correlation of zero 中文意思是什麼

correlation of zero 解釋
零相關
  • correlation : n. 相互關系，相關（性）；對比；交互作用；【數學】對射，異射。 correlation index 關聯指數。 correlation mineral 對比礦物。
  • of : OF ＝Old French 古法語。
  • zero : n （pl zeros zeroes）1 【數學】零；零號。2 零位；零點，起點；（溫度表的）零度，冰點；座標原點；無...
  1. The effort of manganese removal was studied and the kinetics of manganese removal was tried to establish. the factors of dissolved oxygen concentration, fe2 + concentration, ph, p concentration and closing of the filter were studied to evaluate their effort for biological manganese removal, and the correlation of residual manganese and oxidation - reduction potential was also discussed. as the iron content of water was high, experiment results showed that the reaction was zero order, as the iron content of water was low, the reaction was first order. the time needed for the cultivation of biological manganese removal was 60 70 days. the filter operated at the filtration rate of 8 10m / h, silica sand of effective size 0. 95 1. 25mm filled the filter to a depth of 1200mm

    試驗結果表明，成熟后濾砂表面濾膜的x射線衍射圖譜與mno _ x ? 5h _ 2o （ x = 1 . 86 ）的x射線衍射圖譜一樣，濾膜成熟后的結構在進水物質不發生變化的情況下不發生變化;合適的碳磷比對生物除錳有明顯的促進作用，試驗條件下的投磷量不會對出水造成二次污染;生物除錳需要亞鐵的參與，亞鐵的存在除了能夠促進微生物分泌胞外酶並刺激其活性外，還通過鐵離子的變價傳遞電子，催化錳離子的氧化反應，從而促進對二價錳的降解。
  2. In order to remedy the faults of the traditional pipe - leak detector based on the straight - correlation analysis method which has high demand for hardware and high price, the pipe - leak detector based on the polarity correlation algorithm with the cross - zero method is presented, the hardware design and the test is finished, the result only with the error from 1 % to 3 % is gained, and its feasibility is testifies

    針對採用直接相關法的傳統相關測漏儀對硬體要求高、價格較貴的缺點，將極性相關的過零演算法應用於相關測漏，並設計了硬體結構，進行了實驗模擬，在實驗室條件下，測量誤差約為1 % ~ 3 % ，驗證了其可行性。
  3. We reconstructed the phase space and calculated the nonlinear parameters such as correlation dimension, the largest lyapunov exponent, approximate entropy, and l - z complexity of the data. it can be conclud from the results that the reconstruction of heart beat rate signal is strange, its correlation dimension is between 5 to 7 and have the character of fractal dimension, its largest lyapunov exponent is larger than zero, its approximate entropy and l - z complexity are obviously differ from noise. we can draw a conclusion from all above : the heart beat rate signal is n ' t simple noise, it is high dimensional chaos obeys certain dynamical law

    我們還對信號進行了相空間重構，計算了信號的關聯維數、最大lyapunov指數、近似熵和復雜度這幾個非線性特徵量，我們發現，心率信號的吸引子是奇怪吸引子，關聯維數介於5到7之間，具有分維的特徵，其最大lyapunov指數大於0 ，其近似熵值和復雜度值明顯區別于噪聲，這說明心率信號不是隨機噪聲，它是服從確定性動力學規律的高維混沌信號。
  4. This dissertation proves that formation of entanglement is smaller than mutual information. as a by - product, this dissertation also proves that there does not exist this kind of quantum state whose nearest separable state is the product of its two reduced density matrices except the state whose classical correlation is zero

    證明了結構糾纏小於互信息，同時證明了對于任意的量子態（除了經典關聯為0的態） ，它的兩個約化密度矩陣的直積不可能為它的最近分離態。
  5. Ds signal is twice modulated with the rapid pseudorandom noise sequence and the carrier. so it appears cyclostationary. in the field of spectral correlation, ds signals appears its characteristic as fallows : for the amplitude of spectral correlation, the information of carrier frequency and pn code rate are contained on the spectrum frequency equal to zero sheet, and also the pn code rate is contained on the sheet of spectrum frequency equal to carrier frequency ; for the phase of spectral correlation, the information of carrier initial phase is contained on the sheet of cyclic frequency equal to double carrier frequency

    Ds信號是經過高速偽隨機序列和正弦載波二次調制的寬帶信號，因此具有周期平穩特性，它在譜相關域表現為:幅頻特性在譜頻率等於零截面切片上包含了載頻和偽碼速率信息特徵，在譜頻率等於載頻截面切片上包含了偽碼速率信息特徵;相頻特性在循環頻率等於兩倍載頻截面切片上包含了載波初相信息特徵。
  6. Results obtained demonstrate that, due to the existence of zero - correlation - zone ( zcz ) of the go sequences, near ideal performance can still be achieved even when high speed radio environment is encountered. in addition, obvious interference mitigation as well as significant performance improvement can still be observed when the relative shifts of spreading sequences exceed zcz

    研究表明，由於廣義正交序列零相關區（ zcz ）的存在，即使處于高速運動無線環境，仍然可以取得近似理想性能，即使序列偏移超出了零相關區，仍然對干擾有明顯的抑制作用，顯著提高系統性能。
  7. In this thesis, the zero correlation zone ( zcz ) or generalized orthogonal ( go ) sequences are applied to direct - sequence cdma ( ds - cdma ) systems, and the corresponding system performance are analysed. topics on the correlation property analysis of hadamard walsh ( wh ) sequences, go sequences, and loosely synchronous ( ls ) sequences are performed, and the system model and performance evaluation of single - cell and multi - cell synchronous cdma ( s - cdma ) systems employing go sequences, and the applications of go sequences in quasi - synchronous cdma ( qs - cdma ) systems are elaborated

    本文研究了零相關區（ zcz ）或廣義正交（ go ）序列在直接序列碼分多址（ ds - cdma ）系統中的應用並給出了系統性能分析結果，包括hadamardwalsh （ wh ）序列集、廣義正交序列集與鬆散同步（ ls ）序列集相關特性分析，採用廣義正交序列的單小區與多小區同步cdma （ s - cdma ）系統模型與性能分析，以及廣義正交序列在準同步cdma （ qs - cdma ）系統中的應用等問題。
  8. A new type of pressure coefficient cp is defined to lead to a linear correlation with radial locations, which will lead to a curve correlation with radial locations with conventional definition of cp. the correlations of cm, nuave and cp with rotational reynolds number have been got through the computation with rotational reynolds number from zero to 1. 0 108

    給出了扭矩系數cm 、平均換熱系數nu _ （ ave ）隨旋轉雷諾數變化的關系式，發現它們與沒有預旋時是完全不同的，當re _ = 0時， cm 、 nu _ （ ave ）不為零，而具有一個初值。
  9. The require of address code in project is that the sequence has acuity auto - correlation and the cross - correlation is near to zero

    由於工程上對地址碼的要求是必須具有尖銳的自相關函數，而互相關函數接近於零。
  10. Car following models of single lane traffic assume that there is a correlation between in a range of inter - vehicle spacing, from zero to about 100 to 125 meters and provides an explicit form for this coupling. the modeling assumes that each driver in a following vehicle is an active and predictable control element in the driver - vehicle - road system

    車輛跟馳理論是指一條車道的交通流中，車間距小於125米的車輛之間存在著一種可以定量描述的相互影響關系，后車的司機跟隨前車行進，憑借感知能力、判斷能力和控制能力，對前車一系列連續的刺激有規律地做出反應。
  11. After a long time evolution, the system finally reaches a stable state at which the magnetization and the equal time spin - pair correlation are periodic oscillating functions with the equal period as the external field. numerical simulation shows : when the amplitude of external filed is large, there exits a particular temperature at which the average magnetization and the average spin - pair correlation are almost unaltered with various field amplitude ( i. e. magnetic susceptibility is zero ), and the particular temperature depends on the number of the spin states, cutting down with q increasing

    由數值模擬得到：當外場幅度較大時，存在一個特殊的溫度點（我們稱之t ） ，在這個溫度點，系統的平均磁化強度和平均等時自旋對關聯隨外場幅度的變化幾乎保持不變（即磁化率為零） ，並且這個溫度的大小依賴于自旋態數目q的變化， q越大，這個溫度就越小；而當外場較小時，確信系統存在有限大小的臨界溫度
  12. Cdma has become the main technology of the third generation mobiletelecommunication. many users in cdma system are distinguished by differentspread sequences and have the same time chip and frequency unlike in theconventional tdma system or fdma system. but the practical spread sequences cannot reach the ideal condition, the correlation function equals zero, so that it will causethe multiple access interference ( mai ) when lots of people are communicating. multi - user detection ( mud ) makes joint detection on the received signals by makingfull use of the information of all users ’, which relaxes mai and increases the capacityof system

    Cdma技術已經成為第三代移動通信系統中的主流技術，它與傳統的fdma 、 tdma不同，在cdma系統中多個用戶均佔用同一時隙、同一頻隙，所不同的是選取的地址碼不同，而實際選用的地址碼間的互相關函數又不可能全部達到理想狀態的全為零，因而造成了多個用戶同時通信時，必然要產生多址干擾。
  13. If the correlation of fferent spread spectruin codes is not zero, ther would be multi - access interference. additionally, cdma conunwhcation system is a intefference - limited system, tha is to say that the interference directly influences the capabi1ity of dris system and the qos of the user in the system. in order to rid the nearfar problem and muti - access intehae, power control plays an impohan role

    若用戶間的互相關不為零，則會導致多址干擾的產生；另一方面，由於cdma系統是干擾受限的系統，即干擾程度直接影響到系統軟容量和系統內用戶服務質量的高低，為了有效地克服遠近效應和多址干擾的影響，採用一定的功率控制技術則顯得尤其重要。
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