In this paper a transient free convection flow around a sphere with variable surface temperature and embedded in a porous medium has been considered. The temperature of the sphere is suddenly raised and subsequently maintained at values that varies with position on surface. The method of asymptotic expansions is applied for small Rayleigh numbers and then a finite-difference scheme is used to s...

Research into autonomous (robotic) apple picking has not yet resolved the problem of finding optimal orientation. Robotic efficiency, in terms all available apples without loss or damage, remains low. This paper proposes a method determining orientation relative to target fruit and adjacent branches from point cloud surrounding space. The mechanism is then able avoid accurately grasp order pick...

Informledge System (ILS) is a knowledge network with autonomous nodes and intelligent links that integrate and structure the pieces of knowledge. In this paper, we put forward the strategies for knowledge embedding and retrieval in an ILS. ILS is a powerful knowledge network system dealing with logical storage and connectivity of information units to form knowledge using autonomous nodes and mu...

There has been extensive work on the existence of periodic solutions for nonlinear second order autonomous differantial equations, but little work regarding the third order problems. The popular Poincare-Bendixon theorem applies well to the former but not the latter (see [2] and [3]). We give a necessary condition for the existence of periodic solutions for the third order autonomous system...

it is disputed whether the law is an autonomous discipline or not? the adherents of the autonomy of law mainly are they, legal scholarship should be about distinctively legal topics and is not or should not be about other topics. the supporters of dependence of law mainly are legal realism, economic analysis of law, law and society, critical legal studies movement. they say the governing presup...