一种基于单片机的RGB LED背光源的设计

为设计背光源提出了一种解决方案。根据三原色原理,利用单片机作为控制元件、结合NCP 5623三原色控制芯片,设计了一种RGB LED背光源。对于NCP 5623的控制所用的I2 C总线的实现上,采取利用单片机任意2个通用I/O管脚和NCP两5623的I2 C引脚连接,作为I2 C总线,通信协议实现上采用软件模拟的方式,且单片机作为控制单元,只需实现最小系统的功能。这种方式简化了设计,节约了I2 C总线主控制器器件,降低了成本。在软件设计上,在此给出了软件模拟I2 C协议方式下的NCP 5623每一个功能的实现程序模板,给出了NCP 5623应用的一种通用方法,组合使用可实现三原色及亮度可调的基本功能。对教学和实践都有深刻意义。     

α-Al_2O_3晶体的色心

用中子辐照的方法使α-Al_2O_3单晶体着色,观察其对光的吸收以分析晶体里存在的色心,研究中子辐照剂量和热处理对晶体色心的影响,并测得了有关色心的发光光谱.     

彩色显像管压机管路系统及其配件的清洗

彩色显像管玻壳压机的管道系统是压机的重要组成部分，除了管道系统复杂难于施工以外，有一个特殊的要求，管道内壁非常清洁，否则在压机运行中，管道内有不洁物及其它杂质混入液压油内，将造成压机液压系统中的元器件的损坏，直接影响着它的正常运行，为此该厂在制造压机过程虽设计了一系列特殊的清洗工艺及清洗装备，成功地完成了此项制造任务。     

散射参考光法制作真彩色全息图

本文提出了用散射参考光制作2D真彩色全息图的原理,按本原理制作的全息图比用散射物光法制作的图像清晰得多,并且使记录激光能量得到充分利用,特别适用于记录大幅面彩色全息图。     

淀粉色浆在手绘加工中的应用

用淀粉色浆代替颜料。扩大了手绘产品的花色品种。文中介绍了用酸性染料色浆绘制真丝绸，用直接染料色浆绘制棉、麻、粘胶丝织物，用分散染料绘制合纤织物等。使用效果好。同时，分别总结了各色浆的调制方法和产品加工要求。     

Deposition of Carotenoids in Eggs from Hens Fed Diets Containing Saponified and Unsaponified Oleoresin Paprika

Deposition of carotenoids in saponified paprika (SP) and unsaponified oleoresin paprika (OP) in egg yolks as well as the dietary level for desired pigmentation were evaluated. Sixty-four hens on a carotenoid-depletion diet were divided into two replicated groups of each of eight dietary treatments containing from 0 to 16 mg paprika carotenoids per kg feed. Colour and the carotenoid content of egg yolk increased linearly ( P< 0·01) with the amounts of paprika carotenoids in the diets. The colours of egg yolks from hens fed similar concentra-tions of OP or SP were not significantly different ( P< 0·01). A low dose (4 mg kg⁻¹) of OP or SP provided yolk colour equivalent to the colour of eggs in supermarkets. High-performance liquid chromatographic analyses showed that carotenoids deposited in the yolk are in the free alcohol form, regardless of the form of carotenoids in the diet. Capsanthin, the predominant carotenoid in paprika, was deposited in egg yolk less efficiently than zeaxanthin and lutein.     

Noisy speech emotion recognition using sample reconstruction and multiple-kernel learning

Speech emotion recognition (SER) in noisy environment is a vital issue in artificial intelligence (AI). In this paper, the reconstruction of speech samples removes the added noise. Acoustic features extracted from the reconstructed samples are selected to build an optimal feature subset with better emotional recognizability. A multiple-kernel (MK) support vector machine (SVM) classifier solved by semi-definite programming (SDP) is adopted in SER procedure. The proposed method in this paper is demonstrated on Berlin Database of Emotional Speech. Recognition accuracies of the original, noisy, and reconstructed samples classified by both single-kernel (SK) and MK classifiers are compared and analyzed. The experimental results show that the proposed method is effective and robust when noise exists.     

推进我国彩电产业全面发展之探讨

目前,我国彩电产业处于转型升级的关键期,受到各方关注.列举了主要国家如日本、韩国、中国的彩电发展模式,详尽分析了我国彩电产业优势与劣势以及面临的机遇与挑战.最后,根据我国彩电产业自身的现状,同时借鉴国外彩电产业发展经验,建议我国彩电产业应汇集多方力量全面推动发展.     

基于LS-SVM的情感语音识别

提出了一种基于LS-SVM的情感语音识别方法。即先提取实验中语音信号的基频,能量,语速等参数为情感特征,然后采用LS-SVM方法对相应的情感语音信号建立模型,进行识别。实验结果表明,利用LS-SVM进行基本情感识别时,识别率较高。     

基于SVM的语音情感识别研究

随着计算机技术的发展,人们对和谐人机交互的要求不断提高,这就要求计算机能理解说话人的情感信息,即能进行语音情感识别。本文提出了一种基于支持向量机（SVM）的语音情感识别方法,主要对人类的6种基本情感：高兴、惊奇、愤怒、悲伤、恐惧、平静进行研究。首先对自建语音情感数据库的情感语句提取特征,然后运用序列前向选择（SFS）算...