Results 121 to 130 of about 51,101 (296)
An optimal polynomial for a covering radius problem
, 1992 A. Tietäväinen discovered, how polynomials with suitable Fourier–Krawtchouk coefficients can be used to get information about the covering radius of a code as a function of the dual distance.
Jyrki Lahtonen, Lahtonen, Jyrki
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X‐Functionality–Driven Photocatalytic Hydrogen Evolution in 2D 4‐X‐PEA2SnI4 Perovskites
Advanced Functional Materials, EarlyView.We report a water‐based synthesis of 2D 4‐X‐PEA2SnI4 perovskite microcrystals with prominent photocatalytic (PC) activity for H2 production. The synergy between organic functionalization and HI‐derived iodide scavenges holes suppress octahedral distortion, and favor electron accumulation, enabling a PC H2 evolution ∼20 µmol·g−1 and long‐term stability ...
Taeyeon Kim +21 more
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Covering Radius of Two-dimensional Lattices [PDF]
, 2009 The covering radius problem in any dimension is not known to be solvable in nondeterministic polynomial time, but when in dimension two, we give a deterministic polynomial time algorithm by computing a reduced basis using Gauss\u27 algorithm in this ...
Yingpu Deng, Yanbin Pan, Yupeng Jiang
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Advanced Functional Materials, EarlyView.Flexible piezoresistive pressure sensors underpin wearable and soft electronics. This review links sensing physics, including contact resistance modulation, quantum tunneling and percolation, to unified materials/structure design. We highlight composite and graded architectures, interfacial/porous engineering, and microstructured 3D conductive networks
Feng Luo +2 more
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Density of constant radius normal binary covering codes
, 2008 A binary code with covering radius R is a subset C of the hypercube Qn={0,1}n such that every x∈Qn is within Hamming distance R of some codeword c∈C, where R is as small as possible.
Ellis, Robert B.
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Formation of Quasi‐Decoupling Interface on Li‐Metal Anodes in High Donor Electrolyte
Advanced Functional Materials, EarlyView.Li‐metal anode (LMA) is stabilized by introducing Li2Te2 as an electrolyte additive for Li‐metal batteries. Upon contact with Li, Li2Te2 spontaneously converts to Li2Te, which electronically isolates Li from dimethyl sulfoxide due to its large bandgap and minimal Bader charge transfer.
Hyerim Kim +9 more
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The variable radius covering problem
In this paper we propose a covering problem where the covering radius of a facility is controlled by the decision-maker; the cost of achieving a certain covering distance is assumed to be a monotonically increasing function of the distance (i.e., it ...
Krass, Dmitry +3 more
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The covering radius of Euclidean codes
International audienceThe Euclidean metric for block codes is an important parameter to consider when building Euclidean lattices by Construction A and spherical codes by the Yaglom map.
Shi, Minjia +2 more
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Advanced Functional Materials, EarlyView.A fluorine‐rich acrylate monomer (PFHEA) was solvent‐free applied to NCM90 and thermally decomposed under Ar to convert residual lithium into LiF and form a pre‐built LiF/fluorinated amorphous carbon (LiF/FC) interphase. The LiF/FC layer suppresses NiO rock‐salt reconstruction and microcrack propagation, lowers interfacial resistance, and improves Li ...
Pangyu Kim +6 more
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On the covering radius of cyclic linear codes and arithmetic codes
, 1985 The problem of finding the covering radius and minimum distance of algebraic and arithmetic codes is shown to be related to Waring's problem in a finite field and to the theory of cyclotomic numbers.
Helleseth, Tor
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