• 대한의용생체공학회:학술대회논문집
• /
• 대한의용생체공학회 1996년도 추계학술대회
• /
• pp.335-336
• /
• 1996

Flexible, self-expanding metallic stent were developed using igzag wire bend and segmented polyurethane. Mechanical properties of these stents were tested using INSTRON. These stents were used for palliative treatment of mallignant esophagogastric strictures(3 case) and bawl preparation of collorectal obstruction(10 case). All stents were inserted with fluoroscopic guidance without techinal failures. According to the results, these stents are easy to insert, safe, and very effective for dilation of strictures in curved GI tract.

• 한국학교수학회논문집
• /
• 제2권1호
• /
• pp.105-120
• /
• 1999

This paper is guided for school mathematics education with Excel software. Many application of Excel to mathematics education are increasing the interesting of students. We introduce and discuss the using method of Excel in teaching with computer softwares.

• 한국통신학회논문지
• /
• 제35권5B호
• /
• pp.785-793
• /
• 2010

모바일 RFID 환경의 태그 및 모바일 리더에서는 높은 제약성 때문에 기존의 암호기술 및 프로토콜 기술의 적용이 불가하다. 모바일 RFID 환경에 맞는 정보보호기술 및 프라이버시 보호기술을 개발하기 위해서는 RFID 각 구성 요소별 특성과 각 요소의 전체 연동 관점에서 정보보호기술 및 프라이버시 보호기술을 개발해야 한다. 본 논문에서 제안된 모바일 RFID 단말 보안 S/W 플랫폼 시스템은 모바일 RFID 정보의 보호를 위한 보안 라이브러리를 이식 및 확장하여 RFID 리더부터 응용 서버까지 모든 데이터의 이동 경로에 보안을 적용하도록 지원한다.

• 전력전자학회:학술대회논문집
• /
• 전력전자학회 2006년도 전력전자학술대회 논문집
• /
• pp.561-563
• /
• 2006

This paper summarizes the results of these efforts by offering the PV generation system with solar tracking. The status of PV generation system with solar tracking components and interconnection and effects are semmarized. Hence this paper duscusses only points that might be useful for application.

• 한국작물학회:학술대회논문집
• /
• 한국작물학회 1988년도 춘계 학술대회지
• /
• pp.34-35
• /
• 1988

• 한국정밀공학회지
• /
• 제16권9호
• /
• pp.25-34
• /
• 1999

In spite of the advance of 3D solid modeling technology, there are some distinct areas where 2D CAD S/W are still dominant, and more competent comparing with 3D CAD S/W. For example, in the manufacturing of 2D-shaped electrical parts, most related manufacturing tools have 2D geometric features by nature, and 3D solid models applied to these parts have substantial overheads. Nevertheless, most 2D CAD S/W have no topological inquiry services because they have no such information on their geometrical database inherently. Thus, it is needed to extract such information from 2D CAD database for developing more advanced application such as automated drafting/design S/W. In this paper, the extraction of topological information from 2D CAD has been performed in general way using concept of B-rep. A general extraction algorithm, data structure and meta file format for 2D topological object have been developed and successfully applied to the development of the automated lead frame die design system in Samsung Aerospace. it is also possible to provide a flexible, powerful topology-oriented functionality on any common 2D CAD S/W.

• 한국가금학회지
• /
• 제28권2호
• /
• pp.107-123
• /
• 2001

• 한국정보디스플레이학회:학술대회논문집
• /
• 한국정보디스플레이학회 2007년도 7th International Meeting on Information Display 제7권2호
• /
• pp.1220-1224
• /
• 2007

The effects of plasma damages to the organic thin film transistor (OTFT) during the fabrication process are investigated; metal deposition process on the organic gate insulator by plasma sputtering mainly generates the process induced damages of bottom contact structured OTFTs. For this study, various deposition methods (thermal evaporation, plasma sputtering, and neutral beam based sputtering) and metals (gold and Indium-Tin Oxide) have been tested for their damage effects onto the Poly 4-vinylphenol(PVP) layer surface as an organic gate insulator. The surface damages are estimated by measuring surface energies and grain shapes of organic semiconductor on the gate insulator. Unlike thermal evaporation and neutral beam based sputtering, conventional plasma sputtering process induces serious damages onto the organic surface as increasing surface energy, decreasing grain sizes, and degrading TFT performance.

• 제어로봇시스템학회:학술대회논문집
• /
• 제어로봇시스템학회 2004년도 ICCAS
• /
• pp.1655-1658
• /
• 2004

In this paper, we design and implement remote servo motor control system with real-time micro embedded operating system. The system, where controller and camera image grabber are mounted, handles control commands transmitted from a remote PC web browser. A hard real-time servo motor driver running on the real-time micro embedded OS and then a digital control application which confirms precise sampling time intervals is constructed. Frame grabber images transmitted from camera are saved in a image data format to view on remote PC web browser.

• 한국정밀공학회:학술대회논문집
• /
• 한국정밀공학회 2010년도 춘계학술대회 논문집
• /
• pp.499-500
• /
• 2010