spectral coefficient 中文意思是什麼
spectral coefficient
解釋
頻譜系數- spectral : adj. 1. 鬼的；鬼怪（似）的。2. 【物理學】光譜的。
- coefficient : adj. 共同作用的。n. 1. 共同作用；協同因素。2. 【數，物】系數，率；程度。
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An undetermined coefficient constructive method for solving spectral problem
構造譜問題的一種待定系數法 -
According to structural characteristics of multi - phased alloy steels and the properties of ultrasonic propagation, microstructures characterization with different heat treatment processes ( normalizing, quenching / annealing, quenching plus low tempering, quenching plus high tempering ) for three steels ( 40cr, 38crmoal, gcrlssimn ) was studied experimentally by using ultrasonic methods. ultrasonic velocity, relative attenuation coefficient, and power spectral analyses were researched on the same samples respectively, on the basis of theory and experiment, the sensitivity and other characterizations of the three methods used to distinguish different microstructures were compared
根據具有多種相結構合金鋼不同熱處理轉變產物的組織特點，以及超聲波在其中的傳播規律，利用超聲波速度、相對衰減系數以及功率譜分析三種方法，對三種鋼（ 40cr 、 38crmoal及gcr15simn ）不同熱處理（正火、淬火退火、淬火+低溫回火及淬火+高溫回火）轉變產物的顯微組織進行了超聲表徵研究。 -
The distribution coefficient of re3 + ( nd3 + and yb3 ) ， the refractive index and the crystal lattice were tested. through the measured data of absorption spectrum, fluorescence spectrum and fluorescence lifetime, the spectral characteristic parameters of ( nd3 +, yb3 + ) : yp0. 1v0. 9o4 crystals were calculated and contrasted, and the advandages of them have been showed
通過測試各晶體的吸收光譜、熒光光譜和熒光壽命，分析了摻不同濃度nd3 + 、 yb3 +離子激光晶體的光譜特性，對比研究了以yv0 . 9p0 . 1o4作為基質晶體所具有的優越性和缺陷。 -
In this thesis, the spectral characteristics of a fiber grating are analyzed by using the coupled mode theory. the influences of various structural features such as the length, chirp, coupling coefficient and aperdization to the spectral characteristics were studied numerically with a transfer matrix method. the reflective spectral responses for fiber bragg gratings with different aperdization are analyzed, and the optimal aperdization is ob tained
首先論文利用耦合模理論對光纖光柵的光學特性進行了詳細的分析，在對比了龍格庫塔法和傳輸矩陣法這二種常用的分析方法的基礎上，選擇傳輸矩陣法著重研究了光纖光柵長度、啁啾系數、耦合系數以及各種切趾函數與其反射譜譜寬、反射率極值、時延、色散等特性的相互關系及影響。 -
We estimated the fusion images in both subjective factors and objective factors. the objective parameters involved entropy, average gradient, spectral divergence, correlation coefficient and the accuracy of the classification
對融合后的圖像分別從主觀和客觀兩個方面進行了定性和定量的評價，其中客觀評價分別採用了熵、平均梯度、光譜差異、相關系數以及分類精度作為評價標準。 -
The qualitative work including : research the phase trajectory of the system 、 poincare map 、 power spectral and auto - correlation. the quantitative work including : calculation of ratio of period 、 calculation of fractional dimension and coefficient of lyapunov, especially ratio of period and the maximum lyapunov exponent. the results show that chaos occurs in the movement of system
定性的研究工作有：研究系統運動的相軌圖、龐加萊映射圖、功率譜圖和自相關函數圖；定量方面的研究工作有：周期比的計算、分維數的計算和lyapunov指數的計算，並著重進行了周期比和最大lyapunov指數的計算。
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