An inverse method for the aerodynamic design of three-dimensional aircraft engine nacelles

A fast, efficient and user friendly inverse design system for 3-D nacelles was developed. The system is a product of a 2-D inverse design method originally developed at NASA-Langley and the CFL3D analysis code which was also developed at NASA-Langley and modified for nacelle analysis. The design system uses a predictor/corrector design approach in which an analysis code is used to calculate the flow field for an initial geometry, the geometry is then modified based on the difference between the calculated and target pressures. A detailed discussion of the design method, the process of linking it to the modified CFL3D solver and its extension to 3-D is presented. This is followed by a number of examples of the use of the design system for the design of both axisymmetric and 3-D nacelles

Immersion

http://deepblue.lib.umich.edu/bitstream/2027.42/108389/1/ecedar_1366658626.pd

Ojos de Rojo

This music clip is from the CD entitled Skittish. The band was directed by Dr. Robert Washut.https://scholarworks.uni.edu/jazzband/1090/thumbnail.jp

A Failure of Conscience: How Pakistan’s Devastating Floods Compare to America’s Experience During Katrina

Americans, seeing the destruction this summer from floods in Pakistan, cannot help but draw comparisons to the devastation in New Orleans during Hurricane Katrina. Both raised serious questions about governmental response to natural disasters, although the failings of both governments do not permit easy comparisons. Despite the differences between the two, Pakistan can learn from the U.S. response to Katrina: that with overcrowding in urban areas and limited resources, Pakistan will likely be unable to overcome the geographic challenges of evacuation. Instead, Pakistan must rely on flood prevention techniques, primarily in its cities, as its central line of defense

Examining the Impact of Collaboration between Probation, Victim Services, and Offender Treatment Providers on Domestic Violence Offender Outcomes

Domestic violence, also known as intimate partner violence (IPV), continues to be an issue in the United States, despite various intervention approaches and efforts to improve them over the past 40 years. Even if IPV offenders attend treatment and pursue rehabilitation, current efforts appear marginally effective in reducing its reoccurrence. The purpose of this ex-post facto, comparative, quantitative study was to determine whether there was a significant difference in outcomes between male offenders (N = 126) who attended treatment programs that participated in a tripartite collaboration with probation and victim services versus offenders (N = 126) who did not. Bronfenbrenner\u27s ecological systems theory provided the framework within which to examine the impact of such collaboration (independent variable). Outcomes were measured by recidivism (probation violations, re-arrests, violent re-offenses, and orders of protection), successful completion of probation, and successful completion of treatment (dependent variables). The information was coded and then analyzed in SPSS using chi-square analyses. The study showed statistical significance between the groups for successful completion of probation and treatment, re-arrest within two years of terminating from probation, and violent re-offenses. It did not show statistical significance regarding other dependent variables. This study is important for probation officers, treatment providers, victims, offenders, and their communities because it shows how the current system can improve