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단순입방 격자상에 흡수벽이 있는 3차원 취보를 1차원 대칭취보로 본 관점에서
宋俊鎬 서울市立大學校 1982 論文集 Vol.16 No.-
We present here asymptotic results for 1-D random walks of the projections of 3-D random walks on simple cubic lattice with absorbing barriers along the z coordinate axes. After deriving the generating function for such lattices with and without absorbing boundaries, we have calculated the probability of eventual return to the original plan, the effect of absorbing plan on the probability of a walker eventually returning to his starting plan, the probability that a walker ever reaches ℓ before a walker visits absorbing barriers, and the mean number of steps to reach ℓ for the first time. The results are as follows: 1) G(1,0)∼6ℓ₁=0(1-s)½,0<ℓ<ℓ₁ 2) F(1,0)∼1-??? 3) F(1,ℓ)∼ 1-?? 4) lim[1-s)<n(ℓ)> ? ∼ 1-?? Most of the results in this paper have been derived by the method of the Green's functions.
송준호 대신대학 1990 논문집 Vol.10 No.-
Before the declaration of democratization on the 29th of June, 1987, the unions were weakly organized and collective bargaining were poorly developed. However, as of the end of 1989, 7,883 local unions were established and these were 3.6 times as many as in 1986. The increased number of the unions brought the vigorous negotiations for advancing in wages and other working conditions. In the course of negotiations, more conflicting strikes than ever occured far and wide. The Labor Ministry and the employers attribute economic depression and social unrest to the lenthening labor disputes and insist on the substitution of joint bargaining for company bargaining. They prefer joint bargaining which has brought successful result in the cotton industry to company bargaining. Yet a recent field research by the Korea Labor Institute shows that 57.2 percents of whole bargaining are company bargaining, 15.0% factory bargaining, and joint bargaining composed of regional and industrial bargaining are 27.7%. Here the unexpectedly high percentages of joint bargaining and also the salient percentages of factory bargaining reveal the trend toward the centralization and the decentralization in bargaining structure, respectively. Therefore, considering this diversified tendency, the government must not induce joint bargaining forcedly. In so far as the deep-rooted distrust between employees and employers exist, too much intervention of the government may disturb the foundation of industrial peace.
船舶 Propeller 軸系의 Bearing荷重配分에 關하여
宋俊鎬 울산과학대학 1980 연구논문집 Vol.5 No.1
船舶 propeller軸系에 있어서, 各 bearing에 미치는 荷重이 不均一할 경우에 bearing에 여러 가지 좋지 못한 影響을 준다. 本稿의 目的은, 軸의 처짐 曲線을 따라 軸支持 bearing을 上下로 移動시킴에 의한 bearing 荷重配分改善 및 bearing의 確認에 對한 考察이다. In the ship propeller shaft systems, unbalanced bearing loads have bad effects on bearings. The purpose of this paper is not just to investigate the distribution of beating with moving up and down the bearings that support the shaft along the deflection curve of shaft but to check by means of jack she alignment of the propeller shaft systems.
송준호,최성규,김영주,이만호,한상호,이상종,정을순 대한핵의학회 1984 핵의학 분자영상 Vol.18 No.1
Clinical measurement of thyroid autoantibodies in sera of some thyroid disorders have been widely applied since about twenty years ago, We investigated the incidence and titers of both antimicrosomal and antithyroglobulin antibodies in forty eight cases with controls and one hundred and thirty three patients with some form of thyroid disorders. The results were as follows; 1) In controls, antimicrosomal antibodies were positive in 2% but antithyroglobulin antibodies were all negative. 2) In a series of one hundred and thirty three patients with thyroid disease, antimicrosomal antibodies were positive in 44% but antithyroglobulin antibodies were positive in only 15%. 3) The rate disclosing the positive results of antimicrosomal antibodies were 71% in Hashmoto's disease, 60% in Graves' disease, and 38% in primary hypothroidism, respectively. On the other hand, the positive results of antithyroglobulin antibodies showed 21% in Graves' disease, 19% in primary hypothyroidism, and 18% in Hashmoto's. disease, respectively. Though there were relatively high rate of both antimicrosomal and antithyroglobulin antibodies in patients with nodular goiter, they were only seven cases in our series. 4) The rate with the extremely high titers of antimicrosomal and antithyroglobulin antibodies ($gt;1:160²) was 83% and 67% in Hashmoto's disease, 50% and 67% in primary hypothyroidism, and 41% and 18% in Graves' disease. Accordingly, the thyroid autoantibodies, were commonly found higher positive rate in patients with Hashmoto's disease, primary hypothyroidism, and Graves' disease. Among these disorders, the extremely high positive rate of the thyroid autoantibodies was found in patients with Hashmoto's disease.
제한된 Self-Avoiding Walk 모형에 관한 연구
송준호 서울市立大學校 1996 論文集 Vol.30 No.-
The modified self-avoiding polygon model on the square lattice is proposed, in which the walker performs two-choice directed self-avoiding walks, first to reach some horizontal line, back to the χ axis and one dimensional self-avoiding walks to return to the original point. The generating function for the model is obtained. An asymptotic form for the number of N-step walks, ?? is obtained where μ= ??, γ=1, A is given.