查询词典 characteristic spectrum

In view of the the difficulty of mixture gas's characteristic absorption spectrum line overlapped, a novel seriatim mixture gas recognition method based on Support Vector Machine two classes classification and recognition model was presented.

针对混合气体种类光谱识别中组分气体特征谱线重叠严重的问题，将支持向量机用于混合气体种类光谱识别中，提出了一种基于支持向量机二值分类识别模型的逐一混合气体种类识别方法。

The characteristic absorption peaks of the infrared spectrum were assigned to different kinds of bonds in the compound.

对其振动分析，指认了化合物不同种类键的振动红外特征吸收峰。

Secondly, the statistical characteristic and spectrum characteristic of chaotic signals are lucubrated.

深入研究了混沌信号的统计特性和频谱特性。

More than 583keV numerical simulation of the characteristic peaks and measured the spectrum characteristic peak values similar error at 20%.

高于583keV的特征峰模拟数值与实测谱线的特征峰数值相近，误差在20%以内。

In this paper,the Raman spectrum were used to study sapphire,dichroite,aquamarinl,topaz and kyanite,it is found that the characteristic Raman translocations of sapphire which are caused by Al-O vibration are 413cm-1,640cm-1 and 668cm-1,the characteristic Raman translocations of dichroite which are caused by Si-O vibration are 550cm-1,662cm-1,964cm-1and 1176cm-1,the characteris.

本文通过对蓝宝石、堇青石、蓝色托帕石、海蓝宝石和蓝晶石的拉曼光谱进行测试与研究，得到蓝宝石具有由Al-O振动引起的特征拉曼位移413cm-1，640cm-1和668cm-1；堇青石具有由Si-O振动引起的特征拉曼位移550cm-1，662cm-1，964cm-1和1176cm-1；海蓝宝石具有由Si-O振动引起的特征拉曼位移678cm-1，1064cm-1，1232cm-1；蓝色托帕石具有由Si-O振动引起的特征拉曼位移844cm-1和924cm-1；蓝晶石具有由Si-O引起的特征拉曼位移933cm-1和1133cm-1。

FT-IR spectrum showed that the new bands at 3000cm-1~2700cm-1 and 1600cm-1~1400cm-1 were assigned to the C-H telescopic vibration and the framework vibration feature of imidazole ring, besides the characteristic bands of BMMs appeared in all samples, however, all of characteristic bands for imidazolium ionic liquid disappeared in the samples when calcined at 550oC, which implied that the structure of imidazolium ionic liquid has been destroyed during calcinations.

FT-IR分析测试中3000cm-1~2700cm-1及1600cm-1~1400cm-1波数范围内的谱带被认为是饱和的C-H伸缩振动和芳环骨架振动，说明离子液体的存在，这些峰只在萃取样品中出现，可见键连的离子液体的结构在焙烧过程中被破坏。

Hyperspectral remote sensing data has the characteristic of combining both image data and spectral data into one data set, each pixel of a hyperspectral image an entire spectrum (consisting of numerous contiguous, narrow spectral bands) is present. Compared with conventional multi-spectral remote sensing data, hyperspectral remote sensing data can be more useful for the identification and classification of surface Materials. In this paper, the author classified the coastal area using hyperspectral remote sensing data, and further more, succeeded in extraction of sand beach surface information related to bearing capacity characteristic.

高光谱遥感数据具有图像—光谱合一的特点，与传统的多光谱遥感数据相比，能够更好的分类与识别各类地物，本文主要利用高光谱遥感数据，实现海岸带分类，并且在此基础上实现沙滩表面承载特性信息的提取，主要内容分为以下三个部分：第一部分概要介绍了高光谱遥感技术。

Noise can be reduced by about 2 dB by using oil-resistant rubber isolator to reduce solid-borne sound transmission; the setting-up of semienclosed noise barriers can not only reduce the work region's noise of workshop by 13 dB, but also adapt to the gas's characteristic involved with H2S, CO, and other poisonous components without supplied mandatory ventilation; locating the noise absorbers on the walls and ceiling of workshop can reduce noise by 8 dB; the exhaust silencer's elimination volume can reach above 30 dB which is designed in accordance with the exhaust noise spectrum characteristic of gas-combustion generator. By the combination of these measures, the noise of the gas- combustion generator will be under effective control, so that the gas power plant's noise pollution problems can be resolved.

通过选用耐油性好的橡胶隔振器减少固体传声，可降低噪声约2 dB；设置半封闭式机组隔声屏障可降低生产车间工作区域内的噪声达13 dB，并且适合瓦斯发电气源中含有H2S、CO等有毒有害气体的特点，不需增加强制通风措施；在生产车间四周墙壁和顶棚上敷设吸声体，最大可降低空间噪声8 dB；根据瓦斯发电机排烟噪声频谱特性设计的阻抗复合式消音器的消音量可以达到30 dB以上。

And the polarized characteristic and spectrum characteristic and impulse width of YAG laser were anatomized by designing experiment in ourself.

并通过自行设计的实验对YAG激光的偏振特性、光谱特性和脉冲宽度进行了论证和剖析。

The characteristic property applying the matter absorption spectrum , thing optics characteristic property having studied crystal is purple under different condition and the purple ion that anionic surfactants twelve alkyls mahogany acid sodium forms association.

应用物质的吸收光谱特性，研究了不同的条件下结晶紫与阴离子表面活性剂十二烷基磺酸钠形成的紫色离子缔合物的光学特性。

Since historical times,England ,where the early inhabitants were Celts, has been conquered three times .

从有历史以来，英国，在此地早期居住的是凯尔特人，已经被征服了三次。

Bluetooth OBEX File Transfer Enables the sending and receiving of files on your phone via Bluetooth.

蓝牙OBEX文件移动允许经过蓝牙传送和接受文件。。。。