Fluid slip ring transfers coolant to rotating equipment

Rotating fluid coupler, consisting of rotor and housing made of aluminum, that is concentric with electrical slip-ring assembly, transfers cooling fluid to instrumentation undergoing environmental tests on rotating platform. Rotating fluid coupler permits unlimited platform revolutions and eliminates danger of lines being pulled loose from supplies

Effects of Prescribed Burning on Breeding Bird Populations of the Daniel Boone National Forest Pioneer Weapons Area

A thesis presented to the faculty of the College of Science and Technology at Morehead State University in partial fulfillment of the requirements for the Degree of Master of Science by Jimmy Mains on January 3, 2006

Mediating Escape:Caribbean Conversations on In/Security, Tourism and Mobility

The Caribbean has figured prominently in narratives of security, mobility and transnational connections. Referred to as the 'Third Border' in US foreign policies, and inhabiting contradictory geopolitical spaces between North and South America, the region also negotiates narratives of inbetweenness and in/security in relation to more 'leisurely' pursuits, notably tourism. In this working paper, I begin an exploration of the ways in which representations of in/security and mobililty have framed media images of Caribbean tourism by revisiting the critically acclaimed documentary film, Life and Debt (2001). While geopolitics and tourism studies have largely tended to remain distinct areas of research, this particular film—and the conversations within and around it--illustrate the usefulness and urgent need to exhume the interdependency of both. I argue that media representations, Caribbean literature and policy decision-making are part of ongoing conversations that illustrate the limitations of over-generalised notions of time, security and space. Drawing on Benítez-Rojo’s (1992) concept of ‘repeating islands,’ I discuss the ways in which re-examining representations of mobility as part of a series of interconnected and multi-layered conversations, opens up new possibilities for interrogating the ways in which tourism narratives have reinforced, recreated, and stifled opportunities for diverse, secure and inclusive social spaces

Household of the Soul: Remodeling Exercises

...And then I want to bless this room and invite the Holy Spirit to come into it. Because what I\u27m going to talk about tonight is probably crucial to the rest of your Christian journey. And I want him to do the work...And what I want to give to you is the whole concept of forgiveness in the church. We often teach about the concept, but we don\u27t take people into the practice of it. And that\u27s what I want to do with you tonight. In order for you to do that, you\u27re going to have to understand how forgiveness works. And in order for you to understand how forgiveness works, you\u27re going to have to understand a very simple concept of how the mind functions

Room temperature alkali treatment of rice straw for enhanced enzymatic hydrolysis.

Due to the pollution of fossil fuels due to greenhouse emissions, researchers continue to search for alternative methods that allow for the clean production of energy, fuels, and polymer fibers. A method currently under investigation is the use of lignocellulosic biomass as a solution to current problems with energy and polymer fiber production. Through the process of pretreatment, possibilities for lignocellulosic biomass expand due to improved accessibility of the cellulose and hemicellulose which can be broken down via enzymatic hydrolysis into C5 and C6 sugars such as xylose and glucose. This study investigated the fermentation of the rice straw into fuel and fibers. Previous studies have tested varying pretreatment methods on rice straw, yet those studies require additional energy to obtain higher temperatures. This study demonstrates an alkaline pretreatment method at room temperature to reduce the energy usage of the process. This study found that the following pretreatment conditions: NaOH concentration of 2.5 weight%, treatment time of 6 hours, and biomass loading of 10 weight% yielded the greatest glucose recovery from rice straw. The enzymatic hydrolysis yielded ~75% glucose recovery and ~60% xylose recovery from the rice straw treated at the optimal conditions. The findings from this study are important because the results are a step towards providing low energy alternatives to the high temperature treatments and making a cost-effective method for industrial use

Representing Bounded Bodies

A review of Bodily Regimes: Italian Advertising under Fascism by Karen Pinkus. University of Minnesota Press, 1995

Avian use of Gmelina arborea plantations in southwestern Costa Rica

Tropical forests are disappearing at an accelerated rate due to increasing human development. In Costa Rica, reforestation of agricultural areas is occurring with plantations of an exotic, fast-growing hardwood tree, Gmelina arborea. Research on tropical plantations and their effect on local avifauna is severely lacking. Information is critically needed concerning whether or not these plantations can play a role in sustaining tropical avian communities. To help fill this need, we conducted 50-m point counts in May-July, 1998 and 1999 within stands of Gmelina, as well as within pastures and native forests. Avian community patterns were assessed according to different age classes and landscape contexts of Gmelina stands. In addition, community patterns of the plantations were compared with avian communities in stands of native forest and pastures. Habitat analyses within the plantations were conducted to identify stand features related to avian use. Mean abundance (A) per point differed across community types (Gmelina, pastures and native forest) but not amongst Gmelina age classes. In 1998, A was greater in pastures and native stands (13.4, 9.6 individuals per point, respectively) than in young (1 year; 5.6), intermediate (2-5 years; 3.6), or old (6-9 years; 4.1) Gmelina stands. In 1999, pastures (23.9) contained the greatest A above that found in any of the other forested areas, followed most closely by native stands (119). Both richness (R, number of species), and diversity (D, Shannon-Weaver) per point differed among the age classes of Gmelina and among the community types. Young stands contained a greater R (3.9) and D (1.0) than did the intermediate age class (1.06, 0.4) or the old age class (1.9,0.5) R and D in all Gmelina stands were less than R and D in pastures (7.2, 1.6) R and D in intermediate and old stands were less than R and D in native stands (4.7,1.3). In 1998, community similarity was strongest between young stands and pastures (42%) and Gmelina stands compared amongst themselves (37%-56%). Similarity of old Gmelina stands compared with native stands was weak (23%). Again in 1999, young stands and pastures showed the strongest similarity (50%). Similarity amongst Gmelina stand age classes was weaker than that in 1998 (26% - 48%). Similarity between old stands and native stands was slightly stronger (29%). In 1998 and 1999, abundance (A) in Gmelina stands adjacent to native forests (ADJ; 7.3, 9.3) did not differ from native stands (9.6, 11.9) in either year. In both years, pastures contained a greater A (13.4, 24.0) than any Gmelina stands (4.0 - 9.3). R was greatest in pastures (7.3) and lowest in Gmelina stands surrounded by other Gmelina (GMEL; 1.8) and Gmelina stands isolated from other forested areas (ISOL; 1.7). R in ADJ stands (3.4) did not differ from native stands (4.8). Mean D was greatest in pastures (1.6) and native stands (1.4) and lower in ADJ stands (1.0). GMEL (0.5) and ISOL (0.5) stands contained the lowest D. In 1998, community similarity was greatest between ADJ and native stands (55%) and amongst Gmelina stands (39% - 44%). In 1999, similarity was greatest between ADJ and native stands (42%), ISOL and native stands (41%) and amongst Gmelina stands (40% - 50%). Insectivorous birds predominated in all community types. Frugivorous species and individuals were more prevalent in forested sites and especially so in native forest stands. Granivorous and omnivorous species were more prevalent in the pastures than they were in the wooded sites. Habitat features were measured and correlated with the avian distribution patterns observed. Differences in vegetative structure amongst Gmelina stands and community types were variable within and across years. Stands where understory structure was greater tended to be more diverse. Implications for the role of plantations in avian conservation, such as stand vegetative features and landscape context, are discussed. Maintaining heterogeneity and vegetative structure within and around stands may help increase bird diversity. Establishing plantations in cleared areas with close proximity to native forests will provide additional forest cover, which may in turn enhance local bird diversity. The use of plantations in ecological restoration and regeneration of native forests is also presented

Microwave and millimeter-wave power generation in silicon carbide (SiC) IMPATT devices

There are two points that should be noted. First, in the thermal resistance calculations it is assumed that the device is operating at 773 K while the results of the room temperature simulations are used. This was done because there is not enough information to correctly predict the material parameters at 773 K. Since, in general, device performance degrades with increasing temperature, the cw results are perhaps a bit optimistic. Second, the electric field in these structures gets extremely high and there might be some possibility of tunneling. This was not incorporated into the simulation. Again, this could result in different device operating conditions