• Nuclear Engineering and Technology
• /
• 제31권3호
• /
• pp.344-363
• /
• 1999

A multi-dimensional thermal-hydraulic system analysis code, MARS 1.3.1, has been developed in order to have the realistic analysis capability of two-phase thermal-hydraulic transients for pressurized water reactor (PWR) plants. As the backbones for the MARS code, the RELAP5/MOD3.2.1.2 and COBRA-TF codes were adopted in order to take advantages of the very general, versatile features of RELAP5 and the realistic three-dimensional hydrodynamic module of COBRA-TF. In the MARS code, all the functional modules of the two codes were unified into a single code first. Then, the source codes were converted into the standard Fortran 90, and then they were restructured using a modular data structure based on "derived type variables" and a new "dynamic memory allocation" scheme. In addition, the Windows features were implemented to improve user friendliness. This paper presents the developmental work of the MARS version 1.3.1 including the hydrodynamic model unification, the heat structure coupling, the code restructuring and modernization, and their verifications.their verifications.

• 한국군사과학기술학회지
• /
• 제16권5호
• /
• pp.666-674
• /
• 2013

This paper studied about the design and implementation of tactical communication network simulator in order to obtain tactical communication network parameter, such as link capacity and routing plan, and a number of exceptional cases that may occur during actual deployment by conducting simulation of a large-scale tactical communication networks. This tactical communication network simulator provides equipment models and link models of commercial OPNET simulator for tactical communication network. In addition, 6 types of simulation scenario writings convenience functions and traffic generation models that may occur in situations of tactical communication network environment were implemented in order to enhance user friendliness. By taking advantages of SITL(System-In-The-Loop) function of OPNET, the tactical communication network simulator allows users to perform interoperability test between M&S models and actual equipment in operating simulation of tactical communication network, which is run on software. In order to confirm the functions and performance of the simulator, small-scale of tactical communication network was configured to make sure interoperability between SITL-based equipment and a large-scale tactical communication network was simulated and checked how to cope with traffic generated for each network node. As the results, we were able to confirm that the simulator is operated properly.

• 한국자동차공학회논문집
• /
• 제10권5호
• /
• pp.214-222
• /
• 2002

Computer simulations are widely used to analyze passenger safety in simulated traffic accidents. ATB, Articulated Total Body, is a computer simulation model developed to predict gross human body response to such dynamic environments as vehicle crashes and pilot ejections. ATB, whose code is open, has high flexibility and application capability that users can easily insert defined modules and functions. ATB is, however, inconvenient as it was coded in FORTRAN and it needs a formated input file. Moreover, it takes much time to make input files and to modify coding errors. This study aims to increase user friendliness by adding a preprocessor program, WINATB(WINdows ATB), to the conventional ATB. WINATB, programmed in Visual C＋＋ and OpenGL, uses ATB IV as a dynamic solver. The preprocessor helps users prepare input files through graphic interface and dialog box. An additional postprocessor makes the graphical presentation of simulated results. In these case of the frontal crash, the rear impact and the side impact, the simulation results obtained by WINATB and MADYMO(MAthematical Dynamic Model) are compared to validate the effectiveness of WINAIB.

• 한국콘텐츠학회:학술대회논문집
• /
• 한국콘텐츠학회 2007년도 추계 종합학술대회 논문집
• /
• pp.846-848
• /
• 2007

최근 웹 2.0에 대한 관심이 높아지면서 대부분의 웹 사이트에서 RSS를 지원하고 있다. RSS 구독기는 여러 웹 사이트에서 제공되는 RSS 포맷의 콘텐츠를 한곳으로 수집하여 사용자가 해당 웹 사이트를 직접 방문하지 않고도 관심분야의 최신 정보를 얻을 수 있도록 도와주는 소프트웨어 어플리케이션이다. 본 논문에서는 RSS 구독기의 구현을 위하여 비동기 방식인 Ajax와 동적 스크립트 언어인 JSP/Servlet을 이용해서 개발하였다. RSS 포맷 1.0과 2.0대를 지원할 수 있게 하였고, 유동적인 Ajax기반 메뉴들과 카테고리 항목 및 사용자 편의를 생각한 기능들을 추가하여 개발하였다.

• 한국도서관정보학회지
• /
• 제46권4호
• /
• pp.1-20
• /
• 2015

이 연구는 문화기반시설인 공공도서관의 지역문화발전 기여전략을 제시하는데 목적이 있다, 이를 위하여 먼저 공공도서관이 수행하는 업무와 지역문화발전의 상의적 수수관계를 바탕으로 기여도를 평가하고 한계를 적시하였다. 이어 공공도서관과 밀접한 지역문화를 지식문화, 독서문화, 학습문화, 대중문화, 여가문화로 구분하고 이들의 발전과 진흥을 위한 공공도서관의 기여전략(장서개발과 이용서비스 중심의 핵심역량 제고, 디지털 정보해득력 교육 지원기능 강화, 독서생활화를 위한 독서촉진과 저변확대, 평생학습(문화)프로그램 제공서비스의 최적화, 시설 공간의 개방화 및 친숙성 증대, 지역 유관기관과의 연계 협력사업 확대)을 제안하였다.

• 복식문화연구
• /
• 제18권3호
• /
• pp.452-464
• /
• 2010

The purpose of the study was to give a help in making a successful expansion of fashion brand by making a close inquiry into an effect of the main brand in fashion brand on an image of the second brand and into an effect of satisfaction and loyalty for main brand on satisfaction and loyalty for the second brand. The study made a survey of the total eight brands including four main brands and each second brand, and used 217 questionnaires. The results of this study are as follows. First, The main brand image and second brand image did not match. Second, the satisfaction of the main brand affected the satisfaction of their second brand, especially in the main brand of the image, design, user experience, staff friendliness, variety of products and brands on display. Third, the ranking of main brand loyalty and the ranking of second brand loyalty were different. All the main brand loyalty had a significant effect on the second brand. The consumers who preferred the main brand had a high confidence and a strong tendency to repurchase.

• 한국컴퓨터정보학회논문지
• /
• 제19권1호
• /
• pp.1-8
• /
• 2014

최근 사용자의 편의성과 안정성을 향상시키기 위해, 자동차 기술과 IT 기술을 접목한 지능형 자동차 개발에 많은 관심이 모아지고 있는데, 그 대표적인 기능으로 무인 자율주행과 스마트 크루즈 컨트롤이 있다. 지능형 자동차는 설계 및 구현 시 자동차가 요구하는 실시간 제약 조건을 만족하는 것이 매우 중요하다. 본 연구에서는 무인 자율주행과 스마트 크루즈 컨트롤 기능을 모형차량에 구현하고, 이에 적합한 실시간 스케줄링 알고리즘을 연산 복잡도가 낮고 구현이 간단한 순환실행체제를 이용하여 설계하였다. 또한 모의실험을 통하여 실제 시스템으로의 적용 가능성을 입증하였다.

• 가족자원경영과 정책
• /
• 제12권1호
• /
• pp.91-105
• /
• 2008

This study identifies key determinants and types of participation in UCC Services. The research examines the how the major factors in perception of social presence, fun and entertainment, self-expression, arousal, human relations, positive feedback, information sharing, monetary business opportunity, and user friendliness of web structure contribute to participation in UCC Services. The data used in this study were collected by a web-based survey so that 629 internet users were available for analysis. Some of the practical implications of the results are follows. We have categorized that the type of people participating in UCC Services were readers, modifiers, remixers, and creators. Digital consumers directly connected with other consumers by producing their own digital contents. Multiple regression analysis among the creators group was not included due to small sample size. Self expression, fun and joy and the convenience of the web interface showed strong positive significant impacts on the UCC Service participation of all participation types. Information sharing, other's positive reputation and arousal showed a positive significant impact on the modifiers or remixers type groups. Monetary business opportunity and human relations were not significant in any UCC type group.

• 대한가정학회지
• /
• 제39권12호
• /
• pp.51-63
• /
• 2001

With the development of information technology, more and more internet sites are available to consumers. Increasing on the interests of diet and health in modem society, there are numerous internet sites dealing with food, nutrition and health. Considering the importance and expected roles of internet sites in information dissemination in the future world, it is important to put more efforts to encourage internet sites with more accurate an useful information. Up to present, not much work has been done on quality analysis and evaluation of the internet information. This study aimed to develop a model to evaluate and rank the internet information according to its quality so that consumers can be guided toward correct information source. Three models were adapted from the literature for pilot study to develop a model suitable for evaluation of contents of sites related to food and nutrition information. From the pilot study, a evaluation model was developed with criteria more relevant to Korean internet site by expert panel. Evaluation criteria of the model is authority, accuracy, objectivity, coverage, and user-friendliness. For the objective and systematic evaluation, scores were assigned totaling maximum 100 point to each evaluation criteria factors. The model developed in this study could be used as one for other internet sites in area other than food and nutrition.

• 정보관리학회지
• /
• 제28권3호
• /
• pp.275-293
• /
• 2011

정보기술과 정보환경의 변화에 따라 인터넷 상에서 필요한 정보를 종합적으로 제공하는 포털서비스가 점점 일상화, 대중화 되어가고 있는 현실에서 정보의 제공과 유통을 담당하는 도서관이 포털서비스를 제공하는 것은 지극히 당연한 일이다. 이에 본 연구는 도서관 포털서비스의 이해를 높이기 위하여 국가디지털도서관인 디브러리 포털서비스를 메인포털, 지역정보, 정책정보, 다문화정보, 장애인정보, 디브러리 블로그로 나누어 그 구성과 콘텐츠를 조사 분석하였다. 그 결과 디브러리 포털서비스를 더욱 확산시키고 활성화하기 위해서 제공되는 디브러리 포털서비스의 최신성, 정확성, 유용성과 이용용이성, 홍보와 진흥 등이 강조되었다.