• 한국의류학회지
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• 제23권2호
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• pp.230-241
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• 1999

The purpose of this study was to investigate the purchasing behavior of adolescent consumer groups divided by their brand orientation. Questionnaires were administered to 507 middle and high school students who resided in Kwang-ju between September 22-27 1997. Data were analyzed by factor analysis cluster analysis ANOVA Duncan-test frequency and {{{{ chi ^2 }}-test. The results were as follows : 1. Adolescent consumers were classified by three groups ; brand attached groups : brand attached group (Group I) brand interest group (Group II) and brand indifference group (Group III) according to their brand orientation. 2. There were significant differences among groups in using information sources : Group II used more sources of information than the other two groups. 3. As evaluating attributes of product Group I considered brand prestige most important Group II considered design fashionablity imfortant orderly and Group III considered pricemost important. 4. Group I patronised expensive brand chain stores Group II patronseied department stores and Group III prefered independently owned cheaper priced retailers. 5. The apparel purchasing price range was higher for Group I and became lower for Group II Group III.

• 전기학회논문지P
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• 제62권4호
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• pp.192-197
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• 2013

Road traffic noise barriers being used to reduce the noise, but the city surroundings inhibition, ecosystem disturbance, and it is difficult to maintain. Can enhance or complement the existing noise barrier performance, so that it is necessary to develop an electronic noise-reduction system In this paper, we proposed an electronic road noise reduction devices to reduce road noise for a DSP-based signal processing and analog signal input-output controller. In order to verify the control performance, we performed noise reduction experimentation of ANC by filtered-X LMS algorithm and traffic noise signal injection. The controller is equipped with noise reduction algorithms were tested on the characteristics of directional and omnidirectional speaker.

• 대한전기학회:학술대회논문집
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• 대한전기학회 2003년도 학술회의 논문집 정보 및 제어부문 B
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• pp.765-768
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• 2003

금속이나 암석에 음각(陰角)으로 각인된 문자나 그림들은 날씨나 주변 빛 환경에 따라 시각으로 입력되는 정보에 큰 차이를 보인다. 이를 이미지검출장치를 통해 읽어드려 디지털 이미지 신호로 만들고자 할 때는 더욱 그 정도가 심하여 대상체가 위치하는 빛 환경이나 검출기 특성에 각별한 신경을 써야한다. 자연광이나 전구 그리고 기후나 날씨에 의해 조성되는 빛 환경은 조도(照度), 조사각도(照射角度), 그림자 및 대상체 표면 상태 등이 중요한 결정 인자들이다. 빛 환경이 디지털 이미지 질(質)에 끼치는 영향을 최소화하기 위한 실험실 차원의 빛환경조정실을 구축하였다. 외부 유입 광선을 모두 차단하고 지향성이 있는 조명에 의해서만 대상체에 빛이 조사되도록 하고 디지털 카메라로 대상체의 이미지를 담았다. 음각 문자를 새긴 샘플석문(石文)을 제작하고 실험실 안의 정량화된 빛환경 하에서 석문의 이미지를 취득하였다. 전처리 과정을 통해 노이즈를 제거하고 이미지의 질을 향상시켰다. 처리된 이미지를 분석하여 문자영역과 바탕영역의 신호패턴을 추출한 다음 룩업 테이블, 조도 레벨 슬라이징, 중첩의 원리 및 Morphology 등의 기법을 알고리즘화하여 2진 형태의 음각문자를 판독 및 복원하는데 성공하였다.

• 대한원격탐사학회:학술대회논문집
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• 대한원격탐사학회 2000년도 춘계 학술대회 논문집 통권 3호 Proceedings of the 2000 KSRS Spring Meeting
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• pp.125-130
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• 2000

본 논문에서는 2 안테나 합성 개구 마이크로파 방사계에 있어서 최적의 출력 지향 특성을 얻기 위한 안테나 구성방법에 관하여 검토하였다. 지향 특성이 서로 다른 4 종류의 안테나를 이용한 4가지 구성법의 각각에 있어서 출력의 지향성을 수치계산으로 구하여 주 빔폭, 부 로브의 레벨 및 위치 등을 서로 비교 고찰함과 동시에 그 원인에 대해서도 분석하였다. 개구면의 전류분포가 균일한 안테나로 구성한 경우가 다른 3 종류의 경우보다 아주 우수한 지향 특성을 나타내었다. 특히 부 로브 레벨 및 빔 효율 면에서 현저한 차가 있었다.

• 한국소음진동공학회:학술대회논문집
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• 한국소음진동공학회 2005년도 추계학술대회논문집
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• pp.240-243
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• 2005

A design procedure using spatial Fourier transform is presented for a structural-acoustic coupled radiator that can emit sound in the desired direction with high power and low side lobe level. The design procedure consists of three steps. Firstly, the structural-acoustic coupled radiator is chosen to obtain strong coupling between structural vibration and acoustic pressure. The radiator is composed by two spaces which are separated by a wall. Spaces can be categorized as reverberant finite space and unbounded semi-infinite space, and the wall are composed of two plates and an opening. The velocities on the wall are predicted. Secondly, directivity and energy distribution of radiator are predicted in wave number domain using spatial Fourier transform. Finally, optimal design variables are calculated using a dual optimal algorithm. Its computational example is presented including the directivity and resulting pressure distribution using proposed procedure.

• 한국소음진동공학회:학술대회논문집
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• 한국소음진동공학회 2004년도 추계학술대회논문집
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• pp.751-754
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• 2004

This paper presents a design of the directional radiation pattern by using the structural-acoustic interaction. For this purpose, prediction of the pressure distribution of the field points and radiation pattern of the structural-acoustic coupling system is shown. In order to get a strong coupling, coupled system that has a finite space and a semi-infinite space separated by two flexible walls and an opening is selected. A volume interaction can be occurred in structure boundary and a pressure interaction can be happened in the opening boundary. The coupled system is maximized the radiation power on the main axis and minimized the side lobe level.

• 한국소음진동공학회:학술대회논문집
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• 한국소음진동공학회 2004년도 추계학술대회논문집
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• pp.782-785
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• 2004

In the Well-being age, many people use a city park for rest deeply think and constitutional walk. The city park is located at near side by traffic road in urban. Citizens are not satisfied with it's fuction as a haven of peace due to road traffic noise. Thus, this study is for a research on the actual noise condition of a city park in Nowon go. This study uses a prediction method called ASJ-model in order to calculate PWLs of road traffic noise. Using calculated PWLs, noise levels in a park are predicted and compared with measured values.

• 한국정보처리학회:학술대회논문집
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• 한국정보처리학회 2000년도 제13회 춘계학술대회 및 임시총회 학술발표 논문집
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• pp.984-989
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• 2000

최근 주목을 받고 있는 자바는 객체지향성을 가장 잘 반영한 언어이며 많은 연구 분야에서 사용되고 있지만 기존의 테스팅 도구들이 대부분 C++을 기본 대상 언어로 사용하기 때문에 자바에 적용하기 위한 테스팅 방법과 도구들이 부족한 것이 현실이다. 때문에 기존의 테스팅 도구들에 자바 프로그램을 적용하기는 까다로운 일이 아닐 수 없다. 본 논문에서는 기존에 연구되어진 객체지향 소프트웨어 메트릭스들을 자바에 적용하는 방법과 자바에 적용할 수 있는 새로운 메트릭스들과 자바프로그램의 구조를 보다 쉽게 파악하기 위한 분석지원 도구의 설계 및 구현에 대하여 연구하였다.

• 방사선산업학회지
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• 제9권1호
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• pp.37-46
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• 2015

This study examines mutual perceptions between general public and nuclear plant employees on understanding nuclear policy communication applying the co-orientation model. The total of 414 responses were analyzed including 211 of the general public and 203 of plant employees. Results indicate that agreement between general public and plant employees is relatively high, in that general public tends to have negative evaluation to nuclear policy communication, but plant employees tends to have positive one. In terms of congruence, general public perceive that plant employees might have more positive evaluation than themselves, and nuclear plant employees perceive that general public might have more negative evaluation than themselves. Finally, in terms of accuracy, general public accurately estimate how nuclear plant employees perceive on policy communication, whereas nuclear plant employees unaccurately estimate how general public perceive on policy communication.

• 한국항만경제학회지
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• 제18권2호
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• pp.91-108
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• 2002

The World has been rapidly changing into either technological aspects or perception of those who has utilised to the corresponding informational impact. Whatever areas we have actually been involved in are strongly connected with this evolution of informational technology in one way or another. Logistics is not a exception as well as trade. Two main routes in distribution channel such as commercial and physical flow of goods, have been operating in terms of I-business. In order to activate E-trade with E-commerce, E-logistics should be utilised and emphasized in more efficient and effective manner of doing job as a facilitator. So, in this paper, it studied the role of E-logistics to make E-trade better work as well as to look into present situations in E-commerce. Then, it was identified that some facilities as 3PL or shipping company have to adopt information in their business process with a view of valued add service providers. This means those who have implemented E-Logistics activities, should be more competitive in the market, only when they provide the value-added total logistics services.