精算符號 的英文怎麼說

中文拼音 [jīngsuànfúháo]
精算符號 英文
actuarial notation
  • 精 : Ⅰ形容詞1 （經過提煉或挑選的） refined; picked; choice 2 （完美;最好） perfect; excellent 3 （細）...
  • 算 : Ⅰ動詞1 （計算數目） calculate; reckon; compute; figure 2 （計算進去） include; count 3 （謀劃;計...
  • 符 : Ⅰ名詞1 （符節） tally （with two halves made of wood bamboo jade metal issued by a ruler to gener...
  • 號 : 號Ⅰ名1 （名稱） name 2 （別號; 字） assumed name; alternative name3 （商店） business house 4 （...
  • 精算 : actuarial science
  • 符號 : 1 （記號; 標記） character; sign; symbol; mark; code; notation; expression; denotation; sentinel ...
  1. In the last part, the relationship of the field current with the operational factors of the turbo generator is difficult to express exactly, belonging to the complexity of building the generator model and the difficulty of identifying generator parameters, gp algorithm is presented, which is better than other method in symbol regress

    由於發電機的建模與參數辨識困難，發電機勵磁電流和機端量之間的關系難以用精確的數學表達式來描述。利用gp演算法在符號回歸中的應用，得出發電機勵磁電流和機端量之間的關系表達式，用於故障診斷，並通過算例驗證了該方法是有效的。
  2. In this paper, they are set forth at first that the kinds of computer - simulation of electronic devices, the development and the requirements of mosfet ' s model and the way of gain the models " parameters, the dc models have been bui it in chapter 2 and the models of big signals have been deduced in chapter 3, they are different from the equivalent circuit models in the traditional software pspice that they come from the numer i ca i - s i mu i at i on wh i ch is based on the essence equat i on, so the precision of simulation is enhanced ? mosfet ' s small signal models of low frequency, intermediate frequency and high frequency have been built in chapter 4 and chapter 5, although the equivalent circuit models in pspice are used for reference to bui id them, they have their own characteristics which are analyzed at a i i kinds of situations, so that the simulation software for mosfet can be written according them and it i s a i so benef i c i a i for us to catch the gen i us character i st i cs of mosfet and to d esign all kinds of applicable devices the correctness of the models is simply proved in chapter 6

    本文首先介紹了電子器件計算機模擬的分類、 mosfet的建模發展動態、對器件模型的要求以及模型參數的提取方法。在第二章中建立了mos晶體管在直流端電壓條件下的工作模型；第三章推導了mosfet的大信號模型，這兩類模型不同於傳統模擬軟體例如pspice中的等效電路模型，而是從模型方程出發，採用數值模擬的方法，提高了模擬的精度。第四章和第五章分別建立了mos晶體管低頻、中頻、高頻的小信號模型，雖然借鑒了pspice模擬軟體中用等效電路模型的方法，但是本文分別討論了準靜態和非準靜態時器件的本徵部分以及包含非本徵部分工作于低頻、中頻和高頻條件時的模型，可以根據這些模型編寫相應的模擬軟體，這樣在做器件的模擬分析與器件設計的時候，就可以利用模擬軟體逐步深入地分析器件在不同的條件下和器件的不同部分在工作時的各種小信號特性，有利於抓住器件工作的本質特性，設計出符合要求的各類通用和特殊器件。
  3. In this dissertation, with the aid of many types of constructive transformations and symbolic computation, some topics in nonlinear waves and integrable system are studied, including exact solutions, painleve integrability, backlund transformation, darboux transformation, symmetry ( similarity reduction ), conditional symmetry, lax integrable hierarchy, liouville integrable n - hamilton structure, constraint flow, involutive system, lax representation, r - matrix, separation of variables and integrable couplings. chapter 2 and 3 are devoted to investigating exact solutions of nonlinear wave equations : firstly, the basic theories of c - d pair and c - d integrable system are presented

    本文以構造性的變換及符號計算為工具，來研究非線性波和可積系統中的一些問題：精確解（如孤子解、周期解、有理解、 dromion解及compacton解等） 、 panileve可積性、 backlund變換、 darboux變換、對稱（相似約化） 、條件對稱、 lax可積族、 liouville可積的n - hamilton結構、約束流、對合系統、 lax表示、 r -矩陣、變量分離及可積的耦合系統
  4. The second part, with the aid of many types constructive transformation and symbolic computation ( especially wu algebraic elemination method ), some topics in nonlinear evolution equation are studied, including exact solution ( solitary solution, periodic solution, rational function solutions and jacobian function solution ), backlund transformation, cole - hopf transformation, dromion solution and its construction etc. charter 2 introduces ac = bd model and its application about partial differential equations

    第二部分以構造性的變換及符號計算特別是（吳代數消元法）為工具，來研究非線性演化方程中的一些問題：精確解（如孤子解、周期解、有理解和雅可比橢圓函數解（雙周期解）等） 、 backlund變換、 hopf變換， dromion解及衰變結構等第二章介紹了求解pdes的ac = bd模式及其在偏微分方程中的作用。
  5. Chapter 7 introduces and analyzes some timing error detection and feed - forward timing recovery algorithms for gmsk signal. the auto - correlation method is improved by using a post - filter. simulation results show that the improved method has better estimation accuracy

    首先分析比較了常見的gmsk符號同步的定時誤差檢測器演算法和前向定時參數估計演算法，並用后濾波的方法對定時參數估計的自相關法提出了改進，提高了演算法的估計精度。
  6. It is proposed on the basis of the analysis on newton method and the preconditioned conjugate gradient method ( pcg method ). numerical derivatives can be evaluated by symbolic differ - entiation ( sd ), finite difference approximation and automatic differelltiation ( ad ). ad has significant advantages over other two approaches

    自動微分是一種新的能精確而有效地計算導數的方法，它優越于傳統的微分方法，例如它比符號微分和差分方法的計算成本低，又比差分方法計算精確，自動微分在近幾年發展迅速，應用廣泛。
  7. By using the solutions of a new auxiliary elliptic equation, a direct algebraic method is proposed to construct the exact solutions of some nonlinear evolution equations. the main difference between this method and previous auxiliary elliptic equation methods is that the balance order becomes smaller after using the new auxiliary elliptic equation. therefore, the derived algebraic equations are greatly simplified. meanwhile, the obtained new solutions contain more parameters to be chosen. for some special cases, they give the previous known solutions. it is shown that some new exact periodic solutions of some nonlinear evolution equations are explicitly obtained with the aid of symbolic computation

    利用一個新的輔助橢圓方程將求解非線性發展方程精確解的問題轉化為一個代數方程組進行求解，與已有的輔助橢圓方程法的主要不同是，應用這一新的輔助橢圓方程后降低了平衡次數，減少了所得的代數方程組的個數和方程的項數，從而大大地簡化了代數方程組的求解.同時，由於輔助橢圓方程的解中包含了更多的可選參數，從而給出了非線性發展方程的更多形式的解.作為應用，藉助于計算機的符號計算，求得了一些非線性發展方程的新的精確周期解
  8. Finally, we study the ( 2 + l ) - dimension nonlinear dispersive long wave equation skillfully, we find the self - transformation between the two equations and turn the ( 2 + l ) - dimension nonlinear dispersive long wave equation into a simple ( 2 + l ) - dimension pde. then, with the homogeneous balance method we obtain the hopf - cole transformation between the ( 2 + l ) - dimension pde and the heat equation. through it, we obtain abundant exact solutions of the ( 2 + l ) - dimension nonlinear dispersive long wave equation with the matlab, including the multi - solitary wave solutions

    ） : = 0 . （ 2 ）巧妙的發現了（ 1 ）與（ 2 ）之間的自變換，將這個方程組轉化為一個簡單的偏微分方程，並利用齊次平衡法得到了此方程與熱傳導方程之間二維形式的物pf - cofe變換，從而藉助m胡ab的符號運算得到了2 + l維非線性色散長波方程包括多孤子解在內的多種新精確解。
  9. Some theoretical extensions are first made in this paper, with the following concepts, theorems and models presented - partial derivative and high - order partial derivative of waveform polynomial for describing the relation between input transitions and output transitions and redefining circuit sensitization ; the concept of waveform polynomial vector for describing a circuit with multiple inputs and outputs, especially for the unified description of circuit modules ; a sensitization theorem for sequential circuits for the purpose of exact timing ; theorems for transition numbers in circuits used to solve problems on noise, power consumption and etc ; waveform polynomial description for sequential circuits used to give a unified form for the function and timing behavior of a sequtial circuit ; and a data structure of generalized list for the representation and manipulation of waveform polynomial

    波形多項式偏導和高階偏導的新概念，用來精確描述輸出跳變與輸入跳變之間的關系，並在本文中用來重新定義了電路的敏化和冒險；波形多項式向量的概念，用於形式化描述實際中的多輸入多輸出的電路，特別是用於統一描述電路模塊的功能及定時行為；時序電路的敏化定理，用於時序電路精確定時分析；波形多項式描述跳變及跳變數的定理，用於噪聲、功耗等問題的描述；時序電路的完整波形多項式描述，用於時序電路功能和定時行為的統一描述；波形多項式的多項式符號表示和運算的模型以及數據結構，用來實現對波形多項式比較有效的描述和運算。
  10. After studying the shicha algorithm of parallax theory in shoushi calendar and huihui calendar, this paper points out that shicha algorithm in huihui calendar is better than that of shoushi calendar about the completeness of variables, the choice of the sign of shicha and the procession of shicha algorithm, thus concluding that it can help us to evaluate objectively the solar eclipse theory of ancint china and arabia

    對《授時歷》和《回回歷法》中的時差演算法進行比較研究表明， 《回回歷法》中的時差演算法在自變量的完備性、符號的選擇以及精度等方面，均明顯優于《授時歷》 ，該結論對評價中國和阿拉伯傳統日食演算法優劣有一定參考意義。
  11. Secondly, we have obtained plenty of chaotic data, and presented a new method derived from neural network theory to process the symbolic series, which improves the accuracy of measurement. thirdly, we use the chaotic system to measure frequency

    其次，實驗中測得了大量的混沌數據，在神經網路模型的啟發下提出了一種新的符號序列去噪演算法，應用該演算法提高了測量精度。
  12. Based on analysis of synchronization techniques in ofdm, this dissertation present a ml arithmetic to estimate time and frequency offset using symmetrical & conjugate prefix. the correlation peak of likelihood function curve is very sharp according this arithmetic, so the symbol synchronization by this arithmetic is exacter than that by general arithmetic using cycle prefix

    文中在全面分析ofdm同步技術的基礎上，提出了利用對稱共軛前綴的最大似然估計法來進行符號定時和頻偏估計，相對于傳統的利用循環前綴的最大似然演算法，這里提出的演算法可以獲得尖銳的相關圖樣，定時精度高，頻偏估計誤差小。
分享友人
分享到 Line

分享到臉書