DOE large horizontal axis wind turbine development at NASA Lewis Research Center

Large wind turbine activities managed by NASA Lewis are reviewed. These activities include results from the first and second generation field machines (Mod-OA, -1, and -2), the status of the Department of Interior WTS-4 machine for which NASA is responsible for technical management, and the design phase of the third generation wind turbines (Mod-5)

Blade design and operating experience on the MOD-OA 200 kW wind turbine at Clayton, New Mexico

Two 60 foot long aluminum wind turbine blades were operated for over 3000 hours on the MOD-OA wind turbine. The first signs of blade structural damage were observed after 400 hours of operation. Details of the blade design, loads, cost, structural damage, and repair are discussed

Early operation experience on the ERDA/NASA 100 kW wind turbine

As part of the Energy Research and Development Administration (ERDA) wind energy program, NASA Lewis Research Center is testing an experimental 100-kW wind turbine. Rotor blade and drive shaft loads and tower deflection were measured during operation of the wind turbine at rated rpm. The blade loads measured are higher than anticipated. Preliminary results indicate that air flow blockage by the tower structure probably caused the high rotor blade bending moments

Approaches to the Land

Approaches to the Land is a collection of interrelated stories centered on a small Maine mill town. These stories have several recurrent narrators who are in many phases of moving – some come while others leave, etc. These stories have an immense interest in the identification of loss and hope, and this in turn plays heavily on the identities of the characters embodying the stories. As a whole, these stories capture the only way this author knew how to document his hometown

Negotiating anthropomorphism: reconsidering the onto-theological tradition in light of the bio-cultural study of religion

This dissertation is a work of multidisciplinary comparative philosophy of religion. It comprises a philosophical analysis and evaluation of Western traditions of philosophy and theology around the issue of religious anthropomorphism. More specifically, this study focuses on the tradition of Neoplatonic onto-theology in Western thought, and the divide in this tradition over the question of religious anthropomorphism and the divine nature. The dissertation frames this divide in terms of the distinction between an “anti-anthropomorphic” conception of the divine nature on the one hand, and an “attenuated anthropomorphic” conception of the divine nature on the other. Chapters two and three analyze key figures and texts from the “attenuated anthropomorphic” and “anti-anthropomorphic” traditions of Neoplatonic onto-theology. The fourth chapter considers a significant critique of this tradition as a whole leveled by Karl Barth and Martin Heidegger, among others, namely, that the onto-theological project as such constitutes a form of conceptual anthropomorphism. The fifth chapter provides an overview of the multidisciplinary scientific field known as the “bio-cultural study of religion,” which has yielded compelling evidence that anthropomorphic religious ideas are maturationally natural, culturally adaptive in certain past cultural contexts, and thus may reflect human cognitive limitations. The final chapter incorporates evidence from the BCSR (bio-cultural study of religion) in a comparative philosophical evaluation of the debates within and around the traditions of Neoplatonic onto-theology. The central philosophical thesis of this dissertation is that evidence from the BCSR negatively impacts—without decisively undercutting—the plausibility of the “attenuated anthropomorphic” tradition relative to the “anti-anthropomorphic” tradition. It does so by demonstrating that the anthropomorphic attributions inherent to the attenuated anthropomorphic view are undergirded by hypersensitive cognitive mechanisms, which are prone to misfiring. However, the BCSR also indicates several important weaknesses of the anti-anthropomorphic tradition of Neoplatonic onto-theology with regard to the social viability of this tradition. The BCSR also erodes the plausibility of the critique that onto-theology is itself a form of gross conceptual anthropomorphism. It does so by demonstrating that abstract onto-theological concepts lack the conceptual and cognitive liabilities inherent to the type of religious anthropomorphism advocated by Barth and Heidegger

Land Grant Application- Linscott, Theodore (Sanford)

Land grant application submitted to the Maine Land Office for Theodore Linscott for service in the Revolutionary War.https://digitalmaine.com/revolutionary_war_me_land_office/1574/thumbnail.jp

An analysis of public and feminist rhetoric for menstrual equity

In August of 2017, James Madison University installed free tampon and pad dispensers in major restrooms across its campus. This development was the result of the campaign Free the Tampon which used the themes of menstrual equity, public writing, and feminist rhetoric to achieve its outcome. Using writing and rhetoric, the campaign successfully engaged with 2000 students in passing a petition and in reaching out to key JMU decision makers. This project designs the origin, implementation, and effects of Free the Tampon on JMU’s campus and the ways in which concepts of menstrual equity informed the campaign

Tower and rotor blade vibration test results for a 100-kilowatt wind turbine

The predominant natural frequencies and mode shapes for the tower and the rotor blades of the ERDA-NASA 100-kW wind turbine were determined. The tests on the tower and the blades were conducted both before and after the rotor blades and the rotating machinery were installed on top of the tower. The tower and each blade were instrumented with an accelerometer and impacted by an instrumented mass. The tower and blade structure was analyzed by means of NASTRAN, and computed values agree with the test data

INVOLVEMENT OF LYSOSOMES IN SPONTANEOUS ATHEROGENESIS AND THE EFFECTS OF ESTROGENS

Alterations and accumulations of glycosaminoglycans (GAG) and lipids are prominent features in atherosclerotic lesions. Lysosomes are essential for cellular catabolism and are known to be altered in advanced atheroslcerotic lesions; however, their involvement in spontaneous atherogenesis or lesion progression is unclear. Estrogens have been reported to interact with lysosomes and are thought to provide a protective effect against development of atherosclerotic lesions. Analysis of lysosomes from sites predisposed to lesions, as well as consideration of the effects of estrogens on lysosomes at different stages of lesion development, may provide insight into biochemical mechanisms of spontaneous atherogenesis and lesion progression. Simultaneous analysis of lesion-resistant aortic segments provides a control for differentiating between aging processes and lesion development. Lysosomal fragility and marker enzyme activities, N-acetyl-B-hexosaminidase (NAHase) and acid phosphatase (APase), were measured in subcellular fractions from upper thoracic aortas (lesion-resistant areas) and celiac bifurcations (site predisposed to lesions) from atherosclerosis-susceptible White Carneau (WC) and atherosclerosis-resistant Show Racer (SR) pigeons at 1 day, 6 weeks, 6 months, and 6 years of age. Isolated arterial segments were also incubated with 17B-estradiol at physiological temperatures to determine the effect on lysosomal fragility and enzyme activities. Lysosomal enzyme activities and protein yields in both aortic sites from 6 week old WC pigeons were higher than in corresponding SR; thus, turnover rates of cellular components would appear higher in the WC than in the SR. However, the lysosomes from 6 week old WC aortas also appeared more fragile than lysosomes from SR aortas. Sine this is prior to appreciable GAG and lipid accumulation in WC celiac sites, excessive release of lysosomal enzymes and/or greater activities of these enzymes may cause alterations in connective tissue matrix and mitochondrial function which are associated with lipid accumulation during atherogenesis in the WC. The increased lysosomal fragility may also deplete the cell\u27s vacuole system of acid hydrolases therefore decreasing catablism of intracellular components and endocytosed material eg. lipid. Estrogen treatment increased APase activity and protein yield in the lysosomal fraction of 6 week old birds suggesting an increase in number of lysosomes which may aid cellular catabolism and explain the reported estrogen protection against lesion development in WC. Soluble NAHase activity increased in the WC celiac segment by 6 years of age and may explain the altered GAG profiles which occur during atherosclerotic lesion progression. Since the greater lysosomal enzyme activities, protein yields and membrane fragility in the WC occur at both tissues sites, a genetic mechanism is indicated. In the WC celiac segment higher lysosomal enzyme activities, protein yields and membrane fragility appear augmented by local factors, and may play a major role in spontaneous atherogenesis