離差積和 的英文怎麼說

中文拼音 [líchājīhé]
離差積和 英文
deviation product sums
  • 離 : Ⅰ動詞1 （離開） leave; part from; be away from; separate 2 （背離） go against 3 （缺少） dispens...
  • 差 : 差Ⅰ名詞1 （不相同; 不相合） difference; dissimilarity 2 （差錯） mistake 3 [數學] （差數） differ...
  • 積 : Ⅰ動詞（積累） amass; store up; accumulate Ⅱ形容詞（長時間積累下來的） long standing; long pending...
  • 和 : 和動詞（在粉狀物中加液體攪拌或揉弄使有黏性） mix （powder） with water, etc. : 和點兒灰泥 prepare some plaster
  1. The radial motion will not only bring the range ambulation and windage to the one - dimension range - profile, but also bring the aberrance and blur produced on given condition that radar signal which is with large product of wide - time and wide - band

    對于大時寬帶寬積信號，目標高速運動不僅會造成目標一維距離像的距離走動和距離偏差，還會造成畸變和模糊。
  2. In this paper, the upwind scheme and the central scheme are presented for solving 3 - d n - s equations using the cell - center finite volume spatial discretization and four - stage runge - kutta time stepping scheme, with standard convergence acceleration techniques such as local time stepping and implicit residual smoothing

    在n - s方程的數值計算上，採用了中心差分格式和迎風格式，用格心格式的有限體積法進行了空間離散，用四步龍格?庫塔法作顯式時間推進，並採用了當地時間步長和隱式殘差光順等加速收斂措施。
  3. In chapter two, we consider full disceret scheme of mixed finite element methods for the following initial - value problems of linear integro - differential equations of parabolic in this chapter, we give the error analysis of this full discrete scheme and get optimal error estimates for the discrete solutions of u and p

    第二章討論下述線性拋物型積分微分方程初邊值問題混合有限元方法的后差全離散格式。給出了該全離散格式的誤差分析，得到了離散解逼近未知函數u以及伴隨速度p的關于空間和時間的最優階誤差估計。
  4. After the construct of the motion simulation model, genetic algorithm is used to do the adjustment of pid parameters of the control system of the joint motors, integral separation pid control and angle error analysis is finished, and three force / torque sensors, touch sensors, distance sensors and photoelectric switches are calibrated and installed

    在建立了機器人關節控制系統模型后，使用遺傳演算法對其關節電機控制系統進行pid參數整定，進行機器人關節的積分分離的pid控制策略和轉角誤差的理論分析，並進行了機器人三維力/力矩傳感器、接觸傳感器、測距傳感器和光電開關的標定與安裝。
  5. Many studies had attempted to characterize chemical weathering process by focusing on geochemisty of river particulate and sediment. the sediment geochemistry may reflect and compare with the carbonates and silicates weathering degree by introducing the chemical index of alteration ( cia ) and new sediment index of variation ( siv ) and elemental molar abundance ratio of the sediment. the one main objective of this study would provide and compare the relative weathering intensities of silicates and carbonates with the different basins

    2沉積物地球化學與化學風化進程和機械剝蝕率化學風化指數與化學風化率屬于表徵化學風化作用意義不同的函數，前者為相對概念反映流域巖石在原巖基礎上己發生淋溶作用的深度，主要受到了氣候因子的深刻影響（中國流域沉積物化學風化指數由北到南呈有規則的遞增序列，氣候因子對風化進程的影響掩蓋了巖性的巨大差異） ，而化學風化率含義是指單位流域面積巖石風化淋溶產生的離子絕對總量。
  6. Aiming at the enhanced positioning accuracy of wireless sensor network node location, an improved positioning algorithm which uses a differential error correction scheme that is designed to reduce cumulative distance error and node location error accumulated over the multiple hops is proposed in this paper, together with its basic principle and realization issues

    摘要本文針對無線傳感器網路節點的定位精度問題，提出了一種採用誤差修正的方法來降低累積距離誤差和定位誤差的傳感器網路節點定位改進演算法，給出了該演算法的基本原理與實現方法。
  7. Deviation from mean

    離均差積和
  8. In practice, it ’ s very hard to find any ideal scatter points to track, so this thesis focuses on the motion compensation algorithm base on motion parameters estimation, which is used in r - d fft imaging algorithm and verified by simulation. work of this thesis contains : first analyze the signal - processing model of isar system in detail, and establish a 3 - dimensional mathematical scattering model of moving target. then some improvements are made on existing compensation algorithm, to get a higher image quality and reduce compute burden

    本論文有以下幾點創新: 1 .在距離向的補償（包絡對齊）方面，採用基準相關法代替相鄰相關法或積累相關法，一定程度上解決了可能出現的包絡漂移和包絡突跳現象;根據目標運動軌跡特點，採用二次曲線擬合的方法，將包絡對齊時的局部誤差轉化為全局的誤差，以便實現較優的整體對齊效果。
  9. Firstly, the paper, combining the characteristic of synchronous pulse bursts and inhibition with the modified pcnn model, presents a way of finding the foveation points in the images adaptively and effectively, and simulates the human vision system. secondly, pcnn is extended to pcnns, based on the properties of information couple and transmission, an algorithm that is used to fuse images of the same target got by several sensors to an image is presented to simulate the human vision system. thirdly, combining the properties of synchronous pulse bursts, capture, and transmission and competition of waves, the paper presents two ways of classification, one is an algorithm based on the properties of neuron to capture and inhibit to classify the data taking on any complex unlinear distribution robustly, the other is based on the restricted distance and modified of the former to remove the influence of inferior samples in classification ; fin ally, based on the accumulative difference pictures, and the forming and transmission of pcnn wave, selecting and controlling the direction of autowave by connecting the neighbouring neurons selectively, the paper presents a way to simulate the tracks of moving object and detect the moving direction

    首先結合pcnn的同步脈沖發放和側抑制特性，提出了基於改進型pcnn的圖像凹點檢測演算法，該演算法是一種自適應而有效的圖像凹點檢測方法，並且較好地模擬了人類視覺系統；然後，結合信息傳遞和信息耦合特性，將pcnn擴展成pcnns （ pcnn網路群） ，提出了一種基於pcnns的圖像融合演算法，能夠將多個傳感器獲取的同一目標的圖像信息融合到一幅圖像中，有效模擬了人類視覺系統；另外，結合pcnn的同步脈沖發放特性、捕獲特性和波的傳播競爭特性，開拓地將pcnn用於模式分類中，提出了基於耦合神經元點火捕獲抑制特性的分類方法和改進的約束距離下的pcnn分類方法，前者可實現對樣本空間中任意復雜分佈訓練樣本的穩健非線性分類，而後者能夠消除訓練樣本中刺點對分類的影響；最後，結合累積差分圖像思想、 pcnn波的形成與傳播特性，通過各神經元之間連接取向來選擇與控制自動波的流向，將pcnn用於運動視覺分析中的運動軌跡模擬及運動方向檢測。
  10. In aim solver, the convergence rate depends on spectral properties of the aim matrix, and the near - zone threshold distance has a dramatic impact on the memory and cpu time. a poorly conditioned matrix occurs through aim when a smaller near - zone

    另外，自適應積分方法計算中，在保證計算精度的條件下，較小的耦合距離將極大減小內存需求和計算的復雜度，但同時誤差積累也導致矩陣的性態變壞。
  11. Finite volume method can deal with irregular boundary conditions. in this paper, we discrete the water domain into triangular meshes, and simulate dam breaking, water droplets. the same as finite difference method, we just specify waves source, the movement of water waves can be simulated automatically

    有限體積方法能夠處理具有不規則邊界水域的水流現象，在本文中，我們把求解的水域離散成無結構三角形網格，對潰壩問題、雨景等水流現象進行了模擬，和有限差分方法一樣，我們僅僅指定產生水流動畫的波源，水流動畫的細節均由數值方法產生，不需要人工的干預。
  12. In the implementation process, expert knowledge that easy to imply was concluded based on system distinguishing and maintainer ' s experience. in, the following practice in realization, we put forward parameter optimizing method using statistics theory to optimizing pid parameters, and have comparisons visually on different control policies and parameters

    在隨后的現場實現過程中，又針對pid控制參數難以整定的問題，創新性地提出了基於數理統計的離線參數尋優方法，通過對誤差平方積分等指標的統計，形象地作出了各種控制方法和參數設置下的控制效果橫向比較。
  13. In this paper, we consider mixed finit element methods for the initial - boundary value problems of two order hyperbolic equations and linear integro - differential equations of parabolic type, obtain the error estimates of the discrete schemes for this two kinds of problems. in chapter one, we consider the expanded mixed finite element methods for the followling 2nd order hyperbolic problems this method expands the standard mixed formulation in the sense that three variable are explixitly treated : the scalar unknwon, its gradient and its flux

    本文討論了二階雙曲方程和線性拋物型積分微分方程方程初邊值問題的混合有限元方法，得到了這兩類問題混合有限元離散格式的誤差估計。第一章討論二階雙曲初邊值問題的擴展混合元方法。該方法能同時逼近未知函數、未知函數的梯度和流體的流量，較好的模擬了帶有混合型邊界條件的二階雙曲問題。
  14. For solving the corresponding discretization equation, there are few re - sults on the construction of efficient solvers. most existing results only presented the related error estimate for a concrete problem discretized by covolume methods. in this paper, hierarchical basis method, domain decomposition method and precondtioned gmres method are constructed

    並且大部分已有研究結果均集中於給出對某一具體問題用有限體積法離散后的誤差估計，而對于如何高效求解其離散方程，這一無論從理論上講，還是從實際應用角度出發都具有重要意義和巨大實用價值的問題，目前這方面的研究結果還很少。
  15. It is well known that the integral and finite difference inequalities play a fundamental role in the development of the theory of differential and finite difference equations

    積分不等式和離散不等式在研究微分方程與有限差分方程理論過程中具有非常重要的作用。
  16. However, if the ring formed is smaller than the occulting object, the whole ring will be covered and we can only observe the dimming of the occulted object. this is exactly the case for eclipsing binary

    當物質脫離伴星進入黑洞時，它的溫度不高，和伴星表面物質的溫度差不多，這樣的溫度並不足以產生x射線，所以吸積盤外部是不會產生x射線的。
  17. The researchers analyze the slopes derived by different algorithms and conclude that the reasonable algorithms are those of three - order inverse distance square weight difference and three - order inverse distance weight difference

    摘要分析了不同演算法所提取坡度的最大值、標準差、坡度的分級面積數據、坡度提取所耗費的機器時間，提出在黃土丘陵溝壑區選用三階反距離平方權差分和三階反距離權差分演算法較為合理。
  18. Through text annotation, the findings show that : ( 1 ) it is the flexibility and diversity of learning ways in the university that lead to two different evaluated criteria to learning that caused students ' cognitive discord ; ( 2 ) the subjects avoided the conflict of the two criteria in three ways : the first was redefining the " learning " ; the second was positive attribution to poor score ; the third was involving a new cognitive factor - interest

    在對所獲文本信息進行了深入分析和詮釋后得到以下結果： （ 1 ）由於大學學習方式的靈活多樣性，導致了學習效能評價中出現了內部評價標準和外部評價標準的分離，引發認知失調； （ 2 ）被訪女大學生通過三種途徑協調兩種評價標準之間的矛盾：重新界定「學習」 ，引申出兩種學習觀；對較差的學習成績進行積極歸因；引入新的協調認知的因素興趣。
  19. According to the designing requirement of relay protection, the paper analyses the bad handling ability of single a / d converters, the conflict between high speed and high precision of vfc, low precision in inside a / d of mc9s12dg256, then brings forward the ad7890 which include multi - path switches, track / hold and a / d circuits. in addition, the traditional digital output circuit consists of parallel interfaces. photo - electricity segregation and middle relays, which are complex and low reliable

    傳統的開關量輸出電路結構一般由并行介面、光電隔離和中間繼電器組成，光禍多，電路復雜，可靠性差，我們採用mc33291作為開出介面晶元，大大提高了保護動作的可靠性，提高了驅動能力， mc33291的sp工介面也簡化了開出電路，減少了pcb板面積。
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