汉字种子混淆集的构建方法研究

汉字混淆集是错别字识别中的重要资源之一。在本项研究中,首先手工整理了11935个汉字的可能的错别字,然后以这些汉字为节点、"可错成"关系为边,将混淆集构造成一个错别字混淆集图。由于人工总结错别字具有很大的局限性,因此在种子错别字混淆集图的基础上,设计了自扩展算法和开源外部补充算法来对错别字混淆集图进行扩展,以发现新的错别字对。根据实验,新发现了15133组错别字对。经过随机抽样校对,准确率达到87.35%。     

Reaction-sintered porous mineral-based mullite ceramic membrane supports made from recycled materials

Bulk porous mullite supports for ceramic membranes were prepared directly using a mixture of industrial waste fly ash and bauxite by dry-pressing, followed by sintering between 1200 and 1550 °C. The effects of sintering temperature on the phase composition and shrinkage percent of porous mullite were studied. The XRD results indicate that secondary mullitization reaction took place above 1200 °C, and completed at 1450 °C. During sintering, the mixture samples first shrunk, then expanded abnormally between 1326 and 1477 °C, and finally shrunk again above 1477 °C. This unique volume self-expansion is ascribed to the secondary mullitization reaction between bauxite and fly ash. More especially, the micro-structural variations induced by this self-expansion sintering were verified by SEM, porosity, pore size distribution and nitrogen gas permeation flux. During self-expansion sintering, with increasing temperature, an abnormal increase in both open porosity and pore size is observed, which also results in the increase of nitrogen gas flux. The mineral-based mullite supports with increased open porosity were obtained. Furthermore, the sintered porous mullite membrane supports were characterized in terms of thermal expansion co-efficient and mechanical strength.     

Exploring romantic relationships on social networking sites using the self-expansion model

Several hypotheses were derived from the self-expansion model (Aron & Aron, 1986) concerning romantic relationships and social networking sites (SNSs). A sample of 276 participants responded to questions about their relationship history and SNS uses and a subset of those (N = 149) responded to additional questions about a current romantic partner. Results suggest that past self-expansion leaves a residue shown by more interests. This finding was moderated by overall Facebook use. Particular Facebook behaviors such as tagging one’s partner in status updates, appearing together in photographs, and listing similar interests on profiles are indicative of self-expansion processes typically found in romantic relationships.