dispersion rate 中文意思是什麼

dispersion rate 解釋
分散率
  • dispersion : n 1 分散，散開；散布，傳播；離散。2 【物理學】彌散，色散；【化學】分散作用；被分散物；分散相，分...
  • rate : n 1 比率，率；速度，進度；程度；（鐘的快慢）差率。2 價格；行市，行情；估價，評價；費，費用，運費...
  1. Firstly, second harmonic component ratio and dead angles of two phase inrush ' s dispersion in three - phase transformes are acted as input variable. secondly, the method applies improved algorithm based on the original algorithm of multi - layer forward back propagation network, that is to say, adding last variational effect of weight value and bias value to this time and making use of variable learning rate. at the same time, this method also adopts dynamic form in the number of hidden floor node

    首先，文中將三相變壓器兩相涌流差流的二次諧波含量比和間斷角作為網路的輸入變量；其次，利用對原有bp網路訓練演算法基礎上的改進型演算法（即在計算本次權值和閾值的變化時增加上一次權值和閾值變化的影響以及採用變學習率，與此同時隱含層神經元個數採用動態形式） ，通過樣本訓練使網路結構模型達到最優。
  2. The tm mode dispersion equation of the coaxial bwo in the infinite guiding - magnetic field is derived and solved numerically. the dispersion curve, operating frequency, and the growth rate are obtained

    採用線性理論推導了無窮大引導磁場下的同軸tm模式色散關系式，並編程數值求解了一定條件下的色散曲線、時間增長率、空間增長率。
  3. The general nonlinear propagation equations of four - lightwaves in birefringent fibers are deduced. the characteristics of polarization mode dispersion in 4 + 10gb / sdwdm system in dispersion - flattened fibers is studied. our results show that pmd exerts a detrimental influence on 4 x logb / sdwdm system in limiting transmission rate and the channel numbers

    本論文研究波分復用（ wdm ）系統中偏振模色散的影響，主要工作包括下面兩個部分：一、導出了四波長光波在雙折射光纖中傳輸所滿足的一般非線性耦合方程；在此基礎上，研究色散平坦光纖中4 10gb sdwdm系統的偏振模色散特性，並且進一步研究了偏振模色散對不同通道間隔的4 10gb sdwdm系統的影響。
  4. In section one, we analyze the mechanism of lwi gain, and study the effects of the rabi frequency q of the driving field, the injection rates ratio rb / r ~, the exit rate r0, the decay rates ~ and rab between atomic levels, as well as 3 incoherent pump rate r on the gain without inversion, dispersion and population difference of the system. in section two, we discuss the effects of the detuning of the driving field and the probe field on the gain

    在第一節中分析了無粒子數反轉激光增益產生的機制、研究了驅動場的rabi頻率、粒子注入速率比值r _ b / r _ c 、粒子退出速率r _ o 、能級間的自發衰減速率r _ （ c - b ） 、 r _ （ a - b ）和非相干泵浦速率r對增益、色散和粒子數差的影響；第二節討論了驅動場和探測場的失諧對無粒子數反轉激光增益的影響。
  5. In real life it is classified, and concrete representation is put forward through three criteria concerning graduates " employment rate, educational benefit dispersion grade, and overeducation occurrence rate. the uncertainty of the relation betw

    對現實生活中教育與就業關系的不確定性進行了歸類，提出通過畢業生就業率、教育收益離散程度、教育過度發生率三個指標來進行具體表徵。
  6. Second, the uncertainty of the relation between education and employment can be represented by some criteria such as graduates " employment rate, educational benefit dispersion grade, and the level of overeducation occurrence rate. third, personal choice, school, work - force market and work place are significant factors that affect the uncertainty of the relation between education and employment. fourth, in a society of market economy, the uncertainty of the relation between education and employment is a " sword with double blades ", thus it is necessary to avoid the disadvantages of the uncertainty of the relation between education and employment from the perspective of institutional layout

    教育規模擴展和市場機制的共同作用，使得教育與就業之間也存在著不確定性； （ 2 ）教育與就業關系的不確定性可以通過畢業生就業率高低、教育收益離散程度、教育過度發生率高低等指標來進行表徵； （ 3 ）個人選擇、學校、勞動力市場和工作場合是影響教育與就業關系不確定性形成的重要因素，貫穿在教育與就業發生關系的全過程； （ 4 ）在市場經濟社會，教育與就業關系的不確定性是一把「雙刃劍」 ，因此有必要著重從制度設計的角度，對教育與就業關系的不確定性進行規避； （ 5 ）當前我國教育與就業關系的不確定性也開始顯現。
  7. Through analyzing the effect of temperature and nitrogen on crude oil viscosity the influences of different nitrogen injection volume and injection modes on steam displacement are contrasted, the mechanism of nitrogen - assisted steam stimulation is clarified, which includes : heat carrying capacity is raised, the saturation of remaining oil is reduced after nitrogen - assisted injection is made ; crude oil flow is enhanced because of nitrogen compression and dispersion and the change of oil flow shape ; water back - production rate is improved by expanding the steam sweep volume and compensating in - situ energy ; steam distillation effect is enhanced

    通過分析溫度、氮氣對原油粘度的影響，對比不同注氮量、不同注入方式等對蒸汽驅油效果的影響，弄清了氮氣輔助蒸汽增產的機理主要表現在：氮氣輔助后增加攜熱能力，降低殘余油飽和度，氮氣的壓縮膨脹作用分散和改變了原油流動形態，增強了原油流動性；擴大蒸汽的波及體積，補充地層能量，提高回採水率，強化蒸汽蒸餾效應。
  8. At the same time, dispersion of different stokes number particles influenced by the ordered large - scale turbulent structures of the carrier gas phase was investigated. and the following " conclusion was drawn : particles of mediate stokes number mainly concentrated in the outer boundary region of large scale eddies, and they had the nignest dispersion rate ; particles or little stakes number mainly lay in the core region of the eddies, and they had the lest dispersion rate ; though particles of large stokes number distributed throughout the eddy structures

    同時還模擬研究了不同stokes數顆粒在二維流場旋渦擬序結構作用下的運動擴散特性，詳細描述了不同stokes數顆粒在流場中的空間分佈規律，認為：中等stokes數顆粒集中於流場旋渦的外沿區域，在流場空間中的擴散率最高；小stokes數顆粒集中於流場系列旋渦的渦核區域，在流場空間中的擴散率最低；而大stokes數顆粒則遍佈於流場旋渦渦核和渦外沿區域。
  9. The dispersion and diffusion of the effective nickel plating solution were enhanced by adding a small amount of rare earth compound, the depositing rate, hardness, anti - wear and the surface quality of the coating were accordingly improved

    摘要通過在快速鎳電刷鍍液中加入少量稀土化合物，改善鍍液的分散能力和深鍍能力，提高鍍層刷鍍速度，從而增加鍍層的硬度和耐磨性，改善鍍層表面質量。
  10. In chapter 4, we study nonlinear theory of the open v - type system with two - color incoherent pump. in this chapter, we discuss the conditions for the onset of lwi and the stability of the system in the limit of strong driving field, and the effect of incoherent pump rate rt on the gain, dispersion and population differences. we also discuss the effect of nonlinearities and the effect of pumping rate threshold of the pumping field

    接著第四章討論雙色非相干泵浦系統的非線性理論，分析了強驅動場情況下的lwi產生的條件和穩定性、非相干泵浦速率r ~ 1對增益、色散和粒子數差的影響；討論了該系統的非線性效應和非線性對非相干泵浦速率r ~ 1與r閾值關系的影響。
  11. In chapter 2, we analyzed the effect of the driving field phase fluctuation on the gain and dispersion and population differences in an open v - type three - level non - inversion lasing system and then discussed the effects of the incoherent pumping rate, the ratio of the atomic injection rates, the atomic exit rate, the rabi frequency of the probe and driving fields and their corresponding detuning on the gain, dispersion and population differences of the system, and got some important conclusions different from those in closed or other open systems

    第二章討論了驅動場的相位漲落對開放的v型三能級無反轉激光系統的影響，根據解析解的數值計算結果討論了非相干泵浦速率、粒子注入速率之比、粒子退出速率、探測場和驅動場的rabi頻率和相應失諧對系統增益、色散和粒子數差的影響，得到了一些不同於封閉的v型系統及其他開放的無反轉激光系統的重要結論。
  12. In chapter 3, we studied the effect of gaussian transverse profile for the driving and laser fields on lasing without population inversion ( lwi ) in a closed v - type system and an open v - type system. moreover, we discussed also the effect of the unsaturated gain coefficient, the cavity - damping rate, the ratio of the atomic injection rates and atomic exit rate on the corresponding systems. in chapter 4, we mainly discussed the effect of doppler broadening on the gain, dispersion and the frequency up - conversion of the open v - type lwi system and compared the differences and the same between the open system and the corresponding closed system

    發現： （ 1 ）在考慮doppler展寬的情況下，通過選取合適的實驗室條件（比如合適的原子環境溫度等）可得到合適doppler展寬值，從而使系統獲得最佳增益； （ 2 ）要想實現系統的頻率上轉換，同時又要獲得足夠強的無反轉激光增益，則系統頻率轉換比不能選取的太大； （ 3 ）對于開放系統，比較小的粒子注入速率比與退出速率對產生無反轉激光是有利碩士學位論文摘要的： （ 4 ）由於dopp1oy展寬的存在，當探測場與驅動場的傳播方向相反時，增益在探測場失諧的某一段區域產生振蕩，且振蕩的振幅、頻率失諧范圍的大小與dopper展寬的取值有關。
  13. The influence of double - push accelerated velocity, spin - rate regularity and unfolding fins on air rocket dispersion and the mechanism of decreasing of air rocket dispersion are also studied respectively

    分別研究了雙推力加速度，轉速規律和尾翼延時張開，對地面火箭彈和航空火箭彈散布的影響，以及減小航空火箭彈散布的機理。
  14. Using method of sumt and powell, the thesis carries out optimization design for air rocket with double - push accelerated velocity and spin - rate regularity, which dramatically decreases air rocket dispersion. in the end, some valuable conclusions are achieved for application

    綜合利用雙推力加速度，轉速規律，同時採用內點罰函數法和powell共軛方向法，對航空火箭彈的主要參數進行優化設計，實現了大幅度減小航空火箭彈散布的目的，得到了一些有應用價值的結論。
  15. The main part and key technique of the cpa system is study : the generation of the femtosecond laser pulse is study, the modulation and maintenance of the ti : s laser is learned ; the types of the measurement for ultrashort laser pulse is generalized and the interferometric autocorrelation is expatiated ; the varieties of the stretchers is sum up and aberration - free stretcher is calculated and optimized to improve the stretching ratio ; the pulse selection is analyzed and a single pulse can be selected successful from the pulse train at a repetition rate of 82mhz ; the kinds of the amplifier in cpa system is gathered up, the eight - pass pre - amplifier and a good many effects in it is investigated. finally, the second, third and fourth - order dispersions in cpa system is analyzed systemicly, and the according means for dispersion compensation is worked out

    對cpa系統的主要環節及關鍵技術進行了研究：掌握了鈦寶石激光器的調節和維護技術，較深入地研究了飛秒激光脈沖產生的機理，其中對群速色散、自相位調制、自鎖模等問題進行了詳盡的分析；總結了超短激光脈沖的測量技術，重點研究了干涉自相關測量法；在總結展寬器類型的基礎上，對無象差展寬器進行了理論計算、優化設計，提高了展寬倍數；深入論述了脈沖列的選單問題，熟練掌握了脈沖選單技術。
  16. The deviation value was used to characterize the inhomogeneous degree of concentration fields, and the attenuation rate with time was used to characterize the injection dispersion performance of flow field

    以此方差近似表徵了示蹤劑濃度場的非均勻度，其衰減規律可用於定量描述振蕩流場的注入分散特性。
  17. 2. effect of the viscosity ratio, mterfacial adhesion, processing conditions and composition on the dispersing morphology and properties of pp / eoc blends was investigated. low viscosity ratio and high shear rate during processing were found to produce fine and uniform dispersion of eoc in pp matrix, while low viscosity ratio, high interfacial interaction, good fluidity of elastomer and high shear rate in molding process resulted in fibril dispersion, which afford a guide for controlling the morphology of pp / eoc blends

    研究了粘度比、界面相互作用、加工條件和共混比例等因素對pp eoc體系分散形態和性能的影響，發現粘度比小和加工過程中剪切強度大有利於彈性體在基體中分散均勻細化；粘度比小、界面相互作用強、彈性體本身的流動性好及成型時受到的剪切應力大，使彈性體相易變形，沿流動方向取向呈纖，闡明了各因素對形態影響的作用機制，這對pp eoc共混物的形態控制具有重要的指導作用。
  18. Methods the solid dispersion of estradiol was prepared using pvp k30 as a carrier by the solvent method ; dissolution and dialysis were used to compare the release rate between estradiol capsules and estradiol tablets respectively

    方法以聚維酮k30為載體，溶劑法制備雌二醇固體分散微粒；採用溶出度測定儀和動態透析2種方法分別評價優化后的處方及對照片劑的體外藥物釋放情況。
  19. In order to have the better dispersion, the nanometer antibacterial additive is studied in this paper. these additives can be filled in the coatings very conveniently, and even when the adding amount is as little as 2 percent, the coating can have better antibacterial effect, and the antibacterial rate can reach 99. 97 percent

    為使納米材料在塗料中具有更好的分散性，以便改性塗料的性能更為優越，本文研究了經過預分散的抗菌納米復合漿料，這種漿料可以很方便地添加到普通水性塗料中，在添加量很少時（ 2wt ）即可達到很好的抗菌效果，此時抗菌率達到99 . 97 。
  20. Correlation studies of heart rate variability, ventricular late potential, qt dispersion and left ventricular ejection fraction in coronary heart disease patients

    間期離散度及左室射血分數相關性研究
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