Results 221 to 230 of about 105,471 (295)

The Brittle Ring Test: A Simple and Reliable Method for Evaluating the Fracture Strength of Technical Ceramics—Theoretical and Experimental Investigations

open access: yesInternational Journal of Ceramic Engineering &Science, Volume 8, Issue 2, March 2026.
The study reviews existing formulas for the Brittle Ring test and introduces an adapted equation that most accurately determines the fracture strength of ceramic rings. Valid strength values can be obtained with minimal sample preparation when suitable geometric ratios are maintained, demonstrating the method's efficiency for technical ceramics ...
Achim Rübling   +8 more
wiley   +1 more source

Is Wildfire Suppression in Giant Sequoia Groves a Problem, a Solution, or Neither?

open access: yesEcology and Evolution, Volume 16, Issue 3, March 2026.
There is much debate and speculation about whether recent large wildfires in giant sequoia groves have caused an unnatural excess of high‐severity fire, due to fire suppression and fuel accumulation. I found that fire of all severities remains in deficit since fire suppression began, relative to pre‐suppression levels, and found no correlation between ...
Chad T. Hanson
wiley   +1 more source

Capacity Optimization and Hierarchical Robust Control Verification of Wind–Solar–Diesel Hybrid Microgrid Based on Improved Multi‐Objective Grey Wolf Algorithm

open access: yesEngineering Reports, Volume 8, Issue 3, March 2026.
To address high‐altitude power transmission challenges, a composite controller was developed to suppress strong wind interference, demonstrating the effectiveness of hierarchical control in complex dynamic systems. Hardware‐in‐the‐loop experiments verified the robustness of the control algorithm, providing methodological support for developing ...
Shaofeng Bai, Jun Zhong
wiley   +1 more source

Study on the Law of Multi‐Fracture Propagation in Different Fracturing Fluid Viscosity

open access: yesEnergy Science &Engineering, Volume 14, Issue 3, Page 1339-1352, March 2026.
Samples and equipment Sample preparation Test equipment Analysis of test results Fracture propagation morphology Influence of fracturing fluid viscosity on crack initiation time/(fracture initiation pressure) Evolution law of injection pressure Cumulative relation curve of pressure–time–acoustic ABSTRACT Using the TCHFSM‐I large‐scale accurate triaxial
Zhixing Zhang   +4 more
wiley   +1 more source

Quantifying Parametric Influence on Cuttings Transport in Deviated Deep Wells Using Global Sensitivity Analysis Methods

open access: yesEnergy Science &Engineering, Volume 14, Issue 3, Page 1398-1415, March 2026.
Cuttings transport simulation workflow. ABSTRACT Efficient cuttings transport is essential for wellbore stability and minimizing non‐productive time in deviated and horizontal wells. This study applies global sensitivity analysis (GSA) to evaluate the influence of 14 drilling parameters on cuttings transport using WellPlanTM hydraulic simulations ...
Esraa A. Refaie   +3 more
wiley   +1 more source

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