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Showing 1 to 15 of 15 for “"ISCO"”.
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Geochemical Impacts From Permanganate Oxidation Based on Field Scale Assessments.
<p>In situ chemical oxidation (ISCO) using permanganate is a technology for treatment of organic hazardous wastes. This research is a review of 30 permanganate (MnO<sub>4</sub><sup>-</sup>) ISCO sites to determine whether there are long term impacts on groundwater quality due to the introduction of …
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Self-consistent dynamical and radiative models of low-luminosity active galactic nuclei
… the equations of one dimensional relativistic viscous disk evolution and use these results to motivate a smoothly varying time-dependent scaling between simulation and physical units. We show that this time-dependent scaling procedure effectively maps the transient GRMHD simulation data onto a …
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Black Hole Accretion Systems
… flow around a black hole using the nonradiative viscous hydrodynamic (VHD), Newtonian magnetohydrodynamic (MHD), and general relativistic MHD (GRMHD) equations of motion, which are integrated numerically. I wrote the VHD and nonrelativistic MHD numerical codes, and coauthored the GRMHD code …
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The accretion process in neutron-star low-mass X-ray binaries
… probably at the innermost stable circular orbit (ISCO), predicted by general relativity. This allows us to derive upper limits of magnetic fields on the NS surface of the above four atoll sources. The apparent emission area of the boundary layer is small, ~1/16 of the whole NS surface, but is …
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A spectral and timing study of MAXI J1820+070 during outburst
… The inner disk radius was constrained to ≲ 2.6 ISCO, extending down to 1.5 ISCO before the state transition. The disk temperature steadily increases from 0.71 keV, peaking at 0.8 keV. Our simplistic spectral model prefers different inclinations at various stages of the outburst, varying from ∼ …
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Degradation of the Insensitive Munitions Compound 3-Nitro-1,2,4-triazol-5-one (NTO) via Sequential Reducing-Oxidizing Conditions
… oxidant used for in situ chemical oxidation (ISCO). The results demonstrated that lower concentrations of KMnO4 and shorter timescales are needed to oxidize MENA and ATO than to oxidize DNAN and NTO. In another experiment, NTO was anaerobically reduced to ATO by soil microorganisms and then …
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Does it pay to be mature? Assessing the performance of a mature bioretention cell seven years post-construction
… performance since installation were quantified. ISCO automated stormwater samplers collected inflow and outflow composite samples from the cell, which were then analyzed for fecal indicator bacteria (total coliforms, E. coli, and enterococci), total suspended solids (TSS), total nitrogen (TN), …
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Efficiency of PAHs removal from clayey soil using supercritical fluid extraction
… classical methods. The efficiency of using SFE (ISCO 200 model) for clay soil (illite) was investigated. SFE tests were performed on various compositions of clayey soils. Phenanthrene was used to examine the extraction efficiency of PAHs from clayey soil. Phenanthrene concentration in soil …
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Gravitational Waves From Perturbed Kerr Black Holes: Two Investigations
… of the region of validity (as measured by v/vISCO, where v ISCO is the orbital velocity at the innermost stable circular orbit) is only weakly dependent on a. Independently of a, the inclusion of angular multipoles up to and including ℓ = 5 in the numerical flux is necessary to achieve the …
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The supercritical fluid extraction and chromatographic analysis of fatty acids in blue cheese
… acetic acid was done at 680 atm using a SFX 2-10 Isco Supercritical Fluid Extractor (Model 100DX, Lincoln, NE). The supercritical fluid chromatographic separations were conducted by a Lee Scientific SFC, Model $\beta$501 (Salt Lake City, UT) and a capillary column (17 m x 50 $\mu$m i.d.) with a …
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Identifying nitrate transport mechanisms and export dynamics using water age modeling and concentration-discharge relationships
… data from August 2022 to November 2023. An ISCO Automatic Sampler located at the UER outlook collected daily river water samples from April 2022 to November 2023, which were measured for water isotopes alongside weekly precipitation samples. The overall goal of this study is to connect …
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Turbidity and Nutrient Response to Storm Events in the Wissahickon Creek, Suburban Philadelphia, PA
… during storms using high frequency loggers and ISCO automatic samplers. Stream assessments were done at each site to characterize in-stream physical parameters, bank vegetation, and algae cover. High frequency turbidity data suggests that the turbidity is locally sourced, as turbidity peaks at …
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In Situ Oxidation of 1,4-Dioxane with Persulfate-Based Oxidation Activated by Iron Minerals
… in situ activated in situ chemical oxidation (ISCO) will depend on numerous site-specific factors including groundwater hydraulics and contaminant concentrations in addition to geochemical properties of the geomedia and groundwater.
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Let me be part of the plan - Experiences of information and information needs after colorectal cancer surgery
… Data concerning health status (ASA), occupation (ISCO-88) and tumour stage were obtained from the computerized records. In Papers III and IV, patients and their next of kin were interviewed separately two times. The main focus was on their experiences of information at discharge and their …
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Spectral fingerprinting
… sediment was sampled automatically by means of ISCO samplers at the catchment as well as at the five major subcatchment outlets during flood events, and stored fine sediment from the channel bed was collected from 14 cross-sections along the main river. Artificial mixtures of known contributions …