Anomalous origin of a left pulmonary artery from the ascending aorta is a very uncommon congenital cardiac malformation. Different surgical techniques have been employed. The direct implantation has been the strategy of choice. However, postoperative restenosis across the anastomotic site is frequently observed. We present a case in which a flap of the left pulmonary artery was used downward al...

A class of locally analytic transcendental functions suitable for nonlinear adaptive filtering and neural network filtering is proposed. Since the stringent standard analyticity conditions prevent full exploitation of nonlinear quaternionic models, we make use of local analyticity conditions to provide a framework for a generic extension of nonlinear learning algorithms from the real and comple...

In this correspondence, the two-dimensional (2-D) direction-of-arrival (DOA) estimation problem for partially polarized (PP) signals is considered. In particular, we focus on an array geometry containing three identical uniform linear arrays (ULAs). Compared with existing methods, the proposed one has three main advantages. Firstly, the estimation accuracy is higher since it exploits the polari...

Twisted hollow waveguides with noncircular cross sections may be considered as slow-wave structures. In a twisted waveguide, propagating radio frequency (rf) waveguide modes can have phase velocities slower than those of similar modes in a straight waveguide. This property is interesting since a twisted waveguide basically has a uniform cross section along the propagation direction. In such a w...

Interference models are commonly used in agriculture, industry, and other related fields. Optimal designs for these important topics block designs. In this work, we consider both direct total effects under guarded unguarded proportional interference models. Some general equivalence theorems established to characterize such efficient For models, generate optimal noncircular estimating effects, r...

In order to establish the design method of a noncircular face gear (NFG) with intersecting axes, meshing theory this is investigated based on principle space meshing. A generalized approach for designing closed pitch curve NFG axes was proposed Fourier series. The mathematical model generated by shaper cutter established. fundamental parameters gears were defined, determining their values discu...