Results 191 to 200 of about 13,575 (293)

Mixing Behavior of Natural Gas and Hydrogen in a High‐Efficiency Vane (HEV) Static Mixer

Energy Science &Engineering, EarlyView.
Static mixers play a crucial role in the safe transport of hydrogen‐blended natural gas. Computational fluid dynamics (CFD) was employed to investigate the effects of structural parameters of the HEV static mixer on the mixing behavior and homogeneity of natural gas and hydrogen. The modeling approach was well validated against experimental data.
Xiang Zhou, Jun Zheng, Weiqing Xu, Dewen Kong, Yan Shi, Maolin Cai   +5 more
wiley   +1 more source

A quantile cure model with partially functional covariate effects. [PDF]

Stat Methods Med Res
Chen CM, Peng Y.
europepmc   +1 more source

Managing for resilience with ecological structure: Portfolio effects in the Laurentian Great Lakes

Frontiers in Ecology and the Environment, EarlyView.
Combined effects of global change, including land conversion, biological invasions, and overexploitation, have degraded the resilience of ecosystems and the services they provide. Here, we identify key ecological structures and processes that can be targeted by management to improve resilience at scales ranging from single species to entire landscapes.
Kayla RS Hale, Timothy J Fernandes, Reilly F O'Connor, Charlotte A Ward, Kevin Cazelles, Joey R Bernhardt, Cindy Chu, Henrique C Giacomini, Alexander Koeberle, Marten A Koops, Stuart A Ludsin, Andrew M Muir, Tom Stewart, Caroline Tucker, Tyler D Tunney, Kevin S McCann   +15 more
wiley   +1 more source

Incorporating external risk information with the Cox model under population heterogeneity: applications to trans-ancestry polygenic hazard scores. [PDF]

J R Stat Soc Ser A Stat Soc
Wang D, Ye W, Zhu J, Xu G, Tang W, Zawistowski M, Fritsche LG, He K.   +7 more
europepmc   +1 more source

Hole transporting materials in inverted flexible perovskite solar cells: Challenges, progress, and perspectives

FlexMat, EarlyView.
The buried interface is a critical determinant of efficiency and stability in inverted flexible perovskite solar cells (IFPSCs). This Perspective summarizes advances in hole transporting materials for IFPSCs, including polymeric, small‐molecule, inorganic, and hybrid systems, and discusses the prospects and feasibility of emerging molecular design and ...
Xianglang Sun, Jiawei Leng, Zhong'an Li
wiley   +1 more source

Geometry-dependent reachability, homogenization, and redundancy in multi-view photoacoustic illumination. [PDF]

Biomed Opt Express
Cao N, Cao H.
europepmc   +1 more source

A Simple Proof of the Asymptotic Efficiency of 3SLS Relative to 2SLS Estimators [PDF]

Economic Inquiry, 1973
openaire   +1 more source

Forecasting Volatility of Commodity, Currency, and Stock Markets: Evidence From Markov‐Switching Multifractal Models

Journal of Forecasting, EarlyView.
ABSTRACT This paper adopts a bivariate Markov‐switching multifractal (BMSM) model to reexamine comovement in SV between commodity, foreign exchange (FX), and stock markets. After the 2007–2008 global financial crisis understanding volatility linkages and the correlation structure between these markets becomes very important for risk analysts, portfolio
Ruipeng Liu, Mawuli Segnon, Oguzhan Cepni, Rangan Gupta   +3 more
wiley   +1 more source

Lévy Diffusion Under Power-Law Stochastic Resetting. [PDF]

Entropy (Basel)
Liu J, Li Y, Marchesoni F.
europepmc   +1 more source

Forecasting With Dynamic Factor Models Estimated by Partial Least Squares

Journal of Forecasting, EarlyView.
ABSTRACT Dynamic factor models (DFMs) have found great success in nowcasting and short‐term macroeconomic forecasting when incorporating large sets of predictive information. The factor loadings are typically estimated cross‐sectionally with principal component analysis (PCA) or maximum likelihood (ML), which ignore whether the factors have predictive ...
Samuel Rauhala
wiley   +1 more source