• 대한교통학회지
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• 제29권6호
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• pp.75-83
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• 2011

본 연구에서는 항공화물 서비스 경쟁력 평가 요소 및 중요도를 결정하고, 실제 항공화물 운송사에 대한 서비스 품질을 평가하고자 한다. 항공화물 서비스에 대한 평가 대상을 Skyteam의 주요 화물 서비스 상품인 Equation Heavy, Equation, Variation, Dimension로 정하였고, 이 서비스 상품에 대한 품질 평가를 실행하였다. 본 분석은 전문가 설문 조사, AHP 및 퍼지적분(Fuzzy Integral) 등의 방법론들을 적용하였고, 선행 연구와 전문가 인터뷰, 그리고 요인분석을 통해 주요 평가요소를 추출하여 서비스 품질 평가모형을 구축하였다. 주요 평가요소는 인프라, 신뢰성, 신속 대응성, 경제성, 안전성 요소 등을 설정하였다. 이 다섯 가지 요소를 바탕으로 하여 수게노(Sugeno)가 제안한 퍼지 적분 방법론에서 파생된 알고리즘을 적용하여 최종으로 화물 서비스 품질을 분석하였다.

• 디자인학연구
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• 제16권2호
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• pp.77-86
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• 2003

웹(Web) 환경에서 우리들은 유용한 정보를 대부분 시각을 통하여 접하고 있다. 아이콘은 정보를 탐색하는 경로로 정보를 시각적으로 받아들이는 사용자들을 위하여서는 명확하고 신속하게 전달할 수 있는 아이콘 디자인이 필요하다 아이콘에 관한 연구는 시스템 환경이나, 유형 그리고 사용자의 특성에 따라 활발하게 전개되어 있다. 본 연구는 아이콘 유형 중 메타포어 아이콘(Metaphor Icon)에 관한 것으로 메타포어 아이콘 특성상 사용자의 연상작용에 의한 것이며 유사성을 판별하기 위하여 은유와 직유를 구분하여 웹에서 검색된 메타포어 아이콘을 분석하였다. 기능의 인지여부를 설문하여 인지현황을 알아보았다. 또한 아이콘 디자인 구성요소가 사용자의 인지도에 영향을 미치는지를 아이콘을 시각적으로 비교하여 인지도를 알아보았다. 비교분석 한 결과 구성요소에 따라 인지도는 큰 차이를 보였고 이를 좀더 객관화하기 위하여 구성요소를 설문한 결과 재입증되었다. 따라서 본 연구 결과를 요약할 때 메타포어 아이콘은 시각적으로 기능과 디자인 구성요소가 유사성을 가질때 인지도가 비례한다는 것이다. 사용자들의 인지도를 향상시키기 위해서는 기능을 구체화시키는 구성요소로 디자인하는 방안을 제시하고자 한다.

• 수산해양기술연구
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• 제45권3호
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• pp.177-187
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• 2009

This paper describes a automatic video surveillance system(AVSS) with long range and 360$^{\circ}$ coverage that is automatically rotated in an elevation over azimuth mode in response to the TTM(tracked target message) signal of vessels tracked by ARPA(automatic radar plotting aids) radar. This AVSS that is a video security and tracking system supported by ARPA radar, CCTV(closed-circuit television) camera system and other sensors to automatically identify and track, detect the potential dangerous situations such as collision accidents at sea and berthing/deberthing accidents in harbor, can be used in monitoring the illegal fishing vessels in inshore and offshore fishing ground, and in more improving the security and safety of domestic fishing vessels in EEZ(exclusive economic zone) area. The movement of the target vessel chosen by the ARPA radar operator in the AVSS can be automatically tracked by a CCTV camera system interfaced to the ECDIS(electronic chart display and information system) with the special functions such as graphic presentation of CCTV image, camera position, camera azimuth and angle of view on the ENC, automatic and manual controls of pan and tilt angles for CCTV system, and the capability that can replay and record continuously all information of a selected target. The test results showed that the AVSS developed experimentally in this study can be used as an extra navigation aid for the operator on the bridge under the confusing traffic situations, to improve the detection efficiency of small targets in sea clutter, to enhance greatly an operator s ability to identify visually vessels tracked by ARPA radar and to provide a recorded history for reference or evidentiary purposes in EEZ area.

• Geomechanics and Engineering
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• 제11권3호
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• pp.439-455
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• 2016

This paper presented solutions of displacement and stress for a circular opening which is reinforced with grouted rock bolt. It satisfies the Mohr-Coulomb (M-C) or generalized Hoek-Brown (H-B) failure criterion, and exhibits elastic-brittle-plastic or strain-softening behavior. The numerical stepwise produce for strain-softening rock mass reinforced with grouted rock bolt was developed with non-associative flow rules and two segments piecewise linear functions related to a principle strain-dependent plastic parameter, to model the transition from peak to residual strength. Three models of the interaction mechanism between grouted rock bolt and surrounding rock proposed by Fahimifar and Soroush (2005) were adopted. Based on the axial symmetrical plane strain assumption, the theoretical solution of the displacement and stress were proposed for a circular tunnel excavated in elastic-brittle-plastic and strain-softening rock mass compatible with M-C or generalized H-B failure criterion, which is reinforced with grouted rock bolt. It showed that Fahimifar and Soroush's (2005) solution is a special case of the proposed solution for n = 0.5. Further, the proposed method is validated through example comparison calculated by MATLAB programming. Meanwhile, some particular examples for M-C or generalized H-B failure criterion have been conducted, and parametric studies were carried out to highlight the influence of different parameters (e.g., the very good, average and very poor rock mass). The results showed that, stress field in plastic region of surrounding rock with considering the supporting effectiveness of the grouted rock bolt is more than that without considering the effectiveness of the grouted rock bolt, and the convergence and plastic radius are reduced.

• 유통과학연구
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• 제10권1호
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• pp.11-22
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• 2012

The traditional market in the nation was forced to decrease greatly users as well as sales because of opening of all of the markets, Internet shopping mall, home shopping and other new types of marketing businesses to lose market functions remarkably. Therefore, the Agency for Traditional Market Administration of Small & Medium Business Administration made efforts to develop traditional market, for instance, modernization of the facilities to improve physical environment, and improvement of each shop by using VMD, and so on. The purpose of the study was to examine efficiency of VMD shops for development of traditional market by the Agency for Traditional Market Administration and effects of VMD upon sales of each shop, and to help establish VMD strategies for customer satisfactions as well as visual environment of traditional market. The author visited five shops at Busan Jin Market, special market of articles for wedding ceremony that joined VMD shop guide of traditional market, and taught VMD on-the-spot and investigated it. Questionnaire of Agency for Traditional Market Administration was used to interview shop owners, shopkeepers and consumers, etc and to examine factors of changes of sales and customers' satisfactions before and after VMD. The purpose of the study was to investigate effects and satisfactions of increase of the sales of VMD shop guide that the government promoted to develop traditional market so far. Therefore, the author investigated VMD presentation, increase of the sales before and after VMD presentation, increase of number of customers, and satisfactions, etc of Korean clothes shops that joined improvement of VMD shop guide of traditional market of the government in 2010. The author investigated effects of the sales, increase of customers and satisfactions, etc by case study and empirical analysis, and she presented user-oriented VMD presentation techniques of traditional market and suggested improvement. After applying VMD, the shops could increase sales more than 20 percent in average, and satisfaction of VMD presentation was more than 88 points or more to be very much high. This study suggested VMD strategies and presentation of traditional market to give consumers affirmative visual images and to develop traditional market.

• 한국정보과학회논문지:시스템및이론
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• 제36권2호
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• pp.60-67
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• 2009

단백질 상호작용 네트워크는 어떤 단백질들 간에 상호 작용 관계가 있는지를 네트워크 형태로 나타낸 것이며 단백질 상호작용을 발견하거나 분석하는 것은 생명 공학에서 중요한 연구분야이다. 본 논문에서는 방대한 단백질 상호작용 데이터를 유전자 온톨로지와 연계한 시각화를 통하여 효과적으로 직관을 얻을 수 있는 효율적인 단백질 상호작용 네트워크 분석시스템을 다룬다. 단백질 상호작용 네트워크는 데이터 양이 매우 방대하기 때문에 이를 효율적으로 분석하는 방법과 효과적인 시각화 기법이 요구된다. 본 연구에서는 이를 위하여 동적이고 상호작용 가능한 그래프와 관심 노드와 그 주변 노드를 표시하며 점진적으로 탐색할 수 있는 컨텍스트 기반 탐색 기법을 도입하였다. 이 밖에도 특화된 기능으로써 단백질 상호작용과 유전자 온톨로지 간의 빠르고 자유로운 상호참조 기능과 최소 공통 조상을 사용한 유전자 온톨로지 분석 기능 등을 지원한다. 인터페이스 측면에서는 상호참조 기능을 효과적으로 사용하게 하기 위하여 유전자 온톨로지 그래프와 단백질 상호작용의 시각화 결과를 2차원 윈도우로 나란히 보여주는 인터페이스를 디자인 하였다.

• Computers and Concrete
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• 제12권2호
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• pp.211-228
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• 2013

The structure analyzed in this paper has particular building style and special structural system. It is a rigid-connected twin-tower skyscraper with asymmetrical distribution of stiffness and masses in two towers. Because of the different stiffness between the north and the south towers, the torsion seismic vibration is significant. In this paper, in order to study the seismic response of the structure under both frequent low-intensity earthquakes as well as rare earthquakes at the levels of intensity 7, the analysis model is built and analyzed with NosaCAD. NosaCAD is an nonlinear structure analysis software based on second-development of AutoCAD with ObjectARX. It has convenient modeling function, high computational efficiency and diversity post-processing functions. The deformations, forces and damages of the structure are investigated based on the analysis. According to the analysis, there is no damage on the structure under frequent earthquakes, and the structure has sufficient capacity and ductility to resist rare earthquakes. Therefore the structure can reach the goal of no damage under frequent earthquakes and no collapse under rare earthquakes. The deformation of the structure is below the limit in Chinese code. The time sequence and distribution of damages on tubes are reasonable, which can dissipate some dynamic energy. At last, according to forces, load-carrying capacity and damage of elements, there are some suggestions on increasing the reinforcement in the core tube at base and in stiffened stories.

• 한국콘텐츠학회:학술대회논문집
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• 한국콘텐츠학회 2007년도 추계 종합학술대회 논문집
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• pp.639-643
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• 2007

본 논문에서는 증강현실 기반의 실시간 멀티유저 보드게임 및 어플리케이션 개발에 적합한 소프트웨어 프레임웍을 제안한다. 최근 휴대폰, PDA, UMPC 등 모바일기기의 컴퓨팅 능력 향상 및 무선 네트워킹 기술의 발달로 증강현실 기반의 게임을 플레이할 수 있는 환경이 확산되고 있다. 그러나 이 같은 게임 환경을 활용하려는 연구가 증가하는 추세지만 게임 유저들의 관심을 이끌어 낼 수 있는 콘텐츠 수는 부족한 실정으로 양질의 증강현실 게임 콘텐츠를 효과적으로 개발할 수 있는 개발 지원 도구의 필요성이 대두되고 있다. 논문에서 제안하는 프레임워크는 기존 게임 콘텐츠 개발자도 기술 장벽 없이 신속하게 증강현실 기반 게임 콘텐츠 개발이 가능하도록 구성되어 있다. 증강현실 기술에 대한 이해가 부족한 콘텐츠 개발자가 내부 프로세스 구조를 몰라도 프레임워크에서 제공하는 마커 인식 서비스를 통해 가상객체를 다양한 방법으로 증강 할 수 있도록 자동화된 프로세스를 제공한다. 또한 보드게임에 활용될 수 있는 전문적인 기능과 다양한 상호작용 인터페이스를 지원하고 보드게임 요소들을 쉽게 구현할 수 있는 구조를 제공함으로써 완성도 높은 증강현실 보드게임 개발이 가능하다.

• 대한의용생체공학회:학술대회논문집
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• 대한의용생체공학회 1997년도 춘계학술대회
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• pp.150-155
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• 1997

Modelling and Simulation of the activation process for the myocardium is meaningful to understand special excitation conduction system in the heart and to study cardiac functions. In this paper, we propose two dimensional cellular automata model for the activation process of the myocardium and simulated by means of discrete time and discrete event algorithm. In the model, cells are classified into anatomically similar characteristic parts of heart; SA node, internodal tracks, AV node, His bundle, bundle branch and four layers of the ventricular muscle, each of which has a set of cells with preassigned properties, that is, activation time, refractory duration and conduction time between neighbor cell. Each cell in this model has state variables to represent the state of the cell and has some simple state transition rules to change values of state variables executed by state transition function. Simulation results are as follows. First, simulation of the normal and abnormal activation process for the myocardium has been done with discrete time and discrete event formalism. Next, we show that the simulation results of discrete time and discrete event cell space model is the same. Finally, we compare the simulation time of discrete event myocardium model with discrete time myocardium models and show that the discrete event myocardium model spends much less simulation time than discrete time myocardium model and conclude the discrete event simulation method Is excellent in the simulation time aspect if the interval deviation of event time is large.

• 시큐리티연구
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• 제8호
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• pp.65-83
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• 2004

In modern society, the enterprises or the public organization have devised consistent means and methods with keen competition in high intelligence, high specialization and high competition for surviving in the struggle for existence. In the rapidly changing modern society like that, guard services are not free any more in the simple business. It will be survived only with consistent self-development and various abilities. Recently, it is on a trend that the enterprise including venture business requires the man of ability having many-sided thought, knowledge and capacity. That is, the era of a man with multi-function has come. The guards engaged in their present posts have to make efforts self-development consistently. And they have to work for self-development with theoretical knowledge acquirement about the expert knowledge escaping from simple function and business. The constitution including universities that train the guard should not adjust to the demand of quantitative manpower required in the enterprise organization with the training of the guard with simple functions only. It needs settlement as a curriculum with technology like ideology and knowledge breaking from short curriculum centered on function only in order to come to stay the recognition about guard services as expert services that the industrial society requires. The education centered on simple function should be replaced in the use of a high school, private academy and special guard institution. In addition, it requires a quality as the auxiliary, division, decision-making and spokesman according to the business role. Also, it requires the martial arts capacity, the communicative capacity, the sports or reports capacity, the guard driving capacity, the policy and assistant capacity and the information and analysis capacity, etc in individual. Lastly, it need each guard's change of cognition most of all. As part of the guard's adaptive plan according to the social change, it was enumerated like the mentioned above. It is important for the guard to prepare for the change of era and to build up quality and capacity before anything else.