Abstract In this paper we examine the factors that shape distribution of molecular gas surface densities on 150 pc scale across 67 morphologically diverse star-forming galaxies in PHANGS-ALMA CO (2–1) survey. Dividing each galaxy into radial bins, measure density contrasts, defined here as ratio between a fixed high percentile and reference level bin. This captures faint floor extends bright fi...

Pipeline transportation has become an effective way to transport sludge from wastewater treatment plants due its high efficiency, low operating cost, and environmental pollution. Before designing optimizing the sludge-conveying pipeline, it is first necessary analyze rheological properties of sludge. In this paper, activated with varying volume concentrations (Cw) 2.38%, 3.94%, 5.39% was used a...

Research funded under the Gulf of Mexico Initiative provided new insights into biogeochemical processes influencing fate petroleum chemicals entering from Deepwater Horizon (DWH) accident. This overview that work is based on detailed recent reviews aspects biogeochemistry as well activities supported by US Natural Resource Damage Assessment. The main topics presented here are distribution hydro...

We present high-fidelity CO(1-0) imaging of molecular gas across the full star-forming disk M83, using ALMA's 12m, 7m, and TP arrays MIRIAD package. The data have a mass sensitivity resolution 10^4Msun 40 pc. coverage shows that characteristics change radially from center to outer disk. distribution coherent large-scale structures in inner part, including central concentration, bar offset ridge...

Wire and Arc Additive Manufacturing (WAAM), which exhibits high deposition rate low production cost, is a promising method for fabricating large-sized composite components. In this work, the WAAM process applied to fabricate steel matrix components by introducing WC/Fe powder into molten pool through gravity-driven side feeding. The effects of WC fraction on microstructure, mechanical propertie...

Restoration techniques were explored for the patterns, materials, and surface pigments of decoration art Kaiping Diaolou Villages, a world cultural heritage site in southern China. Field investigation was supplemented by scanning electron microscopy, microscopic Raman spectroscopy characterization, colorimetric tests, tensile tests. Materials concepts restoration analyzed. used to characterize ...