查询词典 spectrum analysis

The testing mechanism of IR spectrum transmittance is studied and the testing method of IR spectrum transmittance is established.

研究了烟幕红外光谱透过率的测试机理，建立了烟幕红外光谱透过率的测试计算方法。

In this paper, total logistics amounts are chosen as evaluation index, and artificial time series are designed to solve the shortness of statistical data in Chinese logistics. Spectrum estimation theory depicts time characteristics in frequency domain thus has such benefit than time domain methods. This paper evaluates the period of Chinese logistics using spectrum estimation. Stationarity of artificial series is verified, parameter sensitivity of truncation point is analyzed, six periods with different delay window are compared, and significance of period evaluated is tested.

中国物流统计数据缺乏，客观上限制了对其周期规律的研究，本文选取社会物流总额作为测度指标，设计了一种人工序列，解决了统计数据过短问题；谱估计法从频域角度揭示客观事物的时间特性，在研究时间序列周期波动方面具有时域分析法所不具备的优势，作者采用谱估计法对中国物流发展周期进行测定，检验了指标序列平稳性，分析了截断点参数灵敏度，比较了6种不同滞后窗下周期值，并检验了所测得周期的显著性。

The high spectrum remote sensing further confirmed that spectrum reflectance in fenced area was higher than that in unfenced area, indicating that productivity in fenced area were better than that of unfenced area.

高光谱遥感进一步监测结果显示围栏内牧草光谱反射率比围栏外高，同样说明牧草长势及生产力围栏内要好于围栏外。

Besides, the polarized PL spectrum is able to reveal the fine structure much more pronounced than that in unpolarized spectrum.

此外在此偏振化的光激发萤光光谱中可以显现出更细微的光谱结构，这是在一般的光激发萤光光谱中所无法展现的。

The tidied wool fibers were characterized by scanning electron microscope,infrared spectrum and energy spectrum,then tested antibacterial,skin irritation,softness,washability performances.

通过对有机硅季铵盐在改性羊毛纤维上的抗菌柔软整理研究，用SEM、红外光谱及能谱对整理后的羊毛纤维进行分析检测，并对整理后的纤维织片进行了抑菌、皮肤刺激、柔软、耐洗等性能的测试。

As a result, the flame spectrum of the whole waveband and the image corresponding to every flame spectrum data were obtained in the experiments.

通过实验，最终获得目标火焰在全波段范围内的光谱数据，并得到每一帧对应的火焰图像，为全面进行火焰光谱和图像研究以及燃烧特性分析奠定了基础。

The variation of components in insulation is also analyzed by the technique of infrared spectrum and X-ray energy spectrum.

利用红外光谱分析技术、x射线能谱分析技术分析了老化过程中主绝缘各组分材料的变化情况。

In the field of visible photosensitive resin, the absorption spectrum, excited state, solvent polarity effect, fluorescence spectrum, fluorescence quenching, concentration effect, photo fading, reaction mechanism as well as photopolymerization kinetics of xanthene iodonium salts and cyanine dye-borate were discussed. It is found that under the radiation of visible light, intra-ion-pair electron transfer reactions occur in bis salt of fluorescein and unsymmetrical trimethine cyanines containing quinoline end group triphenyl-butylboron, and the fading rate is very high.

在可见光敏树脂部分，通过对呫吨染料碘鎓盐和菁染料-硼盐体系的吸收光谱性质、激发态性质、溶剂极性效应、荧光光谱、荧光猝灭、浓度效应、光褪色反应、光聚合动力学等的研究，结果发现：荧光黄双二苯基碘鎓盐体系和含喹啉环端基不对称三甲川菁染料-三苯基丁基硼盐体系在可见光作用下均发生离子对内电子转移反应，且光褪色反应速率很高。

The results showed that upon Xe lamp irradiation,N butyl 2 ethoxy thioacridone was transformed into corresponding acridone and the presence of the lattter was confirmed by UV visible absorbtion spectrum and mass spectrum.

结果表明：在Xe灯光照下，N 丁基 2 乙氧基硫代吖啶酮转变成了相应的吖啶酮，用紫外可见光谱和质谱证实了吖啶酮的存在；生成的吖啶酮可被二苯基碘盐猝灭，它们之间的荧光猝灭遵循电子转移的反应机理。

With the increasing lack of allocable spectrum and crowding of ISM (Industrial, Scientific and Medical) bands, the research and application of wireless sensor networks will face a major difficulty that acquire usable spectrum.

随着无线电授权频段的日益紧缺和ISM公用频段的日益拥挤，无线传感器网络的研究和应用不可避免地要解决获取频谱资源的难题。

The teacher likes the honeymouthed little girl very much.

老师很喜欢这个嘴甜的小姑娘。

Mr. Notker Bien's interests are traveling, spending quality time with the family and long-distance-running.

诺特卡·柏恩先生热爱旅游，长跑，以及和家人一起共度美好时光。