first-order theory 中文意思是什麼

first-order theory 解釋
一次近似理論
  • first : adj 1 最初的，最早的。2 最上等的，第一流的。3 基本的，概要的。4 高音（調）的。n 1 最初，第一；第...
  • order : n 1 次序，順序；整齊；（社會）秩序，治安；狀況，常態；健康狀態；條理；會場秩序；議事程序，日程；...
  • theory : n. 1. 理論，學理，原理。2. 學說，論說 （opp. hypothesis）。3. 推測，揣度。4. 〈口語〉見解，意見。
  1. The new technique allows first order shear deformation plate theory ( fsdpt ) or classical plate theory ( cpt ) to be used for modeling built - up wing structures, sandwich wing structures or the wing structures which the volume between upper and lower skin is empty or solid with a ' general planform

    根據翼面的幾何和結構特點，新技術能夠自主選擇經典板理論（ classicalplatetheory ，簡稱cpt ）或第一階剪切變形板理論（ firstordersheardeformationplatetheory ，簡稱fsdpt ） ，具有模擬空心、實心、夾層和組合等形式的翼面結構及三維建模的能力。
  2. By compressing a monolayer film, the coexistence of liquid condensed ( lc ) and liquid expanded ( le ) phases can be reached. the transition from le to lc is usually regarded as a first - order one, so the theory of crystallization can be applied. in this article we review our recent studies on the growth of lc domains in the le - lc coexistence region driven by the illumination of a fluorescent microscope. the mechanism of this unusual 2d domain growth phenomenon is discussed. the formation of faceted, dendritic and fractal - like domains as well as the evolution and the transition of these patterns are investigated

    當處于氣液界面的類脂類化合物的單分子膜被壓縮時，隨著分子間距的縮小，單分子膜將經歷一系列相變過程.通過熒光顯微術可以觀測到新相的成核和生長過程.由於單分子膜的二維特性，該系統中的實驗觀測對于檢驗和發展二維界面生長理論尤為重要.本文總結了近年來本課題組與相關單位合作，在單分子膜系統中發現的實驗現象以及對其生長機制的系列研究.內容包括對單分子膜系統中的成核、界面穩定性、枝晶生長、形態演變等的觀測和分析
  3. Abstract : by compressing a monolayer film, the coexistence of liquid condensed ( lc ) and liquid expanded ( le ) phases can be reached. the transition from le to lc is usually regarded as a first - order one, so the theory of crystallization can be applied. in this article we review our recent studies on the growth of lc domains in the le - lc coexistence region driven by the illumination of a fluorescent microscope. the mechanism of this unusual 2d domain growth phenomenon is discussed. the formation of faceted, dendritic and fractal - like domains as well as the evolution and the transition of these patterns are investigated

    文摘:當處于氣液界面的類脂類化合物的單分子膜被壓縮時，隨著分子間距的縮小，單分子膜將經歷一系列相變過程.通過熒光顯微術可以觀測到新相的成核和生長過程.由於單分子膜的二維特性，該系統中的實驗觀測對于檢驗和發展二維界面生長理論尤為重要.本文總結了近年來本課題組與相關單位合作，在單分子膜系統中發現的實驗現象以及對其生長機制的系列研究.內容包括對單分子膜系統中的成核、界面穩定性、枝晶生長、形態演變等的觀測和分析
  4. Theory of truth degree of first - order fuzzy predicate logics formulas based on the finite interpretation and enumerable interpretation and its application

    一階模糊謂詞邏輯公式的有限解釋真度和可數解釋真度的理論及其應用
  5. According to elastic mechanics theory and langrage equation, the first order shape function dynamic equation of tension weight of belt conveyor is derived, and the four series of experienced formulas is established, which provide theoretical instructions for determining the location of tension weight and the depth of concealed pit. 1fig., 2tabs., 5refs

    根據彈性理論和拉格朗日方程，導出了帶式輸送機平衡錘的一階模態動力學方程，求出了4組便於估算平衡錘振幅的經驗公式，該經驗公式為平衡錘的靜平衡位置及暗井深度的確定提供了理論指導.圖1 ，表2 ，參5
  6. In order to analyze the effect of aberration of amplitude and phase of laser beam on centroid position of focal spot, based on the fraunhofer formula for light wave scaler diffraction theory, according to the definition of first order moment centroid position, the general expression of focal spot centroid position directly depending on the complex amplitude of near field is derived

    摘要為分析振幅和相位發生畸變情況下光束焦斑質心位置所受的影響，以光波標量衍射理論中的夫瑯和費衍射公式為基礎，根據光斑強度分佈一階矩質心位置的定義，推導了直接依賴于光束近場復振幅分佈的焦斑質心位置的一般表達式。
  7. An analytical model was developed using the first - order laminated anisotropic plate theory to determine the stress and strain distributions within frp and steel pipe joint under combined torsional and tensile loading. taking advantage of the axisym metric nature of torsional and tensile loads about the pipe centralaxis, the equilibrium equations for the three - components joint system consisting of coupling, adhesive and pipe were setup based on the displace mentrelation

    通過對各種膠接接頭形式的分析，針對玻璃鋼管與鋼管及鋼管件在實際應用中的具體情況，選擇應用內、外增強型對接接頭進行玻璃鋼管與鋼管（件）的膠接連接，並建立了一種玻璃鋼管與鋼管（件）膠接管接頭在拉伸和扭轉載荷作用下膠層內應力分析模型。
  8. If frege and russell ' s first - order language is expanded to higher - order language, then it would not only be in accordance with quine ' s theory, but also can refrain from disputing over ontological problems about " existence "

    如果將弗雷格、羅素的一階語言擴展到高階語言，則既能與蒯因的理論連貫一致，又能避免無謂的「存在」本體論紛爭。
  9. Chapter ii reviews theories which has existed on corporate capital structure and corporate financial decisions, for example, static tradeoff theory, pecking order theory, and agent - principal theory. these views agree on that corporate financing order should be debt financing first, then equity financing

    已有企業資本結構和融資理論，無論是靜態平衡理論，委託代理理論，還是啄食順序理論都認為：企業外部融資時應首先選擇債權融資后選擇股權融資。
  10. These first order questions involve issues of political morality ; that is, normative legal theory involves first - order questions of normative ethics

    這些一階問題包含了政治道德性難題；即，規范法理論包含了規范倫理學的一階問題。
  11. A new type of viscoelastic stochastic finite element method is established using first - order perturbation theory based on local averaging method of random field and karhunen - loeve expansion theory of random process. the amount of computations is greatly reduced by transforming correlated random variables to a set of uncorrelated random variables. the relations of different random response variables are analyzed and monte carlo simulations for viscoelastic stochastic structures are investigated

    基於隨機場的局部平均法以及隨機過程的karhunen - loeve分解理論，通過一階隨機攝動方法建立了考慮材料近似不可壓縮的粘彈性隨機有限元公式，由相關結構分解減少計算量，分析了各結構隨機響應量之間的關系，給出了數字特徵的計算方法，研究了粘彈性隨機結構的montecarlo模擬驗證方法。
  12. In the last chapter, the submarine motion tendencies under first order and second order wave force actions are illustrated through theory analysis and simulations, which established the foundation for studying the design of autopilot control system under wave force disturbances

    最後本文從理論、模擬兩個方面分析和顯示了艇體在一階、二階波浪力作用下的運動趨勢，從而為研究潛艇近水面波浪力干擾下的潛艇自動舵設計奠定了基礎。
  13. Based on the vector radiative transfer theory and the characteristics of the sar technology, several sub - models for rice backscattering are constructed, including the leaf scattering model, the leaf extinction model, the trunk scattering model, the trunk extinction model and the water reflection model. then an integrated model for the first - order scattering mechanisms of rice, including all the main physical processes, is achieved

    針對合成孔徑雷達sar的技術特點，以水稻為研究對象，從矢量輻射傳輸理論vrt出發，通過模擬水稻主要器官稻葉和稻桿對電磁波的散射衰減作用等物理過程，建立了一套完整的水稻一次後向散射作用的物理模型，用以模擬水稻層的後向散射系數
  14. The details of the construction and characteristics of the new finite - difference scheme are presented in this thesis, by using both the integration theorem and the taylor expansion theory. it is proved that the new approach has the second - order accuracy on the grids with axis - symmetric voronoi cells and at least has the first - order accuracy in general. according to this character of the scheme and the computational requirements of the finite - difference approach, a striping procedure is involved to decompose the velocity model into variable spatial size grids with a nearly constant tune step preserved

    本文從積分定理和taylor展開兩個角度，詳細分析了基於voronoicell的非規則網格有限差分演算法的構造過程及性質，並且在理論上證明了本文的差分方法的精度與網格形狀的關系：當voronoicell為關于節點的軸對稱圖形時，本文差分方法具有二階精度；在一般的網格上，則至少具有一階精度。
  15. Based on the theory of primary aberration, the first - order optical parameters are determined at first through its paraxial analysis, flat - field condition, and aberration characteristics

    本文從初級像差理論出發，首先通過近軸分析、平象場條件和像差特徵獲得一階光學參數。
  16. Myers ( 1984 ) and majluf ( 1984 ) proposed new pecking order theory, which states that under asymmetric information conditions firms have no well - defined target debt - to - value ratio, and that firms in general prefer internal financing ( first ), then external debt financing ( second ), and external equity financing ( third )

    代表性學說有mm定理及其修正學說、啄食順序理論和新優序融資理論。新優序融資理論認為在不對稱信息條件下，企業首先偏好內部融資，其次是債權融資，最後是股權融資。
  17. The first - order perturbation method correct for forcing decoupling method based on perturbation theory is put forward to decrease error ; iii. the complex modal method is introduced into analysis of non - classical damping systems to eliminate error of forcing decoupling method, and improve the complex modal response spectrum, which can apply to design of non - classical damping systems ; iv. for exerting the energy dissipation capability of each device, a two - step optimum method, whose controlling function is extremum expectation of interbedded displacement, is put forward to optimize the number and position of device ; v. the problem of iterative method applied to analyze energy dissipation systems is indicate, and give some primary advice based on pilot study

    為改善上述缺點，本文進行了以下的研究工作：在忽略耗能器附加質量的基礎上，推導出適用於耗能減震結構的攝動法，減少振型分解法在迭代計算過程中的工作量，加快計算速度；針對運動方程的強行解耦所產生的誤差，根據攝動法原理，對其進行一階攝動修正；為消除強行解耦振型分解法用於非比例阻尼結構分析時產生的誤差，引入狀態空間對系統進行復模態分析，並改進了基於復模態理論的、適用於非比例阻尼結構設計的雙反應譜方法；對于耗能器的數量和位置優化進行了一些探討和研究。
  18. Secondly, the nonlinear optical properties with pna molecule in different solvents are studied through using the polarized continuum model and few states approach on the base of time dependent density functional theory, and the first order nonlinear hyperpolarizabilities in second harmonic generation process are computed

    然後在含時密度泛函理論基礎上採用極化連續模型和少態方法研究了不同溶劑中pna分子的非線性光學性質，計算了二次諧波振蕩過程的一階非線性超極化率，並討論了pna分子的非線性光學性質與溶劑極性之間的關系。
  19. Huang zhuo ( computer software & theory ) directed by zhang jian the algorithms and tools to solve first - order logic model searching ( folms ) problem with finite domain size are studied in this thesis. the satisfiability ( sat ) problem in the prepositional logic and folms are classic problems of computer science, which are important in theory and have wide applications in a lot of real - world problems

    命題邏輯可滿足性（ sat ）問題和有限論域一階邏輯模型搜索（ folms ）問題是計算機理論科學中的經典問題，不僅在理論上有著重要的地位，而且在許多實際問題中得到了廣泛的應用。
  20. First order theory

    一階理論
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