포항가속기 저장링챔버의 용접과 누설의 보수

최만호,김명진,이해철,김효윤,한영진,이재우,최우천 한국진공학회 1993 한국진공학회 학술발표회초록집 Vol.- No.-

남북한 보건의료체계의 통합모형 개발

최만호 한국보건복지학회 2004 보건과 복지 Vol.7 No.-

The research inquired into the Health Care System after Unification with examining characteristic of the Health Care System in North Korea and with comparing systems of Health Care and Man Power in North and South. That is, theories of North Korean Health Care are based on data presented by the Board of National Unification, while comparison on Systems of Health Care and Man Power of North and South Korea is based on data announced recently, with which the theorematical pattern of Health Care System has been studied. The outcome of research are as the following: (1) The central health administrative structure is controlled by the ministry of Health and welfare in south Korea, while the vice-minister of Health that is in charge of Health, corresponding to the deputy-prime minister with Department of Health perform Health Care affairs in North. For local administrative system, in South it is dualized with ministries of Home Affairs and Health and welfare at the present time, while North Korea has the simplified system under the control ministry of health. (2) South Korea has 3 stages for performing medical care, whereas North Korea has the system of 4 stages for the purpose. Especially, in South at the lst stage Medical Office of the community, the public health doctor with other members of medical service are stationed to perform the serviced, but in North the hospital for units of city and Gun with the lst stage Medical Office medical service is rendered as the system of Doctor-in-Charge of District. (3) In South Korea, mainly for civilians, Health Care serviced has been rendered, whiled North Korea renders medical service with a type led by government under socialism. Therefore, viewing from the flank of equity for Health Care service, there is a possibility that it might get transformed into medical goods on a commercial scale, deepening the sense of incompatibility in South Korea. In North on the contrary, as far as equity is concerned, there is no room for debate. (4) After unification, considering the case of unification being accomplished by full consent of both sides, the basic principles for organizing Health Care System got divided into 3 stages, the lst of which is "Management during transitional period". the 2nd stage "period for perform example of Health Care", and the 3rd"period of settlement for Health Care System". Namely, (A) In the lst stage, existing Health Care Systems of North and South are to be maintained as the transitional ones, and let the citizens have the right of choice for utilizing Health Care service. The Management System is to control the whole after promoting all the tasks concentrated with Health Care to the level of deputy-prime minister of Health and welfare or of that in charge of health. For procurement of fund, Government revenue is to be appropriated for the system of free Medical fee, and Insurance Fee or Individual Payment is to used for the Medical Insurance system. (B) In the 2nd stage, which is "The period for performing examples of Health Care", the whole expense and effect on the work of Health Care System in both sides will be analyzed, and the evaluation of efficiency will be exercised. (C) The 3rd stage is "the period of settlement for Health Care". with these bases mentioned above, taking equity and efficiency into consideration, of systems of North and South, either one is to be selected by the consent of the people, going through the National Assembly that will make a decision on the bill, and then unified plan will be provide after holding public hearing on it. (5) Therefore. after unification, the model for Health Care System is to maintain, as the transitional system, the South Korean Medical Insurance System and the North Korean fee Free Medical System, developing an exemplary work of two systems, for which analysis of expansions and efficiency will be practiced, and then they will be evaluated. For the standpoint of the people, the equity should be pursued, an...

알루미늄 합금 진공챔버의 초고진공 기밀 기술

최만호,박종도 한국진공학회(ASCT) 1995 Applied Science and Convergence Technology Vol.4 No.3

알루미늄 합금 진공챔버를 제작할 때 따르는 기밀 기술을 용접과 플랜지 이음 측면에서 해설하였다. 알루미늄 합금 재료 특성의 유리한 점 때문에 진공챔버로서의 그 사용이 증가하고 있으나, 챔버나 부품들을 제작할 때에 용접과 플랜지 이음에 상대적인 어려움이 있다. 진공 용접은 주로 TIG용접이며, 용접시에 가상누설을 최소화 하고 균열 방지를 위한 용접설계와 시공조건을 고려하는 것이 중요하다. 플랜지 이음에서는 알루미늄 콘플랫형과 금속오링을 사용하는 플랜지에 대하여 소개하였다. 이러한 기술은 앞으로 핵융합장치, 플라즈마 실험장치, 반도체 제조장비, 일반 초고진공장치에 응용될 것이다.

전자빔에 의한 초고진공 알루미늄챔버 용접

최만호,길계환,최우천 대한용접접합학회 1995 대한용접·접합학회지 Vol.13 No.1

이 글에서는 챔버의 용접에 대해서 기술하였다. 전자빔용접에 의하여 누설률이 1*$10^{-10}$ torr.1/sec 이하로 목표값을 만족하기 때문에 초고진공에 적합한 용접법이다. 챔버는 용접부에 trench 구조를 가져야 진공용접을 하는데 보다 효과적이다. 이것은 지금까지 전자빔 용접에서 시험되지 않은 것이기 때문에 향후 보다 많은 연구가 있으리라고 본다.

포항가속기 저장링 Chamber의 용접변형

최만호,김효윤,한영진,최우천 대한용접접합학회 1993 대한용접·접합학회지 Vol.11 No.4

1)sector chamber II에서 가장 우려되었던 J5, J8의 변형량이 $28\mu\textrm{m}$,$36\mu\textrm{m}$ 이었으므로 목표 값 $50\mu\textrm{m}$을 충분히 보증할 수 있다. 2) Helicoflex gasket type으로 제작된 초도품 챔버에서는 140.deg.C bake-out후 이온 펌프만 으로 20시간 진공배기한 후의 진공도는 2*$10^{-9}$ Torr에 도달하였으며, 용접 type으로 제 작된 챔버에서는 2*$10^{-10}$ Torr에 도달하여서 진공도도 우수하였다. 3)표면조도에 민감한 Helicoflex gasket를 사용하지 않고 알루미늄 플랜지를 용접하여 AI gasketc 를 이용할 수 있기 때문에 초도품챔버에서와 같이 알루미늄 챔버와 스텐레스 스틸 부품을 연결하 는 stainless spool piece가 필요하지 않게 된다. 4)고가의 helicoflex gasket을 쓰지 않으므로 가격절감을 할 수 있다.

가속기 저장링 삽입장치 진공 챔버의 용접

최만호,한영진,김창균,정진화,권영각 대한용접접합학회 1999 대한용접·접합학회지 Vol.17 No.4

PAL(Pohang Accelerator Laboratory) designed and manufactured a 5m-long straight vacuum chamber to adopt U7 undulator that is the first insertion device. Top and bottom plates of the vacuum chamber were made of Al alloy A5083-H321, and welded together by the GTAW welding. The leak rate is less than 1×{TEX}$10^{-10}${/TEX} torr·ℓ/s with negligible welding deformation. The pressure has been maintained below {TEX}$10^{-10}${/TEX} torr after installation. This paper reports the welding process and the method applied to achieve ultimate vacuum performance and t satisfy integrity of welds.

알루미늄 합금제 진공 챔버의 용접 기술

최만호,홍만수,박주식,권영각 한국진공학회 2000 한국진공학회 학술발표회초록집 Vol.- No.-

광명시 작은도서관 활성화 정책 제안을 위한 운영자 인식조사 연구

최만호,노영희,김윤정 한국정보관리학회 2021 정보관리학회지 Vol.38 No.1

2013년, 500세대 이상의 공동주택단지에 작은도서관 설치를 의무화하는 규정 제정과 정부의 ‘생활 SOC 사업’에 따라 작은도서관이 지속적으로 확충되고 있다. 광명시의 경우, 2020년을 시민과 함께 권한을 나누는 ‘주민자치의 해’로 정하고, 이의 일환으로 생활문화공간을 대폭 확대한다고 공표하였다. 이처럼 사회 환경 및 이용자의 요구가 변화할 것으로 예측됨에 따라 광명시 작은도서관은 이에 대응하는 중장기계획 실천방안이 마련되어야 할 것으로 보인다. 따라서 본 연구에서는 변화하는 사회 환경 및 이용자의 요구에 대처하기 위한 작은도서관 활성화 정책방안을 제안하고자 하였다. 이를 위해 광명시 작은도서관 운영자를 대상으로 설문조사와 심층그룹인터뷰를 실시하였다. 연구 결과, 다음과 같은 정책을 제안하였다. 첫째, 운영제도 개선을 위해 지원제도 개선, 공공도서관의 협력체계 강화 및 공립 작은도서관의 역할 강화, 사립 작은도서관의 공공성 강화, 역량별 평가를 통한 차등 지원이 필요하다. 둘째, 작은도서관 운영 전문성 강화를 위해 순회사서 및 전문가 봉사자 활용, 상호대차를 통한 자료 공유, 임기제 협력사서, 권역별 작은도서관 협의회 활성화가 필요하다. Small libraries have continued to be extended since 2013 enactment of regulations requiring establishment of small libraries in multi family housing complex not less than 500 households and the ‘Living SOC Project’ of national government. Gwangmyeong city designated the year of 2020 as the ‘year of citizen autonomy’ sharing the authority with citizens and publicly announced its plan to rapidly extend the living and cultural spaces as a part of that extension. Likewise, as the social environment and the need of users are expected to change, it seems that the small libraries in Gyangmyeong City must prepare a plan for practicing a long and mid term practices in responding to that change. Thus, this Study tries to make a suggestion for a plan for the policy for revitalization of small libraries in order to handle those changing social environment and the need of users. For this, a survey and in-depth group interview were conducted for the operators of the small libraries in Gyangmyeong City. As a result of this Study, the following policies are suggested: first, improvement of support system for improving operational system, strengthening of cooperative system of public libraries, and strengthening of role of public small libraries , strengthening of public characters of private small libraties and differentiated support through evaluation based on abilities; and second, it is necessary for utilization of circulating librarians and professional volunteers, sharing of materials through mutual lending of books, associate librarians having term of office and revitalization of small library conference by regions.

Biochemical stress evaluated by steroid signatures in clinical biomarker studies

최만호 한국환경분석학회 2013 제1회 한국분석기술단체 총 연합 합동 심포지엄 Vol.0 No.-

포항가속기 알루미늄 진공챔버의 용접

최만호,박승용,김명진,이해철,김효윤,최우천 한국진공학회 1992 한국진공학회 학술발표회초록집 Vol.- No.-