Results 61 to 70 of about 288 (167)

Current fire regimes, impacts and the likely changes - IV: tropical Southeast Asia [PDF]

open access: yes, 2013
[About book] A White Paper directed to the United Nations and International Organizations A Publication of the Global Fire Monitoring Center (GFMC) This White Paper is a global state-of-the-art analysis of the role of vegetation fires in the Earth
Weber, Ulrich   +4 more
core   +2 more sources

An improved grid-forming control method with adaptive virtual impedance combining current limitation and transient stability improvement

open access: yesInternational Journal of Electrical Power & Energy Systems
The virtual impedance (VI) control method is widely used to limit fault current for grid-forming converter (GFMC). However, in this article, it is found that the VI deteriorates the transient synchronization stability of the GFMC under grid faults.
Xiaoping Zhou   +8 more
doaj   +1 more source

Strong Electrostatic Control of Excitonic Features in MoS2 by a Free‐Standing Ultrahigh‐κ Ferroelectric Perovskite

open access: yesAdvanced Functional Materials, Volume 34, Issue 52, December 23, 2024.
This work demonstrates the electrostatic control of photoluminescence in monolayer MoS2 using free‐standing BaTiO3 (BTO) at room temperature. BTO enables highly tunable exciton emission with minimal gate voltage. It induces large peak emission shifts and tunable A trion binding energy.
Thomas Pucher   +9 more
wiley   +1 more source

A Generic Voltage Control for Grid-Forming Converters with Improved Power Loop Dynamics

open access: yes, 2022
International audienceGrid-forming converters (GFMCs) provide voltage support and other grid services, such as inertia and droop, in more-electronics power systems.
Qi, Yang   +9 more
core   +1 more source

Distribution scheduling of wheat between different mills of the Grain and Flour Mills Corporation (GFMC)

open access: yes, 2010
This study aimed at measuring the productive efficiency of flour mills and analyzing the efficiency of wheat distribution schedule between different mills of the Grain and Flour Mills Corporation (GFMC).
Dr. Khalid Al- rwis, Jaber elyamy
core  

The Green\u27s function Monte Carlo combined with projected entangled pair state approach to the frustrated $J_1$-$J_2$ Heisenberg model [PDF]

open access: yes
The tensor network algorithm, a family of prevalent numerical methods for quantum many-body problems, aptly captures the entanglement properties intrinsic to quantum systems, enabling precise representation of quantum states.
Lin, He-Yu   +4 more
core   +1 more source

A hybrid method integrating Green’s function Monte Carlo and projected entangled pair states

open access: yes
This paper introduces a hybrid approach combining Green's function Monte Carlo (GFMC) method with projected entangled pair state (PEPS) ansatz. This hybrid method regards PEPS as a trial state and a guiding wave function in GFMC.
Lin, He-Yu   +3 more
core   +1 more source

Magnetism and superconductivity in the t-t '-J model

open access: yes, 2008
We present a systematic study of the phase diagram of the t-t'-J model by using the Green's function Monte Carlo (GFMC) technique, implemented within the fixed-node (FN) approximation and a wave function that contains both antiferromagnetism and d-wave ...
Becca, Federico   +7 more
core   +1 more source

Microwave-Assisted Routes for the Synthesis of Complex Functional Oxides

open access: yesInorganics, 2015
The synthesis of complex functional inorganic materials, such as oxides, can be successfully performed by using microwave irradiation as the source of heat.
Jesús Prado-Gonjal   +2 more
doaj   +1 more source

Mitigating Green's function Monte Carlo signal-to-noise problems using contour deformations

open access: yes
The Green's function Monte Carlo (GFMC) method provides accurate solutions to the nuclear many-body problem and predicts properties of light nuclei starting from realistic two- and three-body interactions.
Kanwar, Gurtej   +3 more
core   +1 more source

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