高校非教师系列基层工作人员职业倦怠审视与分析

高校非教师系列基层工作人员的职业倦怠现象已日益突出。职业的社会认同感低、工作压力大、发展空间小、校内管理体制与评价体系等都是造成职业倦怠的原因,建议从强化职业认同感、满足个体的基本需要及个人努力等方面对进行心理调适。     

从换路定律证明看扩充实数的必要性

指出了在电路分析课程中换路定律证明方面存在的矛盾,证明矛盾的根源在于实数的完备性,并依此说明了建立广义实数概念的必要性.     

邓小平的真理检验标准思想探析

邓小平真理观在坚持马克思主义实践标准的基础上,把是否有利于促进生产力发展作为检验真理的科学标准,把是否有利于增进人民福祉作为检验真理的价值标准,并在此基础上提出了判断是非功过的＂三个有利于＂标准,从而实现了科学标准和价值标准的有机统一,实现了对马克思主义真理观关于真理检验标准思想的丰富和发展。     

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.     

4-component 2-D CFDFD method in analysis of lossy circular waveguide with fractal rough surface

In this paper, equivalent surface impedance boundary condition (ESIBC), which takes fractal parameters (D, G) into SIBC, is implemented in the 4-component 2-D compact finite difference frequency domain (2-D CFDFD) method to an- alyze the propagation characteristics of lossy circular waveguide with fractal rough surface based on Weierstrass-Mandelbrot (W-M) function. Fractal parameters’ effects on attenuation constant are presented in the 3 mm lossy circular waveguide, and the attenuation constants of the fi...     

Optical QPSK/16QAM modulation based on serial-parallel MZM scheme in radio-over-fiber system

A novel scheme of optical modulation in 40 GHz radio-over fiber (RoF) system is proposed. It generates optical QPSK/16QAM signals in a serial-parallel structure of Mach-Zehnder modulators (MZMs). The millimeter-wave is obtained with optical frequency multiplication (OFM). Furthermore, modulation on optical-wave is transferred onto millimeter-wave. It can be used to increase transmission capacity of millimeter-wave RoF systems.     

部分覆盖被动约束层阻尼板的动力特性分析

由薄板的基本方程出发,考虑粘弹性层与基板、约束层间的法向和切向相互作用力的影响,导出部分带状覆盖被动约束层阻尼（Passive Constrained Layer Damping,PCLD）板在两端简支另两端任意边界情况下的一阶常微分矩阵方程,方程的状态向量由4个独立的位移变量和内力变量组成,可方便地应用于位移和应力边界条件。同时,利用精细积分法和传递矩阵原理求解特征方程,计算了多种情况下PCLD板的固有频率和损耗因子。通过与参考文献结果相比,验证了本文方法的正确性。最后,分析了覆盖位置和覆盖率对结构减振特性的影响。     

《思想道德修养与法律基础》课程教学回眸

在高校《思想道德修养与法律基础》课程体系中,法律部分的教学内容非常重要,承担着大学生在校期间法律课堂教育的重要职责。基础课法律教育目标应以法律知识为基本,引导学生把握社会主义法律体系,培养学生树立社会主义法制理念,进而尊重法律、信仰法律。囿于教学时间所限,要达到这一教学目标,需要对"基础课"法律的教学方法进行积极探索:重视教师培训,提高教师素质;优化整合教学内容;建立集体备课和说课制度;有效利用基础课中的"精彩"资源。     

无线传感器网络节点的物理层设计

比较和分析了无线传感器网络节点物理层设计的各种无线通信技术、现有的成熟标准、重要的射频参数以及不同的处理器方案,对节点物理层设计的各个主要方面进行了较为全面的研究.介绍了无线传感器网络节点的一种实现,给出了相关的测试数据以及一种“单处理器双工作频率”的新节能策略.分析了符合传感器网络MAC算法中节点周期性侦听要求的节点寿命估算问题.指出无线传感器网络节点物理层设计的关键考虑因素为:RF启动时间(决定MAC协议可以实现的最佳节点睡眠时间比例和最小的退避时间颗粒)、RF载波频率和调制方式(决定射频收发功耗)以及处理器工作在2个频率的片上系统的总体功耗.     

最优二叉树在通信编码中的应用

字符出现的频率不同,在传输中采用非等长二进制编码传输会提高传输效率,在字符的出现频率已知前提下,采用最优二又正则树算法,可以得到最佳前缀码.