ABSTRACT. The main aims of this study were: (1) to examine how nonprofit organizations utilize their websites as a public relations tool, especially for media relations, donor relations, volunteer relations and their interactive communication features and (2) to ascertain whether nonprofit organizations' revenues are positively correlated with the presence and prominence of their media relations, donor relations, and volunteerrelations efforts online. To accomplish this, a content analysis of 98 websites was conducted from the list of the NPT Top 100. Statistical analysis revealed that there were no significant relationships between revenues and usage of the web by nonprofit organizations for media relations, donor relations and volunteer relations. This study found that although most of the top 100 nonprofit organizations have website content for online media relations, the majority had yet to furnish journalist-friendly web content because clearly labeled online press rooms dedicated to journalists were infrequent. We also found that donors are treated as the most important stakeholders given the frequency of interactive features and prominence of content dedicated on the websites to donors in comparison with journalists and volunteers. Finally, the conceptual and practical implications of the investigation are discussed.

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The purpose of this study is designing, applying, and assessing the picture book-oriented infant culture and art education lectures with flipped learning. The subjects of this study are twenty-eight freshmen who major in Early Childhood Education in T University, Pusan, South Korea. The lectures based on flipped learning were demonstrated for two hours, once a week, for ten weeks among a total fifteen weeks. The assessment of the lectures was analyzed based on survey and reflective journal. According to the survey result, video lectures' convenience was evaluated the highest, and the relationship between the usefulness of prior learning and the entire class was positively evaluated. Analysis of reflective journals showed four different categorization results ; Effective learning, unconstained learning, difficulty of prior learning, and difficulty of communication. This study provides meaningful implications for the development of various subjects applying flipped learning by presenting specific plans for the design and application of flipped learning-based classes in early childhood education subjects.

The intrinsic improvement of fuel cell stack design is to minimize the volume and weight of fuel cell and is to maximize energy density. However, the bulky and massive stack is one of the main factors to undermine the chances to realize the higher energy density. Though the using bolts and graphite bipolar plates are common in a conventional stack, it may obstruct realizing a light weight and thinner stack. In this paper, the graphite bipolar plate is substituted with the flexible PCB and lightweight polycarbonate plates are used to separate the reactant gas. By using the plastic material as a separator, an innovative boltless stack assembly is originally possible through an ultrasonic welding. Instead of the bolt, the sharp edge of one plate melts and adjacent cell plates are bonded by the ultrasonic welding, which realizes the boltless and light weight stack assembly.

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