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154 results on '"Wu, Haoxi"'

24. Multiple dynamin family members collaborate to drive mitochondrial division

Author

Lee, Jason E., Westrate, Laura M., Wu, Haoxi, Page, Cynthia, and Voeltz, Gia K.

Subjects
Physiological aspects, Methods, DNA sequencing -- Methods, Mitochondrial DNA -- Physiological aspects
Abstract

Author(s): Jason E. Lee [1]; Laura M. Westrate [1]; Haoxi Wu [1]; Cynthia Page [1]; Gia K. Voeltz (corresponding author) [1] Mitochondria cannot be generated de novo ; they must [...]

Published
2016
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29. Graphene Oxide Carburization Enhanced Ionization Efficiency for TIMS Isotope Ratio Analysis of Uranium at Trace Level

Author

Qin Zhen, Xu Jie, Xiong Penghui, Wu Haoxi, Hailu Zhang, Chen Lumin, and Zhang Ling

Subjects
Isotope, Isotopes of uranium, Environmental analysis, Nuclear forensics, 010401 analytical chemistry, Analytical chemistry, chemistry.chemical_element, Thermal ionization mass spectrometry, Uranium, 010402 general chemistry, 01 natural sciences, 0104 chemical sciences, Analytical Chemistry, Certified reference materials, chemistry, Ionization
Abstract

Isotope analysis of trace uranium is important in nuclear safeguards and nuclear forensics, which requires the analytical methodologies with high sensitivity, accuracy, and precision. As one of the most powerful techniques in isotopic measurement, thermal ionization mass spectrometry (TIMS) usually suffers from its relatively low sensitivity in ultratrace measurements. To overcome this limitation, we have developed a new filament carburization technique for TIMS, with graphene oxide (GO) as the ionization enhancer. A high and steady ionization efficiency of ∼0.2% for uranium was achieved in single-filament mode, which was 10× the classical double-filament method. With total evaporation (TE) measurements, this method was validated with certified reference materials (CRMs) at the picogram level, and the relative uncertainties for n(235U)/ n(238U) were as low as the ∼1% level. The enhancement mechanism of GO's promoting effect on uranium ionization was attributed to the uniform microstructure facilitating energy transfer and formation of carbides. This approach provides an alternative simple and rapid method for trace uranium isotope analysis with high sensitivity and excellent repeatability. Filament carburization and uranium loading could be accomplished within 10 min. This technique has great advantage in analysis of trace uranium isotope ratios and can be applied in the researches of environmental analysis and nuclear forensics.

Published
2019
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43. Inhibitive Effect of NO3 - on the Corrosion Behavior of U-0.79wt%Ti Alloy in NaCl Solution.

Author

Cai Dingzhou, Chen Xianglin, Wu Haoxi, Wang Ming, Yang Shanli, Sang Ge, and Li Yingru

Abstract

Copyright of Rare Metal Materials & Engineering is the property of Northwest Institute for Nonferrous Metal Research and its content may not be copied or emailed to multiple sites or posted to a listserv without the copyright holder's express written permission. However, users may print, download, or email articles for individual use. This abstract may be abridged. No warranty is given about the accuracy of the copy. Users should refer to the original published version of the material for the full abstract. (Copyright applies to all Abstracts.)

Published
2020

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