Results 71 to 80 of about 146,281 (291)

The cost optimal control system based on the Kermack–Mckendrick worm propagation model

open access: yesJournal of Algorithms & Computational Technology, 2016
Although the network worm propagation models are able to predict trends in the spread of the worm, these papers did not consider the economic losses caused by the worm propagation.
Xiao-Jun Tong, Miao Zhang, Zhu Wang
doaj   +1 more source

Spontaneous In‐Plane Anomalous Hall Response Observed in a Ferromagnetic Oxide

open access: yesAdvanced Materials, EarlyView.
Observation of in‐plane anomalous Hall effect (AHE) is demonstrated in a typical ferromagnet SrRuO3. The (111)‐orientated ultrathin films with in‐plane easy axes exhibit spontaneous AHE at zero field, which is controllable via its intrinsic coupling to the in‐plane spin magnetization through higher order effects allowed by symmetry, revealing the ...
Shinichi Nishihaya   +8 more
wiley   +1 more source

Passivity-Based Control of a Doubly Fed Induction Generator System under Unbalanced Grid Voltage Conditions

open access: yesEnergies, 2017
According to the theory of passivity-based control (PBC), this paper establishes a port-controlled Hamiltonian system with dissipation (PCHD) model for a doubly fed induction generator (DFIG) system under unbalanced grid voltage conditions and proposes a
Jiawei Huang, Honghua Wang, Chong Wang
doaj   +1 more source

The Hessian Riemannian flow and Newton's method for Effective Hamiltonians and Mather measures

open access: yes, 2020
Effective Hamiltonians arise in several problems, including homogenization of Hamilton--Jacobi equations, nonlinear control systems, Hamiltonian dynamics, and Aubry--Mather theory.
Gomes, Diogo A., Yang, Xianjin
core   +1 more source

Li‐Well ZnO Memtransistors: High Reliability for Neuromorphic Applications

open access: yesAdvanced Materials, EarlyView.
A novel lithium (Li)‐well ZnO memtransistor integrates transistor switching and nonvolatile memory, akin to ferroelectric field‐effect transistors (FeFETs) and floating gates, while enabling low‐power operation via Li⁺ ion migration. Li⁺ ion migration and switching mechanisms were confirmed by 3D secondary ion mass spectrometry (SIMS).
Ki‐Hoon Son   +4 more
wiley   +1 more source

Port-Hamiltonian systems: an introductory survey [PDF]

open access: yes, 2006
The theory of port-Hamiltonian systems provides a framework for the geometric description of network models of physical systems. It turns out that port-based network models of physical systems immediately lend themselves to a Hamiltonian description ...
Schaft, Arjan van der
core   +4 more sources

Search complexity and resource scaling for the quantum optimal control of unitary transformations

open access: yes, 2010
The optimal control of unitary transformations is a fundamental problem in quantum control theory and quantum information processing. The feasibility of performing such optimizations is determined by the computational and control resources required ...
A. Bryson   +9 more
core   +1 more source

Strain Engineering of Magnetoresistance and Magnetic Anisotropy in CrSBr

open access: yesAdvanced Materials, EarlyView.
Biaxial compressive strain significantly enhances magnetoresistance and critical saturation fields in thin flakes of the 2D magnet CrSBr, along all three crystallographic axes. First‐principles calculations link these effects to strain‐induced increases in exchange interactions and magnetic anisotropy.
Eudomar Henríquez‐Guerra   +19 more
wiley   +1 more source

Mixed-state fidelity susceptibility through iterated commutator series expansion

open access: yes, 2014
We present a perturbative approach to the problem of computation of mixed-state fidelity susceptibility (MFS) for thermal states. The mathematical techniques used provides an analytical expression for the MFS as a formal expansion in terms of the ...
Tonchev, N. S.
core   +1 more source

Artificial Intelligence‐Assisted Workflow for Transmission Electron Microscopy: From Data Analysis Automation to Materials Knowledge Unveiling

open access: yesAdvanced Materials, EarlyView.
AI‐Assisted Workflow for (Scanning) Transmission Electron Microscopy: From Data Analysis Automation to Materials Knowledge Unveiling. Abstract (Scanning) transmission electron microscopy ((S)TEM) has significantly advanced materials science but faces challenges in correlating precise atomic structure information with the functional properties of ...
Marc Botifoll   +19 more
wiley   +1 more source

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