Addressing cultural, social and environmental sustainability in architecture. The approach of five contemporary Australian architects

Regionalist architecture offers a promising and conscientious response to the present scenario of growing trend toward cultural, social and technical globalization. It has a great potential to preserve local cultural identities, despite the spread of global culture, to define possible relationships between construction and natural, cultural, political, economic and social factors, to combine traditional approaches and technical skills creatively and to suggest a new role for designers, as active subjects in dialogue with the manufacturing sector. An exemplary regionalist approach to contemporary architecture is given by a niche of Australian architects sensitive to the relation between communities and technical skills, dwelling patterns and building techniques, who tend to reduce the environmental load of construction through the use of local resources, who adopt community design processes and combine tradition with creative innovation. Glenn Murcutt, Richard Leplastrier, Peter Stutchbury, Gregory Burgess and Troppo Architects, who, learning from Aboriginal people's sacred respect for the land, balance the tension between global needs and local expressions, by listening to people and place, preserving traditional lifestyle preferences and combining new technologies with historic building types

Spacecraft oxygen recovery system

Recovery system is comprised of three integrated subsystems: electrochemical carbon dioxide concentrator which removes carbon dioxide from atmosphere, Sabatier reactor in which carbon dioxide is reduced with hydrogen to form methane and water, and static-feed water electrolysis cell to recover oxygen from water

Solenoid-operated swing-check valve

Modification of spring-loaded swing-check valve for solenoid operation provides low-vacuum swing-check valve which can be operated remotely

Extended mission life support systems

Extended manned space missions which include interplanetary missions require regenerative life support systems. Manned mission life support considerations are placed in perspective and previous manned space life support system technology, activities and accomplishments in current supporting research and technology (SR&T) programs are reviewed. The life support subsystem/system technologies required for an enhanced duration orbiter (EDO) and a space operations center (SOC), regenerative life support functions and technology required for manned interplanetary flight vehicles, and future development requirements are outlined. The Space Shuttle Orbiters (space transportation system) is space cabin atmosphere is maintained at Earth ambient pressure of 14.7 psia (20% O2 and 80% N2). The early Shuttle flights will be seven-day flights, and the life support system flight hardware will still utilize expendables