流代數 的英文怎麼說
中文拼音 [liúdàishǔ]
流代數
英文
current algebra-
Fundamental of laser 40ar / 39ar dating method : our laboratory has successfully set up the laser microprobe 40ar / 39ar geological dating method. our works include adjustment of the high - gain electron multiplier in mass spectrometer and correction of mass discrimination, adjustment of the laser, test for absorption ability of minerals to laser, designing and manufacturing high - vacuum sample chamber, sample preparation and irradiation, research on the variability of j values on the surface of rock chips, measuring atmospheric argon, determination and correction of blanks and ages, etc. the laser microprobe technique is particularly effective for some geological samples. it can be used, for example, for research of distribution of the components in extremely small samples that are very difficult to be separated and purified and those which contain excess argon
本文首先從常規~ （ 40 ） ar ~ （ 39 ） ar階段升溫定年實驗室的改進入手，進而建立了激光~ （ 40 ） ar ~ （ 39 ） ar定年實驗室，利用這兩種先進同位素地質定年方法，結合其他手段，對青藏高原腹地和北緣的阿爾金斷裂系多期地質事件進行了詳細的同位素年代學研究：一、參照國際先進實驗室的流程，對我們的常規~ （ 40 ） ar ~ （ 39 ） ar階段升溫實驗室在樣品的預處理、樣品的照射條件和系統空白測量及校正等方面進行了改進，使之產出的同位素年代數據更可靠並為國際同行所承認。The non - local turbulence parameterization, i. e., transilient theory was used in the host model mm4 to simulate the turbulent activities of the atmosphere
在中尺度區域模式mm4的基礎上對其中的湍流參數化方法作了改進，嘗試用非局地閉合方法代替局地The elements of the reduced - jacobian matrix are functions of some parameters of the system. for example, effective short ratio, power base ratio, coupling impedance and load flow of the system. for single - infeed hvdc system with a parallel ac line, computer simulations using power system analysis software package ( psasp ) were performed
用一種簡單的方法可以求得降階雅可比矩陣，由於降階雅可比矩陣的元素都是交直流混合系統中一些參數的代數函數，如有效短路比、功率基準比、連接阻抗和系統潮流等，因此，矩陣的特徵值也與這些參數相關。Process algebra, as one of the important tools for describing and analyzing concurrent and distributed systems, became an central branch of research in concurrency theory
進程代數作為描述和分析並發與分散式系統的重要工具之一是並發理論的主流研究方向。Following the introductory first chapter and the second chapter on linear algebra and convex analysis, the book is organized into two parts : linear programming and networks flows
在第一章簡介和第二章線性代數和凸分析之後，本書分為兩部分：線性規劃和網路流。In the part of orbit control, the main ideas in study is to define the nonlinear control system on a riemann manifold from the global viewpoint, and to build the intimate relation between the geometrical structure of state space and the state equation of nonlinear control system ; in the part of attitude control, the main ideas in study is to deduce mathematical model with good character based on global differential geometry ideas as well as li group and li algebra, moreover, to design corresponding control schemes
在軌道控制部分，研究的主要思想是從整體化的觀點出發定義一種建立在riemann流形上的非線性控制系統，將狀態空間的幾何結構與控制系統的狀態方程建立直接的聯系。在姿態控制部分，研究的主要思想是以整體微分幾何方法為工具，以李群與李代數等數學理論為基礎，從數學角度建立具有良好性能的數學模型，並設計出相應的控制方法。Program : to present new research results in the representation theory of finite and infinite dimensional algebras, lie algebras, algebraic groups, quantum groups, superalgebras, vertex operator algebras, and related applications to other fields of mathematics and physics
會議內容:這次會議將交流我國及世界其它國家在以下領域中的最新研究成果:有限維及無限維結合代數的表示理論;李群，李代數，代數群，有限群，以及量子群的表示理論;頂點運算元代數及其表示理論;與以上表示理論有關的數學物理及量子場論But whatever the origin of algebra, it is certain that this technique of computation originated in india and was current around 1500 years back
但是無論怎樣，代數的起源肯定是源自印度的某種計算技巧，比當前流行的要早1500年左右。The algebraic sum of the through variables associated with the edges incident to any vertex is zero.
關聯于任一頂點的各邊所附帶的流通變量的代數和為零。Because of the importance of the industry, the paper is valuable in engineering. the paper also discusses multi - field, multi - phase, multi - state and computer technology, so the paper is also valuable in study. in chapter 1, the background, the history and the study status of model of " flow of fluid - solid material along a curved line by stretch " are provided
論文研究流固物體曲線拉伸流動數值模擬的原理和方法，這個問題典型存在於聚合物抽絲及鋼鐵冶金連鑄工藝和加工過程中，由於涉及重要而龐大的產業，因而具有重要的工程價值，又涉及近代力學多場量、多相、多態和計算技術等綜合復雜問題，因而具有重要的學術價值。It also enables them to access information on various databases, including the enhanced police operational nominal index computer system eponics for wanted or missing person checks ; transport department s driver licence integrated data system valid for vehicle information and stolen vehicle checks ; and immigration department s registration of persons system for forged id card checks
警務人員亦可利用手提無線電通訊機和流動數據終端機登入多個數據庫，如在第二代警務處姓名索引電腦系統中檢索通緝或失蹤人士資料運輸署的車輛牌照及駕駛執照綜合資料電腦系統中檢索失車資料，以及入境事務處的人事登記系統中檢索偽造身份證資料。According to the partitions of strongly connected subclass, class and calculation of framwork matrix in the interpretive structural modeling ( ism for short ) processes, using bpsm and analyzing object to be modeled, the paper firstly analyses the system modeling objects, and then determines an viable structural model for enterprise internet marketing processes through system analysis, algebra analysis and system modeling theory
本文根據系統分析、代數分析和系統建模理論，應用業務流程結構化建模技術與方法，分析系統建模對象，通過解釋結構建模（ ism ）過程中的強連通子集劃分、級別劃分和骨架矩陣的計算，為企業網上營銷過程確定了一個合適的結構模型。For the case of transporting suspended fine sand, a single - fluid model is used to calculate the flow resistance by solving the navier - stokes equations. the computed agrees well with the measured. and for the case of transporting medium - sized sand, a two - layer model is used and the model produces a good agreement with the experiment data
對管道輸送細沙懸移質的流場，採用單流體模型進行數值求解n - s方程，計算結果與實驗資料相吻合;對具有分層流動的中沙管道水力輸送，採用兩層代數模型進廳了計算分析，阻力損失的預測結果與實驗吻合較好;最後對管道輸送粗沙的阻力特性和運動機理進行了分析探索，提出了進一步研究的方向。Numerical prediction of three - dimensional turbulent flow in turbine runner using algebraic stress model
用代數應力紊流模型預估水輪機轉輪內部三維流場A modified genetic algorithm ( mga ) framework was developed and applied to the flowshop sequencing problems with objective of minimizing mean total flowtime. to improve the general genetic algorithm routine, two operations were introduced into the framework. firstly, the worst points were filtered off in each generation and replaced with the best individuals found in previous generations ; secondly, the most promising individual was selectively cultivating if a certain number of recent generations have not been improved yet. under conditions of flowshop machine, the initial population generation and crossover function can also be improved when the mga framework is implemented. computational experiments with random samples show that the mga is superior to general genetic algorithm in performance and comparable to special - purpose heuristic algorithms. the mga framework can also be easily extended to other optimizations even though it will be implemented differently in detail
提出了一個改進遺傳演算法的結構，並且應用於帶有目標是最小平均總流程時間的流水調度排序中.為了改進一般遺傳演算法的程序，兩個新的操作被引進到這個操作中.這兩個操作為： 1 ）過濾操作：過濾掉在每一代中的最壞的個體，用前一代中的最好的個體替代它； 2 ）培育操作：當在一定代數內演算法不改進時，選擇一個培育操作用於培育最有希望的個體.通過大量的隨機產生的問題的例子的計算機實驗顯示出，提出的演算法的性能明顯好於一般遺傳演算法，並且和此問題的最好的專門意義的啟發式演算法相匹配.新的mga框架很容易擴展到其它最優化當中，只是實施的詳細的步驟有所不同According to test results of three or more than three points of flowing pressure and corresponding liquid output, the regression equations that contained the 3 undetermined coefficients were setup by the least squares method rule, and the undetermined coefficients were solved by the optimization method
根據3點或更多點穩定工作制度下產量與對應流壓的測試數據，建立了確定3個待定系數的非線性代數方程組。In this paper, the stability and multiplicity of closed geodesics are considered on some compact simply connected manifolds with the eohomology algebra td, n ( x ) of truncated polynomial algebra
本文研究一類單連通緊流形上的閉測地線的多重性與穩定性，這類流形具有截斷多項式代數作為其同調代數The high - performance solution of sparse linear algebra equations is very important in solving many problems from science and engineering applications, including computational fluid, simulation and design of materials, data processing in oil exploitation and earthquake prediction, numerical forecast of weather, and numerical simulation of nuclear blast
稀疏線性代數方程組的高效求解是許多科學與工程計算的核心，如計算流體力學、材料模擬與設計、石油地震數據處理、數值天氣預報從核爆數值模擬等都離不開稀疏線性代數方程組的求解。Net present value is the cumulative present value of income ( positive values ) and a series of future payments ( negative values ) from a series of investment cash flow using a discount rate to handle time values of money
凈現值是指在項目計算期內，按行業基準折現率或其他設定折現率計算的各年凈現金流量現值的代數和。Next, aiming at the state of the art in engineering turbulence models, one extended explicit algebraic reynolds stress model to simulate anisotropic buoyant turbulent flows. validation was done using experimental and other numerical results of turbulent thermal mixing in t - junction flows
進一步的，針對當前考慮浮力作用紊流模型的研究現狀，導出了適合模擬各向異性的浮力紊流的顯式代數雷諾應力模型，並利用t型交叉管內的溫度混合試驗成果進行了分析驗證。分享友人