浅析柳琴戏的唱腔特点

本文阐述柳琴戏历史发展状况 ,唱腔曲调的五种特点及自由转调的利弊情况     

潮州方言单字调的实验研究

潮州方言属闽南区方言.本实验采用现代计算机声谱分析软件Praat对潮州方言单字调进行声学研究,并与其他方言相比较,得出男女声调域.用T值法进行标准化分析,得出潮州方言单字调的空间五度值,并与传统实验结果相比较.     

高速调制解调器中的多维格状编码和壳映射

采用话带调制解调器进行数据信息传输特别是在接入环路中，具有价格低，方便，灵活的优点，是目前广为人们采用的一种数据传输方式。本文结合Ｖ．３４建议，讨论了２种高速调制解调技术－多维格状编码和壳映射技术，从理论上分析了它们改善调制解调器性能，提高传输速率的机理，最后，给出了计算机的仿真结果。     

列车调度无线通信系统

介绍了新型４００ＭＨｚ通信系统的组成、特点及通讯方式．此系统采用锁相环频率合成器，提高了集成电路工艺水平，并使用了ＭＣ１４５１５２芯片，将频率由原来的１５２ＭＨｚ提高到４００ＭＨｚ．     

Modulation Transfer Function of Blazed Diffractive Optics Produced by Diamond Turning

In blazed diffractive optics produced by the diamond turning process, the finite size of the tool determines the decrease in diffraction efficiency of the desired order. Diffracted light of other orders degrades the image quality. To analyze the influence of the tool, we evaluate diffraction efficiency and phase of periodic gratings based on the electromagnetic theory and calculate modulation transfer function using a linear system approach.     

A novel bits loading algorithm for adaptive modulation OFDM multimode fiber communication system

A novel bits loading algorithm is proposed for adaptively modulated optical OFDM (AMOOFDM) multimode fiber communication system to decrease the system bit error rate (BER) caused by some OFDM subcarriers located at the deep nulls in the high frequency region of multimode fiber. The simulation results show that the performance of the new algorithm is approximate to the optimal algorithm-Greedy algorithm, but its computational complexity is considerably lower, thus the new algorithm is easy to implement. Comparing to fixed bits loading, adaptive bits loading can reduce the system BER effectively.     

引入PSpice技术，改革电子技术实验课程

通过音调控制放大电路的实例，介绍了PSpice仿真软件电子技术实验课中的作用。利用PSpice软件设置交流分析、参数分析和模型参数、全局参数，仿真分析音调控制电路高低音控制特性以及电路的输入输出的相位关系，使学生能直观地理解课堂内容，从而提高教学效果。     

Influence of Diffusion on Competitive Dynamics of the Modes of Lasers with a Vertical Cavity

The dynamics of radiation of a vertical cavity surface emitting laser (VCSEL) has been simulated numerically under the conditions of a pseudorandom sequence of the pumping current pulses. The influence of diffusion and spatial burning of holes in the carrier concentration distribution in the active layer on the competition of the transverse modes of the VCSEL has been investigated.     

中国动画创作的文化渗透与市场

认为从以下几个方面可以找到中国动画创作文化渗透与市场的结合点:加强文化渗透,强调文化的艺术格调;重视文化风格体现,突出动画的创新特色;考虑文化心理差异,保持文化的独特魅力;重视文化品牌建立,弘扬文化的地域精神;把握消费文化取向,促进市场的繁荣发展.