Abstract: The features of the geological backgrounds of the civil engineering students of National Quemoy University Taiwan, create a morphology similar to that of a melting pot. Since other universities have limited social interactions with the students in Kinmen, the social life of the students can only be confined on the island so that the students form an ideal isolated population for social network study. This research explores the relationship between the academic performances and the social behaviors as well as the social and learning networks of 179 students of the Department of Civil and Engineering Management at the university. What is found is that the social networks do not become fragmented, but the number of cliques decreases for senior classes. This research depicts that living together during freshman year can be the most decisive factor, followed by participating in clubs and genders, in shaping students’ social lives within the next 3 years. The highly consistent performances i

• Publication Date: 11-Oct-2015
• DOI: 10.15224/978-1-63248-065-1-36
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Abstract: Macro-roughness elements superimposed on the original river bed are increasingly being applied as a restoration measure in natural streams. Under these conditions, due to the interaction of these large boulders with the flow, the classic resistance formulae are no longer valid, preventing their use for design purposes. The paper shows the results of an experimental study conducted on a rough channel with the insertion of protruding boulders, under different hydraulic and geometric conditions, for a total of 66 tests. The effects on flow resistance of channel slope, discharge, boulder size, density and arrangement were investigated in order to obtain useful information (in terms of boulder arrangement, concentration and dimension) for designing bed stabilization systems in natural streams.

• Publication Date: 11-Oct-2015
• DOI: 10.15224/978-1-63248-065-1-37
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