mathematical technique 中文意思是什麼

mathematical technique 解釋
數學方法
  • mathematical : adj 數學（上）的，數理的；嚴正的，精確的。 mathematical instruments 制圖儀器。 mathematical logic...
  • technique : n. 1. （專門）技術；（藝術上的）技巧，技能。2. 手法〈如畫法，演奏法等〉。3. 方法。
  1. Secondly, the artificial neural networks and mixed evolutionary computation are employed into the mathematical simulation of complex geological structure, and with gis and visualization technique, the method of geological digital 3 - d modeling and visualization is presented. so, not only the functions of making geological section and querying spatial information could be achieved, but also the spatial distribution of geological structures and their complex relationship could be described visually. thereby an interactive and convenient way for engineering geological design could be actualized

    （ 2 ）提出了復雜地質構造數學模擬的神經網路方法與混合進化方法，並利用gis技術和可視化技術，深入研究了數字地質三維建模及其可視化方法，實現了地質三維任意剖切、信息空間查詢與管理等功能，從而為直觀描述地質構造的空間展布及其相互間的復雜空間關系，以及快捷、交互地進行工程地質設計提供了新的途徑與手段。
  2. The result of experiment validated the mathematical models and simulation methods. on the basis of theoretical models and experimental data, the least square technique was used to identify the indeterminable parameters in torque motor and parameters of magnetic fluid

    在理論模型和實驗數據的基礎上，用最小二乘參數辨識的方法對力矩馬達中的不確定參數及磁流體參數進行辨識，從而對添加磁流體的力矩馬達進行了實驗建模。
  3. In the positioning servo - system, which generally is configured by the d. c. pulse width modulator ( pwm ) velocity governing system and position servo - loop, the parameter perturbance of pwm velocity loop really exist by reason of such as the load behavior ; power voltage supply ; operating setting value, etc. 1, 2 ， and it cannot be ignored. by using the identification technique to form the mathematical model of the system, authors have confirmed the facts. therefore, to design the discrete sliding mode controller ( dsmc ) of the positioning servo - system, the perturbed parameters value bounds of the pwm velocity loop, which is as the controlled plant of position servo - loop, should be accounted. consequently, the design principle of dsmc for accounting system with parameter perturbance is proposed by the authors. the proposed method can ensure the stability of system with parameter perturbance and the behavior of non - overshoot, fast precise positioning. in order to reveal the effects of the design method, the comparative research work is done by the authors. also, it has been tested in an industrial experiment, the results proved it is satisfactory

    由直流脈寬調速系統（ pwm ）和位置環構成的定位系統中，速度環的參數隨負載特性；電網電壓；給定工況而攝動是不容忽視的.作者通過系統辨識建模也證實了這一事實1 ， 2 .因此在設計位置環的離散滑模控制時，必須針對速度環（即位置環的控制對象）的參數攝動范圍採用「對象參數攝動離散滑模控制器的設計方法」 ，以確保系統在參數攝動時的穩定性和快速、無超調、準確定位的優良動態品質.為剖析該設計方法的控制效果，本文作了對比性研究，並將該設計方法用於工業試驗中，取得了滿意的結果
  4. For the hyper accuracy interpolation technique, which resolves the accuracy limitation of pixel physical size, derives out the star spot interpolation accuracy limitation based on the star spot mathematical model and photoelectric statistics

    針對克服像元尺寸對測量精度限制的超精度內插細分技術，在建立了星點光斑數學模型的基礎上，利用光電統計理論，推導了星點光斑內插細分精度的極限公式。
  5. In this thesis, the boundary scan technique is discussed in detail and a boundary - scan test system based on computer is also developed. the main contents can be summarized as follows : 1. the ieee std 1149. 1 boundary scan testing standard is researched, and the mathematical description model and some basic theorems of boundary scan testing process is analyzed subsequently

    論文的研究內容及主要工作包括: 1 、對邊界掃描技術的基本理論和方法進行了分析和研究，並對邊界掃描測試過程中的數學描述模型以及邊界掃描測試的基本定理進行總結，為邊界掃描測試生成演算法的研究以及邊界掃描測試系統的開發奠定基礎。
  6. In view of the refinery practice, mathematical programming technique is used to construct the scheduling model, heuristic rules are applied to reduce the constraints and variables number in order to simplify the problem

    根據煉油行業的實際情況，用數學規劃方法建立各個功能模塊的調度模型，運用啟發式規則降低約束和變量的個數，從而降低問題的復雜性，是本文採用的一個主要方法。
  7. ( 2 ) it applies in - situ monitoring technique to access deformation of braced country rock and evaluation of its stability. mathematical statistics and grey prediction model are applied to the latter deformation prediction

    （ 2 ）採用現場監測技術對軟巖隧道支護后的圍巖變形進行監測，根據隧道圍巖的變形監測數據，評價軟巖隧道圍巖的穩定狀態，用數理統計的方法及灰色預測模型對圍巖的後期變形進行預測。
  8. In this paper all kinds of fuel cell, the current research situation and working principle of proton exchange membrane fuel cell ( pemfc ) are outlined. mathematical models in relation to electrochemistry reaction and transfer process in direct methanol fuel cell ( dmfc ) are compared and analyzed. latest progress of membrane materials and instrument analysis technique in dmfc has also been described

    介紹了燃料電池的分類以及質子交換膜燃料電池（ pemfc ）的工作原理和研究現狀，並對直接甲醇燃料電池（ dmfc ）中有關電化學反應及傳遞過程的數學模型進行了比較和分析，描述了適用於dmfc的膜材料以及儀器分析技術的最新進展，認為直接甲醇燃料電池是目前較理想的燃料電池，有著廣闊的發展前景。
  9. A technique of 3 - point positioning of welding seams with structure - light visual sensor is presented. with this technique, arc - welding robots can cope with the location variation of weld seams each time in batched manufacturing. on the base of suitable mathematical description, the localization problem is transformed into determining a displacement transformation matrix

    在此系統中利用機器人結構光視覺三點焊縫定位技術，使弧焊機器人可以適應批量生產中每次焊縫位置的變化，通過適當的數學描述，將焊縫定位問題轉化為確定位姿變換矩陣。
  10. By means of establishing mathematical model of noncircular gears driving mechanism and simulating mechanism motion state by using computer animated drawings technique, transmission feasibility has been examined

    通過建立非圓齒輪機構傳動的數學模型，運用計算機動畫技術模擬了機構的運動狀況，檢驗了傳動的可行性。
  11. In this paper, the contrast of original image is enhanced by nonlinear transformation based on the characteristics of grain image ; after comparing several methods of threshold segmentation and analyzing their performance and applicability on grain image, the adaptive threshold segmentation based on gradient image is presented ; the noise of binary image is reduced with morphological filter, the hollow in binary image is filled in and a recognition algorithm is designed to remove agglomerate particle ; on the basis of mathematical morphology two methods are adopted to segment agglomerate grains that are not agglomerated tightly ; the parameters of size and shape, perimeter, area, diameter, complexlity, longest feret diameter, shortest feret diameter etc, are extracted. this technique is applied in measurement of pearl powder ' s particle size

    本文根據粒度圖像的特點，採用非線性對比度增強處理改善顆粒顯微圖像的對比度；對多種閾值分割方法進行比較，分析了它們的性能和用於粒度圖像的適用性，在此基礎上提出了一種基於梯度圖像的動態閾值分割方法；對獲取的顆粒二值圖像進行形態濾波和空洞填充，設計了識別演算法去除凝聚體；對重疊不太嚴重的粘結顆粒採用了兩種基於數學形態學的分割演算法；提取了周長、面積、粒徑、復雜度、最長feret徑、最短feret徑等大小和形狀特徵參數，對珍珠粉等粉體粒度進行了測量。
  12. In applications of feed - forward linearization technique, the overall amplifier efficiency is significant concerned. giving mathematical analysis and simulation results, the paper present two practical methods to optimize the efficiency of a feed - forward amplifier system

    針對前饋線性化技術應用中倍受關注的系統效率問題進行了數學推導和模擬，提出實踐中提高效率的兩種方法及其適用條件。
  13. This paper evaluates the underground water resources and its safe levels of miming, and then studies the availability of molepipe drainage, a kind of practical underground water regulation technique. starting with the elevation of underground water resources and a safe level of mining through variable system theory, this paper analyzes the conditions of underground water resources based on the well - studied determination method of determining the two hydrographical coefficients : rainfall infiltration replenishment rate and irrigation replenishment rate. then considering irrigation, rainfall, drainage and other related factors, a mathematical model is set up for the calculation of underground water storage, exploitation on water regulation

    論文從灌區的地下水資源及其可開采量評價分析方面入手，在對兩個主要的水文地質參數即降雨入滲補給系數、灌溉入滲補給系數確定方法研究的基礎上，對灌區的地下水資源狀況進行分析，依據灌區的灌溉、降雨、排水條件及各種現狀因素，建立了地下水資源量計算的數學模型，西安理工大學工程碩士專業學位論文計算得到青銅峽灌區地下水的最大補給量和可開采量;另外對在開發利用地下水資源過程中的地下水位的調控進行了初步的探討，在銀北灌區開展對暗管排水調控地下水位的試驗研究。
  14. 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 ） 。
  15. How to use advanced control technique on alkali recovery process is the key point of this paper. rough set theory is a newly developed mathematical tool for dealing with uncertain knowledge. it can be combined with other theories and has great effects

    但是堿回收過程的控制自動化水平還不高，如何在堿回收過程中應用先進控制技術正是本文研究的重點，而粗糙集作為一種新型的處理不確定性知識的數學工具，可以結合現有的理論，發揮重要的作用。
  16. The research can offer some important references to the population ecology of endangerous plant, too. based on the dates of two different circumstances, two standard life tables of form. taais chinensis var. mcarei population are founded by mathematical technique according to premising with " space deducing time ", and the curves of survival rate, mortality rate and killing power were drew. the results showed both of the survival curves of population appeared to be a type of deevey - iii and the high mortality of seeding is one of the important reasons which caused taxus chinensis var. mairei to be endangered, which badly limited the enlargement of form. taxus chinensis var. mcarei population

    由於南方紅豆杉無解析木，因而以「空間推時間」 、 「橫向導縱向」方法，將林林依胸徑大小分級，以立木級結構代表年齡結構，採用分段勻滑技術，對兩個不同生境的南方紅豆杉種群編制特定時間生命表，繪制存活曲線，結果表明不同生境的南方紅豆杉種群的存活曲線均趨于deevey -型，兩地差異較小，幼苗死亡率極高，不同生境的幼苗死亡率均達到96以上。
  17. To do so, astronomers resort to fourier analysis, a mathematical technique that allows them to break a complex curve into a set of simple ones called sine waves

    為了達到這個目的，天文學家們採取了傅立葉分析方法? ?這是一種數學研究方式，它允許天文學家們將一個復雜的曲線圖分解位一些叫做「正弦波」的簡單曲線。
  18. Quantitative approaches to forecasting involve the use of statistical or mathematical technique ; they are the approaches used by theoreticians and professional planners

    定量分析的預測方法需要使用統計和數學技術，主要由精通理論和專業的計劃者來進行
  19. Recently, a new mathematical technique known as wavelet transform ( wt ) has become the focus of many science areas

    摘要近年來，一種被稱為小波變換的數學理論和方法成為眾多學科關注的焦點。
  20. At first, according to the fundamental q - switch equation, we analyze the q - switch system, including active q - switch and passively q - switch. we have derived simple analytic expression for all of the parameters of optimally coupled laser by using the mathematical technique of lagrange multipliers

    首先我們從速率方程出發對調q激光器的理論進行了分析研究，建立了主動調q和被動調q的理論和q參數的優化設計，並對聲光調q以及被動飽和調q的特性和模型進行了優化。
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