国内外城市经营理论探索

本文试图通过对国内外城市经营理论的研究，力图对其理论体系进行创新。     

Laryngeal Vibratory Behavior in Traditional Noh Singing

The phonation of Noh, a traditional Japanese style of singing, was investigated using electroglot-tographic and acoustical analyses. The dynamics of the laryngeal vibratory behaviors were analyzed for the singing voice of the Noh play compared with natural speech based on the Electroglottography (EGG) pa-rameters, EGG waveform, spectrum, and spectrogram. The result shows that Noh singing is characterized by low open quotient and high speed quotient. Three types of phonations are used in the singing with pressed, Vocal-Ventricular Mode (VVM), and growl voices. It was hypothesized that the period doubling ob-served in the EGG signal was reflective of VVM, which was caused by the phase difference in the vocal and ventricular fold oscillations, while the damped peak amplitude in every other cycle in the EGG signal was the result of the oscillations of the aryepiglottic folds at a frequency of half of the fundamental frequency. Sub-harmonics generated by the supraglottal oscillations add unique timbre to the sounds. The results suggest that the combination of phonation types is the key factor in generating their peculiar voice qualities.     

不断丰富和发展“毕节模式”内涵,充分发挥资源的有效组合

毕节试验区1988年正式成立20多年来逐步形成了统一战线服务科学发展的"毕节模式"。从历史的角度看,资源的有效组合是"毕节模式"形成的主要方式和手段;从现实的角度看,则是抓住机遇,继续注重资源的优化配置,为打造"同心工程"品牌而努力。历史和现实两个方面充分表明:毕节试验区在推进"毕节模式"的形成和发展过程中都特别注重资源的聚合效应问题,由此进一步丰富和发展了"毕节模式"的内涵。     

我国中小学典型作文教学模式述评

＂新课改＂以来,我国中小学作文教学改革出现了诸多模式：有基于＂语言.思维＂的作文教学模式,如观察作文、思维作文、分格作文;有基于＂文体.过程＂的作文教学模式,如文体作文、过程作文、快速作文;有基于＂动力.兴趣＂的作文教学模式,如情境作文、话题作文、活动作文;有基于＂做人.作文＂的作文教学模式,如绿色作文、生活作文、新概念作文,等等。我们既要按不同模式指导学生,又要突破模式＂程式化＂的套路,创新发展。     

Adiabatic bend transitions for large mode area fibres

Adiabatic bend transitions in large mode area multimode fibres were investigated theoretically using the beam propagation method. Adiabatic bend transducers preserve the power of guided light in the fundamental mode while guiding from one level of curvature to another for improved operation of mode filters and fibre amplifiers. A method is shown and used to find the optimised guidance path. Applications of these transducers include modal power back-converters, and guidance paths into and out of higher order mode filtering devices which work on bending.     

Interaction of torsion and lateral bending in aircraft nose landing gear shimmy

In this paper we consider the onset of shimmy oscillations of an aircraft nose landing gear. To this end we develop and study a mathematical model with torsional and lateral bending modes that are coupled through a wheel-mounted elastic tyre. The geometric effects of a positive rake angle are fully incorporated into the resulting five-dimensional ordinary differential equation model. A bifurcation analysis in terms of the forward velocity and the vertical force on the gear reveals routes to different types of shimmy oscillations. In particular, we find regions of stable torsional and stable lateral shimmy oscillations, as well as transient quasiperiodic shimmy where both modes are excited.     

试论高职院校中外合作办学形势下英语课程教学改革所面临的机遇与挑战

本文主要针对我校目前正在运行的中澳合作办学项目分析了高职院校学生的实际英语水平,从而论述了中外合作办学为英语课程教学改革所带来的机遇与挑战,对改革的模式和应对挑战的方法进行了初步探讨。     

Multiple pulses with broadband spectrum generation in passively mode-locked fiber ring laser incorporating a highly nonlinear fiber

Multiple pulses with broadband spectrum generation are experimentally obtained in passively mode-locked erbium-doped fiber ring lasers based on nonlinear polarization rotation, which is achieved by incorporating a length of highly nonlinear dispersion-shifted fiber in the laser cavity. The temporal and spectral dynamic behaviors of multipulse bunching states are demonstrated. The maximum spectral width and flatness are attained when the continuous-wave component is suppressed under appropriate polarization states and pump powers.     

印制电路工程专业卓越工程师培养探索

该文从分析卓越工程师培养计划的培养目标出发，探讨本科生印制电路工程专业工程师培养存在的问题，提出针对卓越计划修订印制电路教学大纲、编写实用教材、建立校外实习基地、校企联合培养等培养实用创新型印制电路工程人才的思路。     

高职院校职业英语教学模式之构建

在深入调查研究的基础上,对目前高职英语教学存在的问题进行剖析,并就如何转变教学观念、努力构建创造性职业英语课堂教学新模式提出了建议,以更好地落实"以服务为宗旨,就业为导向"的高等职业技术教育的办学方针.