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경보현 ( Bo-hyun Kyung ),나기욱 ( Kee-wook Na ),한국현 ( Kuk-hyun Han ),홍승환 ( Seung-hwan Hong ),한상준 ( Sang-jun Han ),김보미 ( Bo-mi Kim ) 한국정보처리학회 2008 한국정보처리학회 학술대회논문집 Vol.15 No.2
본 논문은 터치스크린기반의 CE 기기에서 한글을 효과적으로 입력하는 새로운 형태의 터치 GUI 기반 인터페이스를 제시한다. 제시된 한글입력 방식인 심플키(SimpleKey)는 기존의 한글입력방식인 천지인, EZ 한글, 모아키 등과는 다른 터치 제스처 기반 자음 중심의 7~12 인치 터치스크린에 최적화된 방식이다. 심플키는 터치제스처와 누르는 세기 구분을 포함하고, 자음 중심 키배열에 모음 빈도 분석을 통한 제스처 매핑을 적용한 것을 특징으로 한다. 제안된 방식은 현재 8.9 인치 크기의 포터블 디바이스에 적용 구현하였으며 실사용자를 대상으로 사용성 평가를 통해 심플키의 효과성을 검증했다.
A Case Study on Productivity Innovation through Convergence of Sand 3D Printing Technology
한국현(Kuk-Hyun Han),백진욱(Jin-Wook Baek),박상윤(Sang Yun Park),임태완(Tae Wan Lim),박주민(Ju Min Park) Korean Society for Precision Engineering 2021 한국정밀공학회지 Vol.38 No.9
Recently, competition in the manufacturing industry related to the preoccupation of new markets has drastically changed due to the increase in small quantity batch production products. Besides, business models utilizing 3D printing technology suitable for flexible manufacturing are gaining interest. As 3D printing technology is becoming more common, Design for Additive Manufacturing is also in the spotlight. However, the productivity of 3D printing technology is still insufficient in terms of mass production. In this study, the possibility of innovation in mass production process that combines 3D printing technology is presented through the case of innovation in manufacturing productivity of medium-speed engine cylinder head through the integration of sand 3D printing technology. It outlines how sand 3D printing technology is applied to cylinder head mass production processes, how the quality of cylinder head products can be improved compared to conventional pattern-based molding methods, and how productivity can be maximized by reducing process time and human error through hybrid production method with sand 3D printed integrated design cores. In conclusion, this paper presents the effectiveness of sand 3D printing technology which can secure product competitiveness by increasing the production capacity of mass production process, reducing production costs, improving quality, and reducing loss.