coefficient a 中文意思是什麼

coefficient a 解釋
輔酶a
  • 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。
  • a : an 用在以母音音素開始的詞前〉 indefinite art 1 〈普通可數名詞第一次提到時，冠以不定冠詞主要表示類...
  1. Finally, numerical experiments are carried out to weigh the influence of the artificial dissipation coefficient a and the pseudo - compressibility coefficient

    另外，本文也對人工耗散系數和人工可壓縮系數對數值計算的影響進行了實驗。
  2. With distinctive opinion of value of coefficient a, it makes use of the computers " programming operation to make the value of a more accurate

    論文對三次指數平滑法中系數的取值具有獨到的見解，利用計算機編程運算，使得的取值更為準確。
  3. The variance with the criterion variable of these six factors is 56. 931 % and inner identical coefficient a ) is 0. 742, which proves that the questionnaire, in certain degree, can measure the graduates " ocse

    六因素的方差累計貢獻率為56 . 931 ，問卷的內部一致性系數為0 . 724 ，說明該問卷能夠在一定程度上測量大學生的擇業效能感。
  4. In chapter four, according to the analysis on the boundary theory and velocity field of main fluid zone of two - phase fluid pumps, the parameter equations of vane ' s modular curve of centrifugal pump are given, which contact the boundary " layer and eular theory of two - phase fluid pump by the fixing angel of vane as variable and leading into the velocity coefficient a. the results show that, in designing process of vane ' s modular curve of centrifugal pump, the determination of the total shape and parameters relates the flow properties of two - phase fluid and output ability of pump, or the design of the modular curve of centrifugal pump is the kernel of hydraulic design

    第四章依據固液兩相流泵的邊界層理論及對主流區速度場的分析，給出了離心泵葉片型線的參數方程；它是以葉片安裝角為參變數，以引入的速度系數k _ v作為中間因子，將兩相流泵的邊界層理論和歐拉理論聯系起來? ?它說明了這樣一個事實，在離心泵葉片型線的設計過程中，它的整個形態或參數的確定都關繫到兩相流體的流動特性和泵的輸出能力，或者說，離心泵型線的設計是其水力設計的核心。
  5. The fitness results indicated that coefficient a increased but coefficient bl decreased with the increase of frequency, regardless the wavelength. recent advance of effects of low intensity laser irradiation on cells were summarized in this thesis. the effects of low intensity laser irradiation on lymphocyte, macrophage, fibroblasts and the biostimulation effects of low intensity laser irradiation were included in the third part

    在第三章中，首先綜述了低強度激光對離體細胞的光生物調節作用，指出低高強度nd涅人g及其krp倍頻激光對單層成纖維細胞損傷作用和光生物調節作用的初步研究強度激光對生物細胞的刺激作用的普遍性。
  6. First, we consider an additive schwarz algorithm for the solution of ax 4 - f ( x ) 0, x when coefficient a is an m - matrix and f ' ( x ) 0. by applying the theory of weak regular splitting of matrices to the above considered algorithm, we obtain the weighted max - norrn bound for iterations. moreover, under the assumption that f ( x ) is concave, we establish monotone convergence of the considered algorithm

    本文內容如下：首先，應用加性schwarz演算法求解非線性互補問題，其中a是m陣，應用弱分解理論，我們獲得了在加權范數意義下誤差的幾何收斂速度，在f （ x ）是凹函數的假設下我們還獲得了此演算法的單調收斂性，同時我們給出此演算法的一種修改演算法，無需前面的假設，該演算法具有單調收斂性。
  7. After testing thermal conductivity ( k ), electrical conductivity ( ) and see - beck coefficient ( a ), the results demonstrate that for cosb3 nano - materials, with decreasing in grains size lattice thermal conductivity falls, electrical conductivity decreases and seebeck coefficient increases. thermoelectric performance figure ( zt ) cosbs nano - compound with grains size of 200nm has reached 0. 43

    通過對一系列不同晶粒尺寸cosb _ 3化合物的熱導率、電導率和seebeck系數的測定，討論了晶粒尺寸大小對結構納米化對熱導率、電導率和seebeck系數的影響，結果表明：隨著cosb _ 3化合物晶粒尺寸的減小，晶格熱導率_ l顯著降低，從而導致cosb _ 3化合物的熱導率的降低；電導率也有一定的降低；以及seebeck系數顯著增加。
  8. Cadmium germanium arsenide, cdgeas2, has promising advantage for its attractive nonlinear optical properties in all chalcopyrite semiconductors. it has an extremely high nonlinear coefficient, a wide infrared transparency range, but crystal of cdgeas2 has a strong absorption at 5. 5 m which related to a native acceptor - defect

    砷化鍺鎘晶體（ cdgeas2 ）是黃銅礦類半導體晶體中綜合性能最優者，其非線性光學系數和遠紅外區透過率很高，但其在中紅外區5 . 5 m有較強的吸收。
  9. The anti - l0. 6 m laser performance of fog oil smoke - screen is tested and analysed on the outfield with a far infrared laser, the extinction coefficient, a key parameter to assess the obscuring performance of smoke - screen, has been caculated and the results also has been discussed

    摘要利用遠紅外激光發射器對霧油煙幕的干擾激光性能進行了外場測試，分析了添加石墨及超細銅粉后對干擾效果的影響，計算得到了煙幕消光系數，並對結果進行了討論。
  10. Based on the thermodynamics for getting activity coefficient, a symmetry equation was established for calculating inter - diffusion coefficient. the calculated data coincide well with the experimental ones found in literatures

    T匕較而臺，二種復合材料中scs一6sic / tizainb的界面反應程度較輕，與熱力學預測結果一致。
  11. 2 ) radar incidence angle and surface roughness correction : to make radar incidence correction and eliminate the surface roughness effects, a wide range of surface parameters ( soil moisture, surface rms height, correlation length, incidence angle ) was input to the ibm model to simulate the effect of surface roughness and radar incidence angle on the sensitivity of soil moisture to the radar backscattering coefficient. a simple model was established to simulate the effects of incidence angle and surface roughness. 3 ) establishment of soil moisture change inversion model : according to a modified ibm model simulation results, the bare surface backscattering coefficients can be expressed as a funtion of the dielectric component for a given surface roughness when the surface slope greater than 2. 0, which is valid for most nature surface : in above equation, r0 is the surface reflectivity at normal incidence

    本研究中，首先利用基於微波輻射傳輸方程的微波植被模型和積分方程（ iem ）模型模擬了各種地表土壤水分含量情況下，植被覆蓋、地表粗糙度（包括地表均方根高度和相關長度） 、雷達入射角對c波段（頻率4 . 7ghz ）水平極化（ hh ）雷達後向散射系數的影響，在此基礎上，建立模型消除了植被覆蓋、地表粗糙度、及雷達入射角對雷達後向散射的影響，利用多時相50m解析度radarsatscansar雷達後向散射系數圖像反演得到了地表土壤水分變化模式信息。
  12. Secondly, for the first time, by volume average concept and reynolds time - average method, a 3d quasi - single phase mass transfer model of distillation tray is deduced by considering the effects of velocity fluctuation, concentration fluctuation and volume fraction of gas and liquid on mass transfer. a source item sc for interphase mass transfer is considered. by applying conventional method of estimating the interphase mass transfer coefficient, a formula for sc is obtained

    其次，採用體平均概念、雷諾時均化方法結合塔板氣液相互作用的實際情況首次推導了考慮速度、濃度脈動項和氣、液相含率影響的塔板三維擬單相流湍流傳質模型，源相中考慮了氣液相間傳質項sc ，並運用化工中關于相間傳質系數計算的理論，推導了sc的表達式。
  13. In this paper a perfect and flexible experimental system of low nox combustion is established firstly. the influences of the temperature of combustion, the air excess coefficient, a certain amount of vapor added in advance, the temperature of preheated air, adding microwave into gas before combustion, gas recycling combustion and the mode of combustion ( diffused and premixed ) on nox emission are analyzed respectively. the combustion of liquid petroleum gas is simulated with phoenics 3. 5

    首先建立了完善靈活的低no _ x燃燒實驗系統，在實驗系統上完成了燃燒溫度、過量空氣系數、預先加入一定量的水蒸汽、空氣預熱溫度、對燃氣預先進行微波處理、煙氣再循環燃燒以及燃燒方式（擴散式與預混式）對no _ x生成的影響分析；採用phoenics3 . 5軟體進行了液化石油氣燃燒的數值模擬。
  14. In spite of modifying coefficient, a modifying term is used to modify brandt ' s theory of sphere grain model ; this term ' s expression has been acquired, and the result is identical to biot - geertsma ' s theory in form and quantity, in which the two classics theories is in perfect harmony. it is also confirmed that the constitutive relation of carroll and n. katsube theory, and the bulk modulu of kuster scattered waves are identical to biot theory

    在工程中的絕大多數情況下，該結果與biot - geertsma理論的結果在形式及數值上幾乎完全一致，從而使這兩個不直接相關的經典理論較好的統一起來。 （ 3 ）在土動力學中常用的不排水條件下，分別證明了carroll的應力-應變關系中不排水體積模量、 kuster散射波理論的體積模量與biot - geertsma理論是完全一致的。
  15. In the first part of this thesis, on the base of analyzing the wavelet theory and discussing the wavelet coefficient, a kind of shapiro code algorithm is put forward. it efficiently organizes the wavelet coefficient and enhances the compression

    第一部分在詳細研究小波理論的基礎上對小波系數的組織形式進行了討論，提出改進型shapiro編碼演算法，更有效的組織小波系數並對編碼序列進行一次預編碼，提高了壓縮比。
  16. The state development and reform commission said the gini coefficient, a measure of income inequality, had reached 0. 47 for china, up from 0. 29 two decades ago

    據國家發改委介紹，目前我國衡量收入差距的「基尼指數」已達到了0 . 47 ，比20年前高0 . 29 。
  17. This a / f controller could quickly response and regulate the lpg injection time to meet different engine running conditions and make excessive air coefficient ( a ) in normal operation range of the three - way ca alyst system ( twc )

    該控制器能根據不同的工況快速反應並調整燃料噴射占空比，使過量空氣系數符合三效催化轉化器有效工作范圍（ = 1 0 . 005 ） 。
  18. Analyze industrial distribution with area gini coefficient - a case of jiangsu province

    以江蘇為例的考察
  19. The design principle and data flow of process quality control is discussed. the paper then puts forward an algorithm of control principle in process quality control system and the modification coefficient ( a ) in the control chart of spc. a prototype for process quality control system is designed and implemented

    研究了工序質量控制系統的設計原理，工序質量控制系統的數據採集與處理，工序質量控制系統中監控原理的演算法，提出適應erp環境的spc控制圖中的修正系數的原理與方法，並設計與實現了一個工序質量控制與分析系統。
  20. The proposed algorithm lows the complexity by choosing decision delay in advance and then making solution of the equalizer tap coefficient, a new decision delay choice method is proposed, solution by using weight method, diagonal matrix transform, z extension and a new energy restrictive condition which restrains noise enhance, a new decision delay choice method is proposed, the simulation result shows that the proposed algorithm has better equalization effect and enhanced performance comparing to the general mmse algorithm, simulation research on the precision and dynamic scope of parameters in digital realization time domain equalization algorithm, design software and hardware of time domain equalizer. fourthly, there exist a lot of interfere in dsl line, especially, dsl works in multi - user mode, the near end interference is serious

    通過先選擇判決時延，再進行時域均衡器抽頭系數求解的方法降低了時域均衡計算復雜度；對于均衡器抽頭系數的求解使用了加權技術，通過對角矩陣變換， z擴展，使用不同的能量約束條件對演算法求解，結果表明這種約束有效的抑制了噪聲增強，與常用刪se比較，該演算法有更佳的均衡效果，演算法性能得到了提高：論文還對數字化實現時域均衡演算法中每一部分參數的精度、變量的動態范圍進行了模擬研究，對時域均衡的軟硬體實現進行了設計。
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