• KOREAN JOURNAL OF CROP SCIENCE
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• v.29 no.3
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• pp.285-290
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• 1984

The effects of retardants B995 and CCC on the growth and yield of soybean cultivar, kwanggyo, were investigated. The 3 application times(4th, 5th and 6th trifoliate leaf stage) combined with 4 concentrations (500, 1000, 2000 and 3000 ppm) were treated, and the retardant solutions were sprayed on the foliage. Only stem length in retardants, rate of podding in application times, and, in concentrations, stem length, number of branch, number of pod per plant and grain yield, were significant. In the inhibition of stem elongation, B995 was more effective than CCC, and rate of podding was the highest in the 4th leaf-spraying. The highest concentration, 3000 ppm, was the most effective in the inhibition of stem elongation and in the increase of number of branch and pod, rate of podding, and in yield. The number of node of mainstem, dry stem weight, chlorophyll and 100 grain weight were not significant with any treat. Yield had positively correlated with number of branch and pod, and rate of podding but negatively with stem length. The retardants was thought to be considerably conducive to the increase of yield.

• Journal of Engineering Education Research
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• v.12 no.2
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• pp.14-23
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• 2009

Most of the volunteering and community service had no direct link with classroom learning. Service-learning educational methodology that directly and intentionally integrates the classroom learning with service to the community. Research has found that this combination can improve the academic learning of the course material, give participants a deeper understanding of the social issues they address and provide valuable community services. And, service-learning has been offend environment to meet many of the KEC 2005 criteria that many be difficult to integrate into traditional engineering course. In studying, recognizing why service learning is a new attempt what is different form other learning experiences, we would like to search management strategies for service learning course and program development.

• Journal of Internet Computing and Services
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• v.8 no.2
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• pp.15-22
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• 2007

As we detect defects and eliminate them in early stages, we can make better quality software. For doing this task, we need to use a defect tracking system which con effectively track and manage defects that give severe effects on software quality. Those existing defect tracking systems have some weaknesses as we apply them to organizations that use CMMI for process improvements. Major problems of those systems are that they require the organizations to collect many types of defect data at a time without providing the proper explanation and even without the support of defect management process. The organizations at CMMI maturity level 2 and 3 have problems for analyzing those defects because there is no specific process area at CMMI maturity level 2 and 3 which directly handles defect managing activites. This paper resolves those problems by developing a defect tracking system which offers methods of managing defects. And the system provides guidelines of which defects should be gathered for each CMMI mathurity levels. The system also has functions to generate various status and statistic information on defects, and to assign defect data to the person in charge so that he or she track the defect to the closure

• Journal of Korean Society of Disaster and Security
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• v.10 no.1
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• pp.75-84
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• 2017

This study is concerned with the estimation of daily instantaneous maximum wind velocity in the meteorological major cities (selected each 17 points) during the yearly 1973-2016. The purpose of this paper is to present the turbulence statistic characteristics (probability distribution, correlation coefficient, turbulency intensity, shear velocity, roughness length, turbulence integral length, skewness, and kurtosis) of the daily instantaneous maximum wind velocity. In the processes of analysis, used observations data obtained at Korea Meteorological Adminstration (KMA). The estimation of non-Gaussian load effects for design applications has often been treated tacitly by invoking a conventional wind design load on the basis of Gaussian processes. This assumption breaks down when the instantaneous wind velocity processes exhibits non-Gaussianity. From the analysis results, the probability distribution of the daily instantaneous maximum wind velocity shows a very closed with non-Gaussian in the ensemble population 748, the correlation coefficient shows larger at inland area more than coastal area.

• Journal of Broadcast Engineering
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• v.15 no.2
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• pp.236-247
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• 2010

Recently, mean shift tracking algorithms have been proposed which use the information of color histogram together with some spatial information provided by the kernel. In spite of their fast speed, the algorithms are suffer from an inherent instability problem which is due to the use of an isotropic kernel for spatiality and the use of the Bhattacharyya coefficient as a similarity function. In this paper, we analyze how the kernel and the Bhattacharyya coefficient can arouse the instability problem. Based on the analysis, we propose a novel tracking scheme that uses a new representation of the location of the target which is constrained by the color, the area, and the spatiality information of the target in a more stable way than the mean shift algorithm. With this representation, the target localization in the next frame can be achieved by one step computation, which makes the tracking stable, even in difficult situations such as low-rate-frame environment, and partial occlusion.

• School Mathematics
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• v.14 no.3
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• pp.331-355
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• 2012

All the method used in teaching the ellipse was to have students draw the points which have the same sum of distances from the two points so that they can confirm the shapes of the ellipse before showing them the definition of ellipse. In this process, students would not get an opportunity to think or make the definition of ellipse for themselves. This deductive way can hinder students from having clear understanding of why such definition was made. This paper introduces a method of defining the ellipse based on the similarity between a circle and an ellipse, leading into the equation. This method is possible by introducing Analytic Geometry taught in current school mathematics and Transformation Geometry. By doing so, this paper will discuss a fundamental understanding about the ellipse and the feature of the ellipse expandable by intuition. Furthermore this paper will also show various advantages which can be given by defining the ellipse in Transformation Geometry.

• School Mathematics
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• v.11 no.4
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• pp.685-706
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• 2009

This dissertation is aimed to investigate the reason why a contextualization is needed to help the meaningful teaching-learning concerning multiplications and divisions of fractions, the way to make the contextualization possible, and the methods which enable us to use it effectively. For this reason, this study intends to examine the differences of situations multiplying or dividing of fractions comparing to that of natural numbers, to recognize the changes in units by contextualization of multiplication of fractions, the context is set which helps to understand the role of operator that is a multiplier. As for the contextualization of division of fractions, the measurement division would have the left quantity if the quotient is discrete quantity, while the quotient of the measurement division should be presented as fractions if it is continuous quantity. The context of partitive division is connected with partitive division of natural number and 3 effective learning steps of formalization from division of natural number to division of fraction are presented. This research is expected to help teachers and students to acquire meaningful algorithm in the process of teaching and learning.

• Archives of design research
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• v.11 no.1
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• pp.119-130
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• 1998

The social-democratic ideas which define the modern national Swedish idea have had an important influence on Swedish modern design during this century. Swedish designers found humanistic and democratic values in the traditional design style and they tried to create a modem style that was based on handcraft traditions as well as modern industrial aesthetics. Issues raised by Swedish designers of that time induded how Sweden was achieving a national identity through design and how design retlected changes within society. The purpose of this study is to investigate the social reformation policy of the Swedish government during the 1930-1970 period and its influence on Swedish modern design. This paper, it is hoped, will provide an opportunity to place contemporary Swedish design in a social and aesthetic context.

• Journal of Digital Convergence
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• v.14 no.4
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• pp.425-435
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• 2016

This paper has the aim to track down the viewers' cognitive emotion of how they are interacting with the story of Shakespeare in Love. Human minds have cognitive and emotional flows while plots, characters, and action-ideas are intertwined in the story of the film. This paper especially focused on the analysis of characters' networks with four statistical data pictures in order to schematize the storytelling architecture on how and why Shakespeare has strongly motivated to write a great star-crossed love play, Romeo and Juliet in his very young age. This paper examines that Shakespeare's subject of desire is to accomplish both a true love and a sincere play which can make the nature of love true. The desire of subject is always slipped aside into scattering with "object a." In the film of Shakespeare in Love, the "object a" is a writing process and has a product of Romeo and Juliet as well.

• Journal of the Korean Data and Information Science Society
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• v.22 no.2
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• pp.171-177
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• 2011

With the development of the actuarial and insurance industries, the distributions of the insurance payments data are deeply studied by many authors. It is known that theses types of distribution are very highly positively skewed and have a long thick upper tail such as Pareto or lognormal distribution. In 2005, Cooray and Ananda proposed a new model which is composed lognormal distribution and Pareto distribution. They said it as composite lognormal-Preto distribution. They showed that the proposed distribution was better fitted than lognormal or Pareto distribution. On the other hand many agreements about the insurance payment have some options for a trivially small payment or extremely large one because of the limits of total payment. Appling these cases, in this paper we consider the parameter estimation on the composite lognormal-Pareto distribution based on doubly censored samples.