Using a Spline-Garlekin and Inverse Iteration method, we studied in detail the photodetachment cross section of the He ? (1s2s2p 4 P o) state in the region of the 1s detachment threshold. Details of the cross section from threshold to 44 eV are presented. EEects of core excitation and continuume channel coupling are studied. A very narrow 2s3s4s 4 S resonance was found at 42.86603 eV with a wid...

The angular distribution in photon-jet production in pp̄ → γ jetX is studied within a generalized factorization scheme taking into account the transverse momentum of the partons in the initial hadrons. Within this scheme an anomalously large cos 2φ asymmetry observed in the Drell–Yan process could be attributed to the T-odd, spin and transverse momentum dependent parton distribution function h⊥q...

This paper describes an adaptive hybrid visual servoing/force controller to realize visual servoing while the manipulator exerts contract force on a surface. The proposed controller has a hybrid structure of visual servoing control and force control. Because it has an on-line estimator for the parameters of the cameramanipulator system and the one for the parameters of the unknown constraint su...

A flexible shape generation technique (Surface Contour Shape Generation) is combined with multiobjective evolutionary optimization algorithms in order to synthesize geometrically-diverse dielectric resonator antennas and explore the impact geometry has on relevant performance metrics. It shown that noncanonical shapes can improve gain bandwidth when compared conventional antenna geometries. Pre...

This paper presents an algorithm that solves the inverse kinematics problem of all six degrees of freedom manipulators, "general" or "special". A manipulator is represented by a chain of characters that symbolizes the position of prismatic and revolute joints in the manipulator and the special geometry that may exist between its joint axes. One form of the loop closure equation is chosen and th...

For deuteron electroweak disintegration, parity violating effects are investigated which arise from the interference of γ and Z exchange as well as from the hadronic sector via a small parity violating component in the deuteron. The general formalism for the differential cross section and polarization observables of electromagnetic deuteron disintegration is extended to incorporate parity viola...

Let G(∞) be an infinite graph with the vertex set corresponding to the set of positive integers N. Denote by G(l) a subgraph of G(∞) which is spanned by the vertices {1, . . . , l}. As a possible extension of Turán’s theorem to infinite graphs, in this paper we will examine how large lim inf l→∞ |E(G(l))| l2 can be for an infinite graph G(∞), which does not contain an increasing path Ik with k ...

To understand better the early galactic production of Li, Be, and B by cosmic ray spallation and fusion reactions, the dependence of these production rates on cosmic ray models and model parameters is examined. The sensitivity of elemental and isotopic production to the cosmic ray pathlength magnitude and energy dependence, source spectrum, spallation kinematics, and cross section uncertainties...

In this paper, we propose a new numerical method for solution of Urysohn two dimensional mixed Volterra-Fredholm integral equations of the second kind on a non-rectangular domain. The method approximates the solution by the discrete collocation method based on inverse multiquadric radial basis functions (RBFs) constructed on a set of disordered data. The method is a meshless method, because it ...

Recent developments in the area of smart structures indicate that variable geometry / stiffness truss network is of fundamental importance in designing smart transformable structures and systems for space applications. This paper presents the conceptual design and dynamic modeling of a cooperative re-configurabel dual-arm robotic structure called Dual-Arm Cam-Lock Manipulator. The Manipulator i...