Results 31 to 40 of about 930 (251)
Densest helical structures of hard spheres in narrow confinement: An analytic derivation
AIP Advances, 2019 The emergence of helicity from the densest possible packings of equal-sized hard spheres in narrow cylindrical confinement can be understood in terms of a density maximization of repeating microconfigurations.
Ho-Kei Chan, Yuqian Wang, Hongyu Han
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Linking sand permeability anisotropy to fabric anisotropy via numerical simulation [PDF]
E3S Web of ConferencesCharacterisation of the permeability of soils is of practical importance and, for cohesionless or granular soils, it can be predicted from the void ratio and the particle size distribution (PSD).
Morimoto Tokio +2 more
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Minkowski Circle Packings on the Sphere [PDF]
Discrete & Computational Geometry, 1999 A set of balls is said to be a Minkowski set if none of its elements contains in its interior the centre of another. Replacing in a Minkowski set of balls each ball by a concentric ball of half the radius, one obtains a packing of balls which is called a Minkowski packing. The paper under review concerns Minkowski sets and Minkowski packings of circles
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Pediatric Blood &Cancer, EarlyView.ABSTRACT Pediatric radiation therapy presents unique challenges compared to adult treatments, including those of immobilization, potential need for sedation, and the critical importance of accurate, reproducible positioning. Additionally, heightened attention to imaging doses is necessary to minimize long‐term toxicity in survivors.
Parham Alaei +17 more
wiley +1 more source
Testing Adam-Gibbs relationship in tapped granular packings
Communications PhysicsDisordered granular packings share many similarities with supercooled liquids, particularly in the rapid increase of structural relaxation time within a narrow range of temperature or packing fraction.
Xinyu Ai +6 more
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Proceedings of the International Congress of Mathematicians (ICM 2018), 2019 In this talk we will speak about recent progress on the sphere packing problem. The packing problem can be formulated for a wide class of metric spaces equipped with a measure. An interesting feature of this optimization problem is that a slight change of parameters (such as the dimension of the space or radius of the spheres) can dramatically change ...
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Circle, sphere, and drop packings [PDF]
Physical Review E, 1996 We studied the geometrical and topological rules underlying the dispositions and the size distribution of non-overlapping, polydisperse circle-packings. We found that the size distribution of circles that densely cover a plane follows the power law: $N(R) \propto R^{-α}$.
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Pediatric Blood &Cancer, EarlyView.ABSTRACT Background General pediatricians often evaluate hematologic and oncologic presentations before subspecialty consultation, yet the 2025 Accreditation Council for Graduate Medical Education (ACGME) pediatric requirements reduce inpatient pediatric hematology/oncology (PHO) time, raising questions about resident readiness.
Colburn Yu, Rohini Jain
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Tight Packings of Hamming Spheres
Journal of Combinatorial Theory, Series A, 1996 It is proved that the binary Hamming space of dimension \(n\) cannot be partitioned into 3 mutually disjoint spheres. On the other hand, for every \(k>3\) the \((k-2)\)-dimensional Hamming space can be partitioned into \(k\) spheres.
FACHINI, Emanuela, KORNER, JANOS
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Pediatric Blood &Cancer, EarlyView.ABSTRACT Background Animal‐assisted activities (AAAs) with therapy dogs have shown positive effects on patient well‐being and quality of life in various areas of medicine, including pediatric oncology. However, research on this topic is limited. The aim of this study is to present the current status of AAA in pediatric oncology in Germany, Austria, and
Jan‐Marius Wedig +7 more
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