Forty years ago, on November 11, 1974, Burton Richter of Stanford University and the Stanford Linear Accelerator Center (SLAC) and Samuel C. C. Ting of the Massachusetts Institute of Technology jointly announced their independent discoveries of the J/ψ meson, a particle whose existence was proscribed under the then-Standard Model of particle physics. The discovery, known to the physics communit...

We study the nonexistence of global weak solutions to following semi-linear Moore - Gibson-Thompson equation with nonlinearity derivative type, namely,$$\left\{\begin{array}{l}u_{ttt}+u_{tt}-\Delta u-(-\Delta )^{\frac{\alpha}{2}}u_{t}=|u_t|^p,\quad x\in \R^n,\quad t>0,\\u(0,x)= u_0(x),\quad u_t(0,x)=u_1(x), \quad u_{tt}(0,x)= u_2(x) \R^n,\end{array}\right.$$where $\alpha\in (0, 2],\quad ...

Aim to prove the self-collision detection efficiency for fabric simulation, this paper presents a quad bounding box tree based self-collision detection method. Firstly, we construct a quad bounding box tree for fabric according to the spatial location of its primitives. Then we divide the detection process into two stages. During the first rough detection stage, with normal cone method and dete...

Accurate and timely change detection of Earth’s surface features is extremely important for understanding relationships and interactions between people and natural phenomena. Many traditional methods of change detection only use a part of polarization information and the supervised threshold selection. Those methods are insufficiency and time-costing. In this paper, we present a novel unsupervi...

this paper has been devoted to apply the reconstruction of variational iteration method (rvim) to handle the systems of integro-differential equations. rvim has been induced with laplace transform from the variational iteration method (vim) which was developed from the inokuti method. actually, rvim overcome to shortcoming of vim method to determine the lagrange multiplier. so that, rvim method...

in this paper, we give an analytical approximate solution for an integro- differential equation which describes the charged particle motion for certain configurations of oscillating magnetic fields is considered. the homotopy analysis method (ham) is used for solving this equation. several examples are given to reconfirm the efficiency of these algorithms. the results of applying this procedure...

here, a new method called aboodh transform homotopy perturbation method(athpm) is used to solve nonlinear partial dierential equations, we presenta reliable combination of homotopy perturbation method and aboodh transformto investigate some nonlinear partial dierential equations. the nonlinearterms can be handled by the use of homotopy perturbation method. the resultsshow the eciency of this...