連續對稱 的英文怎麼說

中文拼音 [liánduìchèn]
連續對稱 英文
continuous symmetry
  • : Ⅰ動詞1 (連接) link; join; connect 2 (連累) involve (in trouble); implicate 3 [方言] (縫) ...
  • : Ⅰ形容詞(連接不斷) continuous; successive Ⅱ動詞1 (接在原有的后頭) continue; extend; join 2 (...
  • : Ⅰ動詞1 (回答) answer; reply 2 (對待; 對付) treat; cope with; counter 3 (朝; 向; 面對) be tr...
  • : 稱動詞(適合; 相當) fit; match; suit
  • 連續 : continuation; succession; series; continuity; continuing; running; continuous; successive; contin...
  1. Asymmetric autocatalysis intrinsically has the following advantages : chiral amplification of production, high reaction efficiency, easy purification of the products, consecutive reaction, which is a new aspect of chiral synthesis

    自催化具有手性自動放大、反應活性較高、產物處理較易、反應體系等特點,是不化學的一個新的領域。
  2. The analysis calculation method for circular plates subjected to distribution load which is continuous and derivable and axial symmetry

    圓板承受光滑軸分佈載荷的解析計算方法
  3. Roll over protective structure ( rops ) is a device which installs on out of construction vehicle. the main functions are : when the vehicle rolling over. rops can prevent the vehicle from rolling over further, and reduce the possibility of rolling vehicle injures operator ; when the vehicle traveling on freezing soil. concrete and rock, it has large resist continuous impact ability ; when the vehicle overturning rops can support the whole vehicle. arrangement of falling object protective structure ( fops ) can block objects ( such as trees, rocks ) so that supply protection for operator. this problem is that research rolling over and falling objects protective structure of bulldozer by learning research condition of rops / fops and relative lay down international standard. on the base of theory analysis. detrudes counting formula of rops / fops deformation through founding mechanics analysis model of rops / fops at the stage of elasticity and plastoelastic. and finds a set of feasible nonlinear finite element analysis counting. lt calculates rops / fops plastoelastic deforma variable of 320hp bulldozer, bulldozer has been carried out by optimizing design method

    其主要功能是:當車輛滾翻時, rops能刺入未凍土壤而阻止車輛的進一步滾翻,降低滾翻的車輛系著安全帶司機軋傷的可能性;保證rops在碰撞和沖擊變形不大的地面(如凍土、混疑土上、巖石)時,能具有相當大的抗沖擊能力;當車輛已經處于顛覆狀態時,已經變形的rops應能支撐住整車。落物保護裝置(簡fops ) ,其構件的布置方式要能遮蔽墜落的物體(如,樹木、巖石等) ,以便司機提供適當的保護。本課題主要通過了解國內外有關rops fops的研究情況和有關國際標準的制定,大型推土機傾翻和落物保護裝置進行研究,在理論分析的基礎上,通過建立rops fops的力學分析模型,推導彈性、彈塑性階段rops fops變形的計算公式,建立一套可行的rops fops的非線性有限元分析計算方法。
  4. Abstract : the conformal flat space - time solutions in electromagnetic and scalar theory are shown, and the indefiniteness of the plane - symmetric solutions and the method for defining a noncontinuous field by the intersection of multi - solutions are demonstrated

    文摘:給出電磁場和標量場在共形平直時空中的解,發現了平面解的不確定性及由多重解的交集來定義一個非場的方法
  5. Moke and fmr studies were performed on single crystalline fe ultathin films epitaxially grown on iii - v semiconductor gaas substrate with thickness 4. 1 - 33 monolayer ( ml ). a theoretical mode for fitting fmr experimental data was established. the results demonstrated the structures and reproduced the evolution of the magnetic properties of ultrathin films with various thickness from the state of superparamagnetic nano - cluster through coexistence of two magnetic phases to continuous film, especially the change of magnetic crystalline anisotropy from unixial to cubic

    1 - 33原子層厚度( monolayer ,簡ml )的fe單晶超薄膜進行了鐵磁共振( fmr )和磁光研究,建立了理論模型鐵磁共振實驗結果進行了模擬,重現了不同厚度的超薄膜,從納米團簇到兩相共存的過度階段直至薄膜結構與磁性的變化,特別是磁各向異性從單軸各向異性向立方各向異性轉變的演化過程。
  6. Modeling the general solid web continuous box girder and opening - in - web ( open web ) continuous box girder by ansys finite element modeling tool, node stress of governing section and corresponding shear lag values are analyzed. the solution is validated by comparing with variational results and modeling test values. based on the model, the section shear lag induced by dead load, prestress tendons and car loads under the most unfavorable condition and lateral symmetry are also approached. the influence of shear lag effect in double - level continuous box girder is considered with opening - in - web and the web location. the analysis indicates that double - level - load arouses less shear lag effect than one - level - load. when self - weight and prestressed tendons act on together, the shear lag effect on box girder take on a evidently change

    基於所建立的有限元模型,本文分別實腹和腹板開孔兩種箱梁在恆載、車載、預應力荷載作用時,各主要截面的剪力滯效應進行分析,通過施加縱向最不利的和橫向的車輛荷載,研究實腹箱梁和空腹箱梁在承受雙層荷載和單層荷載時引起的剪力滯效應,並考慮腹板開孔及開孔位置箱梁剪力滯效應的影響。分析表明,雙層車載于箱梁引起的剪力滯系數比單層車載的影響要小,于箱梁中存在引起的剪力滯后現象有一定的改善作用。
  7. Once landau theory of phase transition was used to deal with ferroelectrics phase transition. it introduces symmetry breaking into phase transition theory and associates it with order parameter to find the necessary condition of occurrence of phase transition. the theory has settled plenty of problems

    于鐵電體,以前採用landau理論處理相變,這一理論引入破缺,並將它與序參量的變化聯系起來,找到發生相變的必要條件,這成功地解決了一些問題。
  8. Interest in mi5 s work has also increased recently because of the popular uk tv drama spooks which purports to be based on the work of the organisation

    最近mi5工作感興趣的人有所增加也是因為電視劇《暗探》在英國電視臺的火爆播出,該電視劇宣是根據情報局的真實工作編寫的。
  9. India dominated the sport for three decades, winning all six olympic gold medals and 30 consecutive games from 1928 to 1956

    從1928年起至1956年,印度隊以絕優勢獲得6屆奧運會曲棍球冠軍,在該項目上霸世界近30年。
  10. It is well known that the wavelet liner approximation ( i. e, truncating the high frequencies ) can be approximate smooth singals very efficiently. however, for example, piecewise continous signals with large jump in signal value or in its derivatives, standard wavelet linear approximation techniques cannot achieve similar results for signals which are not smooth. to overcome these problems within the standard wavelet transform framework, the paper proposed the double adaptive wavelet transforms

    眾所周知,小波的線性近似(只用低頻系數而不採用高頻系數進行重構的方法為線性近似)能非常有效的近似初始的光滑信號。然而于非光滑信號,例如具有跳變點的分段信號,標準小波的線性近似就不能獲得如光滑函數那樣好的結果。
  11. With reference to the cantilever erection of the continuous steel box girder of zhuanxing road overhead bridge crossing shenfengjin expressway in shanghai, this paper mainly describes the application of plc - controlled hydraulic sync jack - up system to the balanced cantilever erection of the box girder, closure construction of the girder at midspan, and the operation, control key points and corresponding technical requirements for application of the system

    摘要結合上海莘奉金高速公路顓興路跨線鋼箱梁懸臂架設施工,重點闡述了plc控制液壓同步頂升系統在鋼箱梁「懸拼,跨中合龍」中的應用及操作控制要點、技術要求。
  12. The main innovation of our method is that we only need construct polygonal mesh possessing simple symmetric properties on both sides of control polygon edges of interpolated curves, and do n ' t need modify the subdivision rules near the interpolation curves during the process of subdivision. thus the subdivision rules are simple. the process is convergent and the limit surface is c everywhere except a finite number of points

    該方法的主要創新思想是,在被插值曲線的控制多邊形兩側構造具有簡單性質的多邊形網格,而在細分過程中,則無須修改被插值曲線附近的細分規則,兇此細分演算法是簡單的,細分過程是收斂的,且最終的插值曲面除有限個點外是c ~ 2的。
  13. Based on the detection principle of pyroelectric sensing elements, this paper presents a symmetrical peak detection method of continuous double plus - minus pulse signals to eliminate external interference in fixed position heat source

    根據熱釋電敏感元件的探測原理,本文提出一種正負脈沖信號和正負脈沖信號進行峰值檢測的方法。
  14. The primary studies in this paper are the following : ( 1 ) we define a generalized alexandroff topology on an l - fuzzy quasi ordered set which is a generalization of the alexandroff topology on an ordinary quasi ordered set, prove that the generalized alexandroff topology on an l - quasi ordered set ( x, e ) can be obtained by the join of a family of the alexandroff topologies on it, a topology on any topological space can be represented as a generalized alexandroff topology on some l - quasi ordered set, and the generalized alexandroff topologies on l - fuzzy quasi ordered sets are generalizations of the generalized alexandroff topologies on generalized ultrametric spaces which are defined by j. j. m. m. rutten etc. ( 2 ) by introducing the concepts of the join of l - fuzzy set on an l - fuzzy partial ordered set with respect to the l - fuzzy partial order and l - fuzzy directed set on an l - fuzzy quasi ordered set ( with respect to the l - fuzzy quasi order ), we define l - fuzzy directed - complete l - fuzzy partial ordered set ( or briefly, l - fuzzy dcpo or l - fuzzy domain ) and l - fuzzy scott continuous mapping, prove that they are respectively generalizations of ordinary dcpo and scott continuous mapping, when l is a completely distributive lattice with order - reversing involution, the category l - fdom of l - fuzzy domains and l - fuzzy scott continuous mappings is isomorphic to a special kind of the category of v - domains and scott continuous mappings, that is, the category l - dcqum of directed - complete l - quasi ultrametric spaces and scott continuous mappings, and when l is a completely distributive lattice in which 1 is a molecule, l - fuzzy domains and l - fuzzy scott continuous mappings are consistent to directed lim inf complete categories and lim inf co ntinuous mappings in [ 59 ]

    本文主要工作是: ( 1 )在l - fuzzy擬序集上定義廣義alexandroff拓撲,證明了它是通常擬序集上alexandroff拓撲的推廣,一個l - fuzzy擬序集( x , e )上的廣義alexandroff拓撲可以由其上一族alexandroff拓撲取並得到,任意一個拓撲空間的拓撲都可以表示為某個l - fuzzy擬序集上的廣義alexandroff拓撲,以及l - fuzzy擬序集上的廣義alexandroff拓撲是j . j . m . m . rutten等定義的廣義超度量空間上廣義alexandroff拓撲的推廣。 ( 2 )通過引入l - fuzzy偏序集上的l - fuzzy集關于l - fuzzy偏序的並以及l - fuzzy擬序集上(關于l - fuzzy擬序)的l - fuzzy定向集等概念,定義了l - fuzzy定向完備的l - fuzzy偏序集(簡l - fuzzydcpo ,又叫l - fuzzydomain )和l - fuzzyscott映射,證明了它們分別是通常的dcpo和scott映射的推廣,當l是帶有逆序應的完全分配格時,以l - fuzzydomain為象, l - fuzzyscott映射為態射的范疇l - fdom同構於一類特殊的v - domain范疇,即以定向完備的l -值擬超度量空間為象, scott映射為態射的范疇l - dcqum ,以及當l是1為分子的完全分配格時, l - fuzzydomain和l - fuzzyscott映射一致於k . wagner在[ 59 ]中定義的定向liminf完備的-范疇和liminf映射。
  15. On the base of the character of hemisphere continuously vibrating, the method of actuation and measuring, the asymmetry compensating process and the measuring limit were studied, the control loop and the parameter design were introduced, which will be prepared for the future circuit design and the automobile security application

    本論文主要是在半球振動特性的基礎上,陀螺儀的驅動及感測方法、非軸的補償方法及感測極限進行研究,並詳細介紹其控制迴路與其參數的設計,為以後電路設計和面向汽車安全的應用打下了堅實的理論基礎。
  16. Construction monitor control and analysis of unsymmetrical side - span pre - stressed concrete continuous beam bridge

    邊跨預應力混凝土梁橋施工監控
  17. Thirdly, the method to calculate the 3 - d dynamic responding of layered transversely isotropic saturated soils to an arbitrary buried source in cylindrical coordinate as well as to an arbitrary harmonious source in rectangular coordinate is presented respectively. based on biot ' s wave theory, the 3 - d wave equations in cylindrical coordinate for transversely isotropic saturated poroelastic media are transformed into a group of governing different equations with 1 - order by the fourier expanding with respect to azimuth and hankel integral transform method or by the double fourier transform method with respect to horizontal coordinates in rectangular coordinate. then, transfer matrixes within layered media are derived under the continuous conditions, drainage conditions and the boundary conditions

    基於飽和土的biot波動理論,通過fouricr變換,將橫觀各向同性飽和土三維非軸波動方程轉化為一組一階常微分方程組,再經har止el變換,建立問題的狀態方程,求解狀態方程得到傳遞矩陣;利用傳遞矩陣,結合飽和層狀地基的邊界條件、排水條件及層間接觸和條件,首次給出層狀橫觀各向同性飽和地基在任意地展力作用下的三維非軸動力響應的解析解。
  18. The paper is concerned with periodic solutions to nonautonomous second order hamilton systems where, m : [ 0, t ] - s ( rn, rn ) is a continuous mapping in the space s ( rn, rn ) of symmetric real ( n x n ) - matrices, such that for some u > 0 and all ( t, z ) [ 0, t ] x rn, ( m ( t ) x, x ) > u | x | 2. a s ( rn, rn ), f : [ 0, t ] x rn r is continuous and f : [ 0, t ] xr r exists, is continuous and we study the existence of periodic solutions of the systems by using ekeland variational principle and the saddle points theorem. we suppose that the nonlinearity vf and potential f belongs to a class of unbounded functional. our work improves the existed results. we obtained the results of multiplicity of periodic solutions of the systems by using lusternik - schnirelman category theory and the generalized saddle points theorem, and the functional does not need the condition of constant definite. at last, we obtained the existence of infinity many distinct periodic solutions of the corresponding non - perturbation systems by using the symmetric mountain pass theorem

    ( ? , ? )為r ~ n中內積, | ? |為應范數。 f [ 0 , t ] r ~ n r, ? f ( t , x )存在且, h l ~ 1 ( 0 , t ; r ~ n ) 。利用ekeland變分原理和鞍點定理討論了該系統周期解的存在性,把非線性項和位勢函數放寬到一類無界函數,推廣了這方面工作的一些已有結果;利用廣義鞍點定理和lusternik - schnirelman疇數理論得到了該系統的多重周期解,取掉了泛函的常定要求;最後利用山路定理得到沒有擾動時系統的無窮多周期解。
  19. The major findings are listed below : ( 1 ) the film of 4. 1 ml consists of superparamagnetic nano - cluster with large perpendicular anisotropy and in - plane uniaxial anisotropy. the oscillatory curve of is symmetrical which can be described by a function of sin square

    Iml時,未形成薄膜,而是超順磁性的團簇,具有很大的單軸的垂直各向異性和平面單軸各向異性,色散關系曲線是的正弦類曲線。
  20. In light of the simulative research results, three methods are applied to analyze some controversial problems in this kind of structural system ( such as the concrete pouring sequence of continuous ends, the applying sequence of pretensioned force, the removal of the temporary supports, the concrete pouring style of continuous ends, the optimization of constructional reinforcement and prestressed reinforcement ). some important conclusions are drawn : the concrete pouring sequence of continuous ends should be in accordance with the principle of " interval end " ; the removal of temporary supports is also on this principle ( opposite to traditional opinions ). at the same time, other problems such as the shrinkage and creep effects of concrete, the c racking and failure pattern, the optimization of reinforced bars and prestressed bars are also analyzed in detail

    在此基礎上,于目前先簡支后結構體系中存在的一些有爭議的問題(如后端部澆築和后預應力張拉的順序、體系轉換中的臨時支座拆除順序、后端部澆築方式、后端部的預應力筋及普通鋼筋的優化等) ,我們分別運用三種方法進行了細致的模擬分析、研究,並得出了一些具有重要工程意義的結論:后端部的澆築順序和后預應力張拉的「隔跨」原則,臨時支座拆除的「隔跨」原則(此前人們一直認為「澆注和張拉」是最為合理的施工工序) ,混凝土的收縮、徐變先簡支后結構體系的影響一般較小等。
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