支點反作用 的英文怎麼說

中文拼音 [zhīdiǎnfǎnzuòyòng]
支點反作用 英文
bearing reaction
  • 支 : Ⅰ名詞1 （分支; 支派） branch; offshoot 2 （地支） the twelve earthly branches3 （姓氏） a surname...
  • 點 : Ⅰ名詞1 （液體的小滴） drop （of liquid） 2 （細小的痕跡） spot; dot; speck 3 （漢字的筆畫「、」）...
  • 反 : Ⅰ名詞1 （方向相背） reverse side 2 （造反） rebellion 3 （指反革命、反動派） counterrevolutionari...
  • 用 : Ⅰ動詞1 （使用） use; employ; apply 2 （多用於否定: 需要） need 3 （敬辭: 吃; 喝） eat; drink Ⅱ名...
  1. In view of bearing capacity of the elastoplastic theory analysis, the author made a comparison between the achieved bearing capacity limit load pi / 4 of round base ( space problem ) and the limit load pi / 4 of bar groundwork foundation design ( plane problem ) from soil mechanics at home and abroad as well as foundation criterion, and explained why the value of formula in present design criterion from soil mechanics is inclined to be conservative. in the light of the author ' s many years experience of vibration test on the spot and the research work of relevant projects, the author worked over the dynamic pile testing of the bearing capacity of foundation and batholith, and gathered the parameter of dynamic analysis and testing. the author also talked over the difficult point of pile foundation design criteria in present batholith engineering world, i. e. the confirmation of batholith bearing capacity of pile end, from the following aspects : a ) confirmation of single axis counter - pressure strength of rock in house ; b ) f. e. m calculation of elastoplastic model ; c ) calculation of soil mechanics ; d ) deep well load test

    然後，對巖土工程領域至今尚未解決，甚至不為人注意的考慮地基變形的地基承載力問題進行了實用化的探討，提出了考慮地基變形的地基承載力上程計算方法；對基於彈塑性理論分析的地基承載力國內尚未見報道的空間問題得到了圓形基礎（空間問題）的承載力界限荷載p _ （ 1 / 4 ） ，並與國內外土力學專著及地基基礎設計規范中的條形基礎（平面問題）的界限荷載p _ （ 1 / 4 ） ，進行了對比，從而定量上解釋了目前設計規范引用土力學承載力公式值偏於保守的這一情況；根據本文作者多年從事現場地基工程振動試驗及相關課題的研究工作，本文以截頭錐模型模擬地基，對地基（巖基）承載力的動測法進行了研究，為各類地基（包括巖基） ，匯總了動力分析和檢測川的參數：針對日前巖土工程界應用樁基設計規范中的難點? ?樁端巖基承載力的確定問題，從巖石室內單軸抗壓強度確定、基於彈塑性模型的有限單元法計算、土力學計算及深斤載荷試驗四方面進行了深入討論；本文作者根據多年現場載荷試驗的工程實踐，對深井荷試驗裝置的核心部分? ?反力裝置，設計了側壁支撐反力加載系統，該加載系統具有實用、簡便、穩定及安個等優點。
  2. In addition, the author find that the two indices : c / p and e / p are not valid indices to distinguish value stock from glamour stock, and two - dimension indices have better ability to distinguish value stock from glamour stock than one - dimension indices, which is same as lsv ( 1994 ). finally, the evidence of return mean - reverting from this chapter support the ideas of debondt & thaler ( 1985 ) on stock overreaction

    而且作者發現c用和e護指標並不是劃分價值投資組合和魅力投資組合的有效指標。而且二維指標對價值投資組合和魅力投資組合的區分能力高於一維指標，這與lsv （ 1994 ）的結論相同。最後，價值組合和魅力組合在組合形成前後的收益率反轉現象也支持了debondt & thaler （ 1985 ）有關股票市場存在過度反應的觀點。
  3. After analysis of the parameters of the devices, a conclusion is achieved that we can directly use the parameters of the dampers instead of devices to design the buildings in the common situation. then a one - freedom modal is used to compare the differences of performance between these two dampers under harmonic load. finally, three buildings, which are installed with viscoelastic dampers, viscous dampers and no dampers respectively, are analyzed using finite element method, time history method and response spectrum method, and the result is the same as that of harmonic analysis

    如果支撐剛度較小，應採用本文推倒的公式計算阻尼裝置的性能參數；利用單質點模型進行阻尼結構在簡諧荷載作用下的性能分析，並比較了粘彈性與粘滯阻尼結構在振動控制方面的性能差異；最後利用數值方法分別對未安裝阻尼裝置結構，安裝了粘彈和粘滯阻尼裝置的三種結構進行了反應譜和時程分析，得到了與理論分析一致的結果。
  4. A fuzzy image data model and a concept of fuzzy space are proposed, in which model visual feature, spatial feature and semantic feature are used for super feature in order to utilize advantage of traditional relation database as well as characteristics of image data and fuzzy retrieval. based fuzzy space, a method of similarity measurement of image is presented to support fuzzy features - based image retrieval and satisfy user ' s query requirement for image. in the thesis, a semantic template and the mechanism of dynamic relevant feedback are defined so that it can express user ' s query semantic and improve retrieval precision and useable capability for image retrieval

    研究了模糊檢索方法和相關反饋機制在圖象檢索中的應用，提出了一種模糊圖象數據模型和模糊空間的概念，該模型將可視特徵、空間特徵、語義特徵看作超屬性，既充分利用了傳統關系數據庫的優點，同時又考慮了圖象數據以及模糊查詢的特點，文中提出的模糊空間和模糊相似性度量方法能支持基於模糊特徵的圖象查詢，較好地體現用戶圖象查詢的應用需求，文中定義的語義模板和相關反饋機制能在一定程度上表達用戶的查詢語義，提高圖象檢索的準確率和易用性。
  5. Upon this occasion of removing my ammunition, i took occasion to open the barrel of powder which i took up out of the sea, and which had been wet ; and i found that the water had penetrated about three or four inches into the powder, on every side, which caking and growing hard, had preserv d the inside like a kernel in a shell ; so that i had near sixty pound of very good powder in the center of the cask, and this was an agreeable discovery to me at that time ; so i carry d all away thither, never keeping above two or three pound of powder with me in my castle, for fear of a surprize of any kind : i also carry d thither all the lead i had belt for bullets

    所以，這個缺點於我來說反而成了一個優點。我對自己的發現真是欣喜萬分，決定立刻把我所最放心不下的一部分東西搬到洞里來，特別是我的火藥庫和多餘的槍支，包括兩支鳥槍和三支短槍。因為我一共有三支鳥槍和八支短槍，在城堡里留下五支短槍架在外墻洞里像大炮一樣，作戰中需要時也可隨時拿下來使用。
  6. Abstract : biological invasions are a continuous feature of a non - equilibrium world, ever more so as a result of accidental and deliberate introductions by mankind. while many of these introductions are apparently harmless, others have significant consequences for organisms native to the invaded range, and entire communities may be affected. here we provide a survey of common models of range expansion, and outline the consequences these models have for patterns in genetic diversity and population structure. we describe how patterns of genetic diversity at a range of markers can be used to infer invasion routes, and to reveal the roles of selection and drift in shaping population genetic patterns that accompany range expansion. we summarise a growing range of population genetic techniques that allow large changes in population size ( bottlenecks and population expansions ) to be inferred over a range of timescales. finally, we illustrate some of the approaches described using data for a suite of invasions by oak gallwasps ( hymenoptera, cynipidae, cynipini ) in europe. we show that over timescales ranging from 500 10000 years, allele frequency data for polymorphic allozymes reveal ( a ) a consistent loss of genetic diversity along invasion routes, confirming the role of glacial refugia as centres of genetic diversity over these timescales, and ( b ) that populations in the invaded range are more subdivided genetically than those in the native range of each species. this spatial variation in population structure may be the result of variation in the patchiness of resources exploited by gallwasps, particularly host oak plants

    文摘:生物入侵是不均衡世界的一個永恆話題，尤其是當人類有意或無意地引入物種后.很多引入顯然是無害的，但另外一些則有著嚴重的後果，會給入侵地的生物以至於整個生物群落造成影響.本文總結了分佈區擴張的常見模式，概述了它們對遺傳多樣性和種群結構式樣所造成的影響.描述了如何根據以一批遺傳標記所得到的遺傳多樣性式樣來推斷入侵途徑，來揭示伴隨擴張選擇和漂變在形成種群遺傳樣式中的作用.本文對日益增多的群體遺傳學方法進行了總結，這些技術可以用來在不同的時間尺度上推斷種群規模所發生的巨大變化（瓶頸效應及種群擴張） .最後，我們以歐洲櫟癭蜂（膜翅目，癭蜂科，癭蜂族）一系列入侵的數據為例對一些方法進行了說明.從500 10000年的時間尺度上，多態的等位酶位點上等位基因頻率的數據表明: 1 ）遺傳多樣性沿入侵路線呈不斷下降的趨勢，支持了冰河期避難所作為遺傳多樣性中心的作用; 2 ）入侵地區的種群與該物種原產地的種群相比，遺傳上的分化更為強烈.這種種群結構在空間上的變異可能是被櫟癭蜂開發的資源尤其是櫟樹寄主在斑塊上出現變異的反映
  7. Under the supporting of the natural science foundation of china, " a study on the earthquake vulnerability and failure dependence of the building structures based on the push - over analysis ( 50178064 ) ", in this paper, it was studied the elastic - plasticity random response and the failure dependence of the rc structures, and some conclusions were obtained : 1

    在國家自然科學基金項目「基於靜力彈塑性分析的建築結構地震易損性及失效相關性研究」 （項目編號： 50178064 ）的支持下，本課題利用pushover方法對鋼筋混凝土框架結構進行了彈塑性隨機反應統計分析，研究了框架結構在小震和大震作用下的失效相關性問題，並得出了以下幾點結論： 1
  8. As for the other factors, such as marriage quality, medical expenditure, social support, negative life events, worry about children, employment, marriage state and occupation, each makes some significant contribution to distinguished aspects of swb in different degree ; and 3 ) the vulnerable women group in shanghai demonstrates the following characteristics in coping : though having paid active efforts to cope, they lack effective methods and necessary resources, resulting in poor coping effect and some of them show certain helplessness reaction when faced with stress ; and 4 ) except for the active problem - focused coping and positive reappraisal which do n ' t lead to the supposed positive effect, all the other coping strategies significantly influence their swb : helplessness reaction, escape and avoidance and self - inhibition decrease their swb, while seeking social support provide them with more social supports which increase their swb ; 5 ) the negative and positive effects of personality and some objective factors come into effect partly by increasing or decreasing their coping strategies

    （ 3 ）上海城市弱勢婦女群體在應付上表現出這樣的特點：雖然付出了積極的應付努力，但缺乏有效的手段和必要的資源，應付效果不佳，並且有一部分婦女面對應激表現出一定程度的失助性反應。 （ 4 ）除了針對問題主動應付及積極的認知再評價未表現出預期的積極作用外，其它幾種應付方式對她們的主觀幸福感均有顯著影響：失助性反應、逃避及自抑有明顯的消極作用，尋求社會支持通過使她們獲得更多社會支持而產生積極作用。 （ 5 ）人格和某些客觀因素對她們主觀幸福感的消極或積極作用有一部分是通過使她們更多或更少地採取某些應付行為來實現的。
  9. What the practical problems is often gotten is a single variable time series which has a time interval of t, reflect by a lot of interactive physics factor, containing the mark of all variates participating in movement, traditional time series analysis is to analyse going from this array to the form directly it ' s time develops, one dimension analysis loses useful information, the characteristics of phase space reconstruction method is to construct one dimension scalar quantity to high dimension vector, prop the geometry space of the state, show all dynamical information of system in phase space. the characteristic that just constructs again according to the phase space in this text, analyse the time series of responding, use the relevant knowledge of symbol dynamics and reconstruct phase space, put forward a kind of relation degree analysis method of the systematic mathematics model which has theory basis, so reach the correction of calculation mathematics model, make it accord with the actual systematic state

    實際問題中常常得到的是一個時間間隔為t的單變量的時間序列，它是許多物理因子相互作用的綜合反映，蘊藏著參與運動的全部變量的痕跡，傳統的時序分析是直接從這個序列去形式地分析它的時間演變，一維分析必然喪失許多有用信息，相空間重構方法的特點是把一維標量數據構造成高維矢量，支起狀態的幾何空間，在相空間中展示系統全部動力信息。本文正是根據相空間重構的特點，對響應時間序列進行分析，利用符號動力學、重構相空間等方法，提出一種有理論依據的系統數學模型關聯度分析方法，從而達到修正計算數學模型，使其更符合實際系統狀態的目的。
  10. For the sake of using the binary classification key more flexiblly to classify and identify the diseases and pests as knowledge reasoning, the integration of the principles of backward reasoning and two - way reasoning was put forward, which charges the binary key into the knowledge database of expert system, and computers can make use of the structure to search the branch node and realize the assistant identification of diseases and pests

    為了能更靈活地應用二叉分類檢索表作為知識推理進行病蟲分類鑒定，提出在常規推理的基礎上，融入反向推理和混合推理技術，將二叉分類檢索表作為知識裝入專家系統知識庫，計算機可以利用它搜索分支結點以實現病蟲輔助鑒定。
  11. In this paper, based on simulation modeling laws of geometry, constitutive relations, stress conditions and construction, a simulative calculation model has been proposed by considering the mechanical problems during the underground tunnel ' s construction and adopting constitutive models of enveloping type which can consider elasto - plastic materials and their cracking. the model can describe rock multi - media characteristic consider the interrelation of shoring structure and stratum reflect some influencing factors, for example : faultage interlayer joints, construction process and so on

    本文結合地下隧洞工程施工過程中的力學問題，基於幾何、本構、應力狀態和施工過程等四方面模擬建模的原則，採用可以考慮材料彈塑性和開裂的包絡型本構模型，建立能描述巖體多介質的特點和能考慮隧洞支護結構與地層的相互作用，同時能反映斷層、夾層、節理裂隙以及施工全過程等影響的巖體結構模擬計算模型。
  12. In this paper, based on simulation modeling laws of geometry, constitutive relations, stress conditions and construction, a simulative calculation model has been proposed by considering the mechanical problems during the underground chamber construction and adopting constitutive models of enveloping type which can consider elasto - plastic materials and their cracking. the model can describe rock multi - media characteristic consider the interrelation of shoring structure and stratum reflect some influencing factors, for example : faultage interlayer joints, construction process and so on

    本文結合地下洞室工程施工過程中的力學問題，基於幾何、本構、應力狀態和施工過程等四方面模擬建模的原則，採用可以考慮材料彈塑性和開裂的包絡型本構模型，建立能描述巖體多介質的特點和能考慮隧洞支護結構與地層的相互作用，同時能反映斷層、夾層、節理裂隙以及施工全過程等影響的巖體結構模擬計算模型。
  13. Important : if you run oracle as the database system for process choreographer, oracle 8i does not support the timestamp column type, and so the process choreographer database schema defines date columns instead

    要點：如果您將oracle當作數據庫系統來運行，並將其用於流程編排器，那麼oracle 8i就不會支持timestamp列類型，並且相反該流程編排器數據體系結構會定義date列。
  14. The location in a broadband system that serves as the root for the branching tree comprising the physical medium ; the point to which all forward signals converge and the point from which all reverse signals emanate

    寬帶系統中的一個點，用作由物理媒體組成的分支樹的根，所有正向信號都在此點會聚，所有反向信號都在此點發出。
  15. 5, such results as the list of the reaction force, deformation figure of the truss the contour of the nodes displacement, the contour of the element stress, and the contour of the node stress, are attained under the static force, the analysis of the finite element show that the maximum stress reaches the value of 285mpa, and then the frame body has the larger stress concentration in this position, if the welding around is not adopted

    通過ansys5 . 5軟體有限元分析，得出了各支座反力和節點應力列表，以及桁架在靜力作用下的變形圖、節點位移等值線圖、單元應力等值線圖、節點應力等值線圖。有限元分析計算表明，在不採用周邊焊的情況下最大應力可達285mpa ，具有較大的應力集中。
  16. This paper, focusing on the construction in the tunnel section with the worse geological conditions, discusses systematically the theory and the actual application on natm, and puts forward the proposal that the natural states of surrounding rock must be disturbed as small as possible and the self - loading of rock should be made full use of. as emphasizing the main point of the method the study of doing extensively the work of the measurements and the relevent analysis in the site takes up the much space in the paper

    本文針對不良地質地段的隧洞施工，系統論述了新奧法的理論和在工程實踐中的應用，提出了應盡可能少地擾動圍巖的自然狀況並充分利用圍巖自身承載力；重點是要在現場廣泛開展監測工作和相應的資料分析；然後根據現場的監測信息以及對圍巖的觀察和認識，對設計進行及時反饋，及時優化支護和施工參數用於和指導現場施工。
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