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Properties improvement of SPEEK based proton exchange membranes by doping of ionic liquids and Y2O3

Progress in Natural Science:Materials International 2012年第1期22卷 26-30页

作者： Jianbin Chen a,qiang guo a,Dan li a,Juying Tong a,b,Xia li a a School of Materials Science and Engineering,Shanghai University,Shanghai 201800,China b School of Wenling,Zhejiang TV University,Wenling 317500,China School of Materials Science and Engineering Shanghai University Shanghai 201800 China School of Wenling Zhejiang TV University Wenling 317500 China

The membranes of sulfonated poly(etheretherketone) with 65% sulfonation degree were prepared by doping of Y2O3 and ionic liquids,such as 1-ethyl-3-methylimidazole tetrafluoroborate(EB) or 1-butyl-3-methylimidazole methanesulfonate(BS),*** the properties,including conductivities,water uptake,thermal stability and mechanical properties,of pure SPEEK based proton exchange membrane and SPEEK based proton exchange membranes by doping of ionic liquids and Y2O3 have been studied in the present *** experimental results showed that the conductivity of membranes increased with the temperature increased from 30 to 90 1C,except for that of pure SPEEK membrane increased with increasing temperature from 30 to 70 1C and decreased with increasing temperature from 70 to 90 *** conductivities of SPEEK/EB/Y2O3 and SPEEK/BS/Y2O3 composite membranes at 90 1C were 9.04 10 2 S cm 1 and 1.18 10 1 S cm 1 at 100% relative humidity(RH) and 8.04 10 2 S cm 1 and 1.02 10 1 S cm 1 at 50%RH,*** has been also found that the water uptake and thermal stability of the membranes slightly improved by doping of ionic liquids and *** tensile stress at break at room temperature was 2.61 MPa and 2.33 MPa,for SPEEK/EB/Y2O3 and SPEEK/BS/Y2O3,*** it may be considered that the modification with ionic liquids and Y2O3 is a good potential method for improving the properties of SPEEK proton exchange membrane.

关键词： SPEEK Proton exchange membrane Ionic liquids Conductivity

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Copper metabolism after living related liver transplantation for Wilson's disease

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World Journal of Gastroenterology 2003年第12期9卷 2836-2838页

作者： Xue-Hao Wang Feng Cheng Feng Zhang Xiang-Cheng li Jian-Ming Qian lian-Bao Kong Hao Zhang guo-qiang li liver Transplantation Center,First Affiliated Hospital of Nanjing Medical University,Nanjing 210029,Jiangsu Province,China liver Transplantation Center First Affiliated Hospital of Nanjing Medical University Nanjing 210029 Jiangsu Province China.

AlM: liver transplantation is indicated for Wilson's disease(WD) patients with the fulminant form and end-stage liverfailure. The aim of this study was to review our experiencewith living-related liver transplantation (LRLT) for ***: A retrospective review was made for WDundergoing LRLT at our hospital from January 2001 toFebuary ***: LRLT was carried out in 15 patients with WD,one of them had fulminant hepatic failure and the others had end-stage hepatic insufficiency. The mean age of the patients was 14.5±2.5 years (range 6 to 20 years). All the recipients had low serum ceruloplasmin levels with a mean value of 126.8±34t.8 mg/L before transplantation. The serum ceruloplasmin levels increased to an average of 238.6±34.4mg/L after LRLT at the latest evaluation, between 2 and 27months after transplantation. A marked reduction in urinary copper excretion was observed in all the recipients after transplantation. Among the eight recipients with preoperative Kayser-Fleischer (K-F) rings, this abnormality resolved completely after LRLT in five patients and partially in *** the recipients are alive and remain well, and none has developed signs of recurrent WD after a mean follow-up period of 15.4±9.3 months (range 2-27 months) except one who died of severe rejection. The donors were 14t mothers and 1 father. The serum ceruloplasmin levels were within normal limits in all the donors (mean: 220±22.4 mg/L). The mean donor age was 35.0±4.0 years (range, 30 to 45 years).Two donors had biliary leakage and required *** were harvested as follows: four right lobe grafts without hepatic middle vein and eleven left lobe grafts with hepatic middle vein. The grafts were blood group-compatible in all recibents. Two patients had hepatic artery thrombosis and underwent ***: LRLT is a curative procedure in Wilson's disease manifested as fulminant hepatic failure and/or endstage hepatic insufficiency. After liver transplantation,

关键词：铜代谢活体肝移植肝豆状核变性染色体隐性遗传病肝供体

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Comparison between kidney and continuous plasma perfusion for paraquat elimination

Comparison between kidney and continuous plasma perfusion fo...

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第七次全国中毒与危重症救治学术年会、第二届宝安急危重症高峰论坛、国家级继续项目“心肺复苏与急危重症学习班”

作者： guo-qiang li Yu-Ming li Lu-Qing Wei Tianjin Medical University Department of Intensive Care Medicine Affiliated Hospital of the Medical College of the Chinese People’s Armed Police Forces Department of Cardiology Affiliated Hospital of the Medical College of the Chinese People’s Armed Police Forces

Background:Thousands of paraquat（PQ）-poisoned patients continue to die,particularly in developing countries,plasma perfusion has recently been incorporated as a method of clinical *** purpose of this study was to estimate the paraquat clearance of plasma perfusion,and observe the effect of plasma perfusion on paraquat concentration in the blood of patients with acute paraquat ***:21 PQ-poisoned patients admitted to our poisoning center within 24 hours after the ingestion were prospectively *** plasma perfusion（flow rate 180 ml/min）was performed,with plasma/blood separation at 40 ml/min and routine cartridges change every 3 *** PQ（UPQ）,urine flow rate（UFR）,and plasma PQ（PPQ）concentration level at inlet/outlet of the cartridge were obtained right before,and 1.5 hours after the start of each perfusion session for calculation of renal and plasma PQ ***:In all 8 rounds（108 sessions）of plasma perfusion on the 21 patients,PQ clearance rate（ml/min）by plasma perfusion was found always higher than the renal value:[1st（21 cases）11.14±6.13 vs.6.53±1.46;2nd（21 cases）18.36±11.32 vs.6.23±1.51;3rd（21 cases）16.13±10.05vs.4.01±0.93;4th（17 cases）12.86（6.72,17.47）vs.2.42（0.65,4.20）;5th（11 cases）14.12（10.48,35.20）vs.1.77（0.63,2.91）;6th（7 cases）16.47（11.82;20.69）vs.1.70（0.23,3.18）;7th（5 cases）13.33（9.71,18.75）vs.1.10（0.14,2.99）;8th（5 cases）11.27（9.21,16.02）vs.1.10（0.09,2.79）,P<0.05 or P<0.01].The survivors（10 cases）showed a higher PPQ reduction rate(mg×L×h)than the non-survivors（11 cases,0.57±0.03 vs.0.47±0.06,P<0.05）.Conclusion:Our data show that plasma perfusion therapies help in the clearance of PQ and may prove a promising therapeutic tool in patients with acute PQ intoxication.

关键词： paraquat poisoning plasma paraquat levels plasma perfusion elimination of paraquat

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A Wind Tunnel Experimental Study on the Wake Characteristics of a Horizontal Axis Wind Turbine

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Journal of Thermal Science 2025年第1期34卷 145-158页

作者： guo Xingduo li Yinran li Rennian MA Yulong WEI Kui College of Energy and Power Engineering Lanzhou University of Technology Key Laboratory of Fluid Machinery and Systems Gansu Provincial Technology Centre for Wind Turbines

The characteristics of wind turbine wakes are influenced by multiple factors,including the atmospheric boundary layer(ABL) wind and wind turbine operating conditions(e.g.,tip speed ratio and yaw angle).In this study,two types of ABL winds with different velocity gradients and turbulence intensities are generated in a wind tunnel through configurations of spires,baffles,and various numbers of roughness elements.A wind turbine with a rotor diameter of 0.8 m and a hub height of 0.6 m is tested under varying tip speed ratios,yaw angles,and ABL wind *** results indicate that the streamwise velocity deficit in the near-wake region becomes more pronounced with an increase in the tip speed ratio,while the far-wake velocity deficit remains largely unaffected by changes in the tip speed *** the yaw angle increases,the wake deflection becomes more prominent and the wake narrows;the offset of the wake center at various downstream positions grows linearly,reaching a maximum value of approximately half the rotor ***,the turbulence level and influence range in the wake region are reduced when the turbine is *** ABL wind conditions,high turbulence intensity in the incoming flow accelerates wake recovery,and the Reynolds stress at different lateral positions tends to become consistent with increasing longitudinal ***,turbulence has a significant impact on the meandering characteristics of the wind turbine wake,with greater fluctuations in the wake center observed under higher turbulence ***,this study provides insights that could inform the optimal operation of wind farms.

关键词： horizontal axis wind turbine turbulence wind tunnel experiment wind turbine wake

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Viloft/中空涤纶混纺纱的开发与测试

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毛纺科技 2011年第2期39卷 24-26页

作者：郭利强北京服装学院服装艺术与工程学院北京100029

介绍了Viloft(维劳夫特)新型环保纤维的主要性能,对中空涤纶纤维的主要性能特点做了简单叙述,对2种纤维的性能指标进行了对比。根据Viloft纤维和中空涤纶纤维的性能特点确定了合理的混纺比,开发出了Viloft/中空涤纶混纺纱。为了充分体... 详细信息

介绍了Viloft(维劳夫特)新型环保纤维的主要性能,对中空涤纶纤维的主要性能特点做了简单叙述,对2种纤维的性能指标进行了对比。根据Viloft纤维和中空涤纶纤维的性能特点确定了合理的混纺比,开发出了Viloft/中空涤纶混纺纱。为了充分体现该种混纺纱的性能优势,对混纺纱的回潮率、重量不匀率、强力、毛羽以及耐磨次数等主要性能指标进行了测试分析,最后通过与涤纶纯纺纱进行比较,总结出了Viloft/中空涤纶混纺纱线的优势。

关键词：纺织新材料 Viloft/中空涤纶混纺开发与测试

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Clinical Management of organophosphate poisoning in pregnancy

Clinical Management of organophosphate poisoning in pregnanc...

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第七次全国中毒与危重症救治学术年会、第二届宝安急危重症高峰论坛、国家级继续项目“心肺复苏与急危重症学习班”

作者： liang Sun guo-qiang li Lu-Qing Wei Department of Respiratory and Critical Care Medicine Pingjin Hospital Affiliated Hospital of Armed Police Logistics College 220

BACKGROUND-Acute organophosphorus pesticide poisoning during pregnancy may lead to spontaneous ***,there is no definite strategy focused on maintaining ***-Retrospective analysis of 2 cases of organophosphorus poisoning during *** patients received penehyclidine hydrochloride injection until the tracheobronchial tree is cleared of the secretions and most secretions were *** addition,Magnesium sulfate was used in one woman for the correction of hyperdynamic uterine ***-Two women all survived,one foetus died of spontaneous abortion and one foetus died of incoordinate uterine *** two women had no significant complications during postpartum ***-Penehyclidine hydrochloride and magnesium sulfate may be used to treat organophosphorus during ***,futher study and new experimental need to be designed.

关键词： Organophosphates poisoning dichlorvos pregnancy Abortion

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高校国际学术人才吸引策略研究

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科学管理研究 2019年第6期37卷 124-130页

作者：郭立强北京航空航天大学高等教育研究院北京100191

国际学术人才流动是高等教育研究的热点话题。留学生和学术工作者是最为重要的两个流动群体。通过对全球科学家调查数据的考察发现:就留学生而言,最重要的影响因素为职业前景,之后依次为院校声誉、个人旨趣、奖助政策、社会网络和跨校... 详细信息

国际学术人才流动是高等教育研究的热点话题。留学生和学术工作者是最为重要的两个流动群体。通过对全球科学家调查数据的考察发现:就留学生而言,最重要的影响因素为职业前景,之后依次为院校声誉、个人旨趣、奖助政策、社会网络和跨校交流机会,其中,男性更加看重院校声誉,女性更加看重跨校交流,相较于本科和硕士,博士更加看重职业发展、院校声誉和奖助政策;就学术工作者而言,最重要的影响因素是高校实力与声誉,之后依次为个人发展与前景和个人当期回报,其中,女性更加看重个人发展与前景,相较于博士后而言,非博士后学术工作者更加看重个人当期回报。因此,为了更好地引进国际学术人才应继续推动一流大学建设、完善国际学术人才奖助政策、借助互联网手段实现互联互通社交平台搭建,并升级中国学术劳动力市场。

关键词：学术人才人才流动高等教育国际化

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基于多标签共享子空间学习和内核脊回归的空谱分类算法

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光子学报 2020年第5期49卷 115-127页

作者：郭利强孟庆超洛阳师范学院教育科学学院河南洛阳471000 洛阳师范学院信息技术学院河南洛阳471000

针对高光谱图像维度高、地物间非线性可分造成的分类精度低等问题,提出一种基于多标签共享子空间和内核脊回归的空谱分类算法.该算法利用内核脊回归将地物相近像素在线性空间的不可分特征映射到高维空间中,实现分类特性在高维空间下的... 详细信息

针对高光谱图像维度高、地物间非线性可分造成的分类精度低等问题,提出一种基于多标签共享子空间和内核脊回归的空谱分类算法.该算法利用内核脊回归将地物相近像素在线性空间的不可分特征映射到高维空间中,实现分类特性在高维空间下的有效分离,以提高地物相近特性的区分精度;同时将高维样本数据映射到低维共享子空间中,在低维环境下以多类标为指导,引入低秩矩阵建立类别标签与共享空间的预测关系,挖掘多标签间的共同特性,提高融合利用多类别间的共同属性提高高光谱图像的分类精度;最后利用奇异值分解迭代法求解目标函数,一定程度上加速参数求解.在Indian Pines和Pavia University两组高光谱数据集上进行仿真实验,实验结果表明,与其他同类算法相比,在低样本比例下,本文算法在总体分类精度、平均分类精度和Kappa系数等评价指标上至少提高4.76%、4.24%和5.19%,与非内核化的算法相比,本文算法在基本不增加运行时间的情况下总体分类精度、平均分类精度和Kappa系数至少提高2.92%、2.8%和3.48%.

关键词：高光谱图像分类内核脊回归多标签共享子空间学习奇异值分解

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Effects of Heavy Ion Irradiation on Cell Survival and Cell Cycle Delays in Synchronous SMMC-7721 Hepatoma Cells

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近代物理研究所和兰州重离子加速器实验室年报：英文版 2005年第1期 73-74页

作者： Wei Wei, li Wenjian, Xia Jinguang, Jin Xiaodong, guo Chuanling, li qiang and Su Xu

Ionizing radiation produces various kinds of damage, for example, DNA double- or single-strand break, and base damage. Cellular responses after ionizing radiation exposure can be considered to protect the cells from the radiation-induced damage. The purpose of this study is to investigate and compare cell survival and cell cycle progression in human hepatoma cells (SMMC-7721) synchronized at G0/C1,G1/S and G2/M phases, respectively.

关键词：细胞存活电离辐射肝癌细胞周期时滞同步重离子单链断裂辐射照射

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Eunicellin-Based Diterpenoids and Seroids from the South China Sea Gorgonian Muricella sibogae

Eunicellin-Based Diterpenoids and Seroids from the South Chi...

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2014年中国药学大会暨中国药师周

作者： Xing-Wang Zhang Xu-li Tang Ping-lin li guo-qiang li Key Laboratory of Marine Drugs Chinese Ministry of EducationSchool of Medicine and PharmacyOcean University of China College of Chemistry and Chemical Engineering Ocean University of China

A present continuous study of the gorgonian Muricella sibogae collected from the South China Sea showed a new understanding of its chemical ***-four compounds were obtained,including two new eunicellin-based diterpenoids sibogins C and D,a new 9,10-secosteroid sibogol D,and two new1,4-dien-3-one-steroids sibogols E and F,together with eight known eunicellin-based diterpenoids and twenty-one known *** structures were elucidated by extensive spectroscopic analyses（1D-and 2D-NMR,IR and MS）and by careful comparisons with data in *** the bioassay in vitro,three eunicellin-based diterpenoids showed moderate cytotoxicities against selected tumor cell lines,while two steroids displayed significant cytotoxicities against HL-60 cell lines with IC50values of 1.27mM and 5.26mM respectively;and one of them also showed potent cytotoxicity against HCT116 cell lines with an IC50 value of ***,an interesting structure-activity relationship among the three types of biogenetically related 9,10-seco-,1,4-dien-3-one-and 4-en-3-one-steroids was discovered for the first time.

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