粒子

Using mordern physical chemistry techniques (such as XRD、 TG-DTA、 IR、 XPS and 〓Xe-NMR)、 chemical adsorption techniques (NH〓-TPD、 H〓-TPD、 TPO、 TPR etc.) and pulse flow microreaction of n-hexane、 methylcyclopentene and n-hexane containing 0.2ppm thiophene, we studied mainly the following three points:(1). the changes occured during the calcination pretreatment of Pt ammine complex supported on β and L zeolites;(2). the effect of structure and acidity-basicity of zeolite on the dispersion and electron state of Pt particles; and (3). the influence of second metal component on the reactivity of nhexane aromatization and sulphur-resistance of Pt/L zeolite catalyst. Several interesting and valuable results are obtained and summerized as follows

本论文运用各种近代物理表征方法(XRD、BET、TG-DTA、IR、XPS和〓Xe-NMR)、化学吸附技术(NH〓-TPD、H〓-TPD、TPO、TPR等)和正己烷、甲基环戊烷及含噻吩正己烷的脉冲微反等方法，着重研究了(1)载Pt的β和L沸石在分解预处理过程中发生的变化；(2)沸石载体结构及酸碱性对Pt粒子分散及电子状态的影响；(3)第二金属组份对载Pt沸石催化剂上正己烷芳构化及抗硫性能的影响等，得到了某些有意义的结果。

The effect of concentration of TEOS and ammonia on the composite particles structure was also investigated.

研究了TEOS、氨水的浓度对核－壳粒子结构的影响。

Drinking this kind tea also has a function of calm. Besides, asparagus contains rutin, amrita, biochem, arginine etc, which are also useful to prevent some diseases such as hypertension and cerebral haemorrhage. This product, which is sweet and clear, keeps the nutrition of fresh asparagus. It is a healthy drink of the 21st Century with its clear function of preventing cancer.

长期饮用芦笋茶可起到清神醒脑的作用，除此之外，它还包含了芦丁、甘露、生物化学粒子和静氨酸等等，这些成分同样可以有效的预防多种疾病，例如：高血压和脑溢血等；它口感甘甜清爽，保留了新鲜芦笋的营养价值，是可以有效预防癌症的二十一世纪的健康饮料。

On these basic, we explore the single-particle resonant states by the analytic continuation in the coupling constant method within the framework of the relativistic mean field theory.

在这些工作的基础上，我们将ACCC方法和RMF理论相结合，研究了原子核的单粒子共振态能量、宽度。

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。

In chapter three, the dynamics of a driven spin-boson model is studied by means of the perturbation approach based on an unitary transformation. Analytical expressions for the population difference and the coherence of the two state system are obtained.

在第三章中，采用基于幺正变换的微扰方法，我们研究了驱动spin-boson模型的动力学，得到了在微波驱动下二能级系统的粒子数反转和相干性的解析表达式。

In this paper, we studied the entangled quasi-particles created by local and nonlocal Andreev reflection in a structure of normal metal-superconductor-normal metal.

在本文中，我们讨论了普通导体-超导体-普通导体型结构中由Andreev反射产生的粒子纠缠。

The particle velocity and turbulence of dust were measured using a Laser Doppler Anemometer .

粉尘粒子速度及紊流度是采用激光多谱勒测速仪进行测量及计算的。

Keywords: particle measurement; signal processing; phase Dopplor anemometry PDA

中文关键词：粒子测量；信号处理；激光相位多普勒

Portable anemoscope was used to get the spray velocity and d was verified with laser phase Doppler particle anemometer.

采用风速计测量了喷雾速度，以及相位多普勒粒子测速仪测量验证了d。

According to the clear water experiment, aeration performance of the new equipment is good with high total oxygen transfer coefficient and oxygen utilization ratio.

曝气设备的动力效率在叶轮转速为120rpm～150rpm时取得最大值，此时氧利用率和充氧能力也具有较高值。

The environmental stability of that world - including its crushing pressures and icy darkness - means that some of its most famous inhabitants have survived for eons as evolutionary throwbacks, their bodies undergoing little change.

稳定的海底环境─包括能把人压扁的压力和冰冷的黑暗─意谓海底某些最知名的栖居生物已以演化返祖的样态活了万世，形体几无变化。