Results 141 to 150 of about 6,156 (248)

Survival Analysis of Fatigue Lifetime in Aged Elastomers Using Weibull and Cox Regression Models

Fatigue &Fracture of Engineering Materials &Structures, Volume 49, Issue 9, Page 3854-3873, September 2026.
ABSTRACT Fatigue tests conducted on elastomers inherently exhibit significant variability. Aging may induce stiffening and embrittlement, leading to premature failures outside the specimen gauge length and resulting in right‐censored data. Combined with the limited number of specimens, this leads to large uncertainties in fatigue lifetime estimation ...
M. Caillat, H. Madeira, P.‐Y. Le Gac, M. Le Gall, E. Verron   +4 more
wiley   +1 more source

Small‐scale adaptation to geothermal soil heating in a perennial herb revealed by combining crosses and transplantations

New Phytologist, Volume 251, Issue 5, Page 3008-3020, September 2026.
Path diagrams showing the results of piecewise structural equation models examining how fitness (total number of seeds in flowering individuals) of Cerastium fontanum depended on temperature at planting site, temperature difference, mating type, and flowering time (FFD, first flowering date) in each of the two study years.
Alicia Valdés, Vigdís F. Helmutsdóttir, Bryndís Marteinsdóttir, Johan Ehrlén   +3 more
wiley   +1 more source

Bayesian Inference for Multivariate Monotone Densities

Scandinavian Journal of Statistics, Volume 53, Issue 3, Page 1206-1229, September 2026.
ABSTRACT We consider a nonparametric Bayesian approach to estimation and testing for a multivariate monotone density. Instead of following the conventional Bayesian approach of imposing a prior that satisfies the monotonicity restriction, we place a prior on the step heights via binning and a Dirichlet distribution. The resulting posterior distribution
Kang Wang, Subhashis Ghosal
wiley   +1 more source

Attention‐Based Stochastic Simulation of Climate‐Informed Spatiotemporal Flood Risk for Multisite Insurance Portfolios

Geophysical Research Letters, Volume 53, Issue 15, 16 August 2026.
Abstract Flood risk is correlated in space and time, challenging insurance systems that rely on diversification across assets. Financial instruments governing flood coverage are typically structured as 1–5‐year contracts, exposing portfolios to climate‐driven risk at interannual‐to‐decadal scales.
Adam Nayak, Pierre Gentine, Upmanu Lall
wiley   +1 more source

Stop Using Limiting Stimuli as a Measure of Sensitivities of Energetic Materials

Propellants, Explosives, Pyrotechnics, Volume 51, Issue 8, Page 1386-1400, August 2026.
ABSTRACT Accurately estimating the sensitivity of explosive materials is a potentially life‐saving task that requires standardised protocols across nations. One of the most widely applied procedures worldwide is the so‐called ‘1‐In‐6’ test from the United Nations (UN) Manual of Tests in Criteria, which estimates a ‘limiting stimulus’ for a material. In
Dennis Christensen, Geir Petter Novik
wiley   +1 more source

Nonparametric quantile regression for spatio-temporal processes

33 pages, 2 figures and accompanying supplementary ...
Deb, Soudeep, Neves, Claudia, Roy, Subhrajyoty   +2 more
openaire   +2 more sources

Improving Geomagnetic Perturbation Forecasts in the Southern Hemisphere via Kernel‐Based Encoding of Mirror Symmetry

Journal of Geophysical Research: Machine Learning and Computation, Volume 3, Issue 4, August 2026.
Abstract Accurate forecasting of geomagnetic perturbations is essential for assessing space weather risk of geomagnetic activities. Thanks to decades of magnetometer observations from world‐wide distributed networks and upstream solar wind observations at L1, data‐driven modeling of global geomagnetic perturbations has become increasingly feasible ...
Hongfan Chen, Gabor Toth, Yang Chen, Shasha Zou, Xun Huan   +4 more
wiley   +1 more source

A Next‐Generation Snow Albedo Parameterization for Climate Modeling Using Constrained Machine Learning

Journal of Geophysical Research: Machine Learning and Computation, Volume 3, Issue 4, August 2026.
Abstract We demonstrate a data‐driven parameterization framework for snow albedo evolution using a constrained auto‐regressive neural differential equation that directly predicts snow albedo change from standard meteorological inputs. After training with multi‐year in situ and satellite observations from a wide variety of locations, the scheme ...
A. Charbonneau, K. Deck, T. Schneider
wiley   +1 more source

Asymptotic Normality of Single Functional Index Quantile Regression for Functional Data with Missing Data at Random

Ekonometria
This work addresses the problem of the nonparametric estimation of the regression function, namely the conditional distribution and the conditional quantile in the single functional index model (SFIM) under the independent and identically distributed ...
Anis Allal, Nadia Kadiri, Abbes Rabhi
doaj  

Investigating the EKC and LCC Hypotheses for BRICS Countries: The Role of Economic Complexity in Environmental Degradation

Natural Resources Forum, Volume 50, Issue 3, Page 1087-1103, August 2026.
ABSTRACT The number of studies in literature examining the relationship between economic complexity and environment continues to increase. In those studies, either environmental degradation is represented by a limited indicator, or a traditional empirical method is preferred.
Tunahan Haciimamoglu
wiley   +1 more source