Results 141 to 150 of about 910,007 (330)
Rethinking Symmetric Matrix Factorization: A More General and Better Clustering Perspective [PDF]
Mengyuan Zhang, Kai Liu
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DENTA: A Dual Enzymatic Nanoagent for Self‐Activating Tooth Whitening and Biofilm Disruption
The nanoapatite with dual enzymes (DENTA) accumulates in dentinal tubules, reducing hypersensitivity caused by dental nerve exposure and facilitating continuous ROS generation through salivary glucose for effective, long‐term whitening. The dentin structures remain non‐destructive due to the low concentration of ROS, demonstrating excellent cell ...
Junseok Kim +13 more
wiley +1 more source
Fast‐Responding O2 Gas Sensor Based on Luminescent Europium Metal‐Organic Frameworks (MOF‐76)
Luminescent MOF‐76 materials based on Eu(III) and mixed Eu(III)/Y(III) show rapid and reversible changes in emission intensity in response to O2 with very short response times. The effect is based on triplet quenching of the linker ligands that act as photosensitizers. Average emission lifetimes of a few milliseconds turn out to be mostly unaffected by
Zhenyu Zhao +5 more
wiley +1 more source
On theS-matrix of Schrödinger operators with non-symmetric zero-range potentials [PDF]
PA Cojuhari +5 more
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Understanding Decoherence of the Boron Vacancy Center in Hexagonal Boron Nitride
State‐of‐the‐art computations unravel the intricate decoherence dynamics of the boron vacancy center in hexagonal boron nitride across magnetic fields from 0 to 3 T. Five distinct regimes emerge, dominated by nuclear spin interactions, revealing optimal coherence times of 1–20 µs in the 180–350 mT range for isotopically pure samples.
András Tárkányi, Viktor Ivády
wiley +1 more source
On the Information Matrix for Symmetric Distributions on the Hypersphere
In this work a general definition of symmetry for a directional model is given in terms of the invariance of the distribution with respect to a subgroup of O(k), the group of orthogonal transformations in \(R^ k\). Then the information matrix for the parameters indexing a symmetric density is shown to be block-diagonal: one block for the location and ...
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Thermal transport in Ru and W thin films is studied using steady‐state thermoreflectance, ultrafast pump–probe spectroscopy, infrared‐visible spectroscopy, and computations. Significant Lorenz number deviations reveal strong phonon contributions, reaching 45% in Ru and 62% in W.
Md. Rafiqul Islam +14 more
wiley +1 more source
Symmetric centrosymmetric matrix–vector multiplication
The multiplication of an arbitary vector by a symmetric matrix on a sequential machine requires, in general, \(2n^2\) floating-point operations. In this paper, a method for the multiplication of an arbitrary vector by a symmetric centrosymmetric matrix with \(\frac 54n^2+O(n)\) flops is presented.
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A previously unreported coordination motif stabilising single Fe atoms by indigo chelation and pyridyl coordination on Au(111) has been revealed. By using planar tritopic pyridyl linkers (TPyB), extended 2D porous networks of indigo3(TPyB)2Fe6 form. These networks can be crystalline or vitreous and offer an environment where individual coordination ...
Hongxiang Xu +9 more
wiley +1 more source

