點陣參數 的英文怎麼說
中文拼音 [diǎnzhènshēnshǔ]
點陣參數
英文
lattice parameters-
Abstract : considering the second nearest - neighbor interaction and cubic, quartic anharmonic interactions simultaneously, we employ the multiple scales method combined with a quasidiscreteness approximation to calculate the lattice vibration. it is shown that the kind of nonlinear chain exhibits envelope soliton, envelope kink and envelope antikink soliton. these results can also be used to explain the experimental phenomena that the kink amplitude of the self - localized structure is determined only by the intrinsic properties of its lattices
文摘:同時考慮次近鄰諧振相互作用和三次方、四次方非諧相互作用，利用多重尺度結合準離散近似方法去計算晶格振動行為，發現一維非線性點陣中存在包絡孤子及正扭結型包絡孤子、反扭結型包絡孤子，解釋了自局域結構的幅度只取決于點陣中的固有參數的實驗現象In the self - calibration scheme, the thesis emphasizes the accuracy of camera intrinsic and extrinsic parameters. we presents an accurate f method based on corresponding point adjustment. the method adjusts coresponding points according to the fixedness of projective transformed cross ratio, then calculates f matrix accurately through linear and non - linear methods. when computing intrinsic parameter, a matrix, we simplify the step, and stress on the two important parameters of a. the result will be getten through solving kruppa equation based on svd decomposition. in order to compute extrinsic parameters, we use linear method to get initial r and t, then apply non - linear method to accurate them
提出了基於匹配點調整的f求精方法，先根據攝影交比不見性對手工選擇的匹配點進行調整，再用線性、非線性結合的方法求精f矩陣；在計算內部參數a中，進行了一定的簡化，把重心放在a中重要的兩個參數上，用svd分解法計算kruppa方程；在計算外部參數時，首先用線性法求解r 、 t ，然後再用非線性法迭代求精。A new algorithms and matrix simplification of a center - focus cubic system
焦點型全三次系統參數化簡與新矩陣法Considering the shape of quantum - wires, the modal x - ray diffraction of trapeze quantum - wire is established. the relationship between fourier transforms quantum wires shape and x - ray diffraction is presented to obtain the more exact info of parameters. so the fundamental characteristics of x - ray diffraction for quantum wire array are investigated
考慮到量于線的形狀，建立了梯形量子線的x射線衍射模型，得出量子線的形狀與x射線衍射之間互為傅立葉變換的關系，從模擬的結果得到更為精確的參數信息，從理論上認識了量于線陣列的x射線衍射的最基本特點。A general graphical user interface based on object - oriented technique, database and visualization in scientific computing has been conducted. we can draw electrical components of the distribution network and fill the components data easily. background programs analyze topology automatically and constitute node admittance matrix, node impedance matrix
它使用圖形元件直接繪成系統接線圖，在屏幕上輸入元件參數，后臺程序自動進行網路拓撲分析，然後基於稀疏技術，利用支路掃描法形成節點導納陣，連續回代法形成節點阻抗陣。Treatment of the spinel limn2o4 with aqueous acid produces - mno2. x - ray diffraction and atomic absorption spectroscopy show that - mno2 with lattice constant of 0. 806nm preserves the structural framework of the limn2o4 and the conversion of limn2o4 to - mno2 results in some contraction of the lattice
利用limn2o4與稀酸作用制得- mno2 ，經xrd 、原子吸收光譜（ aas ）分析表明- mno2仍然保持了尖晶石的面心立方點陣，晶胞參數0 . 806nm ； limn2o4經過酸處理、鋰離子脫出后晶胞體積發生了收縮。Moreover, compensated for aberration of ball lens by designing phase compensating plate to get a higher energy utilization rate. third, combining with the light beam property of dwdm system, put forward taking fresnel lens array as fiber arrayed collimator, designed differently structured lens array and discovered the arrayed collimator loss property, which compared with the existing parameter of fiber collimator, embodies many advantages as arrayed collimator
結合密集波分復用系統的光束耦合特點，提出用菲涅爾透鏡列陣做光纖陣列準直器，並設計不同結構的透鏡列陣，得出了該陣列準直器的光束耦合損耗特徵，與現有的光纖準直器的參數相比，體現出用菲涅爾透鏡列陣作陣列光纖準直器的諸多優勢。While carrying out the scheme, at first, the basic theory of antenna, array antenna and electromagnetic absorption, the performance parameter of antenna and parabolic antenna are deeply researched. in conformity, the characteristic and calculation of aperture field and near - to - far - field transformation for radiation pattern are detailed analyzed. second, the factors such as, the amount of the antenna elements, mutual coupling between each element, ground and the buildings on earth ' s surface, which affect the performance of array antennas ’ resultant field are stressed discussed
在系統實現過程中，課題首先從天線、陣列天線，以及電磁場計算方法的基本理論著手，分析了天線與拋物面天線的各項性能參數，以及天線的口面場和近-遠區輻射場的特點和計算;進而，更加深入的討論和研究影響天線陣列合成場強的各項因素，包括系統所使用的天線單元個數對陣列合成場的影響、天線單元之間由於互耦造成的影響、傳播過程中地面和/或地面建築物的影響等。The lattice parameter, a0, and fwhm of the uo2 + x ( fluorite type ) decrease initially and stabilize later as the increasing of reaction times at 200. the uo2 + x is progressively replaced by u3o8 as the oxidation proceeds at 300
200條件下，金屬鈾表層所形成的氟化鈣結構的uo _ （ 2 + x ）的點陣參數a _ 0和fwhm隨著氧化時間的增加逐漸減小，然後出現穩定。According to the computation process of the fem and assumption, associating of the fem mesh that have separated and the grouting stress diffusion equation, the integral stiffness matrix and the load matrix can be formatted, then the displacement of the nodal point can be got after solving the simultaneous linear equations. and then the grouting parameter can be computed and analyzed
然後，依據有限元法的計算步驟和所作的假設，結合已經離散化了的網格、灌漿壓力擴散衰減公式，形成整體剛度矩陣、荷載矩陣，經求解后得到結點的位移，並依此計算分析灌漿參數。The simulation results show that the feature point detection and tracking algorithm is feasible. next, matched points based essential matrix estimation is studied. the spacecraft attitude and position parameters are derived from essential matrix and the scale of motion is recovered with range information from laser ranger taken in account
再次，研究基於匹配特徵點對的本質矩陣的估計演算法，給出了由本質矩陣求取空間探測器的姿態信息和位置信息的方法，並且結合激光測距儀信息，得到探測器的運動比例參數，實現軟著陸過程的導航。Formulas are given for changing from any kind of parameters to the other three kinds of parameters. the model for attitude stabilization is established using quaternion or rodrigues parameters, and the model for attitude tracking is established using error quaternion or error rodrigues parameters. ( 2 ) attitude stabilization and attitude tracking are then studied
本文的主要工作和貢獻有以下幾點： （ 1 ）系統地研究了剛體姿態的參數化描述方法，給出了描述剛體姿態的姿態矩陣、歐拉角、四元數和rodrigues參數的相互轉換關系，建立了基於四元數和rodrigues參數的剛體姿態調節控制模型，和基於誤差四元數和誤差rodrigues參數的剛體姿態跟蹤控制模型。And then, the paper analyses the reason engaged in the directional property of underwater acoustic transducer and array, discusses the physical parameter of the directional property. to point acoustic source equal spacing linear array, the dissertation makes experiment analysis and simulation
分析了水聲換能器及基陣指向特性形成的原因、表徵指向特性的物理參數，並針對點聲源等間距線列陣的指向性進行了數學、實驗分析與方針。Assisted with the sensitivity of the linear analog circuits, the feasibility of parametric faults detection was analyzed through the maximum fault errors acquired at the sensitive frequencies, a stimulation matrix and its stimulation expression were put forward on the test points information
摘要從線性模擬電路靈敏度的概念入手，分析了通過獲取敏感頻點激勵下的最大故障誤差來檢測電路參數故障的可能性，提出了一種針對測試頻率和測點信息的激勵矩陣。Another phase, the high temperature phase, is hexagonal with space group p - 62m, which is stable from 300 to 800. the lattice parameter and the full width of half maximum ( fwhm ) of xrd peaks of u3o8 were also investigated at different temperature, and it were found that they change with the temperature under rules
在兩種相結構各自穩定的溫度范圍內， u _ 3o _ 8的點陣參數以及衍射峰半高寬（ fwhm ）出現了有規律的變化，這種變化表明u _ 3o _ 8的晶體結構依賴于環境溫度的變化。Traditional delay estimation based on ica requires the trail sequences to initialize the receiver, but the new algorithm based on ica does not need the trail sequences. it is based on the channel character of downlink, using the ica algorithm to estimate the multi - path mixture matrix, then, find the delay information which is embodied by the column vector of the mixture matrix. the simulation results show that it does enhance the performance of traditional detector without wasting the invaluable frequency resource
傳統的通道估計演算法需要訓練序列使接收端的參數調整到理想狀態，而本文提出的基於ica的通道估計的多用戶檢測演算法不需要訓練序列，它是利用下行通道的固有特點，用ica的盲源分離法估計出多徑通道的卷積矩陣，從而從中提取出通道的延遲信息，模擬實驗結果證明這種方法在節省了頻譜資源的同時取得較好的估計效果，使得傳統的接收機的誤碼性能得到了很大的提高。The major work is as follows : 1 ) based on dry hull modal analysis of flexure - torsion coupling vibration of unsymmetrical ship structures about longitudinal centerline, a transfer matrix method to calculate the dynamic characteristics is adopted after the parameters of structures are specified. taken both shear effect and warping deformations into account, the point and field transfer matrices are derived, and the influence on dynamic characteristics is computed according to different damaged positions and areas
其主要內容如下： 1 ）通過薄壁梁理論求得結構參數后，採用遷移矩陣法，在考慮剪切效應、轉動慣量和翹曲影響下，推導出求解破損船體結構的動態特性公式系統的場遷移矩陣和點遷移矩陣，並著重分析了船體不同破損程度和翹曲變形對船體振動的動態特性的影響。In the constructing of the diagnosis module using the technology of the combination of the fuzzy logic and neural network, which based on the fuzzy adaptive learning control network, a simple kind of capable method for consummate the structure and performance of network is introduced, which includes the rules extraction based on the maximum weights matrix and the parameters amendment based on genetic algorithm by floating - point coding. during the monitoring of the parts condition, the output of the condition monitoring system shows the good working condition of the executing agency by fuzzily deducing from the control instruction send by the auv ' s controller and motion status, and so offers the proof to complete mission and return safely
在珍斷模塊建模中採用模糊邏輯與神經網路結合的技術，以模糊自適應學習控制網路為核心，提出了一種簡單可行的基於最大權值矩陣的規則提取及基於浮點數編碼的遺傳演算法的參數調整的，完善網路結構與性能的方法，並在狀態監測過程中，通過對由控制器輸入的水下機器人運動控制量以及運行狀態的模糊推理，得到執行部件（推進器或舵）的工作狀態優劣程度，為保證水下機器人完成任務，安全返回提供控制依據。Determination method of artificial graphite lattice parameter
人造石墨的點陣參數測定方法Stochastic subspace identification method is the major in this article, and this method is based on the theory of projection of row space, and also uses qr decomposition, svd decomposition as well as least squares estimate to state space matrices of the discrete system so as to achieve the parameters of the dynamic behavior and it can achieve an accurate result
隨機子空間法是本文的論述重點，它運用了行空間投影的理論，通過qr分解和svd分解以及最小二乘估計來識別離散后的系統狀態空間矩陣，從而得到系統的動力學特性參數，識別精度較高。本文詳細的推導了隨機子空間法的理論公式，並編寫出相應的matlab程序。分享友人