Results 61 to 70 of about 1,581 (150)
Advanced Electronic Materials, Volume 11, Issue 9, June 2025.The synchronization ability of vortex spin‐torque nano‐oscillators is examined across three dynamical regimes: the gyrotropic mode, the dynamic C‐state, and a transition regime. The transition regime exhibits the strongest synchronization ability, and it can be driven into a dynamic state with no ability to synchronize (dynamic C‐state) by slightly ...
Miguel Romera +11 more
wiley +1 more source
The current landscape fire management in Ukraine and strategy for its improvement
Environmental & Socio-economic Studies, 2021 Recurrent wildfires in Ukraine exert severe impacts on the environment, human health and security as well as damage to private and public assets. From 2007 to 2020, the frequency of large wildfires has increased and reached a level that has not occurred ...
Soshenskyi Oleksandr +5 more
doaj +1 more source
, 2009 We propose a new ansatz for the ground-state wave function of quantum many-body systems on a lattice. The key idea is to cover the lattice with plaquettes and obtain a state whose configurational weights can be optimized by means of a Variational Monte ...
Boninsegni, Massimo +3 more
core +1 more source
Earth's Future, Volume 13, Issue 4, April 2025.Abstract The USA, Canada and Australia are members of an international partnership that shares firefighting resources, including equipment and personnel. This partnership is effective because fire risk between Australia and North America is historically asynchronous. However, climate change is causing longer fire seasons in both regions, increasing the
Doug Richardson +6 more
wiley +1 more source
Induced Ti magnetization at La0.7Sr0.3MnO3 and BaTiO3 interfaces
APL Materials, 2016 In artificial multiferroics hybrids consisting of ferromagnetic La0.7Sr0.3MnO3 (LSMO) and ferroelectric BaTiO3 epitaxial layers, net Ti moments are found from polarized resonant soft x-ray reflectivity and absorption. The Ti dichroic reflectivity follows
Yaohua Liu +8 more
doaj +1 more source
Green Function Monte Carlo with Stochastic Reconfiguration
, 1998 A new method for the stabilization of the sign problem in the Green Function Monte Carlo technique is proposed. The method is devised for real lattice Hamiltonians and is based on an iterative ''stochastic reconfiguration'' scheme which introduces some ...
D. ten Haaf +8 more
core +2 more sources
Per‐Unit Modeling Standards for Simplified Calculation in Grid‐Forming Converter Systems
Electronics Letters, Volume 61, Issue 1, January/December 2025.The topology and control scheme of GFMC systems. ABSTRACT This letter proposes a per‐unit modeling standard (PUMS) for simplified calculations in grid‐forming converter (GFMC) systems, which can improve and simplify the modeling process. The proposed PUMS can solve the bottlenecks and difficulties of calculation caused by the upper limits of ...
Mufan Wang +6 more
wiley +1 more source
IET Generation, Transmission &Distribution, Volume 19, Issue 1, January/December 2025.Grid‐forming converters (GFMCs) are expected to replace synchronous generators (SGs) in future power systems with high penetration of power electronics. This paper proposes a controller parameter optimization method for GFMCs by maximizing the domain of attraction estimates using sum‐of‐squares programming, significantly improving transient stability ...
Yang Liu +5 more
wiley +1 more source
, 2003 We calculate properties of A=6 system using the accurate charge-dependent nucleon-nucleon (NN) potential at fourth order of chiral perturbation theory.
Caurier, E., Navratil, P.
core +2 more sources
Auxiliary Field Diffusion Monte Carlo calculation of nuclei with A<40 with tensor interactions [PDF]
, 2007 We calculate the ground-state energy of 4He, 8He, 16O, and 40Ca using the auxiliary field diffusion Monte Carlo method in the fixed phase approximation and the Argonne v6' interaction which includes a tensor force.
Fantoni, S. +3 more
core +1 more source