弘扬妈祖文化与促进澎湖“小三通”辽

简述妈祖信仰在澎湖的传播以及近年澎湖与大陆的妈祖文化交流。探讨澎湖在闽台文化、经贸文教等交流中的链接作用，提出澎湖在未来两岸关系发展中的定位观点，而弘扬妈祖文化，将有利于这些活动的开展。     

Separation of minor macromolecular constituents from multicomponent polymer systems by means of liquid chromatography under limiting conditions of enthalpic interactions

Minor (<1%) macromolecular constituents may significantly affect physical/utility properties of the multicomponent polymer systems. Separation and molecular characterization of the small amounts of macromolecular additives from the dominant polymer matrices represents an exacting analytical problem. Recently a series of unconventional liquid chromatographic methods was developed for separation of the constituents of polymer blends; their generic name is Liquid chromatography under limiting conditions of enthalpic interactions, LC LC. The LC LC procedures employ the difference in elution rate of the low molecular substances and the macromolecules within the column packed with porous particles. Small molecules permeate practically all pores of the packing and therefore they elute slowly. Polymer species are partially of fully pore excluded and in absence of enthalpic interactions they are rapidly transported along the column. The appropriately chosen low molecular substances promote interactions of macromolecules within the column. If eluted in front of sample, the interaction promoting low molecular substance may create a sort of slowly eluting barrier that is “impermeable” for the interacting macromolecules and efficiently decelerates their fast transport. The blocking action of a barrier differs for macromolecules of distinct nature, which elute from the column with a different rate to be mutually separated irrespectively of their molar mass. In present work, different approaches to the LC LC separations are compared from the point of view of their applicability to complex polymer systems, in which one constituent is present at very low concentration, and also in light of sample recovery. The practical examples are the two- and three-component polymer blends of polystyrenes, poly(methyl methacrylate)s and poly(vinyl acetate)s of different molar mass averages and distributions, as well as the diblock copolymers polystyrene-block-poly(methyl methacrylate) that contain their parent homopolymers.     

幂等右侧Quantale上的幂零矩阵

讨论幂等右侧Quantale上的幂零矩阵的若干性质，给出了幂等右侧Quantale上的矩阵为幂零矩阵的充要条件，得到了幂零矩阵的幂零指数的刻画定理。     

DNA小沟结合二脒:水分子的识别作用

采用分子动力学模拟了DB921-DNA复合物, 通过7 ns的模拟研究表明: DB921一端的氨基氮原子与一个水分子形成氢键, 同时, 水分子又与DNA的5位A碱基的氮原子形成一个氢键. 水分子在DB921与DNA小沟结合中起了桥连的作用, 使得直线型的芳香二脒化合物DB921通过水桥与DNA小沟结合, 水分子诱导DB921分子与DNA的小沟域构型相适应, 与DNA小沟域的AATTC碱基有较强的结合作用. 在分子水平上提供了DB921与双螺旋DNA相互作用的结构及复合物的动态变化情况, 指出水分子在DNA小沟结合二脒化合物中的识别作用, 为设计出更高生物活性的DNA小沟结合剂提供一定的理论依据.     

Linkability in iterated line graphs

We prove that for every graph H with the minimum degree δ?5, the third iterated line graph L³(H) of H contains as a minor. Using this fact we prove that if G is a connected graph distinct from a path, then there is a number k_G such that for every i?k_G the i-iterated line graph of G is -linked. Since the degree of Lⁱ(G) is even, the result is best possible.     

Equivalence of operations with respect to discriminator clones

For each clone C on a set A there is an associated equivalence relation, called C-equivalence, on the set of all operations on A, which relates two operations iff each one is a substitution instance of the other using operations from C. In this paper we prove that if C is a discriminator clone on a finite set, then there are only finitely many C-equivalence classes. Moreover, we show that the smallest discriminator clone is minimal with respect to this finiteness property. For discriminator clones of Boolean functions we explicitly describe the associated equivalence relations.     

新型灌浆套筒凸肋深度力学性能研究

良好灌浆套筒的力学性能是保证装配式结构整体性的关键。论文结合粘结滑移理论，通过对套筒凸肋深度轴向应力、各肋Mises应力、灌浆料第三主应力及套筒极限应力等参数的分析，着重研究新型灌浆套筒凸肋深度对其力学性能的影响。结果表明：套筒凸肋深度与其极限应力有着明显的对应关系，套筒凸肋深度增加，套筒极限应力逐渐增大；套筒凸肋深度与位移有着明显对应关系，套筒凸肋深度增加，其位移变化较缓，但总体位移相差不大；套筒凸肋深度与灌浆料第三主应力有明显关系，套筒在一定凸肋深度范围内，其内部凸肋深度的增加有利于提高灌浆套筒整体力学性能，当凸肋深度超过一定范围后，试件承载力有所下降。