Results 21 to 30 of about 15,952 (266)
Optimizing Ambulance Allocation in Dynamic Urban Environments: A Historic Data-Driven Approach
In this study, we present a methodology to solve the multi-period ambulance relocation problem based on historical data. We present a methodology to convert historical data in latitude–longitude coordinates into cell-based network data.
Seongho Kang, Taesu Cheong
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Codimension 3 bifurcation from orbit-flip homoclinic orbit of weak type
This article is devoted to the research of a new codimension 3 homoclinic orbit bifurcation, which is the orbit-flip of weak type. Such kind of homoclinic orbit is a degenerate case of the orbit-flip homoclinic orbit.
Qiuying Lu, Guifeng Deng, Hua Luo
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Small Polygon Compression For Integer Coordinates
Publised at 3rd Conference on Weather Warnings and Communication ...
Jauhri, Abhinav +2 more
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Hybrid mixed‐integer non‐linear programming approach for directional over‐current relay coordination [PDF]
This article proposes the optimal coordination problem of protective relays within a hybrid optimisation framework which is presented based on integer coded genetic algorithm (ICGA) and non‐linear programming (NLP). The optimal coordination problem of directional overcurrent relays (DOCRs) is implemented while aimed at finding the optimal plug setting ...
Mohammad Sadegh Javadi +4 more
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Orthant spanning simplexes with minimal volume
A geometry problem is to find an (n−1)-dimensional simplex in ℝn of minimal volume with vertices on the positive coordinate axes, and constrained to pass through a given point A in the first orthant. In this paper, it is shown that the optimal simplex is
Michele Elia
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In this work, we study several different vector and hybrid light fields, including those with multiple polarization singularities. We derive polarization singularity indices by adopting a well-known M.V.
V.V. Kotlyar, A.A. Kovalev, V.D. Zaitsev
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Polyhedral Gauss sums, and polytopes with symmetry
We define certain natural finite sums of $n$'th roots of unity, called $G_P(n)$, that are associated to each convex integer polytope $P$, and which generalize the classical $1$-dimensional Gauss sum $G(n)$ defined over $\mathbb Z/ {n \mathbb Z}$, to ...
Romanos Diogenes Malikiosis +2 more
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Quantum Maps with Memory from Generalized Lindblad Equation
In this paper, we proposed the exactly solvable model of non-Markovian dynamics of open quantum systems. This model describes open quantum systems with memory and periodic sequence of kicks by environment. To describe these systems, the Lindblad equation
Vasily E. Tarasov
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Vector Arithmetic in the Triangular Grid
Vector arithmetic is a base of (coordinate) geometry, physics and various other disciplines. The usual method is based on Cartesian coordinate-system which fits both to continuous plane/space and digital rectangular-grids.
Khaled Abuhmaidan +2 more
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Regge conformal blocks from the Rindler-AdS black hole and the pole-skipping phenomena
We study a holographic construction of conformal blocks in the Regge limit of four-point scalar correlation functions by using coordinates of the two-sided Rindler-AdS black hole.
Keun-Young Kim +2 more
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