two-trace method 中文意思是什麼
two-trace method
解釋
雙跡法-
Digesting with microwave, and a faas method for the determination of trace elements ca, mg, mn, zn, fe in two kinds of sweet averrhoa carambola l. was described
摘要採用微波消解，火焰原子吸收分光光度計對兩個甜楊桃品種進行了微量元素的測定。 -
Also, with the fast method for computing the, trace of the elements in the finite field, two blind signature schemes based on extended xtr system are presented, the security is equivalent to solving discrete logarithm problem of extended xtr group while the datum is only as 1 / 3 as that of the previous schemes
和別的方案相比，該方案在匿名范圍選取上具有靈活性，在身份追蹤上具有限制性。 （ 4 ）在xtr體制下，分別構造了一個環簽名、盲簽名和群盲簽名演算法。 -
Firstly in this part, computer simulation methodology based on the baecher model for generating network of discrete fractures was presented, which includes the follow details : probability distributions of fracture density, orientation, trace length, size, and aperture and estimation of their statistical parameters ; stochastic models of fracture network ; monte - carlo ' s simulation method ; numerical simulation procedure and technicality. then, boundary element method was used to calculate flow through the generated fractured network. assuming single fracture as a two - dimension inexpressible isotropic porous media, boundary element method equations for flow in single fracture and then in fracture network were derived using the weighted residual method
給出了離散裂隙網路模型所依據的基本假定；發展了基於baecher模型的離散裂隙網路計算機隨機生成技術：詳細地推導了單裂隙滲流和多裂隙相交網路滲流的邊界單元法公式，發展了離散裂隙網路中穩態滲流的邊界元數值技術，並且討論了相關的具體數值技術細節，如角點的處理方法，單元的自動剖分等：描述了混合邊界元?管流模擬方法及其數值實現；研究了裂隙網路的簡化方法，並針對裂隙網路邊界元法的特點提出了一種改進的分塊三角分解法。 -
Terrain slope information can be drawn from polarimetric synthetic aperture radar ( sar ) two - dimensional image, so that three - dimensional image can be generated. it differs from two - pass or repeated trace insar that uses interference phase method to obtain topography height. the p - sar three - dimensional image technology uses the stokes matrix formed by two - dimensional images resolution cells, then applying polarimetric synthesize to stokes matrix can produce polarization signature of the scatter cross - section a - (, x ) for any ( ellipticity ) and ( orientation ) polarization state
這種方法不同於重復軌道和雙通道insar系統，不是利用干涉法提取高度信息，而是利用極化sar二維圖像各分辨單元的stokes矩陣，通過極化綜合估計每個分辨單元的共極化散射特性和交叉極化散射特性（極化指紋） ，以及共極化散射特性最大值時對應的極化橢圓度x利極化橢圓方向角，求解地形的高度輪廓。 -
The vd is composed of four functional units : 1 ) the branch metrics unit ( bmu ) ; 2 ) the add - compare - select unit ( acs ) ; 3 ) the path metrics unit ( pmu ) ; 4 ) the survivor memory unit ( smu ) ; regarding the power dissipation of the viterbi decoder, the smu is the hottest spot in the viterbi decoder due to the frequent memory accesses. there are two traditional techniques for the realization of survivor memory unit in viterbi decoder - - register exchange ( re ) and trace back ( tb ) method
這是當前開展低功耗邏輯優化的重要方面，也是本課題採用的方法。 viterbi譯碼器主要由四個功能單元組成:分支度量單元（ bmu ） ，加比選單元（ acs ） ，路徑度量存儲單元（ pmu ） ，倖存路徑存儲和輸出單元（ smu ） 。本文所做的viterbi譯碼器設計採用模塊化的設計方法，先對各個功能單元進行優化設計，然後將各個功能單元組合在一起，形成最終的譯碼器。 -
We adopt two methods to simulate the trace of ray. 1. method of monte carlo modeling
使用的方法有兩個: 1 .蒙特卡羅模擬方法。
分享友人