• 한국항해항만학회지
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• 제44권5호
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• pp.400-406
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• 2020

In this study, we first measured the malmquist productivity index by DEA among the Korean public firms. Second, there are 12 public corporations whose productivity (MPI) has decreased compared to 2014. This is mainly because of a decrease in productivity, as well as a decrease in the technical efficiency change index (TECI), impacted by the internal environment, and the increase in productivity because of an increase in the technology change index (TCI) impacted by the external environment. Finally, the analysis of the impact on the management assessment scores showed that the productivity (MPI), scale efficiency (CRS), size of sales, operating profitability, and total capital investment efficiency are significantly related (+), except for the asset turnover, which is a static financial ratio. Meanwhile, the management evaluation scores between the high-productivity public corporations and low-performing public corporations were significantly discriminating. Thus, it is confirmed that the nation's state-run companies must manage their MPIs in a time series to score high in management evaluation.

• 복식문화연구
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• 제11권3호
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• pp.352-366
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• 2003

The purposes of this study were 1) to examine the conceptual structure information sources, antecedent states, and purchasing situation related to the apparel buying behavior, 2) to compare the differences between high addictive buying consumers and low addictive buying consumers in related variables, and 3) to find out the discriminating variable of apparel buying behaviors on the degree of addictive buying tendencies of apparel in department store. The questionnaire was developed based on the results of pretest and previous studies, and completed by 726 fcmale consumers living in Busan, Korea. 1) Factor analysis showed that information sources related to apparel buying behaviors consisted of the information of store and observation, and antecedent states did consumer's mood and availability of cash/cards. Also, purchasing situation in apparel store composed of four factors, such as Atmosphere, Price/quality, Store policy/salesperson, and Influence of others. 2) By t-test, there were significant differences between high addictive buying consumers and low addictive buying consumers in information sources, antecedent states, and purchasing situations. 3) The apparel buying behavior of high addictive buying consumers were influenced by the information of observation, and that of low addictive buying consumers were did by the atmosphere of apparel store.

• Journal of Ecology and Environment
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• 제34권3호
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• pp.287-293
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• 2011

Analysing companion species from unrelated taxa concentrated so far mainly on identifying biosurrogacy in terms of conservation biology. No study has investigated companion bird and plant species to predict breeding and migrant habitats of a bird genus. In this study we recorded and analysed companion bird and plant species of the breeding bird Cyprus Wheatear Oenanthe cypriaca and four migranting Oenanthe species on Cyprus. We found characteristic companion species in Cyprus Wheatear's, Wheatear migrant's and in control habitats where no Wheatears were present. We show that plant and bird companion species can be used as discriminating factors to predict breeding and migrant habitats of the genus Oenanthe on Cyprus. Furthermore, habitat preferences of Cyprus Wheatear's companion species indicate bushy and vegetation rich habitats avoiding woodland on the one hand and managed farmland on the other hand. In comparison, migrant Wheatear and control habitats were characterised by companion species pointing to a high openness. These results support former habitat descriptions of Cyprus Wheatear and migrant Wheatears. In more general, this study shows that companion species from unrelated taxa can be used to predict breeding and migrant habitats of a bird genus.

• 동의생리병리학회지
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• 제26권6호
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• pp.964-969
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• 2012

This study aimed to evaluate the relationship between the results of blood test and Sasang constitution. We performed blood test of 2,387 university students in Health examination. Sasang constitution was diagnosed by using the Questionnaire of Sasang Constitution Class II(QSCC II). All the data were analysed statistically by descriptive statistics, ANOVA and logistic regression analysis. The Taeeumin group showed significantly higher AST, ALT, GGT, LDH, CPK, creatinine, uric acid, total cholesterol, TG, and LDL levels than other groups, while having a lower HDL level. According to logistic regression analysis, Hb, RBC, uric acid, creatinine were effective common factors for classifying each constitution groups. In the results of this study, there were significant differences in the results of blood test between the three constitutions. But the blood test was insufficient as an objective indicator for discriminating Sasang constitutions.

• 가정과삶의질연구
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• 제6권1호
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• pp.71-93
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• 1988

The purpose of this study is to investigate the realities of the husband's violence, to develop a scale to identify women who are victims of wife abuse and to provide evidence of the scale's validity. The Instrument entitled the Wife Abuse Inventory (WAI) and conflict Tactics Scale(CTS), are administered to 511 women who lives in Taegu area. The main results are as follows; 1) The CTS analysis shows the 42.5% of the sampled house wives are suffered minor violence and 9/0% are suffered violence form husband. 2) The WAI is factor analyzed to examine factor components within the scale. An examination of the rotated solutions suggested that WAI is composed 10 factors. These factor is labeled men's conception of supremency and aggression propensity, communication, economic difficulties and frustration, social activities, jealousy, children rearing, intimacy, family relationships in laws , affection, difference of culture. 3) an analysis of variance show the group mean score of the violence group and the mean score of the non-violence group on the WAI to be significantly different(P<.001). A discriminant analysis produce a significant discriminant function (P<.001). Using WAI scores as the discriminating variable, 81,15% of the violence and non-violence subjects are classified into their appropriate groups. This finding indicates that the WAI is a reliable device for screening violence and nonviolence group.

• 한국지능시스템학회논문지
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• 제24권6호
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• pp.603-608
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• 2014

해상교통환경에서 선박간 근접사고(Near-miss)는 양 선박이 충돌 위험코스로 서로 근접하여 충돌에 임박한 상황으로 실제 충돌은 발생되지 않은 사고를 말한다. 본 연구에서는 통항 선박들간 근접사고 산출을 위해 선박 범퍼 영역모델을 활용한 근접사고 판별식과 선박 위치 클러스터링을 통해 해역의 근접사고 산출 모듈을 제안하고자 한다. 제안된 근접사고 산출 모듈을 완도해역 통항선박 항적데이터에 적용하여 선종, 항행속력 및 조우방향 등 선박 항해 위험 요인을 평가하고자 한다.

• 한국수학교육학회지시리즈D:수학교육연구
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• 제7권3호
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• pp.163-189
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• 2003

The purpose of this study is to develop a test, which can be used in creative problem solving ability in mathematics of the mathematically gifted and the regular students. This test tool is composed of three categories; fluency (number of responses), flexibility (number of different kinds of responses), and originality (degree of uniqueness of responses) which are the factors of the creativity. After applying to 462 middle school students, this test was analyzed into item analysis. As a results of item analysis, it turned out to be meaningful (reliability: 0.80, validity: item 1(1.05), item 2(1.10), item 3(0.85), item 4(0.90), item 5(1.08), item difficulty: item 1(-0.22), item 2(-0.41), item 3(0.23), item 4(0.40), item 5(-0.01), item discriminating power: item 1(0.73), item 2(0.73), item 3(0.67), item 4(0.51), item 5(0.56), over the level of a standard basis. This means that the test tool was useful in the test process of creative problem solving ability in mathematics

• Advances in nano research
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• 제12권5호
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• pp.489-499
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• 2022

Nanofluids have recently triggered a substantial scientific interest as cooling media. However, their stability is challenging for successful engagement in industrial applications. Different factors, including temperature, nanoparticles and base fluids characteristics, pH, ultrasonic power and frequency, agitation time, and surfactant type and concentration, determine the nanofluid stability regime. Indeed, it is often too complicated and even impossible to accurately find the conditions resulting in a stabilized nanofluid. Furthermore, there are no empirical, semi-empirical, and even intelligent scenarios for anticipating the stability of nanofluids. Therefore, this study introduces a straightforward and reliable intelligent classifier for discriminating among the stability regimes of alumina-water nanofluids based on the Zeta potential margins. In this regard, various intelligent classifiers (i.e., deep learning and multilayer perceptron neural network, decision tree, GoogleNet, and multi-output least squares support vector regression) have been designed, and their classification accuracy was compared. This comparison approved that the multilayer perceptron neural network (MLPNN) with the SoftMax activation function trained by the Bayesian regularization algorithm is the best classifier for the considered task. This intelligent classifier accurately detects the stability regimes of more than 90% of 345 different nanofluid samples. The overall classification accuracy and misclassification percent of 90.1% and 9.9% have been achieved by this model. This research is the first try toward anticipting the stability of water-alumin nanofluids from some easily measured independent variables.

• Journal of Evidence-Based Herbal Medicine
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• 제1권2호
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• pp.27-33
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• 2008

Allergic rhinitis comes within snuffle in Chinese medicine. For generations, physicians have believed that the internal factors that cause this disease are pulmonary tuberculosis, splenic hypofunction and loss of virility, and its external factors are a cold, an uncommon atmosphere and an uncommon flavor. From the viewpoint of Chinese medicine, this symptom was fundamentally cured by "abidance by individuality, locality and seasons", on the basis of demonstration. In result, visceral function was recovered. In Chinese medicine, a disease is etiologically cured by the principles of Wholism and by discriminating among symptoms. In particular, "method for replenishing Qi and securing Exterior" has been widely used among the foregoing therapeutics. According to modern pharmacology, Astragli Radix, Atractylodis Macrocephalae Rhizoma and Ledebouriellae Radix all have antihistaminic effects and strengthen of the masticating and swallowing function of the recticuloendothelial system. This disease can be cured by controlling immunity and allergic reactions. Besides, it is necessary to take moderate exercise, to strengthen constitution, to avoid causative substances, to control ingesting flesh, meat and shrimps, to eat little, and to avoid what is cold and raw.

• 한국주거학회논문집
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• 제26권4호
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• pp.83-94
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• 2015

Ernst May and the New Frankfurt Initiative are well known for the urban planning and the Housings in Frankfurt a. M. Their works tend to be underestimated because of some factors such as modest attitude toward modernism design vocabulary, short period that their programs lasts, and modification/recession of project in actual construction. So, This study aims to build up the relations related to Housing, such as situation of post World War I in German Society and Frankfurt, May's cognition on the working class, and realization of rationalization as a major tools of the modernity. Ernst May considered the working class with bipolar standpoint. Ernst May and His team considered working class and those families not only as object of relief but also as potential 'modern citizens' to be disciplined; he sympathize poor conditions of working class while discriminating them by their labor charge. Acceptance of Socially Disadvantaged group in construction were also proceeded in means of recession of cost. Even Ernst May and his team did not achieved the goals that they thought they could, their Siedlung and house designs articulated the sense of modernity, which presented in rationalization with highly practical manner. Those are realized in 3 directions; respectful considerations for existing traditional factors, application of extendable logics of physical/social hygiene, and reflection of issues with standardization and mass production.