Results 51 to 60 of about 18,650 (210)

On relative rational chain connectedness of threefolds with anti-big canonical divisors in positive characteristics

open access: yes, 2016
In this paper we prove two results about the rational chain connectedness for klt threefolds with anti-big canonical divisors in the relative setting.Comment: Minor changes in the statements of the main theorems.
Wang, Yuan
core   +1 more source

XGBoost Meets INLA: A Two‐Stage Spatio‐Temporal Forecasting of Wildfires in Portugal

open access: yesEnvironmetrics, Volume 37, Issue 3, April 2026.
ABSTRACT Wildfires pose a major threat to Portugal, with over 115,000 hectares burned annually on average during 1980–2024, and the country has faced devastating mega‐fires such as those in 2017. Accurate forecasts of wildfire occurrence and burned area are therefore essential for firefighting resource allocation and emergency preparedness.
Chenglei Hu   +5 more
wiley   +1 more source

Genetic diverstiy of Sugarcane yellow leaf virus in a sugarcane selection plot in Guadeloupe (FWI) [PDF]

open access: yes, 2010
THE GENETIC diversity of Sugarcane yellow leaf virus (SCYLV) was investigated in a sugarcane selection plot in Guadeloupe to determine the incidence of the different known virus genotypes (BRA-PER, CUB and REU) in a breeding progeny.
Daugrois, Jean-Heinrich   +5 more
core  

Anytime Lexicographic Enumeration of the Pareto Front in Multi‐Objective Combinatorial Optimisation

open access: yesJournal of Multi-Criteria Decision Analysis, Volume 33, Issue 1, April 2026.
ABSTRACT Multi‐objective combinatorial optimisation problems are widespread in real‐world scenarios, including resource allocation, scheduling and logistics, where multiple competing objectives need to be optimised simultaneously. In industrial contexts, lexicographic optimisation is often used to solve these problems, requiring the decision‐maker (DM)
Marco Foschini   +3 more
wiley   +1 more source

Simulation of Fire Occurrence Based on Historical Data in Future Climate Scenarios and Its Practical Verification

open access: yesFire
Forest fire is one of the dominant disturbances in the forests of Heilongjiang Province, China, and is one of the most rapid response predictors that indicate the impact of climate change on forests.
Mingyu Wang   +5 more
doaj   +1 more source

Statistical calibration of probabilistic medium-range Fire Weather Index forecasts in Europe [PDF]

open access: yesNatural Hazards and Earth System Sciences
Wildfires are increasing in frequency and severity across Europe, which makes accurate wildfire risk estimation crucial for decision-makers and emergency responders.
S. Bohlmann, M. Laine
doaj   +1 more source

Using Perfectly Matched Layer in a GPU simulation of ultrasound NDT

open access: yesResearch and Review Journal of Nondestructive Testing, 2023
Full Waveform Inversion (FWI) is a state-of-the-art method of image reconstruction with promising results for seismology and NDT. FWI estimates the velocity of wave propagation along the inspected object by iteratively comparing acquired data with ...
Felipe Derewlany Gutierrez   +5 more
doaj   +1 more source

Space Correlation Constrained Physics Informed Neural Network for Seismic Tomography

open access: yesJournal of Geophysical Research: Machine Learning and Computation, Volume 3, Issue 2, April 2026.
Abstract Physics‐informed neural networks (PINNs) integrate physical constraints with neural architectures and leverage their nonlinear fitting capabilities to solve complex inverse problems. Tomography serves as a classic example, aiming to reconstruct subsurface velocity models to improve seismic exploration.
Yonghao Wang   +3 more
wiley   +1 more source

The Galois group of random elements of linear groups [PDF]

open access: yes, 2012
Let F be a finitely generated field of characteristic zero and ...
Lubotzky, Alexander, Rosenzweig, Lior
core  

Assessing fire danger classes and extreme thresholds of the Canadian Fire Weather Index across global environmental zones: a review

open access: yesEnvironmental Research Letters
Fire weather indices are one of the basic components of any fire danger early warning system. The Canadian Fire Weather Index (FWI) was developed to indicate the danger due to wildfires in boreal and temperate forests in Canada in the second half of the ...
Lucie Kudláčková   +8 more
doaj   +1 more source

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