In this paper, a method for predicting the landing stability of lunar lander by classification map is proposed, considering soft soil characteristics and slope angle surface. First, condition in terms safe (=stable), sliding (=unstable), tip-over (=statically unstable) possibilities was checked dropping onto flat surfaces through finite-element (FE) simulation according to angle, friction coeff...

In an interior permanent magnet synchronous motor (IPMSM) with segmented skewed poles, the armature reaction magnetic field (AR-MF) changes nonlinearly due to saturation of rotor barrier. Meanwhile, this varies under different excitation currents. As a result, it is difficult be calculated by means analytical methods. paper, calculation model AR-MF IPMSM first established vector superposition m...

A major task in the simulation of micromagnetic phenomena is the effective computation of the stray-field H and/or of the corresponding energy, where H solves the magnetostatic Maxwell equations in the entire space. For a given FE magnetization mh, the naive computation of H via a closed formula typically leads to dense matrices and quadratic complexity with respect to the number N of elements....

in this paper, the exp-function method, with the aid of a symbolic computation system such as maple, is applied to the (2+1) -dimensional calogero bogoyavlanskii schiff equation. exact and explicit generalized solitary solutions are obtained in more general forms. the free parameters can be determined by initial or boundary conditions. the method is straightforward and concise, and its applicat...

The inverse problem in Electroand Magneto-EncephaloGraphy (EEG/MEG) aims at reconstructing the underlying current distribution in the human brain using potential differences and/or magnetic fluxes that are measured non-invasively directly, or at a close distance, from the head surface. The solution requires repeated computation of the forward problem, i.e., the simulation of EEG and MEG fields ...

The eecient computation of the leftmost eigenpairs of the generalized symmetric eigenproblem Ax = Bx by a de-ation accelerated conjugate gradient (DACG) method may be enhanced by an improved estimate of the initial eigenvectors obtained with a multigrid (MG) type approach. The DACG algorithm essentially optimizes the Rayleigh quotient in subspaces of decreasing size B-orthogonal to the eigenvec...

Restoring and non-restoring divider has become widely applicability in the era of digital computing application due to its computation speed. In this paper, we have proposed the design of divider of different architecture for the computation of Vedic sutra based. The design of divider in the Vedic mode results in high computation throughput due to its replica architecture, where latency is mini...

Functional Encryption (FE) allows users who hold a specific decryption key, to learn function of encrypted data while the actual plaintexts remain private. While FE is still in its infancy, it our strong belief that years come, this remarkable cryptograhic primitive will have matured degree make an integral part access-control systems, especially cloud-based ones. To end, we believe great impor...