• Journal of Music and Human Behavior
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• v.6 no.2
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• pp.43-70
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• 2009

The purpose of this study was to find out how a vocal improvisation program can improve performance anxiety of students who are majoring in music. Four students participated in the vocal improvisation program for 8 weeks, and Spielberger's State-Trait Anxiety Inventory was administered prior to and after the completion of program. The following are results from this study. First, participants' anxiety score as measured by STAI-S significantly decreased 16.5 (p < .068) average. Second, a decrease in the subjects' practical anxiety level was quantitatively shown following this program the participants' anxiety score decreased on average by 25.5 (p < .068). Third, the subjects reported a positive musical experience as an outcome of this study. The results of the research as described above support priority researches that the music therapy program influences to decrease musical performance anxiety. The vocal improvisation program used in this study proved effective for decreasing general anxiety and releasing musical performance anxiety. This study indicates future uses of music therapy and music psychotherapy for college students who experience musical performance anxiety.

• KSCE Journal of Civil and Environmental Engineering Research
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• v.5 no.3
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• pp.85-93
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• 1985

An initial attempt was made to investigate sea surface topography in the East China Sea using the SEASAT-A altimeter data. Over the study area for the two major typhoon surges generated during the SEASAT mission, space and time variability of the shallow water tides, meteorological effects and earth tides were removed from the altimetric measurements using the systematic procedures which include the two-dimensional sea model of the East China Sea. The analysis of ten flights over the ground track for the typhoon periods were presented and discussions were made for further studies. This initial study has been undertaken in association with the programme of establishment of systematic altimeter data reduction system for the study of shelf dynamics in the East China Sea.

• Journal of the Korean School Mathematics Society
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• v.22 no.3
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• pp.183-197
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• 2019

The purpose of this study is to support elementary teachers to use the teaching of weights and measures. To help the author of the next elementary mathematics textbook to be used as a reference for the quantitative narrative process. For this purpose, I focused on the contents of textbooks in terms of definition, a unit of measure, and calculation. As a result, first, as for the definition of weights and measures, it is taken as an example rather than as an explicit statement. Second, several problems were found in the metrology content and metric unit introduction order. Third, the computation between measurement units stood in simple computation rather than procedural knowledge. Fourth, it was concluded that the reason and groundbreaking of the grade-specific differences and the amount of a student's education are necessary.

• School Mathematics
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• v.18 no.4
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• pp.839-856
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• 2016

In 2009 revision and 2015 revision mathematics national curriculum, 'proof' was moved to high school from middle school in consideration of the cognitive development level of students, and 'proof by contradiction' was stated in the "success criteria of learning contents" of the first year high school subject while it had been not officially introduced in $7^{th}$ and 2007 revision national curriculum. Proof by contradiction is known that it induces a cognitive conflict due to the unique nature of rather assuming the opposite of the statement for proving it. In this article, based on the logical, mathematical and historical analysis of Proof by contradiction, we looked about the introductions and the applications of the current textbooks which had been revised recently, and searched for improvement measures from the viewpoint of discovery, explanation, and consilience. We suggested introducing Proof by contradiction after describing the discovery process earlier, separately but organically describing parts necessary to assume the opposite and parts not necessary, disclosing the relationships with proof by contrapositive, and using the viewpoint of consilience.

• Journal of the Korean Society of Surveying, Geodesy, Photogrammetry and Cartography
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• v.26 no.4
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• pp.407-414
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• 2008

This study introduces an automatic image matching algorithm that can be applied for the scale different image pairs consisting of the satellite pushbroom images and the aerial frame images. The proposed method is based on several image processing techniques such as pre-processing, filtering, edge thinning, interest point extraction, and key-descriptor matching, in order to enhance the matching accuracy and the processing speed. The proposed method utilizes various characteristics, such as the different geometry of image acquisition and the different radiometric characteristics, of the multi-sensor images. In addition, the suggested method uses the sensor model to minimize search area and eliminate false-matching points automatically.

• School Mathematics
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• v.11 no.1
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• pp.111-129
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• 2009

This paper is about didactical transposition, which is to transpose academic knowledge into practical knowledge intended to teach. The research questions are addressed as follows. 1. Are the 13 mathematics textbooks of the 10-Na level indisputable regarding with the didactical transposition, in terms that the order of arrangement and the way of explaining the knowledge of trigonometric functions being analyzed and that its logical construction and students' understandings are considered? 2. Can some transpositions for easier use of didactical manipulative, for more practical and for more principle based be proposed? To answer these questions, this research examined previous studies of mathematics education, specifically the organization of the textbook and the trigonometric functions, and also compared orders of arranging and ways of explaining trigonometric functions from the perspective of didactical transposition of 13 versions of the 10-Na level reorganized under the 7th curriculum. The paper investigated what lacks in the present textbook and sought a teaching guideline of trigonometric functions(especially about sector and graph, period, characters of trigonometric function, and sine rule).

• Journal of the Korea Academia-Industrial cooperation Society
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• v.16 no.8
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• pp.5325-5335
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• 2015

This study was conducted to investigate violence experiences and coping behaviors of nursing students when they were doing clinical practice. Data were collected from 250 nursing students from 10th of November to 10th of December in 2014 using questionnaires. 231 questionnaires were analyzed by descriptive statistics, t-test, and one-way ANOVA. 98.7% of the subject have experienced violence. Most frequently mentioned setting where violences were experienced was psychiatric unit, abusers were patient. Most frequent violence type was verbal abuse(97.4%) followed by physical threatening(76.2%). Most frequent coping behavior was enduring(87.8%) followed by avoiding(83.2%). In this study, most of nursing students experienced violence during the clinical practice. They need to be better protected from violence during the clinical practice. It is needed various active effort and programs to prevent violence and to help students cope more against violence in their practice.

• Journal of the Korea Academia-Industrial cooperation Society
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• v.16 no.4
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• pp.2593-2601
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• 2015

This study was conducted to describe the relationship of Communication Skill, Communication Self-Efficacy and Communication Related Educational Needs of nursing students. The participants were 206 nursing students in K City who were surveyed using self report questionnaires and the data was analyzed using SPSS 20.0. 83.5% of nursing students answered communication related education was necessary and they preferred practice centered communication education through role-play. And there was a significant positive correlation between Communication Skill and Communication Self-Efficacy. The results of this study provided a foundation to develop efficient communication program to improve interpersonal relationship of nursing students.

• Journal of Internet Computing and Services
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• v.16 no.2
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• pp.41-48
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• 2015

On movie review sites, movie ratings are determined by netizens' subjective judgement. This means that inconsistency between ratings and opinions from netizens often occurs. To solve this problem, this paper proposes sentiment sentence sets which affect movie evaluation, and apply sets to comments to infer ratings. Creation of sentiment sentence sets is consisted of two stages, construction of sentiment word dictionary and creation of sentiment sentences for sentiment estimation. Sentiment word dictionary contains sentimental words and its polarities included in reviews. Elements of sentiment sentences are combined with movie related noun and predicate from words sentiment word dictionary. In this study, to make correspondence between polarity of sentiment sentence and sentiment word dictionary, sentiment sentences which have different polarity with sentiment word dictionary are removed. The scores of comments are calculated by applying averages of sentiment sentences elements. The result of experiment shows that sentence scores from sentiment sentence sets are closer to reflect real opinion of comments than ratings by netizens'.

• Journal of Broadcast Engineering
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• v.22 no.1
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• pp.62-69
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• 2017

Accurate detection of traffic lights is very important for the advanced driver assistance system (ADAS). There have been many research developments in this area. However, conventional of image processing methods are usually sensitive to varying illumination conditions. This paper proposes a traffic light detection algorithm to overcome this situation. The proposed algorithm first detects the candidates of traffic light using the proposed color map and hue-saturation-value (HSV) Traffic lights are then detected using the conventional histogram of oriented gradients (HOG) descriptor and support vector machine (SVM). Finally, the proposed Multilayer HOG descriptor is used to determine the direction information indicated by traffic lights. The proposed algorithm shows a high detection rate in real-time.