differential ratio 中文意思是什麼

differential ratio 解釋
差分率
  • differential : adj 1 差別的,區別的;特定的。2 【數學】微分的。3 【物、機】差動的,差速的,差示的。n 1 (鐵路不...
  • ratio : n. (pl. ratios)1. 比,比率,比值;比例;系數。2. 【經濟學】復本位制中金銀的法定比價。vt. 1. 用比例方式表達;求出…的比值;使…成比例。2. 將(相片)按比例放大或縮小。
  1. In this paper, the relation between differential driven ratio accuracy and the common normal length error of cylindrical bevel wheel has been found by experimental method, which provides a efficient way for cylindrical bevel wheel manufacturer to control the common normal length error of the wheel

    摘要通過實驗研究,尋找出差動傳動比的精度與斜齒圓柱齒輪的公法線長度誤差的關系,從而為斜齒圓柱齒輪的加工提供一個可以控制斜齒圓柱齒輪公發線長度誤差的有效方法。
  2. Output can be obtain, next we use our designed the wavelet soft threshold to select result of the wavelet transform, finally, we give the selected result reversal wavelet transform. it is obvious : the wavelet soft threshold is important to improve the quality of the gray image processing. i give the donoho wavelet soft threshold a modified value method, which has a relation with ratio of signal - noise. i made full use of discrete hop field single feedback neural network, and nonlinear steady of automatic system at last, i obtained a steady limited ring, give the energy function an order differential a optimal

    我的思路是:改造現有圖形結構,先建立能反映信噪比大小且含待定參數k的表達式,然後通過離散型h0pfi舊單層反饋神經網路,再結合前邊的混合濾波器構成一個非線性控制系統,寫出對應的網路函數,利用相平面法和李雅普諾大穩定性的判據,得到一個穩定的極限環,從而確定出參數卜的范圍,進而再對原來的小波軟閾值進行修正,用修正後的值作為小波閾值。
  3. It is nothing else than the division, the summing and the ratio of the intuitionistic continuun that become the basic manner in which newton and leibnitz established their universal differential coefficient and integral arithmetic

    正是對這個直觀連續統的分割、求和、求比成為牛頓和萊布尼茨建立他們的普遍的微分和積分演算法的基本方式。
  4. We made use of wheatstone bridge to control ratio of heating power between the samples, thus, it enable to control and measure the differential heating power accurately. consequently, it improves sensitivity of the system. the resolution of the measurement can reach from 1 : 1000 to 1 : 10000 or better in comparison with the traditional differential technique

    我們測量了聚苯胺及其摻雜鹽酸后在1 . 8k至45k的熱容,利用聲子分形子模型來處理非晶態對比熱的貢獻,對獲得的數據進行處理,發現eb和es的比熱數據均不符合德拜理論,超出德拜模型的比熱來源於非晶態的貢獻。
  5. Critical pressure differential ratio

    臨界壓差比
  6. Relationship between the gyro ’ s bandwidth and sensitivity and the resonant frequency differential ratio is derived through frequency analysis. the bandwidth of the gyro increases as the resonant frequency differential ratio increases ; but the sensitivity decreases as the resonant frequency differential ratio increases

    增大驅動軸和敏感軸之間諧振頻率的頻差,可以增加微陀螺的帶寬,但是降低了微陀螺的靈敏度,這為設計石英音叉結構參數時,確定驅動軸和敏感軸諧振頻率提供了指導依據。
  7. Based on the basic analysis of the structure and power elements of the hybrid vehicle, this thesis presents a powertrain system with a metal pushing belt cvt, aiming to the development status and trend of the hybrid vehicle technology in our country. a rational control strategy and its work mode of this powertrain system are determined, and correlative parameters such as the engine power, the starting torque, and the differential ratio, the rated power and torque of the motor, and the ratio of the torque synthesizer are systematically designed for the changan star 6350b. at the same time, the design of these parameters is considered as the base of the simulation of the motor control system in next step

    在對混合動力汽車的結構型式和動力元件進行基礎性理論分析后,針對我國汽車技術發展現狀和混合動力汽車技術的發展趨勢,設計了一種基於金屬帶式無級自動變速器cvt混合動力汽車動力傳動系統方案,根據該傳動系統方案制定了比較合理的控制策略和工作模式,並針對長安之星6350b設計了發動機功率和起始轉矩、主減速比、電機的額定功率和轉矩、轉矩合成器速比等相關參數,為下一步的電機控制系統模擬實驗打下基礎。
  8. At present, differential protection is often used as the main protection for traction transformers. however, the existing of certain factors, such as magnetizing inrush, over - excitation, ct saturation and mismatching of ct ratio, will result in that it is hard to distinguish state current and fault current, and differential protection misoperation or maloperation, then secure operation of electric railways system will be threatened

    目前,牽引變壓器通常採用差動保護作為主保護,但是在某些因數的影響下差動保護並不能準確的區分牽引變壓器內部故障或非內部故障,如故障電流與變壓器處于勵磁涌流、過勵磁, ct飽和及ct變比不匹配等情況下的狀態電流就很難準確的區分,可能造成保護誤動或拒動,從而危及整個鐵道電氣化系統的安全運行。
  9. The paper points out that the reasons for displacement efficiency improving of pressure coring well are as follows : firstly, extra - high injection multiples ; secondly, extra - low critical drive ratio ; thirdly, high velocity fluid ' s big differential pressure drive during the process of coring

    得出導致礦場密閉取心井驅油效率高的原囚:一是特高的注水倍數,二是特低的臨界驅動比,三是取心過程中高黏度流體的大壓差驅動。
  10. Established the system of coordinates of roll testing, getting the parameters of equation of tooth face by solving the non - linear equations set ; according to the differential geometry and meshing principle, deduce the curvature parameters of tooth face and tooth profile, and get the parameters of instantaneous contact ellipse. emulate the contact trace and contact area of the working tooth face, and drawing the instantaneous drive ratio error curve

    建立了克林貝格擺線齒錐齒輪嚙合分析的對滾模型,通過對非線性方程組的迭代求解,得到齒面方程的各個參數;由微分幾何和切齒嚙合原理推導了齒面上齒廓和齒線方向的曲率參數,得到了瞬時接觸橢圓的參數。根據設計參數和機床調整參數繪制了工作齒面的接觸軌跡和接觸區圖形,並求得了瞬時傳動比的誤差曲線。
  11. The farmers with higher labor intensity, fulfilled ratio of production adjustment, or adjustment differential would adjust at a faster speed

    而稻農生產調整比率之調整速度在1998年之後,明顯加快。
  12. ( 2 ) the change of ratio of spans has a great effect on the whole bridge under dead load and sunshine temperature differential. on the contrary, it has a smaller effect on the bridge under annual temperature change

    ( 2 )跨徑比值變化,對主梁、橋墩在自重荷載與日溫差作用下的受力有較大影響,而對主梁、橋墩在年溫度變化荷載下的受力影響較小。
  13. In order to improve the behavior of transformer protection that is incomplete at present in distinguishing magnetizing inrush current from fault current, the paper puts forward a kind of new principle of transformer differential protection after analyzing the characteristic of magnetizing inrush and active power consume of transformers. this protection uses differential protection based on positive sequence active power as a criterion to discriminate internal faults from magnetizing inrush, and ratio restraint differential current protection as a signal to touch off the protection

    針對當前電力系統中變壓器保護由於勵磁涌流鑒別理論不完善而導致的誤動率相對較高的問題,論文在分析了變壓器勵磁涌流特性和有功損耗的基礎上,提出了用變壓器正序有功功率差動作為區別勵磁涌流和故障電流的判據,並以成熟的比率制動差流保護作為內外部故障判據的變壓器主保護。
  14. According with the characteristics of pore water seepage and soil deformation, the 1 - d rebound anti - consolidation model is set up. then the anti - consolidation differential coefficient equation is deduced and the corresponding a nalytical solution is obtained. in succession using the above theory, the influence to effective stress area ratio of some factors, such as preloading time, surcharge ' s magnitude and the depth of vertical drain

    針對卸載后淺部地基孔隙水滲流和土體變形特性,建立了軟土地基一維回彈吸水固結模型,推導了吸水固結微分方程,並求出了方程的解,同時,給出了回彈變形計算公式。
  15. Therefore if the closed planetary gear train and the differential plahetary gear train set up a multistage mixed gear train, we will obtain a winch on automobile crane which satisfy the request of double speed, great transmission ratio and small volume

    因此將差動和封閉行星輪系組成多級混合輪系,就可得到一種滿足汽車起重機上的卷揚機雙速、大傳動比、小體積要求的傳動機構。
  16. Grain contact models suggest that dry k / ratio remains a constant with varying porosity, differential pressure and mineral properties and vary with roughness of grain contact

    顆粒含量模型說明,乾燥k /比不受孔隙度、差壓和礦物特性的的影響,但是要隨顆粒含量的粗糙度變化。
  17. Firstly, a simple and practical representing method of the tooth edge tangential vector is applied to replace the traditional differential formula, the simple solving technique of edge contact problem makes the geometric edge contact analysis of the complex curve surface realize. secondly, using numerical searching and mathematical programming method solves the contact directions and loaded contact problem. finally, whole numerical simulation method is provided for loaded tooth contact analysis of high contact ratio spiral bevel gears

    首先以一種簡單實用的輪齒邊緣切矢量的數學表示方法取代了經典的微分表達式,大大簡化了幾何邊緣接觸的求解,使復雜曲面的幾何邊緣接觸分析得以實現;其次又採用數值搜索與數學規劃法求解了邊緣接觸的主方向和承載接觸問題,為高重合度弧齒錐齒輪承載嚙合全過程的數值模擬提供了完整的方法。
  18. In chapter 4, the purpose of this chapter is to establish a kind of strong deviation theorems of functional for the sequences of arbitrary continuous random variables, by using the conception of log likelihood ratio, and extend the strong deviation theorems on the differential entropy for dependent arbitrary continuous information sources on the the probability space (, . f, p )

    使得對于在概率空間( , f , p )上的任意連續型信源的微分熵的強偏差定理是本文的推論;第五章,總結本文的主要結論。
  19. With the method of the lie group transformation, the symmetry of the equation governing one dimensional finite strain consolidation is discussed and, from the point of the symmetry, the feasibility to obtain the analytical solution of these nonlinear partial differential equations is discussed. where - after exact or approximate analytical solutions focused on different consolidation problems are obtained, these including : under some assumptions of relations of the void ratio with coefficient of permeability and effective stress, the method of lie group transformation is applied to solve the non - linear partial differential equation of large strain consolidation of homogenous saturated clay soil in semi - infinite domain with the consideration of the material and geometrical nonlinearity during consolidation procession. the implicit exact solution without considering the effect of self - weight of soil is obtained

    運用lie群變換方法討論了一維大應變非線性固結方程的對稱性,以及在該對稱性的意義下求解這類非線性偏微分方程解析解答的可能性,並就大應變非線性固結問題的多種情況求得了其完整的或者近似的解析解答,具體包括:基於有效應力與孔隙比以及滲透系數與孔隙比之間的關系的一些假定,採用李群變換求解考慮材料非線性和幾何非線性的半無限均質土體大變形固結非線性偏微分方程,得到了一個不考慮自重固結的完全解析解。
  20. It is found that cyclic loading at high differential stress level will lead to the decrease of felicity ratio, and the value max can be decreased by some crack systems in specimen. there is still a lot of ae during unloading at high differential stress level, which implies that the deformation is dominated by fracturing at low differential stress level, and the deformation by frictional sliding increases greatly at high differential stress level

    關于應力方式對巖石破裂的影響,發現較高差應力水平下的多次循環加卸載會使felicity比減小;某些構造能使巖石產生felicity效應的應力門檻值_ ( max )降低;由高差應力水平下卸載時仍有大量聲發射產生推測:在低差應力水平下,破裂以裂紋尖端的突然擴展為主;在高差應力水平下,沿已有的裂紋面的滑動破裂大量增加。
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