查询词典 spectrum analysis

Cognitive radio technology can improve the spectrum utilization greatly by sharing spectrum allocated to primary users opportunistically.

通过机会式地共享已分配的授权频谱，认知无线电技术可以极大地提高频谱的利用率，解决目前频谱资源日益遗乏的难题。

Using a series of analytic technology that included the color spectrum,the mass spectrum,the pyrolysis and the fluorescence,the evaluation method whether the rudimental oil was extracted has been established during the time of overfill water.

利用有机色谱、质谱、热解和荧光分析技术，建立了高含水期油层的残余油可采性评价方法。

The absorption spectrum center wavelength of dolomite is near 232 μm is shorter than 235 μm of limestone,and thus RBD7 and RBD8 can be employed effectively to identify dolomite and limestone,respectively. Felsic rocks show AlOH and Fe3+ absorption characteristics in the VNIRSWIR region,while the maficultramafic rocks show Fe2+ and Fe,MgOH absorption features,hence the use of different valence state of iron and secondary minerals can distinguish them:ASTER band2/band1 represent Fe3+ distribution,ASTER band2/band1 represent the Fe2+ distribution,RBD6 can estimate the AlOH mineral abundance. Psammitic/pelitic schist containing phengite,chlorite,stilpnomelane,as well as the weathered surface covered by clay minerals,exist characteristic absorption spectrum in the 221 μm(band 6),and has a high reflectance in 165 μm(band 4),while the blueschist/greenschist show high reflectance in the 221 μm(band 6),and it exit low reflectance in 165 μm(band 4),and blueschist/greenschist appear low ASTER band4/band6 ratio.

白云岩的CO2-3吸收谱带中心波长位于232〖KG*3〗μm，与灰岩的CO2-3 吸收谱带中心波长位置235 μm相比，具有向短波长方向移动的特点，据此可以利用RBD7、RBD8分别有效的识别白云岩和灰岩；长英质岩石显示AlOH和Fe3+ VNIRSWIR吸收特征，而基性超基性岩石显示Fe2+和Fe、MgOH特征，利用不同的铁价态和次要矿物可以区分它们：ASTER band2/band1代表了含Fe3+矿物分布信息、ASTER band5/band4代表了含Fe2+矿物分布信息、RBD6可以估计AlOH矿物的丰度；砂质/泥质片岩含较多的多硅白云母、绿泥石、黑硬绿泥石以及风化后表面覆盖的其它粘土矿物，在221 μm（band 6）存在有特征的吸收谱带，并且在165 μm（band 4）具有较高的反射率，而蓝片/绿片岩在221 μm（band 6）反射率较高，不具有明显特征吸收谱带，同时其在165 μm（band 4）反射率较低，因此蓝片/绿片岩ASTER band4/band6 比值低。

The polysaccharose of mycelium of Grifola umbellate (PPS1) and the polysaccha rose of sclerotium of Grifola umbellate (PPS2) both were extracted by hot water leaching way, which were purified dispoing by Sevage way, determined the polysac charose content by 3,5-dinitro-salicylate way, and comparablly analysed infrared spectrum by Fourier transforming infrared spectrophotometer,which suggest that two kinds of polysaccharose were the similar infrared spectrum.

本试验通过人工液体浅层培养方式成功培养出猪苓菌丝体；经热水浸提法分别提取猪苓菌丝体多糖(PPS1)和猪苓菌核多糖(PPS2)；用Sevage法进行纯化处理；用3，5-二硝基水杨酸法测定其糖含量；用傅里叶变换红外分光光度计对两种多糖进行红外光谱比对分析，结果表明两者红外光谱相似。

It developed for military affairs first in Occident .It utilizes the characteristic of NUV spectrum (240-280nm) that UV spectrum of object is much greater than that of solar radialization in the aerosphere. Double spectrums imaging system gets UV and visible images to identify the object and background. Image infusion is a essential step of succedent image processing.

它利用中紫外区的&日盲&(240—280nm的中紫外)特性，即目标发出的紫外线远远强于太阳的紫外辐射，通过双光谱图像检测系统观察和检测该波段的紫外目标信号与背景可见光图像，并利用图像配准与融合技术，把紫外光图像准确地定位于背景图像，形成合成图像达到检测目的。

Resuit:Spectra of the majority of products are diferent from the standard spectrum,but the improved method can get the spectra identical with the standard spectrum.

结果：大多数厂家的甲睾酮片按药典法预处理样品后绘制光谱图与标准光谱图存在差异，改进预处理方法后可得到与标准光谱图一致的光谱图。

This item studies multipurpose use of homomorphic filtering and modern sequential method which identifies the dynamic load spectrum and torque spectrum by slaking the filter effect of system performance.

本项目研究了综合利用同态滤波和现代时序方法通过消除系统特性的滤波效应来识别动态载荷谱和转矩谱。

By the simulation computation, the present work obtained the spectroradiometric function with temperature, wavelength and the air transmittance as the parameters, and got the characteristic of data from difference background radiation. The spectrum D-value function shows the energy of the spectrum in different situation.

采用AViiVA-M2型CCD相机、静态傅里叶干涉具、 1 m×1 m的铁板作为待测目标等做相关实验，分别在一天中不同时间、不同探测距离、不同背景的条件下，得到了各种情况下整个系统的探测极限位置。

Both spectrum and co-spectrum appear to follow Monin-Obukov similarity and Kolmogorov′s prediction for the inertial subrange.

珠穆朗玛峰是喜马拉雅山的主峰，耸立在我国与尼泊尔边境上，海拔高度为8844.43 m，是世界第一高峰。

In order to analyze the neutron spectrum effects on radiation damage, a computer code is designed to calculate recoils, fragments , transmutational products and their energy spectrum.

分析了中子与靶原子的相互作用过程，提出了结合中子输运和核反应耦合模型，采用由蒙特卡罗方法编写的RDSNC程序计算了聚变堆第一壁候选材料SiCf，/SiC在14 MeV和1 MeV中子辐照后的反冲核、碎片、嬗变产物和它们的能谱。

Continuously improve the production mechanism, to provide customers with better quality products and services.

不断的完善生产机制，给客户提供更优质的产品及服务。

B:Yes, he was the very prize-winner in the court tennis ten years ago?

是的，他是十年前的世界网球冠军。