Results 31 to 40 of about 116,760 (305)
On the Multiple Packing Densities of Triangles [PDF]
Discrete & Computational Geometry, 2015 arXiv admin note: text overlap with arXiv:1412 ...
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Nondispersal and Density Properties of Infinite Packings [PDF]
SIAM Journal on Control and Optimization, 2019 The authors deal with a shape optimization problem related to packings of isometric copies of convex bodies $K$ in $\mathbb{R}^2$. They determine maximizers of target functionals $J_t(K)$, $0 \le t \le 1$, that are convex combinations of two functionals of $K$: one describing the packing density obtainable by copies of $K$ in $\mathbb{R}^2$, the other ...
Delyon, Alexandre +2 more
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A Purely Symbol-Based Precoded and LDPC-Coded Iterative-Detection Assisted Sphere-Packing Modulated Space-Time Coding Scheme [PDF]
, 2006 In this contribution, we propose a purely symbol-based LDPC-coded scheme based on a Space-Time Block Coding (STBC) signal construction method that combines orthogonal design with sphere packing, referred to here as (STBCSP).
F. Guo +7 more
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The Development of Theoretical Basis of Mathematical Model of Crushed Rock Particle-Particle Packing [PDF]
E3S Web of Conferences, 2019 The existing mathematical models that predict the poly-fractional granular media packing density do not take into account their packing degree, which gives a fairly large deviation of the simulation results from the actual experimental values (up to 20 ...
Shabaev Sergey +2 more
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Preparing and characterizing repacked columns for experiments in biochar-amended soils
MethodsX, 2021 Laboratory soil column experiments have been frequently performed for investigating various soil-related processes. In recent years, the demand for using biochar as a soil amendment for environmental and agricultural purposes has increased significantly.
Seyyed Ali Akbar Nakhli +2 more
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Packing Densities of Delzant and Semitoric Polygons
Symmetry, Integrability and Geometry: Methods and Applications, 2023 Exploiting the relationship between 4-dimensional toric and semitoric integrable systems with Delzant and semitoric polygons, respectively, we develop techniques to compute certain equivariant packing densities and equivariant capacities of these systems by working exclusively with the polygons. This expands on results of Pelayo and Pelayo-Schmidt.
Du, Yu +7 more
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Rheological Measurements in Liquid-Solid Flows [PDF]
, 2009 This thesis presents experimental measurements of the shear stresses of a fluid-particulate flow at high Reynolds numbers as a function of the volume fraction of solids.
Koos, Erin Crystal
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, 2023 Thiolate-protected gold nanoclusters, with unique nuclearity- and structure-dependent properties, have been extensively used in energy conversion and catalysis; however, the mystery between kernel structures and properties remains to be revealed.
Yang Zhao (39052) +5 more
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Friction calculation and packing effect analysis for gravel packing in deepwater horizontal wells
Energy Science & Engineering, 2021 Gravel packing is one of the most commonly used well‐completion methods for controlling sand production in deepwater horizontal gas wells. Both the gravel‐packing mechanisms and the technical difficulties of gravel packing in a horizontal well are ...
Min Wen +4 more
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Effects of packing density on the magnetic properties of cobalt nanowire assemblies
AIP Advances, 2019 The magnetic properties of single crystalline hcp Co nanowire (NW) assemblies with different packing densities are investigated. The compacted assemblies exhibit an unusual increase in coercivity (HC) from 5.5 kOe to 6.1 kOe with the increase of the ...
Meiying Xing +4 more
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