Results 131 to 140 of about 781,590 (289)

Modeling proppant transport and settling in a 3D propagating fracture

Deep Underground Science and Engineering, EarlyView.
A versatile multiphysics tool is presented for simulating the complex processes involved in hydraulic fracturing treatments. The model couples fracture opening and propagation, variable‐density slurry flow, and proppant particle transport within the multiphysics object‐oriented simulation environment framework, based on two‐phase mixture equations and ...
Robert Egert, Aimé Fournier, Wencheng Jin   +2 more
wiley   +1 more source

Dynamic Active Site Mechanism and Compositional Tuning in LaxSr1−xCoyFe1−yO3 (LSCF) Perovskites Toward Efficient Oxygen Evolution

EcoEnergy, EarlyView.
A dynamic active site mechanism through cooperative metal–lattice oxygen interactions enables efficient oxygen evolution in LSCF perovskites without relying on oxygen vacancy formation, where the La/Sr ratio governs the intrinsic activity of LSCF and Co incorporation provides secondary enhancement, establishing a general composition‐guided paradigm for
Seong Chan Cho, Hajin Lee, Jun Ho Seok, Jae Hun Seol, Hung Ngo Manh, Chi Ho Lee, Sang Uck Lee   +6 more
wiley   +1 more source

Efficient stress topology optimization based on multigrid preconditioned conjugate gradient method

Jixie qiangdu
ObjectiveLarge calculation scale and slow convergence speed exist in structural stress topology optimization. Considering the computational requirements of large-scale finite element analysis, the multigrid preconditioned conjugate gradient (MGCG) method
GAO Dawei, CAI Shenli, SHI Guijie, ZHANG Lunping   +3 more
doaj  

Anatomy of a SPAN Particle: A Four‐Level Structural Framework for Lithium–Sulfur Batteries

EcoEnergy, EarlyView.
Sulfurized polyacrylonitrile (SPAN) is a key cathode material for batteries. Borrowing the four‐level classification of protein structure, this perspective demonstrates SPAN's structural complexity into well‐defined levels, giving researchers clear research boundaries and targets at each level for improving battery performance.
Jinkwan Jung, Hyunseok Moon, Matthew Miyagishima, Jasper Zhang, Ying Shirley Meng, Shen Wang   +5 more
wiley   +1 more source

The regulation of stem cell fate and its application in neural regeneration

Interdisciplinary Medicine, EarlyView.
Regulating stem cell fate is crucial for neural regeneration. This review summarizes key physical, biological, and chemical strategies and their applications in repairing nerve injuries, providing new insights for regenerative medicine. Abstract Regulating the fate of stem cells (SCs) is a key technical problem in the field of regenerative medicine and
Yuexin He, Xingyu Chen, Minghong He, Zhe Li   +3 more
wiley   +1 more source

Fast Forward and Inversion of Full Tensor Gravity Gradients Based on the BTTB Matrix Structure

Donghua Ligong Daxue Xuebao. Ziran Kexue Ban
[Objective] Full-tensor gravity gradient data contain richer high-frequency information compared to traditional gravity anomaly data, providing advantages such as higher information capacity, improved accuracy in resolving subsurface anomalies, and ...
XIONG Luofan, JIA Zhengyuan, HU Bin, ZHANG Gang, ZHANG Guibin   +4 more
doaj   +1 more source

Corticosterone and Mitochondrial Efficiency Are Associated With Changes in DNA Oxidative Damage During an Acute Stress Response in Leach's Storm‐Petrels (Hydrobates leucorhous)

Journal of Experimental Zoology Part A: Ecological and Integrative Physiology, EarlyView.
ABSTRACT The ability of organisms to effectively respond to challenges is critical for survival. We investigated how an acute stressor affected corticosterone, mitochondrial function, and DNA oxidative damage in a wild population of Leach's storm‐petrels (Hydrobates leucorhous).
Kayla E. Lichtner, Jack K. Dziubek, Nicole A. Joseph, Sarah E. Chapman, Tori J. Chace, Dongxiao Sun, Zachary T. Bitzer, Antoine Stier, Robert A. Mauck, Patricia L. Jones, Mark F. Haussmann   +10 more
wiley   +1 more source

Representation of Long‐Term Observed UK Winter Precipitation Trends and Variability in UKCP18 Global Climate Models

International Journal of Climatology, EarlyView.
Evaluating historical precipitation trends is complicated by interactions between variability in atmospheric circulation and thermodynamic forcing. This study assesses 1901–2023 UK winter precipitation trends in UK Climate Projections 2018 (UKCP18) global climate models using dynamical adjustment to separate circulation‐driven and non‐dynamical ...
James G. Carruthers, Hayley J. Fowler, Daniel Bannister, Selma B. Guerreiro   +3 more
wiley   +1 more source

Direct reconstruction of cardiac PET kinetic parametric images using a preconditioned conjugate gradient approach. [PDF]

Med Phys, 2013
Rakvongthai Y, Ouyang J, Guerin B, Li Q, Alpert NM, El Fakhri G.   +5 more
europepmc   +1 more source

From Rare to Recurrent: Intensifying Hot–Dry Extremes Across Romania

International Journal of Climatology, EarlyView.
Romania has undergone a marked shift toward more frequent and spatially extensive compound hot–dry months since the 1990s, with persistent hotspots in the eastern Moldavian Plateau and the lower Danube–Bărăgan–Black Sea lowlands and comparatively buffered conditions at higher elevations.
Viorica Nagavciuc, Monica Ionita
wiley   +1 more source