共振峰

One plasmon band between that of monometallic Ag and Au observed in their UV-Vis spectra indicated the formation of Au-Ag alloy nanoparticles.

在其UV-Vis光谱中只观察到一个位于单金属银和金之间的等离子体共振峰，表明Au-Ag合金纳米粒子已经形成。

It is found that at the main plasmon peak wavelength, nanotube has larger electric field distribution.

结果发现，在等离子体共振峰波长入射时，管状纳米结构拥有更大面积的强电场分布。

The electromagnetic spring with tooth structure is adopted in this paper to adjust the stiffness of isolator, which make the isolator work with different stiffness in different excited frequencies. So the isolation performance is improved as the resonance frequency is eliminated in a broad band.

本文采用齿形结构的电磁弹簧来改变隔振器的刚度，使隔振器在不同外扰频率下变刚度运行，从而能实现在较宽的频带范围内无共振峰，改善隔振性能。

Firstly,we particularly explained the algorithmic of themusic recognition.Then,we made a study of the music characteristic and the musicrecognition methods.As for the burrs of the music signal,we put forward a curveplastic method to eliminate the burrs.Considering the difficulties of detecting thepoint of the music speech,we made use of the multi-frequency energy curve to detectthe end-point of the music signal with the crossing zeros rate.As for thedisadvantages of the large operation and influence of the formant,we improved theAMDF theory with the linear prediction algorithmic to detect the error.In order toobtain the characteristic parameter of the music signal,wo calculate the MFCCparameter to obtain the template and the pending signal characteristic parameter.Inorder to improve the rate of the recognition,considering the disadvantages of theDTW algorithmic,we find a new method to improved the DTW algorithmic bybroadening the point of the music signal and made simulation experimentation;As forthe disadvantages of the contraposition grade to the pitch,cadent and sing name,wefind a method to dynaic adjust the results of the recognition to improve the accuracyof the grade.

详细阐述了嵌入式音乐识别算法的详细设计与实现，研究了音乐语言的特点和音乐识别的侧重点，并阐述了基于音乐信号特色的语音处理及识别方法；针对音乐信号中的毛刺干扰，提出了曲线整形的思想，消除了音乐信号中的毛刺；针对音乐信号端点检测困难的特点，利用多频段能量曲线分割结合过零率来实现端点准确检测；针对音高提取运算量大且容易受共振峰影响的特点，利用线性预测残差的方法对传统的AMDF算法进行了改进并提取出了音高，在实际实现时，优化了AMDF算法，减少了计算量；为了得到较好的特征参数，通过求取梅尔频标倒谱系数的方法，分别提取了模板信号特征参数和待测信号特征参数；为了提高识别率，针对传统DTW算法的缺陷，采用了放宽端点和声刺激法改进了传统的DTW算法的性能并进行了仿真试验，使音乐识别率得到明显提高；在音高、节奏评分时，针对对位评分的缺点，采取了动态调整的方法提高了评分的准确度。

F2 of nasalized vowels at tongue root in GZPTH enjoy higher frequencies while those of tongue-tip vowels give lower frequencies due to blurring pronunciation.

相比而言，广州普通话舌根舌尖发音最为含糊，在共振峰频率上表现为舌根鼻音的F2偏高而舌尖鼻音的F2偏低。

The software plots the waves,formants,and some other basic feature...

软件在屏幕上绘制出语音的波形，共振峰等图形，可以更直接的反映出被比较的两个语音间的差别。

On the basis of Linear Prediction Code theory, the LPC coefficients are used to get the traces of the formants frequency.

在阐述线性预测理论的基础上，利用线性预测系数实现了共振峰轨迹的提取。

The formants extraction of whisper speech is more difficult than that of normal speech because of the difference of the two kinds of speech.

耳语音不同于正常语音的特性，使得准确提取其共振峰存在更大的困难。

Objectiv To study the discriminating value of different frequency formants in voice identification.

目的 研究在话者识别领域，不同频率共振峰特征价值的大小。

Methods Formants of 10 female and 8 male twins' natural reciting speech were measured, discrimination value arid stability of which were compared and analyzed.

对10对女性与8对男性双胞胎正常明读语音的共振峰频率特性进行定量测量、比较、分析，统计。

It has been put forward that there exists single Ball point and double Ball points on the symmetrical connecting-rod curves of equilateral mechanisms.

从鲍尔点的形成原理出发，分析对称连杆曲线上鲍尔点的产生条件，提出等边机构的对称连杆曲线上有单鲍尔点和双鲍尔点。

The factory affiliated to the Group primarily manufactures multiple-purpose pincers, baking kits, knives, scissors, kitchenware, gardening tools and beauty care kits as well as other hardware tools, the annual production value of which reaches US$ 30 million dollars.

集团所属工厂主要生产多用钳、烤具、刀具、剪刀、厨具、花园工具、美容套等五金产品，年生产总值3000万美元，产品价廉物美、选料上乘、质量保证，深受国内外客户的青睐