In order to cope with the demand for deep peak regulation of high-parameter coal-fired units, this paper uses numerical simulation methods systematically explore influence different secondary wind oxygen enrichment concentrations on combustion performance and characteristics singlefurnace double-cut round boilers during low-load operation, so as provide theoretical support actual operation powe...

To clarify the organic matter (OM) enrichment of Lishui Sag, factors influencing variable abundance OM in Lingfeng Formation are studied using geochemical data. The source rocks have medium–high total carbon (TOC) values (0.53–3.56%). main type kerogen is II2-III. Compared to shallow marine subfacies rocks, TOC delta front higher. distribution biomarkers shows that redox environment rock sub-ox...

Toxic polycyclic aromatic hydrocarbons (PAHs) are frequently released into the environment from anthropogenic sources. PAH remediation strategies focus on biological processes mediated by bacteria. The availability of oxygen in polluted environments is often limited or absent, and only bacteria able to thrive in these conditions can be considered for bioremediation strategies. To identify bacte...

Helium is the second most common chemical species in Universe. The study of helium abundance has potential to unravel evolution and within galaxies. In this study, we provide an empirical calibration for singly ionized abundance: $12+\log_{10}({\rm He}^+/{\rm H}^+)$, based on emission line flux ratio He$_{\lambda5876}$/H$\alpha$ from Galactic extragalactic HII regions compiled literature. Based...

The Atacama Desert, on the western margin of Central Andes, hosts some world's largest porphyry copper deposits (PCDs). Despite a hyperarid climate, many these PCDs have undergone secondary “supergene” enrichment, whereby has been concentrated via groundwater-driven leaching and reprecipitation, yielding supergene profiles containing valuable records weathering landscape evolution. We combine h...

background low-cost anaerobic sequencing batch reactor (asbr), which is widely used for controlling high-organic wastewater, is an effective method to remove chemical oxygen demand (cod). objectives the main objectives was evaluating the feasibility of using asbr in the treatment of synthetic dairy wastewater, determining its removal efficiency, and assessing the effect of temperature on operat...

We report here a method for enhancing the non-oxygen functionalization of graphene nanosheets. This improvement is taken place by increasing oxygen functional groups as active reaction sites on oxide cold plasma treatment followed substitution octadecylamine (ODA). The FTIR, XPS, XRD, RAMAN, and TGA analyses verified that modification could increase amount 61%. plasma-treated functionalized nan...