|
|
|
题名
|
作者
|
年代
|
出处
|
被引量
|
| 1 | Characterization of Soil Quality Under Vegetable Production Along an Urban-Rural Gradient显示文摘Human activity and urbanization result in urban-rural environmental gradients. Understanding effect of the gradients on soil properties is necessary for management of the soils around urban areas. In this study, soil quality of some vegetable fields was characterized along an urban-rural gradient in Shaoxing County, Zhejiang Province. Fifteen soil physical and chemical properties were evaluated by using principal component analysis.Results showed that there was a great variation in the soil quality along the gradient. From rural to urban zones, soil organic matter, water-stable aggregates, cation exchangeable capacity (CEC), total N and P, and available K increased, whereas soil pH value decreased. In addition, Pb, Cu, Ni, Co, Zn and Cr in the soils tended to be accumulated toward the urban zone. Sequential chemical extraction showed that mobility of all the heavy metals in the soils tended to increase from the rural to the urban zones. The variation of soil properties accounted for by the first principal component was significantly explained by the difference in application rates of municipal wastes. | ZHANG MINGKUI, WANG MEIQING, LIU XINGMEI, JIANG HONG and XU JIANMINGCollege of Resource and Environmental Sciences, Zhejiang University, Hangzhou 310029 (China) | 2003 | Pedosphere2003，13，2： | 54 |
| 2 | Effect of active oxygen on the performance of Pt/CeO2 catalysts for CO oxidation显示文摘This study was focused on the influence of active oxygen on the performance of Pt/CeO_2 catalysts for CO oxidation. A series of CeO_2 supports with different contents of active oxygen were obtained by adding surfactant at different synthesis steps. 0.25 wt% Pt was loaded on these CeO_2 supports by incipientwetness impregnation methods. The catalysts were characterized by N2 adsorption, X-ray diffraction(XRD), high-resolution transmission electron microscopy(HRTEM), H_2 temperature-programmed reduction(H_2-TPR), dynamic oxygen storage capacity(DOSC) and in-situ DRIFTS technologies. For S-f supports, the surfactant was added into the solution before spray-drying in the synthesis process, which facilitates more active oxygen formation on the surface of CeO_2. After loading Pt, the more active oxygen on CeO_2 contributes to dispersing Pt species and enhancing the CO oxidation activity. As for the aged samples,Pt-R-h shows the highest activity above 190 ℃ because of the presence of more partly oxidized Pt^(δ+) species. Thus the activity is also influenced by the states of Pt and the Pt^(δ+) species may contribute to the high activity at elevated temperature. | Anbin Zhou Jun Wang Hui Wang Hang Li Jianqiang Wang Meiqing Shen | 2018 | Journal of Rare Earths2018，36，3： | 16 |
| 3 | Effects of Na+on Cu/SAPO-34 for ammonia selective catalytic reduction显示文摘Copper-exchanged chabazite(Cu/CHA) catalysts have been found to be affected by alkali metal and alkaline earth ions. However, the effects of Na^+ ions on Cu/SAPO-34 for ammonia selective catalytic reduction(NH_3-SCR) are still unclear. In order to investigate the mechanism, five samples with various Na contents were synthesized and characterized. It was observed that the introduced Na^+ ion-exchanges with H+and Cu^(2+)of Cu/SAPO-34. The exchange of H+is easier than that of isolated Cu^(2+). The exchanged Cu^(2+)ions aggregate and form 'CuAl_2O_4-like' species.The NH_3-SCR activity of Cu/SAPO-34 decreases with increasing Na content, and the loss of isolated Cu^(2+)and acid sites is responsible for the activity loss. | Can Wang Chen Wang Jun Wang Jianqiang Wang Meiqing Shen Wei Li | 2018 | Journal of Environmental Sciences2018，30，8： | 10 |
| 4 | Active manganese oxide on MnOx-CeO2 catalysts for low-temperature NO oxidation:Characterization and kinetics study显示文摘MnO_x-CeO_2 catalysts were synthesized to investigate the active sites for NO oxidation by varying the calcination temperature. XRD and TEM results showed that cubic CeO_2 and amorphous MnO_x existed in MnO_x-CeO_2 catalysts. High temperature calcination caused the sintering of amorphous MnO_x and transforming to bulk crystalline Mn_2O_3, H_2-TPR and XPS results suggested the valence of Mn in MnO_x-CeO_2 was higher than pure MnO_x, and decreased with the increasing calcination temperature, The turnover frequency(TOF) was calculated based on the initial reducibility according to H_2-TPR quantitation and kinetic study. The TOF results indicated that the initial reducibility of amorphous MnO_x with high valence manganese ions was equivalent to the active sites for NO oxidation. It can be inferred that the amorphous MnO_x plays a key role in low-temperature NO oxidation. | Lingkun Meng Jun Wang Zhihui Sun Jinxin Zhu Hang Li Jianqiang Wang Meiqing Shen | 2018 | Journal of Rare Earths2018，36，2： | 7 |
| 5 | Antioxidant effect of apolipoprotein A-I on high-fat diet-induced non-alcoholic fatty liver disease in rabbits显示文摘非酒精的脂肪肝疾病(NAFLD ) 是包含肝畸形的一个系列的一个逐渐地公认的条件。氧化压力和类脂化合物 peroxidation 是在 NAFLD 的关键 pathophysiological 机制,这被建议了。尽管 apolipoprotein A-I 的抗氧化剂效果(apoA -- 我) 被报导了,它对 NAFLD 的影响没被报导。这研究的目的是决定是否 apoA -- 我能改进在兔子通过它的抗氧化剂行动与高脂肪的导致食谱的 NAFLD 联系的生物化学、组织学的畸形。肝损坏被肝的系数评估,肝的类脂化合物试金,肝象肝节染色的 hematoxylineosin 一样的明显的畸形。类脂化合物 peroxidation 被测量 malondialdehyde (MDA ) 估计在肝的水平。氧化应力被测量 superoxide 估计 dismutase (草皮) ,谷胱甘肽 peroxidase (GPx ) ,和可诱导的氮的氧化物 synthase (iNOS ) 在浆液和肝的活动。另外,草皮, GPx,和过氧化氢酶(猫) 的 mRNA 表情层次被即时量的聚合酶链反应方法决定。结果显示出那 apoA --(20 或 40 mg/kg/w ) 我在减少全部的胆固醇, triglyceride,低密度的脂蛋白胆固醇,和 MDA 在高脂肪的食谱兔子铺平的肝的脂肪变性,发炎,肝的系数,和肝是有效的。另外, apoA -- 当在浆液和肝减少 iNOS 活动时,我增加了草皮和 GPx 活动。而且, apoA -- 我显著地在肝增加了草皮, GPx,和猫的 mRNA 表示层次。这研究显示出那 apoA -- 我在一本高脂肪的食谱导致的兔子对脂肪肝疾病施加了保护的效果,可能通过它的抗氧化剂行动。 | Weina Wang Wei Zhou Baolong Wang Haiyan Zhu Li Ye Meiqing Feng | 2013 | Acta Biochimica et Biophysica Sinica2013，45，2： | 5 |
| 6 | The spatial variation of soil bacterial community assembly processes affects the accuracy of source tracking in ten major Chinese cities显示文摘Urban soils harbor billions of bacterial cells and millions of species.However,the distribution patterns and assembly processes of bacterial communities remain largely uncharacterized in urban soils.It is also unknown if we can use the bacteria to track soil sources to certain cities and districts.Here,Illumina MiSeq sequencing was used to survey soil bacterial communities from 529 random plots spanning 61 districts and 10 major cities in China.Over a 3,000 km range,community similarity declined with increasing geographic distance(Mantel r=0.62),and community composition was clustered by city(R^(2)=0.50).Within cities(<100 km),the aforementioned biogeographic patterns were weakened.Process analysis showed that homogenizing dispersal and dispersal limitation dominated soil bacterial assembly at small and large spatial scales,respectively.Accordingly,the probabilities of accurately tracking random soil sources to certain cities and districts were 90.0% and 66.7%,respectively.When the tested samples originated from cities that were more than 1,265 km apart,the soil sources could be identified with nearly 100% accuracy.Overall,this study demonstrates the strong distance-decay relationship and the clear geographic zoning of urban soil bacterial communities among cities.The varied importance of different community assembly processes at multiple spatial scales strongly affects the accuracy of microbial source tracking. | Teng Yang Yu Shi Jun Zhu Chang Zhao Jianmei Wang Zhiyong Liu Xiao Fu Xu Liu Jiangwei Yan Meiqing Yuan Haiyan Chu | 2021 | Science China(Life Sciences)2021，64，9： | 4 |
| 7 | Research on Ce-Zr compounds on modifying γ-alumina washcoat on FeCrAl foils显示文摘Ce-Zr compounds such as Ce0.68Zr0.32O2 solid solution, Ce/Zr nitrate and CeO2/ZrO2 were added into γ-alumina-based slurries, which were then loaded on FeCrAl foils pretreated at 950°C and 1100°C. The microstructures and adhesion performance between the substrates and the washcoats were measured by SEM, BET surface area, ultrasonic vi- bration and thermal shock test. The results show that the addition of Ce0.68Zr0.32O2 solid solution, Ce/Zr nitrate and CeO2/ZrO2 into the slurries can improve γ-Al2O3-based washcoat adhesion on FeCrAl foils. Furthermore, ceria-zirconia solid solution increases the adhesion of the washcoat on the surface of an FeCrAl foil than the two others. The specific sur- face area of this washcoat remains about 43-45 m2/g and the weight loss is below 4.0% even after aging test of 10% steam-containing air at 1050°C for 20 h. | HUANG Ying SHEN Meiqing WANG Jun JIA Liwei | 2005 | Rare Metals2005，24，4： | 4 |
| 8 | Human apolipoprotein A-I exerts a prophylactic effect on high-fat diet-induced atherosclerosis via inflammation inhibition in a rabbit model显示文摘Apolipoprotein A-I (apoA -- 我) 是高密度的脂蛋白的主要功能的蛋白质部分。人的 apoA 的预防效果和机制 -- 我在动脉粥样硬化上(作为) 被调查在一高脂肪象兔子模型导致食谱。兔子与 apoA 被注射 -- 我每周一次当喂时为 20 个星期的高脂肪的饮食。我们的结果显示出那 apoA -- 我能提起高密度的脂蛋白胆固醇的浆液水平并且类脂化合物总数胆固醇, triglyceride,和低密度的脂蛋白胆固醇减少那些在作为兔子。减少的大动脉的匾区域和大动脉的损害度被染色的油红 O 也观察并且他在 apoA-I-treated 染色高脂肪象兔子导致食谱。进一步的学习阐明了那 apoA -- 我能包括细胞间的粘附分子的一些煽动性的调停人的表示打的下面调整 1,脉管的粘附 molecule-1 (VCAM-1 ) ,单核白血球 chemoattractant protein-1,肿瘤坏死因素 -- , interleukin-6 (IL-6 ) ,和在浆液和主动脉的 C 反应的蛋白质作为兔子。另外,即时量的 RT-PCR 分析证明 apoA --我注入减少了二个 支持inflammatory 分子的 mRNA 层次,即原子因素 kappa B ( NF-B )和 cyclooxygenase-2 ( COX-2 ),在主动脉作为兔子,它在 endothelial VCAM-1 和 IL-6 mRNA 抄写与伴随物减小被联系。一起,我们的结果支持 atheroprotective 和 apoA 的预防角色 -- 我可以与它的反煽动性的效果在 vivo,和这项活动被相关。 | Jiyang Li Weina Wang Lei Han Meiqing Feng Hui Lu Li Yang Xiangxiang Hu Si Shi Shanshan Jiang Qian Wang Li Ye | 2017 | Acta Biochimica et Biophysica Sinica2017，49，2： | 3 |
| 9 | Possible negative influences of increasing content of cerium on activity and hydrothermal stability of Rh/ceria-zirconia three-way catalysts显示文摘The activity and hydrothermal stability of the Rh/Ce_(x)Zr_(1-x)O_(2)(x=0,0.05,0.3,0.5) model three-way catalysts for gasoline vehicle emissions control were investigated in this work.Among the Rh/Ce_(x)Zr_(1-x)O_(2) samples with different Ce/Zr ratios,the Rh/ZrO_(2) sample exhibits a significantly better activity and hydrothermal stability than the rest of the samples.The impacts of having more Ce components in the Rh/Ce_(x)Zr_(1-x)O_(2) catalysts are associated with the strong Rh-O-Ce interaction that tends to over stabilize the rhodium species.A significant amount of such rhodium atoms can be found in the bulk of the support oxides after a hydrothermal aging at 1050℃ with 10% H_(2)O in air for 12 h.Differently,the sintering of rhodium on the surface of Rh/ZrO_(2) catalysts is the main reason for the catalyst deactivation during the hydrothermal aging.These findings provide an example where high dispersion of supported metal induced by strong metal-support interactions does not necessarily lead to high catalytic activity. | Tianming Huang Meiqing Shen Guanghao Cheng Yunhao Wang Jianqiang Wang Wei Li Se HOh Gongshin Qi Ming Yang Jun Wang | 2021 | Journal of Rare Earths2021，39，7： | 3 |
| 10 | Preparation of Fe_x Ce_(1-x) O_y solid solution and its application in Pd-only three-way catalysts显示文摘FeO x-CeO 2 mixed oxides with increasing Fe/(Ce+Fe) atomic ratio(1-20 mol%) were prepared by sol-gel method and characterized by X-ray powder diffraction(XRD),Brunauer-Emmett-Teller(BET) and Hydrogen temperature-programmed reduction(H 2-TPR) techniques.The dynamic oxygen storage capacity(DOSC) was investigated by mass spectrometry with CO/O 2 transient pulses.The powder XRD data following Rietveld refinement revealed that the solubility limit of iron oxides in the CeO 2 was 5 mol% based on Fe/(Ce+Fe).The lattice parameters experienced a decrease followed by an increase due to the influence of the maximum solubility limit of iron oxides in the CeO 2.TPR analysis revealed that Fe introduction into ceria strongly modified the textual and structural properties,which influenced the oxygen handling properties.DOSC results revealed that Ce-based materials containing Fe oxides with multiple valences contribute to the majority of DOSC.The kinetic analysis indicated that the calculated apparent kinetic parameters obey the compensation effect.The three-way catalytic performance for Pd-only catalysts based on the Fe doping support exhibited the redundant iron species separated out of the CeO 2 and interacted with the ceria and Pd species on the surface,which seriously influenced the catalytic properties,especially after hydrothermal aging treatment. | Jianqiang Wang Meiqing Shen Jun Wang Mingshan Cui Jidong Gao Jie Ma Shuangxi Liu | 2012 | Journal of Environmental Sciences2012，24，4： | 3 |
| 11 | Strategic design and fabrication of MXenes-Ti_(3)CNCl_(2)@CoS_(2) core-shell nanostructure for high-efficiency hydrogen evolution显示文摘CoS_(2) is considered to be a promising electrocatalyst for hydrogen evolution reaction(HER).However,its further widespread applications are hampered by the unsatisfactory activity due to relatively high chemisorption energy for hydrogen atom.Herein,theoretical predictions of first-principles calculations reveal that the introduction of a Cl-terminated MXenes-Ti_(3)CNCl_(2) can significantly reduce the HER potential of CoS_(2)-based materials and the Ti_(3)CNCl_(2)@CoS_(2) core–shell nanostructure has Gibbs free energy of hydrogen adsorption(|ΔGH|)close to zero,much lower than that of the pristine CoS_(2) and Ti_(3)CNCl_(2).Inspired by the theoretical predictions,we have successfully fabricated a unique Ti_(3)CNCl_(2)@CoS_(2) core–shell nanostructure by ingeniously coupling CoS_(2) with a Cl-terminated MXenes-Ti_(3)CNCl_(2).Interface-charge transfer between CoS_(2) and Ti_(3)CNCl_(2) results in a higher degree of electronic localization and a formation of chemical bonding.Thus,the Ti_(3)CNCl_(2)@CoS_(2) core–shell nanostructure achieves a significant enhancement in HER activity compared to pristine CoS_(2) and Ti_(3)CNCl_(2).Theoretical calculations further confirm that the partial density of states of CoS_(2) after hybridization becomes more non-localized,and easier to interact with hydrogen ions,thus boosting HER performance.In this work,the success of oriented experimental fabrication of high-efficiency Ti_(3)CNCl_(2)@CoS_(2) electrocatalysts guided by theoretical predictions provides a powerful lead for the further strategic design and fabrication of efficient HER electrocatalysts. | Jizhou Jiang Saishuai Bai Meiqing Yang Jing Zou Neng Li Jiahe Peng Haitao Wang Kun Xiang Song Liu Tianyou Zhai | 2022 | Nano Research2022，15，7： | 2 |
| 12 | Inhibitory effect of apolipoprotein A-I on matrix metalloproteinase-2 expression in vivo and in vitro显示文摘在现在的学习,我们调查了 apolipoprotein A-I 的效果(apoA -- 我) 在矩阵 metalloproteinase-2 (MMP-2 ) 上在 vivo 并且在 vitro 的表示。首先,我们检测了 apoA 的效果 -- 我在主动脉 MMP-2 上,激活 proliferator 的受体 /(PPAR /) , cyclooxygenase-2 (COX-2 ) ,和在动脉粥样硬化患者兔子的原子因素 kappa B (NF-B ) 表情用 immunohistochemical 方法建模的 peroxisome。结果证明 MMP-2, COX-2,和 NF-B 的表情在与 apoA 对待的动脉粥样硬化患者兔子的主动脉被减少 -- 我,当 PPAR / 表示被增加时。然后,我们选择了重要发炎房间,在 vitro 证明那些效果的巨噬细胞。巨噬细胞被划分成六个组并且与 apoA 的不同集中对待 -- 我, MMP-2 的 mRNA 表情, PPAR / ,和 COX-2 然后用 PPAR 的反向抄写的聚合酶链反应,和蛋白质表示被决定, NF-B 被西方的污点分析检测。在有教养的上层清液的 MMP-2 和 PPAR 的层次用连接酶的 immunosorbent 试金被决定。有趣地,在里面 vitro 结果类似于结果在里面 vivo 学习。在有 apoA 的孵化以后 -- 我为 24 h, MMP-2 的表情, COX-2,和 NF-B 被减少,当 PPAR / 表示被增加时。在他们在在 vivo 并且在 vitro 做匾马厩的进程的特别角色的考虑,我们推测 apoA 的禁止的效果 -- 我可以与 apoA 的效果在 MMP-2 表示上有一种靠近的关系 -- 我在 PPAR / , COX-2,和 NF-B 表达式上。尽管进一步的研究被需要澄清这些效果的内在的机制,我们的调查结果提供新奇卓见进 apoA 的反动脉粥样硬化患者匾破裂效果 -- 我。 | Weina Wang Xunlong Shi Yuan Yuan Haiyan Zhu Wei Zhou Hai Huang Meiqing Feng | 2013 | Acta Biochimica et Biophysica Sinica2013，45，3： | 2 |
| 13 | Physiology and Biochemistry Changes of Euphorbia pulcherrima During Leaf Color Transformation显示文摘Reasons for the color change of E.pulcherrima were studied with physiological and biochemical paraments such as: chlorophyll,carotenoids,anthocyanin,Phenylalanine ammonia-lyase (PAL),pH of cell sap in leaves and soluble sugar content etc.The results showed that during the period of the leaf color transmittion of E.pulcherrima,the contents of plastid pigment,soluble sugar and pH of cells sap in leaves showed a high-low-high dynamic change,while the contents of anthocyanin and PAL activity showed the low-high-low dynamic change.Anthocyanin stability had the close relationship with pH of cell sap in leaves,temperature and other conditions. | WANG Lijuan,SUN Meiqing,and NIU De College of Life Sciences,Northeast Agricultural University,Harbin 150030,China | 2010 | Journal of Northeast Agricultural University(English Edition)2010，17，2： | 2 |
| 14 | Synthesis of Monodisperse CexZr1-xO2 Nanocrystals and the Size-Dependent Enhancement of Their Properties显示文摘Monodisperse Ce1 ? x Zr x O2 nanocrystals 用一条简单二阶段的途径被综合了;调整使用的先锋的比率,盖住使用的代理人的数量,反应时间和温度在他们的作文,结构和尺寸上负担得起精确控制。氧存储能力的尺寸依赖者改进和氧存储和版本的动力学被观察。系统的研究被进行以便理解这些性质的尺寸依赖者改进。这个工作向重要卓见提供进合成和多部件 nanocrystals 的基本理解应用的一个大变化。 | Yuewei Zhang Jing Wen Jun Wang Daocheng Pan Meiqing Shen Yunfeng Lu | 2011 | Nano Research2011，4，5： | 2 |
| 15 | A hybrid fractal video compression method 显示文摘 | WANG MEIQING LAI CHOIHONG | 2005 | Computers and Mathematics with Applications2005，50，34： | 1 |
| 16 | Transcriptional expression of glioma chemotherapy drugs associatedmarker molecules in gliomas and normal brain tissues显示文摘 | Yaodong Zhao Yajun Xue Quanbin Zhang Ke Wang Jia Yin Meiqing Lou | 2013 | Cancer Biomarkers2013，，1： | 1 |
| 17 | Matching search in fractal video compression and its parallel implementation in distributed computing environments显示文摘 | Meiqing Wang Zhehuang Huang | | 0，，： | 1 |
| 18 | Levonorgestrel Inhibits Human Endometrial Cell Proliferation through the Upregulation of Gap Junctional Intercellular Communication via the Nuclear Translocation of Ser255 Phosphorylated Cx43显示文摘 | Xiaomiao Zhao Xueliang Tang Tingting Ma Miao Ding Lijuan Bian Dongmei Chen Yangzhi Li Liangan Wang Yanyan Zhuang Meiqing Xie Dongzi Yang Ignacio Zapardiel | 2015 | BioMed Research International2015，，： | 1 |
| 19 | Ca- talytic performance of NO oxidation over LaMeO3 ( Me = Mn, Fe, Co) perovskite prepared by the sol-gel method 显示文摘 | Jiahao Chen Meiqing Shen Xinquan Wang | 2013 | Catal Commun2013，37，： | 1 |
| 20 | Rapid and simple spectrophotometric determination of persulfate in water by microwave assisted decolorization of Methylene Blue显示文摘A rapid and simple method for determination of persulfate in aqueous solution was developed. The method is based on the rapid reaction of persulfate with Methylene Blue(MB) via domestic microwave activation, which can promote the activation of persulfate and decolorize MB quickly. The depletion of MB at 644 nm(the maximum absorption wavelength of MB) is in proportion to the increasing concentration of persulfate in aqueous solution. Linear calibration curve was obtained in the range 0–1.5 mmol/L, with a limit of detection of 0.0028 mmol/L. The reaction time is rapid(within 60 sec), which is much shorter than that used for conventional methods. Compared with existing analytical methods, it need not any additives, especially colorful Fe2+, and need not any pretreatment for samples, such as p H adjustment. | Lajuan Zhao Shiying Yang Leilei Wang Chao Shi Meiqing Huo Yan Li | 2015 | Journal of Environmental Sciences2015，27，5： | 1 |
您所在的机构暂未开通此部分的功能，请联系管理员