Results 141 to 150 of about 1,179,942 (315)
四川大学学报. 自然科学版, 2007 在GSVD(Generalized Singular Value Decomposition)多麦克风语音去噪方法中引入子带和QR(Orthogonal-Triangular Decomposition),从而提高了矩阵的分解速度.改进的方法由于对输入信号进行抽取和正三角分解的预处理,降低了计算复杂度.实验结果表明了改进方法的有效性和可行性.
张旭炜, 何培宇, 杨涛, 李锦
doaj
Computation and Application of QR Decomposition for Sparse Matrices
QR rozklad je způsob, jak vyjádřit čtvercovou matici jako součin ortogonální matice a horní trojúhelníkové matice. Tento postup se často využívá při řešení soustav lineárních rovnic, výpočtu inverzních matic nebo určení vlastních čísel.
Ženatý, Erik
core
Curvature‐Tuned Friction at Electrified Ionic Liquid Interfaces
Advanced Functional Materials, Volume 36, Issue 46, 8 June 2026.Graphene curvature plays a key role in friction electrotunability at single‐asperity contacts lubricated by ionic liquids. A 9 nm radius yields stronger tunability than larger radii, with distinct friction coefficients at low and high loads indicating a shift in the slippage plane.
Wei Song +6 more
wiley +1 more source
Degradation Mechanisms in PEM Water Electrolysis: Diagnosis and Impact
Advanced Materials Technologies, Volume 11, Issue 11, 5 June 2026.This review provides an analysis of degradation mechanisms in proton electrolyte membrane water electrolyzers (PEMWE), focusing on all key components. It discusses diagnostic and measurement techniques for evaluating degradation, less‐studied mechanisms, and an expert survey.
Annik Bernhardt +11 more
wiley +1 more source
Multi-user hybrid precoding design based on QR decomposition and beam gain alignment
Dianxin kexueMillimeterwave massive MIMO systems based on lens antenna arrays can effectively reduce the number of required RF chains without loss of performance.
ZHANG Tingting +5 more
doaj
Memristive Physical Reservoir Computing
Advanced Science, Volume 13, Issue 33, 15 June 2026.Memristors’ nonlinear dynamics and input‐dependent memory effects make them ideal candidates for high‐performance physical reservoir computing (RC). Based on their conductance modulation, memristors can be classified as electronic or optoelectronic types.
Dian Jiao +9 more
wiley +1 more source
QR Decomposition For Adaptive Filtering Application [PDF]
, 2011 This thesis is designed to investigate adaptive filtering problem based on QR decomposition techniques. An adaptive filter is a self modifying digital filter that adjusts its parameters in order to minimize a defined error function. Adaptive algorithm is
Okwonu, Friday Zinzendoff
core
Recent Advances and Challenges in Ammonia‐Hydrogen Energy Conversion
Advanced Science, Volume 13, Issue 33, 15 June 2026.This work summarizes the latest progress of various catalytic methods in ammonia‐hydrogen energy conversion. The challenges and outlook of ammonia‐hydrogen energy conversion system are also emphasized. This work expects to build a blueprint of renewable and efficient ammonia‐hydrogen energy conversion systems under mild conditions.
Menghao Lv +6 more
wiley +1 more source
Advanced Energy Materials, Volume 16, Issue 23, 17 June 2026.This study develops a novel sparingly solvating electrolyte for potassium–sulfur batteries, utilizing tetrahydrofuran (THF) to induce an anion‐dominated solvation structure that eases polysulfide shuttling and forms an inorganic‐rich solid–electrolyte interphases (SEI). Dimethyl diselenide (DMDSe) accelerates quasi‐solid‐state transformations, reducing
Tianyu Chen +5 more
wiley +1 more source
Interpolation-based QR decomposition in MIMO-OFDM systems
The extension of multiple-input multiple-output (MIMO) sphere decoding from the narrowband case to wideband systems based on orthogonal frequency division multiplexing (OFDM) requires the computation of a QR decomposition for each of the data-carrying ...
Hansen, J. +4 more
core +1 more source