In this paper, an n-star general dynamic model of tethered satellite system with closed-loop configuration is provided. An analytical method for periodic solution stability the proposed based on Floquet theory, which proved that depends maximum modulus eigenvalue a matrix related to Jacobian matrix. The 3-star equilateral triangle as initial analyzed example upon method, and results are verifie...

Our objective is to measure the permanent and transitory components of criminality in Brazilian states by using methodology proposed At Chappe (2005). The empirical strategy used follows Empirical Mode Decomposition method (EMD), Huang et al. (1998). Based on a sample collected Mortality Information System (SIM) from DATASUS, decomposition process was carried out for 27 1996 2015. results show ...

rock selection in modeling and simulation studies is usually based on two techniques; routinely defined rock types and those defined by special core analysis (scal). the challenge in utilizing these two techniques is that they are frequently assumed to be the same, but in practice, static rock-types (routinely defined) are not always representative of dynamic rock-types (scal defined) in the re...