Results 71 to 80 of about 31,979 (265)
Advanced Science, EarlyView.We propose an optical ferroelectric field‐effect transistor, composed of a MoS2/CIPS heterostructure, demonstrates the feasibility of all‐optical nonvolatile memory, neuromorphic computing, and logic‐in‐memory operations. The device exhibits reversible light‐controlled memory states, retina‐like synaptic plasticity, and wavelength‐selective ...
Jingjie Niu +7 more
wiley +1 more source
On Weakly von Neumann regular rings
, 2009 In this paper, we define and study a particular case of von Neumann regular notion called a weak von Neumann regular ring. It shown that the polynomial ring $R[x]$ is weak von Neumann regular if and only if $R$ has exactly two idempotent elements. We provide necessary and sufficient conditions for $ R=A\propto E $ to be a weak von Neumann ring.
Kabbour, Mohammed, Mahdou, Najib
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Smart Optogenetics for Real‐Time Automated Control of Cardiac Electrical Activity
Advanced Science, EarlyView.We are able to stop dangerous heart‐rhythm spirals before they fully form. Within about 100 ms, it pinpoints the spiral's tiny central tip (≈0.9 mm) using light‐based sensing and machine learning, then shines targeted light to shut it down. This fast, precise, closed‐loop approach detects, targets, and terminates arrhythmias in real time.
Shanliang Deng +15 more
wiley +1 more source
K 1 of a Commutative von Neumann Regular Ring [PDF]
Proceedings of the American Mathematical Society, 1972 Let A be a commutative regular ring (in the sense of von Neumann), and let q be an ideal in A. Then K 1 ( A , q ) = U ( A , q ) {K_1}(A,q) = U(A,q) .
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Semilattices of finitely generated ideals of exchange rings with finite stable rank
, 2004 We find a distributive (v, 0, 1)-semilattice S of size $ aleph\_1$ that is not isomorphic to the maximal semilattice quotient of any Riesz monoid endowed with an order-unit of finite stable rank.
Wehrung, Friedrich
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Advanced Science, EarlyView.A plasmonic optoelectronic memristor based on Te nanowires‐Au nanoparticles/ι‐carrageenan enables IR‐programmed and visiblelight‐erased non‐volatile conductance. The all‐photonic write/erase scheme supports in‐sensor logic and real‐time motion detection in darkness.
Jingyao Bian +7 more
wiley +1 more source
Indecomposable Decomposition and couniserial dimension
, 2014 Dimensions like Gelfand, Krull, Goldie have an intrinsic role in the study of theory of rings and modules. They provide useful technical tools for studying their structure.
Ghorbani, A., Jain, S. K., Nazemian, Z.
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Advanced Science, EarlyView.High‐throughput screening led to the identification of 67 Z‐scheme heterojunctions (comprising 2D magnetic transition metal halides and non‐magnetic transition metal chalcogenides). For CrI3/MoTe2 and CrI3/WTe2, electronic structure analysis demonstrated that synergistic crystallographic point group and built‐in electric field effects generate a ...
Hongyang Ren +8 more
wiley +1 more source
Von Neumann Regularity of V-Rings with Artinian Primitive Factor Rings [PDF]
Proceedings of the American Mathematical Society, 1988 LetRRbe a ring whose right primitive factor rings are artinian. It is a known result that ifRRis von Neumann regular, thenRRis a rightVV-ring, that is, all simple rightRR-modules are injective. In the present work we prove that the converse holds.
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Cyclically presented modules, automorphism-invariant modules and poor modules [PDF]
, 2015 In this thesis, we study three kinds of modules: cyclically presented modules in relation to factorization of elements in a noncommutative integral domain, automorphism-invariant modules and poor modules.
Nguyen, Khanh Tung
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