نتایج جستجو برای: body map
تعداد نتایج: 917843 فیلتر نتایج به سال:
We discuss the inverse problem of determining the possible presence of an (n−1)-dimensional crack Σ in an n-dimensional body Ω with n > 3 when the so-called Dirichlet-to-Neumann map is given on the boundary of Ω. In combination with quantitative unique continuation techniques, an optimal single-logarithm stability estimate is proven by using the singular solutions method. Our arguments also app...
We consider the problem of finding the maximum area parallelogram (MAP) inside a given convex polygon. Our main result is an algorithm for computing the MAP in an n-sided polygon in O(n2) time. Achieving this running time requires proving several new structural properties of the MAP, and combining them with a rotating technique of Toussaint [10]. We also discuss applications of our result to th...
We discuss the relation between ensemble and time averages for quasistationary states of low-dimensional symplectic maps that present remarkable analogies with similar states detected in many-body long-range-interacting Hamiltonian systems.
We investigate the effects of linear and optimal nonlinear control in the simple case of one-dimensional unimodal maps. We show that linear feedback relates unimodal maps to invertible “Henon-like” maps. This observation should be useful in relating the considerable bodies of knowledge which exist for the two types of systems. In the case of the optimal nonlinear feedback scheme of de Sousa Vie...
Two esterase loci, Est-4 and Est-5, in Aedes albopictus encode carboxylesterases in 4th-instar larvae, pupae and adults. The electrophoretic bands migrate on agar gels toward the most anodal side, those of Est-5 followed by those of Est-4. Linkage studies on the two loci revealed that they were arranged on linkage group 2 in the following order: Est-4-(0.9 +/- 0.7 to 4.3 +/- 1.4 map units)-p(pi...
We present a mass map reconstructed from weak gravitational lensing shear measurements over 139 deg2 from the Dark Energy Survey science verification data. The mass map probes both luminous and dark matter, thus providing a tool for studying cosmology. We find good agreement between the mass map and the distribution of massive galaxy clusters identified using a red-sequence cluster finder. Pot...
In a general-relativistic spacetime (Lorentzian manifold), gravitational lensing can be characterized by a lens map, in analogy to the lens map of the quasi-Newtonian approximation formalism. The lens map is defined on the celestial sphere of the observer (or on part of it) and it takes values in a two-dimensional manifold representing a two-parameter family of worldlines. In this article we us...
At the present study, the observations of performance traits including body weight at 8 and 12 weeks of age, age at sexual maturity, egg weight and egg number were analyzed to detect major genes in Yazd native fowl. The probability of segregation for major genes was studied using simple tests including tests of normality, Bartlett, Levene and Fain for residuals and Bayesian analysis. Segregati...
We discuss the inverse problem of determining the, possibly anisotropic, conductivity of a body Ω ⊂ Rn when the so-called Neumann-to-Dirichlet map is locally given on a non empty curved portion Σ of the boundary ∂Ω. We prove that anisotropic conductivities that are a-priori known to be piecewise constant matrices on a given partition of Ω with curved interfaces can be uniquely determined in the...
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