Search

Your search keyword '"Lei, XIANG"' showing total 8 results
Start Over Author "Lei, XIANG" Publisher hindawi limited
8 results on '"Lei, XIANG"'

3. An Automatic Framework Using Space-Time Processing and TR-MUSIC for Subsurface and Through-Wall Multitarget Imaging

Author

Si-hao Tan, Zhen Shu, Hui-lin Zhou, and Lei Xiang

Subjects
Signal processing, Article Subject, Computational complexity theory, Computer science, business.industry, Space time, Inversion (meteorology), lcsh:HE9713-9715, Electromagnetic radiation, Imaging algorithm, lcsh:Cellular telephone services industry. Wireless telephone industry, Computer vision, Multiple signal classification, lcsh:Electrical engineering. Electronics. Nuclear engineering, Artificial intelligence, Electrical and Electronic Engineering, business, lcsh:TK1-9971, Direct wave
Abstract

We present an automatic framework combined space-time signal processing with Time Reversal electromagnetic (EM) inversion for subsurface and through-wall multitarget imaging using electromagnetic waves. This framework is composed of a frequency-wavenumber (FK) filter to suppress direct wave and medium bounce, a FK migration algorithm to automatically estimate the number of targets and identify target regions, which can be used to reduce the computational complexity of the following imaging algorithm, and a EM inversion algorithm using Time Reversal Multiple Signal Classification (TR-MUSIC) to reconstruct hidden objects. The feasibility of the framework is demonstrated with simulated data generated by GPRMAX.

Published
2012

8. Liver Damage Associated with Polygonum multiflorum Thunb.: A Systematic Review of Case Reports and Case Series.

Author

Lei, Xiang, Chen, Jing, Ren, Jingtian, Li, Yan, Zhai, Jingbo, Mu, Wei, Zhang, Li, Zheng, Wenke, Tian, Guihua, and Shang, Hongcai

Subjects
*MEDICAL information storage & retrieval systems, *LIVER diseases, *CASE studies, *BOTANIC medicine, *CHINESE medicine, *MEDLINE, *ONLINE information services, *RESEARCH funding, *SYSTEMATIC reviews
Abstract

Objective. To summarize the characteristics and analysis of relevant factors and to give references for prevention and further study of liver damage associated with Polygonum multiflorum Thunb. (HSW), we provide a systematic review of case reports and case series about liver damage associated with HSW. Methods. An extensive search of 6 medical databases was performed up to June 2014. Case reports and case series involving liver damage associated with HSW were included. Results. This review covers a total of 450 cases in 76 articles. HSW types included raw and processed HSW decoction pieces and many Chinese patent medicines that contain HSW. Symptoms of liver damage occur mostly a month or so after taking the medicine, mainly including jaundice, fatigue, anorexia, and yellow or tawny urine. Of the 450 patients, two cases who received liver transplantation and seven who died, the remaining 441 cases recovered or had liver function improvement after discontinuing HSW products and conservative care. Conclusion. HSW causes liver toxicity and may cause liver damage in different degrees and even lead to death; most of them are much related to long-term and overdose of drugs. Liver damage associated with HSW is reversible, and, after active treatment, the majority can be cured. People should be alert to liver damage when taking HSW preparations. [ABSTRACT FROM AUTHOR]

Published
2015
Full Text
View/download PDF

Catalog

Books, media, physical & digital resources
See catalog results