energy level distribution 中文意思是什麼

energy level distribution 解釋
能級分佈
  • energy : n. 1. 干勁，活力。2. （語言、行為等的）生動。3. 〈pl. 〉 （個人的）精力；能力。4. 【物理學】能，能量。
  • level : n 1 水平儀，水準儀；水準測量。2 水平線，水平面；水平狀態；平面，平地。3 水平，水準；水位；標準；...
  • distribution : n 1 分配，分發，配給；分配裝置[系統]；配給品；配給量；【經濟學】配給方法，配給過程；分紅；【法律...
  1. In this thesis, we demonstrate the study of si - based light emitting materials and its importance in si - based photonics integration. we discussed mainly the gain, differential gain, threshold current of si - based quantum - dot laser and the dependence of threshold current on temperature from discrete energy level of three - dimension confined quantum - dot and state density distribution of 5 - function

    本文闡述了si基光發射材料的研究進展及它在硅基光電子集成中的重要地位，從三維受限量子點的分立能級和函數狀的態密度分佈入手，著重討論了si基量子點激光器的增益、微分增益、閾值電流及閾值電流的溫度特性。
  2. According to the fact that the basic features of apalmprint, including principal lines, wrinkles and ridges, havedifferent resolutions, in this paper we analyze palmprints using amulti - resolution method and define a novel palmprint feature, whichcalled wavelet energy feature, based on the wavelet transform. wef can reflect the wavelet energy distribution of the principal lines, wrinkles and ridges in different directions at different resolutions scales, thus it can efficiently characterize palmprints. this paperalso analyses the discriminabilities of each level wef and, according to these discriminabilities, chooses a suitable weight for each levelto compute the weighted city block distance for recognition. theexperimental results show that the order of the discriminabilities ofeach level wef, from strong to weak, is the 4th, 3rd, 5th, 2nd and 1stlevel

    作為對現有人體生物特徵識別技術的重要補充，掌紋識別有著其獨特的優點：掌紋比指紋含有更多的可區分信息掌紋採集設備的價格比虹膜採集設備的價格要低廉得多掌紋特徵比簽名特徵更為穩定掌紋識別可獲得比人臉識別更高的識別精度掌紋含有獨特的線特徵包括主線和皺褶，這些線特徵具有很強的區分能力，並可以在低解析度圖像中提取出來可以將手掌上的各種特徵融合在一起建立一個高精度的生物識別系統等。
  3. Energy level distribution of three - body harmonic coupling system in three - dimension space

    三維空間中三體相互作用的能級分佈
  4. The structure and energy level of the al clusters include 2 atoms to to 7atoms was calculated with ab initio method. discrete energy levels were found in the clusters, which is different from the energy level distribution of bulk materials

    計算方法是採用gaussia98程序的b3lyp的方法和全電子的基函數6 - 311 + g * ，對al2 ? al7小團簇的結構和能級進行了abinitio計算。
  5. The entropy or number of states of system or subsystem are closely related to interaction of particles and energy level distribution, therefore, to study the temperature dependence of the specific heat may supply some important and useful microscopic information which may play an important role in understanding electronic structure, density of state, phonon spectrum etc. the specific heat measurements at low temperatures also play important roles in the finding of the third law of thermodynamics, the quantum theory of solid and bcs theory for superconducting etc. moreover, specific heat measurements help us to understand the different kinds of phase transitions ( such as : structural phase transition, magnetic phase transition, superconducting phase transition etc. ) and the scaling behavior near the critical point

    系統、子系統的熵或微觀狀態數與微觀粒子間的相互作用及能級分佈密切相關，因此研究比熱與溫度的依賴關系能夠提供被測量系統許多極其有用的微觀信息，對理解固體的電子結構、電子態密度、聲子譜等起著十分重要的作用。低溫比熱的測量和研究對熱力學第三定律、固體量子理論和超導bcs等理論的建立起到了積極的推動作用。比熱研究還有助於認識各類相變如結構相變，磁性相變，超導相變等及臨界點附近的標度規律。
  6. The quenching centers aroused by mn2 + introduction merely quench the orange emission of colloidal zns : mn2 + nanocrystals. the quenching process of this kind of quenching centers, which reduce the energy of 4t1 level rather than that of conduction band, is different from that of the quenching centers eliminated by zn2 + introduction. the quenching data is analyzed considering the distribution of mn2 + additives adsorbed at the surface of colloidal nanoparticles

    Mn ~ （ 2 + ）表面修飾引起的表面猝滅中心只對橙光發射有猝滅作用，這些猝滅中心和外加zn ~ （ 2 + ）消除的表面猝滅中心猝滅行為不同，它們只減少來自內部mn ~ （ 2 + ）雜質~ 4t _ 1能級上的，而不是zns基質導帶上的能量。
  7. Expanding the system ' s hamiltonian to a real symmetric matrix in an appropriate orthogonal basis vector and then diagonalizing it, we get the energy spectrum of the system and calculate the energy level spacing distribution function and the spectral rigidity. then we study the statistical character of the energy spectrum under the changing of magnetic field intension and find that the system ' s motion transfers from regular to chaos gradually

    將系統的哈密頓量在一個適當的正交基矢下展開並對角化，得到系統的能譜，分別計算系統能譜的能級間距分佈函數和譜剛度，研究了該系統量子能譜的統計特徵隨磁感應強度大小的改變而表現出的系統運動由規則到混沌的漸進變化。
  8. The reactive power optimization of a radial distribution system can efficiently minimize the real power losses and improve voltage level of it, so that the yearly running charge will be reduced and the quality of power energy can be increased

    配電網無功優化可以有效地降低網路有功損耗，提高系統的電壓合格率，從而降低網路運行費用，提高供電質量。
  9. Based on the practical condition of the heating distribution network in beijing city, this paper systematically discusses the application of the neural network in the field of heating burden prediction and dispatching, include : based on city heating system, systematically analyzing the current condition of the heating system in our city and the development of the international heating technique, discussing the tendency in the field of the domestic heating system. at the same time, constructing a heating model characterized by distribution, ranking structure, intelligentized and favorable practicability and reliability, which adapts to the situation of our city and greatly enhances the level of automation and energy saving

    本文從北京市供熱管網的實際出發，系統地討論了適合我市實情的神經網路技術在供熱管網預測和調度中的應用研究，主要進行了如下幾個方面的工作：以城市供熱系統為對象，綜合分析了我市集中供熱的現狀，結合當前國際供熱技術的發展，分析了我市集中供熱的發展趨勢，並提出了一種適合我市實情的供熱模型，該模型具有分散式、遞階結構、智能化以及良好的實用性和可靠性等特點，可極大提高集中供熱的自動化水平和節能效果。
  10. Therefor, in the light of theory and methods of karst hydrogeomorphology and the knowledge of transformation, balance and variation of matter and energy in karst drainage basin, we can examine stone forest within a specific scope of time and space, and reveal the mechanism and the development model of stone forest with the help of the principle of the mutual response processes among base - level, water flow and forms. just based on the understanding above, the paper, with a special reference to the lunan stone forest which is the best developed one in china, discusses the hydro - geomorphlogical structure of the bajiang river, geomorphological types and spacial distribution feature of the stone forest, and studies the erosion rate on the top of stone forest, soil erosion rate, sub - soil dissolution rate and their combined influences on the evolution of stone forest, furtherly brings forward and demostrates the " tri - level erosion " mechanism for the development of stone forest

    正是基於這種認識，本文以我國石林發育最完美的路南石林為研究對象，研究了巴江喀斯特流域的水文地貌結構特徵、石林的形態類型及其空間分佈特徵；探討了石柱頂部的剝蝕速率（ a ） 、表土剝蝕速率（ s ） 、土下溶蝕強度（ c ）及其組合對石林發育的影響，提出並論證了路南石林發育的「三重剝蝕」機制；通過對石林發育必備條件的剖析，以及對巴江喀斯特流域演變階段的定量研究、水文地貌系統的空間耦合分析，探討了巴江喀斯特流域的演變與路南石林發育間的關系，並結合該流域的演化史，提出了巴江喀斯特流域演變與路南石林發育的模式。
  11. The primary problems existing in industrializing large - scale distillation equipments are pointed out, the magnifying & energy saving distillation technology developed by tianjin university, such as low liquid - level gradient technology, uniform liquid - vapor distribution technology, anti - clogging technology and a series of tower internals technology, on the basis of modern mass transfer theory hydrodynamics calculation hydrodynamics & process system engineering theory, axe introduced

    針對蒸餾裝置大型化過程中面臨的問題，本文提出了蒸餾過程大型化理論和節能策略，開發出了低液面梯度技術、氣液均勻分佈技術、抗堵塞技術以及與此配套的一系列塔內件技術，形成了關鍵技術的系統集成，顯著降低了過程能耗。
  12. Parking guidance system, which aims at promoting the efficient utilization of park lots and nearby roads, utilize advanced gps, computer, electronics, communication and gis to realize collection, transmission, processing and real - time distribution of parking information. pgs can provide drivers with the location, using status, type of parking lots near the destination, the travel route to these parking lots and related road traffic information via many method, such as vms, broadcasting, telephone, internet, in - vehicle equipment, to guidance drivers to park conveniencely and reasonably. pgs can reduce the additional traffic volume, traffic congestion, time and energy wastage, environment pollution due to searching parking space blindly, promote the utilization rate of parking lot, enhance economic benefit, social benefit and environment benefit, upgrade the level of urban traffic information services

    具體研究內容如下: 1 、利用bp神經網路及其兩種改進演算法實現了有效停車泊位預測; 2 、提出了基於停車場選擇的停車誘導路徑優化思想、演算法; 3 、總結了國外停車泊位預定技術的研究現狀、停車預定模型，並設計了停車預定功能實現的物理框架; 4 、給出了可變信息板信息發布的發布策略，並提出了停車場「空、滿」狀態判定方法; 5 、闡述了各種高效的信息傳輸方式在停車誘導系統中的應用框架，給出了基於gprs的停車誘導系統通信方案設計。
  13. It includes three steps : first, the experimental data in exfor format is evaluated. then, the optical potential parameters are got by using the code apom94, and the direct inelastic discrete energy level reaction cross sections and angular distribution of every isotopes are got by using the code dppm. thus the ultimate commended data, which coincide with each other, can be obtained by using code nunf

    其具體過程是先對exfor實驗數據進行評價，給出實驗數據評價值，然後，利用程序apom94計算光學位，利用dppm程序計算直接非彈分立能級反應截面和角分佈，在此基礎上，利用nunf理論計算程序獲得各同位素本身數據以及各同位素與天然元素數據自洽的最終推薦值。
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