PURPOSE To assess the ability of headless compression screws to maintain immobile bony contact throughout wrist cycling following simulated 4-corner arthrodesis. Our hypothesis was that the screw constructs would not permit displacement of the carpal bones and, therefore, could tolerate early postoperative range of motion in vivo. METHODS Using 6 matched-paired cadaveric arms, 4-corner arthro...

Why can subsidies lead to lower welfare? Intuitively, autarky is one extreme or corner solution and we have seen that some trade must be beneficial. This does not imply that free trade is optimal (it is beneficial); but subsidies lead to larger volumes of trade than free trade and thus may lead to declines in welfare. In other words, the fact that welfare is increasing in trade flows in some do...

Shock waves generated at different parts of vehicle interact with the boundary layer over the surface at high Mach flows. The adverse pressure gradient across strong shock wave causes the flow to separate and peak loads are generated at separation and reattachment points. The size of separation bubble in the shock boundary layer interaction flows depends on various parameters. Reynolds-averaged...

Matsumura, Shin. Master of Science in Aeronautics and Astronautics, Purdue University, December, 2003. Streamwise Vortex Instability and Hypersonic BoundaryLayer Transition on the Hyper-2000. Major Professor: Steven P. Schneider. Despite the closely coupled multidisciplinary design of hypersonic airbreathing vehicles, the boundary layer transition mechanisms that are important on the forebody a...

In this work, the stability of hypersonic flow over a curved compression ramp is studied using several analysis tools and direct numerical simulations (DNS). The free-stream Mach number unit Reynolds are 7.7 $4.2 \times 10^6$ m $^{-1}$ , respectively. Corner rounding considered to alter separation bubble so as suppress intrinsic instability compression-ramp flow. variation confirmed by global a...

We use the Reynolds-averaged Navier–Stokes (RANS) equations with a full Reynolds stress model (RSM) to study effect of corner angle in supersonic flow. RANS data are compared reference direct numerical simulation fully developed square duct flow, which support predictive capability secondary flows from Stress-ω RSM. then carry out parametric by changing range θ = 45 °– 135 °, focusing on mean s...

in the hot compression test friction has a detrimental influence on the flow stress through the process and therefore, correcting the deformation curve for real behavior is very important for both researchers and engineers. in this study, a series of compression tests were simulated using abaqus software. in this study, it has been employed the taguchi method to design experiments by the factor...

Biomedical data, such as MRI, MEG, EEG or optical imaging data, present a challenge to any data processing software. Feature point detection has many parameters such as edge detection, corner detection and blob detection (region of interest). Compression technique is used to reduce the size of image over selected region over medical image. So that it will helpful to transfer over WLAN. This pap...

5 Simple example problems 20 5.1 Cantilever beam . . . . . . . . . . . . . . . . . . . . . . . . . . . 20 5.2 Frequency calculation of a beam loaded by compressive forces . . 27 5.3 Frequency calculation of a rotating disk on a slender shaft . . . . 29 5.4 Thermal calculation of a furnace . . . . . . . . . . . . . . . . . . 35 5.5 Seepage under a dam . . . . . . . . . . . . . . . . . . . . . . ...