shifted function 中文意思是什麼
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Abstract : the effect of correction of self - consistent potential on electronic structure in simple cubic nanocrystal particles is calculated by means of the green ' s function method in the tight - binding approximation, taking only the nearest neighbor matrix elements into account. the numerical results show that the electronic energy spectrum is shifted, the chemical potential is not equal to the atomic energy level, the electronic density at each lattice point is changed, and the variation of electronic density at surface lattice point is the largest
文摘:在緊束縛近似下，只計及最近鄰的矩陣元，採用格林函數計算了自洽勢修正對簡立方納米晶體顆粒的電子結構的影響，發現電子能譜發生了移動，化學勢不等於格點原子能級，各格點的電子密度也發生了變化，其中以表面格點的電子密度變化最大。 -
Abstract : bridge function and generalized bridge function are all three - valued function, and are made by initial sequence according as copied or shifted ways. they include some familiar orthogonal function of non - sine, such as walsh function. this paper briefly introduced some research advance on this subject, emphasized to introduce the copy theory and generalized copy method. the process of making ( generalized ) bridge function, its property and application, were introduced briefly
文摘:橋函數和廣義橋函數均為三值函數系，都是將初始序列經復制方式和移位方式變換后而形成的.它們包括了一些常見的非正弦正交函數，如沃爾什函數和方波函數等.簡要介紹了近10年來北京航空航天大學通信與電子系統博士點在非正弦正交函數方面研究的一些新進展，重點介紹了復制理論和廣義復制方法，橋函數、廣義橋函數的復制生成方法、性質及其應用等專題 -
With the development in depth of china ' s present educational reform, the higher education appears the following inspiring tendencies : the schools run according to the need of market rather than the planning ; the system of running schools developed from the single state - owned to the multiple forms ; the purpose being in the form of combination of public and industry replacing the public form ; the period of learning expanded from the limited to the lifelong ; the way of running schools shifted from the close to the open ; professional training converted from the specialized to the intellect and qualitative ; the investment in education coming from the multiple - way other than the single - way ; the process of teaching changed from the same model to the variety approaches ; and the ideological and political work in the colleges and universities developed complicated and systematic ; the function of the colleges and universities being in the form of education, research and service rather than only the former two ones
摘要當前我國的教育改革正在向縱深發展，高等教育出現了令人振奮的發展勢頭：從按計劃辦學向按市場需要辦學發展；辦學體制從單一國有化向多樣化發展；從公益事業型向公益、產業相結合型發展；學習年限從有限型向終身型發展；辦學模式從封閉型向開放型發展；人才培養由專業型向智慧型、素質型發展；教育投資從單渠道向多管道發展；教學過程從模式化向多樣化發展；高等學校思想政治工作向復雜化、系統化發展以及高等學校從教育、研究功能向教育、研究及服務功能發展。 -
The proposed driving circuit includes a low - pass filter circuit 、 feedback circuit 、 signal generated circuit 、 phase shifted circuit and power inverter circuit. a ti cooperation ' s dsp ( tms320lf2407a ) is chosen for the drive and control system based on the characteristics of usm, the interface circuit 、 each function ’ s flow chart and algorithm program are designed
根據usm的特點，選取一款專用於電機控制的dsp晶元tms320lf2407a ，設計了硬體介面電路、各功能部分的流程圖及控制演算法程序，以ccs為編譯環境，進行電機整個控制系統的軟體編寫與調試。 -
Genre analysis has recently been widely applied in various disciplines. with the development of the discourse analysis, research into it has shifted from description of discourse on the surface level to interpretation of macrostructure and communicative function on the deep level
這是因為隨著語篇分析等學科研究領域的深入，人們不再滿足對語篇進行純粹的語言層面的分析，而是轉向致力於考察人們是如何利用語言這一工具實現自己的社會目的及交際意圖。
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