Semigroup Well-posedness of A Linearized, Compressible Fluid with An Elastic Boundary

We address semigroup well-posedness of the fluid-structure interaction of a linearized compressible, viscous fluid and an elastic plate (in the absence of rotational inertia). Unlike existing work in the literature, we linearize the compressible Navier-Stokes equations about an arbitrary state (assuming the fluid is barotropic), and so the fluid PDE component of the interaction will generally include a nontrivial ambient flow profile $\mathbf{U}$. The appearance of this term introduces new challenges at the level of the stationary problem. In addition, the boundary of the fluid domain is unavoidably Lipschitz, and so the well-posedness argument takes into account the technical issues associated with obtaining necessary boundary trace and elliptic regularity estimates. Much of the previous work on flow-plate models was done via Galerkin-type constructions after obtaining good a priori estimates on solutions (specifically \cite {Chu2013-comp}---the work most pertinent to ours here); in contrast, we adopt here a Lumer-Phillips approach, with a view of associating solutions of the fluid-structure dynamics with a $C_{0}$-semigroup $\left\{ e^{ \mathcal{A}t}\right\} _{t\geq 0}$ on the natural finite energy space of initial data. So, given this approach, the major challenge in our work becomes establishing of the maximality of the operator $\mathcal{A}$ which models the fluid-structure dynamics. In sum: our main result is semigroup well-posedness for the fully coupled fluid-structure dynamics, under the assumption that the ambient flow field $\mathbf{U}\in \mathbf{H}^{3}(\mathcal{O})$ has zero normal component trace on the boundary (a standard assumption with respect to the literature). In the final sections we address well-posedness of the system in the presence of the von Karman plate nonlinearity, as well as the stationary problem associated with the dynamics.Comment: 1 figur

A Prototype Toolkit For Evaluating Indoor Environmental Quality In Commercial Buildings

Measurement of building environmental parameters is often complex, expensive, and not easily proceduralized in a manner that covers all commercial buildings. Evaluating building indoor environmental quality performance is therefore not standard practice. This project developed a prototype toolkit that addressed existing barriers to widespread indoor environmental quality performance evaluation. A toolkit with both hardware and software elements was designed for practitioners around the indoor environmental quality requirements of the American Society of Heating, Refrigeration and Air Conditioning Engineers / Chartered Institution of Building Services / United States Green Building Council Performance Measurement Protocols. This unique toolkit was built on a wireless mesh network with a web-based data collection, analysis, and reporting application. The toolkit provided a fast, robust deployment of sensors, real-time data analysis, Performance Measurement Protocol-based analysis methods and a scorecard and report generation tools. A web-enabled Geographic Information System-based metadata collection system also reduced field-study deployment time. The toolkit was evaluated through three case studies, which were discussed in this report

From Glyndebourne to Glastonbury:The Impact of British Music Festivals

Festivals are at the heart of British music and at the heart of the British music industry. They form an essential part of the worlds of rock, classical, folk and jazz, forming regularly occurring pivot points around which musicians, audiences, and festival organisers plan their lives. Funded by the Arts and Humanities Research Council, the purpose of this report is to chart and critically examine available writing about the impact of British music festivals, drawing on both academic and ‘grey’/cultural policy literature in the field. The review presents research findings under the headings of: •economy and charity; •politics and power; •temporality and transformation; •creativity: music and musicians; •place-making and tourism; •mediation and discourse; •health and well-being; and •environment: local and global. It concludes with observations on the impact of academic research on festivals as well as a set of recommendations for future research

The impact of (jazz) festivals:An Arts and Humanities Research Council-funded research report

Festivals are an essential part of the jazz world, forming regularly occurring pivot points around which jazz musicians, audiences and organizers plan their lives. Funded by the UK’s Arts and Humanities Research Council, the purpose of this report is to chart and critically examine available writing about the impact of jazz festivals, drawing on both academic and 'grey'/cultural policy literature in the field. The review presents research findings under the headings of economic impact; socio-political impact; temporal impact and intensification and transformation of experience; creative impact--music and musicians; discovery and audience development; place-making; the mediation of jazz festivals; and environmental impact. It concludes with a set of recommendations for future research, which identifes gaps in the feld. To accompany the article, a 100-entry 40,000-word annotated bibliography has also been produced, which is freely accessible online

Music From Out There, In Here:25 Years of the London Jazz Festival

Webster and McKay have pieced together a fascinating jigsaw puzzle of archival material, interviews, and stories from musicians, festival staff and fans alike. Including many evocative images, the book weaves together the story of the festival wit the history of its home city, London, touching on broader social topics such as gender, race, politics, and the search for the meaning of jazz. They also trace the forgotten history of London as a vibrant city of jazz festivals going as far back as the 1940s

Nā Pua Makani Wind Farm: The Shifting Winds of Renewable Development in Hawaiʻi

In 2015, Hawaiʻi set the most ambitious renewable energy portfolio goal in the nation by vowing to reach 100% renewable energy by 2045. Since then, many renewable energy development projects in Hawaiʻi have been met with strong community opposition, including the Nā Pua Makani wind farm (NPM) in Kahuku. The aim of this project is to analyze the process timeline of NPM to identify factors in the development process that contributed to organized protest, and to offer recommendations for improving the process. In order to get a full picture of the events throughout the Nā Pua Makani project’s timeline, my research involved analysis of documents from the Public Utilities Commission and interviews with the stakeholders including residents of the impacted communities, legal representatives, and representatives from the final developer. Throughout my research, I found that poor community engagement was a key component of the conflict surrounding NPM. Subsequently, I use a development framework outlined in the United Nations’ Free, Prior, and Informed Consent (FPIC) Manual to identify how NPM fell short in their community engagement process, and recommend that the Hawaiian Electric Company include language within their request for proposals requiring a signed consent agreement between the developer and host community. Additionally, I review how NPM has changed the renewable development landscape in Hawaiʻi to date, and explore development options alternative to utility-scale projects that may have less impact on environmental justice communities

George Oliver Webster Correspondence

Entries include brief biographical information, a typed letter introducing Webster to the Maine Author collection, and a typed letter from the Maine State Library on receipt of his historical novel Pentagoet for the Maine Author Collection with notice that a description of the book would appear in the Maine Library Association Bulletin