• Journal of Environmental Science International
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• v.23 no.7
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• pp.1307-1320
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• 2014

A number of problems associated with environmental noises in urban areas have significantly been considered. Specific measurement and estimation of the environmental noise became a primary issue in local governments. Environmental noise monitoring system is required in order to estimate and verify the a city noise map. However, current monitoring positions may not perfectly represent and incorporate many different view points, such as districts of a city, different utilizations of a city by the law, populations, and classifications and traffics of roads. In addition, scientific method to provide specific noise monitoring positions my not be avaliable in current literature. For this reason, the primary objective of this paper is to propose a new method for introducing a number of monitoring positions in the entire city. First, the quality function deployment (QFD) method was utilized to simultaneously represent both districts and utilizations of a city. Second, a new algorithm to find a number of monitoring positions was proposed by compromising many different view points: populations, classifications of roads and areas, and traffics of roads. Finally, the proposed monitoring positions and a sample noise map was provided for verification purposes. Based on these results, the proposed algorithm including the QFD concept may successfully provide specific noise monitoring positions by simultaneously consider may different view points and requirements of a city.

• Journal of Science Education
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• v.39 no.2
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• pp.278-289
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• 2015

The purpose of this study is to analyze selection methods of gifted students. This study focuses on the understanding the characteristics of gifted students in accordance with the selection methods, i.e. the examination selection and automatic promotion by analyzing and comparing the academic emotion, meta-cognition, and self-efficacy between gifted students selected according to the selection methods. Moreover, for the purpose of the effective gifted education, this study aims to arrange a reasonable basis for the discrimination and selection of gifted students. The results of this study were as follows. First, there was no meaningful difference between gifted students selected by an examination and promoted automatically in view of academic emotion, meta-cognition, and self-efficacy of gifted students. It is determined that there is no difference between the effects of selection methods under the condition of the same group of gifted students. Second, regarding the academic emotion of gifted students, there is no significant difference in both the elementary and middle school in case of examination selection. However, in case of the automatic promotion, the academic emotion of gifted students promoted automatically in the gifted education center was higher than that of the gifted students in the gifted class (p < .05). Regarding the meta-cognitive skill, there is no difference in the elementary school between the selection methods. In case of the examination selection in the middle school, the meta-cognitive skill of male students of the gifted education center was higher than that of the female and gifted class students (p < .05). In case of the automatic promotion in the middle school, the meta-cognitive skill of students of the gifted education center was higher than that of students of the gifted class (p < .05). As for the case of self-efficacy, there were no differences between the selection methods. In the automatic promotion, self-efficacy of students of the gifted education center was higher than that of students of the gifted class (p < .05).

• Journal of the Korean Institute of Intelligent Systems
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• v.22 no.3
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• pp.386-393
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• 2012

Portfolio selection methods based on stochastic receding horizon approach, which were recently reported in the field of financial engineering, can explicitly consider the dynamic characteristics of wealth evolution and various constraints in the process of performing optimal portfolio selection. In view of the theoretical value, versatility, and effectiveness that receding horizon approach has achieved in many engineering problems, dynamic portfolio selection methods based on stochastic receding horizon optimization technique have the possibility of becoming an important breakthrough. This paper observes through theoretical investigations that the SDP(semi-definite program)-based portfolio selection procedure can be simplified, and has obtained meaningful performance on returns from simulation studies applying the simplified version to Korean financial markets.

• Journal of Korean Foot and Ankle Society
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• v.17 no.3
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• pp.189-195
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• 2013

Purpose: We investigated a statistical difference of tibial-articular surface (TAS) angles between radiographs of standing ankle anteroposterior (AP) and whole lower extremity view, and evaluated whether the tibial axis obtained from the standing ankle AP view reflects the original mechanical axis of lower extremity. Materials and Methods: Both the standing ankle AP and whole lower extremity view were taken from 60 legs of 30 healthy volunteers without a history of ankle surgery or deformity of lower limb. To determine the tibial axis, Takakura's and Hintermann's method were employed in the standing ankle AP view. To compare these results with the original TAS angle, ANOVA and multiple comparison test were used. Results: The mean TAS angle was 88.3 degrees(from hip joint to ankle), 89.5 degrees (from knee joint to ankle), 88.5 degrees (Takakura's method), and 90.2 degrees(Hintermann's method). Although there was a statistical significance (p=0.000) between these results, Takakura's method had no significant difference, compared to the results of whole extremity view by the multiple comparison test. Conclusion: The tibial axis obtained by Takakura's method reflects the original mechanical axis of lower extremity. When a surgical procedure is planned, however, it is necessary to consider that the ankle radiographs do not provide any information on the proximal deformity without the whole lower extremity view.

• Journal of the Korea Academia-Industrial cooperation Society
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• v.17 no.10
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• pp.709-718
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• 2016

The study considers viewpoints for qualitative improvement of landscape planning based on research literature, books and reports. By classifying items used in this study, evaluation criteria was derived for viewpoint selection using SPSS Statistics. In addition, we establish weights and prioritize viewpoints by measuring the relative importance within the hierarchical index. The analysis results are as follows: First, 16 viewpoints were determined using surveys from experts to establish specific and systematic plans for landscape simulation. Second, with respect to the medium classification level of viewpoint evaluation, the most important factor found was 'view' followed by 'publicness' and 'place.' Third, priority by viewpoint was found to exhibit the following order of relative importance: visual openness of viewpoint, favorability as view target, cultural property space, historicity, public place, gateway place, area where the target can be observed, thickly-populated or most-used place, place where various shapes of targets and surrounding landscape can be identified, ecological protection area, river and waterside area, viewing angle (relief-etching), viewing direction, major roads, distance between the viewpoint and the target, and plains and farmland. These results can contribute to developing systematic and reliable analysis frame for qualitative improvement of landscape planning and evaluating landscape simulation.

• Journal of Broadcast Engineering
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• v.25 no.2
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• pp.265-274
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• 2020

Free-viewpoint video service is a technology that allows users to watch at any angle, location and distance through interaction. In this paper, the free-viewpoint video services are defined in four viewing modes: Inward view, outward view, 3D object view and first person view. And we developed and implemented a new integrated program that plays all the suggested views. In the contents of girl band performances and basketball games, multi-view cameras suitable for each viewing mode are installed to acquire media, and data stored on the server is streamed over the network, making it available for viewing. Users can freely choose four viewing modes, space location, angle and so on, and the media data such as images and sounds are provided to them by rendering appropriately for the selected the viewpoint. Our system is expected to be a scalable free-viewpoint video service player as well as provide users with immersion and presence by combining various viewing modes.

• Korean Journal of Health Education and Promotion
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• v.9 no.1
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• pp.48-65
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• 1992

The purpose of this study is to examine the influence that the marriage view of unmarried women have on future marriage, and to study which meaning this result have in the family health. Thus, for the study purpose which corresponds with it, the question survey was made, by making 500 unmarried women in the twenties in Seoul, from Aug. 16, 1991 to Sept. 5, 1991. And, as for the concrete survey contents, the idea on the marriage and family, marriage tiem, marriage selection, and the family planning after marriage etc. were center. As for the result examined in accordance with this, the data analysis was made by use of SPSS. And, as a result of the analysis, following conclusion was obtained. 1. About the necessity of marriage, 72.2% among the whole respondents had the affirmative attitude. On the other hand, the negative attitude about the necessity of marriage showed as 8.9%. This result is higher than 4.6% of Japan. Thus, it can be regarded as what reflected the tendency that the spinsterhood is increasing, with the decrease of the necessity about the marriage of the unmarried women of our nation recently. 2. Desiring marriage time is average 26.93 years old. Thus, it foreshowed that the late marriage tendency would continue. The relevancy to this late marriage was high (P＜.001), in case that the age is high, and that the education level of parents is low (P＜.01), and in case of the lone father and mother(P＜.001) 3. The age difference with the spouse at the time of marriage is average 3.1 age. Thus, it was the tendency that 0.2 age was narrowed than the recent data of Statistics Agency. And, the difference appeared narrow, in case that the age of respondent is high and the level of education is high(P＜.001). The selection condition of spouse showed the tendency to take a serious view of individual rather than family clan, in the oder of character, health and job etc. In addition, as for the selection method of spouse, the tendency to prefer love marriage to marriage made up by a go-between. And, in case of the respondent whose age is low, education level is high, both parents are in existence (P＜.001), number of brother is small, education level of parents is high, it showed to prefer the love marriage(P＜.05).

• Journal of Korean Elementary Science Education
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• v.25 no.4
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• pp.352-362
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• 2006

Many misconceptions regarding biology and evolution have been reported by students prior to being exposed to a formal education program of evolution which challenged them. This study sought to investigate and to analyze the misconception formation process of evolution originating from TV animation and science books for children. Firstly, to identify TV animation's influence on students' misconceptions of evolution, a questionnaire including TV animation characters was constructed and administered to 146 elementary school students, 161 middle school students, and 156 high school students. The data collected was analyzed. Secondly, 17 science books for children were sampled and the contents related to evolution were selected and analyzed in terms of five evolutionary explanations: creationism internal will explanation, teleological explanations, explanations of use and disuse, mutation and finally, natural selection. Children have understood 'growth' and 'metamorphosis' on TV animation as 'evolution'. The processes by which characters on TV animation undergo some forms of change, which are in fact a kind of metamorphosis has often been understood as 'evolution'. Many respondents have defined evolution incorrectly as the process of growing and changing shape. On the other hand, some science books fur children contained descriptions of evolution including' mutation and finally natural selection explanation'; however, most of the science books fur children sampled in this study were written through the perspectives of alternative evolutionary views such as 'teleology view', 'internal will view', and 'use and disuse view'. It is apparent that TV animation and science books fur children influence the formation of various misconceptions regarding evolution by children.

• International Commerce and Information Review
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• v.11 no.3
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• pp.75-100
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• 2009

With the change of various business environments, needs for the third party logistics(3PL) service are strategically considered for securing core competitiveness of manufacturers in China. Thus, manufacturers not only have worked with 3PL service providers for cutting costs of logistics, but also they are willing to have Win-Win relationship with the 3PL service provider. In this paper, comparing situation and characteristics of both China and developed-countries, especially in the particularity of manufacturing companies in China. The most important thing is that 3PL service providers must be able to manage supply chain of manufacturers with logistic planning abilities and to operate logistics services with logistic infrastructures and IT systems. In the view of long-term development, incubating logistics specialists is also the influencing fact that makes 3PL service providers more competitive with high quality logistics service and infrastructures.

• Journal of the Korean Society for Library and Information Science
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• v.19
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• pp.113-149
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• 1990

The RAK has in general adopted the provisions of the paris principles to a far greater extent than many other cataloguing codes. And the analyses confirm that the determination of the main entries in German cataloging rules is a rather complex process and one which can result in inconsistent, arbitrary decisions. And the selection of the main entry requires a considerable amount of decision making which is time-consuming and costly. From the point of view of computers, all entries are equal as points of retrieval. In light of the above considerations the most important recommendation to be made is that the main entry principle be abandoned from cataloging theory and practice and be replaced by the title entry. It would eliminate the need for personal judgments required by the present rule. In so doing, it would bring uniformity and Standardization to cataloging practice. Use of the title entry would reduce the time and effort spent on the selection of the main entry which serves no important purpose in the catalog. Therefore title entry is more developed finding device than author entry in direct approach for document retrieval.