Results 131 to 140 of about 63,733 (300)

Edge Fluid Turbulence Simulations of Stellarators With GRILLIX

Contributions to Plasma Physics, EarlyView.
ABSTRACT The edge fluid turbulence code GRILLIX has recently been extended from axisymmetric tokamak geometries to support 3D stellarator configurations. Following successful proof‐of‐principle simulations published in Stegmeir et al., we present here a comprehensive simulation of the Wendelstein 7‐AS stellarator.
Andreas Stegmeir, Christoph Pitzal, Barnabas Csillag, Miguel Madeira, Marion Finkbeiner   +4 more
wiley   +1 more source

A novel construction approach for the pore structure model principally focuses on the controllable roundness of rock particles

Deep Underground Science and Engineering, EarlyView.
Particle rounding effects comparison of different methods: (a), (b), and (c) are the rounding results using the B‐spline curve method with different R; (d), (e), and (f) are the results of vertex rounding substitution method with different rounding radii.
Jiabin Dong, Ning Yang, Yi Jin, Ying Wu, Dandan Liu, Junling Zheng, Jingyan Zhao   +6 more
wiley   +1 more source

Thermomechanical Impact on the Frequency of Amalgamated Plates Based on Shear Deformation Theory of First Order

Journal of Mathematics
The vibration behavior of amalgamated plates of constant thickness under thermomechanical effects is investigated based on the first-order shear deformation theory (FSDT).
Saira Javed
doaj   +1 more source

Spline functions, convex curves and mechanical quadrature [PDF]

Bulletin of the American Mathematical Society, 1958
openaire   +2 more sources

Rockburst prediction based on data preprocessing and hyperband‐RNN‐DNN

Deep Underground Science and Engineering, EarlyView.
A data preprocessing workflow is proposed to address challenges in rockburst data analysis. Coupled algorithms preprocess the data set, and hyperband optimization is used to enhance RNN performance. Results show that preprocessing improves accuracy, while dense layers enhance model stability and prediction performance.
Yong Fan, Chenxi Yin, Guangdong Yang, Shengyong Ding, Bin Tian   +4 more
wiley   +1 more source

Trends in marine species distribution models: a review of methodological advances and future challenges

Ecography, EarlyView.
Correlative species distribution models (SDMs) are quantitative tools in biogeography and macroecology. Building upon the ecological niche concept, they correlate environmental covariates to species presence to model habitat suitability and predict species distributions.
Moritz Klaassen, Tiago A. Marques, Filipe Alves, Marc Fernandez   +3 more
wiley   +1 more source

Dynamic performance analysis of harmonic gears based on finite element and rack approximation method

Jixie chuandong
ObjectiveHarmonic gears are key components of robotic transmission systems, and their dynamic performance directly determines the service life and operational stability of the entire system.
WEN Xia, HE Xueming, WANG Run, MU Yanming   +3 more
doaj  

Association of the PaO2/RDW ratio with 7-day mortality and risk of early invasive mechanical ventilation in ICU patients with delirium associated with ARDS: A retrospective cohort study from the MIMIC-IV database.

PLoS ONE
BackgroundDelirium is a common complication in patients with acute respiratory distress syndrome (ARDS) and is associated with poor clinical outcomes.
Jiao Xu, Jun Jin, Shan Zou, Si-Hao Zheng, Qing-Shan Zhou, Jiang-Tao Deng   +5 more
doaj   +1 more source

Ultra‐High Strength and Environmentally Stable Fluorinated Solid‐State Ion‐Conductive Elastomers with Folding‐Paper‐Structured Triboelectric Nanogenerators for Wave Energy Harvesting

ENERGY &ENVIRONMENTAL MATERIALS, EarlyView.
In this work, a polyurethane‐based fluorinated SICEs with excellent mechanical properties (7.35 MPa and 61.4 MJ m−3), conductivity (4.2 × 10−4 S cm−1), and harsh environmental resistance were prepared by a “three birds with one stone” strategy that combines multiple interactions with fluorine effects. The paper‐folding TENG is capable of harvesting not
Zequan Li, Fangyan Ou, Wei Tang, Fuqi Wang, Zhichao Zhang, Ting Xie, Chuang Ning, Wenyu Pan, Wei Gao, Shuangliang Zhao   +9 more
wiley   +1 more source

N‐terminal pro‐brain natriuretic peptide and cardiorenal outcome in patients with anaemia in chronic kidney disease

ESC Heart Failure, Volume 12, Issue 2, Page 848-858, April 2025.
Abstract Aims Blood levels of N‐terminal pro‐brain natriuretic peptide (NT‐proBNP) may be modified by low renal clearance and anaemia. The aim of this study was to investigate the impact of the blood NT‐proBNP level on cardiovascular and renal outcomes in patients with these two manifestations.
Hiroshi Nishi, Masaomi Nangaku, Tadashi Sofue, Tatsuo Kagimura, Ichiei Narita   +4 more
wiley   +1 more source