Results 81 to 90 of about 19,319 (303)

On Identities of a Ternary Quaternion Algebra [PDF]

Communications in Algebra, 2011
This article studies a simple 4-dimensional ternary algebra 𝒜 which appears analogously to the quaternions from the Lie algebra 𝔰𝔩(2). We describe the heights 1 and 2 identities, and the derivations of 𝒜. Based on 𝒜, some ternary enveloping algebras for ternary Filippov algebras are constructed.
Beites, P. D., Nicolás, A. P., Pozhidaev, A. P., Saraiva, P.   +3 more
openaire   +3 more sources

Simultaneous Multi‐Resonant Thermally Activated Delayed Fluorescence and Room Temperature Phosphorescence from Biluminescent Nitrogen‐Containing Indolocarbazoles

Advanced Science, EarlyView.
An extremely rare type of organic biluminescent emission is reported that consists of delayed emission resulting from both the fluorescence (multi‐resonance thermally activated delayed fluorescence) and phosphorescence spectra at room temperature, and the lifetimes of the two processes exhibit opposing dependence with temperature.
Oliver S. Lee, Aidan P. McKay, David B. Cordes, Stuart L. Warriner, Malte C. Gather, Eli Zysman‐Colman   +5 more
wiley   +1 more source

Advancing human activity recognition with quaternion-based recurrent neural networks

Automatika
Human activity recognition (HAR) stands as a vital nexus in the synthesis of healthcare, sports analytics, and human–computer interaction. This research introduces a groundbreaking approach to HAR by amalgamating the multidimensional strengths of ...
S. Gayathri Devi, Ratnala Venkata Siva Harish, N. Nalini, K. D. V. Prasad, N. Nagabhooshanam   +4 more
doaj   +1 more source

Free Subgroups of Quaternion Algebras [PDF]

Proceedings of the American Mathematical Society, 1993
Using the theory of group actions on trees, we shall prove that if a quaternion algebra over Laurant polynomials is not split then a certain congruence subgroup of the group of norm one elements is a free group. This generalizes and gives an easy, conceptually simpler proof than that given by Pollen for the field of real numbers.
openaire   +2 more sources

Spintronic Memtransistor Leaky Integrate and Fire Neuron for Spiking Neural Networks

Advanced Electronic Materials, EarlyView.
Spintronic memtransistor neurons based on domain walls enable energy‐efficient, field‐gated, and current‐controlled LIF functionality for neuromorphic computing, as demonstrated. When integrated into spiking neural network architectures, these devices achieve >96% pattern recognition accuracy, demonstrating high performance, scalability, and mem ...
Aijaz H. Lone, Meng Tang, Daniel N. Rahimi, Xuecui Zou, Dongxing Zheng, Hossein Fariborzi, Xixiang Zhang, Gianluca Setti   +7 more
wiley   +1 more source

Multiresponsive Color‐Tunable Phosphorescence With Matrix‐Confined Clusters

Aggregate, EarlyView.
The molecule with cluster‐triggered emission mechanisms is embedded in polymer matrix, the phosphorescence properties of multiclusters are size‐dependent and exhibit different responses to various stimuli, including temperature, concentration, and excitation, which synergistically induce color‐range tunable time‐dependent phosphorescence color behavior.
Lihui Hou, Ting Wang, Siufung Yu, Xuhui Xu, Xue Yu   +4 more
wiley   +1 more source

Hybrid rule‐based and optimization‐driven framework for the synthesis of end‐to‐end optimal pharmaceutical processes

AIChE Journal, EarlyView.
Abstract The modernization of pharmaceutical manufacturing is driving a shift from traditional batch processing to continuous alternatives. Synthesizing end‐to‐end optimal (E2EO) manufacturing routes is crucial for the pharmaceutical industry, especially when considering multiple operating modes—such as batch, continuous, or hybrid (containing both ...
Yash Barhate, Daniel J. Laky, Daniel Casas‐Orozco, Gintaras V. Reklaitis, Zoltan K. Nagy   +4 more
wiley   +1 more source

Orders of quaternion algebras with involution

Journal of Number Theory, 2018
We introduce the notion of maximal orders over quaternion algebras with orthogonal involution and give a classification over local fields, and a partial classification over algebraic number fields.
openaire   +3 more sources

In Situ Graph Reasoning and Knowledge Expansion Using Graph‐PRefLexOR

Advanced Intelligent Discovery, EarlyView.
Graph‐PRefLexOR is a novel framework that enhances language models with in situ graph reasoning, symbolic abstraction, and recursive refinement. By integrating graph‐based representations into generative tasks, the approach enables interpretable, multistep reasoning.
Markus J. Buehler
wiley   +1 more source

Graph Attention Neural Networks for Interpretable and Generalizable Prediction of Janus III–Vi Van Der Waals Heterostructures

Advanced Intelligent Discovery, EarlyView.
A crystal graph neural network based on the attention mechanism is proposed in this work. The model dynamically weights features through the attention mechanism, enabling precise prediction of properties of material from structural features. Here, taking Janus III–VI van der Waals heterostructures as a representative case, the properties have been ...
Yudong Shi, Zhao Zheng, Yinggan Zhang, Zhou Cui, Peng Lin, Cuilian Wen, Baisheng Sa, Zhimei Sun   +7 more
wiley   +1 more source