翻译切不可想当然

2008年第10期《英语知识》中From Prison to Ph．D．一文中汉语译文有值得商榷之处,本文予以指出并与大家探讨．     

A 3D numerical simulation of laser-induced incandescence of soot particles in coal combustion products

Laser-induced incandescence （LII） has received increasing attention as a potentially powerful technique for in-situ measuring of the volume fraction and primary size of soot particles in combustion systems. In this study, a 3D Monte Carlo simulation combined with a Mie equation was developed to analyze the influence of spectral absorption and scattering on the measured LII flux emitted by soot particles. This paper represents a first attempt to analyze soot measurement using the LII technique in coal combustion products. The combustion products of gases （CO2, N2）, soot, and fly-ash particles, present between the location of laser-excited soot and the LII flux receiver. The simulation results indicated that an almost Beer-Lambert exponential decrease in LII flux occurred with an increase in the volume fraction of soot particles, while a nearly linear decrease occurred with an increase in the volume fraction of fly-ash particles. The results also showed that scattering effects of both soot and fly-ash particles on the LII flux could be neglected. Compared with the absorption of gases, a decrease of 20% of LII flux was observed with soot particles, and a decrease of 10% with fly-ash particles.     

New method of improving parts accuracy by adding heat balance support in selective laser sintering

In order to improve parts accuracy, a method of adding heat balance support （HBS） was proposed, and the detailed algorithm for generating HBS was developed. A number of experiments and a comparison between similar softwares, showed that the algorithm is efficient and feasible. Moreover, different features of riBS were studied for different kinds of materials, such as PS and nylon. The research findings indicate that automatically adding HBS can significantly improve the accuracy of the parts, and that the algorithm for generating HBS is efficient and precise.     

基于3G的泛在学习环境研究

随着3G移动通讯技术的高速发展,泛在学习呈现出了广阔的发展前景。从3G移动通信技术的特点和泛在计算的概念入手,在阐述泛在学习的内涵与特点的基础上,结合3G移动通讯技术,提出了基于3G的泛在学习环境模型。     

记录成长的烦恼——《哈克贝利·费恩历险记》与《麦田里的守望者》的比读

《哈克贝利.费恩历险记》与《麦田里的守望者》分别是马克.吐温和塞林格的代表作。试从这两部作品的主题、叙事风格、人物的典型意义、创作背景及其现实意义几个方面来比较分析两部作品的异同,目的是为了通过比较揭示两部作品各自所展现的独特艺术魅力,使读者能更好地品读两部作品的文学价值。     

Web3D技术在现代教学中的应用

针对传统教学媒体,提出了在现代教学中的应用Web3D技术的方法,介绍了Web3D技术的基本概念及在教学中的应用.该技术在未来教学领域中具有重要的现实意义.     

二维动画片《彩虹森林》的设计与制作

在三维动画逐渐占据动画主导地位的时代,有着深远历史的二维动画依然充满着活力．动画片《彩虹森林》是一部完全运用二维方式制作的动画片,二维动画由于其特有的制作方式能够表现出一些三维动画所无法企及的艺术效果．     

基于工作过程的3G移动应用开发专业课程体系的构建

从专业人才培养目标、课程体系和实践教学体系建设等方面,探讨构建具有地域经济特色、以工作过程为导向的高职院校3G移动应用开发专业课程体系．通过层次设计构建知识、能力和素质一体的理实协作教学体系架构．     

不同强度跑台运动对大鼠学习记忆能力及海马CA3区突触超微结构的影响

探讨不同强度跑台运动对大鼠学习记忆能力及海马CA3区超微结构的影响。40只Wister大鼠随机被分为4组(对照组、低强度运动组、中强度运动组、高强度运动组,各10只),按各自强度运动60 d后,通过一次性被动回避反应实验,逐只测量其步入潜伏期的时间(STL);后每组任选5只大鼠,取右侧海马CA3区按常规方法制作超薄切片,60K倍透射电镜观察并拍照,Motic Images Advanced 3.1软件测量相关突触界面结构。结果表明:低强度运动组大鼠,电击后24 h步入潜伏期的时间显著延长(P0.05),海马CA3区突触后膜致密物质非常显著增厚(P0.01)。突触界面呈现平直型、正向弯曲型和负向弯曲型三种,以平直型为主。由此可见,低等强度运动可增强记忆能力,并影响海马CA3区神经元突触结构发生可塑性变化,突触后膜致密物质厚度与记忆能力呈正相关。     

掺杂Al2O3对BSTO/MgO铁电陶瓷的影响

在钛酸锶钡(BSTO)与质量分数为55%的MgO混合的基础上,进行了Al2O3掺杂的系统研究.随Al2O3掺入量的增加,BSTO/MgO材料的介电常数减小明显,损耗先减少后增多,调谐性先增大后减小,但过量的Al2O3掺杂使得材料的调谐性降低.当Al2O3掺杂量为mol(Al2O3)=0.5%时,介电损耗达到最小,为2.0×10-3(10KHz),介电常数调谐性达14.1%(4kV/mm).利用电介质理论分析了Al2O3对BST/MgO材料介电性质的改性机理.