查询词典 emission spectrum

The present invention discloses a variable bit spectrum spreading method and a corresponding novel dispreading method based on BP iteration interpretation method.

本发明公开了一种提供一种变码扩频方法、以及提供相应的基于BP迭代译码方法的新解扩方法。

For a given dispreading distance,the widths of the two spectrum regions increase until overlay when second-order dispersion approaches zero.

对给定的传输距离，随着光纤向零色散附近靠近，两个频谱区谱宽增加直到相互重叠。

The communication technology used in GPS is a direct sequence spread spectrum structure. Using C/A Gold codes, it can cope with wideband noise (such as thermal noise and channel noise) or low power narrowband interference by its processing gain. But DS-SS can not reject high power narrowband interference completely. So we need an anti-jamming filter to reject the narrowband interference by using adaptive filters prior to dispreading.

它是利用直接展频的一种架构，因此，此系统能藉由C/A码的展频处理增益，来对付ㄧ些宽频的干扰或是低能量的窄频干扰，但是它无法应付高能量的窄频干扰，因此我们需要一个抗干扰滤波器在解展频之前来先将干扰去除。

Also, the slight dissimilarities between the simulated spectrum and the experimental one are discussed.

同时还对模拟光谱与实验结果间的细微差别做了讨论。

Also,the slight dissimilarities between the simulated spectrum and the experimental one were discussed.

同时还对模拟光谱与实验结果间的细微差别做了讨论。

Every color of the spectrum emanated from its being.

从那里流散出光的每一种颜色。

The CoFe2O4/TiO2 magnetic nano-photocatalysts has fairly good magnetic property. The X-ray diffraction, transmission electron microscopy and ultraviolet-visible technique were used to analyze the phase structure, size and spectrum response scope of the samples. The XRD indicated the anatase TiO2 was formed when TCF modified by plasma. The size of CoFe2O4 particles was about 20 nm. The diameter of CoFe2O4/TiO2 particles is in the range of 30~40 nm. So the shell of TiO2 enwraps closely around the core and the thickness is in the range of 10~20 nm.

运用VSM技术对样品磁性能进行研究，结果表明：等离子体修饰后的复合材料仍具有较高的饱和磁化强度，可在外加磁场作用下实现催化剂在水中的分离与回收；样品的XRD、TEM和UV-Vis分析测试结果表明：等离子体修饰后的复合材料有锐钛矿型TiO2存在；TEM谱图显示磁核CoFe2O4的平均粒径约为20 nm，TCF复合粒子的粒径约为30~40 nm，TiO2包覆层的厚度为10~20 nm。

Based on these results the mathematic model and spectrum equilibrating filter frame were designed.

建立视等厚层状吸收介质模型，计算地层吸收衰减特性，以此为依据给出了频谱均衡滤波器的数学模型和设计框图。

Seismic exploration ; data acquisition ; high resolution ; frequency spectrum ; wave filter ; absorption ; attenuation ; equilibrating filter

地震勘探；数据采集；高分辨率；频谱；滤波器；吸收；衰减；均衡滤波器

AIM: To investigate whether the Acrysof Natural has the protective function for retina from blue light in morphology.METHODS: Fresh porcine eye cups were formed in vitro. Blue light beam between 420-450nm spectrum eradiated the porcine retina and cultured RPE cells in 30J/cm2 and 40J/cm2, respectively.

目的：在造成急性视网膜光损伤的光照条件下，通过不同人工晶状体下比较视网膜组织及超微结构的变化，以观察Acrysof№tural对视网膜的保护作用。

Finally, the Knight strung a line between two of the monoliths and tied the horses up there.

最后，骑士们在两颗巨石之间拉了一条绳子，将他们的座骑绑在上面。

T7zN/hyS0 The island lies south by east from here.

那个岛位于此地的正南偏东方向。