Potential flow theory and operation guide for the panel code PMARC

The theoretical basis for PMARC, a low-order potential-flow panel code for modeling complex three-dimensional geometries, is outlined. Several of the advanced features currently included in the code, such as internal flow modeling, a simple jet model, and a time-stepping wake model, are discussed in some detail. The code is written using adjustable size arrays so that it can be easily redimensioned for the size problem being solved and the computer hardware being used. An overview of the program input is presented, with a detailed description of the input available in the appendices. Finally, PMARC results for a generic wing/body configuration are compared with experimental data to demonstrate the accuracy of the code. The input file for this test case is given in the appendices

Dimensional scaling for impact cratering and perforation

This report summarizes the development of two physics-based scaling laws for describing crater depths and diameters caused by normal incidence impacts into aluminum and TFE Teflon. The report then describes equations for perforations in aluminum and TFE Teflon for normal impacts. Lastly, this report also studies the effects of non-normal incidence on cratering and perforation

Factors that influence treatment seeking expectations in response to infectious intestinal disease: original survey and multinomial regression

Background: Infectious intestinal disease affects 25% of the UK population annually; 1 in 50 affected people consult health professionals about their illness. Aims: We tested if anticipated treatment-seeking decisions for suspected infectious intestinal disease could be related to emotional response, tolerance of symptoms, or beliefs about the consequential benefits and harms of seeking treatment (or not). Methods: Questionnaire survey of adults living in the UK with statistical analysis of responses. A vignette was presented about a hypothetical gastrointestinal illness. People stated their emotional reactions, expected actions in response and beliefs about possible benefits or harms from seeking treatment (or not getting treatment). Multinomial regression looked for predictors of anticipated behaviour. Results: People were inclined to consult a GP when they believed that seeking treatment would be beneficial and that its absence would be harmful. Seeking treatment was less anticipated if the condition was expected to improve quickly. Respondents were also more likely to consult if they strongly disliked fever or headache, and/or if the illness made them feel anxious or angry. Treatment-seeking (or lack of it) was not linked to harms from treatment-seeking, other specific symptoms and emotional responses. Conclusion: It was possible to link anticipated treatment-seeking behaviour to specific factors: expected prognosis, perceived benefits of seeking treatment, some emotions and some specific symptoms. (C) 2019 The Authors. Published by Elsevier Ltd on behalf of King Saud Bin Abdulaziz University for Health Sciences

Hollywood Free Paper, October 19 1971

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Hollywood Free Paper, February 16 1971

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The Impact that Geomorphological Development of Managed Realignment Sites has on Fish Habitat

When coastal sites are breached and introduced to intertidal processes for flood defence and habitat creation purposes, the design primarily focuses on energy dissipation, the flora and the ‘air breathing fauna which are fluffy, feathered or rare’. Little attention is paid to the underwater habitat created which, for fish, can provide rich feeding grounds and refuge from larger predators, as well as acting as a nursery. This positive impact on the aquatic eco-system can, in turn, add to the local economy through improved commercial fishing and increased tourism (e.g. diving, recreational fishing, birdwatching) leading to improvements in human health and wellbeing. This paper presents a holistic overview of a large meso-tidal coastal managed realignment (MR) site, Medmerry MR, as it evolved during the first five years following site breaching. The data gained from bi-annual fish surveys is synthesised with the changes in geomorphology and hydrology to understand how MR design is impacting on fish colonisation in a changing habitat, providing lessons for future MR designs. Limited design catering for fish was incorporated into the Medmerry site. The borrow pits, where material was excavated to create the flood bunds, were designed as lagoon habitats to attract fish primarily as bird feed. Saloon type tidal flaps were installed to allow for the migratory passage of eels. Following site inundation, the resulting variations in salinity levels and depth across the site attracted a large variety of fish species, both estuarine and marine, with thirty species of fish recorded. During the earlier stages of development, the borrow pits near the breach quickly became used by fish. However, geomorphological changes meant that one of these borrow pits filled rapidly with sediment, morphing into an intertidal sand/mud flat three years after breach. After four years, the others remained flooded at low tide, but blockage of the single feed channel resulted in reduced water exchange and higher low-tide water levels. This impacted on the ingress and egress of fish on the tide and may have impacted temperature and salinity levels which also affect fish colonisation. This paper proposes features and actions that can be easily incorporated when designing new intertidal wetlands to help optimise fish habitat. Incorporation could potentially open up additional funding streams, given the benefits accruing to society

War in Afghanistan: Strategy, Military Operations, and Issues for Congress

The character of the war in Afghanistan evolved from a violent struggle against al Qaeda and its Taliban supporters to a multi-faceted counterinsurgency (COIN) effort. This report provides an examination of the war's background, context, and early execution; an analytical discussion of the COIN war to date, including strategy, organization, participation, and key facets of the effort including population security, advising the Afghan National Security Forces (ANSF), counter-narcotics, reconciliation, community outreach, and civil-military coordination; and an analysis of major strategic and operational issues and options that the 111th Congress may opt to consider

Hollywood Free Paper, January 19 1971

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EMPOWERMENT, INNOVATION, AND SERVICE: LAW SCHOOL PROGRAMS PROVIDE ACCESS TO JUSTICE AND INSTILL A COMMITMENT TO SERVE

Law schools around the country seek to fill the legal needs of their communities in ways that are both innovative and mutually beneficial to clients and students. This article describes five pro bono and clinical programs, at the University of Richmond School of Law, The Earle Mack School of Law at Drexel University, Catholic University Columbus School of Law, the Thomas Jefferson School of Law, and Vermont Law School, where law students, under the supervision of law professors or community professionals, provide assistance or legal representation to underserved and often marginalized populations needing help with family law problems, including parents accused of abuse and neglect, youth aging out of foster care, homeless families, survivors of domestic violence, homeless veterans with addiction problems, and female prisoners. To develop their programs, the five law schools from the outset collaborated with partners in the community, and they continue to do so as their programs expand and evolve. In addition to helping and empowering clients, these law schools are providing experiential learning opportunities that are transformative for their students. The authors hope that these programs will be instructive for law schools, other academic institutions, the legal community, and community organizations in developing creative collaborations to ensure better access to justice

Hollywood Free Paper, February 2 1971

https://digitalcommons.fuller.edu/hollywoodfreepaper/1033/thumbnail.jp