Cloud cavitation on an oscillating hydrofoil

Cloud cavitation, often formed by the breakdown of a sheet or vortex cavity, is believed to be responsible for much of the noise and erosion damage that occurs under cavitating conditions. For this paper, cloud cavitation was produced through the periodic forcing of the flow by an oscillating hydrofoil. The present work examines the acoustic signal generated by the collapse of cloud cavitation, and compares the results to those obtained by studies of single travelling bubble cavitation. In addition, preliminary studies involving the use of air injection on the suction surface of the hydrofoil explore its mitigating effects on the cavitation noise

A summary of NASA data relative to external-store separation characteristics

Aerodynamic characteristics of external stores in carriage position and their effect on separation characteristics under various delivery condition

Preliminary calibration and test results from the National Transonic Facility

The National Transonic Facility (NTF) was operated to design condition of 120 million Reynolds number at a Mach number of 1.0. All systems were checked out except plenum isolation valves; modifications are being made to heaters on the actuators. Initial steady-state calibration indicates excellent steady flow characteristics. The first test of the Pathfinder 1 model indicated significant Reynolds number effects. Some effect of temperature on instrumentation were obtained. The cause of these effects is being evaluated

The collapse of a medical clearinghouse (and why such failures are rare)

The collapse of the clearinghouse for the entry-level gastroenterology labor market offers a unique opportunity to study how stable clearinghouses succeed and fail. To explore the reasons for the failure of the clearinghouse (and why failures of this kind of clearinghouse have been so rare), we conduct an experimental investigation of demand shocks of the kind that occurred in the gastroenterology market. We find that a reduction in demand for positions leads to the collapse of the match only when it is detectable by firms before being detected by workers (as in the unexpected shock that took place in 1996, which could be seen by firms in their reduced applicant pools). Simple demand and supply imbalances do not seem to interfere with the operation of the centralized match. Our results suggest an affirmative answer to the question posed by market participants about whether the clearinghouse could be successfully restarted, and that this would relieve some of the distress now reported in that market, by allowing it to operate later, at a more uniform time, and with more national scope.

The effect of emphasis upon the arrangement of attributive modifiers of nouns

Includes bibliographical references

Alien Registration- Mckinney, Frank E. (Limestone, Aroostook County)

https://digitalmaine.com/alien_docs/34232/thumbnail.jp

Barriers to Employment: A Substance Abuse Story

Whilst prior research is available on substance abuse and resources have been allocated from various governmental agencies and private organizations, the effects of substance abuse issues continue to persist within Appalachia. A constant variable in mitigating recidivism in substance abuse is employment. Moreover, the economy and culture of Appalachia is distinctly different with limited research in the field having focused on these issues. The purpose of this study is to identify barriers (e.g., criminal convictions, financial resources, and jobseeker KSAO (Knowledge, Skills, Abilities and Other Characteristics)) in obtaining sustainable employment that individuals may experience as a result of an association with substance abuse

Alien Registration- Mckinney, Charlie E. (Houlton, Aroostook County)

https://digitalmaine.com/alien_docs/34801/thumbnail.jp

Twelve Years a Terror: U.S. Impact in the 12-Year Civil War in El Salvador

This essay explores the impacts of the United States government and military in the civil war in El Salvador in a comprehensive historical study. Through the presence of monetary aid, a disregard for the human rights of people in El Salvador, and the presence of U.S. trained soldiers at the then School of Americas and the current Western Hemisphere Institute for Security Cooperation, the U.S. prolonged and augmented the negative effects of the Salvadoran Civil War