3/17/2023 0 Comments Svat petr ryba![]() ![]() The EPR technique makes it possible to detect paramagnetic centers and investigate their nature, with high sensitivity. The results are presented of investigating lunar rock samples returned by the Luna 16 automatic station, using electron paramagnetic resonance (EPR). The results of the two-phase separation experiment verified that reasonable artifact suppression could be achieved by the present method that deals with asymmetric absorption spectra in the EPR imaging of 14N- and 15N-labeled nitroxyl radicals.Įlectron paramagnetic resonance of several lunar rock samples With this improved visualization method and a 750-MHz continuous-wave EPR imager, a temporal change in the distributions of a two-phase paraffin oil and water/glycerin solution system was visualized using lipophilic and hydrophilic nitroxyl radicals, i.e., 2-(14-carboxytetradecyl)-2-ethyl-4,4-dimethyl-3-oxazolidinyloxy (16-DOXYL stearic acid) and 4-hydroxyl-2,2,6,6-tetramethylpiperidine-d17-1-15N-1-oxyl (TEMPOL-d17-15N). This approach can process the asymmetric EPR absorption spectra of the nitroxyl radicals being measured, and can suppress image artifacts due to spectral asymmetry. A hybrid function of Gaussian and Lorentzian lineshapes was used to perform spectral line-fitting to successfully separate the two kinds of nitroxyl radicals. The purpose of this work was to solve the problem of asymmetric EPR absorption spectra in spectral processing. This article describes an improved method for suppressing image artifacts in the visualization of 14N- and 15N-labeled nitroxyl radicals in a single image scan using electron paramagnetic resonance (EPR). Takahashi, Wataru Miyake, Yusuke Hirata, Hiroshi The name of the person authorized to submit the NPI application or to officially change data for a health care provider.Artifact suppression in electron paramagnetic resonance imaging of 14N- and 15N-labeled nitroxyl radicals with asymmetric absorption spectra For individual NPIs the license data is associated to the taxonomy code. ![]() There could be only one primary taxonomy code per NPI record. The primary taxonomy code defines the provider type, classification, and specialization. The date that a NPI record was last updated or changed. The date the provider was assigned a unique identifier (assigned an NPI). The provider other organization name codes are: The code identifying the type of other name. The other organization name is the alternative last name by which the provider is or has been known (if an individual) or other name by which the organization provider is or has been known. These components are often separately licensed or certified by States and may exist at physical locations other than that of the hospital of which they are a component. Hospital components include outpatient departments, surgical centers, psychiatric units, and laboratories. Subparts are the components and separate physical locations of organization health care providers. ![]()
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