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It has been shown that maximum distance profile (MDP) convolutional codes have optimal recovery rate for windows of a certain length, when transmitting over an erasure channel. In addition, the subclass of complete MDP convolutional codes…

信息论 · 计算机科学 2018-08-10 Julia Lieb

A general scheme for increasing the difference in magnetic flux density between a high and a low magnetic field region by removing unnecessary magnet material is presented. This is important in, e.g., magnetic refrigeration where magnet…

仪器与探测器 · 物理学 2014-10-13 R. Bjørk , C. R. H. Bahl , A. Smith , N. Pryds

Maximum distance separable convolutional codes are the codes that present best performance in error correction among all convolutional codes with certain rate and degree. In this paper, we show that taking the constant matrix coefficients…

信息论 · 计算机科学 2019-05-30 Julia Lieb , Raquel Pinto

Pinning magnetization in a ferromagnetic thin film is commonly realized through exchange biasing with an adjacent antiferromagnet. Field-cooling from above the N\'{e}el temperature is a reliable yet slow re-pinning method in exchange-biased…

介观与纳米尺度物理 · 物理学 2026-05-25 Floris J. F. van Riel , Andries B. M. Droste , Bert Koopmans , Diana C. Leitao

The demagnetization field in micromagnetism is given as the gradient of a potential which solves a partial differential equation (PDE) posed in R^d. In its most general form, this PDE is supplied with continuity condition on the boundary of…

数值分析 · 数学 2024-04-19 Doghonay Arjmand , Victor Martinez Calzada

Cyclic codes are a subclass of linear codes and have applications in consumer electronics, data storage systems, and communication systems as they have efficient encoding and decoding algorithms. In this paper, monomials and trinomials over…

信息论 · 计算机科学 2013-10-08 Cunsheng Ding , Zhengchun Zhou

It is well known that, given \(b\ge 0\), finding an $(a,b)$-trapping set with the minimum \(a\) in a binary linear code is NP-hard. In this paper, we demonstrate that this problem can be solved with linear complexity with respect to the…

信息论 · 计算机科学 2026-02-02 Qingqing Peng , Ke Liu , Guiying Yan , Guanghui Wang

Creating scalable, high performance PDE-based simulations requires a suitable combination of discretizations, differential operators, preconditioners and solvers. The required combination changes with the application and with the available…

数学软件 · 计算机科学 2021-04-19 Jack D. Betteridge , Patrick E. Farrell , David A. Ham

In this article, we propose a concise theoretical framework based on mixed field-susceptibilities to describe the decay of magnetic dipoles induced by non--magnetic nanostructures. This approach is first illustrated in simple cases in which…

Using linear functional-based duality of modules, we generalize the syndrome decoding algorithm of linear codes over finite fields to those over finite commutative rings. Moreover, If the ring is local the algorithm is simplified by…

信息论 · 计算机科学 2014-10-14 Asmae Drhima , Mustapha Najmeddine

We developed a code for the reconstruction of nonlinear force-free and non-force-free coronal magnetic fields. The 3D magnetic field is computed numerically with the help of an optimization principle. The force-free and non-force-free codes…

天体物理学 · 物理学 2009-06-25 T. Wiegelmann

The necessity of radix conversion of numeric data is an indispensable component in any complete analysis of digital computation. In this paper, we propose a binary encoding for mixed-radix digits. Second, a variant of rANS coding based on…

信息论 · 计算机科学 2023-09-13 Na Wang , Wei Yan , Sian-Jheng Lin , Yuliang Huang

A general class of the almost instantaneous fixed-to-variable-length (AIFV) codes is proposed, which contains every possible binary code we can make when allowing finite bits of decoding delay. The contribution of the paper lies in the…

信息论 · 计算机科学 2023-09-08 Ryosuke Sugiura , Yutaka Kamamoto , Takehiro Moriya

We present a dynamical model that successfully explains the observed time evolution of the magnetization in diluted magnetic semiconductor quantum wells after weak laser excitation. Based on the pseudo-fermion formalism and a second order…

介观与纳米尺度物理 · 物理学 2015-05-13 O. Morandi , P. -A. Hervieux , G. Manfredi

We introduce CuPyMag, an open-source, Python-based framework for large-scale micromagnetic simulations with magnetostriction. CuPyMag solves micromagnetics with finite elements in a GPU-resident workflow in which key operations, such as…

计算物理 · 物理学 2026-03-13 Hongyi Guan , Ananya Renuka Balakrishna

The non-binary low-density parity-check (NB-LDPC) codes can offer promising performance advantages but suffer from high decoding complexity. To tackle this challenge, in this paper, we consider NB-LDPC codes over finite fields as codes over…

信息论 · 计算机科学 2024-10-30 V. B. Wijekoon , Emanuele Viterbo , Yi Hong

Polar codes are a class of capacity-achieving error correcting codes that have been selected for use in enhanced mobile broadband in the 3GPP 5th generation (5G) wireless standard. Most polar code research examines the original Arikan polar…

信息论 · 计算机科学 2019-07-17 Adam Cavatassi , Thibaud Tonnellier , Warren J. Gross

Depinning of nanoscale magnetic textures, such as domain walls, vortices and skyrmions, is of paramount importance for magnetic storage and information processing. We measure time-resolved magnetic switching statistics of an individual,…

The Finite Difference Time Domain (FDTD) method is a widely used numerical technique for solving Maxwell's equations, particularly in computational electromagnetics and photonics. It enables accurate modeling of wave propagation in complex…

计算与语言 · 计算机科学 2025-04-15 Yifei He , Måns I. Andersson , Stefano Markidis

A finite element method is presented to compute time harmonic microwave fields in three dimensional configurations. Nodal-based finite elements have been coupled with an absorbing boundary condition to solve open boundary problems. This…

分布式、并行与集群计算 · 计算机科学 2007-05-23 Christian Vollaire , Laurent Nicolas , Alain Nicolas