近似結構 的英文怎麼說

中文拼音 [jìnsìjiēgòu]
近似結構 英文
approximate construction
  • 近 : Ⅰ形容詞1 （空間或時間距離短） near; close 2 （接近） approaching; approximately; close to 3 （親...
  • 結 : 結動詞（長出果實或種子） bear （fruit）; form （seed）
  • 構 : Ⅰ動詞1 （構造; 組合） construct; form; compose 2 （結成） fabricate; make up 3 （建造; 架屋） bui...
  • 近似 : approximate; similar; approach; approximation; roughness; propinquity
  • 結構 : 1 （各組成部分的搭配形式） structure; composition; construction; formation; constitution; fabric;...
  1. Abstract : considering the second nearest - neighbor interaction and cubic, quartic anharmonic interactions simultaneously, we employ the multiple scales method combined with a quasidiscreteness approximation to calculate the lattice vibration. it is shown that the kind of nonlinear chain exhibits envelope soliton, envelope kink and envelope antikink soliton. these results can also be used to explain the experimental phenomena that the kink amplitude of the self - localized structure is determined only by the intrinsic properties of its lattices

    文摘:同時考慮次近鄰諧振相互作用和三次方、四次方非諧相互作用，利用多重尺度結合準離散近似方法去計算晶格振動行為，發現一維非線性點陣中存在包絡孤子及正扭結型包絡孤子、反扭結型包絡孤子，解釋了自局域結構的幅度只取決于點陣中的固有參數的實驗現象
  2. The feathers attached to the arms and the tail evidently possess the structures of " modern feathers ", which consisting of the central shafts ( rachis ) and parallel barbs. dromaeosaurids are unusual group of maniraptoran theropods. they share many similar or the same features with archaeopteryx or other primitive birds, such as : u - shaped furcula, uncinate process, laterally facing glenoid of shoulder girdle, comparatively long forelimb, large semilunate carple, retroverted pubis, ascending process of astragalus, and " modern feathers " with rachis and barbs etc. these facts indicate not only that dromaeosaurids had developed many bird - like characters in course of the advanced maniraptorans toward birds, but also that there seemed to be the co - evolutionary trend between the feathers and the skeletal bones

    奔龍類是一類較為特殊的手盜龍類（ maniraptora ） ，它具有許多與始祖鳥archaeopteryx甚至其它早期鳥類相似或接近的特徵，主要表現在：叉骨u形與始祖鳥和孔子鳥類的相同，背肋鉤狀突在孔子鳥類和個別反鳥類中也存在，肩臼窩絕大部分指向側方類似於始祖鳥，肩胛骨與烏喙骨間的夾角非常接近90也和始祖鳥的相似，前肢從比例上講顯得較長，大的半月形腕骨使肘部能向側方折過來，恥骨伸向後下方，距骨上升突與原始鳥類中的為同源結構，羽毛已有顯著的分化且具備了現代羽毛的基本結構等等。
  3. During the previous analysis of asphalt pavement structure with cracks, the stress intensity factors were usually calculated approximatively using plane strain model for some limitation. however, the assumptive load of this model is not coincident to the practical load

    在以往分析含裂縫的瀝青路面結構時，由於條件的限制，通常是假設瀝青路面結構近似為一平面應變模型，但是這種模型所假設的荷載與實際作用的荷載有較大的區別。
  4. Results contrast with the unimproved or some previous models, the features of tumor microvascular networks generated from our model by simulating the angiogenesis in caecum tumor, such as vascular tortuosity, branching and anastomosis, are closer to the physiological facts and more resemble the experimental observations

    結果對盲腸腫瘤微血管網進行數值模擬，與改進前的模型和其他模型比較，本模型生成的腫瘤微血管網結構特徵，如血管的走向、扭曲、分叉與融合等，更接近生理實際，與實驗觀測圖像的相似度更高。
  5. The main contents are as follows. ( 1 ) filter cloth and the surrounding soil mass are taken as an approximate isotropy in horizontal section, the relationship of stress and strain is studied, the anisotropy is fully considered, the constitutive model of filter cloth reinforcement fly - ash compound is obtained, it is tested with numerous indoor experiments. ( 2 ) the permeable coefficient is introduced into the constitutive relationship of soil mass with relevant seepage theory ( kozeny - carman experience formula ). the test of filter cloth depositing hi the condition of long term seepage flow is done hi the dissertation, the varying regular of permeable coefficient without pressure is presented

    本文首先對國內外的研究現狀作了回顧和總結，然後主要針對土工織物加筋粉煤灰復合體的本構關系和計算理論進行研究，主要內容有： （ 1 ）將土工織物和周圍土體視為一種近似的彈性非線性橫觀各向同性體，研究它的應力應變關系，充分考慮它的各向異性，得到土工織物加筋粉煤灰復合體的本構模型，然後通過大量室內試驗進行分析驗證； （ 2 ）引入有關滲流理論，即柯茲尼-卡爾曼（ kozeny - carman ）經驗公式，將滲透系數引進到土體本構關系中。
  6. But the recent discovery of detailed similarities in the skeletal structure of the flippers in all three groups undermines the attempt to explain away superficial resemblance as due to convergent evolution ? the independent development of similarities between unrelated groups in response to similar environmental pressures

    但是，最近的發現，這三種動物的鰭足的骨骼結構都有詳細的類似之處，這個發現削弱了下文的企圖，即把表面上的類似解釋為趨同進化的結果? ?是指類似結構的獨立發展，在不相關的種群之間，對于類似的環境壓力的反應。
  7. Report ucb csd - 01 - 1141, university of california, berkeley, usa, 2001. 8 cuenca - acuna f m, nguyen t d. text - based content search and retrieval in ad hoc p2p communities

    本文針對上述問題，提出對等數據系統中的摘要索引結構及建立在此基礎上的基於內容的近似查詢處理方法。
  8. ( 4 ) on the efficient method for the dynamical core of the new generation multi - scale forecasting model i ) we present a new multi - level sparse approximate inverse preconditnioner for the complicated 3 - d helmholtz equations in the new generation weather forecasting model. as a result, the new sparse approximate inverse preconditioned gcr and gmres algorithms are given and successfully applied in the dynamical core. numerical tests show that the new algorithms perform very efficiently, and can greatly improve the efficiency of numerical model

    對此，本文提出了一種基於逐層門限技術的近似逆矩陣稀疏模式預選方法，並構造了相應的稀疏近似逆預條件子，結合gcr演算法和g州[ r衛s演算法，首次將逐層門限稀疏近似逆預條件子應用於新一代多尺度預報模式動力內核的實際計算，數值實驗表明這里給出的方法可以大大提高數值模式的計算效率。
  9. Iterative approximation algorithm of hessian matrix in structural optimization

    結構優化中的海森矩陣的近似迭代方法
  10. The papillary architecture in this tumor is more delicate and lacks foamy histiocytes. when closely packed, it can create near - solid appearance

    本例腫瘤乳頭狀結構更加精緻，缺乏泡沫樣巨噬細胞，呈現近似於實性表現。
  11. The optimum designs of a good and applied outer pressure tank structure of submarine ? quasi - homocentric structure, based on approximate analytical methods and finite element stress analysis method are made

    提出了準同心圓式潛艇外部耐壓液艙結構是一種優良實用的結構型式，給出了這種結構基於近似解析法和基於有限元應力分析的結構優化設計方法。
  12. Soil reinforcement. backfilled structures reinforced with quasi - inextensible and flexible reinforcing strips or sheets. static pull - out test with constant rate of displacement

    土壤增強.用近似不伸長的軟帶或板加強的回填結構.恆速位移靜推試驗
  13. Soil reinforcement. backfilled structures reinforced with quasi - inextensible and flexible reinforcing strips or sheets. part 1 : reinforcement with metallics strips in line. design

    土壤加固.用近似不能伸展的和軟增強帶和增強板增強的回填結構.第1部分:線性金屬帶材增強.設計
  14. Soil reinforcement. backfilled structures reinforced with quasi - inextensible and flexible reinforcing strips or sheets. part 2 : reinforcement with metallic strips in lattice work. design

    土壤加固.用近似不能伸展的和軟增強帶和增強板增強的回填結構.第2部分:格梁結構金屬帶材增強.設計
  15. Isolated points and algebraic structure of rough equality classes in approximate space

    近似空間中的孤點與粗相等類的代數結構
  16. Abstract : the effect of correction of self - consistent potential on electronic structure in simple cubic nanocrystal particles is calculated by means of the green ' s function method in the tight - binding approximation, taking only the nearest neighbor matrix elements into account. the numerical results show that the electronic energy spectrum is shifted, the chemical potential is not equal to the atomic energy level, the electronic density at each lattice point is changed, and the variation of electronic density at surface lattice point is the largest

    文摘:在緊束縛近似下，只計及最近鄰的矩陣元，採用格林函數計算了自洽勢修正對簡立方納米晶體顆粒的電子結構的影響，發現電子能譜發生了移動，化學勢不等於格點原子能級，各格點的電子密度也發生了變化，其中以表面格點的電子密度變化最大。
  17. Furthermore, due to the symmetry restriction of traditional radial basis function networks ( rbfn ) with gaussian function, the asymmetric gaussian basis function ( agbf ) is proposed to construct the full adaptive agbfn. because the asymmetry gaussian function ' s variability and malleability are higher than the traditional one, the asymmetry gaussian basis function can provide the agbfn which own a higher flexibility and can approach the true result more easily

    針對這一問題，文中提出了一種全自適應的不對稱高斯基函數網路（ agbfn ）結構，網路的基函數採用具有不對稱寬度的偽高斯函數，和常規的高斯函數相比，具有更大的可變性和延展性，從而使得隱層神經元在函數近似上具有更高的適應性，提高了神經網路的學習能力。
  18. An example of durability evaluation of concrete structure is given as well. lastly, the minimum cover depth of concrete that concrete structure exposed to the splash zone and near marine environments needed is discussed, some proposition about design and construction of reinforced concrete structure exposed to chloride environments are presented

    對氯腐蝕環境下混凝土結構最小保護層厚度進行了研究，提出了在近海區和浪濺區等相似環境下混凝土結構最小保護層厚度的建議值；對氯腐蝕環境下混凝土結構耐久性設計提出了相應的建議。
  19. Abstract : the theory of variable structure control of sing ular nonlinear control systems was considered based on the singular nonlinear systems itself by employing the method of geography, and gives the sufficient condition of existence of variable structure control and approximation theory of real sliding mode. it is shown that sliding condition only guarantee the slow - varying state of real sliding mode approach that of ideal sliding mode but not guarantee the fast - varying state of real sliding mode approach that of ideal sliding mode. the method applied for studying normal nonlinear system can not be used directely to singular nonlinear system

    文摘:利用幾何方法，從廣義非線性系統本身出發，研究了廣義非線性控制系統的變結構控制理論，給出了系統存在變結構控制的充分條件及實際滑動模的近似定理.從所得結論可知，滑動條件僅能保證實際滑動模的慢變狀態趨近於理想滑動模的慢變狀態，而不能保證實際滑動模的快變狀態趨近於理想滑動模的快變狀態，研究正常非線性系統的方法已不能簡單地被利用到廣義非線性系統
  20. To the drawback that an immune algorithms solve the multi - model optimizing problem, the immune algorithms is improved by using a niche technology of similar structure and eliminating near best result operator

    摘要針對一種免疫演算法在求解多模態函數優化問題的不足，利用基於相似結構的小生境技術和近優淘汰運算元對免疫演算法加以改進。
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