Integrated structure electromagnetic optimization of large space antenna reflectors

The requirements for extremely precise and powerful large space antenna reflectors have motivated the development of a procedure for shape control of the reflector surface. A mathematical optimization procedure has been developed which improves antenna performance while minimizing necessary shape correction effort. In contrast to previous work which proposed controlling the rms distortion error of the surface thereby indirectly improving antenna performance, the current work includes electromagnetic (EM) performance calculations as an integral of the control procedure. The application of the procedure to a radiometer design with a tetrahedral truss backup structure demonstrates the potential for significant improvement. The results indicate the benefit of including EM performance calculations in procedures for shape control of large space antenna reflectors

Final Report: 1975 Appalachian Community Based Right to Read Programs

1975 Final Report on the Appalachian Community Based Right to Read Programs compiled by Sharon Moore and Charles J. Bailey in August of 1975

Impact of Ada and object-oriented design in the flight dynamics division at Goddard Space Flight Center

The Software Engineering Laboratory (SEL) is an organization sponsored by NASA/GSFC and created to investigate the effectiveness of software engineering technologies when applied to the development of applications software. The goals of the SEL are (1) to understand the software development process in the GSFC environment; (2) to measure the effects of various methodologies, tools, and models on this process; and (3) to identify and then to apply successful development practices. The activities, findings, and recommendations of the SEL are recorded in the Software Engineering Laboratory Series, a continuing series of reports that includes this document

Too Many Hurdles: Barriers to Receiving SNAP Put Childrens Health at Risk

Summary of Findings

Impact of Ada in the Flight Dynamics Division: Excitement and frustration

In 1985, NASA Goddard's Flight Dynamics Division (FDD) began investigating how the Ada language might apply to their software development projects. Although they began cautiously using Ada on only a few pilot projects, they expected that, if the Ada pilots showed promising results, they would fully transition their entire development organization from FORTRAN to Ada within 10 years. However, nearly 9 years later, the FDD still produces 80 percent of its software in FORTRAN, despite positive results on Ada projects. This paper reports preliminary results of an ongoing study, commissioned by the FDD, to quantify the impact of Ada in the FDD, to determine why Ada has not flourished, and to recommend future directions regarding Ada. Project trends in both languages are examined as are external factors and cultural issues that affected the infusion of this technology. This paper is the first public report on the Ada assessment study, which will conclude with a comprehensive final report in mid 1994

LIHEAP Stabilizes Family Housing and Protects Children's Health

The heating and cooling season presents special challenges for our nation's low-income families. With limited resources, many are challenged to manage the seasonal spike in utility expenses, facing decisions about whether to pay the rent, keep the lights and heat on, or buy enough groceries to get through the end of the month. We know that each of these decisions will have significant implications for the health of their youngest children. Unfortunately, these tough choices are all too common this winter as the nation experiences increases in energy prices, unusually cold weather, and continued high unemployment

Boost to SNAP Benefits Protected Young Children's Health

The Great Recession has taken a significant toll on America's children. In 2010, 25 percent of children under age six were living in poverty, up from 21 percent in 2007

Overcrowding and Frequent Moves Undermine Children's Health

Children need stability in their lives -- whether it is in their daily routines, the adults that care for them, or their housing. Recent economic conditions are putting families at risk, not just of outright homelessness but of being housing insecure (frequent moves, overcrowding, or doubling up with another family for economic reasons)

Analysis Protocol: Constructions of Mental Health and Problematic Alcohol Use Within UK’s Health and Welfare Policy

No abstract available

Temporary Labour Schemes, the New Avenue of Social Mobility: Case Study Vanuatu

Since the establishment of Australia’s Seasonal Worker Programme (SWP) in 2012, the number of workers from Vanuatu has increased significantly from 119 to 1533. It has been established that labour mobility improves livelihoods (Bailey 2014; Bedford 2013; Gibson and McKenzie 2014). This is evident throughout out villages and towns in Vanuatu, and is the reason thousands of ni-Vanuatu apply for the SWP every year. Using evidence-based research of ni-Vanuatu workers in the SWP, this paper argues that this strategic policy of encouraging development for Pacific island nations is effective, and, most significantly, that participating in labour migration provides workers with new avenues of social mobility.AusAI