Systematic evaluation of perceived spatial quality

The evaluation of perceived spatial quality calls for a method that is sensitive to changes in the constituent dimensions of that quality. In order to devise a method accounting for these changes, several processes have to be performed. This paper shows the development of scales by elicitation and structuring of verbal data, followed by validation of the resulting attribute scales

Free-Flight Skin Temperature and Pressure Measurements on a Slightly Blunted 25 Deg Cone-Cylinder-Flare Configuration to a Mach Number of 9.89

Skin temperatures and surface pressures have been measured on a slightly blunted cone-cylinder-flare configuration to a maximum Mach number of 9.89 with a rocket-propelled model. The cone had a t o t a l angle of 25 deg and the flare had a 10 deg half-angle. Temperature data were obtained at eight cone locations, four cylinder locations, and seven flare locations; pressures were measured at one cone location, one cylinder location, and three flare locations. Four stages of propulsion were utilized and a reentry type of trajectory was employed in which the high-speed portion of flight was obtained by firing the last two stages during the descent of the model from a peak altitude of 99,400 feet. The Reynolds number at peak Mach number was 1.2 x 10(exp 6) per foot of model length. The model length was 6.68 feet. During the higher speed portions of flight, temperature measurements along one element of the nose cone indicated that the boundary layer was probably laminar, whereas on the opposite side of the nose the measurements indicated transitional or turbulent flow. Temperature distributions along one meridian of the model showed the flare to have the highest temperatures and the cylinder generally to have the lowest. A maximum temperature of 970 F was measured on the cone element showing the transitional or turbulent flow; along the opposite side of the model, the maximum temperatures of the cone, cylinder, and flare were 545 F, 340 F, and 680 F, respectively, at the corresponding time

Turbulence Measurements on a Wing-Fuselage Junction Model for CFD Validation

Current turbulence models, such as those employed in Reynolds-averaged Navier-Stokes CFD, are unable to reliably predict the onset and extent of the three-dimensional separated flow that typically occurs in wing fuselage junctions. To critically assess, as well as to improve upon, existing turbulence models, experimental validation-quality flow field data in the junction region is needed. To that end, NASA has developed a CFD validation experiment for a generic full-span wing-fuselage junction model at subsonic conditions. In this paper, we present and discuss sample results from this effort, with a focus on turbulence measurements in the separated corner flow of the wing-fuselage junction that were obtained with an internally mounted laser Doppler velocimetry (LDV) system. In addition, sample comparisons between the flow field measurements and representative CFD of our test case are presented and here, we highlight some of the key discrepancies

Simulator model specification for the augmentor wing jet STOL research aircraft

The configuration and simulation studies of a C-8A (De Havilland Buffalo) aircraft are described. The modifications to STOL configuration consisted of augmentor-wing jet flaps, blown and drooped ailerons, and leading edge slats. The total simulator model includes a number of component parts for producing realistic visual, aural, tactile, vestibular, and kinesthetic cues for the pilot to assess the predicted behavior of the real airplane

Disaster response and climate change in the Pacific

AbstractDisasters, and therefore disaster response, in the Pacific are expected to be affected by climate change. This research addressed this issue, and focused on the immediate humanitarian needs following a disaster, drawing upon adaptive capacity as a concept to assess the resilience of individual organisations and the robustness of the broader system of disaster response. Four case study countries (Fiji, Cook Islands, Vanuatu and Samoa) were chosen for deeper investigation of the range of issues present in the Pacific. The research process was guided by a Project Reference Group, which included key stakeholders from relevant organisations involved in Pacific disaster response to guide major decisions of the research process and to influence its progression.Given the complexity of issues involved, including the contested definitions of adaptive capacity, the research team developed a conceptual framework to underpin the research. This framework drew upon concepts from a range of relevant disciplines including Earth System Governance, climate change adaptation, health resources, resilience in institutions and practice theory. Objective and subjective determinants of adaptive capacity were used to assess the ‘disaster response system’, comprised of actors and agents from government and non-government sectors, and the governance structures, policies, plans and formal and informal networks that support them.Results revealed the most important determinant of adaptive capacity in the Pacific to be communications and relationships, with both informal and formal mechanisms found to be essential. Capacity (including human, financial and technical); leadership, management and governance structures; and risk perceptions were also highly important determinants of adaptive capacity. The research also found that in small Pacific island bureaucracies, responsibility and capacity often rests with individuals rather than organisations. Leadership, trust, informal networks and relationships were found to have a strong influence on the adaptive capacity of organisations and the broader disaster response system.A common finding across all four case study countries affecting adaptive capacity was the limited human resources for health and disaster response more generally, both in times of disaster response and in day-to-day operations. Another common finding was the gap in psychosocial support after a disaster. Water, sanitation and hygiene (WASH) as an immediate post-disaster humanitarian need was relatively well established amongst responding organisations (although long term WASH issues were not resolved), while other humanitarian needs (health care, and food and nutrition) had varying stages of capacity – often limited by human, financial and technical resources. Adaptive capacity was therefore constrained by current gaps which need addressing alongside a future focus where risk is changing.Drawing on these and other findings, recommendations for addressing key determinants of adaptive capacity were developed for relevant stakeholder groups including policy makers and practitioners in the disaster and emergency response sectors in Australia and the Pacific

Heat-transfer Measurements on a Blunt Spherical-segment Nose to a Mach Number of 15.1 and Flight Performance of the Rocket-propelled Model to a Mach Number of 17.8

Heat transfer measurements on blunt spherical segment nose and cylindrical body and flight test of rocket-propelled mode

War and peace in Highland PNG: Some recent developments in the Nebilyer Valley, Western Highlands Province

"During the entire period from about 1950 to 2005 the Kopia and Kubuka tribes, with whom we have lived at Kailge, were not involved in any lethal warfare. They were on the verge of it in 1982 when they joined in with their eastern neighbours - the Epola-Alya and others - in a fight that had broken out between them and their neighbours to the south, the Tea-Dena. This conflict (for reasons discussed in Merlan & Rumsey 1991) became known as the Marsupial Road War (see Map 3). But that war was stopped by a dramatic intervention by a local women’s group who marched out on the battlefield between the opposing sides and broke it up. That intervention established a peace that lasted 23 years. This changed dramatically in 2005 when the Kopia and Kubuka people got into the biggest fight that they had experienced in living memory in which approximately 80 people were killed over then period 2005-2007. Here I give an account of how that turn of events took place, use it to illustrate what I see as some general features of the socio-political order in this region, and try to develop some conclusions about the problems and prospects for conflict resolution there and in Highland New Guinea more generally ..." - page 1-2AusAI