Extraction of novel features for emotion recognition

Hilbert-Huang transform method has been widely utilized from its inception because of the superiority in varieties of areas. The Hilbert spectrum thus obtained is able to reflect the distribution of the signal energy in a number of scales accurately. In this paper, a novel feature called ECC is proposed via feature extraction of the Hilbert energy spectrum which describes the distribution of the instantaneous energy. The experimental results conspicuously demonstrate that ECC outperforms the traditional short-term average energy. Combination of the ECC with mel frequency cepstral coefficients (MFCC) delineates the distribution of energy in the time domain and frequency domain, and the features of this group achieve a better recognition effect compared with the feature combination of the short-term average energy, pitch and MFCC. Afterwards, further improvements of ECC are developed. TECC is gained by combining ECC with the teager energy operator, and EFCC is obtained by introducing the instantaneous frequency to the energy. In the experiments, seven status of emotion are selected to be recognized and the highest recognition rate 83.57% is achieved within the classification accuracy of boredom reaching 100%. The numerical results indicate that the proposed features ECC, TECC and EFCC can improve the performance of speech emotion recognition substantially.     

提高人的素质是促进两个文明建设的根本：－对外来人口教育与培训的思考

改革开放引发了全国人口大流动，大批农村富余劳动力涌入城市，为城市经济的建设和发展主入了生机和活力。但由于来外人口大多来自偏远落后地区，精神、化素质较差，因而也给城市经济的发展和社会的稳定带来了负面影响，因此，在对其加强管理的同时，也应从培训、教育的角度促使其自身素质的提高。高等学校做为育人阵地，应该充分发挥自己的办学优势，协同有关部门共同做好外来人口培训工作，为促进两个明建设做出自己的贡献。     

海伦喷泉实验探究

建立了海伦喷泉的基本物理模型,并推导了水柱最大喷射高度和液面差、出水口直径以及液体密度的关系。实验方面表明,在不考虑温度对实验的影响下,利用控制变量法推导出出水口直径大小、液面差、两侧液体密度对水柱最大高度的影响,结果与理论吻合得很好。     

论英语语法的交际化教学

与传统的语法教学模式相比，交际法运用于语法教学具有独到的优势：它使学生的语法学习与语言运用相结合，大大提高了学生的交际能力。基于此因，拟就英语语法的交际化教学的具体方式方法做些探讨。     

对设计素描教学理念与实践的再思考

文章在对设计素描教学理念作进一步阐述的同时,重点提出了设计素描教学应注意的问题,即在设计素描教学中应融入创新思维、抽象思维,注重意象的运用,遵循循序渐进的教学原则,进行有层次、有目的的实践训练。这样才能体现出设计专业的教学特点,并对视觉传达设计产生普遍的意义和创新的价值。     

多校区大学管理研究

我国的多校区大学是在当前深化高等教育体制改革的过程中形成的 ,具有不同于国外多校区大学模式的特殊性。我国的多校区大学管理面临着一些基本问题 ,如实质性融合、集权与分权、组织成员对大学组织目标的认同、改善学科布局等。立足于我国高等教育改革实际对这些问题进行研究 ,具有重要的理论意义和现实意义     

学科教育与心理健康教育

学科教育与心理健康教育的渗透与融合，不仅为心理健康教育开拓了更为广阔的实践领域，也为学科教育提供了变革的空间，真正体现了“以人为本”的教育思想。这种结合是一个系统工程，首先要确定心理健康教育在学科教育中的基本目标；其次要构建相互渗透的基本架构；再次要提供两者有效结合的保障体系，即实施的原则和措施，以达到相互促进协调发展的目的。     

南唐诗研究述评

南唐诗在五代十国诗坛上有着非常重要的地位,但至今却没有引起应有的重视.对南唐诗的研究可分为两个阶段:20世纪以前的研究较为肤浅,主要是点评、感悟式的评价;20世纪以来,对其研究才陆续展开.南唐诗有着丰富的内容,可采取不同的方法进行研究.     

Co-benefit of hazardous trace elements capture in dust removal devices of ultra-low emission coal-fired power plants

The co-benefit of hazardous trace elements such as mercury (Hg), arsenic (As), and selenium (Se) capture in dust removal devices of ultra-low emission coal-fired power plants was investigated. Feed fuel and ash samples collected from 15 different coal-fired power units equipped with ultra-low emission systems were characterized to determine the concentrations and distribution characteristics of trace elements. It was found that the low-low temperature electrostatic precipitator (LLT-ESP) and the electrostatic fabric filter (EFF) had greater abatement capacity for Hg than normal cold-side ESP (CS-ESP). Only 0.8%–36.1% of Hg escaped from LLT-ESP and EFF, whereas 42.1%–90.6% of Hg escaped from CS-ESP. With the employment of EFF and ESP (inlet temperature<125 °C), 72.3%–99.1% of As and 70.7%–100% of Se could be captured before the wet flue gas desulfurization (WFGD) system. The significance level of the effects on the abatement capacity for Hg, As, and Se in ESP were analyzed by the Pearson correlation analysis and grey relational analysis. The results indicated that the low inlet temperature of LLT-ESP had significant promotional effect on the simultaneous removal of Hg, As, and Se. The smaller particle size of fly ash can be conducive to the adsorption of hazardous trace elements. The inhibitory effect of sulfur content in coal was significant for the enrichment of Hg and Se in fly ash.     

高压锅的发明

当你用高压锅做菜蒸饭时,能节省时间1/2到4/5,你知道是谁发明了高压锅吗?发明高压锅的是法国物理学家、数学家、发明家丹尼斯·帕平,