In this contribution we present an automatic method to extract quasisynchronous views from a sequence of monoplane rotational coronary angiograms. Based on the work of Blondel et al. we build the image of horizontal integrals, which contains information about the vertical motion of the coronary tree. The maxima of this motion correspond to end-distole states. We extract a curve of vertical moti...

Amphibious snake-like robots are advantageous than traditional snake-like robots for their adaptability in aquatic environments. This paper presents a novel amphibious snake-like robot. The mechanism and control system of the robot are illustrated. A simplified Serpenoid Curve is used to generate the basic undulation of the robot. Three-dimensional gaits are generated by combining undulations o...

The articles [20], [17], [26], [3], [23], [2], [18], [27], [5], [6], [1], [4], [7], [25], [13], [14], [19], [10], [11], [12], [15], [16], [24], [8], [9], [21], and [22] provide the notation and terminology for this paper. Let C be a non vertical non horizontal non empty subset of E2 T satisfying conditions of simple closed curve and let n be a natural number. Let us assume that n is sufficientl...

The inversion method is an effective approach for transforming uniform random points according to a given probability density function. In two dimensions, horizontal and vertical displacements are computed successively using a marginal and then all conditional density functions. When quasi-random low-discrepancy points are provided as input, spurious artifacts might appear if the density functi...

Steady, Darcian, 1-D, 1-phase evaporation through a vertically inhomogeneous soil from a horizontal water table is simulated as an optimal control problem, i.e. the hydraulic properties of the porous medium (relative permeability of moisture and capillary water retention curve) are considered as control functions. The Richards nonlinear ordinary differential equation is integrated twice as a bo...

Orthogonal families of bicircular quartics are naturally viewed as pairs singular foliations C^ by vertical and horizontal trajectories a non-vanishing quadratic differential. Yet the identification these with real in CP2 is subtle. Here, we give an efficient, geometric argument course updating classical theory confocal modern language differentials Edwards normal form for elliptic curves. In p...

For the “Hopf bundle” S → S → CH, horizontal lifts of simple closed curves are studied. Let γ be a piecewise smooth, simple closed curve on a complete totally geodesic surface S in the base space. Then the holonomy displacement along γ is given by V (γ) = e where A(γ) is the area of the region on the surface S surrounded by γ; λ = 1/2 or 0 depending on whether S is a complex submanifold or not....

The notation and terminology used here are introduced in the following papers: [23], [17], [26], [2], [18], [27], [5], [4], [1], [3], [4], [25], [11], [12], [21], [7], [9], [10], [10], [12], [14], [28], [6], [7], [19], and [23]. Let C be a non vertical non horizontal non empty subset of E T satisfying conditions of simple closed curve and let n be a natural number. Let us assume that n is suffi...