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박용수 대한천식알레르기학회 1989 천식 및 알레르기 Vol.9 No.1
The allergens to which the patient is sensitive, the degree of sensitivity, and the dose of allergen to be used in immunotherapy can be discovered through the use of intracutaneous tests involving progressive five-fold dilutions of allergens, prepared in the physician' s office and stored in the refrigerator at 2 to 5 C. The critical variable is the size of the wheal produced by the intracutaneous injection of an allergen. When a sequence of five-fold dilutions of an allergen are injected, the end-point is detected by noting the dilution that first produces a wheal that is more than 2mm larger than wheals produced by weaker dilutions. The end-point dilution is used as the starting dose for immunotherapy.
박판주조법에 의한 제조한 Al-Mg-Si-X 합금의 미세조직 연구
박용수,이민하,이상복,김낙준 대한금속재료학회 2002 대한금속·재료학회지 Vol.40 No.2
A study has been on the microstructure and mechanical properties of strip cast Al6061 alloy with and without 0.5Mn addition. The microstructure of the as-cast alloys is characterized by the presence of Si particles along cell boundaries. It also shows that there is a development of well-defined subgrains caused by hot rolling effect during strip casting. Si particles present along the cell boundaries transform into fine α-AlFeSi particles during solution treatment in the base alloy. There is also a presence of α-AlFeSi particles in the Al matrix. The addition of Mn results in an increase in the volume fraction of α-AlFe(Mn)Si particles in the Al matrix. Due to the increased volume fraction of α-AlFe(Mn)Si particles in the Mn containing alloy, the Mn containing alloy has less amount of Mg_2Si precipitates in the Al matrix than the base alloy. Accordingly, the Mn containing alloy shows lower yield strength but higher ultimate tensile strength due to higher work hardening rate than the base alloy. The present study shows that the strip casting is a viable process for the fabrication of structural Al alloys.
문서중심 및 웹기반 핵설계 자동화 시스템의 설계 및 구현
박용수,김종경,Park, Yong-Soo,Kim, Jong-Kyung 한국정보처리학회 2004 정보처리학회논문지D Vol.11 No.6
본 논문에서는 모델링과 전산코드 실행 등에 시간과 노력이 많이 드는 핵설계 업무를 자동화하기 위하여 $IDP^{TM}$(Innovative Design Processor)를 개발하였다. IDP의 기본 원리는 문서중심 설계와 웹기반 설계이다. 문서중심 설계란 프로그래머가 아닌 일반 설계자가 동적문서(active document)라는 문서를 작성하여 이를 특수한 프로그램이 파싱후 실행하도록 하면 해석결과와 표 및 그림 둥이 담긴 완전한 설계문서를 자동적으로 얻게 됨을 말한다. 동적문서는 일반 HTML 또는 XML 편집기를 이용하여 작성될 수 있고 웹에서 또한 작성이 가능하다. LAMP(Linux/Apache/MySQL/PHP)의 웹기반 설계 환경하에서 설계마법사 형태의 서버 및 클라이언트 프로그램을 통해 설계 초보자도 쉽게 설계를 할 수 있게 되어 있다. To automate nuclear design works which are time-consuming and man-power intensive, Innovative Design Processor ($IDP^{TM}$) is being developed. Two basic principles of IDP are the document-oriented design and the web-based design. The document-oriented design is that, if the designer writes a design document called active document and feeds it to a special program which has a robust parser, the finai document with complete analysis, table and plots is made automatically. The active documents can be written with ordinary HTML/XML editors or created automatically on the web, which is another framework of IDP. Using the proper mix-up of server side and client side programming under the LAMP (Linux/Apache/MySQL/PHP) environment, the design process on the web is modeled as a design wizard style so that even a novice designer makes the design document easily.