• 한국의상디자인학회지
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• 제12권2호
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• pp.67-73
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• 2010

Whole process of textile printing is made by computer and it remarkably improves environment problem. This digital textile printing is becoming next step environment friendly textile printing method. But, still now range of textile possible for digital textile printing is limited, and also color analysis according to fiber types is not completed. The ink printed on the fabrics through DTP printer can be absorbed and fixed into textile without any blots by pre-treatment using suitable media solution for fabrics types. The chemical formulation of media solution used in the pre-treatment process varies according to the types of textiles and inks for DTP products. First, I studied reference books or articles about color analysis of digital textile printing. Second, I recorded pre-process, printing, post-process and coloring of silk, wool, nylon at same condition. After that, I analyzed $L^*\;a^*\;b^*$, Total K/S, ${\Delta}E$ and studied color intensity and coloring. According to this study, I suggested particular textile special for coloring and manual for affective coloring control. It showed that the performance of the digital printing on the Silk, Wool and Nylon blend fabrics treated by the media solution developed in this study was better than the one treated by the previous media solution for each single inks.

• 한국산업정보학회논문지
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• 제20권1호
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• pp.1-7
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• 2015

In this paper, a 12-bit high resolution, power and area efficiency hybrid digital pulse width modulator (DPWM) with process and temperature (PT) calibration has been proposed for digital controlled DC-DC converters. The hybrid structure of DPWM combines a 6-bit differential tapped delay line ring-mux digital-to-time converter (DTC) schema and a 6-bit counter-comparator DTC schema, resulting in a power and area saving solution. Furthermore, since the 6-bit differential delay line ring oscillator serves as the clock to the high 6-bit counter-comparator DTC, a high frequency clock is eliminated, and the power is significantly saved. In order to have a simple delay cell and flexible delay time controllability, a voltage controlled inverter is adopted to build the deferential delay cell, which allows fine-tuning of the delay time. The PT calibration circuit is composed of process and temperature monitors, two 2-bit flash ADCs and a lookup table. The monitor circuits sense the PT (Process and Temperature) variations, and the flash ADC converts the data into a digital code. The complete circuits design has been verified under different corners of CMOS 0.18um process technology node.

• 융합보안논문지
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• 제5권1호
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• pp.11-18
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• 2005

정보통신기술의 발전과 인터넷 보급 확산의 영향으로 디지털 범죄는 해마다 증가하고 있다. 고도화 전문화되어 가고 있는 디지털 범죄를 해결하기 위해서는 디지털 포렌식 프로세스 표준화, 전문가 양성 및 교육, R&D, 정부의 정책적인 지원 등 디지털 포렌식 기술 발전을 위한 노력이 필요하다. 이에 본 연구에서는 국내 디지털 포렌식 기술의 현황을 파악하고 발전방안을 제시하고자 한다.

• 디지털콘텐츠학회 논문지
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• 제3권1호
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• pp.23-35
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• 2002

현재 다양한 디지털 컨텐츠들이 웹기반 정보시스템을 통해 구축되어 있지만, 웹기반 정보시스템의 체계적인 개발 및 유지보수의 부재로 인해 심각한 "웹 위기" 문제가 발생하고 있다. 이를 부분적으로 해결하기 위해 본 논문에서는 효율적인 웹의 재구성을 위한 웹기반 비즈니스 프로세스 및 항해 모델링 기술을 제시한다. 본 논문에서 제시하는 BPN(Business Process Net) 모델은 웹기반 비즈니스 프로세스 명세모델이며, 시스템구조 모델, 상태전이 모델 및 사용자대화 모델은 항해명세를 위한 모델이다. 이들은 디지털컨텐츠를 포함하는 웹기반 정보시스템의 설계 및 재구성시에 활용할 수 있다.

• 한국소성가공학회:학술대회논문집
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• 한국소성가공학회 2003년도 The 8th Asian Symposium on Precision Forging ASPF
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• pp.107-114
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• 2003

Although cross rolling process has many advantages in forging a joint shaft, an automotive component of front axle unit, subsequent process is necessary to straighten its bending during forging process. In this paper the bending minimization of the joint shaft was studied to eliminate such an additional process. First of all, a characteristic diagram was used to find out factors affecting the bending of the shaft. Also design of experiments was utilized for estimating the influence of those factors. It was found that the phase angle, which is the difference in starting positions between upper and lower dies, was important to minimize the bending of joint shaft and die cooling is necessary to diminish the distribution of bending.

• 디지털산업정보학회논문지
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• 제7권1호
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• pp.173-183
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• 2011

Global logistics including Korea had developed at various fields through the developed IT technology. In addition, in changing into Internet based digital economy times, economic and logistics activities became extending into worldwide over the cross-border. Logistics activity performed by off-line rapidly changed in real environment. But, unfortunately business process modeling about the whole logistics was not happened, even though process modeling had done by transport stages or logistics entities. Therefore, it is difficult to grasp the whole logistics. Additional cost and time was requested due to no association between logistics entities and invisibility. So, this paper has to be process modeling for logistics industry domain. For objective modeling, work area shall be divided and it extracts general work process per each area. And then it defines subprocess of general work process. Cargo tracking in logistics industry domain means to grasp the status and present states at transportation or storage stage. This paper defines business process and data model for electronic processed work area using the UN/CEFACT standard modeling methodology.

• 한국소음진동공학회:학술대회논문집
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• 한국소음진동공학회 2002년도 추계학술대회논문초록집
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• pp.355.1-355
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• 2002

Topology optimization is widely accepted as a conceptual design tool for the product design. Since the resulted layout of the topology optimization is a kind of digital images represented by the density distribution, the seamless process is required to transform digital images to the CAD model for the practical use. In this paper, the general process to construct a CAD model is developed to apply for topology images based on elements. (omitted)

• 정보관리학회지
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• 제25권4호
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• pp.5-23
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• 2008

국립중앙도서관에서 인쇄 출판물을 대상으로 운영 중인 납본체계와는 달리 웹 아카이빙인 OASIS (Online Archiving & Searching Internet Sources)는 웹 사이트, 웹 자원 등의 온라인 디지털 자원을 대상으로 자원 수집, 관리 및 보존하기 위한 과정이 필요하다. 이에 본 논문에서는 웹 아카이빙을 위한 디지털 자원 납본 프로세스를 개발하기 위해 디지털 자원 납본 주체와 대상을 정의하였고, 납본프로세스를 위한 단계별 정의와 기능을 명시하였다. 또한 디지털 납본 시스템 구성을 위한 업무 흐름도와 단위 업무에 따른 기능 정의와 정보 흐름을 위한 구조를 제시하였다.

• 한국측량학회지
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• 제17권3호
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• pp.213-223
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• 1999

부가가치가 큰 대규모 공공자료인 국가기본도 수치지도 자료기반의 고품질을 확보하고, 수치지도제작에서 발생할 수 있는 각종 오류들을 효율적으로 탐색할 수 있는 개선된 수치지도제작 모형을 구현하였다. 이를 위해 기존에 제작된 수치지도를 분석하고 수치지도 상에 포함될 수 있는 각종 오류를 대분류 자료층으로 구분하여 유형화하고, 유형화된 오류들을 탐색하기 위해 자동오류탐색 프로그램과 전산부호검사 프로그램을 개발하였으며, 순수육안탐색방법을 체계화하여 오류탐색방법에 따라 탐색 가능한 오류들을 범주화하였다. 수치지도제작 개선모형을 구현하기 위해 연구한 결과, 수치지도 제작과정에서 발생할 수 있는 각종 오류들이 체계적으로 탐색됨으로써, 수치지도 제작 공정별로 오류가 감소된 수치지도 자료기반의 구축이 가능하게 되었으며, 수치지도 자료기반의 오류가 최소화되어 품질이 향상됨을 확인할 수 있었다.

• International Journal of Computer Science & Network Security
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• 제22권5호
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• pp.335-341
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• 2022

This article is devoted to the study of the process of formation of the digital generation in a distance learning environment. With the introduction of quarantine due to the spread of COVID-19, opponents of digital technologies were forced to turn to relevant resources, while supporters identified new opportunities for the development of didactics and education in general. The irreversibility of the former educational reality became apparent and only the scale of the vision of potential change by interested and disinterested groups differed. Using a comprehensive approach, the authors consider the issues related to the direct and indirect impact of distance learning on children and young people born after the beginning of the XXI century. The article reveals the prerequisites and implications of distance education for the interaction of participants in the educational process. IC technologies during the educational process in the primary grades, in addition to identifying the student's learning deficit, should provide the transmission of non-verbal signals, which are important for children of this age. At the same time in the secondary school IR-technologies are designed to replace frontal learning during the assimilation of knowledge and at the same time not to worsen the quality of the educational process. Formation of students in the HEI takes place in the political science format, constant discussion of problem situations, so the task of introducing IC technology in this process is the accurate transfer of the content of the discussions. Individualization and autonomization of the educational process, its dependence on the results of the choice of educational content, and the use of pedagogical management tools change the philosophy of education for children and youth. The authors conclude that the formation of a digital generation, characterized by an increased level of digital literacy of children and youth, the possession of a certain level of digital capacity requires the use of strategies aimed at optimizing the learning process in a digital educational environment.