Jiayun Zhao

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In this research we analyze the evolution of online social networks based on the “List” feature in Twitter. Lists are connected implicitly by virtue of sharing common users, and the users are also connected implicitly by being added to the same lists. We focus on the evolution of these implicit networks in Twitter with users and their lists,(More)
1569-190X/$ see front matter 2011 Elsevier B.V doi:10.1016/j.simpat.2011.07.005 ⇑ Corresponding author. Tel.: +1 520 626 9530. E-mail address: son@sie.arizona.edu (Y.-J. Son). To encourage the adoption of solar power as well as new technological improvements in solar industry, state and federal governments have employed various kinds of incentives over the(More)
Unlike fossil-fueled generation, solar energy resources are geographically distributed and highly intermittent, which makes their direct control extremely difficult and requires storage units as an additional concern. The goal of this research is to design and develop a flexible tool, which will allow us to obtain (1) an optimal capacity of an integrated(More)
Unlike fossil-fueled generation, solar energy resources are geographically distributed and highly intermittent, which makes their direct control difficult and requires storage units. The goal of this research is to develop a flexible capacity planning tool, which will allow us to obtain a most economical mixture of capacities from solar generation as well(More)
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