一种新型高效的焊接技术——表面张力过渡技术

介绍了一种新型焊接技术———表面张力过渡。分析了它与通常CO2 焊接工艺的不同之处 ,论述了这一技术的优点和不足。最后对其应用领域的前景进行了探讨。     

多单元同步传动系统的控制方法和设计方法

总结多单元同步传动的控制方式和实现方法,建立系统的数学模型,运用自动控制的基本理论对系统参数进行最佳工程设计.     

磁流体密封机理

1 Introduction Sealing with magnetic fluids is one of the most suc-cessful applications of magnetic fluids .This techniquewas first put forward in the 1970’s .It overcomes thedisadvantages in traditional sealing. Rotational leakage has al ways been a pro…     

新批评视野中的玄学派诗歌——以《致他的娇羞的女友》为例

新批评理论以文本为关注焦点,采用细读式方法论,长于诗歌分析。由于它与玄学派诗歌产生的社会历史语境类似,使得玄学派诗歌与新批评思维叠加在一起。在新批评的视野中玄学派诗歌富含张力与反讽、意象与曲喻、戏剧性与伪逻辑等特点,这在《致他的娇羞的女友》中得到全面体现。     

从民歌的特质看当今我国民歌的发展

民歌的艺术特色主要有三点，即基本的音乐表现方法、典型的音乐性格以及音乐形式构成要素。当今，我国的民歌不仅不会消失，而且会呈现多样化的表现手法，并焕发出新的生机。     

李清照咏梅词的审美特色

李清照现存六首咏梅词，富于“审美张力”是这六首咏梅词共同的审美特色，这一审美特色具体表现于写境抒情、艺术风格和词意结构等三个方面；通过探讨李清照咏梅词的“审美张力”在这三个方面的具体表现，可以见出无论是李清照早期还是南渡后的咏梅词中，梅花与词人，梅品与人品，梅心与词心，都有惊人的同构性。     

A New Elasticity and Finite Element Formulation for Different Young‘s Modulus When Tenison and Compression Loadings

This paper presents a new elasticity and finite element formulation for different Young‘s modulus when tension and compression loadings in anisotropy meida.The case studies,such as anisotropy and isotropy,were invertigated.A numerical example was shown to find out the changes of neutral axis at the pure bending beams.     

论信仰的社会文化内蕴--"马克思主义信仰学"论二

信仰的本质是人类基于实践基础的一种自我超越。它虽然是一种精神现象和精神活动,但却并不是精神冥思的产物,而是纷繁复杂的社会生活在人的精神世界的内化。因而它具有丰厚的社会文化内蕴,即蕴涵并展示着个人与社会、现实与理想、非理性与理性等诸多关系对子。其结构呈现为诸多关系对子的适度张力状态。这种张力使信仰这种独特的超越成为一种人的植根于现实的终极关怀。     

《秋颂》中的张力——新批评观中好诗的质素

新批评理论对现代诗歌的批评产生了深刻的影响。以新批评派所倡导的“细读法”对济慈的《秋颂》进行解读，通过分析诗中的悖论、反讽、张力等质素，从而体会其怎样通过客观意象的排列消解诗中的张力而达到和谐统一。     

Expansion of spherical cavity of strain-softening materials with different elastic moduli of tension and compression

An expansion theory of spherical cavities in strain-softening materials with different moduli of tension and com-pression was presented. For geomaterials,two controlling parameters were introduced to take into account the different moduli and strain-softening properties. By means of elastic theory with different moduli and stress-softening models,general solutions cal-culating Tresca and Mohr-Coulomb materials' stress and displacement fields of expansion of spherical cavity were derived. The effects caused by different elastic moduli in tensile and compression and strain-softening rates on stress and displacement fields and development of plastic zone of expansion of cavity were analyzed. The results show that the ultimate expansion pressure,stress and displacement fields and development of plastic zone vary with the different elastic moduli and strain-softening prop-erties. If classical elastic theory is adopted and strain-softening properties are neglected,rather large errors may be the result.