• 아태비즈니스연구
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• 제13권3호
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• pp.311-328
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• 2022

Purpose - The purpose of this study was to examine the relationship between firm's non financial performance and its shareholder return by analyzing PCA while focusing on the classifying all the variables into three categories such as financial, characteristics, and non financial factors of the firms. Design/methodology/approach - By exploring the pattern of self tender from the 801 firms in KOSPI while focusing on the objective of stock disposal, this paper analyzes the change of shareholder return of the firm. Findings - First, the higher major ownership, the lower self tender gets, whereby the higher ownership by foreigners, the ratio of self tender is higher. Secondly, cash dividend has not significant impact on the disposal of self stock, and the high ratio of ownership by foreigners leads to the high probability of retirement rather than the general disposal. In contrast, the major ownership has a negative impact on the general disposal as well as retirement. Thirdly, the score of non financial factors such as Environment(E), Social responsibility(S), and Governance(G) shows the high value in case of the firms with self tender. More specifically, the firms with retirement has the highest value of ESG while it has the lowest value in case of the firms with general disposal. Research implications or Originality - The retirement which means the active shareholder return is strongly affected by the non financial factors. Specifically, the probability of retirement increases in case of the firms with retirement, and even such a tendency is found to the case of the firms with general disposal.

• Preventive Nutrition and Food Science
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• 제21권3호
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• pp.263-270
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• 2016

This study investigated the phenolic, flavonoid, and vitamin constituents in the main root, root hair, and leaf of ginseng. The total individual phenolic and flavonoid contents were the highest in the leaf, followed by the main root and root hair. Ferulic acid and m-coumaric acid were found to be the major phenolics in the main root and root hair, while p-coumaric acid and m-coumaric acid were the major phenolics in the leaf. Catechin was the major flavonoid component in the main root and root hair, while catechin and kaempferol were the major flavonoid components in the leaf. Pantothenic acid was detected in the highest quantity in the non-leaf parts of ginseng, followed by thiamine and cobalamin. Linolenic acid and menadione were the major components in all parts of ginseng.

• 한국치위생학회지
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• 제3권2호
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• pp.169-182
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• 2003

The present study attempts to investigate the knowledge, belief, attitude and behavior of healthcare major students and non-healthcare counterparts concerning their oral hygiene. The purpose is to provide basic data for positive oral health activities to the students with non-healthcare major, who tend to have insufficient information on oral hygiene. A survey was conducted to 400 students in K college in Incheon from May 1-30, 2003. A total of 384 surveys were analyzed using the SPSS program Version 10.0. The result is as follows: 1. There was a statistically significant difference in the knowledge on oral hygiene between the healthcare(M=3.08) and non-healthcare(M=2.78) students(pE0.05). 2. As for the beliefs and attitudes toward oral health behaviors, 56.9% of the healthcare students and 60.6% of non-health care counterparts responded "moderate" to the question asking if they liked tooth-brushing. The reason they liked tooth-brushing were cleanliness(60.3% of healthcare and 71.9% of non-healthcare students). They didn't like brushing their teeth because they felt it was a nuisance(60.6% of healthcare and 54.5% of non-healthcare students). 90.6% of healthcare students and 90.1% of their non-healthcare counterparts said they wanted to keep their oral health intact. Most of the subjects seemed to acquire information on oral hygiene through mass media(62.2% of healthcare and 55.3% of non-healthcare students). The persons who give them oral health information are their friends or neighbors(26.8% of healthcare and 22.8% of non-healthcare students), and dental hygienists were the last in the list of the sources of information(3.4% of healthcare and 2.5% of non-healthcare students). 3. Their oral health behaviors were also considered, 64.4% of the healthcare students and 53.7% of the non-healthcare counterparts brush their teeth once or twice a day, 51.4% of the former brush their teeth for 2 minutes and 44.8% of the latter for 3 minutes. Some of them use oral health measures other than tooth-brushing(13.3% of healthcare and 14.3% of non-healthcare students). Not many of them used oral health products(6.6% of healthcare and 5.9% of non-healthcare), and the difference was statistically significant(pE0.05). The largest number of healthcare students brush their teeth right before going to bed(29.9%), while their counterparts do it after breakfast(25.8%)

• 디지털콘텐츠학회 논문지
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• 제8권3호
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• pp.329-339
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• 2007

본 논문은 연속적으로 입력되는 동영상에서 시공간 정보를 이용하여 다양한 조명환경에서도 실시간 적용이 가능한 얼굴영역 검출기법을 제안한다. 제안한 알고리즘은 연속된 두개의 연속 영상에서 에지 차영상을 구하고 연속적으로 입력되는 영상과의 차분 누적영상을 통해 초기 얼굴영역을 검출한다. 초기 얼굴영역으로부터 외부 조명의 영향을 없애기 위해, 검출된 초기 얼굴영역의 수평 프로파일을 이용하여 수직 방향으로 객체영역을 이분하며, 각각의 객체영역에 관해 주색상 밝기를 구한다. 배경과 잡음 성분을 제거한 후, 분할된 얼굴영역을 통합한 주색상 밝기 분포를 이용하여 타원으로 근사화 함으로써 정확한 얼굴의 기울기와 영역을 실시간으로 계산한다. 제안된 방법은 다양한 조명조건에서 얻어진 동영상을 이용하여 실험되었으며 얼굴의 좌 우 기울기가 $30^{\circ}$이하에서 우수한 얼굴영역 검출 성능을 보였다.

• 한국식품조리과학회지
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• 제18권2호
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• pp.247-261
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• 2002

This study was designed to identify the purchasing practice on the bakery products by the female university students in Seoul and Kyunggi area. Total 262 questionnaires were used for the analysis among 285 responses. The results showed that 50.76% of the respondents bought the bakery products 1∼3 times a month mainly for supper or snacks. The most favored bakery products were bread, danguaja bbang, cake, pie and jori bbang, and there was a signigicant difference in the preference of bakery products by the type of dwelling (p<0.001). Students with non-food science major significantly preferred bakeries as light meals (p＜0.01). Students with food science major liked bread, jori bbang, cake and pie, but the non-food science majors liked bread, sweat red-bean bread and sandwich (p＜0.05). Depending upon the housing status and the major of the respondents, there was a signifcant difference in the purchase factor like nutrition, taste, size and sanitation of the store (p<0.05), while the purchasing frequency was not affected by those factors (p＜0.05). As to the question if there is a room for improvement, different housing status influenced significantly the respondents in citing the factors like business hours and service, and the shape of product and service(p＜0.05).

• 천문학회보
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• 제41권1호
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• pp.81.2-81.2
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• 2016

Many signals in the nature have power-law behaviors, namely they are "scale-free". The method of detrended fluctuation analysis (DFA), as one of the popular methods (e.g., Rescaled range analysis and Spectral analysis) for determining scale-free nature of time series, has a very important advantage that the DFA can be applied to both stationary and non-stationary signals. The analysis of time series using the DFA has been broadly used in physiology, finance, hydrology, meteorology, geology, and so on. We performed the DFA of 16 Spaceweather HMI Active Region Patch (SHARP) parameters for 38 HMI Active Region Patches (HARPs) obtained by Solar Dynamics Observatory (SDO) from May 2010 to June 2014. The main results from this study are as follows. (1) The most of the time series data are non-stationary. (2) The DFA scaling exponents of "mean vertical current density" for 38 HARPs have a negative correlation coefficient (-0.41) with flare index. (3) The DFA scaling exponents of parameters such as "Sum of the absolute value of net currents per polarity", "Absolute value of the net current helicity", and "Mean photospheric excess magnetic energy density" for the most active HARPs having more than 10 major flares, have positive correlation coefficients (0.64, 0.59, and 0.53, respectively) with the ratio of "the number of CMEs associated with major flares" to "the number of major flares". Physical interpretations on our results will be discussed.

• 농업과학연구
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• 제24권2호
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• pp.138-144
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• 1997

Korean agricultural and rural economics has been gotten more difficult through the introduction of economics system under the control of IMF before problems from open market system under WTO get to be settled. Export should be promoted to get the advantage of open market system and to get over today's economic crisis from shortage of foreign currency. Fortunately, Korea adjoins Japan that is largest importing country of agricultural products in a world, therefore Korean Agricultural products has advantage in export to Japan through open market system. Puyo tomato, specialized agricultural products in Chungman province, has been exported 42.2M/T to Japan from 1994 year to 1996 year. But such exported amount was so small that is less than a 1% of total tomato product in Puyo area. Reasons why export volume to Japan was so small were non standard commodities, non performance of export contract, unfavorable price condition, etc.. But it was major reason that missed optimal exporting period. Therefore this study is aimed at finding optimal period exporting Puyo mini tomato to Japan. According to result of analysis based on monthly price and carried quality data of major tomato market between Korea and Japan, it has more comparative advantage that we export tomato during Period of Dec-Feb. rather than March-May which is currently major exporting period.

• 한국컴퓨터정보학회:학술대회논문집
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• 한국컴퓨터정보학회 2021년도 제63차 동계학술대회논문집 29권1호
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• pp.129-130
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• 2021

본 연구의 목적은 학생의 주도적 학습을 돕는 하브루타 학습방법을 대학의 비대면 실시간 온라인 수업에서 활용할 수 있는 하브루타 학습모델 개발과 그 적용 가능성을 탐색하는 것이다. 이를 위해 온라인 학습환경에서 하브루타 학습법 적용사례에 대한 선행연구 고찰과 관련 이론들을 분석하고 하브루타 수업운영 경험자 2인의 인터뷰를 통해 비대면 실시간 온라인 수업 상황에서 적용 가능한 학습 모델안을 고안할 것이다. 이를 하브루타 수업 운영 경험이 풍부한 6인의 전문가를 대상으로 수업 모델안의 적절성과 적용가능성에 대한 평가를 실시하여 비대면 실시간 온라인 수업을 위한 하브루타 학습모델을 개발하고자 한다. 이 연구를 통해 비대면으로 수업을 해야 하는 상황에서도 학습자의 주도적 학습을 가능하게 함으로써 학습효과를 높여 미래 사회에 필요한 역량을 개발하는 데 기여할 수 있을 것이라고 기대한다.

• Environmental Sciences Bulletin of The Korean Environmental Sciences Society
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• 제3권1호
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• pp.1-9
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• 1999

Microzooplankton was analysed between $40^{\circ}s$ to $53^{\circ}s$S and $140^{\circ}E$ to $146^{\circ}E$ of the Sourthern Ocean from November 18 to November 30, 1995 to investigate the influence of frontal systems. The density and carbon biomass of microzooplankton were clearly associated with frontal systems, and at least 4 different communities were identified. The Subtropical Convergence Zone and Antarctic Polar Front Zone were the major biological boundaries recognized in the Southern Ocean. Ciliates predominated other microzooplankton in density and carbon biomass. Non-tintinnid ciliates occupied more than 70% of the total microzooplankton, and Laboea spp. was the major component of the non-tintinnid ciliates. The density and carbon biomass showed a decreasing tendency toward south from $40^{\circ}S$ to the $53^{\circ}S$ transect. The ecological importance of a frontal zone is confirmed by the microzooplanktonic data obtained from this study.

• 가정과삶의질연구
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• 제24권5호
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• pp.37-51
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• 2006

The purpose of this study was to investigate the effects of self-esteem and gender role attitudes on youth's psychological well-being. The subjects of this research were 408 young men and women. All respondents answered by self-report questionnaire. The data were analyzed with descriptive statistics, t-tests, Pearson's correlations, and multiple regressions. The major results of this study were as follows: (a) Self-esteem and psychological well-being of young men and women were high. (b) There were changes toward the non-traditional direction in gender role attitudes of the youth. The young women exhibited more non-traditional gender role attitudes than the young men. (c) Self-esteem and family socioeconomic status showed positive influences on the psychological well-being of youth. However, gender role attitudes were not associated with youth psychological well-being.