浅论宋代陶瓷造型

陶瓷器首先是为实际生活需要而“造物”的产品，同时又是按着审美规律寻求“造型”的艺术创造。每个时代的陶瓷造型都会有所不同。宋代是瓷的时代，此时陶瓷造型追求一种质朴静润，自然天成，趣味高雅的意境，其轮廓线条流畅，造型端庄。法度严谨，做工精细，优美的形象体现着宋人典雅朴素的气质风度和追求的美学境界。本文试图从宋代当时社会政治生活和生产、制瓷工艺的发展、审美观等几方面对宋代陶瓷造型的影响进行了初步的研究。     

浅析影响聚乙烯、聚丙烯与聚四氟乙烯粘接性能的因素

对聚乙烯（PE）、聚丙烯（PP）、聚四氟乙烯（PTFE）粘接性能的影响因素进行了综述，分析出其影响因素分别为：分子结构的规整度、分子的极性、溶解度参数、边界层的强弱、表面张力、相对分子质量以及胶粘剂的分解。     

基于分形理论的陶瓷材料显微组织模拟

利用VB开发工具,开发出基于二维和三维系统单相、复相陶瓷材料显微组织及其演变的仿真模拟软件,其主要包括三个模块:二维系统仿真模块、三维系统仿真模块和显微结构定量分析模块;可实现二维和三维的显微组织仿真图像输出,并且可方便地观察空间任意角度截面显微组织及其演变;应用分形理论、拓扑学等方法,对显微结构进行了定量分析,得到晶粒数及平均体积等参数与仿真时间MCS的变化关系。     

Phase holdup and liquid dispersion in gas-liquid-solid circulating fluidized beds

Axial and radial profiles of gas and solids holdups have been studied in agas-liquid-solid circulating fluidized bed at 140mm i.d..Experimental results indicate that the axialand radial profiles of gas and solids holdups are more uniform than those in a conventionalfluidized bed.Axial and radial liquid dispersion coefficients in the gas-liquid-solid circulating fluidizedbed are investigated for the first time.It is found that axial and radial liquid dispersioncoefficients increases with increaes in gas velocity and solids holdup.The liquid velocity has littleinfluence on the axial liquid dispersion coefficient,but would adversely affect the redial liquiddispersion coefficient.It can be concluded that the gas-liquid-solid circulating fluidized bed hasadvantages such as better interphase contact and lower liquid dispersion along the axial directionover the expanded bed.     

应用微扰理论（PHCT）诠释MH—55状态方程

用硬链微扰理论分析了ＭＨ－５５型状态方程。首次改进了该方程中的参考项，以ＣＳ硬球方程替代了原来的ｖａｎｄｅｒＷａａｌｓ斥力项，使改进后的ＭＨ－５５方程计算范围扩大到汽液两相。     

PARTICLE FLOW PATTERNS IN THE RISER AND DOWNER OF CIRCULATING FLUIDIZED BED

This paper presents an experimental study on the flow patterns of FCC particles in a 140 mm ID Circulating Fluidized Bed with concurrent upflow and downflow gas-solid suspension. Based on the distribution of local particle velocity and particle concentration measured by a Fiber-Optical Probe Laser Doppler Velocimeter and a Fiber Optical Probe System respectively, the different flow patterns of local particls concentration, local particle velocity, local particle fluctuating velocity and sectionally average particle velocity in concurrent upflow and downflow gas-solid system have been investigated. It is found that the particle flow in the concurrent downflow is much more uniform radially than that in the concurrent upflow riser. The investigation of flow patterns in different flow systems is of significance to the development of a new gas-solid reactor.     

Chattering free full-order sliding-mode control

In conventional sliding-mode control systems, the sliding-mode motion is of reduced order. Two main problems hindering the application of the sliding-mode control are the singularity in terminal sliding-mode control systems and the chattering in both the conventional linear sliding-mode and the terminal sliding-mode control systems. This paper proposes a chattering-free full-order terminal-sliding-mode control scheme. Since the derivatives of terms with fractional powers do not appear in the control law, the control singularities are avoided. A continuous control strategy is developed to achieve the chattering free sliding-mode control. During the ideal sliding-mode motion, the systems behave as a desirable full-order dynamics rather than a desirable reduced-order dynamics. A systematic design method of full-order sliding-mode control for nonlinear systems is presented, which allows both the chattering and singularity problems to be resolved. Simulations validate the proposed chattering free full-order sliding-mode control.     

碘掺杂的聚二茂铁基席夫碱的合成与性能研究

利用二茂铁甲醛与对、间、邻苯二胺在中性条件下缩合,得到了3种小分子二茂铁基席夫碱,利用Friedel-Crafts反应合成了一类新型的导电聚二茂铁基席夫碱,然后用碘对其进行掺杂,得到了系列电荷转移配合物.聚合物的电导率经碘掺杂后可提高几个数量级,同时均有紫外吸收功能;其中碘掺杂聚对二茂铁基席夫碱配合物的电导率最高,达3.17×10-4S/cm,而碘掺杂聚邻二茂铁基席夫碱配合物的磁增重另外2种配合物的2～3倍.     

材料化学工程科学内涵及方法初探:从介观尺度界面流体行为出发认知材料

作为一门新兴的交叉学科,材料化学工程科学内涵的进一步凝练和方法论的建立显得十分重要和迫切。介观尺度下界面流体的研究对于材料化学工程具有重要意义,材料化学工程的科学内涵在于通过认识介观尺度下界面处流体行为来"认知"材料,以期建立材料结构、性能(应用)与制备(生产)三者之间的关系。其中,弄清介观尺度下复杂作用和复杂结构对界面流体行为的影响,是"认知"材料的关键。分子模拟技术作为单因素遴选介观尺度各影响因素的有效手段,在实际应用中存在两大难点:如何同时获得界面流体反应和传递两个方面的信息;如何实现分子层面认识在材料应用层面的转化。基于此,初步讨论了材料化学工程研究方法的发展趋势。     

高分子金属配合物发光材料的制备技术进展

高分子金属配合物发光材料是一类很有价值的功能材料,评述了有关它的各种合成方法。以金属离子与含配位基团的聚合物进行反应,容易在高聚物之间形成交联,难以获得发光强度高的高分子配合物;使金属离子与高分子配体和小分子配体同时作用,可以得到荧光强度比较理想的产物,但反应难以定量控制;以小分子金属配合物单体与某些单体之间进行共聚合反应,也可获得荧光强度较高的高分子配合物,但聚合反应的空间位阻较大;通过两端都含有配位基团的刚性链的有机小分子配体直接与金属离子配合形成高分子金属配合物;以小分子金属配合物单体进行均聚或者将小分子金属配合物接枝到高聚物上也可以形成高分子金属配合物。