退化曲線 的英文怎麼說

中文拼音 [tuìhuàqūxiàn]
退化曲線 英文
decay curve
  • 退 : 動詞1 （向後移動） retreat; draw back; move back 2 （使向後移動） cause to move back; remove; wit...
  • 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...
  • 退化 : become vestigial; degenerate; deteriorate; retrograde; devolution; retrogradation; retrogression;...
  • 曲線 : [數學] curve; bight; bought; profile; net曲線板 french curve; irregular curve; curve board; splin...
  1. The circular points are really a degenerate conic.

    虛圓點實際上是一退化的二次曲線。
  2. In this thesis, four types of steel beam - rectangular cfst column connections, including normal welded flange plate ( wfp ) connection, bolted flange plate ( bfp ) connection, stiffened end plate ( sep ) connection and double split - tee plate ( dst ) connection, were designed based on the configuration of steel frame connection. total 8 models, 2 models of each kind of connections were tested under low - reversed cyclic loading at the end of cfst columns. the relationships between force and displacement at the end of columns, the relationships between the moment and rotation of the joints, degradations of strength and stiffness, ductility, failure mechanism and failure characteristics of these four connections under different axial - compression ratios were presented

    本文借鑒鋼框架節點構造，設計了四種類型矩形鋼管混凝土柱與鋼梁連接節點，包括常規栓焊（ wfp ）節點、翼緣全螺栓連接（ bfp ）節點、雙t板連接（ dst ）節點以及加勁端板連接（ sep ）節點，進行了四類節點8個模型試件在柱端低周反復荷載作用下的抗震性能試驗研究，比較了不同軸壓比下節點的滯回性能、強度與剛度退化、延性、破壞機理與破壞特徵，主要結論有： 1 、節點的位移滯回曲線與轉角滯回曲線為塊型分佈，沒有或略有捏攏現象，耗能能力強； 2 、軸壓比對節點滯回曲線有顯著影響，全部節點都有顯著的剛度退化； 3 、位移與轉角骨架曲線在峰值荷載後有較長的水平或下降段，具有良好的延性性能； 4 、從整體抗震性能上看，翼緣全螺栓連接節點、雙t板連接與加勁端板連接節點都優于常規栓焊節點，可在實際工程中加以推廣。
  3. 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。
  4. The macula gradually degenerates with age. some elders would experience distorted vision, e. g. straight lines become crooked or are seen to be magnified or diminished, or sometimes dim spots appear in the center of the visual field

    黃斑點隨著年增長會逐漸出現萎縮及退化的現象，患者所看的東西會出現變形，如直線變曲線，有時放大或縮小，或間中有暗點，以致視力模糊。
  5. Another algorithm is based on pixels : sample many points along the curve, round them to the nearest integer and set each pixel the computed point falls in. although this algorithm uses integer arithmetic, it provides the smooth curve possible at the expense of computation time as many points have to be computed to ensure that no gaps are created along the curve. furthermore these two algorithms we mentioned above is appropriate for low degree parametric curves, for high degree parametric curves, we usually approach them by using low degree rational parametric curves, the generating curve ' s fairness property is not very good

    我們知道當節點矢量的兩端節點均為k重節點且無內節點時， b樣條基函數退化為bemstein多項式，因此該生成演算法還可推廣到b能ier曲線中，具有廣泛的應用價值、同樣地，在cad和cagd中，有理b樣條曲線，特別是非均勻有理b樣條曲線（ nurbs ）已經成為曲線曲面設計中最廣為流行的技術，然而對這些曲線目前也尚無很好的曲線生成演算法，因此有理b樣條曲線的生成演算法無疑有著更重要的意義
  6. The seismic behavior of longitudinal middling - high r. c shear wall with frame column is discussed through model experimentations and finite element methods in this paper, after taking frame - shear wall structure of a main factory building of the large capacity power plant as experimentative prototype. the major work as follow : in order to appliance pseudo static test, the longitudinal middling - high r. c shear wall with frame column in the large capacity power plant ' s main factory building has been simulated to a model structure with 1 / 15 reduced - scale. the contents of study are process of cracking, course of damage, skeleton curve, rigidity degradation, ductility characteristic etc. that the seismic behavior of this kind of middling - high r. c shear wall is excellent has been proved by chubby hysteretic curve and fine capacity of energy dissipation

    本文以某大型火電廠主廠房縱向框架一剪力墻結構為原型，通過模型試驗和有限元分析，研究了縱向帶邊框柱中高剪力墻結構的抗震性能問題，主要內容有：選用1 15縮尺比把某大型火電廠主廠房縱向帶邊框柱剪力墻原型結構模擬為一個模型結構，並進行了偽靜力試驗，研究了這類縱向帶邊框柱中高剪力墻結構的開裂與破壞過程、骨架曲線、剛度退化、延性性能等問題，試驗滯回曲線飽滿，消能能力強，說明此類中高剪力墻的抗震性能較好。
  7. The alloys, which were cold - worked followed by recrystallization annealing, display cyclic softening in the range of low strain because the cyclic stress - strain curve lies below the monotonic stress - strain curve, and show cyclic hardening in the range of high strain because the cyclic stress - strain curve lies above the monotonic stress - strain curve

    在低應變范圍，冷加工后經再結晶退火處理的錯合金的循環應力一應變曲線位於單調拉伸曲線的下方，表現為循環軟化;在高應變范圍則位於單調拉伸曲線的上方，表現為循環硬化。
  8. Secondly, by low - cycle and reverse horizontal loading test, their properties including strength property, deformation property and energy property are studied. we study the loading characteristic values ; the property of hysteretic curve and skeleton - frame curves ; the ductility property and stiffness degradation. at last we analyze the destroy principle and affection reasons of hollow shear wall of r. c with vertical seams in different height and loading measures, we also give the bearing capability calculation formulas and design advises for new type hollow shear wall of r. c

    首先運用ansys有限元程序分析彈性階段水平外荷載施加后，帶豎縫鋼筋砼空心剪力墻板內應力分佈及變形情況，再在試驗數據的基礎上，研究低周反復水平加載條件下，各試件的強度、變形、能量特性；各試件的荷載特徵值；各試件的滯回曲線、骨架曲線；延性及剛度退化等參數；最後，分析了不同剪跨比和加載條件的帶豎縫鋼筋砼空心剪力墻板的破壞機理和承載力影響因素，並給出不同剪跨比和加載條件的帶豎縫鋼筋砼空心剪力墻板承載力計算公式及設計建議。
  9. A new nonlinear finite element model which applies subsystem connect beams element and space degenerate shell element to analyze eccentric braced structural energy - dissipation and links collapse mechanism is presented in this paper

    本文提出了應用子結構法聯合梁單元與空間退化曲殼單元分析偏心支撐鋼框架耗能性能及耗能梁段破壞機理的非線性有限元分析模型。
  10. From the restoring force model curves some parameters may be obtained, such as skeleton curves, which are similar to the curves under static load, initial rigidities of the joint, and rigidity degradation etc

    從恢復力特性曲線得到了和一次加載相接近的骨架曲線，節點的初始剛度和剛度退化等參數。
  11. Speaking in detail, for every specimen, we study the for of the cracking load, yield load and failure load ; the ductility property ; the property of hystersis curvs and keleton - frame curves ; the degree of initial stiffess and stiffness degadation. secondly, the two different suo nlgn use ltslaences ， wmcn are ootll shear wsll sttllctlllt ， are tab6n as instanop the shear ’ wsi is oin 卜 hot8qopo inww 田 l ！ s ot 以 j 口 willo 地 勸 憂 地 epo o odod sqo8qopt solidndls ofr c l w means or0 卜 0nm elemem ana 吹 lsptwtodd ’ mlmwe m 加 柏 mm are d an 邑 以 胡 a ann compcomparen in severm es 叮 wsllcll as scu 一 陽 i 朗 l p 一 ndnd mdede so ess d laterm seimic e anu so on ’ inatty ， tiep 訓 頒 oility of hollow shear wal of rc in d suo ra use reslaences s ant l

    首先研究在低周反復水平加載試驗下試驗對象的強度、變形和能量的特性：開裂荷載、屈服荷載、破壞荷載；各試件的滯回曲線和骨架曲線；延性情況；初始剛度和剛度退化等參數：進而用satwe有限元程序分析對比了某一小高層剪力墻結構在採用空心剪力墻板和採用普通實心剪力墻作為墻體的結構受力異同點，在質量、主振型、剛度、水平地震效應等方面做了對比。
  12. Based on the experiments under low reversed cyclic loading, failure pattern, hysteresis curves, skeleton curves, restoring force model, displacement restoring capacity, ductility and rigidity degeneration of prestressed concrete beams with high ppr are studied systematically

    摘要基於低周反復荷載試驗，對高預應力度混凝土梁的受力過程、破壞形態、滯回曲線、骨架曲線、恢復力模型、變形恢復能力、延性、剛度退化等抗震性能進行了較深入的研究分析。
  13. 3. the performance of staggered joints is similar to ordinary joints ', not only about the plump of hysteresis curves, energy dissipation, but also the time, the rapidity of shear resistance decrease and the degree of joints stiffness degradation. only the displacement ductility coefficient in staggered joints is little smaller than in ordinary joints

    錯層節點的抗震性能比普通節點的抗震性能基本差不多，不管是從梁端滯回曲線的飽滿程度、耗能系數，還是從節點承載力降低的早晚、快慢、節點剛度退化的程度上來說，都是這樣，唯有錯層節點的位移延性系數，要比普通節點的稍差一些。
  14. At the same time, hierarchy intersection is applied for unified classification, and for tracing the intersection curve to overcome degenerate cases that occur frequently in practice

    同時採用層次求交和交線跟蹤的方法，保證曲面片分割和區域分類的一致性，從而克服了實踐中常見的退化情況。
  15. The objective of the stability studies is not only to characterize the degradation curve but also to estimate the shelf - life of the drug products

    藥品安定性試驗的主要目的在於刻劃藥品之退化曲線，且估計其有效期限。
  16. In the process of finite element analyzing, the beam, column and b race that not enter the plastic parts adopt bearn element that considered geometry nonlinear. the links entering plastic adopt space degenerate shell element that considered the nonlinear large - deformation, together with mixed hardening rule, which linearly combines isotropic and kinematic hardening

    在有限元分析過程中，對于未進入塑性部分的梁、柱及支撐採用梁單元，梁單元考慮了幾何非線性，對于進入塑性部分的耗能梁段採用空間退化曲殼單元，曲殼單元考慮了幾何和材料的雙重非線性，材料的強化採用了混合強化法則，非線性方程通過newton - raphson迭代結合增量法求解。
  17. The structure and the thickness and optical constants of each layer determine the reflectance of the thin film system. we made simulation of the determination of layer thickness of thin film system from is spectral reflectivity curve. the selected algorithm includes simulated annealing algorithm, genetic algorithm, conjugate gradient algorithm and dfp algorithm

    我們對不同結構的膜系進行了理論模擬，並首次引入全局優化演算法，如遺傳演算法、模擬退火法等，和超線性演算法，如共軛梯度法、變尺度法等，對膜系的光譜特性曲線進行反演，求解出其結構參數。
  18. The technical system evolves over time, which process parallels the micro - evolution of biological systems and illustrates the life cycle stages of child, growth, maturity and decline. what evolves is the characteristic index of the technical systems whose improvement is shown by a s - curve on the time - scale

    技術系統處于不斷的進化過程中，其進化過程類似於生物的成長過程，要經歷嬰兒期、成長期、成熟期和退出期四個階段，在時域上表現為特性參數沿s -曲線的增長。
  19. Especially, paper research that the k - order rational b - spline function change to polynomial b - spline when h limit to 0, +. last the spline function can be used to express the hyperbolic curves. then, when k = 3, 4, paper research the infection of curve because qi is changed

    當形狀參數h 0 ~ + ， +時， k階指定極點有理b樣條退化成多項式b樣條，最後還給出了雙曲線的精確表示
  20. 3. the action of main affected factors, such as axial force, shear - span ratio, transverse reinforcement amount and so on, are described in detail to study the shear behavior and mechanism of columns under cyclic load. 4. the shear contribution of concrete and transverse reinforcement as to the increasing of columns * displacement ductility level is also investigated

    詳細地分析了位移延性、循環次數以及剪跨比、軸壓比及配箍特徵值等因素對框架柱構件骨架曲線、荷載退化曲線、剛度退化曲線及構件滯回性能等的影響，得出了反復荷載下框架柱塑性鉸區域剪切受力性能的眾多試驗研究結果。
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