動的計劃法에 依한 多段階 在庫管理模型과 最適政策決定

金相漢 慶北大學校 經商大學 經濟學科 1976 慶商大學論集 Vol.4 No.-

슘페터의 利子理論體系

金相漢 慶北大學校 經濟經營硏究所 1996 經商論集 Vol.24 No.2

코발트를 첨가한 Mn-Zn Ferrite의 자기적 성질에 관한 연구

김상한,이정식,한종린 慶星大學校 1992 論文集 Vol.13 No.2

Effects of CoO additives on the magnetic properties of Mn-Zn ferrites are described. The six kinds of ferrites are prepared by the conventional ceramic method. The crystal structure of these samples is confirmed with the spinel structure by X-ray diffraction experiment, and the lattice constant is about 8.49Å. The Curie temperature of the samples increases with increased CoO contents on the initial permeability and temperature graph. The initial permeability decreases slowly as frequency increases.

通貨와 GNP間의 因果關係 檢證

金相漢,徐正敎 慶北大學校 1992 論文集 Vol.52 No.-

To construct economic models and analyze economic phenomena with them, it is extremely important to make sure the relationship between monetary aggregates and economic activities. The relationship between money and, espacially, GNP has been a focus of the extensive controversies in macroeconomics betwen Keynesians and Monetarists, and there have been lots of both theoretical and empirical works. This paper summarizes the literature on the causality analysis and applies the outcomes in the literature to examining the causality relationship between monetary aggregates (M_1, M_2, M_3, RB, and M_2A) and nominal GNP or its components in Korea. In the preparatory discussion for constructing the model, the following four aspects were focused on. First, each of the two variables (X_t and Y_t) has to take the normal probability distribution. That is, any of the variables has to take constant means and variances. Therefore, in the empirical analysis of this paper we used two types of filtering process : (l-kL)^2 and (l-L)·(l-kL). Second, the filter which is used in the controlled model (in which future-time lags are eliminated) and the noncontrolled model must be the same type of filtering process to eliminate the serial correlation between residuals. It should be the case because any influence on the causality relationship that can occur due to using a different filter should be eliminated. Third, there is a problem of choosing the optimum number of time periods (in the past and in the future) to be used as the explanatory varaibles in the regression equations. In this paper, we considered four quaters of the future, eight quarters of the past, and four quarters of the past from the base time. To make the analysis simple, the same number of time lags were used for an identical regression model. Fourth, the raw data used for estimating a regression equation, in principle, should not be seasonally adjusted. This should be the case for avoiding any spurious causality that can be obtained from a different method of seasonal adjustment. The three causality tests-Sims Test, Granger Test and GMD Test-have been used, and "six steps", unlike the existing test methods, in constructing model were used to improve the statistical significance. The test results strongly suggest that the nominal GNP (or the real GNP) unidirectionally causes monetary aggregates (espicially, M_1 and M_2) in Korea. This outcome raises some significant implications for monetary policy in Korea as follows. The monetary indicators that have so far beenused as the intermediate target of monetary policy should be reconsidered. Regarding the problem of choosing an intermediate target in monetary policy, we should not rely on the monetary indicators that are obtained by the simple-sum monetary aggretates, but on interest rates, or judgments based on overall considerations on various monetary and real variables and expectational behaviors of the private sector followed by flexible and comprehensive policy implimentations. Especially, in Korea where the real-name system of financial transactions is not established yet and so flows of funds are apt to be distorted, a reliable linkage mechanism between the financial sector and the real one is called for as a prerequisite for intermediate targets to be informative variables.

공기중과 수중에 있어서 송파기의 음향효과

金尙漢 釜山水産大學校 1976 釜山水産大學 硏究報告 Vol.16 No.2

길이 170㎝ 직경 45㎝로 된 철과 양쪽을 두껑으로 닫아 수밀하여 수압을 높일수 있는 tank를 만들고 그속에 해수를 넣고 압축기로 tank속의수압을 높여 실제 바다의 수심과 같은 조건이 되게 하였다. 이때 수온은 22°∼25℃였고 tank속의 송수파기의 거리는 1m로 고정하였고 각주파수마다 음압별로 송파기에 보내고 그 소리를 수파기를 통해 녹음된 것을 분석한 결과를 요약하면 다음과 같다. 1. 공기중 1m거리에서 각 주파수마다 음압(50+(n-1)10db 이때 n=1,2,3,4,5,6)의 차이가 10db인 등차 급수였던것이 tank 속의 1m거리에서는 음압(45+(n-1)5db 이때 n=1,2,3,4,5,6)의 차리가 5db인 등차 급수로 감쇠한다. 2. 1KHz인 주파수의 음압(60+(n-1)10db이때 n=1,2,3,4,5)이 수중 1㎏/㎠의 수압에서 음압(50+(n-1)5db 이때 n=1,2,3,4,5)이 었던것이 10㎏/㎠에서는 일률적으로 10db씩 감쇠한 음압(40+(n-1)5 db이때 n=1,2,3,4,5)으로 나타난다. 3. 공기중에서 90db의 음압으로 고정시킨 각주파수의 신호를 수중에서 송파기로 보내면 수중 1㎏/㎠에서는 64∼66db이 되어 약 25db 감쇠되고 10㎏/㎠에서 52∼56db이 되어 약 35db로 감쇠되며 17㎏/㎠에서는 33∼42db이 되어 약 50∼55db인 감쇠 현상을 볼 수 있다. 4. 공기중의 100db인 음압의 소리가 수심이 약 200m인 곳에서는 약 30db의 음압으로 감쇠되어 전달 된다. The measurements of attenuation of sound pressure at low-frequency have been made vertical acoustic paths located between 1 m of monitor-speaker and hydrophone in high pressure anechoic tank. The following were the results obtained from the present investigation: values for the attenuation of 0.2KHz∼15KHz sound in anechoic tank were obtained from change that difference value(10db) of sound pressure(50+(n-1)10db then n=1,2,3,4,5,6)in air were recorded for difference value(5db) of sound pressure(45+(n-1) 5db then n=1,2,3,4,5,6) in water pressure of 1 ㎏/㎠. The measurements definitely establish the decrease of attenuation with increasing water pressure.

콘서트홀의 음향특성에 관한 연구(Ⅰ) : About the analysis of reverberation in concert hall of Busan San ub University 부산산업대학교 콘서트홀의 잔향분석에 관하여

김상한 경성대학교 1985 부산수산대학 논문집 Vol.6 No.2

Concert halls, in which various types of music are performed, will be evaluated finally by the fact whetheres they can transfer music to the audience musically well. Therefore, the principle acoustical design factor is the reverberation time. It is necessary to evaluate the reverberation through a quantitative analysis by the experiments for concert hall. Generally though, one can say that the reverberation times for speech and recorded music should be as short as possible, for light music they should be short and for concert and church-music they should be long. We carried out a considerable amount of research on the acoustics of concert hall and arrived at an empirical relationship between the volume of the concert hall, the amount of absorptive material within the concert hall and a quantity which we called the reverberation time. The purpose of this study is to evaluate the reverberation of an experimental model and suggest the revised value of absorption for the expected reverberation of it. The main concert hall of BUSAN SAN UB UNIVERSITY was used as the experimental model. The results of his study could be used as a fundamental date for the evaluation of reverberation and the revision in the sound defects of the model.

슘페터의 信用 - 發展 메커니즘 再檢討

김상한 慶北大學校 經濟經營硏究所 1998 經商論集 Vol.25 No.2

中小工業의 基本問題와 對策方向

金相漢 경북대학교 1981 새마을 硏究論叢 Vol.1 No.-

多數地域 産業聯關모델에 關한 分析

金想漢 慶北大學校 經商大學 經濟學科 1980 慶商大學論集 Vol.8 No.-

해인사의 가람배치와 관광루트

김상한 東國專門大學 1997 金龜論叢 Vol.4 No.1

본 연구는 산지가람의 공간배치가 갖는 교학적 의미를 조명함으로써 사찰관광안내의 한 모형을 제시한다. 해인사는 1200년의 산지가람이며, 대표적인 화엄사찰이자 법보 종찰이다. 산문과 법당은 수미산중심설에 따라 입지하고 있다. 해인사의 부속암자는 2가지 유형의 3개 관광루트에 의해 연결될 수 있다.