energy band theory 中文意思是什麼
energy band theory
解釋
能帶理論-
Topics covered include : crystal lattices, electronic energy band structures, phonon dispersion relatons, effective mass theorem, semiclassical equations of motion, and impurity states in semiconductors, band structure and transport properties of selected semiconductors, and connection of quantum theory of solids with quasifermi levels and boltzmann transport used in device modeling
被覆蓋的論題包括：晶格、電子能帶結構、聲子色散關系、有效質量理論、半經典運動方程和半導體中的非純態、選擇性半導體的帶結構和輸運性質固體量子理論與準費米能級以及用於器件建模的玻爾茲曼輸運理論之間的聯系。 -
The data regression processing method based on fuzzy mathematics theory is proposed to get the middle frequency band simulating result based on finite element result of low frequency band and statistics energy analysis result of high frequency band to get a complete frequency band result and solve the middle frequency band result processing problem in the simulation of floating raft isolation system
摘要為了解決浮筏隔振系統模擬結果的中間頻段數據處理問題，基於浮筏隔振系統低頻段的有限元分析結果和高頻段的統計能量分析結果與試驗結果的對比分析，提出採用模糊理論進行數據回歸處理來得到中間頻段的模擬結果，從而提出一種估算浮筏隔振效果的方法。 -
According to theory of semiconductor energy band, the working principle of mos capacitive oxygen micro - sensor was elucidated. 5
設計mos電容式氧氣微傳感器，並從半導體能帶的角度出發，闡明其工作原理。 -
According to the present situation and developing trends on condition monitoring and fault diagnosing of hydroelectric sets at home and abroad, and taking the technique of data fusion diagnosis hydroelectric sets as theme, this dissertation researches into data fusion fault diagnosis method based on dempster - shafer theory, and applies this technique to hydroelectric sets vibration fault diagnoses for the first time, and presents that using sub - band energy of vibration frequency to reflect the vibration intensity of hydroelectric sets
本文根據國內外關於水電機組狀態監測與故障診斷研究的現狀與發展趨勢，以機組振動故障的信息融合診斷技術為研究主題，對基於dempster - shafer證據理論的信息融合故障診斷方法進行研究，首次將該方法應用到水電機組振動故障診斷中，並提出了用機組振動各頻率的子帶能量反映其振動強度的方法。 -
This paper is described wavelet transform theory, mother wavelet choice, the method to filter signal by wavelet transform and the result, prospered a way to extract feature originated from wavelet theory, which using wavelet packet analyzing method to subdivide signal both in low frequency and high frequency field, and consider energy of every layer as feature in frequency field, and in conjunction with the detailed analyzing character of wavelet packet in time - frequency plane, consider several minimum or maximum points in the lowest frequency band a s features in the time field
本文介紹了小波變換的理論、基小波的選擇和利用小波變換進行信號濾波的方法和濾波處理結果，並提出了一種基於小波理論的新的特徵值提取方法。即利用小波包分析方法將信號在低頻、高頻段作進一步的細分，以各層分解的能量作為信號的頻域特徵值，以最低頻帶的極值點作為時域特徵值，這樣的特徵值選取方法較全面的反映了信號的時-頻特徵，優于傳統的傅里葉分析方法。
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