• 소성∙가공
• /
• 제6권5호
• /
• pp.416-424
• /
• 1997

In the present study, a contact search and check algorithm for general tool surface described by triangular FE patch is proposed. To improve numerical stability, SEAM element using the linear Coons interpolation has been used. To check the proposed algorithm, both clover cup and L-shape cup deep drawing processes are calculated. The computed results shows that the proposed contact algorithm can be successfully applied for sheet metal forming processes with general shaped tools.

• 복식문화연구
• /
• 제17권2호
• /
• pp.270-282
• /
• 2009

The purpose of this study was to inquire into lounge wear and Jeff Koons and to design lounge wear in which the works, Balloon Dog(1994$\sim$2000) and Hanging Heart(1994$\sim$2006), of Jeff Koons was applied. The concept of design was appealed as sensuousness, activeness, and comfort. The target of design was teens and those in their 20s. Knit or woven fabric in 100% cotton/silk and cotton blended was selected. The design had fitted silhouette and the items were bras, panties, pajama pants, shorts, robes, slippers etc. Adobe Illustrator CS2 and Adobe Photoshop CS2 program were used for the design. In the lounge wear in which Balloon Dog applied, main color was red, blue, and green with pale tone and frills and pleats were selected for the details. Elastic blended fabric was used for the comfortable. Variety application of color and patterns were conducted for rhythmical visual. In the lounge wear design in which Hanging Heart applied, main color was also red, blue, and green with pale tone. Halter neck and robes were selected for the sexy looking. Cool and soft feelings were pursued through use of cotton and silk blended fabrics or stripes patterns. The result of this study may give valuable information to merchandisers and designers who develop lounge wear. It may also provide designers who use computer program such as Adobe Illustrator and Adobe Photoshop as design tools with useful examples.

• 대한조선학회논문집
• /
• 제52권6호
• /
• pp.501-508
• /
• 2015

Lately, much research on hull plate forming has been successful in improving productivity of the forming process. Those researches include forming methods, forming information, and automation. After forming each plate, the fabricated surface is compared with the corresponding designed surface. Two sets of data from the designed and fabricated surfaces are matched in order to complete the forming process. However, only a few papers deals with comparison of two surfaces. This paper presents a new matching method based on the bounding volume hierarchy (BVH). By comparing the conventional method, this new approach using BVH shows not only good agreement but also better advantages.

• 한국수학교육학회지시리즈E:수학교육논문집
• /
• 제28권3호
• /
• pp.321-338
• /
• 2014

본 원고에서는 수학자 족보 프로젝트(MGP, Mathematics Genealogy Project)의 과거와 현재에 대해 소개하고, 힐베르트와 저자의 경우를 예를 들어, 우리가 MGP를 어떻게 활용할 수 있을지 연구한다. MGP를 통하여 한국의 주요 수학자들(한국 수학사에 기여한 5명, 역대 한국과학상 수학부문 수상자, 대한수학회 학술상 수상자 등)의 뿌리에 대해 조사해 본 결과 MGP의 데이터베이스에는 그들의 기록이 누락되었거나 부실한 경우가 대부분이었다. 따라서 본 논문에서는 자신의 수학적 뿌리에 대한 정보를 프로젝트에 입력하는 방법을 구체적으로 소개하였다. 이 작업은 한국인 수학자들 자신의 학문적 뿌리를 정리하고 또한 한국 근대 수학사의 이해 및 한국 수학의 미래를 전망하는 데 도움이 된다.