Results 91 to 100 of about 1,581 (150)

Quantifying the economic effects of different fishery management regimes in two otherwise similar fisheries. [PDF]

PLoS One, 2023
Liese C, Crosson S.
europepmc   +1 more source

Fire occurrence zoning from local to global scale in the European Mediterranean basin: implications for multi-scale fire management and policy

iForest - Biogeosciences and Forestry, 2016
This study proposes and evaluates a relatively new concept for fire occurrence zoning based on documented historical fire records. The proposed method creates continuous kernel density surfaces based on wildland fire ignition observations.
Koutsias N, Allgöwer B, Kalabokidis K, Mallinis G, Balatsos P, Goldammer Johann G   +5 more
doaj   +1 more source

A Constrained Path Quantum Monte Carlo Method for Fermion Ground States

, 1995
We propose a new quantum Monte Carlo algorithm to compute fermion ground-state properties. The ground state is projected from an initial wavefunction by a branching random walk in an over-complete basis space of Slater determinants.
A. Parola, D. M. Ceperley, D. M. Ceperley, E. Y. Loh, Jr., E. Y. Loh, Jr., G. Fano, G. Sugiyama, J. B. Anderson, J. Carlson, J. E. Gubernatis, J. E. Hirsch, K. E. Schmidt, M. H. Kalos, M. H. Kalos, N. Furukawa, S. B. Fahy, Shiwei Zhang, Shiwei Zhang   +17 more
core   +1 more source

Spin-averaged $B_c$ Spectrum in a Cornell-type Potential Using VMC Baseline and GFMC Evolution

In this work, the spin-averaged $B_c$ spectrum is computed in a naive Cornell framework, treating the meson as a nonrelativistic system in a spin-independent potential. The Cornell parameters are calibrated directly to the spin-averaged $B_c$ tower by anchoring the $1S$ centroid and scanning a grid in $(σ,κ)$, with the additive constant $V_0$ fixed at ...
openaire   +2 more sources

Doping quantum dimer models on the square lattice

, 2006
A family of models is proposed to describe the motion of holes in a fluctuating quantum dimer background on the square lattice. Following Castelnovo et al. [Ann. Phys. (NY) 318, 316 (2005)], a generalized Rokhsar-Kivelson Hamiltonian at **finite doping**
Arnaud Ralko, Didier Poilblanc, Fabien Alet, Fabien Trousselet, Federico Becca, Frédéric Mila, G. Misguich, H. J. Schulz   +7 more
core   +3 more sources

Forest Fires Under Abnormal Weather Conditions in Central Siberia [PDF]

Сибирский лесной журнал, 2014
Occurrence of forest fires and their development to large and catastrophic wildfires are considered for Central Siberia taiga subzones under abnormal drought conditions.
E. N. Valendik, Ye. K. Kisilyakhov, V. A. Ryzhkova, E. I. Ponomarev, J. G. Goldammer   +4 more
doaj  

Superfluid to Mott-insulator transition in Bose-Hubbard models

, 2007
We study the superfluid-insulator transition in Bose-Hubbard models in one-, two-, and three-dimensional cubic lattices by means of a recently proposed variational wave function.
Federico Becca, Manuela Capello, Michele Fabrizio, N. F. Mott, Sandro Sorella, W. Krauth   +5 more
core   +1 more source

Properties of nuclei up to $A=16$ using local chiral interactions

, 2018
We report accurate quantum Monte Carlo calculations of nuclei up to $A=16$ based on local chiral two- and three-nucleon interactions up to next-to-next-to-leading order.
Carlson, J., Gandolfi, S., Lonardoni, D., Lynn, J. E., Schmidt, K. E., Schwenk, A., Wang, X. B.   +6 more
core   +1 more source

World-Line Path Integral Study of Supersymmetry Breaking in the Wess-Zumino Model

, 2003
We study supersymmetry breaking in the lattice N=1 Wess-Zumino model by the world-line path integral algorithm. The ground state energy and supersymmetric Ward identities are exploited to support the expected symmetry breaking in finite volume.
Beccaria, Matteo, Rampino, Carlo
core   +1 more source

Oscillation Suppression of Grid-Following Converters by Grid-Forming Converters with Adaptive Droop Control

Energies
The high penetration of renewable energy sources (RESs) and power electronics devices has led to a continuous decline in power system stability. Due to the instability of grid-following converters (GFLCs) in weak grids, the grid-forming converters (GFMCs)
Lifeng Qiu, Miaosong Gu, Zhongjiang Chen, Zhendong Du, Ligang Zhang, Wenrui Li, Jingyi Huang, Jingyang Fang   +7 more
doaj   +1 more source