• 수산해양교육연구
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• 제21권1호
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• pp.173-186
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• 2009

The purpose of this study is to analyze cognition of middle school students on an educational institute of life. For this purpose, the three times of in-depth interviews which were performed the subjects, 6 middle boy＇s school student. The data passed through process of three dimension, abstraction of idea, categorization, interpretation. In this process, were discovered four category of educational institute of life. It was pilgimage, activity, system, and compare with school. The major results of this study were follows: first, an educational institute of life is natural of life to student and they accept the life themselves not coercion gradully. second, study of educational institute is repetitional and many and only for school test. third, system of educational institute is concenturated for study, in this point, students distinguish school with educational institute. fourth, in compare with school, educational institute is more comfortable than school. Also, educational institute take care of student more than school.

• 한국실내디자인학회논문집
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• 제36호
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• pp.22-29
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• 2003

Most of the studies on traditional houses dealt with the exiting houses which were constructed Chosun Dynasty. But It is to be classified into many items which were point of view period, regional group and social condition. The purpose of this study Is compare early-Chosun Dynasty with late-Chosun Dynasty that the Visual Structure of traditional houses in Yang-Dong village. Early-Chosun Dynasty and late-Chosun Dynasty of traditional houses were well preservation in Yang-Dong village. Therefore traditional houses in Chosun Dynasty are able to classified according to period type of Early-Chosun Dynasty and late-Chosun Dynasty, which a study on the compare spatial composition of traditional houses in Yang-Dong village.

• 한국생산제조학회지
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• 제8권4호
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• pp.38-44
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• 1999

This paper primarily directed toward analyzing the frequency response in hydraulic pipe lines with a small diameter. The exact solution to the frequency response is obtained by using the complicated transfer function. The discrepancy with the exact and the approximate is small so the approximation solution is adopted to compare the experimental results with the theoretical analysis. In this experiment the input frequency was generated by the frequency generator with the ball valve and speed controller. In order to compare the theoretical were forms with the experimental ones the trace obtained from the oscilloscope is photographed, The diameter the length of lines and input pressure amplitude are varied to investigate their effects,. the experiment results show that th values of dimensionless parameter are very affected to the phase delay and guide response time in the design of pressure manifold to measure the pressure of hydraulic pipelines.

• 한국학교수학회논문집
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• 제8권1호
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• pp.89-100
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• 2005

연구에서는 한국과 러시아의 수학교과서에 제시된 '삼각형의 합동'에 관련된 학습 내용을 분석하여, '삼각형의 합동'의 내용 기술 체계, 삼각형의 합동조건과 작도문제, 삼각형 합동조건의 정당화 방법 등을 비교하였다. 이를 통해, 우리나라 수학교과서의 질적 개선을 위한 의미로운 자료들을 제시하였다..

• 대한음성학회지:말소리
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• 제62호
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• pp.133-147
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• 2007

In this paper, we introduce a phone vector discrete HMM(PVDHMM) that decodes a phone sequence string, and demonstrates the applicability to spoken document retrieval. The PVDHMM treats a phone recognizer or large vocabulary continuous speech recognizer (LVCSR) as a vector quantizer whose codebook size is equal to the size of its phone set. We apply the PVDHMM to decode the phone sequence strings and compare the outputs with those of a continuous speech recognizer(CSR). Also we carry out spoken document retrieval experiment through PVDHMM word spotter on the phone sequence strings which are generated by phone recognizer or LVCSR and compare its results with those of retrieval through the phone-based vector space model.

• Asian Journal of Innovation and Policy
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• 제4권1호
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• pp.35-54
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• 2015

The purpose of this study is to compare the valuation of technology firms in the KOSPI and KOSDAQ. This study analyzed 224 market reports for KOSDAQ firms and 602 reports for KOSPI firms. We compare the two markets under 3 definitions on the accuracy of stock price forecasting. Findings are as follows: Although PER multiples is the most used method of valuation, KOSDAQ valuation more heavily relies on the method than KOSPI valuation. In stock market, the period of earnings forecasting is mostly 2-3 years. Multiples of KOSDAQ is generally higher than those of KOSPI. Even for technology firms, valuation in KOSPI mostly relies on earnings of the company, but that in KOSDAQ mostly relies on relative price. In stock price forecasting, generally overestimation prevails. Moreover, forecasting of KOSPI reports is more accurate than that of KOSDAQ reports. ROE and COE of KOSDAQ firms are generally higher than those of KOSPI firms.

• 설비공학논문집
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• 제24권1호
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• pp.85-89
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• 2012

This study has been conducted to compare two cargo handling systems on MR tanker and Panamax tanker. Submerged hydraulic cargo pumps with hydraulic power packs and frequency converter controlled electric deepwell pumps will be investigated and compared on all aspects of initial cost, installation, operation and maintenance. The result of investigation shows Electric Systems have less manufacturing costs, higher environmental friendliness and reliable operation compare to Hydraulic Systems. Furthermore, the present experimental data will provide important database for Electric Systems onboard new ships and practical and empirical guidelines are constructed for further determine the design of the Electric Systems.

• 대한전자공학회:학술대회논문집
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• 대한전자공학회 2002년도 ITC-CSCC -1
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• pp.133-136
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• 2002

This paper presents a new method of Huffman decoding which gives a significant improvement of processing efficiency based on the reconstruction of an efficient one-dimensional array data structure incorporating the numeric interpretation of the accrued codewords in the binary tree. In the Proposed search method, the branching address is directly obtained by the arithematic operation with the incoming digit value eliminating the compare instruction needed in the binary tree search. The proposed search method gives 30% of improved Processing efficiency and the memory space of the reconstructed Huffman table is reduced to one third compared to the ordinary ‘compare and jump’ based binary tree. The experimental result with the six MPEG-2 AAC test files also shows about 198% of performance improvement compared to those of the widely used conventional sequential search method.

• 대한전자공학회:학술대회논문집
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• 대한전자공학회 2005년도 추계종합학술대회
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• pp.477-480
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• 2005

In this paper, we propose a preprocess method to needs for Car License Plate Recognition on poor environment. This preprocess method use multi images to get low value to compare images value. Last method was Opening operation that Using Edge pixel to add and subtraction. The Result was removed White pixel and very mini feather. But This method needs many process times and License Plate Recognition is low quality problem. Another method is median filter and conversion. This paper key idea that rain & snow is high value. So This paper propose get low value to compare image value.

• East Asian mathematical journal
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• 제32권4호
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• pp.443-464
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• 2016

The purpose of ths study is to compare and analyze the sequence of teaching multiplication facts in the elementary school mathematics. Generally, the multiplication in the elementary school mathematics is composed of the followings; concepts of multiplication, situations involving multiplication, didactical models for multiplication, and multiplication strategies for teaching multiplication facts. This study is focusing to multiplication facts, especially to the sequence of teaching and multiplication strategies. The method of this study is a comparative and analytic method. In order to compare textbooks, we select the Korean elementary mathematics textbooks(1st curriculum~2009 revised curriculum) and the 9 foreign elementary mathematics textbooks(Japan, China, Germany, Finland, Hongkong etc.). As results of comparative investigation, the sequence of teaching multiplication facts is reconsidered on a basis of elementary students' mathematical thinking. And the connectivity of multiplication facts is strengthened in comparison with the foreign elementary mathematics textbooks. Finally multiplication strategies for teaching multiplication facts are discussed for more understanding and reasoning the principles of multiplication facts in the elementary school mathematics.