关于二种上中值函数的关系

本文讨论了关于双参数算正半群{P_(st)}及其右预解式{R_(λs)}的r—上中值函数二者之间的关系，给出了一定条件下二者的等价性的结果     

21世纪的儒学

20世纪中,儒家遭到亘古未有之灾难.其内部原因是儒家的实际生活化特质和儒学的原发思想能力的丧失.儒学在21世纪的复活和复兴,要靠思想方式的复原和时中化,既拒绝西方中心论,又要在与当代西方哲理对话中再激活自身之长,批判高科技生存形态的非人-仁倾向,开发儒家六艺的哲理潜能,应对西方现代科学与民主的挑战,做出不失自家本性的调整,以求在全球化格局中的独立生存和适时发展.     

新疆普通高等院校维吾尔族大学生体育态度的分析研究

通过问卷调查，对维吾尔族大学生的体育态度进行了调查和分析。结果表明：当前维吾尔族大学生的体育态度基本处于良好水平，即体育态度比较积极，但对体育的认知程度有限，多数学生参与体育活动的时间和次数不够，应用体育技能进行自主锻炼的能力较差。通过此次研究，希望找出适合于维吾尔族大学生的体育教育、教学方法，力求为新疆普通高校的体育教育改革和21世纪的发展提供一些有益的参考依据。     

一种基于事件流处理引擎的企业服务总线平台

针对目前基于企业服务总线的系统难以实现企业实际应用所需的复合事件处理功能的问题,提出了一种基于事件流处理引擎的企业服务总线平台。在基于关系代数的复合事件处理模型的基础上,对面向复合事件处理的企业服务总线平台及事件流处理引擎进行了定义和描述,并给出了主要的复合事件处理算法及性能分析。在复合事件处理的性能方面对该平台和现有的基于企业服务总线的系统进行了仿真和比较,验证了该平台的有效性。     

海温垂直结构声特征提取的反演算法

针对自适应搜索算法在海温垂直结构冲激响应特征提取中运算速度慢、精度低的不足,引入共轭梯度反卷积算法CG(conjugate gradient method),得到海温垂直结构的冲激响应,利用层剥算法对所求得的冲激响应进行反演,得到海温垂直结构特征。结果表明:该算法能够克服单纯使用层剥算法而带来的反演不稳定现象,而且相比自适应搜索算法,反演速度快,反演精度高,具有一定的抗噪能力,并且声源信号的入射波形对反演效果影响较小,不同的迭代终止条件对反演结果也有较大的影响,在适当的范围内,减小迭代终止条件可以提高反演的精度,但是,如果迭代终止条件过小,则会引起虚假振荡,造成反演结果发散。     

Calculation of depth-dose distribution of intermediate energy heavy-ion beams

Based on the characteristics of the interactions between intermediate energy heavy-ion beam and target matter, a method to calculate the depth-dose distribution of heavy-ion beams with intermediate energy (10 -100 MeV/u) is presented. By comparing high energy beams where projectile fragmentation is overwhelm ing with lowenergies where energy straggling is the sole factor instead, a crescent energy spread with increasing depth and a simple fragmentation assumption were included for the depth-dose calculation of the intermediate energy beam. Rel ative depth-dose curves of carbon and oxygen ion beams with intermediate energie s were computed according to the method here. Comparisons between the calculated relative doses and measurements are shown. The calculated Bragg curves, especially the upstream and downstream Bragg peaks, agree with the measured data. Differences between the two results appear only around the peak regions because of th e limitations of the calculation and experimental conditions, but the calculated curves generally reproduce the measured data within the experimental errors. Th e reasons for the divergences were analyzed carefully and the magnitudes of the deviations are given.     

提高英语学习能力的四个因素分析

学习能力是学生不断地获取新知识、解决新问题所必须具备的能力。文章从教育学、心理学的角度 ,着重分析了学习能力形成的影响因素 ,指出知识、技能、智力和学习策略与学习能力的培养密切相关 ,学习能力是四种因素综合作用的结果。文中还对如何提高英语学习能力提出了建议。     

Modulation on flow field by solid particles in gas-solid two-phase turbulent free shear flows

In order to understand the interaction between fluid and particles, a two-way coupled three-dimensional mixing layer laden with particles at a Stokes number of 5 with different mass loadings is numerically studied. The pseudospectral method is used for the flow fluid and the Lagrangian approach is used to trace particles. The concept of computational particles is introduced to vary the mass loading of particles. The momentum coupling effect introduced by a particle is approximated to the point force. The simulation results show that the coherent structures are still dominant in the mixing layer, but the flow field is modulated by particles. The addition of the particles enhances the energy of all the Fourier modes with non-zero spanwise wavenumber, and the enhancement increases with the augment of the mass loading. A higher mass loading results in a lower energy at fundamental wavenumber and streamwise subharmonic Fourier mode of the fluid in the phase of Kelvin-Helmholtz rolling up, but for large-scale vortex structures pairing, the energy of the fluid increases as the mass loading increases. Similar trends can also be found in the developments of the turbulent kinetic energy and the momentum thickness.     

文化教学与《21世纪大学英语》

通过《21世纪大学英语》的课文实例，分别从文化与语言交际、文化与非语言交际、文化与教学模式、文化与翻译四个方面说明《21世纪大学英语》在选材上独特的文化气息，并结合大学英语教学大纲的要求，对《21世纪大学英语》在文化教学中的新突破作进一步的肯定评价。     

"21世纪大学英语网络课堂"课件的开发

信息技术的迅速发展和应用为大学英语教学提供了新的方法和手段，本文介绍了作者基于现代信息技术和建构主义理论开发的“21世纪大学英语网络课堂”，该课堂以现行大学英语教材为原本。旨在为教师教学提供丰富资源和为学生学习营造相对真实的语言环境。