mathematical expression 中文意思是什麼
mathematical expression
解釋
數學表達式- mathematical : adj 數學（上）的，數理的；嚴正的，精確的。 mathematical instruments 制圖儀器。 mathematical logic...
- expression : n 1 表現，表示，表達。2 詞句；語句，措辭，說法。3 表情，臉色，態度；腔調，聲調。4 【數學】式，符...
-
This expression model was formally described in mathematical language to make it readily manipulated by computers through using the polychromatic sets
利用多色集合理論對這種故障表示模型進行數學形式的統一描述，使之便於計算機的表達和操作。 -
Mathematical expression of included angle between optical axis and ray axis
光軸與光線軸夾角的數學表示 -
Although uml activity diagram is magnitude component in uml, which agrees with modeling system dynamic process and describing workflow, it is immature in itself with the characteristic of non - oriented - object and essentially different from other uml diagram, and need to be ameliorated especially when applicated in workflow, own to the following limitation : firstly, activity diagram describes the behaviors of object class that response the inner action, so uml activity diagram is generally on the assumption of that there is no interruption caused by outer events during the process and no time defer, which limits the ability of uml activity diagram discribing complicated process ; secondly, user cannot obtain enough information of object data, and cannot make sure the character of mutual objects because of actually complicated object and relatively simple object expression in uml activity diagram ; lastly, owe to lacking rigorous mathematical basis and strict, effective methods of validation and analysis, uml activity diagram cannot support the simulation and optimization of workflow, let alone optimizating the model based on the result
Uml活動圖是uml的重要組成部分，適用於系統動態行為建模和描述工作流，與uml的其他圖形工具不同，它本質上是非面向對象的，而且其本身並不成熟，仍在改進之中，特別是在工作流應用方面。首先， uml活動圖描述的是響應內部處理的對象類的行為， uml活動圖通常假定在整個計算處理的過程中沒有外部事件引起的中斷，也沒有時間的延遲，這就限制了uml活動圖對一些復雜過程描述能力。第二，現實世界業務過程涉及的對象數據十分復雜，但是uml活動圖的對象語義卻非常簡略，用戶基本上無法從uml活動圖中獲取關于對象數據的信息，也不能確定參與交互的對象的特徵。 -
This research focused on applying the system analysis principle and mathematical modeling technique to study knowledge expression system for crop cultivation management. based on extensively collecting, understanding, analysis, and integration of expert ' s knowledge and experience, literature and experiment data for cotton cultivation management, the dynamic relationships of cotton growth and management indices to variety types, ecological environments and production levels were quantified, and a dynamic knowledge model for cotton management ( cottonknow ) was developed. by further incorporating the rule - based knowledge system for cotton management, a comprehensive and intelligent knowledge model - based decision support system for cotton management ( kmdsscm ) was established with component design
本研究著重利用系統分析原理和數學建模技術來研究作物栽培管理的知識表達體系，在廣泛收集及充分理解和分析棉花栽培管理專家知識、經驗和資料的基礎上，利用棉花栽培理論與技術方面的現有研究成果，並結合必要的試驗支持，解析、提煉和綜合棉花生育及管理指標與品種類型、生態環境及生產水平之間的定量化關系，首次構建了棉花栽培管理動態知識模型，並進一步結合基於知識規則的棉花栽培管理知識庫表達系統，設計和實現了綜合性、智能化和構件化的基於知識模型的棉花管理決策支持系統（ kmdsscm ） 。 -
Then, the mathematical models for workshop layout of general production line and automobile assembly - welding line are given, the topology model of multiple constraints expression and workshop layout is presented in depth, and then principles on position check and constraints check are also presented. a modified genetic algorithm is also proposed based on traditional generic algorithm
在此基礎上，以物流優化和空間利用率最大化為目標，建立了車間設備布局的一般數學模型和汽車裝焊車間設備布局的數學模型;深入探討了多種約束表達和車間布局的拓撲模型，提出了約束檢驗的方法和位置判定的原則。 -
One of a pair of marks, [ ], used to enclose written or printed material or to indicate a mathematical expression considered in some sense a single quantity
方括弧，中括號符號之一，用於托住一手寫或印刷或標明被視作單一數量單位的數字表達式 -
The expression language provides the following mathematical functions
表達式語言提供了下列數學函數。 -
So in our research, we bring up a new mathematical model as an exploration. method : correlation analysis is one of the most welcomed algorithm which have been used in gene expression data analysis
本研究的目的是在已有方法的基礎上，提出一種新的演算法，並針對這種方法設計一種建立基因調控網路的方法，編寫相應軟體。 -
The mathematical expression, which is used to calculate the variable phase center based on the mom, is derived first in the paper. it is proved that the variable phase center of the lpda is not superposition in the e - plane and the h - plane
文中採用矩量法，首次導出了基於矩量法多分段計算可變相位中心的表達式，證明了偵測合一系統中常用的對數周期偶子天線（ lpda ）在e面和h面的可變相位中心不重合。 -
A full mathematical model of optimal flow pattern design withengineering constraints was put forward, based on modern optimal control theory. an optimal flow pattern design was presented for optimizing meridional channel of axial flow turbine. according to integral optimization of turbine stages, a full physical model and mathematical expression were put forward for proposition of optimal flow pattern, including all performance parameters in turbine stages. this problem was further recast into a typical form control to maximize specific performance index such as work or efficiency of stage with given initial state, fixed terminal condition and constraints for part of state terminal variables. the program was also worked out according penalty function method and conjugate gradient method. the optimal distribution of c1ur1 ( r1 ) was obtained according to constraint conditions and maximized objective function
把近代最優控制論方法引入軸流透平葉片的設計，在優化的軸流透平子午通道內，建立包括透平級內所有性能參量的最優流型命題的完整的物理模型及其數學表達式，並歸化為一個在給定初始狀態、自變量終端固定、部分狀態變量終端受有約束的條件下，使級的某一性能指標（如級的功率）達到最優的最優控制問題，應用「代價函數法」及「共軛梯度法」編制計算程序，計算得到符合給定約束條件、並使目標函數取極值的最優環量分佈，結果是令人滿意的。 -
The relations linking output and input are quantitative ones capable of expression in mathematical form.
產出和投入的關聯是數量關系，可用數學形式來表示。 -
With the consideration of the vertical wave effect of soil and soil - pile interaction, an approximate analytical solution to vertical vibration of pile system with variable impedance in visco - elastic layered soil is developed. a simplified and practical mathematical model for interaction between soil layers is proposed, and its applicability is theoretically investigated. based on this model and by using laplace transforms and the transmit property of impedance function, the analytical expression of the impedance function and solutions of the displacement and velocity response function in frequency domain and in time domain at the pile head are derived
4 、從三維軸對稱土模型出發，對考慮樁土耦合作用、土層層間聯系以及樁周土豎向應力梯度變化條件下的成層粘彈性土中完整樁及變阻抗樁系統縱向振動問題進行了研究，提出了成層土中變阻抗樁系統縱向振動問題的近似解析解法和樁周土層層間相互作用的簡化而實用的數學模型，並利用拉氏變換和阻抗函數的傳遞性，獲得了成層土中任意段變阻抗樁樁頂阻抗函數的解析表達式，以及樁頂速度導納和時域速度響應解析解和半解析解。 -
Are included in a mathematical expression giving a
類型的數學表達式得到一個 -
These problems have different physical nature, but can be reduced to the same mathematical expression
這些問題雖然有完全不同的物理背景，卻往往導致完全相同的數學表達式。 -
In modified fiber - optic sensing system, quantitative analysis of the interaction of the analytes with the cladding is the theoretical foundation of fiber - optic mode - filtered light chemo - and bio - sensing. in our study, we took example for the fused silica fiber that we used, to deduce a mathematical expression for mfld
在修飾光纖體系定量獲取模式濾光信號的理論研究中，我們以我們所用的石英光纖為例，推導了光纖模式濾光信號的理論表達式。 -
The screw thread shading network is a good example of how displacement can be driven by a mathematical expression rather than a conventional texture map
螺紋材質網路是一個好例子，它證明了如何通過一個數學表達式來驅動置換，它強於一個方便的紋理貼圖。 -
3. based on the discuss and summarize for the merits and shortcomings of current terminal sliding mode, a new terminal smc technique is given for a class of high - order nonlinear dynamic systems. a mathematical expression is proposed to choose the terminal sliding surface for n - order systems
在討論並總結了當前terminal滑模控制的優、缺點基礎上，提出了一種新的適用於高階非線性系統的terminal滑模面設計方法，給出了對于任意階系統選擇te ? ? al滑模面的具體數學表達式。 -
On the assumption that the framed tower can be represented by multi - segment cantilever carrying a spring support, a mathematical expression to determine the natural frequencies of a framed tower is obtained by using the equation of the transverse vibration for the analytical model of elastic continuous body and the method of numerical solution
摘要框架和塔連接后可簡化為一個彈性支承的系統，利用彈性連續體分析法求解振動方程，推導出了計算框架塔自振頻率的理論公式。 -
The influence of the boundary on the seepage flooding in low permeability porous media ca n ' t be ignored when the thickness of boundary layer reaches a critical value. the larger the thickness of boundary layer is, the more obvious the nonlinear flow is. 4. factors affecting boundary layer are studied systemically, the mathematical expression of porous flow based on the experiment is derived
吸附邊界層的厚度大到一定程度將對低滲透介質中滲流規律產生影響，邊界層厚度越大，非達西現象越明顯； 4 、系統研究了影響邊界層的因素，並在實驗的基礎上，推導了考慮邊界層影響下的滲流力學表達式。 -
A ratio is a simple mathematical expression of the relationship of one item to another
比率為一項目與另一項目之間關系的簡單算術列式。
分享友人