Browsing by Issue Date, starting with "1976-12"

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多種用途之電子化輸入輸出系統
(1976-12)
朱四明
;
Shy-Ming Ju
本文提供一個由萬用鍵盤，輸入輸出控制單元、及點列掃描輸出裝置構成之多種用途輸入輸出系統，以利點子化之資料登錄、處理、及表報。輸入輸出資料可為中文、外文字母、特殊符號、或三者之混和。輸入時，操作員將中文字依簡單之法則分解成字元序，然後由鍵盤以字元鍵按入；外文字母及特殊符號則直接以符號鍵按入。輸入控制單元對按入之鍵碼採相應之措施，並將字元鍵碼序或符號鍵碼轉換成固定長度之字碼，然後累積於應用程式指定之輸入緩衝區，一俟整行之資料由鍵盤輸入完畢，引起該輸入行動之應用程式即可由輸入緩衝區取得以字碼方式表示之輸入資料也。輸出時，文字及符號資料均由應用程式以字碼之方式置於輸出緩衝區，然後輸出控制單元將之轉換成字形點矩陣，並置放於字形輸出處。此時若輸出工具為逐字式之點陣印刷機或螢幕顯示器，則該字形可立即被印出或顯現。或輸出工具為逐列式之點陣印刷機，則俟整行之字形已全部置放妥當後始成排印出。印出之字體可事先選擇，一行字之大小更可由程式任意放大，並可以直式或橫式印行。字與字間，行與行間之距離亦可由程式任意調整。本系統擬涵蓋之中文字為8,532字，外加256個符號（包括外文字母、阿拉伯數字、標點符號、以及特殊符號等），由於本系統容許操作員由鍵盤造字或設符號，故實際能涵蓋之中文字及符號當不止此數。
哥氏空間上運算子之弱緊緻性
(1976-12)
郭滄海
;
Tsang-Hai Kuo
Weak compactness of operators on Grothenaieck spaces is investigated.If Y is a Banach space satisfying one of the following properties : (a)the unit ball of Y* is weak* sequentially compact;(b) Y=C(K) with K a countably compact scattered space; ( c) Y is an L-space; then every bounded linear operator from a Grothendieck space into Y is weakly compact.
廣義高氏測度之垂直與對等
(1976-12)
韋金昌
;
Kim-Chheng Ouy
Let {Xt|tεT}be a stochastic process defined on a measurable space (Ω,F)Let P and Q be two measures induced by {Xt|tεT}. It is known [3] that if both P and Q are Gaussian, then Pand Q are either perpendicular or equivalent. It will be shown that under certain conditions, such a dichotomy can be extended to the case where P and Q are generalized Gaussian.
新中文字根集合的設計
(1976-12)
杜敏文
;
Min-Wen Du
本文敘述如何設計用以作電算機中文輸入輸出的一組新字根。該組字根設計目標有二。即一，最多只要用四個字根即可單一區分每個中文字。二，使由字根組合出來的字能較為美觀。我們增加了一些新字根，同時使用字根變形的方法以達到這兩個目標。
伯氏曲率張量為零的凱氏複流型
(1976-12)
余文能
;
Wen-Neng Yu
X頻帶雙飄移高低高矽衝渡二極體之準靜態設計規範
(1976-12)
張懋中
;
陳茂傑
;
Mau-Chung Chang
;
Mao-Chieh Chen
A modified quasi-static model is developed to optimize the power efficiency of double-drift X-band Lo-Hi-Lo IMPATT diodes. We take the ionization rates and scattering-limited velocities for electrons and holes to be not equal at an operation temperature of 150 ℃, and let the carriers' ionization coefficient be in the form α=A*exp(-B/E),where E is the electric field.We maintain the carriers' velocities at saturation and solve for a steady state solution. All these assumptions not only save computer time, but also give us essential physical features.Current tuning effect is concluded as the most important factor in designing the device structure.Large signal values of negative conductance, susceptance,r.f. power generation efficiency are calculated as a function of the oscillation voltage amplitude for a specified bias current density. All of these informations would provide a useful guidance for both device and circuit designers.
振盪強度總數之數量關係式
(1976-12)
李維銘
;
Wei-Ming Lee
With the aid of RHF atomic functions numerical evaluations of the oscillator strength sum S(1) for polyelectron atoms He-Xe are performed. Numerical evaluations of S(K) are formidable and those with non-integral K are unable to be evaluated directly. Therefore we also present a qunatitive relation between S(K) and K and numerical results of S(K) at least over a range of K from -2 to 2 both integral or fractional can be easily performed there-from.
最佳連續抽樣法之討論
(1976-12)
戴久永
;
Chiu-Yung Tai
Beattie (1962) proposed a continuous acceptance sampling plan for attributes inspection which seems to appear well-suited and applicable to the situations when production is continuous, sampling test is destructive, a constant sampling rate is required, and discrimination between two quality levels is required with a small sample size. Prairie and Zimmer (1973) presented brief underlying mathematics and provided tables and graphs of the ARL for a variety of plans to aid in the design and evaluation of Beattie's continuous acceptance sampling procedure. However, their approach suffers the restriction that the parameters are integers. In this paper, a method for deriving the non-integer parameters is proposed, we begin by discussing the previously published method.Then we described our new approach . Finally, some tables and graphs are provided for determining a plan along with examples of their use.
非線性半導體雷射之運算
(1976-12)
劉濬堯
;
Jiunn-Yau Liou
The conventional linear optical model, which was used to describe the lasing behavior, neglects the effects of spontaneous emission and defines the threshold condition intuitively. The defficiency of this model is unable to explain the experimental results. Here, a nonlinear model which takes the effect of spontaneous emission into account was solved by self-consistent method. It has been found that this model is able to illustrate several lasing characteristics which cannot be explained by linear optical model.
局部凸空間上的演化方程式
(1976-12)
林朝枝
;
Chaur-Jy Lin
Let S be a locally convex topological vector space. The method of product integration is used to obtain solutions to the time dependent evolution equation μ'(t)=A(t)μ(t),t≧0, where A is a function from [0,∞) to the set of nonlinear operators from S to itself, and μis a function from [0,∞) to S.
最少無靜態障礙組合邏輯線路之計算機傾向合成法
(1976-12)
陳正
;
Cheng Chen
Hazard phenomenon is one of the most improtant problem in digital system design. It is due to unequal delay time of each gate in combinational logic Ckt. For any given switching function of within 4 variables, we can detect and eliminate it from Karnaugh map easily [7,8]. If the number of variables of given switching function is more than four, then this method is tedius and time consuming. It will be shown that by using modified extraction algorithm, we can obtain minimum static hazard-free combinational logic conveniently.
e之帕德近似函數之討論
(1976-12)
倪維城
;
Wei-Chen Ni
In this paper, we establish a lower bound as well as an upper bound for the error of the (n-μ,n)-th Padé approximant to e^-z. Moreover, we find a condition under which {Rn-μ,n(x)}n=1 ∞ can not converge geometrically to e^-z on [0,+∞).
雷射鑽孔過程的熱效應
(1976-12)
黃廣志
;
許隆勝
;
Kuang-Chih Huang
;
Long-Sheng Hsu
A model that uses a continuous, distributed, and moving heat source to describe the temperature profile for laser-drilled-holes has been developed. A new mathematical approach has been systematically performed in detail. The temperature profile of the laser-formed hole are calculated to indicate the magnitude of thise factors that can influence the process of the removal of materials. A modified CO2 laser system, based on double-pulse-discharge technique [1], has been set up. Using this modified laser system, the experimental results are found to be in agreement with the mathematical analysis.
場效應電晶體負電阻理論之商榷
(1976-12)
莊晴光
;
蔡中
;
Ching-Kuang Tzuan
;
Chun Tsai
A theory of negative differential resistance proposed originally for JFET is extended and discussed for the results for MISFET devices to determine both peak point and valley point in the I-V curves.
時序機器是否線性之測試
(1976-12)
張祖玄
;
Tsu-Shuan Chang
A new method for testing whether a given sequential machine is linear is presented. This test algorithm is different from any existing identification method in that it is applied before the characterizing matrices having been found, hence a tedious calculation can be avoided.
時序機線型實施之可行性
(1976-12)
吳憲明
;
Shiang-Ming Wu
A new approach is presented to determine whether a completely specified sequential machine can be realized by a linear machine, if state-splitting is permitted. A machine is found to be linearly realizable if we are able to construct a "standard array"from its flow table. The standard array provides the flow table of the linear machine pursued.The construction process involves mainly the interchange between rows and columns in an array and hence is feasible for both hand computation and computer program. This method can be applied to general sequential machines that do not require to be strongly-connected, with exactly two inputs, permutation machine, or autonomous machine. An extended result to deal with incompletely specified case is also provided.
任意電子密度兩原子哈伯模式的費米能階及磁感性
(1976-12)
鄭以禎
;
王淑霞
;
Yi-Chen Cheng
;
Shu-Hsia Chen
The eigenvalue problem of a two-site Hubbard Hamiltonian, which contains sboth the correlation term U and the hopping term t , is solved exactly and the grand partition function of the system is obtained. The chemical potential as a function of temperature for a given number of electrons per site n is numerically calculated for several values of n.The chemical potential as a function of n at absolute zero is shown to have three discontinuouties at n=1/2,1,and 3/2. The magnetic suspectibility per site is shown to be of the Curie-Weiss form for the temperature range t<
分批式萃取之最佳操作條件
(1976-12)
劉清田
;
范榮輝
;
Ching-Tien Liou
;
Rong-Huei Fann
溶劑萃取被廣泛的應用於工業上；由於經濟上的重要性，本文對分批式萃取中，其最佳操作條件，諸如溶劑的總用量，萃取的次數，以及溶劑的分配等，做一個有系統的研究，並獲得二個定理。定理1示知溶劑的平均分配，可獲得最高的溶質回收率，萃取的數值可從表1或圖2得知；表1或圖2是非常有效力的，因為當萃取次數及/或溶劑總用量改變時，它可以很容易地讀出萃取率的改變。定理2則指示，利用方程式(20)和(21)和圖3，即能獲得最佳的萃取次數和溶劑之總用量；有一點宜注意的，及方程式(20)和(21)可以很快地計算出來，因為它只是一種算術上的計算。
擬相似之弱收縮變換
(1976-12)
吳培元
;
Pei-Yuan Wu
Let T be a completely non-unitary (c.n.u.) weak contraction (in the sense of Sz. -Nagy and Foias). We show that T is quasi-similar to the direct sum of its C0 part and C11 part. As a corollary, two c.n.u. weak contractions are quasi- similar to each other if and only if their C0 parts and C11 parts are quasi-similar to each other, respectively. We also completely determine when c.n.u. weak contractions and C0 contractions are quasi-similar to normal operators.
多時間微擾理論及其在非諧和振子之應用
(1976-12)
郭明賢
;
Ming-Hsien Kuo
In this article of the works on the anharmonic oscillator, a miltiple-time-scale perturbation method, which is originally introduced by Krylov and Bogoliubov to solve the problems in nonlinear mechanics, is applied. It is seen that the results obtained agree completely with those of Landau and Lifshitz.