1.The popular TDE algorithms mainly include the classical generalized cross correlation(GCC),the adaptive least mean square(LMS),the subspace based eigenvalue decomposition(EVD)and the acoustic transfer functions ratio(ATF-s ratio) methods,etc.
现有的TDE算法主要包括经典的广义互相关(GCC)方法、自适应最小均方(LMS)方法、基于子空间的特征值分解(EVD)方法和基于传递函数比(ATF-s ratio)的方法等。
2.Remarkably, gene BC023882 expressed high level in the brain only embryo and postnatal nonage, which function is unclear. Relative gene expression ratio (Cy5/Cy3) was 7.6038 on P0 day, much higher than the standard of screening differentially expressed gene(ratio>2.0000), which suggested gene BC023882 may play an important role in central nerve system(CNS) of mouse development.
其中一个功能未知的过度表达基因BC023882引人注目,它在胚胎发育和生后早期小鼠的脑组织存在高表达,其中P0 d时相点Cy5/Cy3比值(Ratio值)为7.6038,远远高于2.0000的基因表达差异筛选标准。 提示基因BC023882可能在小鼠早期胚胎中枢神经系统的发育过程中起到重要作用。
3.The followings are the main contents and innovations of this article. (1) To solve the problems caused by the calculation of average queue length in RED, AQMS_PLR(Active Queue Management Scheme based on Packet-Loss -Ratio) is proposed by useing the packet loss ratio of the network to calculate the arriving packet. And the drop probability are adaptively adjusted.
本文研究主要内容以及创新点如下:(1)针对RED(Round Early Detection)算法依赖于平均队列长度来计算丢弃概率所引起的一些问题,本文提出了用网络丢包率来计算到达分组丢弃概率的主动队列管理策略——AQMS_PLR(AQM scheme based on Packet-loss-ratio),并且在此基础上根据拥塞状况在短时间上自适应调节丢弃概率。
4.The optical characteristics characteristics of the LC SLM were measured and analyzed theoretically. The PV (Peak Valley) value of 0.07049λ (λ=0.6328 μm) after correction on the area of 1 cm~2 was obtained with our phase-only LC SLM. And Strehl ratio of 0.989 in our experiment indicates the approximate upper limit of the ability of LC SLM to correct a aberrated wavefront when it is used in adaptive optical system.
对畸变波前进行了调制,在1cm2的校正面积上,调制后的准确度PV(peak to valley)值接近λ/15(λ=0.6328μm),RMS(Root MeansSquare)可达到λ/100,斯特列尔比SR(Strehl Ratio)达到0.989.改变了传统的扭曲向列液晶器件难于进行纯相位调制和得到高准确度调制的缺点,达到了理想的效果.
5.Since Wald(1947) proposed method of Sequential Probability Ratio Test (SPRT), SPRT has become an important tool for solving hypothesis test problems.
自Wald(1947) 提出序贯概率比检验(Sequential Probability Ratio Test,以下简称“SPRT”)方法以来,序贯方法逐渐成为解决假设检验问题的重要工具.
6.Experimental results show that the proposed algorithm outperforms AT-3DSPIHT (asymmetric transform 3D set partitioning in hierarchical trees) and 3DSPECK by 0.4 dB and 1.4dB on the average PSNR (peak signal to noise ratio) respectively. Compared with popular zerotree approaches, AT-3DSPECK is faster in coding speed.
实验测试表明:AT-3DSPECK算法的平均PSNR(peak signal to noise ratio)分别比AT-3DSPIHT(asymmetric transform 3D set partitioning in hierarchical trees)和3DSPECK算法高0.4dB和1.4dB.此外,AT-3DSPECK还具有比零树算法更快的编码速度.
7.The result of cDNA microarray assay showed that after treatment with FHR(1000μg/ml) for 24 h , the transcription of Cyclin B1 and cyclin-dependent kinase 1(CDK1) were down-regulated, ratio value were 0.465 and 0.380 respectively.
由cDNA表达谱芯片的结果分析可得,与对照组相比,FHR(1000μg/ml)作用24h后细胞周期蛋白Cyclin B1和CDK1的转录受到抑制,Ratio值分别为0.465和0.380。
8.Two microsatellite DNA were selected as genetic markers for screening genomic DNA by using PCR, and computer software Map Manager QTX20 was used for linkages analysis. Results of mapping showed that two QTLs were found on chromosome 18. One QTL was located between D18Mit123 and D18Mit49, likelihood ratio statistics (LRS) reached 25.1 and percent of the total variance explanation (variation %) was 26%.
结果:通过连锁不平衡制图(mapping)软件Map Manager QTX20分析,发现分布于18号染色体上2个高连锁值的QTL,其中一个QTL位于D18Mit123与D18Mit49之间,似然比(likelihood ratio statistics,LRS)达到25.1,变异解释率为26%;
9.Channel estimation is one of the key techniques for OFDM systems. Compared with the differential demodulationn, coherent demodulation with accurate channel information can achieve 3-4 dB gain in signal-to-noise ratio (SNR).
信道估计是OFDM系统中的关键技术之一,利用信道信息的相干解调系统与不利用信道信息的差分解调系统相比,在信噪比(signal-to-noise ratio,SNR)上可以有3 dB以上的性能提高。
10.Blood pressure (BP), heart rate (HR), body mass index (BMI) and waist/hip ratio (WHR) were measured.
测量血压、心率、体质量指数(body mass index, BMI)、腰臀比(waist／hip ratio, WHR)等。
