4,501 research outputs found
Interactive algorithm for generating accurate as-built plans by building owners
Mass Customization systems in architecture have yet to adequately address the problem of capturing physical context, a fundamental aspect of dealing with building renovation, which has limited their scope of application. Previous research has demonstrated that existing methods of capturing as-built plans of rooms by non-expert users do not produce sufficiently accurate results for digital fabrication. The present paper reports on research into the development of an algorithm for semi-automated survey of convex or non-convex rooms by building owners. The improved workflow is tested by expert and non-expert users in a to-be renovated building and the results are compared with existing methods of survey.info:eu-repo/semantics/publishedVersio
Transposição congenitamente corrigida das grandes artérias e coarctação da aorta: uma associação pouco comum
Congenitally corrected transposition of the great arteries, L-TGA, is a rare abnormality accounting for less than 0.5% of clinically apparent congenital heart disease. Age at time of diagnosis and survival rate are variable and depend mostly on associated anomalies. The authors present a clinical case of a twenty-four-year-old woman in whom, in a routine echocardiogram, congenitally corrected transposition of the great arteries and aortic coarctation were diagnosed, an unusual association. They describe the results of complementary exams (echocardiography, chest X-ray, electrocardiogram and cardiac angiography) that they believe to be useful for the correct diagnosis of this clinical situation. Additionally, the authors make a brief review of the literature relevant to the case
Detection of Multiparticle Entanglement: Quantifying the Search for Symmetric Extensions
We provide quantitative bounds on the characterisation of multiparticle
separable states by states that have locally symmetric extensions. The bounds
are derived from two-particle bounds and relate to recent studies on quantum
versions of de Finetti's theorem. We discuss algorithmic applications of our
results, in particular a quasipolynomial-time algorithm to decide whether a
multiparticle quantum state is separable or entangled (for constant number of
particles and constant error in the LOCC or Frobenius norm). Our results
provide a theoretical justification for the use of the Search for Symmetric
Extensions as a practical test for multiparticle entanglement.Comment: 5 pages, 1 figur
Isthmocele, a rising pathology
Isthmocele is a growing pathology due to the increase in the number of cesarean deliveries. Pelvic pain and abnormal uterine bleeding are common complaints in our clinical practice, and isthmocele should be included in the differential diagnosis, especially in women who underwent previous cesarean sections.info:eu-repo/semantics/publishedVersio
Triangulation algorithms for generating as-Is floor plans
Precisely capturing context is a fundamental first step in dealing with built environments. Previous research has demonstrated that existing methods for generating as-is floor plans of non-orthogonal rooms by non-expert users do not produce geometrically accurate results. The present paper proposes the adaptation of empirical triangulation methods, traditionally used by architects and other building professionals in surveying building interiors, to the development of semi-automated workflow of room survey. A set of triangulation algorithms that automate the plan drawing stage are presented.info:eu-repo/semantics/acceptedVersio
Propagation of Partially Coherent Light in non-Hermitian Lattices
Band theory for partially coherent light is introduced by using the formalism
of second-order classical coherence theory under paraxial approximation. It is
demonstrated that the cross-spectral density function, describing correlations
between pairs of points in the field, can have bands and gaps and form a
correlation band structure. The propagation of a partially coherent beam in
non-Hermitian periodic structures is considered to elucidate the interplay
between the degree of coherence and the gain/loss present in the lattice. We
apply the formalism to study partially coherent Bloch oscillations in lattices
having parity-time symmetry and demonstrate that the oscillations can be
sustained in such media but they are strongly dependent upon the spatial
correlations of the beam. A transition between breathing and oscillating modes
is shown to be induced by the degree of spatial coherence
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