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This study compared and analyzed weighted network centrality measures supported by Opsahl's tnet and Lee's WNET, which are free softwares for weighted network analysis. Three node centrality measures including weighted degree, weighted closeness, and weighted betweenness are supported by tnet, and four node centrality measures including nearest neighbor centrality, mean association, mean profile association, triangle betweenness centrality are supported by WNET. An experimental analysis carried out on artificial network data showed tnet's high sensitiveness on linear transformations of link weights, however, WNET's centrality measures were insensitive to linear transformations. Seven centrality measures from both tools, tnet and WNET, were calculated on six real network datasets. The results showed the characteristics of weighted network centrality measures of tnet and WNET, and the relationships between them were also discussed.

The comparative effects of the fibrinolytic action, antioxidative activity, and tyrosinase inhibition of Cordyceps militaris powder and fermented Cordyceps militaris powders were investigated using several microscopic organisms. The nutritional components such as phenolic compounds, flavonoids, and minerals were also measured. The total phenolic compounds and flavonoid concentrations were highest in the Cordyceps militaris powder fermented by Aspergillus oryzae. Major minerals were K, Ca, Mg, and Zn. Native polyacrylamide gel electrophoresis (native-PAGE) analysis of the total protein patterns of Cordyceps militaris powder and fermented Cordyceps militaris powders revealed slight varietal differences. Fibrinolytic activity was highest in the Cordyceps militaris powder fermented by Bacillus subtilis and Aspergillus kawachii. The DPPH radical scavenging activity was slightly stronger in the powder fermented by Monascus purpureus; however, these samples all exhibited a relatively low activity when compared with butylated hydroxytoluene (BHT). Tyrosinase inhibition activity was stronger in the powder fermented by Aspergillus oryzae than in unfermented powder. These results may provide basic data for understanding the biological activities and chemical characteristics of Cordyceps militaris powder fermented by several microscopic organisms for the development of functional foods.

-Double split tee connection is a full strength-partial restrained connection that suitable for ordinary moment frame and special moment frame which demonstrates behavior characteristics depending on the stiffness ratio of columns and beams, changes in the geometric shape of the T-stub, number of fasteners and effect of panel zone. For the double split tee connection to ensure structurally safe behavior, it needs to exhibit sufficient strength, stiffness and ductile capacity. This study sought to investigate the effects of the moment-rotation angle relationship of the double split tee connection and to evaluate the initial rotational stiffness of the double split tee connection depending on changes in the geometric shape of the T-stub. To this end, two different double split tee connection specimens are experimented which designed to change geometric parameter values ( ′ ) of the T-stub, and a three-dimensional finite element analysis was performed.

This study identifies the characteristics of recent citation-based indicators for assessing a single paper in the context of their co-relationships. Five predefined indicators were examined with three variants of h-index which are convened in this study; the formers are PageRank, SCEAS Rank, CCI, f-value, and single paper h-index and the latters are hS-index, h1-index, and hS1-index. The correlation analysis and cluster analysis were performed to group the indicators by common characteristics, after which the indicators were calculated with the dataset from KSCI DB. The results show statistical evidence that distinguishes h-index type indicators from others. The characteristics of the indicators were verified with citation frequency factors using correlation analysis. Finally, the implications for applications and further studies are discussed.