Inverter ratio failure detector

A failure detector which detects the failure of a dc to ac inverter is disclosed. The inverter under failureless conditions is characterized by a known linear relationship of its input and output voltages and by a known linear relationship of its input and output currents. The detector includes circuitry which is responsive to the detector's input and output voltages and which provides a failure-indicating signal only when the monitored output voltage is less by a selected factor, than the expected output voltage for the monitored input voltage, based on the known voltages' relationship. Similarly, the detector includes circuitry which is responsive to the input and output currents and provides a failure-indicating signal only when the input current exceeds by a selected factor the expected input current for the monitored output current based on the known currents' relationship

Making Masculinity: The Performance of Gender Onstage and in the Streets

Drawing from dance historians and movement theorists, this paper analyzes the role movement plays in the construction and performance of gender. By deconstructing perceived stereotypes about masculinity, the argument breaks down the gender binary and its relation to movement. With research rooted in the works of Bill T. Jones and Joe Goode, the paper also looks at the intersection between masculinity and sexuality. Movement as a performance of gender is rooted in cultural and emotional contexts, heavily influenced by traditional gender roles and the persistence of homophobia. The fluidity of queer gender expression offers an alternative to the stereotypical display of masculinity, if only performers are allowed to push the boundaries of the gender binary

Study of high voltage solar array configurations with integrated power control electronics

Solar array electrical configurations for voltage regulatio

En Croix: A Choreographic Study of Translation

This thesis, entitled “En Croix,” began in Paris as a choreographic exploration of my struggle to reconcile my feminist and queer identity with my Roman Catholic upbringing. The strictness of my conservative religious background became an entry point to choreography, enabling me to create a solo with movements based on the Sign of the Cross—up, down, side, side. After returning to Los Angeles, I translated the choreography from the first solo into a second, breaking open the precise patterns and structures from solo one, and adding improvisation as a choreographic device; then, I completely abandoned the form of the two solos and generated a third solely through improvisation. While reflecting upon these dances, I began an ensemble piece for seven women. I identified the five most common movements from my three solos and presented those to my dancers as prompts, giving them the freedom to craft movement. What results is a choreographic study of translation, instigated by geography and unpacked through time and body knowledges. “En Croix” is situated in exploration and the spaces in which I have found and constructed my identity. The choreography both depends on and breaks free from the limitations I have experienced, the choices I have made, and my questions surrounding how bodies relate. Rooted in the tension between my need for individuality and my own comfort in ideologies that reinforce uniformity and sameness, this thesis renders resistance, solidarity, identification, and belonging through a choreographic process steeped in time, place, and experience

State Funding for Ports: Selected State Summaries and Links to Resources

The maritime industry in the United States, which plays a significant role in the economies of coastal states and the nation as a whole, involves a diverse variety of working waterfronts, ranging from large commercial ports that facilitate heavy industry to small-scale, traditional working waterfronts. Moreover, in many areas of the country, the economic and cultural identities of local communities depend almost exclusively on traditional working waterfronts. Unfortunately, land use and economic policy shocks, such as escalating coastal property values and taxes, increasing demands for non-water-dependent land uses, and complex and time-consuming permitting processes, currently threaten many working waterfronts. Since waterfront land is essentially a non-renewable resource, these pressures are likely to intensify, with more than half the U.S. population (153 million people) living in coastal zones. Additionally, the number of people 65 years and older living in coastal zones is expected to increase by 147% over the next 50 years (these people come to the coast for reasons other than economic reasons). Further compounding this pressure, waterfront infrastructure almost always amounts to a long-term capital investment, which demands stable planning and funding mechanisms. Thus, where state policies fail to make the appropriate financial resources available to waterfront communities, these communities face an uphill battle to remain viable – essentially playing third-fiddle to other ports in the state, ports in other states, and non-water-dependent land uses, such as luxury residential projects

Tactical Athletes: An Integrated Approach to Understanding and Enhancing the Health and Performance of Firefighters-in-Training

International Journal of Exercise Science 8(4): 341-357, 2015. In an effort to reduce the rates of firefighter fatality, injury, and workplace stress, there has been a call for research to advance knowledge of firefighting performance and injury prevention. Physical and psychological variables important to firefighter health and performance have been identified, yet the interrelated nature of these variables has been overlooked. Given the overlap between the physical and psychological demands of firefighting and sport, and given that an integrated framework has been used in the sport domain to guide athlete health and performance research and practice, firefighter organizations could benefit from adopting a sport-based, integrated model of firefighter training and performance management. Guided by the Meyer Athlete Performance Management Model (MAPM), the purposes of the current study were to: (a) describe the physical and psychological characteristics of firefighters-in-training (i.e., cadets and recruits), and (b) explore relationships between the physical and psychological variables associated with health and performance. Firefighters-in-training employed by a Midwestern area fire department in the United States (N = 34) completed a battery of physical and psychological assessments at the department’s Fire and Safety Academy building. Results of the current study revealed significant correlations between several of the physical and psychological characteristics of firefighters-in-training. These results, along with the multidimensional data set that was also established in the current study, provide preliminary evidence for the use of a sport-based integrated performance model such as the MAPM to guide training and performance research in firefighter populations

Power conditioning equipment for the thermoelectric outer planet spacecraft Quarterly technical report, 17 Apr. - 30 Jun. 1969

Design and development of power conditioning electronics for unmanned spacecraf

The effects of periodontal therapy on serum antibody (IgG) levels to plaque microorganisms *

The influence of periodontal therapy on serum antibody titers to selected periodontal disease-associated microorganisms was assessed in 23 patients having chronic inflammatory periodontal disease (CIPD), The immunoglobulin G (IgG) titers were dÉtÉrmined by the micro ELISA technique in serum samples obtained prior to treatment; following a hygienic phase which included scaling, root planing, and oral hygiene instruction; following surgical treatment; and one year and two years following hygienic phase (maintenance phase). Considerable individual variability existed in the magnitude of immune response to specific bacterial preparations. Significant reductions in the mean antibody titers were seen to A. viscosus. S. sanguis. F. nucleatum, S, spuligena, B. gingivalis. B. interme-dius. B. melaninogeniem, T. vincentii , and T denticola by the end of the second year of maintenance. There was no consistent response to Capnucytophaga. When individual patient responses were examined. 6 of the 23 were found to have elevated titers to at least one of the microorganisms in the interval between pretreatment and the end of the hygienic phase; however, in all but one case, the titers at the end of the second year of maintenance were below pretreatment levels. Antibody levels to bacteria such as S. sanguis were modified during therapy. This would indicate that immune responses to microbes not generally considered to be “periodontal pathogens” may be modified by adjuvant activity associated with subgingival plaque or changes in the environment of the sulcus and that subsequent changes in titer do not necessarily reflect a role of that microorganism in the disease process.Peer Reviewedhttp://deepblue.lib.umich.edu/bitstream/2027.42/75110/1/j.1600-051X.1988.tb02127.x.pd