Results 191 to 200 of about 9,203 (285)

Physical controls on heterogeneous mesopelagic biogeochemistry. [PDF]

Commun Earth Environ
Freilich MA, Dove LA, Merk K.
europepmc   +1 more source

A Comprehensive Review of the Key Factors Affecting Biogas Production From Anaerobic Digestion of Organic Waste

CleanMat, Volume 3, Issue 2, Page 74-98, June 2026.
Efficient conversion of organic waste to biogas depends on the coordinated optimization of feedstock composition, pretreatment, operational parameters, reactor design, and microbial community dynamics. This review highlights how these interacting factors improve methane yield and process stability, advancing anaerobic digestion as a practical pathway ...
Ahmed Alengebawy, Yi Ran, Sara Taha Abdelkhalek, Tarek Mahrous, Ahmed Ragheb, Mohamed Samer, Ping Ai   +6 more
wiley   +1 more source

Entropy-Mediated Lattice Distortion for Tailored Dielectric Polarization to Improve L-Band Electromagnetic Wave Absorption. [PDF]

Nanomicro Lett
Ding H, Li Y, Wang Y, Song W, Wang X, Han X, Xu P, Du Y.   +7 more
europepmc   +1 more source

Optimized Mesh Zoning for Dam Bottom Outlet CFD Simulations Using Richardson Extrapolation and Grid Convergence Analysis

Engineering Reports, Volume 8, Issue 6, June 2026.
A Richardson‐extrapolation–based mesh zoning framework is developed to optimize CFD simulation accuracy and computational efficiency in dam bottom outlet flows. Using six mesh scenarios and multi‐parameter convergence analysis (pressure, velocity, TKE), the method identifies an optimal fine‐resolution zone around the gate and progressively coarser ...
Mohammad Masoud Vaseti, Ali Akbar Akhtari, Reza Tarinejad   +2 more
wiley   +1 more source

Bed sill effectiveness in reducing flow separation at open channel confluences: an openfoam-VOF 3D CFD study. [PDF]

Sci Rep
Sandilya SS, Das BS, Pandey AK.
europepmc   +1 more source

Computational Rheo‐Hydrodynamic Analysis of Non‐Newtonian Blood Flow Through a Tilted Ellipsoidal Stenosed Vascular Segment

Engineering Reports, Volume 8, Issue 6, June 2026.
Non‐Newtonian blood flow through multiple tilted ellipsoidal stenoses is numerically investigated using the DeKee‐Turcotte‐Papanastasiou model. The results reveal asymmetric velocity fields, elevated wall shear stress, significant pressure drops, and shear‐dependent thermal effects, highlighting the critical hemodynamic risks associated with eccentric ...
Azad Hussain, Huma Naz
wiley   +1 more source

Urban-resolved scales amplifies torrential rainfall in coastal megacities. [PDF]

Sci Rep
Teja KR, Bale R, Gupta A.
europepmc   +1 more source

Scaling analysis of the turbulent kinetic energy at the entrainment zone in sheared convective boundary layers

, 2008
Pino, D., Vilà-Guerau de Arellano, J.
core  

Microstructural, Magnetic, and Tribological Optimization of Nano‐ZrO2 Reinforced Magnesium Matrix Composites Fabricated via Powder Metallurgy

Engineering Reports, Volume 8, Issue 6, June 2026.
Magnesium–ZrO2 nanocomposites fabricated via powder metallurgy exhibited enhanced density, magnetic saturation (up to 14 emu/g), and wear resistance. Uniform nanoparticle dispersion improved bonding and reduced delamination, demonstrating strong potential for lightweight, multifunctional applications in aerospace and automotive engineering.
Thanikodi Sathish, A. Johnson Santhosh
wiley   +1 more source

Diel and eddy driven changes in microbial gene expression and biogeochemistry in the oceanic chlorophyll maximum. [PDF]

Nat Commun
Peoples LM, Eppley JM, Barone B, Hobson BW, Karl DM, Kieft B, Marin R, Preston CM, Romano AE, Ryan JP, Scholin CA, Wilson ST, Zhang Y, Church MJ, DeLong EF.   +14 more
europepmc   +1 more source