石河子秋季初霜冻的灰色灾变预测

运用灰色系统理论的季节灾变预测方法，对石河子未来年份的初霜冻进行预测，并建立灰色季节灾变ＧＭ（１，１）预测模型，结果表明：１９９４年初霜冻的出现日期在１０月１７日以前，在１０月１０日左右，经验证与初霜冻实际出现时间１０月１０日完全一致。     

活性氯—过氧化氢氧化光泽精发光的研究

通过研究光泽精—H_2O_2和光泽精—ClO~-—H_2O_2化学发光反应的动力学曲线、吸收光谱以及化学发光光谱,提出了光泽精—ClO~-—H_2O_2化学发光反应的机理.还就温度和反应试剂的浓度对化学发光强度的影响进行了试验和讨论.     

树木模拟的粒子系统模型及其实现

以树木的静态造型为背景，提出一种基于骨架定制和粒子系统模型的树木模拟方法．内容包括基于粒子系统方法的树木形态结构描述与生成，基于粒子系统模型的树木生长模拟，以及由粒子系统法生成的树木模拟结果和进一步的工作设想等．     

轮胎行业科技术语的汉译研究——以德国大陆马牌轮胎公司翻译实践为例

着重研究轮胎行业科技术语的特征,包括专业术语数量多、普通词语专业化、专业交叉性术语多、广泛使用缩略语、连字符构成的术语多、术语意义引申多,同时结合实例(大陆马牌公司的翻译实践)探讨相应的翻译策略,包括对照术语表及查阅词典、利用平行文本、代入具体的文本和语境、增译。     

A new lysozyme from the eastern oyster (<Emphasis Type="Italic">Crassostrea virginica</Emphasis>) indicates adaptive evolution of <Emphasis Type="Italic">i</Emphasis>-type lysozymes

A new lysozyme (cv-lysozyme 2) with a MALDI molecular mass of 12 984.6 Da was purified from crystalline styles and digestive glands of eastern oysters (Crassostrea virginica) and its cDNA sequenced. Quantitative real time RT-PCR detected cv-lysozyme 2 gene expression primarily in digestive gland tissues, and in situ hybridization located cv-lysozyme 2 gene expression in basophil cells of digestive tubules. Cv-lysozyme 2 showed high amino acid sequence similarity to other bivalve mollusk lysozymes, including cv-lysozyme 1, a lysozyme recently purified from C. virginica plasma. Differences between cv-lysozyme 2 and cv-lysozyme 1 molecular characteristics, enzymatic properties, antibacterial activities, distribution in the oyster body and site of gene expression indicate that the main role of cv-lysozyme 2 is in digestion. While showing that a bivalve mollusk employs different lysozymes for different functions, findings in this study suggest adaptive evolution of i type lysozymes for nutrition. Received 30 August 2006; received after revision 14 October 2006; accepted 6 November 2006     

事物系统与和谐统一——关于进步发展问题的现实性探讨

和谐统一是构成真正系统的前提，也是系统得以进步发展的根据。社会真正的发展需要和谐，可持续和全面的发展更加需要和谐。和谐统一的关系不仅是利益平衡及平等互换的顺畅通道，而且是公正平等的象征，更是正义、博爱、民主和自由的发源地。简言之，和谐统一是实实在在的客观理性和社会可持续全面发展必须严格遵循的客观规律。     

差异统一中的事物系统与唯物辩证法范畴

唯物辩证法的基本范畴是马克思唯物辩证法理论的重要组成部分,对它的理解与把握是否真实准确,直接涉及到对唯物辩证法基本规律及其理论的准确理解与把握。现有哲学教科书关于辩证法基本范畴的论说方式就明显违背唯物辩证法的本质精神,也就是脱离现实以形而上学的片面思维来论说整体系统意义上的辩证法范畴。因此,有必要立足于现实对唯物辩证法基本范畴进行更为深入的探讨。     

Fluid particle accelerations in fully developed turbulence

The motion of fluid particles as they are pushed along erratic trajectories by fluctuating pressure gradients is fundamental to transport and mixing in turbulence. It is essential in cloud formation and atmospheric transport, processes in stirred chemical reactors and combustion systems, and in the industrial production of nanoparticles. The concept of particle trajectories has been used successfully to describe mixing and transport in turbulence, but issues of fundamental importance remain unresolved. One such issue is the Heisenberg-Yaglom prediction of fluid particle accelerations, based on the 1941 scaling theory of Kolmogorov. Here we report acceleration measurements using a detector adapted from high-energy physics to track particles in a laboratory water flow at Reynolds numbers up to 63,000. We find that, within experimental errors, Kolmogorov scaling of the acceleration variance is attained at high Reynolds numbers. Our data indicate that the acceleration is an extremely intermittent variable--particles are observed with accelerations of up to 1,500 times the acceleration of gravity (equivalent to 40 times the root mean square acceleration). We find that the acceleration data reflect the anisotropy of the large-scale flow at all Reynolds numbers studied.     

流化床燃烧稻草床料聚团及灰行为

流化床燃烧生物质发电是生物质能利用的重要技术,但床料聚团影响系统的稳定运行。该文使用石英砂流化床在760℃燃烧稻草,研究床料聚团机理和生物质灰行为。实验结果表明:床料发生了严重的聚团,床层流化状态明显恶化;碱金属在床料颗粒表面富集,在床料颗粒表面形成了约5μm厚的灰层。K2O-CaO-SiO2三元系相图可以有效解释床层中融化物的出现。聚团机理可概括为:由于稻草灰熔点低,燃烧的半焦表面变粘,粘结床料颗粒产生聚团;通过与细灰碰撞、融化的碱金属化合物冷凝,床料颗粒表面形成一层均匀的灰层并融化,当灰层足够厚时,床料颗粒通过有限的点粘结在一起,也会形成聚团。