长信号

Operation of discrete convolution and discrete correlation will spend too much time to process a signal in time.

时域离散卷积和相关运算一般耗时太长，对信号进行处理的实时性较差。

For cloning antifreeze protein gene from a desert darkling beetle Microdera punctipenis dzunarica in Xinjiang, the primers were designed according to the core sequence of AFP gene deposited in GenBank, and the cDNA fragment about 294 bp named as MpAFP5 was amplified with the RT-PCR and 3'-RACE technique. Sequence analysis revealed that the cloned cDNA fragment named as MpAFP5 coded the mature peptide of AFP.

根据GenBank中已发表的昆虫抗冻蛋白基因的保守序列设计引物，利用RT-PCR技术结合3'-RACE扩增的方法，从新疆荒漠昆虫准噶尔小胸鳖甲Microdera punctipenis dzunarica中获得了长约294 bp不含信号肽的抗冻蛋白cDNA片段，命名为MpAFP5，其全长序列为363 bp(GenBank注册号为：AY821792)。

Therefore we must listen long enough to detect a strong, easily distinguishable part of the signal.

因此，我们必须倾听足够长的时间，以便探测该信号的强有力的、易于分辨的那一部分。

On the basis of theoretical analysis of target diffusion in range-velocity resolution cell, the array signal covariance matrix and noise covariance matrix are estimated from some different cells respectively. The processing results from experimental data in onshore HFSWR with Minimum Variance Distortionless Respose, MUltiple SIgnal Classification and pre-whiten MUSIC respectively show that super-resolution methods can provide better resolution than CBF.

鉴于 HFSWR 工作波长较长、常规波束形成角分辨力较差的缺点，基于目标在距离—多普勒平面分布的理论分析，本文利用相邻距离、多普勒频率单元信号估计阵列协方差阵，并分别利用 MVDR 、 MUSIC 、预白化 MUSIC 方法进行超分辩处理，实测的合作飞机目标数据处理结果表明超分辩方法能明显提高阵列角度分辨力。

Surrounding the core of the hemorrhage is very high signal consistent with the long T2 of water in edematous tissue.

出血中心的周围是一圈高信号区，与水肿组织中的水在长T2中的影像是一致的。

Therefor, a device, which can measure signals of cardiac electrophysiology and respiration for 24 hours, is quite needed.

因此，有必要开发一款便携式的可以长时间记录心电与呼吸信号的仪器。

The emission spectrum, output energy and pulse width were presented.

测量了发射光谱及不同腔长、不同染料片小信号透射率情况下的输出能量、脉冲宽度等。

Different from the case of only one coupled periodic oscillator, in two oscillators one or the other harmonic oscillator will entrain alternately (or they will entrain exclusively).

典型的同步系统，如驱动-响应同步，设它们各自混沌信号分别为x1，x2，经过足够长的暂态后如有x1=x2，则可以认为系统达到完全

Futuristic Factoid: The last remaining primates on Earth have long tails, which they use to signal their roops.

特征：唯一存活下来的灵长类，他们有很长的尾巴，用来给他们的同伴发信号。

With the an programming design of hardware and software, the problem of false regulation caused by dum-my signal is solved, and the automatic stabilizing of arc length during welding process in the designed range effectively is guarranteed.

经过硬件和软件的抗干扰设计，解决了因伪信号而引起的误纠差调整问题，有效地保证了弧长在焊接过程中自动稳定在所设定的范围内。

Breath, muscle contraction of the buttocks; arch body, as far as possible to hold his head, right leg straight towards the ceiling (peg-leg knee in order to avoid muscle tension).

呼气，收缩臀部肌肉；拱起身体，尽量抬起头来，右腿伸直朝向天花板（膝微屈，以避免肌肉紧张）。

The cost of moving grain food products was unchanged from May, but year over year are up 8%.

粮食产品的运输费用与5月份相比没有变化，但却比去年同期高8％。