LabID-base/OpenAlex-Afillation huggingface dataset:
The established differential pressure model for binary fire extinguishing agent enables accurate concentration measurement
Year: 2025
Type: article
Language: en
Topic: Fire dynamics and safety research
Authors and affiliations:
raw_author_name: Rui Chen
raw_affiliation_strings: State Key Laboratory of Fire Science, University of Science and Technology of China, Hefei, Anhui, 230026, China
raw_author_name: Song Lu
raw_affiliation_strings: State Key Laboratory of Fire Science, University of Science and Technology of China, Hefei, Anhui, 230026, China
raw_author_name: Hui Shi
raw_affiliation_strings: State Key Laboratory of Fire Science, University of Science and Technology of China, Hefei, Anhui, 230026, China
raw_author_name: Qiyong Zhou
raw_affiliation_strings: State Key Laboratory of Fire Science, University of Science and Technology of China, Hefei, Anhui, 230026, China
raw_author_name: Heping Zhang
raw_affiliation_strings: State Key Laboratory of Fire Science, University of Science and Technology of China, Hefei, Anhui, 230026, China
Effects of electrode geometry on electrokinetic removal of heavy metals and salt ions from co-contaminated soils
Year: 2025
Type: article
Language: en
Topic: Electrokinetic Soil Remediation Techniques
Authors and affiliations:
raw_author_name: Öznur Karaca
raw_affiliation_strings: Department of Geological Engineering, Çanakkale Onsekiz Mart University, Türkiye
raw_author_name: Sonam Taneja
raw_affiliation_strings: Department of Environmental Engineering, Delhi Technological University, New Delhi, 110042, India
raw_author_name: Çetin Kantar
raw_affiliation_strings: Department of Environmental Engineering, Çanakkale Onsekiz Mart University, Türkiye
raw_author_name: Anil Kumar Haritash
raw_affiliation_strings: Department of Environmental Engineering, Delhi Technological University, New Delhi, 110042, India
Is self-supervised learning enough to fill in the gap? A study on speech inpainting
Year: 2025
Type: article
Language: en
Topic: Speech Recognition and Synthesis
Authors and affiliations:
raw_author_name: Ihab Asaad
raw_affiliation_strings: Friedrich Schiller Universität Jena, Jena, Germany
Univ. Grenoble Alpes, CNRS, Grenoble-INP, GIPSA-lab, Grenoble, F-38000, France
raw_author_name: Maxime Jacquelin
raw_affiliation_strings: Univ. Grenoble Alpes, CNRS, Grenoble-INP, GIPSA-lab, Grenoble, F-38000, France
Vogo, Bernin, 38190, France
raw_author_name: Olivier Perrotin
raw_affiliation_strings: Univ. Grenoble Alpes, CNRS, Grenoble-INP, GIPSA-lab, Grenoble, F-38000, France
raw_author_name: Laurent Girin
raw_affiliation_strings: Univ. Grenoble Alpes, CNRS, Grenoble-INP, GIPSA-lab, Grenoble, F-38000, France
raw_author_name: Thomas Hueber
raw_affiliation_strings: Univ. Grenoble Alpes, CNRS, Grenoble-INP, GIPSA-lab, Grenoble, F-38000, France
A dual-responsive metal-polyphenol nanomedicine based on targeting LAT1 via levodopa and ROS amplification for precise treatment of breast cancer
Year: 2025
Type: article
Language: en
Topic: Nanoplatforms for cancer theranostics
Authors and affiliations:
raw_author_name: Xiao He
raw_affiliation_strings: Chongqing Key Laboratory of Medicinal Chemistry and Molecular Pharmacology, Chongqing University of Technology, Chongqing, 400054, China
Chongqing Key Laboratory of Medicinal Chemistry and Molecular Pharmacology, Chongqing University of Technology, Chongqing 400054, China
raw_author_name: Zhongmin Wang
raw_affiliation_strings: Chongqing Key Laboratory of Medicinal Chemistry and Molecular Pharmacology, Chongqing University of Technology, Chongqing, 400054, China
Chongqing Key Laboratory of Medicinal Chemistry and Molecular Pharmacology, Chongqing University of Technology, Chongqing 400054, China
raw_author_name: Huayang Bai
raw_affiliation_strings: Chongqing Key Laboratory of Medicinal Chemistry and Molecular Pharmacology, Chongqing University of Technology, Chongqing, 400054, China
Chongqing Key Laboratory of Medicinal Chemistry and Molecular Pharmacology, Chongqing University of Technology, Chongqing 400054, China
raw_author_name: Yaqin Tang
raw_affiliation_strings: Chongqing Key Laboratory of Medicinal Chemistry and Molecular Pharmacology, Chongqing University of Technology, Chongqing, 400054, China
Chongqing Key Laboratory of Medicinal Chemistry and Molecular Pharmacology, Chongqing University of Technology, Chongqing 400054, China
raw_author_name: Daimeng Feng
raw_affiliation_strings: Chongqing Key Laboratory of Medicinal Chemistry and Molecular Pharmacology, Chongqing University of Technology, Chongqing, 400054, China
Chongqing Key Laboratory of Medicinal Chemistry and Molecular Pharmacology, Chongqing University of Technology, Chongqing 400054, China
raw_author_name: Shuyu Zhang
raw_affiliation_strings: Chongqing Key Laboratory of Medicinal Chemistry and Molecular Pharmacology, Chongqing University of Technology, Chongqing, 400054, China
Chongqing Key Laboratory of Medicinal Chemistry and Molecular Pharmacology, Chongqing University of Technology, Chongqing 400054, China
raw_author_name: Robert J. Lee
raw_affiliation_strings: Chongqing Key Laboratory of Medicinal Chemistry and Molecular Pharmacology, Chongqing University of Technology, Chongqing, 400054, China. Electronic address: robertlee@cqut.edu.cn
Chongqing Key Laboratory of Medicinal Chemistry and Molecular Pharmacology, Chongqing University of Technology, Chongqing 400054, China. Electronic address: robertlee@cqut.edu.cn
raw_author_name: Jing Xie
raw_affiliation_strings: Chongqing Key Laboratory of Medicinal Chemistry and Molecular Pharmacology, Chongqing University of Technology, Chongqing, 400054, China. Electronic address: 33@cqut.edu.cn
Chongqing Key Laboratory of Medicinal Chemistry and Molecular Pharmacology, Chongqing University of Technology, Chongqing 400054, China. Electronic address: 33@cqut.edu.cn
raw_author_name: Yansun Sun
raw_affiliation_strings: Department of Geriatrics, Peking University Shenzhen Hospital, Shenzhen, China. Electronic address: sunyansun@pkuszh.com
Trichophyton mentagrophytes Complex in Onychomycosis: A Retrospective Study of Internal Transcribed Spacer Genotypes and Squalene Epoxidase Gene Mutations
Year: 2025
Type: article
Language: en
Topic: Nail Diseases and Treatments
Authors and affiliations:
raw_author_name: Aditya K. Gupta
raw_affiliation_strings: Division of Dermatology, Department of Medicine, Temerty Faculty of Medicine, University of Toronto, Toronto, ON, Canada. aditya.gupta@utoronto.ca
Mediprobe Research Inc., London, ON, Canada. aditya.gupta@utoronto.ca
Division of Dermatology, Department of Medicine, Temerty Faculty of Medicine, University of Toronto, Toronto, ON, Canada
raw_author_name: Tong Wang
raw_affiliation_strings: Mediprobe Research Inc., London, ON, Canada
raw_author_name: Sara A. Lincoln
raw_affiliation_strings: Bako Diagnostics, Alpharetta, GA, USA
raw_author_name: Wayne L. Bakotic
raw_affiliation_strings: Bako Diagnostics, Alpharetta, GA, USA
Case-based analysis to assess the validity of the Hat Brim Line Rule in cranial trauma
Year: 2025
Type: article
Language: en
Topic: Child Abuse and Related Trauma
Authors and affiliations:
raw_author_name: Federica POLI
raw_affiliation_strings: University of Parma, Medicine and Surgery Department, Forensic Pathology Section, Viale Gramsci 14, Parma 43126, Italy
raw_author_name: Kiti DOCI
raw_affiliation_strings: University of Parma, Medicine and Surgery Department, Forensic Pathology Section, Viale Gramsci 14, Parma 43126, Italy
raw_author_name: Marcello SELIGARDI
raw_affiliation_strings: University of Parma, Medicine and Surgery Department, Forensic Pathology Section, Viale Gramsci 14, Parma 43126, Italy. Electronic address: marcello.seligardi@unipr.it
raw_author_name: Sara DAGOLI
raw_affiliation_strings: University of Parma, Medicine and Surgery Department, Forensic Pathology Section, Viale Gramsci 14, Parma 43126, Italy
raw_author_name: Alberto AMADASI
raw_affiliation_strings: Institute of Legal Medicine and Forensic Sciences, Charité-Universitätsmedizin Berlin, Turmstrasse 21, Berlin 10559, Germany
raw_author_name: Lars OESTERHELWEG
raw_affiliation_strings: Institute of Legal Medicine and Forensic Sciences, Charité-Universitätsmedizin Berlin, Turmstrasse 21, Berlin 10559, Germany
raw_author_name: Valentina BUGELLI
raw_affiliation_strings: University of Parma, Medicine and Surgery Department, Forensic Pathology Section, Viale Gramsci 14, Parma 43126, Italy
Vegetation layouts influence the spatial uniformity of wave attenuation: Laboratory insights
Year: 2025
Type: article
Language: en
Topic: Coastal wetland ecosystem dynamics
Authors and affiliations:
raw_author_name: Yufei Wang
raw_affiliation_strings: Department of Civil and Environmental Engineering, College of Design and Engineering, National University of Singapore, 1 Engineering Drive 2, 117576, Singapore
raw_author_name: Xiaotian Zeng
raw_affiliation_strings: Department of Civil and Environmental Engineering, College of Design and Engineering, National University of Singapore, 1 Engineering Drive 2, 117576, Singapore
raw_author_name: Yifan Lu
raw_affiliation_strings: Department of Civil and Environmental Engineering, College of Design and Engineering, National University of Singapore, 1 Engineering Drive 2, 117576, Singapore
raw_author_name: Jiarui Lei
raw_affiliation_strings: Department of Civil and Environmental Engineering, College of Design and Engineering, National University of Singapore, 1 Engineering Drive 2, 117576, Singapore
Visualisation of lenticulostriate arteries using photon counting detector CT angiography: A retrospective cohort study
Year: 2025
Type: article
Language: en
Topic: Digital Radiography and Breast Imaging
Authors and affiliations:
raw_author_name: Ilse Huijberts
raw_affiliation_strings: Department of Radiology and Nuclear Medicine, Maastricht University Medical Centre, Maastricht, the Netherlands; Department of Neurology, Maastricht University Medical Centre, Maastricht, the Netherlands; Mental Health and Neuroscience Research Institute (MHeNs), Maastricht University, Maastricht, the Netherlands; Cardiovascular Research Institute Maastricht (CARIM), Maastricht University, Maastricht, the Netherlands. Electronic address: ilse.huijberts@mumc.nl
raw_author_name: Bart A.J.M. Wagemans
raw_affiliation_strings: Department of Radiology and Nuclear Medicine, Maastricht University Medical Centre, Maastricht, the Netherlands
raw_author_name: Florentina M.E. Pinckaers
raw_affiliation_strings: Department of Radiology and Nuclear Medicine, Maastricht University Medical Centre, Maastricht, the Netherlands; Cardiovascular Research Institute Maastricht (CARIM), Maastricht University, Maastricht, the Netherlands; Care and Public Health Research Institute (CAPHRI), Maastricht University, Maastricht, the Netherlands
raw_author_name: M.M.Quirien Robbe
raw_affiliation_strings: Department of Radiology and Nuclear Medicine, Maastricht University Medical Centre, Maastricht, the Netherlands; Cardiovascular Research Institute Maastricht (CARIM), Maastricht University, Maastricht, the Netherlands
raw_author_name: Wim H. van Zwam
raw_affiliation_strings: Department of Radiology and Nuclear Medicine, Maastricht University Medical Centre, Maastricht, the Netherlands; Cardiovascular Research Institute Maastricht (CARIM), Maastricht University, Maastricht, the Netherlands
raw_author_name: Robert J. van Oostenbrugge
raw_affiliation_strings: Department of Neurology, Maastricht University Medical Centre, Maastricht, the Netherlands; Cardiovascular Research Institute Maastricht (CARIM), Maastricht University, Maastricht, the Netherlands
raw_author_name: Alida A. Postma
raw_affiliation_strings: Department of Radiology and Nuclear Medicine, Maastricht University Medical Centre, Maastricht, the Netherlands; Mental Health and Neuroscience Research Institute (MHeNs), Maastricht University, Maastricht, the Netherlands
Integrated optimization approach for skill-aware and collaborative IC design portfolios decision to enhance R&amp;D project effectiveness and resilience
Year: 2025
Type: article
Language: en
Topic: Resource-Constrained Project Scheduling
Authors and affiliations:
raw_author_name: Sheng Jing
raw_affiliation_strings: School of Economics and Management, Tongji University, Shanghai 200092, China
raw_author_name: Wenhan Fu
raw_affiliation_strings: Department of Industrial and Systems Engineering, Business School, University of Shanghai for Science and Technology, Shanghai 200093, China
School of Intelligent Emergency Management, University of Shanghai for Science and Technology, Shanghai 200093, China
Optimization of wastewater treatment plant layout, siting, and environmental protection strategies based on odorous gas dispersion
Year: 2025
Type: article
Language: en
Topic: Odor and Emission Control Technologies
Authors and affiliations:
raw_author_name: Zongze Xu
raw_affiliation_strings: National Engineering Laboratory for Advanced Municipal Wastewater Treatment and Reuse Technology, Beijing University of Technology, Beijing 100124, China
raw_author_name: Ruixuan Li
raw_affiliation_strings: National Engineering Laboratory for Advanced Municipal Wastewater Treatment and Reuse Technology, Beijing University of Technology, Beijing 100124, China
raw_author_name: Fanrui Xing
raw_affiliation_strings: National Engineering Laboratory for Advanced Municipal Wastewater Treatment and Reuse Technology, Beijing University of Technology, Beijing 100124, China
raw_author_name: Lei Shi
raw_affiliation_strings: National Engineering Laboratory for Advanced Municipal Wastewater Treatment and Reuse Technology, Beijing University of Technology, Beijing 100124, China
raw_author_name: Yuchen Zhang
raw_affiliation_strings: National Engineering Laboratory for Advanced Municipal Wastewater Treatment and Reuse Technology, Beijing University of Technology, Beijing 100124, China
raw_author_name: Zhe Feng
raw_affiliation_strings: National Engineering Laboratory for Advanced Municipal Wastewater Treatment and Reuse Technology, Beijing University of Technology, Beijing 100124, China
raw_author_name: Wenjing Yu
raw_affiliation_strings: National Engineering Laboratory for Advanced Municipal Wastewater Treatment and Reuse Technology, Beijing University of Technology, Beijing 100124, China
raw_author_name: Zhanhong Hu
raw_affiliation_strings: National Engineering Laboratory for Advanced Municipal Wastewater Treatment and Reuse Technology, Beijing University of Technology, Beijing 100124, China
raw_author_name: Qing Yang
raw_affiliation_strings: National Engineering Laboratory for Advanced Municipal Wastewater Treatment and Reuse Technology, Beijing University of Technology, Beijing 100124, China. Electronic address: yangqing@bjut.edu.cn
Oil film mixed lubrication of heavy-load friction pairs: Theoretical modeling, solution methods, and applications
Year: 2025
Type: article
Language: en
Topic: Gear and Bearing Dynamics Analysis
Authors and affiliations:
raw_author_name: Kaiming Zheng
raw_affiliation_strings: State Key Laboratory of Fluid Power Components & Mechatronic Systems, Department of Mechanical Engineering, Zhejiang University, Hangzhou 310058, China
raw_author_name: Xiaolong Zhang
raw_affiliation_strings: State Key Laboratory of Fluid Power Components & Mechatronic Systems, Department of Mechanical Engineering, Zhejiang University, Hangzhou 310058, China
raw_author_name: Kou Du
raw_affiliation_strings: Inner Mongolia North Heavy Industries Group CORP, Ltd., Baotou 014033, China
raw_author_name: Shuai Li
raw_affiliation_strings: Inner Mongolia North Heavy Industries Group CORP, Ltd., Baotou 014033, China
raw_author_name: Junhui Zhang
raw_affiliation_strings: State Key Laboratory of Fluid Power Components & Mechatronic Systems, Department of Mechanical Engineering, Zhejiang University, Hangzhou 310058, China
raw_author_name: Wei Wu
raw_affiliation_strings: School of Mechanical Engineering, Beijing Institute of Technology, Beijing 100081, China
raw_author_name: Bing Xu
raw_affiliation_strings: State Key Laboratory of Fluid Power Components & Mechatronic Systems, Department of Mechanical Engineering, Zhejiang University, Hangzhou 310058, China
raw_author_name: Huayong Yang
raw_affiliation_strings: State Key Laboratory of Fluid Power Components & Mechatronic Systems, Department of Mechanical Engineering, Zhejiang University, Hangzhou 310058, China
raw_author_name: Chao Zhang
raw_affiliation_strings: State Key Laboratory of Fluid Power Components & Mechatronic Systems, Department of Mechanical Engineering, Zhejiang University, Hangzhou 310058, China
Dual-enhanced copper nanocluster sensing label via metal ion-induced aggregation for on-site seafood freshness monitoring
Year: 2025
Type: article
Language: en
Topic: Nanocluster Synthesis and Applications
Authors and affiliations:
raw_author_name: Yajun Jin
raw_affiliation_strings: School of Food Science and Engineering, South China University of Technology, Guangzhou 510641, China; Academy of Contemporary Food Engineering, South China University of Technology, Guangzhou Higher Education Mega Centre, Guangzhou 510006, China; Engineering and Technological Research Centre of Guangdong Province on Intelligent Sensing and Process Control of Cold Chain Foods, & Guangdong Province Engineering Laboratory for Intelligent Cold Chain Logistics Equipment for Agricultural Products, Guangzhou Higher Education Mega Centre, Guangzhou 510006, China
raw_author_name: Yuandong Lin
raw_affiliation_strings: School of Food Science and Engineering, South China University of Technology, Guangzhou 510641, China; Academy of Contemporary Food Engineering, South China University of Technology, Guangzhou Higher Education Mega Centre, Guangzhou 510006, China; Engineering and Technological Research Centre of Guangdong Province on Intelligent Sensing and Process Control of Cold Chain Foods, & Guangdong Province Engineering Laboratory for Intelligent Cold Chain Logistics Equipment for Agricultural Products, Guangzhou Higher Education Mega Centre, Guangzhou 510006, China
raw_author_name: Jun-Hu Cheng
raw_affiliation_strings: School of Food Science and Engineering, South China University of Technology, Guangzhou 510641, China; Academy of Contemporary Food Engineering, South China University of Technology, Guangzhou Higher Education Mega Centre, Guangzhou 510006, China; Engineering and Technological Research Centre of Guangdong Province on Intelligent Sensing and Process Control of Cold Chain Foods, & Guangdong Province Engineering Laboratory for Intelligent Cold Chain Logistics Equipment for Agricultural Products, Guangzhou Higher Education Mega Centre, Guangzhou 510006, China
raw_author_name: Da-Wen Sun
raw_affiliation_strings: School of Food Science and Engineering, South China University of Technology, Guangzhou 510641, China; Academy of Contemporary Food Engineering, South China University of Technology, Guangzhou Higher Education Mega Centre, Guangzhou 510006, China; Engineering and Technological Research Centre of Guangdong Province on Intelligent Sensing and Process Control of Cold Chain Foods, & Guangdong Province Engineering Laboratory for Intelligent Cold Chain Logistics Equipment for Agricultural Products, Guangzhou Higher Education Mega Centre, Guangzhou 510006, China; Food Refrigeration and Computerized Food Technology (FRCFT), Agriculture and Food Science Centre, University College Dublin, National University of Ireland, Belfield, Dublin 4, Ireland. Electronic address: dawen.sun@ucd.ie
Identification of a novel antimicrobial peptide Gp-AMP1 with broad-spectrum and exceptional stability from deep-sea mussel Gigantidas platifrons
Year: 2025
Type: article
Language: en
Topic: Antimicrobial Peptides and Activities
Authors and affiliations:
raw_author_name: Guanghui Han
raw_affiliation_strings: Center of Deep Sea Research, and Laboratory of Marine Ecology and Environmental Sciences, and Laboratory of Experimental Marine Biology, Institute of Oceanology, Chinese Academy of Sciences, Qingdao 266071, China
raw_author_name: Hao Chen
raw_affiliation_strings: Center of Deep Sea Research, and Laboratory of Marine Ecology and Environmental Sciences, and Laboratory of Experimental Marine Biology, Institute of Oceanology, Chinese Academy of Sciences, Qingdao 266071, China. Electronic address: chenhao@qdio.ac.cn
raw_author_name: Lianhong Zhuo
raw_affiliation_strings: Center of Deep Sea Research, and Laboratory of Marine Ecology and Environmental Sciences, and Laboratory of Experimental Marine Biology, Institute of Oceanology, Chinese Academy of Sciences, Qingdao 266071, China; School of Future Technology, Fujian Agriculture and Forestry University, Fuzhou 350002, China
raw_author_name: Haoyu Yu
raw_affiliation_strings: Center of Deep Sea Research, and Laboratory of Marine Ecology and Environmental Sciences, and Laboratory of Experimental Marine Biology, Institute of Oceanology, Chinese Academy of Sciences, Qingdao 266071, China
raw_author_name: Ning Wu
raw_affiliation_strings: Center of Deep Sea Research, and Laboratory of Marine Ecology and Environmental Sciences, and Laboratory of Experimental Marine Biology, Institute of Oceanology, Chinese Academy of Sciences, Qingdao 266071, China
raw_author_name: Minxiao Wang
raw_affiliation_strings: Center of Deep Sea Research, and Laboratory of Marine Ecology and Environmental Sciences, and Laboratory of Experimental Marine Biology, Institute of Oceanology, Chinese Academy of Sciences, Qingdao 266071, China; Co-Innovation Center of Jiangsu Marine Bio-industry Technology, Jiangsu Ocean University, Lianyungang 222005, China
raw_author_name: Jiangning Song
raw_affiliation_strings: Biomedicine Discovery Institute and Department of Biochemistry and Molecular Biology, Monash University, Wellington Rd, Clayton, Melbourne, VIC 3800, Australia
raw_author_name: Chaolun Li
raw_affiliation_strings: Center of Deep Sea Research, and Laboratory of Marine Ecology and Environmental Sciences, and Laboratory of Experimental Marine Biology, Institute of Oceanology, Chinese Academy of Sciences, Qingdao 266071, China; South China Sea Institute of Oceanology, Chinese Academy of Sciences, Guangzhou 510301, China; Co-Innovation Center of Jiangsu Marine Bio-industry Technology, Jiangsu Ocean University, Lianyungang 222005, China. Electronic address: lcl@qdio.ac.cn
Self-driven Janus nanomotors empowering gastric mucus and biofilm penetration to potentiate antibiotic eradication of Helicobacter pylori
Year: 2025
Type: article
Language: en
Topic: Micro and Nano Robotics
Authors and affiliations:
raw_author_name: Zhanlin Zhang
raw_affiliation_strings: Institute of Biomedical Engineering, College of Medicine, Key Laboratory of Advanced Technologies of Materials, Ministry of Education, Southwest Jiaotong University, Chengdu 610031, PR China; Irradiation Preservation and Effect Key Laboratory of Sichuan Province, School of Bioscience and Technology, Chengdu Medical College, Chengdu 610500, PR China
raw_author_name: Dandan Zhang
raw_affiliation_strings: School of Life Science and Engineering, Southwest Jiaotong University, Chengdu 610031, PR China
raw_author_name: Guiyuan Zhang
raw_affiliation_strings: Institute of Biomedical Engineering, College of Medicine, Key Laboratory of Advanced Technologies of Materials, Ministry of Education, Southwest Jiaotong University, Chengdu 610031, PR China
raw_author_name: Junwu Wei
raw_affiliation_strings: Institute of Biomedical Engineering, College of Medicine, Key Laboratory of Advanced Technologies of Materials, Ministry of Education, Southwest Jiaotong University, Chengdu 610031, PR China
raw_author_name: Jie Meng
raw_affiliation_strings: Institute of Biomedical Engineering, College of Medicine, Key Laboratory of Advanced Technologies of Materials, Ministry of Education, Southwest Jiaotong University, Chengdu 610031, PR China
raw_author_name: Xiaohong Li
raw_affiliation_strings: Institute of Biomedical Engineering, College of Medicine, Key Laboratory of Advanced Technologies of Materials, Ministry of Education, Southwest Jiaotong University, Chengdu 610031, PR China; School of Life Science and Engineering, Southwest Jiaotong University, Chengdu 610031, PR China. Electronic address: xhli@swjtu.edu.cn