Results 41 to 50 of about 14,104 (341)

Scalable Liquid‐Phase Exfoliation of h‐BN for Solar‐Reflective and Thermally Stable Polymer Aerogels

Advanced Energy and Sustainability Research, EarlyView.
High‐pressure homogenization exfoliates hexagonal boron nitride (h‐BN) into stable nanosheets, which are incorporated into PVA, CMC, and HEC matrices to form lightweight composite aerogels. Tuning h‐BN loading (0–50 wt%) transforms the structure from porous to densely packed, tailoring optical, thermal, and mechanical properties. An optimized PVA/20 wt%
Mouza Alaryani, Abdullah Solayman, Abdallah Kamal, Kin Liao, Jang‐Kyo Kim, Yahya Zweiri, Yarjan Abdul Samad   +6 more
wiley   +1 more source

Topological Properties of International Commodity Market: How Uncertainty Affects the Linkages?

Agribusiness, EarlyView.
ABSTRACT The study aims to explore the network topology of the international commodity market by examining the interconnections among 21 commodity futures across various categories, including energy, precious and industrial metals, and agriculture. We analyze the market structure of these commodity futures under both low and high uncertainty conditions
Ibrahim Yagli, Bayram Deviren
wiley   +1 more source

Influence of Turbulence Models on Simulated Flow Characteristics Over Ogee Spillways

Journal of Studies in Civil Engineering
The study investigated the simulation of flow characteristics over an Ogee-type spillway surface. This research utilizes a Flow-3D numerical model that builds upon the findings from prior experimental data and numerical models simulated by Ansys with a ...
Mangur Rasul Khidhir, Kaywan Othman Ahmed, Jamil Bahrami, Mohsen Isari, Marif Mahmood Karim   +4 more
doaj   +1 more source

Numerical Investigation of The Effect of Impeller Blade Angle for Stirred Tank

Sakarya Üniversitesi Fen Bilimleri Enstitüsü Dergisi, 2022
In this study, the most widely used Rushton turbine in the industry was discussed, and the effect of different blade angles on the mixture was investigated numerically.
Dogan Engin Alnak, Ferhat Koca, Yeliz Alnak   +2 more
doaj   +1 more source

Calculations of Turbulent Flows with Pressure Gradients using a k-.EPSILON. Model.

TRANSACTIONS OF THE JAPAN SOCIETY OF MECHANICAL ENGINEERS Series B, 1993
A k-e turbulence model is developed to calculate wall turbulent shear flows under various pressure gradient conditions. In the present model, we set the dissipation rate of turbulent energy at a wall equal to zero, though the wall limiting behavior of velocity fluctuations is reproduced exactly.
Hirofumi Hattori, Yasutaka Nagano
openaire   +3 more sources

Experimental and Numerical Investigation of Flow under Sluice Gates [PDF]

, 2012
The flow characteristics upstream and downstream of sluice gates are studied experimentally and numerically using Reynolds averaged Navier-Stokes two-dimensional simulations with a volume of fluid method.
Belaud, Gilles, Cassan, Ludovic
core   +2 more sources

Return and Volatility Spillovers Among Major Cotton Markets

Agribusiness, EarlyView.
ABSTRACT This study explores return and volatility transmission among major cotton markets. Several events have disrupted cotton supply and demand in recent years, leading to heightened price volatility and significant shifts in market interconnections.
Susmitha Kalli, Berna Karali, Yangxuan Liu, Munisamy Gopinath   +3 more
wiley   +1 more source

ChatCFD: A Large Language Model‐Driven Agent for End‐to‐End Computational Fluid Dynamics Automation with Structured Knowledge and Reasoning

Advanced Intelligent Discovery, EarlyView.
Chat computational fluid dynamics (CFD) introduces an large language model (LLM)‐driven agent that automates OpenFOAM simulations end‐to‐end, attaining 82.1% execution success and 68.12% physical fidelity across 315 benchmarks—far surpassing prior systems.
E Fan, Kang Hu, Zhuowen Wu, Jiangyang Ge, Jiawei Miao, Yuzhi Zhang, He Sun, Weizong Wang, Tianhan Zhang   +8 more
wiley   +1 more source

Ultra‐Efficient Kidney Stone Fragment Removal via Spinner‐Induced Synergistic Circulation and Spiral Flow

Advanced Intelligent Systems, EarlyView.
Leveraging spinning‐induced localized suction, the spinner device enables ultra‐efficient removal of kidney stone fragments, capturing a larger quantity of fragments from distances exceeding 20 mm. The spinner significantly improves the efficiency and effectiveness of stone fragment removal by reducing operative time, increasing stone‐free rates, and ...
Yilong Chang, Jasmine Guadalupe Vallejo, Yangqing Sun, Ruike Renee Zhao   +3 more
wiley   +1 more source

Multi-column modelling of lake Geneva for climate applications

Scientific Reports, 2022
The interaction between large inland water bodies and the atmosphere impacts the evolution of regional weather and climate, which in turn affects the lake dynamics, thermodynamics, ice-formation, and, therefore, ecosystems. Over the last decades, various
Romain Gaillard, Marjorie Perroud, Stéphane Goyette, Jérôme Kasparian   +3 more
doaj   +1 more source