first derivation 中文意思是什麼

first derivation 解釋
一階求導, 一階求微
  • 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...
  • derivation : n. 1. 引出，導出。2. 出處，由來，起源。3. 【語言學】詞源；派生。4. 衍生；衍生物。
  1. Following is the primary work and contributions of this thesis. first, the concepts about data lineage tracing are completed and refined, and the formal definition of derivation set and supplementary set are provided. these definitions form the basis for derivation set tracing

    本文的主要工作與創新有以下幾個方面：作者首先對與數據志相關的概念進行了完善和細化，給出了起源集的形式化定義，並提出了補集無關和補集相關的概念。
  2. The first experiment is the derivation and cultivation of human embryonic germ cell

    實驗一是有關人類胚胎生殖嵴幹細胞的分離培養。
  3. Since the first embryonic stem cell derivation from mouse blastocyst by british scientists in 1981, groups of scientists were devoted into the research field of stem cells. in 1998, two scientific groups of america obtained human embryonic stem cells and human embryonic germ cells respectively from human blastocysts and gonadal ridge of early embryos

    1998年，美國的兩個科學家小組分別從人體外受精發育而成的囊胚內細胞團和5 9周齡流產的胚胎原始生殖嵴中，成功獲得了人類胚胎幹細胞系和人類生殖嵴幹細胞系。
  4. This paper first gives out an new derivation method of generalized interpolatin, splines, and then obtains the analytic properties of the generalized interpolating splines with obstacles by the new method

    摘要本文由樣條的極值性質出發給出了微分運算元插值樣條（即廣義插值樣條）新的推導方法。
  5. The authors first apply basic theory of equivalent heat drop on the common circulation heat calculating model for thermal system in supercritical pressure power unit with second reheat cycles and other kind of condensing steam turbine by mathematical derivation strictly, based on the normal energy balance and theory of equivalent heat drop, aiming at characteristics of thermal system in which there are outer steam coolers that high pressure heater and low pressure heater carry

    摘要以常規熱平衡方法和等效熱降理論為基礎，針對二次再熱超臨界機組熱力系統高低壓加熱器均設置外置式蒸汽冷卻器的特點，經過嚴格的數學推導，將等效熱降理論應用於二次再熱超臨界機組熱力系統循環吸熱量計算的研究，並提出了適用於不同類型凝汽式機組的通用數學計算模型。
  6. Inteffiational speculation - orien. ed capital has being expanded sil1ce l970s, and express new character of institution and derivation. in l990s. tl1e second cl1apter ltighlights tl1e reason and the result of volatility in exchallge rate under an open econonty situation. first, after the anal }. sis ot + er the participants of exchangc lnarkct, the auu1or first argues that tire free flow of internatiot1al speculation - orientcd capital is the lnai11 source of volatility " in exchange ratc

    首先，本章回顧了國際貨幣制度背景，指出目前的國際貨幣制度實際上處於一種危機后並沒有得到意見統一的狀態，無規則的國際貨幣制度將長期延續下去；然後，本章對國際投機資本的范疇進行了定義，並相應指出，從20世紀70年代初期以來，國際投機資本的規模是急劇膨脹的，並且在20世紀90年代，國際投機資本還出現了組織形式機構化和操作工具衍生化的新特徵。
  7. The beginning point of the first research direction is that we design a type of load - balancing virtual topology which is insensitive to the traffic, such plan method has been proposed whose name is vlbs ( valiant load - balancing schemem ), the disadvantage of vlbs is that it can only be applied to the homogeneous network in which each node has the same capacity, in chapter2, a more general valiant load - balancing scheme ( gvlbs ) has been proposed, the advantage of the gvlbs is that it can be used both on the homogeneous network and heterogeous network, in this chapter, we will give the detail derivation process and numerical analysis. the beginning point of the second research direction is that we first design a virtual topology for the physical topology under a specific traffic matrix, for a while, the traffic has changed, the network performence will decline. under such condition, in chpater 3, a virtual topology reconfiguration algorithm is studied which can decrease the average weighted hops

    本文針對動態變化業務量情況下的wdm網路設計方法劃分為兩個主要的研究方向，第一個方向的研究出發點是可以在最初的虛拓撲設計過程中根據物理拓撲情況設計出一種虛拓撲出來，該虛拓撲是負載均衡的，在這種虛拓撲上跑的業務量矩陣特徵只要在某種范圍以內，無論它怎樣動態變化，網路都不會出現擁塞，但這種虛拓撲設計演算法vlbs的一個缺陷是它只能適用於同構網路，即每個節點所擁有的容量大小都相等，在第二章中，本文提出了一種更通用的負載均衡的光網路虛拓撲設計演算法gvlbs ，該演算法與傳統的負載均衡演算法vlbs不同之處在於vlbs演算法只能適用於同構網路而gvlbs演算法既可以適用於同構網路，又可以適用於異構網路，在本章中將給出了gvlbs演算法的的詳細推導和數值分析。
  8. The first part of this article starts with the analysis of the derivation of play, after exploring the theory of play, we find three comprehension of play, and it ' s just the secret of play

    文章第一部分從游戲的詞源學分析入手，在探尋了古今中外的游戲說之後，歸納出遊戲的三種解讀方式，並論述了游戲的意向特徵，是為對游戲秘密的探索。
  9. Starting from benchmark model of incentive mechanism, the paper discussed the statistical backgrounds of first order condition and likelihood ratio condition, the information meaning of sufficient statistics and its derivation in relative performance evaluation, and the improvement on incentive allocation by large sample theory and bayes estimation under multi - period

    從激勵機制的基準模型出發，探討一階條件法與似然比條件的統計背景、充分統計量的信息含義及其在比較業績評價方面的推廣應用、多期情形下大樣本理論與貝葉斯估計對激勵配置的改善。
  10. In this paper there are two parts. the first part is devoted to the discussion of the polynomial invariant on algebra split link, in special, on geometrically split link, by the derivation of the jones polynomial

    第一部分，通過紐結與環鏈jones多項式的導數性質，重點討論了代數分離環鏈，特別是幾何分離環鏈上的多項式不變量，且對于幾何分離環鏈，更加嚴格地給出了的ohtsuki不變量的整除性質。
  11. This method first builds up an optimal model which have a good performance, then according to the error and the derivation of the error between the output of the optimal model and the output of ac motor drive, design model controller by lyapunov theory

    該方法首先建立性能指標最優化模型，然後利用李雅普諾夫穩定性理論設計出模式控制器。根據最優模型輸出與實際電動機輸出的偏差及偏差導數，在模式控制器的作用下，使實際電動機的輸出跟隨最優模型的輸出，直至偏差為零。
  12. The marketing of jingtai company centered on service is based on the following four aspects : the first is the characteristics of marketing in domestic market, namely, products are exclusively used, with few users and huge purchasing power, the demands have more derivation and less flexibility, the purchasers are highly specialized and professionalized, the buyers and sellers can keep business relationship in long term, and the final sale is implemented ; the second is the reform of marketing mission in chinese catalytic cracking catalyzer market, namely, since the primary entering into the market in early 90s, the marketing mission of enterprises experienced the production mission and promotion mission in succession unconsciously

    而且還闡述了國內催化劑用戶對服務產生需求的現狀及原因。本文的重點是對京泰公司以「量體裁衣」服務為主的營銷對策確定的論述，根據對京泰公司的遠、近、中期主要市場用戶的需求分析，找到了客戶的真正需求，並結合京泰公司新產品的特點，回答了京泰公司以「量體裁衣」服務為主的營銷對策確定的原因。解釋了「量體裁衣」的內涵，並通過京泰公司的三個成功的案例，說明了此戰略選擇的正確性。
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