한국에 있어서의 학교급식개선을 위한 연구 II. 자활급식 2년간의 관찰

김명호,이원덕,김영옥,김문식,Kim, Myung-Ho,Lee, Won-Duck,Kim, Young-Ok,Kim, Moon-Shik 대한예방의학회 1976 Journal of Preventive Medicine and Public Health Vol.9 No.1

It is obvious that adequate nutrition is essential for growth and development of school children, and many elementary schools in this country have already practiced it. Therefore, it would seem apparent that the school feeding program would have a significant effect on the growth and development of school children. This paper presents a two-year experimental school-feeding program from 1973 to 1974, and attempts to evaluate its effects by before-and-after nutrition surveys conducted in two elementary schools, one experimental and the other as a control. The two schools are both located in the same county (Yongin-Kun, Kyunggi-Do), and the families of their students are presumed to share the same socio-economic level. To assess the effect of school-feeding, we measured height, weight, chest circumference and grasping power. Physical examination was done foresigns of nutritional deficiency. A stool examination for parasites and blood examinations for hemoglobin, hematocrit and serum protein were included. Analyses were done for 150 students selected randomly at the beginning of the program. These students attended the school throughout the program period. Results are as follows: 1. The amount of increase of height, weight, chest cirumference and grasping power were greater in the experimental school than in the control school, but the differences are not statistically significant. 2. Signs of vitamin deficiency decreased in both experimental and control schools during the two-year program period. 3. At the time of the 1974 post-survey, values of Hb. & Hct. revealed no significant differences between the two schools, but serum protein level was a little higher than that of general Korean rural children of the same age. 4. Infestation rate of parasites had increased in both schools during the two-year program period. 5. Each student of the two schools was classified into three major classes, according to the level of economic condition of his or her parents, namely higher, middle and lower. The results of each class of the experimental school was compared with that of the corresponding class of the control school, expecting the relative magnitude of change largest in the lower economic class of the experimental school. However, change was greatest in the middle class, still not being statistically significant. Finally, the authors concluded that the two-year period for such a program is not sufficiently long for its beneficial effects to be demonstrated and measured. As long as the growth and development of children are concerned, planning with a more distant perspective is required, as well as the development of new methods of evaluation.

D.C magnetron sputter법으로 증착된 TiAlN의 중간층에 따른 특성연구

김명호,이도재,이광민,김운섭,김민기,박범수,양국현,Kim, Myoung-Ho,Lee, Doh-Jae,Lee, Kwang-Min,Kim, Woon-Sub,Kim, Min-Ki,Park, Burm-Su,Yang, Kook-Hyun 한국재료학회 2008 한국재료학회지 Vol.18 No.10

TiAlN films were deposited on WC-5Co substrates with different buffer layers by D.C. magnetron sputtering. The films were evaluated by microstructural observations and measuring of preferred orientation, hardness value, and adhesion force. As a process variable, various buffer layers were used such as TiAlN single layer, TiAlN/TiAl, TiAlN/TiN and TiAlN/CrN. TiAlN coating layer showed columnar structures which grew up at a right angle to the substrates. The thickness of the TiAlN coating layer was about $1.8{\mu}m$, which was formed for 200 minutes at $300^{\circ}$. XRD analysis showed that the preferred orientation of TiAlN layer with TiN buffer layer was (111) and (200), and the specimens of TiAlN/TiAl, TiAlN/CrN, TiAlN single layer have preferred orientation of (111), respectively. TiAlN single layer and TiAlN/TiAl showed good adhesion properties, showing an over 80N adhesion force, while TiAlN/TiN film showed approximately 13N and the TiAlN/CrN was the worst case, in which the layer was destroyed because of high internal residual stress. The value of micro vickers hardness of the TiAlN single layer, TiAlN/TiAl and TiAlN/TiN layers were 2711, 2548 and 2461 Hv, respectively.

코발트60 원격치료기에 대한 Semiuniversal Wedge Filter의 제작과 임상응용

김명호,윤석록,신동오,Kim, Myung-Ho,Yun, Suk-Rok,Shin, Dong-Oh 대한방사선치료학회 1989 大韓放射線治療技術學會誌 Vol.3 No.1

고 에너지 방사선으로 용적이 적은 표재성 종양 및 부정형의 체표면과 경사진 조사야에 대한 방사선 치료시 종양 용적내에 균등한 선량분포를 얻기 위해서 Wedge filter 기법이 많이 사용되고 있다. 본 연구의 목적은 코발트 $60{\Gamma}$선 치료를 위한 Semi-Universal Wedge filter의 제작과 임의의 조사야에 대한 최적한 출력 및 정확한 조작방법을 기술하고 방사선 치료계획의 최적화를 기하기 위해서 Wedge filter의 임상응용 방법을 제시하고자 한다. Wedge filter are used in high energy radiation therapy to obtain uniform isodose lines at small volume tumor and irregular body surface. The aim of this study is not only to describe the method of construction and setting of semi-universal wedge filter for $^{60}Co$ radiation therapy but also to get the optimum treatment planning by clinical application of wedge filter.

급속 응고한 Al-Pb 편정 합금의 조직과 성질 - 1. 급속 응고 조직 특성 -

김명호,배차헌,이호인 ( Myung Ho Kim,Cha Hurn Bae,Ho In Lee ) 한국주조공학회 1989 한국주조공학회지 Vol.9 No.1

N/A Microstructural characteristics of Al-3.63wt.% Pb hyper-monotectic alloy rapidly-solidified by melt spinning were examined. Possibility of forming a planar liquid-solid interface during rapid solidification of this alloy was also considered with a morphological stability theory, and a mechanism of forming banded structure observed at the bottom parts of melt-spinned specimens was considered as well. Application of the absolute stability criterion predicts the liquid-solid interface of the primary aluminium phase to be able to maintain a planar interface during the early stage of rapid solidification. Formation of banded structure was supposed to be resulted from the release of latent heat during solidification, which affect the stability of a planar liquid-solid interface.

어린이의 건강, 부모의 책임, 사회의 책임

김명호,Kim, Myeong-Ho 한국건강관리협회 1987 건강소식 Vol.11 No.4

2004 가전산업 전망

김명호,Kim, Myeong-Ho 한국전자정보통신산업진흥회 2004 電子振興 Vol.24 No.1

전자무역의 기술 동향 분석

김명호,Kim Myung-Ho 한국정보통신학회 2005 한국정보통신학회논문지 Vol.9 No.2

전자무역 기술 관련 동향의 흐름은 기능적이고 계층적 측면으로 서비스와 어플리케이션, 네트워크계층으로 발전해 가고 있는데, 대부분의 계층적 분야가 전자무역 확산이 본격화되기 이전에 정립되다 보니 기존의 체계는 국제교역 관점의 기술을 포괄하는데 한계가 있게 되었다. 따라서 이 같은 한계를 극복하기 위해 새로운 기술 동향의 정책 정립이 필요하게 되었다. 본 논문에서는 기술 분야의 기업간 통합을 포함하여 내부적 네트워크 및 이에 따른 문제점과 개선방안을 제시하였다. 또한, 전자무역이 새로운 기술 환경에서 제공하는 가능성과 이것이 기업들에 미치는 효과를 제시하였다. The trend of the electronic trade related with technology has been developed into the steps of service, application networks in its technical skill and scopes. But most fields for the steps were established before the electronic proliferation of the electronic trade and so the existing systems have had a limit in including the viewpoints for the international trade. Accordingly, to cover the limit, the policies for the new technical trend are necessary. In this article, the international networks, problems and improvement plans including the integration between companies in the technical sides are presented. And further the possibility and effects on the companies which are given by the electronic trade in the new technical circumstance are also presented.

참다운 건강 사회건설에 대한 투자

김명호,Kim, Myeong-Ho 한국건강관리협회 2001 건강소식 Vol.25 No.9

선행관계를 고려한 다중버젼을 기반 실시간 동시성 제어 기법

김명호,홍석희(Myoung Ho Kim),Seok Hee Hong 한국정보과학회 1997 정보과학회논문지(B) Vol.24 No.11

본 논문은 실시간 데이타베이스를 위한 다중버젼을 이용한 잠금 기법을 제안한다. 실시간 처리 시스템에서 사용하는 우선 순위를 기반으로 제안하는 동시성 제어 기법은 높은 우선순위를 가지는 트랜잭션을 선호하여 데이타 충돌을 해결한다. 다중버젼과 선행관계를 사용함으로써 동시성을 증가시켰을 뿐 아니라 종료시한을 초과하는 트랜잭션의 수를 줄이고자 시도하였다. 트랜잭션들 간의 직렬성 순서를 의미하는 선형관계의 사용은 불필요한 트랜잭션의 철회를 피할 뿐 아니라 시스템의 성능을 저하시키는 교착상태를 발생시키지 않게 한다. 우선순위를 고려하여 데이타 충돌을 해결하지만 낮은 우선순위의 트랜잭션이라도 종료시점에 가까운 경우 불필요하게 철회되지 않는다. 본 논문에서는 모의실험을 통하여 제안한 동시성 제어 기법의 성능을 비교 평가하였다. This paper investigates a multiversion concurrency control algorithm for real-time databases. Based on a priority cognitive algorithm commonly used in real-time processing, the proposed algorithm resolves data conflicts among transactions in favor of the urgent transactions, I,e., those with higher priority. Our algorithm increases the degree of transaction concurrency while minimizing the transactions that miss their deadlines. This is achieved by using precedence relationships and multiple versions. A precedence relationship, which implies a serialization order among conflicting transactions, is utilized to resolve data conflicts and avoid deadlocks. The algorithm dynamically determines the abortion of lower priority transactions depending on the likelihood of roll-backs and their states of execution. This leads to saving system resources by reducing unnecessry abortion of the lower priority transactions. We present the experimental results of our algorithm, comparing other real-time concurrency control algorithms. It is shown that the proposed algorithm has superior performance to several algorithms for real-time databases.

분사주조에 의한 입자강화 금속기지 복합재료의 제조시 액적의 열적거동과 미세조직에 대한 고찰

김명호,배차헌,정해용,박흥일 ( Myung Ho Kim,Cha Hurn Bae,Hae Young Jeong,Heung Il Park ) 한국주조공학회 1992 한국주조공학회지 Vol.12 No.4

N/A Particle-reinforced metal matrix composites via the Osprey spray casting process were fabricated by injecting second phase particles of Al₂O₃(<40㎛) and W(6㎛) into the spray of Cu droplets, and the thermal behaviors of the composite droplets during flight were considered theoretically on the basis of mixing modes between the Cu droplets and the reinforced particulates injected. It was found that the W-injected spray is comprised of particle-embedded droplets, and the Al₂O₃-injected spray comprises particle-attached droplets. From the predicted results of the thermal behaviors of the composite droplets and preforms produced, it is concluded that the thermal behaviors of the composite droplets during flight, and during the subsequent deposition are strongly influenced by its mixing modes between the reinforced particulates and Cu droplets during flight.