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 ...
Isp = 311; %Engine specific impulse (s) mdot = T/(g*Isp); %Engine mass flow rate (kg/s) tburn = mprop/mdot; %Engine burn time (s) m0 = mprop + mstruct; %Initial launcher mass (kg) x0 = 0; %Initial x-position (m) y0 = R; %Initial y-position (m) vx0...
Such a rocket burns the propelling fuel and simultaneously reduces its weight (see our specific impulse calculator). Burned propellants are exhausted from the nozzle, and the rocket accelerates as a result of the conservation of momentum. We should use the Tsiolkovsky rocket equation only in simple...
D. Polack [210] for modelling wave propagation in certain media using fractional derivatives. The impact of fractional-derivative terms in Polack's equation on the spectrum and impulse response of a boundary-controlled-and-observed infinite-dimensional linear system has been studied by D. Matignon ...
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 ...
和我),凑合着看吧 1124 中国医科大学吧 lidexinnixedil 翻译题 能做出来的举手(46)In physics, one approach takes this impulse for unification to its extreme, and seeks a theory of everything—a single generative equation for all we see.(47)Here, Darwinism seems to offer justification for it ....
In this regime, we can neglect collisions and make a mean field approximation. In that case, the Wigner equation for the smoothed-out Wigner DF is the counterpart of the Vlasov equation for classical collisionless self-gravitating systems but it takes into account properties specific to bosons (...
On a differential-difference equation modeling neuron impulse activity The big parameter method is used for asymptotic analysis of neuron activity equation which was obtained by the authors previously on the base of the phenomenologic prerequisites. Electrical and chemical neuron interaction models are ...
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, ...
If P is a constant forall k∈ (–∞,∞), then the pulse becomes an ideal impulse or delta function. On the other hand, if P only exist for k = k0 say, then the wavefield can be taken to be continuous - a Continuous Wave or CW field. Suppose that at some position along x, ...