A new type of backbone robot is presented in this paper. The core idea is to use a cross shape mechanism with the principle of functioning of the scissors linkages, known as a pantograph. Although this continuum arm acts quite similar to tendon-driven robot, this manipulator does not include any tendon in its structure. This design does not suffer from the weaknesses of the continuum design suc...

In this paper, the mechanical behavior of three-phase inhomogeneous materials is modeled using the meso-scale model with lattice beams for static and dynamic analyses. The Timoshenko beam theory is applied instead of the classical Euler-Bernoulli beam theory and the mechanical properties of lattice beam connection are derived based on the continuum medium using the non-local continuum theory. T...

I provide evidence that the 2D RP N −1 model for N ≥ 3 is equivalent to the O(N)-invariant non-linear σ-model in the continuum limit. To this end, I mainly study particular versions of the models, to be called constraint models. I prove that the constraint RP N −1 and O(N) models are equivalent for sufficiently weak coupling. Numerical results for the step-scaling function of the running coupli...

14 Creating accurate, macroscopic scale models of microscopically heterogeneous media is computation15 ally challenging. The difficulty is increased for materials with time-varying microstructures. Common 16 modeling approaches for heterogeneous media include purely continuum-based models and homogeniza17 tion methods. However, these methods tend to blur the inhomogeneities of the material that...

A field theoretic formulation of the Marinari-Parisi supersymmetric matrix model is established and shown to be equivalent to a recently proposed supersym-metrization of the bosonic collective string field theory. It also corresponds to a continuum description of super-Calogero models. The perturbation theory of the model is developed and, in this approach, an infinite sequence of vertices is g...

In this paper, we propose an analytical model for 802.11 ad hoc wireless networks. Our model consists in replacing a finite number of nodes by an equivalent continuum characterized by a density of nodes and disseminated in the network according to some distribution function. The key feature of the proposed model is that it permits taking into account the effect of interference, the CSMA/CA mech...

This paper investigates the effective wall thickness of a single-walled carbon nanotube, a critical quantity for any research in mechanics and property characterization of carbon nanotubes. To this end, the response of a bundle of single-walled carbon nanotubes to external hydrostatic pressure was modeled using the ring theory of continuum mechanics. The model predicted that the equivalent thic...