Characterization of ammonium polyuranate powders from a continuous precipitator

Abstract

Ammonium polyuranate powders produced in a continuous, well-mixed precipitator were characterized by means of electron microscopy. The powders were qualitatively analyzed with the scanning electron microscope and the elementary crystallites were quantitatively analyzed with the transmission electron microscope. precipitation. The results were fit to a kinetic theory of continuous A phase analysis was also preformed by X-ray powder diffraction.

Atmospheric River Rapids and Their Role in the Extreme Rainfall Event of April 2023 in the Middle East

“…Satellite‐derived precipitation estimates from the Integrated Multi‐Satellite Retrievals for the Global Precipitation Measurement (GPM) mission (IMERG; Huffman et al., 2020; Pradhan et al., 2022), available every 30‐min at 0.1° (∼11.1 km) resolution, and ground‐based observations from weather stations that comprise the National Oceanic and Atmospheric Administration's Global Surface Summary of the Day (Lackey, 2020b) catalog, are used to assess the precipitation generated by the AR. In‐situ hourly meteorological observations (Herzmann, 2024) and up to twice daily sounding profiles (Oolman, 2024) at airport stations are considered to inspect the local effects of the ARs. The moisture sources that contributed to the AR are identified through back‐trajectories obtained with the Hybrid Single‐Particle Lagrangian Integrated Trajectory (HYSPLIT; Stein et al., 2015) model driven by ERA‐5 data.…”

“…ERA‐5 reanalysis data, available at ∼27 km spatial resolution and hourly temporal resolution, is extracted from the Copernicus Climate Data Store's website (Hersbach et al., 2024a, 2024b). Sounding profiles available at best twice daily are downloaded from the University of Wyoming's website (Oolman, 2024) while ground‐based hourly observations at airport stations, Meteorological Aerodrome Reports, are freely available at the Iowa State University Iowa Environmental Mesonet's website (Herzmann, 2024). The National Oceanic and Atmospheric Administration (NOAA) Global Surface Summary of the Day (GSOD) data is downloaded from the NOAA's National Centers for Environmental Information website (Lackey, 2020a).…”

The Role of the Toroidal Vortex in Cumulus Clouds' Entrainment and Mixing

“…The BOMEX thermodynamic profiles used to initialize the simulation are from Siebesma et al. (2003), while the profiles for the Hawaiian cloud from Supporting Information are publicly available at Oolman (2023). The data used for producing the figures is publicly available as Matlab files at Eytan et al.…”