極小曲線 的英文怎麼說

中文拼音 [jíxiǎoqūxiàn]
極小曲線 英文
minimal curve
  • 極 : i 名詞1 （頂點; 盡頭） the utmost point; extreme 2 （地球的南北兩端; 磁體的兩端; 電源或電器上電流...
  • 小 : Ⅰ形容詞1 （體積、面積、數量、強度等不大） small; little; petty; minor 2 （年紀小的; 年幼的） youn...
  • 曲 : 曲名詞1 （一種韻文形式） qu a type of verse for singing which emerged in the southern song and ji...
  • 線 : 名詞1 （用絲、棉、金屬等製成的細長的東西） thread; string; wire 2 [數學] （一個點任意移動所構成的...
  • 曲線 : [數學] curve; bight; bought; profile; net曲線板 french curve; irregular curve; curve board; splin...
  1. The ground will not have time to polarize completely and the decay will have a smaller amplitude.

    地層還來不及充分極化，衰減曲線的幅度將比較小。
  2. In acid copper sulphate solution, the nc copper has a more negative corrosion potential which is decreasing with reducing the grain size and diffusion impedance was only found in the as - prepared and as - annealed at 180 ? nc copper due to the diffusion within the pores and channels on the surface. both the tafel plots and eis study demonstrated that the nc copper exhibits a higher corrosion current and lower polarization resistance than its mc couterpart

    在酸性硫酸銅溶液中，納米晶銅的腐蝕電位比微米晶銅要負，並且隨著晶粒尺寸的減小而降低。 eis研究表明，未退火的和180退火的納米樣品中發現了擴散阻抗，與表面孔洞和通道中的擴散有關。極化曲線外推法和電化學阻抗研究都表明納米晶銅的腐蝕電流比微米晶銅高，而極化電阻要低。
  3. The scaling relations of conduction time and opening time with the plasma density, which are computed by a series of simulation results, show that, influence of plasma density on conduction time is greater than opening time. influence of cathode em itted electrons on conduction process, which is found to be more important when initial plasma density is low, is dependent of the initial plasma density. the penetration of a magnetic field into cylindrical middle - density ( 1013 / cm3 ) c + + and h + plasma with uniform and parabolic density profile, are examined with aid of pic simulation

    模擬得到的低密度（ 10 ~ （ 11 ） cm ~ 3 10 ~ （ 13 ） cm ~ 3 ）條件下導通和斷路時間與等離子體密度的定標關系曲線顯示：密度對于導通時間的影響遠大於對于斷路時間的影響；陰極電子對于peos導通過程的影響程度與初始等離子體密度有關，初始密度越大，陰極電子的影響就越小。
  4. The soil plug has an important effect on the pile driveability, and the pile diameter has an important effect on the property of soil plug, too. then the plugged effect judging method and nonlinear model of soil plug of the large ( super large ) diameter, super length, deep penetration pile have been established. hyperbolic model of soil plug was also proposed to calculate the inside static resistance

    3 .土塞對大直徑、超長樁的可打入性有重要影響，而樁徑大小直接影響土塞特性，本文建立了大直徑（超大直徑） 、超長、深貫入樁土塞閉塞效應判斷方法和土塞非線性雙曲線計算分析模型，並提出了「內側極限摩阻力動態分佈」模式。
  5. All analysis and simulations results indicate several methods improving the insulation recovery of spark gap switch : ( 1 ) using the gas with good thermal conductivity, such as h2 and sf6 ; ( 2 ) using the gas flow ; ( 3 ) utilizing the v / p cure ; ( 4 ) modifying the geometry and size of the electrode ; ( 5 ) using the gas with good electronegativity, such as sf6. some experiments on the multi - pulse operation of high power spark gap switch are carried out. the insulation recoveries of switch without and with gas flow are both investigated

    結合理論分析和模擬結果，提出了氣體火花開關多脈沖運行特性可採用如下方法: （ 1 ）使用導熱性能好的氣體，如h2 、 sf6等; （ 2 ）採用吹氣的方法; （ 3 ）增大氣壓，在電極表面增加細小結構，構造平穩的v / p曲線; （ 4 ）改良開關電極結構和尺寸，採用奶頭-半球結構的電極; （ 5 ）使用電負性強的氣體作為開關絕緣氣體，如sf6 。
  6. Based on analyzing the relations among the power of function, the path of beeline or curve, and the rank of infinitesimals, a method of path selection on some inexistence of weight limit is developed, i. e. the power control method of the infinitesimal rank

    摘要通過對函數的冪次、直線路徑與曲線路徑、無窮小的階三方關系的分析，提出了一類證明重極限不存在的路徑選取方法無窮小的階的冪次平衡法。
  7. The research can offer some important references to the population ecology of endangerous plant, too. based on the dates of two different circumstances, two standard life tables of form. taais chinensis var. mcarei population are founded by mathematical technique according to premising with " space deducing time ", and the curves of survival rate, mortality rate and killing power were drew. the results showed both of the survival curves of population appeared to be a type of deevey - iii and the high mortality of seeding is one of the important reasons which caused taxus chinensis var. mairei to be endangered, which badly limited the enlargement of form. taxus chinensis var. mcarei population

    由於南方紅豆杉無解析木，因而以「空間推時間」 、 「橫向導縱向」方法，將林林依胸徑大小分級，以立木級結構代表年齡結構，採用分段勻滑技術，對兩個不同生境的南方紅豆杉種群編制特定時間生命表，繪制存活曲線，結果表明不同生境的南方紅豆杉種群的存活曲線均趨于deevey -型，兩地差異較小，幼苗死亡率極高，不同生境的幼苗死亡率均達到96以上。
  8. Simple genetic algorithm gets local minimization too easily and converges slowly. to solve these problems, adaptive crossover rate that has reverse hyperbolic rel ation with the numbers of iteration is designed, and adaptive mutation rate that has reverse proportion to the distances of parents and reverse exponential relat ion to the numbers of iteration is put forward. the practical simulation results show that the adaptive ga has greater convergence speed and larger probability o f getting the best solution

    簡單遺傳演算法存在著收斂速度慢、易陷入局部極小等缺陷.針對這些缺陷，本文設計出隨相對遺傳代數呈雙曲線下降的自適應交換率，並提出與父串間的相對歐氏距離成反比、隨相對遺傳代數指數下降的自適應變異率.實例驗證表明，具有自適應交換率和變異率的遺傳演算法在收斂速度和獲得全局最優解的概率兩個方面都有很大的提高
  9. A new type of very low specific speed pump ? roto - jet pump is presented for low flowrate and high head transportation, which is introduced at the end of the thesis

    論文最後主要研究了一種隸屬于極低比轉數離心泵范疇的新型泵? ?旋噴泵，它是一種新型的石油化工用泵，具有流量小、揚程高、流量揚程曲線平緩的特點。
  10. In present thesis, the actual design theories and methods for super - low specific - speed pump are introduced first, including " the increased flowrate design method ", " the method of anti - hump on h ~ q characteristic curve ", " non - overload design method ", " the design method of complex impeller " and so on. according to these methods, 5 types of impeller have been designed

    論文首先對極低比轉數離心泵的現行設計理論和設計方法作了介紹，包括加大流量設計法、減小或消除揚程曲線駝峰的途徑、無過載設計及復合葉輪設計法等，並按照這些方法設計了五種葉輪。
  11. Secondly, to counter contour curve for large sole of rubber overshoes, the way of linear circle arc spline of two dimensions curve fitting has been raised in this paper and autocad has meanwhile been applied in cad / cam integeration system of rubber overshoes mould, and also a whole set of software and hardware technique developed, and the selecting way for optimizing tool path worked out. this way may make nc machining free running minimun

    其次，針對膠鞋大底的輪廓曲線，對圓弧樣條進行了深入研究，提出了二維曲線擬合的線性化圓弧樣條方法；同時將autocad應用於膠鞋模具cad / cam一體化系統中，成功地開發了一整套相應的軟硬體應用技術，提出了刀具軌跡優化的動態選擇法，以便使nc加工的空行程相對極小化。
  12. The power angle characteristics are acquired and compared with the unsaturated curves. it is concluded that the stability limit of the power angle is less than 90 degree. reactive power regulating curves are calculated and compared with those curves when saturation effect is not considered, the result is that u type curves are deviated to the right

    通過對同步發電機各種運行曲線的計算，在已有文獻的基礎上更進一步分析了鐵磁材料飽和以及磁場畸變對同步發電機運行特性和參數的影響；求出了空載特性曲線和零功率負載特性曲線，在不同的電樞電流下計算得到的波梯電抗不同；求出了功角特性曲線，與不計飽和時的功角特性曲線相比較，功角穩定極限小於90 ；求出無功調節曲線，與不計飽和時相比較， u型曲線向右偏移。
  13. Aimed at some problems such as short spraying distance, electricity - leaking and reverse ionization among electrostatic nozzles existing in the country, a induction charging and pneumatic energy electrostatic nozzle was designed. the basic designing theories, structure and working process of this nozzles were theoretically specified in the paper. and then the atomization quality and charge performances of this nozzle and its affecting factors were studied by carrying out performance experiment and statistic analysis. result of the studies indicate : ( 1 ) some progress were made in solving the problems list above ; ( 2 ) from this nozzle, droplet were minute and uniform, and higher charge - mass ratio can be obtained under lower electrostatic voltage, thus the atomization quality and charge performance of this nozzle were both better ; ( 3 ) within the experiment extend, air pressure at 0. 2mpa, electrostatic voltage at 2400v were the most suitable parameters for the nozzle ; ( 4 ) the regression equations for describing droplet size, intensity of spray current and charge - mass ratio of this nozzle obtained from the experiment data had higher forecast precision ; ( 5 ) cross - effect of all factors were not significant, the atomization quality and charge performance were relative dependency affected by the factors

    諸試驗因素中，充電電壓和噴孔直徑對霧滴荷質比均有極顯著的影響；氣體壓力和液體流量對霧滴荷質比的影響均不顯著；影響霧滴荷質比的主要因素依次為充電電壓和噴孔直徑; （ 8 ）在300v 、 600v 、 1200y 、 1800y 、 2400v 、 3000v六種充電電壓t ，霧滴荷質比先隨充電電壓的增加而增大， 2400v后荷質比減小，推測:對于所研製的噴頭可能存在一個最佳充電電壓; （ 9 ）由充電電壓和噴孔直徑的不同搭配所得霧滴荷質比不同這一結果，可看出，較大充電電壓需配備較大噴孔直徑以增強霧滴荷電效果; （ 10 ） td3 . 6和td3 . 4兩噴頭的霧滴荷質比曲線趨于重合，說明噴孔直徑大於滬3
  14. Based on the method of limitation analysis of soil plasticity, researching from the soil arching mechanism of soil - nailing retaining, the upper limit of the critical height of soil - nailing slopes and the minimum horizontal length from coping of the potential slide surface to the edge of deep excavation are obtained through the analysis to weight of soil and vertical loading and the mechanism of soil and soli - nailing acting reciprocally

    摘要基於土的塑性極限分析方法，以均質土坡為例，從土釘支護結構的準粘聚力理論出發，綜合考慮土體自重、坡頂的條形荷載，以及土釘與土體的相互作用的機理，推導出了土釘支護的臨界高度的上限值和潛在螺旋曲線滑動面在坡頂方向距基坑邊沿的最小水平距離解析表達式，可供基抗支護設計參考。
  15. But the comprehensive properties were improved remarkably. with the addition of carbon nanotubes, the polarization of charging process decreased, the plateau of discharge became flatter and the migration of potential of peaks value of cyclic voltemmograms reduced. for the other hand, the exchange current increased, ohm resistance and electrochemical reaction resistance of the electrodes decreased, the diffusion resistance of hydrogen and the resistance of adsorption decreased, too

    摻入碳納米管對儲氫合金電極的容量影響較小，但其電化學性能卻有較大的改善，主要體現在：充電的極化減小，放電平臺更加平穩、循環伏安曲線的峰值電位隨掃描速度增大的遷移量減小，交換電流密度增大，電極的歐姆電阻、電化學反應、擴散電阻和吸附電阻均減小。
  16. In addition, based on the analysis of the change of inter - electrode capacitances as changing working condition, a sub - circuit model for a power mosfet is developed and all model parameters can be easily extracted by data sheet. conducted emi includes two modes : differential - mode ( dm ) and common - mode ( cm )

    功率mosfet的開關動態特性主要受其極間非線性電容和外部工作條件的影響，在分析了功率mosfet在開關過程中各極間電容變化的基礎上，本文以小信號ldmos為內核，提出了子電路形式的功率mosfet高頻模型，所有的模型參數也都可以利用產品數據曲線獲得。
  17. And then based on the generalized function and distribution theory, it presents two corollaries that are relate to singularity detection and the wavelet transform modulus maxima line ( wtmml " s )

    結合廣義函數與分佈理論，提出了兩個用於描述瞬態信號波至點檢測與小波變換模極大值曲線（ wtmml ' s ）之間關系的新推論。
  18. The analysis in this paper have been verified by experiment firstly, the structure and mechanical characteristics of sliding - plug door are described in this paper. secondly, on the base of the study of the work condition and limited load, the dynamic load - time curve is created. and then the finite element model of sliding - plug door is built by using material equivalent

    本文首先總結和探討了塞拉門的結構特點和力學特性；然後探討了塞拉門的極限工況，即列車交會壓力波的作用形式，建立了簡化的作用於塞拉門上的動力學載荷曲線；其次研究了復雜形狀復合材料層合板結構的建模方法，採用物理等效方式減小了計算規模，建立了復合材料門板的有限元模型，並對各種設定的載荷形式進行了數值模擬。
  19. The effects are on the probabilistic assessment of both scattering regularity and sampling size of the test s - n data. p - s - n curves are characterized by the scale and location parameters related s - n relations for the maximum value model. the materials constants of in the scale relations are given by the average s - n relations and the locations

    曲線用極大值分佈的位置與尺度參量s - n關系曲線來表徵，尺度參量s - n關系曲線可表示成均值與位置s - n曲線的函數；均值曲線的材料常數應用最小二乘法求出，位置曲線參數通過極大值分佈的似然函數解出。
  20. The knots for constructing the quadric curve are determined by minimizing the internal strain energy, which can be regarded as a function of the angle. the function of the angle is expanded as a taylor series with two terms, then the two knot intervals between the three consecutive points are defined by linear expression

    對每一個數據點，用相鄰的三個數據點構造一條二次曲線，通過極小化二次曲線的應變能來定義三個數據點的節點，這些節點可被看作是三個數據點相鄰兩條弦間夾角的函數。
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