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Communications in Theoretical Physics 2008年第6期49卷 1561-1566页

作者： GUO Yong-Feng XU Wei li dong-Xi XIE Wen-Xian Department of Applied Mathematics Northwestern Polytechnical University Xi＇an 710072 China

A stochastic dissipative dynamical system driven by non-Gaussian noise is investigated. A general approximate Fokker-Planck equation of the system is derived through a path-integral approach. Based on the definition of Shannon＇s information entropy, the exact time dependence of entropy flux and entropy production of the system is calculated both in the absence and in the presence of non-equilibrium constraint. The present calculation can be used to interpret the interplay of the dissipative constant and non-Gaussian noise on the entropy flux and entropy production.

关键词： information entropy entropy flux and entropy production non-Gaussian noise Fokker-Planck equation

Effect and mechanism of siderite on reverse flotation of hematite

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International Journal of Minerals,Metallurgy and Materials 2016年第4期23卷 373-379页

作者： Wan-zhong Yin dong li Xi-mei Luo Jin Yao Qian-yu Sun College of Resources and Civil Engineering Northeastern University College of Zijin Mining Fuzhou University Faculty of Land Resource Engineering Kunming University of Science and Technology

The effects of siderite on reverse flotation of hematite were investigated using micro flotation, adsorption tests, and Fourier transform infrared spectroscopy. The flotation results show that interactions between siderite and quartz are the main reasons that siderite significantly influences the floatability. The interactions are attributed to dissolved siderite species and fine siderite particles. The interaction due to the dissolved species is, however, dominant. Derjaguin-Landau-Verwey-Overbeek（DLVO） theoretical calculations reveal that adhesion on quartz increases when the siderite particle size decreases and that fine particles partly influence quartz floatability. Chemical solution calculations indicate that the dissolved species of siderite might convert the surface of active quartz to CaCO_3 precipitates that can be depressed by starch. The theoretical calculations are in good agreement with the results of adsorption tests and FTIR spectroscopy and explain the reasons why siderite significantly influences reverse flotation of hematite.

关键词： hematite siderite reverse flotation solution chemistry

THERMAL AND MECHANICAL PROPERTIES OF POLYLACTIDE TOUGHENED WITH A BUTYL ACRYLATE-ETHYL ACRYLATE-GLYCIDYL METHACRYLATE COPOLYMER

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Chinese Journal of Polymer Science 2013年第11期31卷 1519-1527页

作者： Yan-ping Hao Huan-huan Ge li-jing Han 张会良 li-song dong Shu-lin Sun Key Laboratory of Polymer Ecomaterials Chinese Academy of SciencesChangchun Institute of Applied Chemistry Changchun University of Technology

In this work, a specific polylactide （PLA） 4032D was melt-mixed with a new toughener： butyl acrylate （BA）, ethyl acrylate （EA） and glycidyl methacrylate （GMA） copolymer （BA-EA-GMA）. DMA tests showed that PLA/BA-EA-GMA blends were partially miscible. The degree of crystallinity of PLA increased while the cold crystallization temperature shifted to higher temperatures with increasing BA-EA-GMA content. The SEM micrographs showed that PLA/BA-EA-GMA blends had a good dispersion and this phenomenon was in good agreement with their higher impact strength. The result showed that the adding of BA-EA-GMA has enhanced the flexibility of PLA/BA-EA-GMA blends as compared with pure PLA. The impact strength was changed from 3.4 kJ/m2 for pure PLA to 29.6 kJ/m2 for 80/20 PLA/BA-EA-GMA blend.

关键词： Polylactide Thermal properties Mechanical properties.

Two new flavanonol glycosides from Gordonia chrysandra

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Chinese Chemical Letters 2008年第1期19卷 61-64页

作者： Kun Wang Jing Zhi Yang li Zuo dong Ming Zhang Institute of Materia Medica Chinese Academy of Medical Sciences and Key Laboratory of BioactiveSubstances and Resources Utilization of Chinese Herbal Medicine （Peking Union Medical College） Ministry of Education 1 Xiannongtan Street Beijing 100050 China

Two new flavanonol glycosides named chrysandrosides A and B were isolated from the roots of Gordonia chrysandra Cowan. Their structures were determined by 1D and 2D NMR, FAB-MS techniques and chemical methods. Chrysandrosides A and B showed pronounced hepatoprotective activities against o-galactosamine （o-GalN）-induced toxicity in rat hepatic epithelial stemlike cells （WB-F344）. 2007 dong Ming Zhang. Published by Elsevier B.V. on behalf of Chinese Chemical Society. All rights reserved.

关键词： Gordonia chrysandra Cowan Flavanonol Chrysandrosides A and B

Comparison of Thermo-Structural Responses for Integrated Thermal Protection Panels with Different Corrugated Core Configurations

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Journal of Harbin Institute of Technology(New Series) 2013年第6期20卷 21-28页

作者： Shu-Yuan Zhao Jian-Jun li Xiao-dong He Science and Technology on Advanced Composites in Special Environments Laboratory Harbin Institute of Technology

To explore new light-weight integrated thermal protection system panel configuration and gain good insight into the responses mechanism,heat transfer and structural field analysis for one single-layer and four double-layer corrugated core panels were performed. The obtained the temperature,buckling,stress and deflection responses were compared,and the deflection and stress distributions as well as thermal buckling mode at the time were discussed for the considered configurations when the temperature difference between the top and bottom face sheet was maximum. The results demonstrated that the non-orthogonal and hat-stiffened double-layer structures provide superior performance to resist thermal buckling deformation in comparison with other configurations. The useful information is provided for the forthcoming optimization in which thermal buckling is considered as critical design driver.

关键词： Integrated Thermal Protection System corrugated heat transfer thermal bucklingCLC number:V214.4 Document code:AArticle ID:1005-9113(2013)06-0021-08

DFT study of dihydrogen interactions with lithium containing organic complexes C4H4-mlim and C5H5-mlim （m = 1, 2）

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Frontiers of physics 2011年第2期6卷 231-235页

作者： Hong ZHANG Xiao-dong li Yong-jian TANG College of Physical Science and Technology Sichuan University Chengdu 610065 China Research Center of Laser Fusion China Academy of Engineering Physics Mianyang 621900 China

The interactions of dihydrogen with lithium containing organic complexes C4H4-mlim and C5H5-mli m （m = 1, 2） were studied by means of density functional theory （DFT） calculation. For all the complexes considered, each bonded lithium atom can adsorb up to five H2 molecules with the mean binding energy of 0.59 eV/H2 molecule. The interactions can be attributed to the charge transfer from the H2 bonding orbitals to the li 2s orbitals. The kinetic stability of these hydrogen-covered organolithium molecules is discussed in terms of the energy gap between the highest occupied molecular orbital （HOMO） and lowest unoccupied molecular orbital （LUMO）. The results indicate that these organiclithium structures can perhaps be used as building units for potential hydrogen storage materials.

关键词： adsorption density functional calculations organolithium molecule hydrogen storage

Transarterial chemoembolization combined with radiofrequency ablation in the treatment of large hepatocellular carcinoma with stage C

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World Journal of Clinical Cases 2022年第33期10卷 12156-12163页

作者： Sha-Sha Sun Wen-dong li Jing-Long Chen Department of Oncology Capital Medical University Affiliated Beijing Ditan HospitalBeijing 100015China

BACKGROUND The combination therapy of transarterial chemoembolization and radiofrequency ablation(TACE-RFA)shows promising efficacy in large hepatocellular carcinoma(HCC).Data on the clinical efficacy and safety of TACE-RFA for large HCC with barcelona clinic liver cancer(BCLC)stage C are lacking in *** To determine the safety and efficacy of TACE-RFA for large,advanced *** Patients of HCC with BCLC stage C who were treated with TACE-RFA or TACE alone at our institute from August 2008 to January 2017 were retrospectively *** complications were *** associations between overall survival(OS)and treatment method were *** Data were collected from 102 HCC *** them,64 underwent TACERFA and 38 underwent *** combination of TACE and RFA was *** complications were *** median OS in the TACE-RFA group was significantly longer than that in the TACE group(8.0 mo vs 4.0 mo,P=0.000).The 6-,12-and 24-mo survival rates of the combination group were 68.8%,34.4%,and 10.9%,respectively,while those of the TACE group were 36.8%,7.9%,and 0%(P<0.05).CONCLUSION TACE-RFA has an advantage over TACE alone in improving OS in large HCC patients with BCLC stage C.

关键词： Large advanced hepatocellular carcinoma Transarterial chemoembolization Radiofrequency ablation Overall survival Combination therapy

Structure of V_2O_5-P_2O_5-Sb_2O_3-Bi_2O_3 glass

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International Journal of Minerals,Metallurgy and Materials 2012年第7期19卷 628-635页

作者： Hong-yan li Zhi-liang Zhu Feng-li Yang Wei-dong Zhuang Yun-sheng Hu Xiao-fan Wen National Engineering Research Center for Rare Earth Materials General Research Institute for Nonferrous Metals and Grirem Advanced Materials Co. Ltd. Beijing 100088 China BOE Technology group Co. Ltd. Beijing 100015 China Beijing Asahi Glass Electronics Co. Ltd. Beijing 100015 China

The structure ofV2O5-P2O5-Sb2O3-Bi2O3glass and its state of crystallization were studied by means of infrared spectroscopy and X-ray diffraction analysis. The results indicate that, in this glass, V and P exist mainly in the form of a single-stranded linear （VO3）n and an isolated （PO4） tetrahedral with no double bond. Partial V and P are connected through O, forming an amorphous structure of layered vana- dium phosphate. Trivalent Sb3＋ and Bi3＋ open the V=O bond and appear in interlayers, so a weak three-dimensional structure is connected successfully. Along with the substitution of Sb203 for partial V205 or that of P205 for partial V205, the network structure of the glass is rein- forced, and the crystallization is reduced.

关键词： glass structure sealing vanadium pentoxide phosphorus pentoxide antimonous oxide bismuth trioxide

A Novel Phenylpropanoid-substituted Catechin Glycoside and a New Dihydrochalcone from Sarcandra glabra

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Chinese Chemical Letters 2006年第2期17卷 207-210页

作者： Yuan li dong Ming ZHANG Shi Shah YU Jian Bei li Yong Ming LUO Key Laboratory of Bioactive Substances and Resources Utilization of Chinese Herbal Medicine Ministry of Education Institute of Materia Medica Chinese Academy of Medical Sciences and Peking Union Medical College Beijing 100050 Faculty of Pharmacy Jiangxi University of Traditional Chinese Medicine Nanchang 330006

A novel phenylpropanoid-substituted catechin glycoside glabraoside A 1 and a new dihydrochalcone 3＇-（7＂-allylphenyl）-2＇,4＇,4＂-trihydroxy-6＇-methoxydihydrochalcone 2 were isolated from the herbs of Sarcandra gl... 详细信息

关键词： Sarcandra glabra glabraoside A phenylpropanoid-substituted flavan-3-ols dihydrochalcone.

Interaction between insulin-like growth factor binding protein-related protein 1 and transforming growth factor beta 1 in primary hepatic stellate cells

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Hepatobiliary & Pancreatic Diseases International 2017年第4期16卷 395-404页

作者： Xiu-qing li Qian-Qian Zhang Hai-Yan Zhang Xiao-Hong Guo Hui-Qin Fan li-Xin liu Department of Gastroenterology and Hepatology The First Clinical Hospital of Shanxi Medical University Experimental Center of Science and Research The First Clinical Hospital of Shanxi Medical University Key Laboratory of Cell Physiology Provincial Department of the Ministry of EducationShanxi Medical UniversityTaiyuan 030001China

BACKGROUND: We previously showed that insulin-like growth factor binding protein-related protein 1 (IGFBPrP1) is a novel mediator in liver fibrosis. Transforming growth factor beta 1 (TGF beta 1) is known as the strongest effector of liver fibrosis. Therefore, we aimed to investigate the detailed interaction between IGFBPrP1 and TGF beta 1 in primary hepatic stellate cells (HSCs). METHODS: We overexpressed TGF beta 1 or IGFBPrP1 and inhibited TGF beta 1 expression in primary HSCs for 6, 12, 24, 48, 72, and 96 hours to investigate their interaction and observe the accompanying expressions of a-smooth muscle actin (alpha-SMA), collagen I, fibronectin, and phosphorylated-mothers against decapentaplegic homolog 2/3 (p-Smad2/3). RESULTS: We found that the adenovirus vector encoding the TGF beta 1 gene (AdTGF beta 1) induced IGFBPrP1 expression while that of alpha-SMA, collagen I, fibronectin, and TGF beta 1 increased gradually. Concomitantly, AdIGFBPrP1 upregulated TGF beta 1, alpha-SMA, collagen I, fibronectin, and p-Smad2/3 in a time-dependent manner while IGFBPrP1 expression was decreased at 96 hours. Inhibition of TGF beta 1 expression reduced the IGFBPrP1-stimulated expression of alpha-SMA, collagen I, fibronectin, and p-Smad2/3. CONCLUSIONS: These findings for the first time suggest the existence of a possible mutually regulation between IGFBPrP1 and TGF beta 1, which likely accelerates liver fibrosis progression. Furthermore, IGFBPrP1 likely participates in liver fibrosis in a TGF beta 1-depedent manner, and may act as an upstream regulatory factor of TGF beta 1 in the Smad pathway.

关键词： insulin-like growth factor binding protein related protein 1 transforming growth factor in primary hepatic stellate cells alpha-smooth muscle actin extracellular matrix Smad pathway