目前语音跟踪在说话人干扰的条件下,即一段语音中存在多个说话人的混合语音信号时,语音跟踪质量会严重下降.针对这种情况,提出一种基于聚类分析与说话人识别的语音跟踪算法.算法首先使用改进的聚类分析方法进行语音分离,具体包括在K-means聚类中对质心进行缓存并降低采样率,以及在embedding特征空间引入正则项.其次,算法采用GMM-UBM说话人模型进行语音跟踪.实验结果表明改进的聚类分析方法可以有效提高算法的实时性及其语音分离质量,GMM-UBM模型在3 s语音的测试中具有84％的识别率.

Analysis of the current problems of innovation ability training,according to the requirements of elec-tronic information engineering and equipment and other professional training,targeted to professional practice system construction,combined with personalized and diversified training ways;Resolved through a variety of ways,such as in-tegration of teaching resources,such as teachers,equipment and the bottleneck problem of insufficient,from teaching concept,teaching resources,such as teacher and experiment course system,teaching method,multiple innovation prac-tice environment,construction of teaching material practice,explore the path of greatly improve students' practical abil-ity in innovation,through many years practice,form a good environment for the innovation of the teaching practice, students' practical ability and significantly improve professional cultivated manners,received in good condition.

作为三网融合的典型载体,反映技术创新与市场需求无缝对接的互联网电视产业近年来发展迅猛.艾瑞咨询数据显示,2013年中国联网电视终端销售量为2397万台,市场渗透率已达51.1％.但发展初期的粗放式管理导致产业发展环境混乱,产业链边界模糊,竞争处于无序状态.针对产业发展乱象,广电总局于2014年6月开始运用一套“组合拳”对互联网电视产业进行整改.在政策收紧后互联网电视何去何从,如何系统解读严管政策的影响,如何兼顾产业监管与产业发展是目前相关管理部门亟需考虑的问题.

It is for many years that Wearable devices are attractive to the market of terminal products. Since last year, the interest for Wearable devices was inspired by Google glasses again. A lot of leading enterprises and entrepreneurial teams were attracted to invest in it, and there is massive capital gathered by various sources, such as kickstarter, demohour, etc. So it is significant to analysis the development status of wearable devices and forecast its future. In this paper, the Present status was discussed at First. Then the perspectives of the wearable devices were studied. Some constructive advices were given at the end of the article.

With the popularization of higher education,local colleges are facing the dual pressures of competition from the job market as well as key institutions,so they need to base on its own status quo,cultivate excellent innovation talents with the character of firmer professional foundation,powerful practice ability,and fitting for the needs of the community,and go out of a unique sustainable development road.In this paper,based on our "experimental class of excellent engineer",the cultivation model of applied top-notch innovative talents is explored and we hope to provide a new idea of cultivating innovative talents for the school and the other the same type of college.

This paper analyzed the present situation and existing problems of current engineering application talents' cultivation to improve the overall innovation and practice ability of engineering student. It is necessary to customize the characteristic major construction,raise a cultivating mode which combines the individuation and diversification,take the Industry-University-Research Cooperation as the breakthrough point to some solve bottleneck problems such as the lack of teachers and devices,regard the Industry-University-Research Cooperation Base,teaching staff,teaching resource as the core,and make practice in the teaching philosophy,curriculum system,teaching method,multiple innovation in teaching practice environment and construction of teaching materials,to explore the road to significantly improve the students' innovation ability in engineering application. Through practice,some aspects such as the students' professional qualities and competition results have been raised significantly and received excellent results.

随着外部技术条件的成熟和内部市场空间的扩大,智能机顶盒正引起产业链各环节厂商的竞相布局。分析了智能机顶盒具备成为信息消费潜在新增长点的原因,阐释了智能机顶盒在推动信息惠民工程中发挥的突出作用,并提出推进智能机顶盒行业发展的相关措施建议,以期提升对智能机顶盒的重视程度,促进行业步入快速健康的发展轨道。

TiNi-V eutectic brazing alloy was fabricated by vacuum arc melting,and its spreadability on the surface of Si3N4 ceramic was investigated.The brazing of Si3N4 ceramic was achieved using TiNi-V brazing alloy.The typical interfacial microstructure was Si3N4/TiN+Ti-Si compounds/NiV.The effect of brazing temperature on the interfacial microstructure and properties of joints was investigated.The results showed that with the increasing of brazing temperature,the reaction between molten brazing alloy and Si3N4 ceramic intensified and the thickness of TiN+Ti-Si compounds layer increased gradually.Moreover,lots of microcracks were formed in the joints due to the residual stress in joints,which deteriorated the joining properties.The highest shear strength of 28 MPa was obtained when the specimen was brazed at 1 200 ℃ for 10 min.The joint fractured in TiN+Ti-Si compounds layer,which belonged to brittle fracture.

In view of the shortcomings and the unsatisfactory teaching result in experimental teaching system and experimental teaching mode in the past,this paper proposes a novel practice teaching system of "one main line,two platforms and three layers",by integrating various,comprehensive experimental projects into the curriculum experiment,curriculum design,graduate design,extra-curricular science and technology activities.Actual practice shows that the proposed practice teaching system has gained remarkable teaching achievements in improving quality of innovation and engineering design capabilities of information engineering students.

The aluminum alloy profiles has developed rapidly in our country with the outstanding energy saving and environmental protection performance, lacking of quality evaluation standards of energy saving and environmental protection performance become one of the problems to constrain its development. In order to further standardize and guide the development of this new generation of construction materials, it is urgent and essential task to continuously improve the quality of products, and establish an independent quality evaluation and certification system of insulated aluminum alloy profiles' energy saving and environmental protection performance.

基于虚拟仪器技术开发CAT虚拟仪表,并将它应用到液压装置的动特性测试及仿真研究之中.

本文论述了多媒体技术在液压传动课程教学中的应用.探讨了液压传动课程多媒体教学的功能模块和软硬件设计方案.