查询词典 random signal

The results show that all the hmgr genes from pigs, cattle and chickens are astable enzyme proteins with the same gene sequence characteristics and encoding protein and physical and chemical properties; all the amino acid sequences have a high degree of homology, containing two conservative HMG-CoA binding motifs and two NADPH binding motifs; all the amino acid sequences, containing signal peptide, are secreted proteins; they are all hydrophobic transmembrane proteins with five transmembrane domains; random coil and α-helix are the main structural elements in the HMGR polypeptide chain; all the predictions of three-dimensional structure are V- shaped; there are more closer evolution relationship between the HMGR gene from pigs and cattle.

结果表明：猪、牛和鸡HMGR基因序列特点及编码蛋白质理化性质基本相同，均属不稳定类酶蛋白；保守结构域氨基酸序列具有高度的同源性，均含有保守的2个β-羟基-β-甲基戊二酸单酰辅酶A结合基序和2个还原性烟酰胺腺嘌呤二核苷酸结合基序；均有信号肽，属分泌型蛋白质；属于跨膜的疏水性蛋白，均有5个跨膜结构域；无规则卷曲和α-螺旋是HMGR多肽链中的主要结构元件；三维结构预测都呈"V"字形；猪和牛HMGR基因的进化关系最近。

Signal processing approach presented in this paper based on neural network algorithm (spectral analysis, Random noise filtering) does not involve the complex multiplication and addition operations. Its computing accuracy is high. It is particularly suitable for the implementation of software and hardware based on DSP chip.

所提出的基于神经网络算法的信号处理方法(频谱分析、随机噪声滤波)不涉及复数的乘法运算和复数的加法运算，计算精度高，特别适合基于DSP芯片的软、硬件实现。

To meet the needs of detection of space faint objects for a telescope with large aperture and short focal,a binding drawtube telescope scheme to detect space object is presented to overcome the shortcomings that focal length grows and field of view shrinks with the increasing of aperture size in traditional telescope for space detection.The software methods are used to stack collected images to restrain background random noises and to improve image Signal to Noise Ratio and the detecting ability of the whole system.

为了满足空间暗弱目标探测对大口径、短焦距望远镜系统的要求，克服普通望远镜随着口径的增加焦距变长、视场变小的不足，提出了将多镜筒捆绑在一起对同一空域进行观测，通过软件的方式对采集的图像进行叠加来抑制背景随机噪声、提高图像的信噪比和系统的整体探测能力的设想。

Firstly, the descriptions of Instantaneous Polarization Projection Sequences of signal and noise are presented and statistics of generalized distance between random EM wave and the anticipant signa are derived.

首先给出了目标散射信号和随机极化波的瞬态极化投影序列表征方法，导出了随机极化波的IPPS到期望点广义距离的统计特性。

The protein encoded by this sequence was deduced to be consisted with 213 amino acids, signal peptide sequence from 1 to 17 position, and transmembrane regions from 171 to 190 position, whose grand average of hydropathicity is computed to be 0.031, secondary structure is composed by alpha helix (57.28%), extended strand (6.57%) and random coil (36.15%), subcellular localization was cytoplasmic by CELLO v.2.5. There are some function sites predicted by PROSCAN software, such as one N-glycosylation site (151-154aa), one protein kinase C phosphorylation site (193-195aa), two casein kinase II phosphorylation sites (155-158aa and 173-176aa), and one N-myristoylation site (97-102aa).

推测编码蛋白由213个氨基酸组成，信号肽序列位于1-17aa，亲水性指数为0.031，跨膜区域位于171-190aa，二级结构由-螺旋（57.28%）、延伸主链（6.57%）和无规卷曲（36.15%）组成；亚细胞定位于细胞质，含有N-糖基化位点1个(151-154aa)，蛋白激酶C磷酸化位点1个(193-195aa)，酪蛋白激酶Ⅱ磷酸化位点2个(155-158aa and 173-176aa)，N端酰基化位点1个(97-102aa)。

It's far too powerful and random a signal for them to be using it for a transformative effect of their own, and it's too scattered to be something of a hyped-up Mechaziner.

它遥远地太有力的和随意为他们的信号使用它作为他们自己的有变形能力的效果，而且它是太离散而无法是多少有点像一刺激-提高 Mechaziner。

3A hardware platform design scheme of digital random noise signal generator is proposed, and it is successfully implemented by using the devices of FPGA and mass capacity memory and so on.

4首次论证并仿真实现了随机噪声环形SAR。环形SAR可以提供被照射区域的全视角(360度)图像，可以获得更多更精确的信息。

Having analysed notonly the frequency characteristics of signal and random noise but also influence ofnoise upon filter under different signal/noise ratios, authors studied noise elimina-tion using inversion in wavelet trans form domain and then advance frequency- divi-sional inversive noi.

本文通过分析信号与随机噪声的频率犄性及在不同信噪比情况下噪声对滤波器的影响，研究了小波变换域中的庆演去噪情况，提出分频反演去噪方法。

Pseudo-random multi-frequency signal is invented and named by academician He Jishan. The bandwidth of PRMF signal is controllable, it's energy concentrates on several frequencies, which are equally spaced on log scale coordinates.

何继善院士发明和命名的伪随机多频信号，由于其带宽可控，能量主要集中在数个在对数坐标上呈等间距分布的频率上，是电法勘探的理想场源。

Results Group C had the symptoms such as reduced activity, acceded, indulge in lying and weight loss after 3 weeks of immune injection, 14 out of 16 SD rats in Group B had the same symptoms as Group C after 4～5 weeks of immune injection, the serum enzymes in model groups increased significantly compared with those of the control group, model group C was much higher than model group B; the duration shorted, amplitude decreased, multiphase wave increased in electromyogram of model groups; MRI examination revealed samples from model group B and C had one positive case each, which presented T1MI isodensity or hypodensity signal, T2MI and STIR serial hyperdensity signal, revealing muscle inflammation; all rats'skeletal muscle from model group C and 11 out of model group B had pathological changes, which exhibited striated muscle focal fiber degeneration, necrotized and inflammatory cell infiltration, interstitial vessel wall thickening, random cardiac muscle samples had 3 positive changes, which had similar changes to skeletal muscle, there was 1 positive change from lung sample.

结果：模型C组于免疫注射第3周左右开始出现活动减少，倦怠嗜卧，食欲体重下降等表现，模型B组有14只SD大鼠于免疫注射第4～5周出现上述症状，较C组为轻；模型组肌酶谱中，肌酸激酶、乳酸脱氢酶、谷草转氨酶与对照组比较明显升高，模型C组较模型B组升高更显著；模型组肌电图时限缩短，波幅降低，多相波增多；磁共振检查模型B组和C组选送标本中各有一例有阳性改变，表现为T1MI等或稍低信号，T2MI及STIR序列为高信号，提示肌肉炎症水肿改变；模型B组有11只，模型C组全部大鼠骨骼肌出现病理改变，表现为横纹肌局灶性分布的肌纤维变性炎细胞浸润，间质小血管壁增厚、扩张，随机选送的心肌标本中有3例有阳性改变，表现与骨骼肌相仿，选送的肺标本中有1例有阳性改变，表现为蛋白渗出，炎症细胞浸润和小血管改变。

We have no common name for a mime of Sophron or Xenarchus and a Socratic Conversation; and we should still be without one even if the imitation in the two instances were in trimeters or elegiacs or some other kind of verse--though it is the way with people to tack on 'poet' to the name of a metre, and talk of elegiac-poets and epic-poets, thinking that they call them poets not by reason of the imitative nature of their work, but indiscriminately by reason of the metre they write in.

索夫农 、森那库斯和苏格拉底式的对话采用的模仿没有一个公共的名称；三音步诗、挽歌体或其他类型的诗的模仿也没有——人们把&诗人&这一名词和格律名称结合到一起，称之为挽歌体诗人或者史诗诗人，他们被称为诗人，似乎只是因为遵守格律写作，而非他们作品的模仿本质。

The relationship between communicative competence and grammar teaching should be that of the ends and the means.

交际能力和语法的关系应该是目标与途径的关系。