based on openness, cooperation instead of exclusiveness and closeness, which aligns fisheries with local industries. Thus, in order for the fishing village community to improve, the followings areas required. First, strengthening capacity of the fishing village community. Second, establishing the database system and the third, reorganizing the fishing village community into a sea village community.

• 대한전자공학회:학술대회논문집
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• 대한전자공학회 2001년도 제14회 신호처리 합동 학술대회 논문집
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• pp.869-872
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• 2001

Blind identification and equalization of communication channel is important because it does not need training sequence, nor does it require a priori channel information. So, we can increase the bandwidth efficiency. The linear prediction error method is perhaps the most attractive in practice due to the insensitive to blind channel estimator and equalizer length mismatch as well as for its simple adaptive algorithms. In this paper, we propose method for fractionally spaced blind equalizer with arbitrary delay using one-step forward prediction error filter from second-order statistics of the received signals for SIMO channel. Our algorithm utilizes the forward prediction error as training sequences for data estimation and desired signal for channel estimation.

• 대한전자공학회:학술대회논문집
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• 대한전자공학회 2000년도 제13회 신호처리 합동 학술대회 논문집
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• pp.229-232
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• 2000

Orthogonal frequency division multiplexing(OFDM) has meanwhile become part of several telecommunicati ons standards, such as satellite and terrestrial digital audio broadcasting(DAB), digital terrestrial TV broad casting(DVB), asymmetric digital subscriber line(ADSL) for high-bit-rate digital subscriber services on twisted-pair channels, and broadband indoor wireless systems. In his paper, we show that OFDM signals contain sufficient structure to accomplish blind channel estimation using second order statistics only. This method doesn't require redundancy as cp in transmitter. And the result is compared with PSAM channel estimation as least square, linear minimum mean square, singular value decomposition.