The results of simulation indicated speech signal processed by the optimum algorithm presents obvious periodicity in time domain , and effect of the formant is removed or restrained effectively in frequency domain 处理后的语音信号在时域上表现出明显的周期性特征，同时在频域上也观察到声道的共振峰结构影响得到消除或有效的抑制。
2 . prepare the self - adaptive damper which consists of piezoelectric ceramic and er fluids . the experiment show that the resonant peak of the self - adaptive damper minish more than 30 % compared with the damper whose electrostatic field built by piezoelectric ceramic did not charge up er fluids 结果表明，前者相对于后者，阻尼器共振峰被压抑了60以上，从而证实了压电陶瓷在外压力作用下产生的静电场可以驱动电流变液； 2
Moreover in speech enhancement , especially in reducing the pulse noise , morphological algorithm has its unique advantage . particularly morphological filter may maintain the preferable accurate of the speech signal in speech waveform , and which produces little impairment to the formant of speech . so the spectrum structure of the speech is retained well , and the quality of the speech will not be reduced 特别是，在时域波形分析中，形态学滤波增强较小波去噪更好地保持语音信号的细节；在频域分析中，形态学滤波对语音信号的基音频率、频谱斜率、共振峰等语音特征的影响很小，因而能够较好的保留语音信号的频谱结构，使语音品质不致降低。
The preparation of gold electrode of double layers and the spectroscopic and electrochemical studies when it was incubated with bacteria : cv measurement demonstrated that the defect content within the double layer gradually decreased during the incubation , sers showed that the film structure became order during the incubation and the bands of double and triple bonds shifted toward high wavenumber , too 循环伏安测试表明在双分子层与细菌培养的过程中，双分子中层中的的缺陷数量逐渐减少。表面增强拉曼光谱证实在双分子层与细菌培养的过程中，双分子中层的膜结构变得更加有序，且其双键与三键的共振峰也同时向高波数的方向移动。
This thesis tries to update the cmdsr system to achieve the characters below : real - time , better robust , higher recognition rate , non - special - man . considering the disadvantages of traditional improved spectrum subtraction speech enhancement , this thesis proposes the theory of fuzzy spectrum subtraction based on the fuzzy theory and improved spectrum subtraction speech enhancement ; as for the difficulties of detecting the endpoint of speech signal , the thesis gives the table of initial and the improved parameters , with which we can confirm the endpoints of mandarin digit speech ; the thesis puts forward two - level digit real - time speech recognition system , the first level is based on discrete hidden markov model which is linear predictive coding cepstrum ( lpcc ) and difference linear predictive coding cepstrum ( dlpcc ) , the second level is based on formant parameters ; as for the realization of hardware , the thesis depicts the realization of every part of cmdsr based on the tms320vc5402 in detail ; as for the development of software , the thesis gives the software design flow chart of cmdsr , simulates the basic theory with matlab language and gives the simulation results 针对传统的“改进谱相减法语音增强”参数设定单一、环境适应能力差的缺点,提出了一种利用模糊理论和“改进的谱相减法”结合的“模糊谱相减法语音增强” ;针对语音信号端点检测困难的特点,通过matlab仿真试验,给出了能够准确确定数码语音端点的初始和改进参数表;提出了利用基于线性预测编码倒谱参数和差分线性预测编码倒谱参数相结合的离散隐含马尔可夫模型进行第一级识别、利用共振峰参数进行第二级识别的两级汉语数码语音识别系统,在保证系统实时性的同时,实现连接汉语数码语音识别系统识别率的提高;在硬件实现上,详细阐述了基于tms320vc5402的连接汉语数码语音识别系统各部分硬件设计;在软件开发上,给出了连接汉语数码语音识别的软件设计各部分的流程图,并对各部分进行了matlab仿真,并给出了仿真结果。
The contribution to the giant resonances from the currents of vector mesons are also examined , it shows that currents of vector mesons play an important role in collective giant resonances . by studying the properties of collective multipole excitations of nuclei , a general conclusion is that those effective lagrangians recently developed can well describe not only the nuclear ground state properties of finite nuclei , stable and unstable ones up to the nuclei drip lines , but also the collective excited states and giant resoancnes in doubly closed shell nuclei 通过对核的电多极巨共振性质的研究，我们发现现有的这些非线性的有效相互作用不但能够很好地描述有限核的基态性质，包括球形和变形核以及远离稳定线核，而且对一些双满壳核的集体激发态和巨共振性质也能进行合理地解释，包括巨共振峰的位置和中心能量。
The quantized lp coefficients are replaced by the unquantized lp coefficients in the frequency domain expression of the feel weighted filter . the error signal has more similar envelope shape , and the hearing effect is better than before because the unquantized lp coefficients have more accuracy than quantized lp coefficients 由于未量化的线性预测系数具有更高的精度,因此,误差信号通过修正后的感觉加权滤波器以后,具有与语音信号谱更加相似的包络形状,从而更好地利用共振峰对误差的掩蔽效应,达到更佳的主观听觉效果。
The incorporation re3 + ions creates si - o - re bonds , which are more resistant to attack from water and may also reduce the concentration of silanol groups . furthermore , the presence of re in tetrahedral positions creates a negative charge on the surface of the pore walls , which repels the oh " ions that catalyze the hydrolysis of siloxane bonds D ） rehms介孔固体其合成和焙烧样品的凹stmasn ’ mr谱明显不同于纯硅样品，样品展示一个宽的共振峰，化学位移在6 。 101卯m和1llnnm ，对应于q ’和q ‘硅环境。
Up to now , the method , we used in studying the properties of collective multipole excitations of nuclei , treat the continuum by a discretization procedure with expanding wave functions in a harmonic oscillator basis . this approximation can be justified for very narrow resonances and gives a global description of the contributions from the continuum . a complete treatment of the continuum can be carried out by the continuum rrpa with a green " s function method 为了解决这些问题，需要改进相对论无规位相近似方法对z连续态的处理，采用连续相对论无规位相近似计算，通过格林函数方法可以严格处理连续态在核的集体激发中的贡献，并用来描述核的集体巨共振性质，包括核的巨共振能量、巨共振峰的强度以及巨共振宽度等重要的物理量。
Density of states for finite - length nanotubes with a magnetic impurity is studied as well . it is found that the kondo resonance is strongly affected when the level spacing in the finite - length sample becomes larger than the kondo temperature , in a way that depends on the chirality and the number of unit cells of carbon nanotubes 接着我们讨论了有限长碳纳米管中的磁性杂质,计算表明当kondo共振峰宽度小于有限长样品的能隙时, kondo共振峰的性质受到很大影响,具体变化情况取决于碳纳米管类型和所包含的原胞数目。
