low-approach system 中文意思是什麼
low-approach system
解釋
低空進場系統-
Objective to investigate the effects of fluid shear stress on il - 8 gene in human umbilical vein endothelial cells ( huvecs ) and the roles of time course of low shear stress and intensity of fluid shear stress using lightcycler ? system ; to investigate the gene expression profiles in huvecs exposed on low shear stress ( 4. 20 dyne / cm2, 2 h ) and incubated by 17 p - estradiol ( 10 - 7 m ) + low shear stress ( 4. 20 dyne / cm2, 2 h ) using the cdna microarray approach. methods endothelial cells were isolated from human umbilical cord veins by collagenase treatment as described by jaffe and modified
目的探討人臍靜脈內皮細胞（ humanumbilicalveinendothelialcells ， huvecs ）在流體切應力作用下il - 8基因的誘導表達以及切應力的作用時間和作用強度對il - 8基因表達影響的變化規律；利用表達譜基因晶元技術研究內皮細胞在低切應力（ 4 . 20dyne cm ~ 2 ， 2h ）作用下其切應力相關基因的表達情況以及生理濃度（ 10 ~ （ - 7 ）的17 -雌二醇孵育內皮細胞48h ，再經同樣條件的切應力處理后對內皮細胞切應力相關基因表達的可能影響。 -
Neural network control is an important mode of intelligent control, and it is widely used in branches of control science, first, the architecture and the learning rule ( error back propagation algorithm ) of multiplayered neural network which is widely used in control system are presentedo especially, the paper refers to the architecture of diagonal recurrent neural network and its learning algorithm - - - - - recurrent prediction error algorithm because of its faster convergence with low computing costo next, before introducing the neural network control to the double close loop dc driver system, the controllers of current and velocity loop are designed using engineering design approach after analysis of the system, simulation models of the system are created
神經網路控制是智能控制的重要方式之一，它廣泛應用於自動控制學科各個領域。本文首先敘述了控制系統中常用的多層前饋網路結構及演算法（ bp演算法） ，特別提及了能夠較好描述系統動態性能的對角遞歸神經網路和在用遞推預報誤差演算法訓練drnn時取得了較快的收斂速度。其次，應用工程方法分析設計了tf - 1350糖分離機的電流、轉速雙閉環直流調速系統的控制器，作為引入神經網路控制的設計基礎，並建立了系統的模擬模型。 -
A resolution method in software is applied to calibrate zero point and full scale of the circuit. software approach to nonlinear correction for sensor and circuit is presented. therefore system error is eliminated, and measurement accuracy of temperature is improved. the signal of acidity electrode is detected by a differential amplifier circuit, which consists of operational amplifiers tlc2254 with high input impedance and low drift
採用橋路和單運放差動放大電路對溫度傳感器信號檢測放大，軟體校正溫度傳感器和測量電路的非線性，軟體校準測量電路的零點和滿度，消除測量電路的系統誤差，提高補償溫度的測量精度；採用高阻、低漂移運放tlc2254組成高阻差動放大電路用於酸度電極信號測量。 -
With the hierarchy model, the peculiarities and technical difficulties of the low frequency uwb - sar are analyzed, and the approach of system calibration is determined
利用該模型，分析了低頻uwb - sar校準的特點和技術難點，指出該系統校準的途徑。 -
By using the approach, a high - order linear discrete large - scale system can be decomposed into some low - order decoupling subsystems with unidirection
該方法可將高階線性離散大系統化為若干個具有單向解耦的低階子系統來研究。 -
By using the approach, a high - order linear time - varying discrete large - scale system is decomposed into some low - order decoupling subsystems with unidirection
用此方法將線性時變離散大系統化為若干個具有單方向解耦的低階子系統。 -
To solve the problem of filtering divergence in the case of low observability and large estimating error to the target ’ s original state in the ssbopls, this thesis presents a two - stage multiple mode extended kalman filtering ( ekf ) algorithm. at the beginning of filtering, system often has large estimating error. in order to efficiently avoid filtering divergence, the algorithm uses a mode - set which contains multiple modes to approach the real target state mode
在估計誤差比較大的濾波初始階段，採用多個模型組成的模型集合加權來逼近目標的真實狀態模型，可以有效地減小濾波的模型誤差，避免濾波的發散;當濾波達到穩態后，改為採用單模型濾波以節省計算量和系統存儲量。 -
Manufacturing high performance microwave modules in low cost approach is great significance to popularize and apply the complicated and costly electronic system
高性能、低成本的微波組件製造技術對復雜昂貴的電子系統的普及應用具有重要意義。
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