Rocket velocity is calculated using the equation V = Kt * ln(Mo/Mf) + Vi, where V is the final velocity, Kt is the specific impulse, Mo is the initial mass of the rocket, Mf is the final mass of the rocket, and Vi is the initial velocity. The natural logarithm (ln)...
NASA Glenn and Aerojet are developing a high fidelity high voltage Hall accelerator that can achieve specific impulse magnitudes greater than 2,700 seconds and xenon throughput capability in excess of 300 kilograms. Performance, plume ... H Kamhawi,T Haag,W Huang,... - Aiaa/asme/sae/asee Joi...
In Fig. 20.4(d), results for multispectral anisotropic diffusion are shown for the mean curvature approach of [40] used in combination with the modified gradient approach of [11]. The edge map in Fig. 20.4(e) shows improved resilience to impulse noise over the vector distance dissimilarity ...
Impulsevan der Pol equationperiodic motiondiscontinuousmapping dynamicsIn this paper, we investigate the dynamics of the periodic motion for switched van der Pol equation with impulsive effect, utilizing the theory of mapping dynamics in switching systems. For the optimized problem, we consider such ...
The conservation of momentum equation is derived and the stagnation pressure and impulse function are introduced. The equations of motion thus developed are put into standard logarithmic differential form, which, with a corresponding table of influence coefficients, permits ready application to specific ...
Therefore, we can reconstruct the time-resolved impulse response or Green's function for the diffuse specific intensity accord- ing to Iðr, ^s, tÞ~ 1 ð? Iðr, ^s, vÞeivtdv: 2p {? ð20Þ The frequency dependent coefficients from system (10) satisfy the condition Ilm...
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Burr, D.C., Morrone, M.C.: Impulse-response functions for chromatic and achromatic stimuli. J. Opt. Soc. Am. A10, 1706–1713 (1993) ArticleGoogle Scholar Catté, F., Lions, P.L., Morel, J.M., Coll, T.: Image selective smoothing and edge detection by nonlinear diffusion. SIAM J...
This integration not only enhances the understanding of satisfaction levels but also provides deeper insights into how specific attributes influence the overall travel experience, offering valuable information for tourism operators (do Rosário, Severino, Nunes, Santos, Costa, & de Lurdes Calisto, 2024)...
Mass, impulse and energy are preserved. Owing to their integral form, the equations can be used for discontinuous problems as well as for unstructured grids. Figure 5.4 shows a comparison of the three methods. Sign in to download full-size image 5.4. Comparison between finite differences, ...