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The analysis results showed that the rapid and accurate determination of alkene content in jet fuels can be achieved by using near infrared spectrum analysis.

分析结果表明，近红外光谱分析可实现对喷气燃料烯烃含量的快速准确测定。

In this paper, through a series of experiments, two series of quaternary-ammounium Gemini surfactants were synthesized, namely the pair alkylene double quaternary ammonium salt surfactant m-s-m·2Br and the pair the alkylene double quaternary ammonium salt surfactant -s-·2Br. We has carried on the attribute with the infrared spectrum to its structure, and to affected the factor which the synthesis pair the alkylene double quaternary ammonium salt surfactant responded to carry on the discussion. We has discovered the synthesis pair the ethylene double quaternary ammonium salt surfactant m-2-m·2Br optimum condition: The bromo alkane and a tetramethyl ethylene diamine mole of ratio is 3.0: 1.0, makes the solvent by the ethyl alcohol, 80℃ under responds for 48 hours in the backflow temperature; Synthesis pair alkylene double quaternary ammonium salt surfactant 12-S-12 ·2Br optimum condition: 12 tertiary amine and 1, 3- propylene dibromide (1, 4- two bromines butane) a mole of ratio is 2.2: 1.0, makes the solvent by the ethyl alcohol, responds for 48 hours in the constant temperature 80 ℃ under backflow.

本文通过一系列的实验，合成了两个系列的Gemini型表面活性剂，即双烷撑双季铵盐表面活性剂m-s-m·2Br和双烷撑双季铵盐表面活性剂-s-·2Br，用红外光谱对其结构进行了表征，并且对影响合成双烷撑双季铵盐表面活性剂反应的因素进行了讨论，找出了合成双乙撑双季铵盐表面活性剂m-2-m·2Br的最佳条件：溴代烷与四甲基乙二胺的摩尔比为3.0：1.0，以乙醇作溶剂，在回流温度80℃下反应48小时；合成双烷撑双季铵盐表面活性剂12-s-12·2Br的最佳条件：十二叔胺与1，3-二溴丙烷(1，4-二溴丁烷)摩尔比为2.2：1.0，以乙醇作溶剂，在恒温80℃下回流反应48小时。

I. Alkenylcarbenium ion formation from 4 Torr allyl alcohol on zeolite HZSM-5 pretreated at 773 K. The lowest spectrum was recorded immediately after exposure to the adsorbate.

字母i。 Alkenylcarbenium 4离子形成托丙烯醇在沸石分子筛，在5预处理 773 K的最低频谱立即记录在暴露于吸附。

The track structure of low electron, proton and alpha particle in water as a media has been calculated with Monte Carlo method. The spectrum of DNA damages has been simulated by the track structure model. Then the surviving fraction at different dose level is calculated by connecting track structure and phenomenological dynamic model.

在理论方面，对电子、质子和α粒子在水中的径迹结构进行了系统地研究与计算，还编制了我们自己的质子的蒙特卡罗模拟程序；用径迹结构模型计算出电离谱并与动力学模型相联系，计算出有实用价值的成活率。

The high-correctness C/O energy spectrum logging system features use of fast neutron in deuterium and tritium reaction along with alpha particles flying technique to log, and is composed of neutron counter tube accompanied by alpha particles test system, neutron shielder, gamma ray detector, fact electric timer and computer for data acquisition, processing and control.

本发明提供一种高准确度的碳／氧比能谱测井系统，该系统是将氘氚反应快中子伴随α粒子飞行时间技术用于碳／氧比能谱测井，包括具有伴随α粒子探测系统的中子管，中子屏蔽体，γ射线探测器，快电子学定时部件以及数据获取、处理和控制计算机。

Moreover, it is an effective and reliable method to analyze signals with spectrum on the basis of wavelet alternation.

此外，在小波变换的基础上对小波分解系数再进行常规谱分析是一种有效的故障诊断方法。

Used lens of infra-red spectrum, report to undertake token to polymer, inspected molecular print polymer with ultraviolet and prismatic photometry characteristic to the adsorption of aminopyrine.

利用红外光谱、电镜对聚合物进行了表征，用紫外分光光度法考察了分子印迹聚合物对氨基比林的吸附特性。

Cold analogue experiment of studying the characteristics of ceramic burner in hot-blast stove by energy spectrum analysis.

能谱分析法研究热风炉陶瓷燃烧器特性的冷模拟实验。

In chapter 5, we present the analytic spectrum and light curve of these synchrotron radiating electrons, applying a treatment more reansonable and stricter than methods in the literature and convenient for calculating those of synchrocurvature to reveal physical nature of the magnetic field formation and acceleration of particles in shock.

在第五章，我们给出了这些电子能谱的解析同步辐射谱和光变曲线。我们的处理方法比文献中的方法更合理且更严格。它也更方便我们下面利用同步曲率机制去计算余辉的辐射谱和光变曲线，以期揭示激波中磁场形成及粒子加速过程的物理内涵。

By analysis of frequency spectrum based on MATLAB platform, wavelet method in the application of cutting out a section of inputting earthquake wave was presented. In the process of pseudo dynamic test results, the method of non-dimensional representation and analytic representation of hysteretic curve was provided. The above two methods will help to compare dissipation energy capacity of this structure at the different acceleration peak value stage of pseudo dynamic test more precisely and comparably.

通过基于MATLAB的地震波频谱分析，说明了小波分析方法在拟动力试验中地震波截取方面的应用：在拟动力分段试验数据的处理方面，本文将试验结果的无纲量表示方法以及曲线的多项式拟合法引入滞回曲线的数据处理，这将有助于拟动力试验不同加速度峰值条件下，各阶段结构耗能能力的客观比较。

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％。