基于ARM嵌入式以太网接口的设计

介绍了一种嵌入式以太网接口的设计与实现方法。首先对微处理器LPC2368和物理层芯片DP83848C作了简单的介绍,然后给出了基于LPC2368的以太网接口的硬件设计,最后简述了其软件的实现过程。     

以DSP实现基于概率DP匹配算法的说话人识别系统

提出了利用概率DP匹配算法进行说话人识别的的设想。并给出了运用TMS320C5416实现说话人自动识别系统的方案。该系统利用一种新的语音信号r阶的倒谱线性回归系数等参数构成识别的特征矢量集，运用提出的概率DP匹配算法进行与文本无关的说话人识别。实验结果表明该系统具有识别精度高、识别速度快，占用系统资源少等特点，是一种有效的说话人自动识别的实现方法。     

领属性保留宾语句的句法分析

领属性保留宾语句是由领属者提升推导而成的,其所在句的动词受达成范畴、时体范畴与致使范畴等扩展。致使范畴可语音实现为“把”,达成范畴选择领属者与被领属者组成一个名词性短语（DP结构）作役事。汉语的定语标记（D）可以没有语音实现,这使得役事中的领属者可以提升。领属者在不同的位置提升会推导出不同的领属性保留宾语句。在名词短语中,领属者与被领属者具有不对称性,这使得它们在互换、提取等语法行为表现出特异性。     

烟台话中不带指示词或数词的量词结构

不带指示词或数词的量名结构表定指是南方量词发达型语言的典型特征,但地处北方指示词发达区域的烟台话,也存在类似的情况,本文详细分析了这种量词结构的种种用法,指出主语位置上的量词结构除了可以表定指,还可以表特指等等。而该方言的量词结构只用于表达主观评述,也是与吴语粤语相区别的特点。在句法上,烟台话量词结构中指示词或数词"一"都是零形式。部分居中量词发展为定语标记、部分句首的"个"发展为话语标记。     

基于ARM嵌入式以太网接口的设计

介绍了一种嵌入式以太网接口的设计与实现方法。首先对微处理器LPC2368和物理层芯片DP83848C作了简单的介绍,然后给出了基于LPC2368的以太网接口的硬件设计,最后简述了其软件的实现过程。     

基于Dominant Pruning算法的ODMRP协议研究

ODMRP是一种基于mesh网络的adhoc多播路由协议,可提供较好的性能。先简单分析了ODMRP的机制,指出其可待改进的地方,并使用DP(Dominant Pruning)算法对其进行了改进,提出了基于DP算法的DP-ODMRP协议。     

基于C8051 F060的在线pH检测记录仪的研究

论述了基于C8051F060单片机的在线pH检测记录仪的设计方案,并详细介绍了其软硬件设计。该在线pH值检测记录仪可实时监测被测对象的pH值,自动对测量数据进行存储并可通过4～20mA标准电流和Profibus-DP通信网络对数据进行远传。该设计方案可广泛适用于pH值的在线监测,并且为今后单一仪表向仪表网络实施监控系统发展打下良好的基础。     

Learning to teach 3D printing in schools: how do teachers in Korea prepare to integrate 3D printing technology into classrooms?

3D printing implementation in educational contexts has gained considerable attention in recent years. However, research shows that both in-service and pre-service teachers lack digital literacy and the confidence required to teach this emerging technology. This study reports the current challenges and opportunities in 3D printing education in Korea and identifies the range of knowledge required for teachers to integrate 3D printing technology into classrooms in meaningful ways. The technological, pedagogical, and content knowledge (TPACK) framework was used to analyze the certificate program for 3D printing educators and in-service teachers’ practices. The findings from interviews with 10 in-service teachers and participant observation in the 3D printing training workshop for pre-service teachers revealed that technological knowledge is overly emphasized in the 3D printing teacher training curriculum. Thus, many in-service teachers develop their content knowledge and pedagogical knowledge by exchanging ideas with other teachers online and running project-based courses with flipped classroom approaches. Two potential paths were discovered for developing curricula that cross over the domains of the TPACK framework to successfully integrate the technology into classrooms: collaboration between teachers in different subject areas and industry experts to develop technical knowledge and curriculum, and contextualizing 3D printing technology in relation to open-source digital culture.     

Conservatism and personality factors in a sample of adolescents

Relationships between Cattell High School Personality Questionaire factors and the adolescent version of the Wilson-Patterson Conservatism Scale were examined in a sample of 492 teenagers. Conservatism was significantly related to a number of personality traits in both boys and girls. Results suggest the existence of a “conservative personality.”     

机电一体化配料秤在烧结厂的应用

文章简述了机电一体化配料秤相对于传统配料秤的特点以及它通过PROFIBUS DP网络与过程控制系统（DCS）之间的网络连接情况,同时也简述了在DCS控制系统里组态与控制的过程以及机电一体化配料秤在烧结厂的使用情况和由此而带来的经济效益。