Publications by authors named "Yi-Xin Hua"

Objective: We examined the safety, efficacy, and caregiver satisfaction of a remote monitoring system for home-based non-invasive positive pressure ventilation of children and infants with upper airway obstruction.

Methods: Fourteen pediatric patients (age 50 days to 12 years) treated in our ENT unit from March 2009 to July 2011 and requiring home-based non-invasive positive pressure ventilation were enrolled in this feasibility study; one patient underwent CPAP and the other 13 patients underwent Bi-PAP. User satisfaction with the monitoring system was assessed by questionnaires given at regular intervals to parents and attending physicians.

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The use of room-temperature ionic liquids (RTILs) as green media for electrochemical application has attracted great attention recently. However, the effects of RTILs used as additives for electrodeposition of metals have hardly been explored. In the present work, the electrochemical deposition of copper was investigated on a pure copper plate from acid cupric sulfate solutions in the presence of RTILs (1-butyl-3-methylimidazolium tetrafluoroborate, [bmim] BF4) additive by cyclic voltammetric technique, scanning electron microscope (SEM), and X-ray diffraction (XRD).

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The use of room-temperature ionic liquids (RTILs) as green media for preparation of nanomaterials is very attractive. Herein, anisotropic silver nanoparticles were synthesized via chemical reduction silver nitrate with sodium hypophosphite, employing brønsted acidic functionalized ionic liquid 1-butyl-3-methyl-imidazolium dihydrogen phosphate ([bmim] H2PO4), which acted both as reaction medium and as a capping/shape-directing agent. The structure, morphology and optical absorption properties of anisotropic silver nanoparticles were characterized by X-ray diffraction (XRD), scanning electron microscopy (SEM), and UV-Visible (UV-Vis) absorption spectra.

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In the present work, the electrochemical deposition of silver was investigated on a glassy carbon electrode from AgNO3 solutions in the presence of RTILs (1-butyl-3-methyl imidazolium nitrate, [bmim]NO3) additive by cyclic voltammetric technique, scanning electron microscope (SEM) and X-ray photon spectroscopy (XPS). For comparison, the electrodeposition of silver from [bmim]NO3-free AgNO3 solution was also investigated. The voltammograms showed that the cathodic peak potential shifted toward more negative potential and the cathodic peak current decreased when 5 x 10(-6) mol x L(-1) [bmim]NO3 was added into AgNO3 solutions.

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