Abstract Top‐down studies of methane (CH4) emissions often use the average ethane‐to‐methane (C2/C1) ratio of wellhead gas in a basin to attribute emissions to thermogenic or biogenic sources. Biogenic CH4 sources (ruminants, wetlands, landfills, and other methanogenic sources) do not co‐produce ethane (C2H6); the presence of C2H6 indicates a ...
Mercy C. Ngulat +10 more
wiley +1 more source
Topology modeling and energy efficiency prediction of parallel chillers based on deep learning. [PDF]
Liu Y, Yang X, Zhang L, Tian Y.
europepmc +1 more source
Abstract The effects of spray on air‐sea fluxes in high‐wind environments have been studied for decades, and several models have been developed and implemented. Owing to the difficulties in making direct measurements in these conditions, however, many process‐level details of spray‐turbulence interaction remain unknown, and certain assumptions must ...
David H. Richter +4 more
wiley +1 more source
Stochastic Uncertainty Analysis of Integrated Blisk-Shaft Rotor Vibrations Using Artificial Neural Networks and Reduced-Order Models. [PDF]
Sun H, Li X, Bai X, Yuan H, Zhang H.
europepmc +1 more source
On Compressible Fluid Flows of Forchheimer‐Type in Rotating Heterogeneous Porous Media
ABSTRACT We study the dynamics of compressible fluids in rotating heterogeneous porous media. The fluid flow is of Forchheimer‐type and is subject to a mixed mass and volumetric flux boundary condition. The governing equations are reduced to a nonlinear partial differential equation for the pseudo‐pressure.
Emine Celik, Luan Hoang, Thinh Kieu
wiley +1 more source
Upon ingestion, milk extracellular vesicles (EVs) carrying bioactive cargo such as microRNAs may survive digestion and remain bioactive. Here, milk from wild‐type and transgenic cows expressing unique microRNAs was used to isolate and characterize four EV populations.
Zeinab Husseini +3 more
wiley +1 more source
Variation patterns of modal characteristics in a CAES multi-shaft integrally geared compressor rotor system under variable operating conditions. [PDF]
Mao J, Gong J, Yuan Y.
europepmc +1 more source
Investigation on the air supply subsystem of PEMFC based on sliding mode control and model predictive control. [PDF]
Pan X, Li M, Wang X.
europepmc +1 more source
Stability Improvement of High-Pressure-Ratio Turbocharger Centrifugal Compressor by Asymmetrical Flow Control-Part II: Nonaxisymmetrical Self-Recirculation Casing Treatment. [PDF]
Zheng X +4 more
europepmc +1 more source
Centrifuge model study on consolidation characteristics of sand-based fill soil subjected to pulse-induced water bag + vacuum preloading. [PDF]
Chen Q, Xu X, Wang G, Zhou W, Feng Y.
europepmc +1 more source

