• Proceedings of the Korea Port Economic Association Conference
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• 2003.07a
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• pp.29-47
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• 2003

본 연구의 목적은 지난 20년 간 세계 컨테이너항만들을 대상으로 항만집중도 및 항만규모와 성장간 상관관계를 분석해 봄으로써 현재 우리나라가 추진하고 있는 중심항만 개발전략에 대한 시사점을 제시하는 데 있다. 이를 위해 아시아 21개 항만의 허쉬만-허핀달지수를 구하였으며, 세계 50대 컨테이너 항만뿐만 아니라 유럽, 북미 그리고 아시아지역 컨테이너항만들을 대상으로 항만규모와 성장간 실증분석을 시도하였다. 그 결과 아시아 컨테이너항만의 물동량 집중도는 90년대 중반 이후 둔화되고 있으며 동북아지역 항만집중도가 다른 지역에 비해 상대적으로 낮은 것으로 나타났다. 항만규모와 성장간 관계에 있어서도 세계 및 유럽 항만들은 대형항만일수록 성장률이 높았던 것으로 나타난 반면, 아시아지역 컨테이너 항만들은 소형항만들의 성장률이 더 높았던 것으로 분석되었다.

• Cartoon and Animation Studies
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• s.16
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• pp.49-65
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• 2009

I try to extract typological factors from the historically relevant works of animation, for that we can refer 'style.' creator's individuality, general tendencies and restraints of his time, the national properties work on them. It is the individual aspect that excels in the works of Jiri Trnka, Tim Burton, Yuri Norstein, so they stand out not only in their own specific sensibility, vision but also in the elucidation of themes and the technology of dealing medium. On the other hand the Walt Disney's animation has so distinctive characteristics that we could identify them. Disney's so-called classical model accomplished a typically American animation form as full of expressive visual language, over reaction, full animation describing detail action. We could tell, Miyajaki Hayao's Gibri Studio represents Japanese animation, which works on traditional motives of Japan and expresses unique humanity.

• Journal of Auto-vehicle Safety Association
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• v.13 no.2
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• pp.50-56
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• 2021

The purpose of this study is to investigate vulnerable parts of tower crane structures by analyzing extensive non-destructive test data. Approximately ten percent of domestically registered tower cranes were inspected by using magnetic particle inspection. The testing was carried out as advised in KS B 0213. The non-destructive results was analyzed with respect to jib types, age and crane size. As a result, the number of crack occurrences were the largest in mast parts, followed by main jib part. Moreover, it was found that turntables were important parts deserved to be noticed at the perspective of safe maintenance.

• The Proceeding of the Korean Institute of Electromagnetic Engineering and Science
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• v.4 no.2
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• pp.4-10
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• 1993

In mobile radio communication, propagation paths are time or spacial varying because of the motion of mobile unit. The propagation path loss not only involves frequency and distance but also the antenna height at both the base station and the mobile unit, terrain configuration, and the man made en- vironment. Thhese additional factors make the prediction of propagation path loss of mobile radio signals more difficult. In this paper, it is measured field strenght of mobile radio signals in Daejeon and Seoul area, also calculated local median, 500m sample mean, and stadard deviation. As the result of analysis, it can be seen that propagation path loss of measured data is similiar to predicted field strength, especially local median is dependent upon base antenna height, terrain configuration and the man-made environment. The standard deviation has been noted to lie between 2 and 10 dBuV.

• Cartoon and Animation Studies
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• s.43
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• pp.1-22
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• 2016

So far, the Studio Ghibli's major masterpieces, and have been studied extensively from mythical and psychological perspectives due to the films' intrinsic symbolism within their characters and events. However, there have been insufficient in-depth research on the types of love the two works have. Therefore, this study will focus on how the types of love in the two animations mirror the concept of love in Plato's theory of Eros through the analysis of two films' characters. The desire for memory and recovery can be seen in , and glimpses of each phase of aim towards changes in physical appearance can be shown in . These describe the function and the purpose of Eros that Plato states in Socrates' terms in Phaedrus and Symposium. Plato ultimately defined Eros as a spirit that leads to the world of Ideas and suggested the five stages of love that are divided in accordance with the ultimate purpose and attitude of mankind towards Eros. The cognition area, changes in appearance of the characters and spatial ranks in and critically reveal such core concepts of the theory of Eros. It is noteworthy that the two works show the origin of the most universal ideology of the West. These two animation films are particularly significant in terms of that they reflect the western epistemology while covering exclusive and covert ethnic emotions.

• Journal of Broadcast Engineering
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• v.17 no.5
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• pp.876-890
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• 2012

In this paper, we investigated the performances of the distributed video codec with adaptive Gray code to apply for frame-difference signal. That is, the best cases and the worst cases were analyzed and compared by considering the statistical characteristics of the frame difference signal in view of the Gray code allocation. Through computer simulations, if 9-bit data for frame difference signal is generated for luminance signal with 8-bit definition and so n-bit is allocated to the quantized coefficient, we were able to find the best method to reduce the virtual channel noise by adding $256+2^{9-n-1}$ to the frame difference signal. Through computer simulation with test video sequences, it was shown that the performance difference between the best cases and the worst cases is larger than about 1.5dB at same rate. It is expected that the results in this paper are applicable for the transform-domain scheme as well as the pixel-domain scheme.

• Journal of Educational Research in Mathematics
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• v.27 no.3
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• pp.391-410
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• 2017

This study aims to analyze mathematically gifted students' characteristics of generalization and justification for a given mathematical task and induce didactical implications for individual teaching methods by students' learning styles. To do this, we identified the learning styles of three mathematically gifted 6th graders and observed their processes in solving a given problem. Paper-pencil environment as well as dynamic geometrical environment using Geogebra were provided for three students respectively. We collected and analyzed qualitatively the research data such as the students' activity sheets, the students' records in Geogebra, our observation reports about the processes of generalization and justification, and the records of interview. The results of analysis show that the types of the students' generalization are various while the level of their justifications is identical. Futhermore, their preference of learning environment is also distinguished. Based on the results of analysis, we induced some implications for individual teaching for mathematically gifted students by learning styles.

• Journal of the Korea Institute of Information and Communication Engineering
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• v.16 no.8
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• pp.1675-1685
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• 2012

DVC (Distributed Video Coding) technique plays an essential role in providing low-complexity video encoder. But, in order to achieve the better rate-distortion performances, most DVC systems need feedback channel for parity bit control. This causes the DVC-based system to have high decoding latency and becomes as one of the most critical problems to overcome for a real implementation. In order to overcome this problem and to accelerate the commercialization of the DVC applications, this paper analyzes an effect of LDPCA frame size for adaptive LDPCA frame-based parity bit request estimations. First, this paper presents the LDPCA segmentation method in pixel-domain and explains the temporal-based bit request estimation method and the spatial-based bit request estimation method using the statistical characteristics between adjacent LDPCA frames. Through computer simulations, it is shown that the better performance and fast decoding is observed specially when the LDPCA frame size is 3168 in QCIF resolution.

• The Journal of the Korea Contents Association
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• v.12 no.8
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• pp.20-28
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• 2012

DVC(Distributed Video Coding) technique is a new paradigm, which is based on the Slepian-Wolf and Wyner-Ziv theorems. DVC offers not only flexible partitioning of the complexity between the encoder and decoder, but also robustness to channel errors due to intrinsic joint source-channel coding. Many conventional research works have been focused on the light video encoder and its rate-distortion performance improvement. However, in this paper, we propose a new DVC codec which is effectively applicable for error-prone environment. The proposed method adopts a quantiser without dead-zone and symmetric Gray code around zero value. Through computer simulations, the proposed method is evaluated by the bit errors position as well as the number of burst bit errors. Additionally, it is shown that the maximum and minimum transmission rate for the given application can be linearly determined by the number of bit errors.

• Journal of the Korean association of regional geographers
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• v.11 no.6
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• pp.620-639
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• 2005

In terms of loan transactions, mortgage volume secured by housing in Korea is the most important market share. Hitherto housing finance policies are treated as a kind of property pricing policy. So it is time to import financial systems on behalf of the mortgage loan consumers like a mortgage broker. A mortgage broker is an intermediary that brings a borrower and a creditor together to obtain a mortgage loan. The broker takes the application, performs a financial and credit evaluation, produces documents, and closes the loan. Especially mortgage brokers present themselves as specifically acting in the interest of the consumer by shopping on behalf of the consumer for the best product that meets the consumer's needs and financial circumstances. The paper investigates the economic role of mortgage broker, foreign systems focused on USA, UK, Japan, and characteristics of Korean housing finance markets. Finally the paper provides policy recommendations about Korean mortgage broker system composed of licensing type, uniform professional practice standard, educational requirements.