• International Journal of Precision Engineering and Manufacturing
• /
• 제9권4호
• /
• pp.79-82
• /
• 2008

A method is described for ideally reconstructing the profile from a surface profiling measurement containing a reasonable amount of null measurement data. The proposed method can conjecture lost information and rectify irregular data that result due to bad measuring environments, signal transmission noise, or instrument-induced errors, The method adopts the concept of computer graphics and consists of several processing steps. First, a search for valid data in the neighborhood of the null data is performed. The valid data are then grouped and their contours are extracted. By analyzing these contours, a bounding box can be obtained and the general distribution of the entire area encompassing the valid and null data is determined Finally, an ideal surface model is overlaid onto the measurement results based on the bounding box, generating a complete reconstruction of the calculations, A surface-profiling task on a liquid crystal display photo spacer is used to verify the proposed method. The results are compared to those obtained through the use of a scanning electron microscope to demonstrate the accuracy of the proposed method.

• 한국자기학회지
• /
• 제18권6호
• /
• pp.221-224
• /
• 2008

본 논문에서는 함정 선체의 갈바닉 부식 전류에 의해 발생되는 수중 전기장 신호를 경계요소 해석 도구인 FNREMUS 소프트웨어를 이용하여 예측하고, 예측된 신호로부터 함정 전기장 신호 특성을 특이치 분해(singular value decomposition) 방법을 이용하여 등가적으로 다이폴 모델링하는 방법에 대해 기술하고 있다. 제안된 다이폴 모델링 기법은 30 m 심도에서 예측된 경계요소 해석 결과와의 평균 차이 비교 방법을 통해 타당함이 확인되었다. 본 논문에서 제안된 모델링 기법을 이용하면 함정에서의 다양한 심도 변화에 따른 수중 정 전기장 신호 분포 특성 예측 및 분석이 가능하다.

• 창의정보문화연구
• /
• 제7권4호
• /
• pp.217-224
• /
• 2021

인공지능 등의 4차 산업 기술의 발전과 코로나 상황으로 인해 최근의 대학 사회는 급격하게 변화하고 있다. 대학의 입시 환경도 심각하게 어려워지고 있어 대학 내에서 학과와 전공이 급속하게 변화하고 있다. 따라서, 대학의 학과는 학과의 내·외부 환경에 따라 새로운 전공 또는 융합 전공을 위한 교육과정을 개발할 필요가 있다. 하지만, 이러한 교육과정을 정확하게 개발하는 것은 매우 어렵고 긴 시간이 걸리는 작업이다. 본 논문에서는 국가직무능력표준(NCS)을 사용한 교육과정 개발 방법과 적용 사례를 제안하고 있다. 본 논문에서 제시한 교육과정 개발 방법은 전통적인 3단계 방식, 즉 분석, 설계, 그리고 개발로 구성되어 있으며, 각 단계에서 NCS를 활용하였다. 본 논문에서 제안한 방법은 교육과정 개발의 시간을 줄이는 것에 중점을 두었으며, 제안한 방법의 유용성을 보여주기 위해서 교육과정 개발의 한 사례를 제시하였다.

• 한국전자거래학회지
• /
• 제2권1호
• /
• pp.53-77
• /
• 1997

This paper presents an efficient methodology for information system development by adopting the concept of extended components which can achieve the improvement of development productivity, reductrion of development time periods, quality improvement of information systems, etc. when information development projects are carried out. First of all, for efficient development of information systems, development steps of current methodologies for information system analysis are subdivided into components in detail and outputs required at each step are defined. The components are extended by types and various application methods are proposed in each step of information system development. In addition, a method which uses advantages of current methods such as SDLC, prototyping, and RAD, is also proposed. In this research, a CASE tool named S-Designer is used for the development of extended components and their interface, and a system development method called DSDM for the deviation of detailed steps and corresponding outputs.

• 한국소프트웨어감정평가학회 논문지
• /
• 제16권1호
• /
• pp.21-26
• /
• 2020

The completeness appraisal of software is performed in various forms, such as assessing the completion level in the development process, calculating the defect rate, estimating the development cost, and calculating the redevelopment cost. Along with this, the problem that is often dealt with is estimation of the development time. Even in a dispute over completeness due to delays in software development, issues of calculating an appropriate development time required to develop a delivery software or a development time required for change requests are often included in the appraisal request. In this paper, we introduce the procedure and method for estimating the appropriate project time of software development so that the appraiser can be applied to the appraisal work for determining the completeness. The method is based on the manual for calculating the appropriate project period of software development project.

• International journal of advanced smart convergence
• /
• 제12권2호
• /
• pp.187-192
• /
• 2023

Currently, our society is showing many changes due to the influence of information and communication technology (ICT). At the center of these information and communication technologies are software, intelligence, and sensing technologies. The software-related industry is steadily developing due to various software development policies implemented by the government and related organizations. Software development is desirable, but on the other hand, some negative aspects are also appearing. In this study, we proposed an objective way to infer the progress of software development for reasonable resolution of cases when a dispute related to the progress of development occurred during the software development process. The proposed solution was based on the waterfall model. The outputs generated in each process of the waterfall model are contents excluded from subjectivity. Therefore, it can be used as an objective method for calculating software development progress.

• 한국콘크리트학회:학술대회논문집
• /
• 한국콘크리트학회 1999년도 학회창립 10주년 기념 1999년도 가을 학술발표회 논문집
• /
• pp.219-222
• /
• 1999

Concrete is to be important quality in placement point and exact test method needed about early judgement method concrete on placement point. But early judgement method of concrete proposed various kind of method because the problems of accuracy and the time required of test exists, it is used within the limits. This study is to propose of early strength judgement by using microwave for accurate estimating early strength of concrete and to develop test machine. Through out this study we find that belows. 1) Strength development of concrete specimen according to the time heated by microwave showed the height strength development in 9 minutes regardless of slump and w/c. 2) As cooling time is long, strength of concrete specimen according to the time heated by microwave showed high strength development and this tendency is like regardless of heating time, w/c and slump. 3) As w/c is high, accelerating strength development according to w/c showed lower strength development and this tendency is like regardless of slump, heating time and cooling time. 4) As slump is big, compressive strength of specimen in standard curing showed lower value and as w/c is big, strength development showed lower

• 식물병연구
• /
• 제21권1호
• /
• pp.20-23
• /
• 2015

A sequential planting method was developed to screen rice plants with durable resistance against rice blast in a short time, and applied for several years in Korean rice breeding program. In this study, we showed the advantages of a sequential planting method compared to other pathogenicity tests. The correlation analysis among three pathogenicity tests and other factors demonstrated that durable resistance depended on the average of diseased leaf area and the number of compatible pathogens. Significant correlations were found in the nursery test but not in the field test result. In addition, we traced changes in the pathogen population during sequential planting stages through re-isolation of the pathogen. The portion of compatible pathogens was increased during sequential planting. Through this study, we provide an effective sequential planting method and direction of durable resistance in a breeding program.

• 한국항해항만학회지
• /
• 제36권4호
• /
• pp.285-290
• /
• 2012

e-Navigation strategy IMO promotes is defined as it is necessary for network and information standard to provide various maritime safety informations to in land and on board users, and it is expected to provide a large amount and diverse kinds of maritime spatial information services to them. However, as there are some limits to transmit that by current mobile maritime communication technologies, it is required to simplify and optimize the information. In this study, tree node method is applied to ENC using Douglas-Peucker algorithm and we arranged the effect of simplified spatial information through CALS method which compensates the defect of basic tree node method.

• 한국콘텐츠학회:학술대회논문집
• /
• 한국콘텐츠학회 2004년도 춘계 종합학술대회 논문집
• /
• pp.224-228
• /
• 2004

인터넷의 사용이 급증하면서 IT 또는 비IT 등 많은 기업에서 웹기반 ERP가 개발되고 있다. 그러나 ERP 개발 기관 대부분 체계적인 분석 방법을 적용하지 못하거나, 개발 규모의 대형화로 인하여 적지 않는 어려움을 겪고 있다. 본 논문에서는 빠르고 효과적인 웹기반 ERP 개발 도구를 개발하는데 필요한 웹의 설계 패턴을 분석하는 방법과 ERP 분석방법에 대해 연구한다. 본 연구 결과로 웹기반ERP의 다양한 설계 패턴은 웹 패턴과 ERP요소를 조림하여 사용할 수 있는 컴포넌트 개발 방법에 이용될 수 있다.