Publications by authors named "Yanshan Lu"
Article Synopsis
- - Phase segregation in hydride-forming alloys can continue through multiple hydrogenation and dehydrogenation cycles, specifically in Mg-Mn thin films where Mg and Mn domains are nanoscale segregated.
- - In compositions rich in Mn, the presence of Mn increases the desorption pressure of hydrogen from MgH, indicating a significant thermodynamic destabilization, especially notable at ∼0.30 composition, with pressure changes up to ~2.5 orders of magnitude.
- - This thermodynamic destabilization allows MgH to effectively absorb and release hydrogen even at room temperature, paving the way for innovative and cost-effective hydrogen storage solutions.
Hydrogen storage is a key technology for the advancement of hydrogen and fuel cell power technologies in stationary and portable applications. MgH, an example of a high-capacity hydrogen storage material, has two major material challenges for practical applications: slow hydrogen desorption kinetics and high hydrogen desorption temperature. Numerous studies have reported enhancements in kinetics but only a few in thermodynamics.
View Article and Find Full Text PDFMg-based hydrides are one of the most promising hydrogen storage materials because of their relatively high storage capacity, abundance, and low cost. However, slow kinetics and stable thermodynamics hinder their practical application. In contrast to the substantial progress in the enhancement of the hydrogenation/dehydrogenation kinetics, thermodynamic tuning is still a great challenge for Mg-based alloys.
View Article and Find Full Text PDF[A comparative study on manual and coaxial automated percutaneous lung biopsy].
Zhonghua Jie He He Hu Xi Za Zhi
March 2011
Objective: To evaluate the difference in diagnostic accuracy and complication rate and operational procedures between manual and coaxial automated percutaneous lung biopsy under CT-guidance.
Methods: Ninety-seven patients [aged from 19 - 87 (50 ± 17) years], with undiagnosed pulmonary lesions underwent CT-guided percutaneous lung biopsy from June 2006 to May 2010 in this hospital. The final diagnosis was confirmed by surgical pathology or clinical follow-up.
Objective: To compare the diagnostical yields and complication of conventional transbronchial needle aspiration (TBNA) and endobronchial ultrasound guided transbronchial needle aspiration (EBUS-TBNA) for the mediastinum lesions under the same condition.
Method: Ninety-five patients with mediastinal lesions on chest CT were included. Bronchoscopy was performed under the local anesthesia, TBNA, EBUS-TBNA performed sequentially as a single combined procedure.