大理白语的并列复合词

文章从结构类型和词素顺序两方面对大理白语中的并列结构复合词进行考察,通过分析总结得出：在满足语义原则的前提下,大理白语并列复合词的词素顺序主要受音高制约,当前后两个词素音高相同时则按主要元音的舌位或逻辑关系并列。     

农村政治精英角色转变及其背景

中国农村精英自本世纪以来,其相对与国家农民的角色已经发生了连续性的变化,这一变化透视了国家在向基层社会渗透中面临的挑战和矛盾,这与中国近代以来的现代化进程紧密相连。     

近代中国技术引进的案例：华昌公司挥发炼锑技术

近代湖南华昌公司斥巨资成功地进行了挥发法炼锑技术的引进,达到了当时世界的先进水平,为华昌公司后来的繁盛一时奠定了重要基础。其引进的技术即是现代所谓的挥发焙烧（熔炼）—还原熔炼炼锑工艺。华昌公司的技术引进之所以成功,主要是其领导者的远见卓识、政府的扶植、工程师的卓越才能和市场需求的拉动等因素的共同作用使然。知古鉴今,我们今天的技术引进应该以市场需求为导向,注重制度和管理创新的互动以及保障人才的可资利用。     

小提琴学生音准能力的培养

音准是指我们唱出和拉出的音,要符合音响学原理的振动频率.有了音准概念,才有可能拉准音.要拉准音,要靠耳的听辩能力,手在琴上的触觉能力和迅速的纠错能力,三者相互配合才能做好.     

Using Shainin DOE for Six Sigma: an Indian case study

Shainin design of experiments (DOE) offers a powerful and effective experimental design approach for solving the chronic quality problems that plague manufacturers worldwide. However, the academic literature still contains a few empirical studies on the use of non-statistical Shainin DOE tools to simplify the quality improvement initiatives. In order to overcome this deficiency, this case describes framework for incorporating Shainin experimental design within Six Sigma define–measure–analyse–improve–control and tests its effectiveness in an Indian automotive gear manufacturing unit. Shainin tools such as Paired Comparison, Product/Process search, Concentration chart, B vs. C analysis, Pre-control chart were employed to analyse, improve and control the gear manufacturing process. The study provides stimulus for the wider application of Shainin experimental design approach for industrial experimentation.     

利用语音倒谱参数及基音信息辨认说话人

本文介绍了一种基于矢量量化技术的说话人识别系统,在特征参数上,选用动、静态倒谱互相补偿,充分描述说话人声道模型,同时选用能描述说话人声带激励源特点的基音参数,以全面反映说话人特征。识别时,对三个参数进行优化组合,构成最佳的归一化联合失真进行判决。实验表明,对16人进行测试,当语音长度为2秒时,识别率高达96．8％。     

Infant‐directed speech to infants at risk for dyslexia: A novel cross‐dyad design

When mothers speak to infants at risk for developmental dyslexia, they do not hyperarticulate vowels in their infant‐directed speech (IDS). Here, we used an innovative cross‐dyad design to investigate whether the absence of vowel hyperarticulation in IDS to at‐risk infants is a product of maternal infant‐directed behavior or of infants’ parent‐directed cues. Interactions between mothers and infants who were at risk or not at risk for dyslexia were recorded in three conditions: when mothers interacted with (a) their own infants, (b) infants who were not their own but of the same risk status, and (c) infants who were not their own and of the opposite risk status. This design revealed both infant and parent effects. Mothers of not‐at‐risk infants hyperarticulated vowels significantly more when speaking to not‐at‐risk than to at‐risk infants. In contrast, mothers of at‐risk infants hyperarticulated vowels significantly less than NAR mothers, and this was irrespective of infant status. Mothers of not‐at‐risk infants thus adjusted their IDS to the infant's risk status, while mothers of at‐risk infants did not. We suggest that IDS is determined reciprocally by characteristics of both partners in the dyad: Both infant and maternal factors are essential for the vowel hyperarticulation component of IDS.     

中国学习者英语语调群边界指征声学研究

30名中国英语学习者朗读的短文语调群边界指征———停顿、起首轻音节、延时音节和非重读音节的音高重设,具有三个特点:1)停顿的平均时长为411.8毫秒,比本族语者的短,但双尾T检验说明两者没有显著差异;2)四个指征的频率和比例都很高,其语音环境总体上与本族语者较相似,但在细节上有差别;3)卡方检验体现出学习者和本族语者的语调群边界指征存在显著差异。这说明,学习者划分语调群的依据是语调群边界的四个指征。其高频率出现可能源自:1)学习者母语语调群边界特征的迁移;2)学习者语调学习仍然处于管制式初级信息处理阶段,语调相关信息尚未内化或自动化,所以容易出现随意性错误。     

多功能蓄冷空调实验装置的研制和应用

设计建立了一台多功能蓄冷空调实验装置，它可以模拟制冷剂直接蒸发式冷蓄冰罐的运行过程，循环水直接接触融冰供冷循环过程和对房间实行低温送风过程，运用冷媒，可以进行间接冷媒冷却下有限空间内管束外冰－水固液相变过程的研究。应用该实验台，进行了有限空间内管束外冰－水固液相变过程的研究，和制冷剂直接蒸发式冰蓄冷过程动态特性的研究，实验研究结果可为冰蓄冷器的设计和优化提供科学依据。     

对甲基苯甲醛改性煤沥青的改性机理研究

以对甲基苯甲醛(4-methyl benzaldehyde,简称4-MB)为改性剂,在对甲苯磺酸(PTS)的作用下对煤沥青(Coal Tar Pitch)进行了改性研究。采用傅立叶红外光谱(FT-IR)和核磁共振氢谱(1H-NMR)对煤沥青改性机理进行分析;采用扫描电镜(SEM)观察改性后煤沥青的形貌;采用光学显微镜观察改性沥青热解产物的光学结构。实验结果表明,对甲基苯甲醛在酸性催化剂的催化作用下与煤沥青发生亲电取代反应。