• 대한전자공학회:학술대회논문집
• /
• 대한전자공학회 2002년도 하계종합학술대회 논문집(3)
• /
• pp.219-222
• /
• 2002

In this paper, 3D image display system is constructed under PC environment and programed based on modular programming by using visual C)1. The hole procedures are composed of data preparation, 3D display over transformation and scaling.

• Korean Journal of Mathematics
• /
• 제19권4호
• /
• pp.465-480
• /
• 2011

B. C. Berndt established many identities about infinite series. In this paper, continuing his work, we find new identities about infinite series containing hyperbolic functions and trigonometric functions.

• East Asian mathematical journal
• /
• 제37권1호
• /
• pp.87-95
• /
• 2021

Let K be an imaginary quadratic field with ��K its ring of integers. For a positive integer N, let K(N) be the ray class field of K modulo N��K, and let ��N be the field of meromorphic modular functions of level N whose Fourier coefficients lie in the Nth cyclotomic field. For each h ∈ ��N, we construct a ray class invariant as its special value in terms of the extended form class group, and show that the invariant satisfies the natural transformation formula via the Artin map in the sense of Siegel and Stark. Finally, we establish an isomorphism between the extended form class group and Gal(K(N)/K) without any restriction on K.

• 대한전자공학회:학술대회논문집
• /
• 대한전자공학회 2001년도 하계종합학술대회 논문집(4)
• /
• pp.227-230
• /
• 2001

In this paper, We present a 3D image data for ocular refina. This 3D display techniques are used voxel(cuboid) projection. Voxel is 3D reconstruction method of the pixel. In this paper, 3D image display system is constructed under PC environment and programed based on modular programming by using Visual C++. The hole procedures are composed of data preparation, 3D Display over transformation and scaling.

• 전자공학회논문지
• /
• 제53권2호
• /
• pp.70-75
• /
• 2016

본 논문에서는 다항식에 기초하여 유한체상의 P=2인 경우의 효율적인 곱셈기를 구성하는 방법을 제안하였다. 제안한 곱셈기 회로는 다항식의 연산부와 mod F(${\alpha}$) 연산부, 모듈러 연산부로 구성된다. 또한, 이들 각 연산부는 모듈 구조를 가지므로 m의 확장에 따른 회로 구성이 용이하며 회로 구성에 사용한 소자는 AND 게이트와 XOR 게이트만으로 구성하여 정규성, 확장성이 용이하며 이를 기반으로 VLSI화에 적합하다. 제안한 곱셈기는 기존의 곱셈기에 비해 좀 더 콤펙트, 규칙적, 정규성과 확장성이 용이하며 최근의 IoT 환경에서의 여러 분야에 적용 및 응용이 가능할 것이다.

• Korean Journal of Mathematics
• /
• 제6권1호
• /
• pp.67-70
• /
• 1998

Let ${\eta}(\tau)=q^{1/24}\prod_{n=1}^{\infty}(1-q^n)$, where $q=e^{2{\pi}i{\tau}}$ and ${\tau}{\in}\mathbb{C}$. Then the transformation $$g(\tau)={\rho}\frac{\{\eta(\frac{\tau+1}{2})\eta(\frac{\tau+2}{2})\}^{16}}{\eta(\tau)^{24}}({\bar{{\rho}}{\eta}}(\frac{\tau+1}{2})^8+{\eta}(\frac{\tau+2}{2})^8)^2$$ is holomorphic for Im ${\tau}$ > 0, and has the property $$g(\tau+1)=g(\tau),\;g(-\frac{1}{\tau})={\tau}^{12}g(\tau)$$. (Theorem)

• 한국멀티미디어학회논문지
• /
• 제17권4호
• /
• pp.466-477
• /
• 2014

Many image hiding schemes based on least significant bit (LSB) transformation have been proposed. One of the LSB-based image hiding schemes that employs diamond encoding was proposed in 2008. In this scheme, the binary secret data is converted into base n representation, and the converted secret data is concealed in the cover image. Here, we show that this scheme has two vulnerabilities: noticeable spots in the stego-image, i.e., a non-smooth embedding result, and inefficiency caused by rough re-adjustment of falling-off-boundary value and impractical base translation. Moreover, we propose a new scheme that is efficient and produces a smooth and high quality embedding result by restricting n to power of 2 and using a sophisticated re-adjustment procedure. Our experimental results show that our scheme yields high quality stego-images and is secure against RS detection attack.

• 복식
• /
• 제57권4호
• /
• pp.110-125
• /
• 2007

The purpose of this study is to analyze efforts of the mesa trends on the modern fashion design. For the study documentary research and qualitative content analysis have been carried out. Articles in magazines, seminar reports, and news related to trends were collected and analyzed to develop mega trends nowadays. As results, $2002{\sim}2006$ mega trends were extracted to Co-divergence, Emotional tech, Bi-dentity, Private+One and $2002{\sim}2006$ design trends extracted to Camouflage, Transformation, Modular system, Blur, Ease. The influences of mega trends and design trends on the modern fashion design have been proved. Those were expressed as eclectic style, deconstructionist style, reductive style and functionalist style in fashion design. The present era could be defined as cultural pluralism blended with various cultures and styles. Fashion as the essential display of contemporary culture and society has been successfully confirmed in this study.

• 기술경영경제학회:학술대회논문집
• /
• 기술경영경제학회 2002년도 제20회 동계학술발표회 논문집
• /
• pp.133-149
• /
• 2002

This study aims to investigate the impact of wide use of digital technology, in particular, the Internet, on innovation process and corporate strategy in electronics industry. The introduction of digital technology has changed innovation process, business model and organizational structure of the electronics companies. With the introduction of digital technology, the entire value chain of electronics industry from procurement, sales, and marketing to R&D and manufacturing has been restructured. E-commerce has been a major agenda for e-business. Recently, collaboration among electronics companies through e-marketplace has emerged as an important issue. A web-based e-commerce standard, so called RosettaNet, has been developed for facilitating e-transactions of electronics firms. The development of digital technology has dramatically increased the processing speed and sophisticated the virtual reality technology. As simulation becomes easier and more effective, the uncertainty and risk involved in R&D has decreased significantly. Another positive impact is closer cooperation between R&D and manufacturing functions. Taking advantage of automated and flexible production technology, has a new type of firm, so called, EMS (Electronics Manufacturing Services) emerged, whose strategic focus is on manufacturing only. The EMS can be seen as a kind of innovative organization, that is, a modular organization for production function. Digital technology has made convergence of computer and communication possible at early years but right now the convergence has been accelerated in extensive areas of communication, broadcasting, information appliances, software, contents, and services. Firms' effort for an innovative product and service has been intensified and the competition for a new standard product and service has become severe in electronics industry. Business activities are always realized in a specific organizational context. Accordingly building up innovation-friendly organization has emerged as a critical concern. Due to the striking decrease of transaction cost, a network type of organization has proliferated, and a business function turns into a modular organization. As a whole, digital technology has pushed electronics firms into developing their own business model, which takes consideration of standardization of business platform and their core competency.

• 한국시뮬레이션학회논문지
• /
• 제27권3호
• /
• pp.23-36
• /
• 2018

이산사건시스템명세(DEVS) 형식론은 이산사건시스템을 모듈러하고 계층적으로 모델링할 수 있는 잘 정의된 의미론을 제공하고 있어 이산사건시스템 모델링 시뮬레이션 (M&S)에 많이 사용되어 왔다. 이러한 수학적 표현 대신에 DEVS 다이어그램은 복잡한 시스템을 보다 직관적이며 편리한 표현력을 제공한다. 본 논문은 DEVS 다이어그램을 이용하여 표현된 모델을 시뮬레이션 코드로 체계적으로 구현하며 검증하는 DEVS 클린룸 프로세스를 제안하였다. 구체적으로, 주어진 다이어그램 모델의 적합성 검사, 테이블 DEVS 모델로의 변환, 마지막으로 시뮬레이션 소스코드로 변환하는 방법과 역으로 추적성을 기반으로 한 검사기법을 통해 정적 검증하는 구체적인 방법을 제시하였다. 간단한 예제를 통해 제안된 프로세스를 적용하는 구체적인 방법을 설명하였으며, 적용사례 통해 제안된 기법이 실용적으로 적용 가능한 효과적인 프로세스임을 확인하였다.