• 한국멀티미디어학회논문지
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• 제20권3호
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• pp.571-580
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• 2017

Recently, there are many communication softwares based on text on various smart devices. Unlike traditional print publishing, mobile publishing and SNS tools tends to utilize more decorative or more emotional fonts so that users can pass some feelings from contents. So font providers have released new fonts which deal with the requirements of the market. Nevertheless being released lots of new fonts, general users have not used them because they searched only by font name or font provider's name. It means that there is no way for users to know and find new things. In this study, we suggest font shape classification rules for font registration system based on font design features. We proved the validity of classification standard study through some experiments with 50 commercial fonts. Also the result of this study was provided for Korea Telecommunication Technology Association and adopted by the Korea industrial standard.

• 한국조명전기설비학회:학술대회논문집
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• 한국조명전기설비학회 2009년도 추계학술대회 논문집
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• pp.15-18
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• 2009

Photopia, LightTools, and ASAP are typical software for optical design of a luminaire. Through using various lighting simulation software some different results can be found under the same conditions. Therefore, the purpose of this paper is to compare simulated photometric data and values illuminance of different types of LED prism luminaires under the same conditions. Then, LED prism luminaires were divided into the linear type and the planar type. Also three kinds of prism angles were divided into $30^{\circ}$, $45^{\circ}$, and $60^{\circ}$. In addition, the reasons for such differences were analyzed.

• 한국항해학회지
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• 제24권5호
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• pp.385-395
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• 2000

In the transportation literature, many useful decision making models for ship routing and ship scheduling have been studied. But the majority of these studies are on industrial carriers, bulk carriers, or tankers. It is quite recent that a few optimization models have been developed for liner fleet routing and scheduling problems. However there have been few academic studies on decision making models for the routing or scheduling problems of passenger ships in spite of their economic importance in the entire shipping industry. The purpose of this study is to develop analytic decision making models for ship routing and scheduling for the passenger ship fleet. This study gives two optimization models, one is a linear programming model and the other a goal programming model. These two models are solved easy by commercial linear programming softwares and suggest optimal ship routing plans and many other useful implications for passenger ship fleet managers.

• 한국군사과학기술학회지
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• 제19권4호
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• pp.415-423
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• 2016

A TOF type LADAR is utilized for unmanned systems(UGV, UAV, USV, etc.), precision digital elevation maps, and electronic fences. Electronical and optical signal processing techniques are melted in LADAR sensor systems. In this study important factors are examined for high reliability sensor development. By considering those factors, hardwares and softwares of a test LADAR is developed and tested, We report the practical design tips, test results, and future works for better LADAR system development.

• 한국산학기술학회:학술대회논문집
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• 한국산학기술학회 2010년도 추계학술발표논문집 1부
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• pp.394-397
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• 2010

암호화 기술을 응용한 저작권 관리 기술들은 저작권자가 대가를 지불한 사용자에게만 사용권한을 줄수 있어 좀 더 적극적인 저작권 보호 기술이다. 본 연구에서는 디지털 저작권 관리(DRM) 소프트웨어의 사용성 품질을 평가하기 위해 시험 메트릭을 제안하였으며, 품질 평가는 디지털 저작권 관리 소프트웨어의 품질 향상을 유도할 수 있는 기술로서 국제 표준을 수용하는 전략기술 개발을 통해 객관성과 활용도를 높일 수 있다.

• 경영과학
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• 제20권2호
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• pp.179-196
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• 2003

Function point model is the international standard method to measure the software size which is one of the most important factors to determine the software development cost. Function point model can successfully be applied only when the detailed specification of users' requirements is available. In the domestic public sector, however, the budgeting for software projects is carried out before the requirements of softwares ere specified in detail. Therefore, an efficient function point estimation method is required to apply function point model at the early stage of software development projects. The purpose of this paper is to compare various function point estimation methods and analyse their accuracies in domestic software projects. We consider four methods : NESMA model, ISBSG model, the simplified function point model and the backfiring method. The methods are applied to about one hundred of domestic projects, and their estimation errors are compared. The results can used as a criterion to select an adequate estimation model for function point counts.

• 품질경영학회지
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• 제27권3호
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• pp.94-112
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• 1999

It is booming to use computer and information owing to the information society. As software applications have grown, so too has the importance of software quality. Therefore, software quality measurement and evaluation are necessary to satisfy the users who are using computers. The ISO/IEC 9126 defines six quality characteristics and twenty-one subcharacteristics including forty inter quality characteristics. We developed software measurement and evaluation technique using the check list in accordance with the ISO/IEC 9126 in design phase. We applied idea and concept of Total Quality Management in order to evaluate and measure the quality of software. Namely, it is the concept such as "you should do it right the first time." or "you have to build quality in the process." We executed the quantitative evaluation of software, also had shown the distinctive result in order that users and developers can find the errors easily. We evaluated the quality of academic softwares in order to verify developing technique at S college. As a result of the evaluation, this college has found it necessary to maintain the software as soon as possible because academic systems are not adequate for users at this present time.

• 품질경영학회지
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• 제24권1호
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• pp.20-31
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• 1996

A pure zero-one integer program is formulated for determining where to assign the inspection stations in a multi-stage production system. The objective fuction is formulated to minimize the overall inspection costs. One of the major characteristics of this system is that an assigned inspection station is to inspect only the items produced in previous manufacturing stages. Each inspection station can be assigned to any possible inspection stage between two manufacturing stages. Error-free and screening inspection policy is assumed in this system and the defective items found in any inspection station will be reworked at once. The integer programming model presented in this paper has the advantages in the ease of modeling and modifiing as compared with the existing dymanamic programming methods. The solutions of the model can be easily obtained by the commercially available softwares like LINDO and GAMS.

• 대한전기학회:학술대회논문집
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• 대한전기학회 2009년도 제40회 하계학술대회
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• pp.40_41
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• 2009

본 논문은 한국형 에너지 관리 시스템(Korean Energy Management System)의 프로토타입 네트웍 어플리케이션 개발을 위한 데이터 베이스 구축에 대해 요약하였다. 본 논문에서는 두가지 측면에 집중하였다. 첫째, 각 어플리케이션 프로그램의 연산에 필요한 데이터를 추출하였다. 몇 가지 네트웍 어플리케이션 프로그램이 기저 모델로 선택되었으며 각 기저 모델에 필요한 데이터가 추출되었다. 둘째, 국내 실정에 적합한 전력계통의 토폴로지 구조 및 설비 모델에 대한 공통 모델이 구축되었다. 본 논문에서는 KEMS 너트웍 어플리케이션 프로그램에 공통으로 적용될 어플리케이션 공통 모델(application common model, ACM)을 제시하였다. 공통 모델은 계층적 비계층적 전력계통 구조를 포함하며 직간접의 데이터 링크를 이용하여 연관관계가 정의되었다. 제안한 데이터베이스 모델은 국내 전계통 데이터를 이용하여 시험되었으며 실시간 SCADA 데이터가 시험을 위해 사용되었다. 시험을 통해 제안한 데이터베이스 구조가 한국형 에너지 관리 시스템에 효과적으로 적용될 수 있음을 입증하였다.

• 한국정밀공학회:학술대회논문집
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• 한국정밀공학회 1995년도 추계학술대회 논문집
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• pp.903-906
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• 1995

In this paper,human body models have been manufactured by the use of rapid prototyping techniques, which are to be used for surgery planning in clinical practice. In this manufactacturing process, CT or MRI data of human bodies are prepared and the images are processed to obtain sectional contours. With these contours, three-dimensional surface triangulated models are constructed, which finally transformed to STL file for rapid prototyping. For this purpose, total service system for manufacturing of human body models is constructed by employing commercial softwares, and the related problems and process parameters are investigated