前后的

The less the oxygen content and the more content of N element in the form of pyrrole-N were observed under stronger microwave power radiation. It was affirmed that the desulfurization capability of activated carbon could be greatly increased by microwave modification. According to the analysis on surface physical and chemical characteristics, a mechanism was concluded: Modified by microwave, functional groups begin to dissociate, alkalescency is enhanced, and surface oxygen content is reduced; the amount of active sites produced by dissociation of oxygen-containing groups increased, so did the pyrrole-N groups. Apparently, the activated energy of SO〓 adsorption decreased.

通过比较微波改性活性炭前后的吸附脱硫能力，结合它们的表面物理和化学性质的变化分析，确认微波改性活性炭的脱硫性能有显著提高，其作用机理在于微波处理后，活性炭表面微观形貌发生了较大的变化，化学基团发生分解，碱性特征增强，表面含氧量减少，以CO形式释出的含氧官能团分解后产生的活性部位和吡咯氮官能团数量增加，吸附SO〓的表观活化能降低。

Abstraction :This paper analyzes the principle of Butterworth digital filter,discuss bilinear transformation method of filter design;record a piece of voice by Microsoft voice recorders, carry on its a time-domain analysis, spectral analysis;then design a specified Butterworth band-stop filter based on the theory of bilinear transform,analyze the filter by the tool named Fvtool;and filter the voice signal acquired by voice recorder.finally compare its characteristics of frequency domain and time domain,study the applications of Butterworth filter in digital signal processing ,in particular in signal denoising.

本文分析了巴特沃思数字滤波器的原理，探讨了双线性变换法设计滤波器的方法；用微软录音机采集一段语音，对其进行了时域分析，频谱分析；然后使用双线性变换法设计了一个的巴特沃思带阻滤波器，并且使用fvtool对设计的滤波器进行分析；然后利用该滤波器对采集的语音信号进行滤波。最后对比滤波前后的语音信号的时域和频域特性，研究了巴特沃思滤波器在信号处理尤其是信号滤波去噪方面的特性和应用。

In order to determine the efficacy and safty of amlexanox oral pellicles when applied topically for treatment of RAU, A multicenter, randomized

我们通过多中心、随机、双盲、安慰剂对照试验，观察109例和107例复发性轻度口腔溃疡患者局部应用氨来呫诺口腔膜3天和5天的临床疗效，并通过比较用药前后的全血图、肝肾功能和小便常规检查以及用药不良事件的发生率评价该药物的安全性。试验共纳入符合标准的RAU患者216人，脱落病例共3人，完成108例和105例，初诊、用药满3天、用药满5天

In our clinical practice, we have found that there might be some new coronary artery occlusions when we performed PCI several days after CAG.

因此，积极研究冠造前后的凝血功能的改变及可能的机制，探索切实可行的规范化防治措施，减少急性冠脉事件的发生，具有重要的临床价值。

Using the precipitation of the Indian summer monsoon onset process by the method of EOF expansion, the following conclusions can be found. The onset of the monsoon is mainly seen as the augmentation of precipitation and the rapid advance of monsoon rain belt with sudden change in the distribution of its space and time.

用南亚夏季风爆发前后的降水量资料作了经验正交函数分解，分析表明，南亚夏季风的爆发主要体现在降水的突然增加和季风雨带的快速推进上，雨带的时空分布有突变的特点。

Current waveforms of the system without and with the line trap ...

对比阻波器投入前后的电流波形，由1个峰值大且陡的尖脉冲变成了2个平缓的尖脉冲，且电流峰值、3次谐波分量、零线电流都减小，改善了设备运行的工况，保证了继电保护动作的正确性和供电系统的安全稳定运行。

A series of amorphous Ni-Sn-B/SiO 2 catalysts with different tin contents were prepared by salt impregnation and KBH 4 reduction.

采用化学还原法制备了一系列三元非晶态Ni Sn B/SiO2 催化剂，并考察了Sn含量对催化剂的苯乙酮选择加氢制备苯乙醇反应的活性及选择性的影响，同时对Sn改性前后的催化剂进行了系统的表征。

The polyurea coating was tested with Taber tribomachine and the highp ressure water jet erosion tester for studying the wear behavior of polyure coating under conditions of dry friction and highspeed water jet contained sand. The morphology of the coating was observed with SEM and Chromatic confocal 3D Profiler. The surface component of test samp les was measured by FT2IR Spectrometer and Electron Energy Disperse Spectroscopy. The p roperties of polyurea coating under two testing conditionswas analyzed.

为研究聚脲涂层在干摩擦条件下和高速含砂水流冲蚀条件下的性能变化情况，用 Taber 磨损试验机和高速含沙水射冲蚀磨损试验机测试了聚脲涂层的磨损性能，用扫描电子显微镜和白光共焦三维轮廓仪观测涂层的磨损表面形貌，用表面红外光谱和电子显微镜能谱元素分析了涂层表面试验前后的组分变化，分析了涂层在2种摩擦条件下的磨损情况。

With the all-around evaluation about the fore-and-aft distribution process, it demonstrates the improvement of optimized logistics system.

在对企业物流配送流程进行优化分析之后，我们建立一个系统的指标评价体系，通过对优化前后的配送流程进行全面的评价，从各个评价指标的角度来论证流程优化给企业物流配送带来的收益和变化。

From the angle of making the historical summary, it made a systematic observation and study towards the triangle relation among KMT, CPC and U. S. A. after the victory of the war of resistance against Japan with the basic principle of historical materialism, through the analysis on a lot of full and accurate data, revealed the historical characteristics and its law on the evolution of the triangle relation among KNT, CPC and U.

本文从总结历史经验的角度，运用历史唯物主义的基本原理，对抗战胜利前后的三国四方关系进行了系统的考察与研究，通过对大量翔实资料的分析，揭示了三国四方关系演变的历史特点及其规律。

For a big chunk of credit-card losses; the number of filings (and thus charge-off rates) would be rising again, whether

年美国个人破产法的一个改动使得破产登记急速下降，而后引起了信用卡大规模的亏损。

Eph. 4:23 And that you be renewed in the spirit of your mind

弗四23 而在你们心思的灵里得以更新