Wei-guo Qu

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We investigated the preparation of bulk dense nanocrystalline BaTiO3 and Ni–Cu–Zn ferrite ceramics using an unconventional two-step sintering strategy, which offers the advantage of not having grain growth while increasing density from about 75% to above 96%. Using nanosized powders, dense ferrite ceramics with a grain size of 200 nm and BaTiO3 with a grain(More)
Immunocompromised individuals are susceptible to pulmonary Aspergillus infections, whereas invasive Aspergillus infection is extremely rare in the presence of normal immunity. A case of larynx-tracheobronchial-pulmonary aspergillosis in an immunocompetent 57-year-old female host who was successfully treated with amphotericin-B and voriconazole is reported(More)
One of the important topics in theoretic studies on nursing diagnosis, still a new concept in China, is to explore the logical reasoning process from collecting data to making diagnoses. This paper introduced an epistemological model which mentions every step in detail on how to make a nursing diagnosis. The model was built on the basis of analyzing the(More)
Phases of nonlinear double tearing modes are studied numerically. The first two phases lead to the formation and growth of magnetic islands and are followed by a fast reconnection phase to complete the process, driven by a process of neighboring magnetic separatrices merging and magnetic islands coupling. The fast growth can be understood as a result of the(More)
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