3,009 research outputs found
[Review of] Jesse E. Gloster. Minority Economic, Political and Social Development
Minority Economic, Political and Social Development is a comprehensive document on the experience of discriminated minority groups in the United States, covering a wide range of minority issues which include poverty, aging, unemployment, housing, health, financial institutions, politics, and minority experiences in professional athletics, the military, and mass media. Few other books could surpass the scope of this ambitious work
Walking and Dwelling: Creating an Atelier in Nature
This paper comprises a description of an exploration of how the author’s daily walking reflected the emergence of an a/r/tographical living inquiry that engendered a profound sense of dwelling and lingering, and a deeper understanding of the nature of artistic invitation through a pedagogical aesthetic provocation
Ground-based PIV and numerical flow visualization results from the surface tension driven convection experiment
The Surface Tension Driven Convection Experiment (STDCE) is a Space Transportation System flight experiment to study both transient and steady thermocapillary fluid flows aboard the United States Microgravity Laboratory-1 (USML-1) Spacelab mission planned for June, 1992. One of the components of data collected during the experiment is a video record of the flow field. This qualitative data is then quantified using an all electric, two dimensional Particle Image Velocimetry (PIV) technique called Particle Displacement Tracking (PDT), which uses a simple space domain particle tracking algorithm. Results using the ground based STDCE hardware, with a radiant flux heating mode, and the PDT system are compared to numerical solutions obtained by solving the axisymmetric Navier Stokes equations with a deformable free surface. The PDT technique is successful in producing a velocity vector field and corresponding stream function from the raw video data which satisfactorily represents the physical flow. A numerical program is used to compute the velocity field and corresponding stream function under identical conditions. Both the PDT system and numerical results were compared to a streak photograph, used as a benchmark, with good correlation
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