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3817篇 您的检索式:作者名="L QIU"
    题名 作者 年代 出处 被引量
1Effect of low molecular weight heparin on pancreatic microcirculation in severe acute pancreatitis in a rodent model显示文摘在严重尖锐胰腺炎(树液)的 microcirculation 混乱的背景缓和能改进幸存率,并且低分子的重量肝磷脂( LMWH )是众所周知的有 microcirculation 混乱上的改善效果由这研究的抗凝剂 activity.The 目的引起了的有势力是在 rats.Methods SD 老鼠在树液在胰腺的 microcirculation 上调查 LMWH 的效果随机被划分成 3 groups:sham 操作组,树液组,并且 seru 的 LMWH 处理(副) group.TheQIU Fu Lǖ Xin-sheng HUANG Yu-kun 2007Chinese Medical Journal2007,,24:21
2Recent progress and future prospects of oil-absorbing materials显示文摘Oil and organic solvent contamination, derived from oil spills and organic solvent leakage, has been recognized as one of the major environmental issues imposing a serious threat to both human and ecosystem health. Among the various presented technologies applied for oil/water separation, oil absorption process has been explored widely and offers satisfactory results especially with surface modified oil-absorbing material and/or hybrid absorbents. In this review, we summarize the recent research activities involved in the designing strategies of oil-absorbing absorbents and their application in oil absorption. Then, an extensive list of various oil-absorbing materials from literature, including polymer materials, porous inorganic materials and biomass materials, has been compiled and the oil adsorption capacities toward various types of oils and organic solvents as available in the literature are presented along with highlighting and discussing the various factors involved in the designing of oil-absorbing absorbents tested so far for oil/water separation. Finally, some future trends and perspectives in oil-absorbing material are outlined.Tao Zhang Zhangdi Li Yuanfei Lü Yu Liu Dongya Yang Qiurong Li Fengxian Qiu 2019Chinese Journal of Chemical Engineering2019,27,6:14
3Test selection and optimization for PHM based on failure evolution mechanism model显示文摘The test selection and optimization(TSO) can improve the abilities of fault diagnosis, prognosis and health-state evaluation for prognostics and health management(PHM) systems. Traditionally, TSO mainly focuses on fault detection and isolation, but they cannot provide an effective guide for the design for testability(DFT) to improve the PHM performance level. To solve the problem, a model of TSO for PHM systems is proposed. Firstly,through integrating the characteristics of fault severity and propagation time, and analyzing the test timing and sensitivity, a testability model based on failure evolution mechanism model(FEMM) for PHM systems is built up. This model describes the fault evolutiontest dependency using the fault-symptom parameter matrix and symptom parameter-test matrix. Secondly, a novel method of inherent testability analysis for PHM systems is developed based on the above information. Having completed the analysis, a TSO model, whose objective is to maximize fault trackability and minimize the test cost, is proposed through inherent testability analysis results, and an adaptive simulated annealing genetic algorithm(ASAGA) is introduced to solve the TSO problem. Finally, a case of a centrifugal pump system is used to verify the feasibility and effectiveness of the proposed models and methods. The results show that the proposed technology is important for PHM systems to select and optimize the test set in order to improve their performance level.Jing Qiu Xiaodong Tan Guanjun Liu Kehong L 2013Journal of Systems Engineering and Electronics2013,24,5:7
4用矿化牛骨块onlay植骨水平重建前颌骨严重萎缩性牙槽嵴:一项为期6年的前瞻性研究显示文摘目的:评估应用矿化牛骨块重建前颌骨的牙槽嵴水平缺损的onlay(上置式)植骨的有效性和长期结果。材料与方法:14例需要修复无牙前颌骨的患者纳入本研究,他们接受onlay植骨。劈开从下颌支的外侧获取的皮质骨块,以获得约1mm厚的骨板。将皮质骨板和块状移植物压缩并固定到受区。6个月后,记录增加的宽度,植入种植体。Qiu L Yu H 赵泽亮 2018中国口腔颌面外科杂志2018,16,4:6
5Occurrence and molecular characterization of Potato spindle tuber viroid(PSTVd) isolates from potato plants in North China显示文摘China is the largest potato producing country worldwide,with this crop representing the fourth largest staple food crop in China.However,the steady presence of Potato spindle tuber viroid(PSTVd) over the past five decades has a significant economic impact on potato production.To determine why PSTVd control measures have been ineffective in China,more than 1 000 seed potatoes collected between 2009 and 2014 were subjected to PSTVd detection at the Supervision and Testing Center for Virus-free Seed Potatoes Quality,Ministry of Agriculture,China.A high PSTVd infection rate(6.5%) was detected among these commercial seed potatoes.Some breeding lines of potato collected from 2012 to 2015 were also tested for PSTVd infection,revealing a high rate of PSTVd contamination in these potato propagation materials.Furthermore,comparison of the full-length sequences of 71 different Chinese PSTVd isolates revealed a total of 74 predominant PSTVd variants,which represented 42 different sequence variants of PSTVd.Comparative sequence analysis revealed 30 novel PSTVd sequence variants specific to China.Comprehensive phylogenetic analysis uncovered a close relationship between the Chinese PSTVd sequence variants and those isolated from Russia.It is worth noting that three intermediate strains and six mild strains were identified among these variants.These results have important implications for explaining the ineffective control of PSTVd in China and thus could serve as a basic reference for designing more effective measures to eliminate PSTVd from China in the future.QIU Cai-ling ZHANG Zhi-xiang LI Shi-fang BAI Yan-ju LIU Shang-wu FAN Guo-quan GAO Yan-ling ZHANG Wei ZHANG Shu Lü Wen-he Lü Dian-qiu 2016Journal of Integrative Agriculture2016,15,2:5
6Clinical and angiographic characteristics of premenopausal women with coronary artery disease显示文摘当中年的 men.It 的疾病广泛地被接受,背景冠的动脉疾病( CAD )通常被考虑因为荷尔蒙 protection.Based ,为绝经前的女人的 CAD 的风险是低的,没有足够的 concern.Even nowthere ,更绝经前的女人受不了咽峡炎和心肌的梗塞,这仍然是有限的详细数据为了描述绝经前的 CAD patients.This 的 characteristicsmechanism 和预后,文章瞄准了到分析临床所有 P < 0.05 )我们在绝经前的 CAD 发现了单个容器的更多的经常的参与的 .Although (43.2%对 26.9%P=0 ),并且三倍的容器在绝经后( 56-60 岁) CAD 病人(33.8%对 20.4%P=0 )更严重的损害(90%)在留给主要(2.9%对1.1%, P=0.048 )并且近似左前面的下降动脉(男孩)(28.2%对 16.6%P=0 )在绝经前的 CAD ,组是有胸不快的绝经前的女人总是被发现把明显的 atherosclerosismore 使倾向了被定位的 found.DOU Ke-fei XU Bo YANG Yue-jin Lü Rong QIU Hong YANG Wei-xian MU Zhao-wei GAO Run-lin GAO Zhan CHEN Ji-lin QIAO Shu-bin LI Jian-jun QIN Xue-wen LIU Hai-bo WU Yong-jian CHEN Jue YAO Min YOU Shi-jie YUAN Jin-qing DAI Jun 2008Chinese Medical Journal2008,,23:5
7Flexible organic light-emitting diodes with poly-3,4-ethylene-dioxythiophene as transparent anode显示文摘The flexible oragnic light-emitting diodes (OLEDs) fabricated on poly -3,4-ethylenedioxythiophene/poly -styrenesulfonate(PEDOT/PSS) coated substrates were demonstrated. How the fabricating processes and the device structure will affect the device performance was studied and the atomic force microscopy was employed to analyze the mophorlogy of the conducting polymer anode. Under optimized conditions, flexible OLEDs with PEDOT anode showed the brightness up to 2760 cd/m2 and maximum external quantum efficiency of 1.4%. These data are comparable to those of conventional flexible OLEDs with ITO anode.Qiu, Y Duan, L Wang, LD 2002Chinese Science Bulletin2002,47,23:4
8Degradation of PCDD/Fs in MSWI fly ash using a microwave-assisted hydrothermal process显示文摘In this work,microwave treatment was introduced to a hydrothermal treatment process to degrade PCDD/Fs(Polychlorinated dibenzo-p-dioxins and dibenzofurans)in municipal solid waste incineration(MSWI)fly ash.Three process additives(NaOH,Na2 HPO4,H2 O),temperatures(150℃,185℃,220℃)and reaction times(1 h,2 h,3 h)were investigated to identify their effect on the disposal of fly ash samples through orthogonal experiments.High-resolution gas chromatography–mass spectrometry(HRGC/MS)was applied to determine the PCDD/F concentrations in MSWI fly ash.The experimental results revealed that 83.7%of total PCDD/Fs was degraded.Reaction temperature was the most important factor for the degradation of the total PCDD/Fs.Both direct destruction and chlorination reactions(the chlorination degree of PCDFs increased)took part in the degradation of PCDD/Fs in fly ash,which was a new discovery.Several PCDD/F indexes determined by the concentration of indicative congeners were found to quantitatively characterize the dioxin toxicity of the fly ash.Furthermore,heavy metals in the fly ash sample were solidified using microwave-assisted hydrothermal treatment,which provided an experimental basis for the simultaneous disposal of dioxins and heavy metals.Thus,the microwave-assisted hydrothermal process should be considered for the future disposal of MSWI fly ash.Qili Qiu Xuguang Jiang Guojun Lü Zhiliang Chen Shengyong Lu Mingjiang Ni Jianhua Yan Xiaobing Deng 2019Chinese Journal of Chemical Engineering2019,27,7:3
9Rapid activation of JNK and p38 by glucocorticoids in primary cultured hippocampal cells显示文摘Qi AQ Qiu J Xiao L Chen YZ 2005第二军医大学学报2005,26,10:3
10Preparation of Pt/K_2La_2Ti_3O_(10) and its photo-catalytic activity for hydrogen evolution from methanol water solution显示文摘A layered perovskite-type oxide K2La2Ti3O10 was prepared with high-temperature solid-state reaction, and characterized with X-ray diffraction (XRD) and ultraviolet-visible diffuse re-flectance spectroscopy (UV-Vis DRS). Platinum was loaded onto K2La2Ti3O10 as a co-catalyst with different methods. The dispersion of platinum on K2La2Ti3O10 was determined with HOT method. The photocatalytic activity of Pt/K2La2Ti3O10 was studied. This catalyst showed much higher activity in hydrogen evolution reaction than Ni/K2La2Ti3O10. The effects of different amounts of loaded platinum and several preparation methods were evaluated. The best achieved hydrogen evolution rate was 233.88 μmol·h?1 by Pt(2%)/K2La2Ti3O10. A possible band structure and mechanism were discussed based on the results.CUI Wenquan1,3, LIU Li2, FENG Liangrong1, XU Chenghua1, LI Zijian1, Lü Shaojie1 & QIU Fali1 1. Chengdu Institute of Organic Chemistry, Chinese Academy of Sciences, Chengdu 610041, China 2. Chemistry Department, Sichuan University of Science & Engineering, Zigong 643033, China 3. Graduate School of the Chinese Academy of Sciences, Beijing 100039, China Correspondence should be addressed to Qiu Fali 2006Science China Chemistry2006,49,2:3
11Coastal erosion in Shandong of China:status and protection challenges显示文摘Shandong has more than 70% of natural coasts are under erosion.Coastal erosion started from the 1970's and became a very serious problem at 1990 's.The dramatic decrease of sediment supplies from rivers caused rapid erosion at the delta and estuary areas,especially in the abandoned Yellow River Delta.Most sandy coasts along the Peninsula were eroded due to lack of sand supply and interruption of alongshore sediment drift,sand dredging from the beach or the offshore area caused serious erosion during short time. Sea-level rise causes slow but constant shoreline retreats and became a more serious threat.Different types of hard solutions for coastal protection against erosion were used in Shandong.Seawalls are most widely used,especially at the Yellow River Delta and city center waterfront.Groynes,jetties and breakwater are used on the north and east sandy coast of the Peninsula.Hard approaches are effective to protect the coast erosion but not change the erosion causes and led secondary impact on the coast.Soft engineering solution or the combined solutions are taken into acts.Beach nourishment is mostly considered as the better soft solution,especially to those tourists attracting sandy beaches along the Shandong coast.Long term monitoring and continuous lessons learning from the coastal erosion management will be adaptive for better coast solution in the future.Ping Yin Xiao-yong Duan Fei Gao Mei-na Li Sheng-hua Lü Jian-dong Qiu Liang-yong Zhou 2018China Geology2018,1,4:3
12Direct amination of benzene to aniline with several typical vanadium complexes显示文摘液体阶段到苯胺的苯的直接催化的胺化作用用一系列钒在醋酸水溶剂被执行(III, IV, V ) 有 N, O-ligands 或 O 的建筑群, O-ligands 作为催化剂和氢氧根胺水疗院氯化物作为 aminating 代理人。钒建筑群比 NaVO 3 或 VOSO 4 向苯胺的生产展出了许多更高的选择。在优化条件, 42.5% 的苯胺收益和有上面的一种高选择的 48 的一吨下面, 99.9% 用 0.2 mmol 被获得[VO (OAc )2] 作为催化剂。Yu Fen Lü Liang Fang Zhu Qiu Yuan Liu Bin Guo Xiao Ke Hu Chang Wei Hu 2009Chinese Chemical Letters2009,20,2:2
13Polychlorinated biphenyl congeners and organochlorine insecticides in the water column and sediments of Daya Bay, China 显示文摘Zhou J L Maskaoui K Qiu Y W 2001Environmental Pollution2001,113,:2
14Influence of Eutrophication on the Distribution of Total Mercury and Methylmercury in Hydroelectric Reservoirs显示文摘Meng Bo Feng X B Chen C X Qiu G L Sommar J Guo Y N Liang P Wan Q 2010EN2010,,5:2
15Morphological and molecular changes of maize plants after seeds beenflown on recoverable satellite显示文摘MEI M T QIU Y L HUANG Y Q 1998Adv Space Res1998,22,12:2
16Enhanced high-potential and elevated-temperature cycling stability of LiMn2O4 cathode by TiO2 modification for Li-ion battery 显示文摘Yu L Qiu x xi J Zhu W T Chen L Q 2006Eleetrochimica Acta2006,51,:1
17Development of an antigen capture immunoassay based on monoclonal antibodies specific for dengue virus serotype 2 nonstructural protein 1 for early and rapid identification of dengue virus serotype 2 infections显示文摘Qiu L W Di B Wen K 2009Clin Vaccine Immunol2009,16,:1
18Investor sentiment measure显示文摘Qiu L Welch B 2004NBER Working Paper2004,,:1
19H∞design of general multi-rate sampleddate control systems 显示文摘Chen T Qiu L 1994Automatic1994,30,7:1
20'Twin Copper Source' growth of metal-organic framework membrane- Cu3(BTC)2 with high permeability and selectivity for recyeling H2 显示文摘Guo H L Zhu G Hewitt I J Qiu S 2009Journal of American Chemical Society2009,131,20:1
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