環坐標 的英文怎麼說
中文拼音 [huánzuòbiāo]
環坐標
英文
cyclic coordinate-
After introducing some backgrounds and the state of art of motion editing and motion synthesis, we introduce some basic operations of motion editing and show implementation results in eidolon. chapter 3 describes inverse kinematics, and two real time algorithms : ccd and jacobian transpose are discussed in detail. in chapter 4, we introduce the principle of multiple level b - spline, and motion path editing is achieved with such spline
在介紹了運動編輯和合成的一些背景知識和研究現狀后，本文第二章概述了運動編輯的一些基本操作並給出了在eidolon中的實現結果；第三章介紹了逆向運動學演算法，著重講述了兩個具有實時性的演算法：循環坐標下降法和雅克比轉置法；第四章詳細介紹了多層次b樣條原理和用其進行運動路徑編輯的方法。It is demonstrated by simulations that the control method is efficient and the fully cartesian coordinates is practically efficient. then the inverse kinematics of dual free flying space manipulator are mainly discussed in the third chapter, and the jacobean matrix for dual manipulator space robot is derived by fully cartesian coordinates, a control method for space manipulator based on the resolved motion rate control concept is proposed. then, the computer simulation verifies the effectiveness of the algorithm
首先，分析了閉環雙臂空間機器人捕捉目標物體時的運動學關系，給出了以完全笛卡爾坐標表示的系統運動jacobi關系；然後，以此為基礎研究了空間機器人雙臂協調操作的分解運動速度控制方法和協調操作問題；最後應用matlab語言對平面雙臂空間機器人系統進行了計算機模擬、模擬，模擬運算證實了上述方法的有效性。This thesis make a study on vector - contorl wvf system of asynchronous motor. in the course of study, making use of the mathematical model of asynchomous motor in mt axes. then both open - loop control system and close - loop vector - control system are respectively simulated with simulation block simulink in matlab
本文對異步電動機變頻調速系統進行了研究，利用異步電動機在二相同步旋轉mt坐標系下的數學模型，使用matlab中的模擬工具箱simulink分別對開環控制系統和閉環矢量控制變頻調速系統進行了模擬。The diploma project researches the three - coordinate nc system of the boring and milling machine. the system must depend on the hardware - ipc ( industry personal computer ) and on the windows software. the hardwares have the framework of embedding nc in pc, which means that the hardware is composed of ipc, the intelligent sport control card ( pcl - 839 ) and the i / o card ( pcld - 782 / 785 ). we research the nc system based on the operating system of dos and develop it into the nc system based on the operating system of windows2000. the new nc system will do better for the three - coordinate nc machine tool than the old one
本文是以本學院自行研製開發的印製電路板鉆銑床為研究對象，以工控機為硬體平臺，以windows為軟體平臺，硬體系統採用「 nc嵌入pc式」結構，即運用現有的工控機+運動控制卡+數字量輸入輸出卡的基本結構，把機床控制系統開發成基於windows環境下的數控系統，代替原有的基於dos操作系統下的控制系統，從而實現對三坐標數控鉆銑床的控制。On the condition of “ many - head ” and “ small drive ratio ” ， the plane double enveloping hourglass worm can not settle the problem of undercutting and sharpening simultaneously. it has devoted to a new type hourglass worm _ sphere double enveloping hourglass worm. the coordinate system is established according to the frock. the meshing equation and the tooth equation of worm and gear have been developed and the distribution of contact line on gear tooth is analyzed. to evaluate the meshing quality ， four meshing quality indexes and five original parameters are put forward. through mass programming computing ， the relations between meshing quality and original parameters are derived and depicted by graphs
考慮到平面二次包絡環面蝸桿傳動在多頭小傳動比條件下根切與齒頂變尖的矛盾很難同時解決且嚙合性能較差，介紹了一種新型環面蝸桿傳動? ?球面二次包絡環面蝸桿傳動.在研究過程中，根據工裝建立了坐標系，根據一二包過程的運動關系推得了嚙合方程和蝸桿與蝸輪的齒面方程，分析了蝸輪齒面上的接觸線分佈.為了評價嚙合性能，提出了4項性能指標和5項原始參數，通過大量編程計算得到了嚙合性能指標與原始參數之間的關系，並以圖表直觀的表示At first we improve the methods of iris image preprocessing, including an efficient arithmetic of evaluation iris images, an improving method of locating iris, calibrating iris image by the translation of coordinate and the circular shift of code, a eatimate of the background illumination by bicubic spline, and the image enhancement by the dual tree complex wavelet transform. next we designed the recognition arithmetic based on the location of the local maxima of the wavelet transform modulus. in the thesis lots of simulation are performed by means of matlab and visual c + +
首先改進了虹膜預處理方法，實現了一種快速高效的虹膜質量評價演算法;設計了一種改進的兩步虹膜定位演算法，準確的定位了虹膜的內外邊界;利用坐標轉換和編碼的循環移位實現了對虹膜圖像的配準;利用雙三次樣條函數擬合虹膜圖像背景，去除了非均勻光照對虹膜識別的影響;使用二分樹復數小波方法增強了虹膜圖像的對比度;在識別演算法方面，本文設計了一種「基於小波模極值點位置的虹膜識別演算法」 。According to their connection mode, the first motion code is modified. furthermore, the other g codes of milling machine is studied in this paper, most of them have been appended into this system. including cannon cycle,
此外，本課題中對銑床其它nc代碼也進行了研究，將絕大部分銑床nc代碼添加到了系統中，主要包括固定循環指令、平面選擇、坐標系選擇、旋轉、縮放、鏡像、子程序調用等。The properties of the key optical and electrical devices and the controlling mode in the system are put forwards. using the polar coordinate lines with different directions and the circulars with the same axis can be written together. by using he - cd laser ( 442nm ) as writing light source, the system can directly write line with width 05 # m on a sample
本文的主要目的是建立了一種極坐標和直角坐標相結合的激光直寫系統的原理樣機，探討系統的各部分器件的基本性能要求，為今後研製高精度激光直寫系統做好工作基礎，分析了激光直寫系統中關鍵器件的性能要求，基本控制方式，實現了極坐標方式下，任意旋轉角度直線圖形與共心圓環的光刻。In theorem 3 of this chapter, we prove that homological properities and homological dimensions of residue ring play very important roles. the homological properities and homological dimension of coordinate ring have been studied in the thesis of doctor yang jing - hua. in the second chapter, we generalize the results of coordinate ring to power se - ries residue ring
楊靜化在其博士論文中對坐標環進行了同調刻畫。我們在楊靜化的博士論文基礎上，把坐標環的同調性質和同調維數的相關結論推廣到了冪級數剩餘類環上。With the increasingly extensive application of the planar enveloping hourglass worm gearing, it becomes more important to rapid detection and high precision of the manufacture error. the surface of the planar enveloping worm gearing is complicate, and current domestic and international examination concerning its form generally is recur to the general three dimension measure apparatus or the special measure apparatus according to " the type of assemble " principle designed
由於平麵包絡環面蝸桿齒面比較復雜，其齒形、齒距、齒厚各不相等，因而關於它的製造誤差檢測也比較復雜。目前國內外關于其形面的檢測一般是藉助于通用三坐標測量機或按「裝配式」檢測原理（即測量狀態與加工狀態一致的原理）設計專用量儀進行的，一直沒有十分成熟的專門產品問世。Computer calculation : taking ellipse as an example and taking matlab as an empolder environment, the maximal driving force ( torque ) and each joint variable, variable ' s accelerations, coordinate values of exercise point in workpiece coordinate frame and the distance of this point from base coordinate frame can all be calculated. finally each joint variable in finishing work are calculated
計算機求值：以橢球為例，以matlab語言為開發環境進行動力學求值，計算得到各關節處應施加的最大驅動力（力矩）及該值下的各關節變量、變量加速度、加工點在工件坐標系中的坐標及加工點距基坐標系原點的距離等值。The steady - state errors of current closed loop system with pi current regulator in stationary and synchronous frames are compared using complex vectors. also, the corrector of rotor displacement control is studied by the root locus method
應用復合矢量概念，對比了靜止坐標系和同步旋轉坐標系pi電流調節器組成電流閉環系統的穩態誤差，並用根軌跡法對轉子位移控制系統的校正環節進行了研究。Li sheng and roberts studied 2 - role assignments on triangulated graphs. they puts the open questions : whether a given graph is k - role assignable for the case k 3 ? we study g _ n ~ ( d, s ) graph and the grid graph and the honeycomb rectanglar torus and honeycomb rhombic torus accordingly
本文對格圖和環面蜂巢圖以及g _ n ~ （ d ， s ）圖作了相應的研究，其中用到了一種坐標化圖的方法。Based on the review, the fluid flow and heat transfer in the curved circular and rectangular pipes have been researched by employing perturbation method and numerical simulation with a physical model under the rotational orthogonal curvilinear coordinate in a rotating curvilinear pipe with multi - parameters. we firstly analyzed the fully developed fluid flow and heat transfer, mixed convection heat transfer, the development of flow and heat transfer in the inlet in different cross section ( circular, elliptical, annular and rectangular crossection ). the variations of the secondary flow, axial velocity, distribution of temperature, the friction force on the wall, the ratio of friction factor as well as the nusselt number with different dimensionless parameters had been examined in detailed
本文在總結和分析了一個世紀以來有關曲線管道流動和換熱特性的研究成果的基礎上，以旋轉正交曲線坐標系統下的多參數旋轉螺旋管道中的對流傳熱為物理模型，通過攝動方法和有限體積法，首次對各種截面（圓截面、橢圓截面、環形截面、矩形截面）旋轉曲線管道內充分發展流動的流動結構和傳熱特性（包括耦合對流傳熱特性）以及旋轉曲線管道開口段發展流動的流動結構和換熱特性進行了系統的數值模擬和理論分析，詳細討論了各種無量綱參數對管道內軸向速度分佈、二次流結構、溫度分佈、壁面摩擦力、摩擦系數比以及管道nusselt數的影響，獲得了若干創新性成果。On introducing the development of cmms, this paper proposes a new concept - virtual coordinate measuring machine ( vcmm ) in application of virtual reality, expounds the concept, construction and building method of vcmm, describes the running environment of moving bridge vcmm
本文簡要地介紹了傳統三坐標測量機發展的現狀，結合虛擬現實技術，提出了三坐標測量機的一個新的發展方向虛擬坐標測量機（ vcmm ） ，同時闡述了虛擬坐標測量機的概念、組成和實驗方法，並說明?活動橋式虛擬坐標測量機的運行環境。The conventional linear and circular interpolation in cartesian ( rectangular ) coordinates were supplemented by polar coordinates and helical interpolation
傳統的笛卡爾的線形和環形內插法結合被極坐標和螺旋插補所補充。The program of data processing in determination of percent released of pharmaceutical preparation was developed ; two modules included in this program are connected but independence each other, one module calculate percent released, one module regress equation ; determination of percent released of pharmaceutical preparation, comparison of released curve in one reference frame and modeling mathematics model were realized by running this program. the program of formulation optimization based on artificial neural network was compiled to solve the nonlinear problem in formulation optimization. provided parameters were used to predict the released amount of a set of formulations
簡便，其計算結果與現有其他程序計算結果基本一致：開發固體制劑體外溶出試驗數據處理程序，程序運行時分為計算累積釋放百分率和優選最佳數學模型兩個相互連接又各自獨立的環節，實現了累積釋放百分率的自動計算，同一坐標系下釋放曲線的直觀比較，常用數學模型的擬合；開發基於人工神經網路的處方優化系統，解訣處方優化這一多目標、非線性優化問題，利用符合擬合精度的訓練結果預測給定處方的釋放度，預測結果與實驗結果基本相近。A discretization equation is derived by using a finite volume method in three - dimensional cylindrical polar coordinate system. algebraic equations are solved by iteration with a line - by - line method that is a combination of tdma in axial and radial directions, ctdma in tangential direction and adi method in three directions. the pressure and velocity coupling are solved with the simple algorithm
在三維圓柱坐標下，利用有限體積法推導離散方程；在軸向與徑向用三對角矩陣法（ tdma ） ，在周向採用循環三對角矩陣法（ ctdma ） ，採用交替方向亞鬆弛疊代法（ adi ）求解方程；推導同位網格下的壓力修正方程，用simple演算法處理速度與壓力的耦合；為加速收斂，採用適當的鬆弛因子。This thesis devoted to study three - dimensional data stored in database, three - dimensional optimization, the corresponding algorithm of two - dimensional data and three - dimensional data and principle of interactive technical application of virtual reality with three - dimensional model at the theoretical research. the goal of technical research is to develop a set of interactive system based on virtual reality and web with the ordinary computer, namely create a real - time and lifelike virtual reality environment without special hardware equipment, and applies this environment to the interactive system like inquiring, thus to set up a kind of high - quality interactive visiting and inquiring system based on technology of a new generation virtual reality
理論研究的目標致力於三維數據在數據庫中的存儲、三維模型的優化、二維坐標與三維坐標的對應演算法及虛擬現實互動式技術應用的原理；技術研究的目標是在web環境下，利用普通微機開發出一套基於虛擬現實技術的互動式系統，即在無需特殊硬體設備的條件下，能夠創造一個實時逼真的虛擬現實環境，並將此環境應用於查詢等互動式過程，從而建立起一種基於新一代虛擬現實技術的高質量的互動式訪問與查詢系統。Huang r x, and x. jin, 2002 : sea surface elevation and bottom pressure anomalies due to thermohaline forcing, part i : isolated perturbations. j phys oceanogr., 32, 2131 - 2150
張學洪，李薇，金向澤，黃瑞新， 2002 ：壓力坐標海洋環流模式的發展和應用前景，自然科學進展（已付印）分享友人