冪次定律 的英文怎麼說

中文拼音 [mìcìdìnglǜ]
冪次定律 英文
power law
  • 冪 : Ⅰ名詞1. [書面語] （覆蓋東西的巾） cloth cover2. [數學] （表示一個數自乘若干次的形式） power Ⅱ動詞[書面語] （覆蓋; 罩） cover with cloth
  • 次 : Ⅰ名詞1 （次序; 等第） order; sequence 2 [書面語] （出外遠行時停留的處所） stopping place on a jou...
  • 定 : Ⅰ形容詞1 （平靜; 穩定） calm; stable 2 （已經確定的; 不改變的） fixed; settled; established Ⅱ動詞...
  • 律 : Ⅰ名1 （法律; 規則） law; rule; statute; regulation 2 （律詩的簡稱） short for lüshi 3 （姓氏） a ...
  1. All the contents are developed around a set of scaling laws taking the form of exponentials which relate to almost all the issues of complexity including fractals, chaos, strange attractors, localization, and symmetry breaking, etc. the main work can be summarized as follows : starting from the law of allmetric growth three fractal dimensions in a broad sense are derived, and according to these dimensions, geographical space is divided into three levels, i. e., real space, phase space, and order space, each of which corresponds to a kind of dimension. based on the idea of spatial disaggregation and using the rmi ( relationship - mapping - reversion ) principle, the urban system is formulated as three scaling laws of the three spaces, including number law, size law, and area law, which can be transformed into a set of power laws such as allometric law and zipf ’ s law associated with fractal structure

    從異速生長律的縱向、橫向和切向三個角度將地理空間劃分為實空間、相空間和序空間，分別對應于空間系列、時間序列和等級序列三個層面，每個層面的測度各有自己的空間維度。基於「空間循環細分-等級體系-網路結構」的數理等價關系，利用rmi （關系-映射-反演）原則，成功地實現了城市系統宏觀模型的理論抽象，將空間復雜性問題表徵為簡單的指數式標度定律（包括數量律、規模律和尺度律） ，這一組標度律可以與一組冪次定律（包括具有分形性質的規模-數目律、異速生長定律和三參數zipf定律）互為變換。
  2. Moreover, the data processing method of accelerated life test is used to solve the problem of the reliability data conversion under different operating status to liquid rocket engine. and the counter power law model is introduced as the relation model between the characteristic life and the combustion chamber pressure, the accelerated life equation of the constant stress accelerated life test for the weibull distribution is obtained, through the accelerated life equation, the reliability estimate of different combustion chamber pressure is calculated

    再次，採用加速壽命試驗的數據處理方法對液體火箭發動機不同工況下可靠性數據折算的問題進行了研究，引入逆冪律模型作為特徵壽命與燃燒室壓力之間的關系模型，得到了weibull分佈下恆定應力加速試驗的加速壽命方程，並通過加速壽命方程折算出不同室壓下的可靠度估計。
  3. Along with r ka albert, we have used computer simulations and calculations to show that a growing network with preferential attachment will indeed become scale - free, with its distribution of nodes following a power law

    艾伯特與我透過電腦模擬與計算出來的結果顯示：具有優先連結的特性並且持續成長的網路，確實會變成無尺度網路，而且其中節點的分佈將符合冪次定律。
  4. First, briefly stated the reliability research developing history and current situation at home and abroad, the reliability test method and developing trends, then statistical analysis method and existing problems, and electrical connector reliability research ' s current situation and existing problems, i second, through analyzing the failure mechanism of electrical connector, and combining with the theory of probability and statistics, set up a reliability statistical model of electrical connector affected upon vibration stress, which is the anti - power law - weibull model, laid a foundation for working out electrical connector reliability test plans and treating electrical connector test data

    首先，對國內外可靠性研究的發展歷史和現狀，可靠性試驗的方法和發展趨勢，可靠性統計分析方法和存在的問題，以及航天電連接器可靠性研究的現狀和存在的問題進行了回顧和評述。其次，通過對電連接器進行失效機理的研究分析，結合概率統計理論，建立了電連接器在振動應力作用下的可靠性統計模型，即逆冪律?威布爾模型，為電連接器可靠性試驗方案的制定和試驗數據的統計分析奠定了基礎。
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