This article reports on the use of the concepts of residential satisfaction and safety in the evaluation of a specific multifamily public housing site and illustrates the potential of these concepts for providing critical information for the future planning and design of that site. The evaluation was primarily based on structured self-reports from residents about perceptions of their housing environment and their expressed satisfaction with that housing. Issues such as privacy, appearance, management, maintenance, safety from crime, resident similarity, and economic value of the residence were among those examined. Two types of analyses are reported: principal component analyses of over 200 items from the questionnaire and multiple regression analyses to determine which principal component factors were predictive of residents' satisfaction and safety. The results of the regression analyses clearly show the interdependence between the physical environment and the residents and managers of that environment. This information resulted in the formulation of general objectives and specific recommendations for change.

CD tO _D tO I ABSTRACTThe major objective of the NASA Aerospace Flight Battery Systems Program is to provide NASA with the policy and posture to increase and ensure the safety, performance and reliability of batteries for space power systems. The program plan has been modified in the ast year to reflectchanges in the agency's approach to artery related problems that are affecting flight programs.Primary attention in the Battery Program is being devoted to the development of an advanced nickel-cadmium cell design and the qualification of vendors to produce cells for flight programs.As part of a unified Battery Program, the development of a nickel-hydrogen standard and primary cell issues are also being pursued to provide high performance NASA Standards and space qualified state-of-the-artprimary cells. The resolution of issues is being addressed with the full participation of the aerospace battery community.

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The effect of temperature and pressure on the reaction of fluorine gas on solid iron samples was studied at various pressures up to 200 Torr over the temperature range of 225° to 525 °C. The reaction was found to follow the logarithmic rate law, and logarithmic rate constants are reported. The probable mechanism of film growth is movement of fluorine through defects in the fluoride film to the iron surface.