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Investigation of He-Ne Lasers

(交大學刊編輯委員會, 1966-04)

溫鼎勳

;

王興宗

;

T.S.Wen

;

S.C.Wang

To facilitate laser research at Chiao Tung, a laser plasma tube fabrication process using simple equipment has been developed. Consequently, tubes containing mixtures of He and Ne gases were made of different diameters and lengths, and their operation properties investigated. In this paper, the fabrication process is described and some characteristics of He-Ne gas lasers pertaining to the relations between output power and reflectig mirrors,exciting current,etc.,are presented.

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蒙特卡羅法之應用

(交大學刊編輯委員會, 1966-04)

陳雲宗

;

顏守謙

;

葛必昭

本文敘述交通部電波研究所用於計算臺北上空電離層實高之方法，判讀數據之方法，以及試算結果。理論上假設電子密度之高度變化為單調增加，並考慮地球磁場之影響，將虛高之積分式變換為便於數值計算之矩陣形式，並導出係數方陣因素，實高，最大電子密度，層厚等之計算公式。實際方面，由虛高對頻率之觀測數據，判讀整理實高計算用數據，利用電子計算機計算實高及其他有關特性。計算結果與美國國家標準局所計算者一致。

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On a General Optimization Principle for Discrete Systems

(交大學刊編輯委員會, 1966-04)

曾逢益

;

鄭鈞

;

Fung-I Tseng

;

David K. Cheng

A general theorem about a function of a matrix vector is presented and proved. It is shown that this theorem forms the basis of a general optimization principle for certain performance index in a discrete system. With this principle, it is possible to determine both the optimum(maximum or minimum) value of the performance index and the parameters of the syatem in order to achieve the optimum condition. An example is given which illustrates the optimization procedure as well as demonstrates the versatility of the principle.

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The Study of Reflex Klystron

(交大學刊編輯委員會, 1966-04)

郭双發

;

S.F.Guo

In the fabrication of the modern silicon semiconductor device, such as the passivated planar transistor or the monolithic intergrated circuit, the p-n junction is formed by impurity diffusion through a finite diffusion mask opening. The diffusion mask is a layer of silicon dioxide thermally grown by steam oxidation technique. The diffusion opening may be a rectangular stripe or circular dot precisely revealed by photolithographic technique. The impurity atom distribution can not be approximated by an elementary one-dimensional diffusion process. Instead, this distribution must be determined from a detailed solution of a boundary value problem for the structure under consideration. The purpose of this paper is to present a full three-dimensional soution of diffusion problem by integral transform method. The solution is based upon an instantaneous source diffusion process. Two different diffusion openings are considered in the analysis. The rectangular coordinates and the multiple Fourier transform are used for the rectangular geometry. The cylindrical coordinates and the multiple Fourier-Bessel transform are used for the circular geometry.

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Occurrence of Es over Taipei

(交大學刊編輯委員會, 1966-04)

黃胤年

;

Yinn-Nien Huang

Using the foEs data in the period March 1960-August 1964, the diurnal, seasonal, and solar cycle variations of the percent occurrence of foEs greater than 5 Mc/s over Taipei were studied. The results were about the same as those of the other Asian stations ever reported. The correlations between P and R as well as between P and Ap were also studied. The results show slight negative correlations. No significant correlation was found between the daily geomagnetic activity and daily occurrence of Es. Comparing the present results with those obtained for another epoch of the solar cycle, it seems to conclude that the correlation of P on R and that of daily geomagnetic activity on daily occurrence of Es are different epoch of the solar cycle.

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Analysis of H-type Waveguide

(交大學刊編輯委員會, 1966-04)

劉浩春

;

Hao-Chun Liu

This report presents a theoretical investigation and the experimental results of a special kind of waveguide, H-guide. Physically, the guide consists of a dielectric strip sandwiched between two parallel metal plates. Electrically it is excited in a mode having no longitudinal current flowing in the metal and most energy is located in the dielectric. The fields in the air decay exponentially as the distance from the dielectric surface increases. The basic formulas which describe the behavior of H-guide are derived. Expressions which are used for the determination of the cut-off frequency, rate of field decay in the air and attenuation due to

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臺北上空電離層實高及有關特性之計算

(交大學刊編輯委員會, 1966-04)

黃鐘洺

;

李宏洋

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The Applications of Monte Carlo Method

(交大學刊編輯委員會, 1966-04)

本文之目的在於介紹蒙特卡羅法之原理及其在計算機方面之應用。先以求π及求定積分為例，說明蒙特卡羅法模擬問題之原理，步驟及其性質，次以解或然率問題而示其優點。最後對長龍問題做有系統之研究，文中各例題均寫成計算機程序計劃並用交大計算機中心之IBM1620電子計算機加以計算。

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Analysis and Design of Control Systems for Aircraft and Missiles

(交大學刊編輯委員會, 1966-04)

韓光渭

;

K. W. Han

In this paper, control systems for aircraft and missiles are analyzed and designed using a "stability curve" method which is particularily suitable for testing stability and adjusting parameters for complex control systems. Design procedures are given along with examples.

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風箏

(1966-04-20)

管管

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野草莓

(1966-08-13)

管管

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星期六的白星期天的黑

(1966-08-20)

管管

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星期六的白星期天的黑

(1966-08-20)

管管

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星期六的白星期天的黑

(1966-08-20)

管管

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星期六的白星期天的黑

(1966-08-20)

管管

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給你幾陣蟬

(1966-08-31)

管管

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兩個小湖

(1966-09-19)

管管

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On the Synthesis of a Special Class of the Communication Network

(交大學刊編輯委員會, 1966-10)

汪中磊

;

C.L.Wang

The highway system is a special kind of communication network. In this paper three problems related to the mathematical model of the highway system is discussed and solved.

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Analysis of Sampled-Data Systems in the W-plane

(交大學刊編輯委員會, 1966-10)

韓光渭

;

孫志凱

;

K.W.Han

;

C.K.Sun

A computer program for doing bilinear transformation is presented, and the relations between z-plane and w-plane are investigated. Various methods for analyzing sampled-data control systems in the w-plane are considered.

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Analysis of Nonlinear Sampled-Data System Using Z-Transform Method

(交大學刊編輯委員會, 1966-10)

陳英亮

;

韓光渭

;

Y.L.Chen

;

K.W.Han

A method of testing stability of sampled-data systems with a relay-type nonlinearity is presented. In the z-domain, a linear sampled-data system which is equivalent to a nonlinear system under steady state condition can be found, and the existence as well as the stability characteristics of the limit cycle can be defined.

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