• 한국HCI학회:학술대회논문집
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• 2006.02a
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• pp.608-612
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• 2006

3 차원 공간상에서의 상호작용이란 특정 공간내의 오브젝트를 그 위치와 좌표축에 따라 조작하는 행위를 말한다. 이러한 3 차원 공간상의 상호작용을 행할 때 발생하는 가장 큰 문제중의 하나는 사용자가 현재 조작하고 있는 커서 또는 포인터의 깊이적 위치를 알기 힘들다는 점이며 흔히 깊이 지각문제(Depth Perception Problem)으로 불리 운다. 본 논문은 깊이 지각문제를 발생시키는 기본적인 요소중의 하나를 가상환경을 표현하기 위해 인공적으로 생성된 조망 절두체라고 고려하고 이에 대해서 논의한다. 이를 위하여 3 차원 입력 장치(SensAble PHANToM(R) OmniTM)를 이용한 간단한 위치지정 작업을 다양한 FOV(Field of View)와 VD(Viewing Direction)의 환경에서 피실험자들에게 수행하게 하였다. 결과적으로, 작업환경내의 FOV 변화는 작업수행의 정확도에 영향을 끼쳤으며, VD 의 경우, 사용자가 실제로 작업환경을 보는 것과 유사한 VD 환경이 효율성의 측면에서 보다 더 높은 작업수행 결과를 보였다.

• Asia Marketing Journal
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• v.2 no.1
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• pp.1-26
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• 2000

기업환경의 변화로 인하여 정확한 경쟁구조의 파악은 경쟁전략의 수립에 중요한 개념으로 대두되고 있다. 본 연구에서는 소비자중심의 경쟁구조 파악의 중요성을 제기하고 그 일환으로 상황 변수를 고려한 경쟁 구조 분석의 필요성을 제시하고 있다. 또한 구체적인 상황 변수를 파악하기 위한 방법으로 카테고리 수준에서의 경쟁 구조 분석을 제기하고 있다. 이를 위해 음료수 시장을 대상으로 브랜드 수준과 카테고리 수준에서의 지각적 및 상황적 경쟁 구조 분석을 실시하여 그 결과를 비교하였다. 분석 결과, 브랜드 수준에서는 지각적 경쟁구조와 상황적 경쟁구조가 상이하게 나타났고 카테고리 수준에서는 두 경쟁 구조가 상당히 유사한 것으로 나타났다. 이를 통해 소비자들은 음료수 구매와 관련하여 '소비(음용) 상황'이라는 기준에 의해 음료수 제품들을 범주화하는, 즉 소비자들의 기억속에 음용 상황이라는 기준에 의한 스키마가 형성되어 있다고 볼 수 있는 근거를 제시하였다. 카테고리 수준에서의 경쟁 구조 분석을 통하여 마케터는 소비자의 구매행동과 관련한 중요한 상황 변수를 파악할 수 있고, 이렇게 파악된 상황 변수를 토대로 한 경쟁 구조 분석을 실시함으로써 보다 소비자 중심적이며, 안정적인 시장 경쟁 구조의 파악이 가능하다고 본다.

• Journal of Digital Convergence
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• v.16 no.11
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• pp.495-500
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• 2018

This study examined the factors that can enhance the continuity of user experience in multi - device environment. First of all, regarding the structural difference and continuity of tasks, functional differences such as OS difference according to the characteristics of cross media, use of mouse and touch gesture were found to interfere with continuity. To increase continuity, metaphor and ambience To increase relevance and visibility. In the continuity part of visual memory and cognition, familiarity was given by the identity and similarity of visual perception elements, and it was found that familiarity factors are closely related to continuity. Finally, for the continuity of the user experience, we can see that the visibility factors as well as the meaning and layout consistency of the information are factors for the continuity of the user experience. Based on this, it was found that familiarity, consistency, and correlation were significant influences on continuity dimension of user experience, but visibility did not have a significant effect on continuity when regression analysis was conducted as factors of familiarity, consistency, correlation and visibility.

• Journal of the Korean Society of Clothing and Textiles
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• v.35 no.7
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• pp.721-735
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• 2011

This study: 1) identifies differences in consumers' perceived similarity of extended products to their parent product in terms of brand attributes, 2) identifies the influence of the perceived similarity on consumer's attitude toward and purchase intention of extended products (i.e., brand extension effect), and 3) examines the moderating effect of Brand Relationship Quality (BRQ) on brand extension effects. A survey questionnaire was distributed to a convenience sample of individuals aged 20-39. A total of 576 valid responses were used for the final analysis. The results showed that: 1) the consumers perceived more similarity in the extended products when the extended products maintain more consistent attributes with their parent product, 2) the higher the perceived similarity was then the higher the brand extension effect, and 3) brand relationship quality moderated the influence of perceived similarity on attitude and purchase intention. When consumers build a high relationship quality with a brand, then the brand extension effect is likely to be high regardless of the perceived similarity of the extended products. This study consequently has its own contribution in that it empirically examined the brand extension effect in the fashion field and evidenced the role of BRQ in brand extension.

• Economic and Environmental Geology
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• v.29 no.3
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• pp.281-291
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• 1996

Samples of Badwater greenstones from the Crystal Falls terrane in northeastern Wisconsin have been analyzed for major, trace and rare earth elements. Geochemical characteristics of the rocks provide clues to the petrologic character and paleotectonic environment of basaltic magma generation. They have chemical composition typical of continental tholeiites. The low Mg values and abundances of Ni and Cr indicate that the lavas were extensively fractionated prior to extrusion. The variations of incompatible elements suggest that the rocks were affected by interaction with crustal rocks. The samples least affected by contamination have trace element compositions similar to those of T-type mid-ocean ridge basalts. The parent was modified by crustal contamination process and this process shifted the rock compositions to that of continental tholeiites as the rock evolved. Interpretations of the chemical characteristics of the rocks, based on modem analogs, favor their emplacement in an extensional tectonic regime.

• Journal of Advanced Navigation Technology
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• v.15 no.5
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• pp.913-924
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• 2011

This study purpose to find out how the relationship characteristics between travel agencies and airlines affect the conflict. As a result of analysis, competition, specialty, uncertainty of environment, frequency of contact and cooperation from the airline's answers have an effect on conflict while variability of environment, similarity, frequency of contact and specialty from the travel agency's answers are affected. In terms of relationship characteristics and conflict between airlines and travel agencies, competition, similarity, frequency of contact and difference of perception and communication difficulty are affected. The relationship characteristics from the result of this study makes a contribution in reducing conflict and improving positive relationship between airlines and travel agencies.

• Korean Journal of Cognitive Science
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• v.14 no.4
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• pp.53-63
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• 2003

We analyzed the relationships between facial impressions and physical features, and investigated the effects of impressions on facial similarity judgments. Using 79 faces extracted from a face database, we collected the ratings of impressions along four dimensions -mild-fierce, bright-dull, feminine-manly and youthful-mature- and the measures of 41 physical features. Multiple Regression Analyses showed that the ratings of impressions and the measures of features are closely connected with each other. Our experiments using facial similarity judgments confirmed the possibility that facial impressions are used in processing of facial information. We found that people tend to perceive faces as similar when they have the same impressions rather than neutral ones, although all of them are alike physically. These results imply that facial impressions are used as a psychological structure representing facial appearance, and that facial processing includes impression information.

• The Journal of the Acoustical Society of Korea
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• v.41 no.1
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• pp.99-107
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• 2022

This study attempted to analyze the consonant perception ability and errors and to verify compatibility items for hearing impaired children wearing hearing aids and cochlear implants using the Phoneme Perception Test for School-Aged children (PPT-S). As a result of the study, it was found that children with hearing impairments have more difficulty in perceiving final consonants than initial consonants. The hard type of PPT-S, in which the articulation method and articulation place of the target and foil words are similar, felt more difficult than the easy type. Among the initial consonants, the incorrect response rate for aspiration sound was higher. In the case of final consonants, the incorrect answer rate for 'ㄷ' and 'ㅁ' was relatively higher. There was no significant difference in the percentage of correct response rate according to the gender of the speaker. The above results can be usefully used as basic data for standardizing of PPT-S and evaluating the intervention effects before and after hearing rehabilitation with hearing impaired children.

• Journal of Advanced Navigation Technology
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• v.13 no.2
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• pp.257-261
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• 2009

This paper propose a new method using Gestalt theory to extract image contour. The proposed method use Gestalt theory based on proximity, similarity and continuation for grouping objects from image segmentation. It use downward feedback and perception to materialize one visual level in image from heterogeneity visual levels in image. The experimental result show that the proposed method achieves better performance than other methods.

• Proceedings of the Korea Water Resources Association Conference
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• 2008.05a
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• pp.933-937
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• 2008

유사(sediment)란 지각의 풍화작용에 의해 생성되어 유수나 바람 등에 의해 침식, 이송, 퇴적된 물질을 말하며, 일반적으로 하천유사(fluvial sediment)를 말한다. 유사의 크기는 작게는 미세한 점토입자부터 크게는 자갈에 이르기까지 매우 다양하며, 하천에서의 소류사량과 부유사량을 포함한 총유사량의 추정은 하천유사 문제의 기본이며 하천내의 수리구조물의 설계 및 유지관리, 하천개수 및 하도의 안정, 홍수터 관리, 저수지의 설계 및 운영 등 수자원 개발 및 관리를 위한 하천계획에 필요한 기본적 요소 중 하나이다. 본 연구에서는 중소하천에서의 실측을 통한 유사산정을 위해 대상하천에서 각 유량에 따른 부유사를 채취하여 시료분석을 통한 결과와 대상하천의 수리특성을 분석하여 총유사량의 산정 및 분석을 하였다. 이를 위하여 대상하천에 대하여 알맞은 측정조사지점을 선정하여 15회에 걸쳐 현장측정을 시행하였으며, 현장 측정시 유량측정을 위한 수위 및 유속을 측정하였고, 부유사농도 및 부유사입도분석을 위한 시료를 채취하여 실내 실험시 SS분석 및 BW관 분석을 시행하였다. 대상하천의 현장실험 측정성과와 수리특성을 기초자료로 하여 각 회차에 걸친 총유사량의 산정을 하였으며, 총유사량의 산정은 총유사량 추정 방법들인 직접 실측에 의한 방법, 간접계산에 의한 방법, '실측+계산'에 의한 방법 중 신뢰도가 높으며 경제성이 높은 '실측+계산'에 의한 방법과 간접계산에 의한 방법을 사용하는 공식으로 산정하였다. 결과들의 비교와 대상하천의 수리특성들에 대한 연구를 통해 적정공식을 선정하고 공식의 선정 원인에 대한 연구를 시행하였다.