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21篇 您的检索式:作者名="Liu Wanyi"
    题名 作者 年代 出处 被引量
1First Total Synthesis of (±)-Puyanin and (±)-4'-O-Methylbonannione显示文摘为二自然地发生的 geranylated flavonoids 的第一全部的合成的一条灵巧的途径,(Zhang, Yuheng Yang, Jinhui Li, Hongjun Jiang, Shizhi Li, Yunfeng Liu, Wanyi 2011Chinese Journal of Chemistry2011,29,3:6
2Geochemistry and Zircon U–Pb–Hf Isotopic Systematics of the Sanchahe Quartz Monzonite Intrusion in the North Qinling Tectonic Zone, Central China: Implications for its Petrogenesis and Tectonic Setting显示文摘The Sanchahe quartz monzonite intrusion is situated in the middle segment of the North Qinling tectonic belt, Central China mainland, and consists chiefly of sanukitoid–like and granodioritic-monzogranitic rocks. The sanukitoid–like rocks are characterized by quartz monzonites, which display higher Mg#(55.0–59.0), and enrichments in Na2 O+K2 O(7.28–8.94 %), Ni(21-2312 ppm), Cr(56-4167 ppm), Sr(553-923 ppm), Ba(912-1355 ppm) and LREE((La/Yb)N =9.47–15.3), from negative to slightly positive Eu anomalies(δEu=+0.61 to +1.10), but also depletion in Nb, Ta and Ti. The granodioritic-monzogranitic rocks diaplay various Mg#of 6.00-53.0, high Na2 O+K2 O(7.20– 8.30%), Sr(455–1081 ppm) and(La/Yb)N(27.6–47.8), with positive Eu anomalies(δEu=1.03–1.57) and depleted Nb, Ta and Ti. Laser ablation inductively coupled plasma mass spectrometry(LA-ICPMS) zircon U-Pb isotopic dating reveals that the sanukitoid-like rocks were emplaced at two episodes of magmatism at 457±3 Ma and 431±2 Ma, respectively. The monzogranites were emplaced at 445±7Ma. Sanukitoid–like rocks have their εHf(t) values ranging from +0.3 to +15.1 with Hf–depleted mantle model ages of 445 to 1056 Ma, and the monzogranite shows its εHf(t) values ranging from 21.6 to +10.8 with Hf–depleted mantle model ages of 635 to 3183 Ma. Petrological, geochemical and zircon Lu –Hf isotopic features indicate that the magmatic precursor of sanukitoid–like rocks was derived from partial melting of the depleted mantle wedge materials that were metasomatized by fluids and melts related to subduction of oceanic slab, subsequently the sanukitoid magma ascended to crust level. This emplaced mantle magma caused partial melting of crustally metamorphosed sedimentary rocks, and mixing with the crustal magma, and suffered fractional crystallization, which lead to formations of quartz monzonites. However, the magmatic precursor of the granodioritic-monzogranitic rocks were derived from partial melting of subducted oceanic slab basalts. Integrated previous investigation for the adackitic rocks in the south of the intrusion, the Sanchahe intrusion signed that the North Qinling tectonic zone was developed in an early Paleozoic transitionally tectonic background from an island arc to back–arc.YAN Ming LIU Shuwen LI Qiugen ZHANG Wanyi YANG Pengtao YAN Zhen WANG Ruiting WANG Wei GUO Rongrong 2014Acta Geologica Sinica(English Edition)2014,88,1:3
3Structural properties and catalytic performance of the La-Cu-Zn mixed oxides for CO2 hydrogenation to methanol显示文摘A series of La-Cu-Zn-O mixed oxide catalysts were synthesized by a co-precipitation method and calcined under different temperatures. The XRD, BET, TPR, N_2 O-adsorption, XPS, SEM and TPD techniques were carried out to measure the aimed catalysts. The results indicated that the chemical environment of lanthanum element changes with the increase of calcination temperature. The La_2 CuO_4 perovskite structure is obtained at the temperature higher than 823 K and the special copper species appear in the perovskites due to the special structure property. The catalysts with La_2 CuO_4 perovskite structure show higher methanol selectivity compared with the mixed copper catalyst. For the perovskite catalysts, the conversion of CO_2 changes with the same tendency of the copper species ratio((Cu^(α+)+Cu^0)/(Cu_(Total))%), which implied both Cu^(α+) and Cu^0 are important active sites in the perovskite catalyst for the reaction.Haijuan Zhan Zhiqiang Wu Ning Zhao Wanyi Liu Wei Wei 2018Journal of Rare Earths2018,36,3:3
4A 10-miRNA risk score-based prediction model for pathological complete response to neoadjuvant chemotherapy in hormone receptor-positive breast cancer显示文摘Patients with hormone receptor(HR)-positive tumors breast cancer usually experience a relatively low pathological complete response(p CR)to neoadjuvant chemotherapy(NAC).Here,we derived a 10-micro RNA risk score(10-mi RNA RS)-based model with better performance in the prediction of p CR and validated its relation with the disease-free survival(DFS)in 755 HRpositive breast cancer patients(273,265,and 217 in the training,internal,and external validation sets,respectively).This model,presented as a nomogram,included four parameters:the 10-mi RNA RS found in our previous study,progesterone receptor(PR),human epidermal growth factor receptor 2(HER2)status,and volume transfer constant(K).Favorable calibration and discrimination of 10-mi RNA RS-based model with areas under the curve(AUC)of 0.865,0.811,and 0.804 were shown in the training,internal,and external validation sets,respectively.Patients who have higher nomogram score(>92.2)with NAC treatment would have longer DFS(hazard ratio=0.57;95%CI:0.39–0.83;P=0.004).In summary,our data showed the 10-mi RNA RS-based model could precisely identify more patients who can attain p CR to NAC,which may help clinicians formulate the personalized initial treatment strategy and consequently achieves better clinical prognosis for patients with HRpositive breast cancer.Chang Gong Ziliang Cheng Yaping Yang Jun Shen Yingying Zhu Li Ling Wanyi Lin Zhigang Yu Zhihua Li Weige Tan Chushan Zheng Wenbo Zheng Jiajie Zhong Xiang Zhang Yunjie Zeng Qiang Liu RStephanie Huang Andrzej LKomorowski Eddy SYang François Bertucci Francesco Ricci Armando Orlandi Gianluca Franceschini Kazuaki Takabe Suzanne Klimberg Naohiro Ishii Angela Toss Mona PTan Mathew A Cherian Erwei Song 2022Science China(Life Sciences)2022,65,11:3
5Unexpected fast radical production emerges in cool seasons:implications for ozone pollution control显示文摘Ozone is a crucial air pollutant that damages human health and vegetation.As it is related to the photo-oxidation of the nitrogen oxides and volatile organic compounds,the summertime reduction of these precursors is the primary focus of current ozone mitigation strategies.During ozone pollution episodes in eastern China,an observed accumulation of daily total oxidants(O_(x)=NO_(2)+O_(3))in cool seasons(spring and autumn:60 ppb and winter 40 ppb)is comparable to that in summer(60 ppb),indicating fast photochemical production of secondary pollutants including ozone over the year.Unrecognized fast radical primary productions are found to counteract the increased termination of hydroxyl radical and unfavorable meteorological conditions to maintain the rapid total oxidant formations in cool seasons.Elucidating and regulating the primary radical sources may be critical for the secondary air pollution control in cool seasons.Hongli Wang Yanhui Liu Xiaorui Chen Yaqin Gao Wanyi Qiu Shengao Jing Qian Wang Shengrong Lou Peter MEdwards Cheng Huang Keding Lu 2022National Science Open2022,1,2:2
6Recent Progress on 2D Transition Metal Compounds-based Electrocatalysts for Efficient Nitrogen Reduction显示文摘Ammonia is a commodity chemical with high added value.Electrochemical reduction of nitrogen has great promise for the sustainable synthesis of ammonia in recent vears.Because of its rich resources and unique electronic structure and characteristics,2D transition metal compounds have been used as electrocatalysts for electro-chemical reduction of nitrogen for clean and sustainable production of ammonia,This review outlines the latest development in the use of 2D transition metal compounds as high-efficiency electrocatalysts for nitrogen reduction.reaction(NRR).First,we introduce the N,reduction mechanism,and briefly summarize the performance indicators ofthe catalyst.Then,we focused on the functionalization of unique 2D materials to design high-performance 2D electrocatalysts in respect of simulation calculation and experimental development.Finally,the current challenges and future opportunities for NRR electrocatalvsts are introduced.DONG Wcnfei CHEN Xiaoyu PENG Juan LIU Wanyi JIN Xiaoyong NI Gang LIU Zheng 2020Chemical Research in Chinese Universities2020,36,4:2
7Development of a real time PCR assay for rapid detection of Vibrio parahaemolyticus from seafood显示文摘A real time PCR assay for the detection of Vibrio para-haemolyticus in seafood samples was developed using a novel specific target and a competitive internal ampli-fication control(IAC).The specificity of this assay was evaluated using 390 bacterial strains including V.parahaemolyticus,and other strains belonging to Vibrio and non-Vibrio species.The real time PCR assay un-ambiguously distinguished V.parahaemolyticus with a detection sensitivity of 4.8 fg per PCR with purified genomic DNA or 1 CFU per reaction by counting V.parahaemolyticus colonies.The assays of avoiding interference demonstrated that,even in the presence of 2.1μg genomic DNA or 107 CFU background bacteria,V.parahaemolyticus could still be accurately detected.In addition,the IAC was used to indicate false-negative results,and lower than 94 copies of IAC per reaction had no influence on the detection limit.Ninety-six sea-food samples were tested,of which 58(60.4%)were positive,including 3 false negative results.Conse-quently,the real time PCR assay is effective for the rapid detection of V.parahaemotyticus contaminants in seafood.Bin Liu Xiaohua He Wanyi Chen Shuijing Yu Chunlei Shi Xiujuan Zhou Jing Chen Dapeng Wang Xianming Shi 2012Protein & Cell2012,3,3:2
8Vertical Profiles of Volatile Organic Compounds in Suburban Shanghai显示文摘As Volatile Organic Compounds(VOCs)are one of the precursors of ozone,their distribution and variable concentrations are highly related to local ozone pollution control.In this study,we obtained vertical profiles of VOCs in Shanghai’s Jinshan district on 8 September and 9 September in 2016 to investigate their distribution and impact on local atmospheric oxidation in the near surface layer.Vertical samples were collected from heights between 50 m and 400 m by summa canisters using an unmanned aerial vehicle(UAV).Concentrations of VOCs(VOCs refers to the 52 species measured in this study)varied minimally below 200 m,and decreased by 21.2%from 100 m to 400 m.The concentrations of VOCs above 200 m decreased significantly in comparison to those below 200 m.The proportions of alkanes and aromatics increased from 55.2%and 30.5%to 57.3%and 33.0%,respectively.Additionally,the proportion of alkenes decreased from 13.2%to 8.4%.Toluene and m/p-xylene were the key species in the formation of SOA and ozone.Principal component analysis(PCA)revealed that the VOCs measured in this study mainly originated from industrial emissions.Yuhan LIU Hongli WANG Shengao JING Ming ZHOU Shenrong LOU Kun QU Wanyi QIU Qian WANG Shule LI Yaqin GAO Yusi LIU Xiaobing LI Zhong-Ren PENG Junhui CHEN Keding LU 2021Advances in Atmospheric Sciences2021,38,7:1
9Preparation of 1, 5-diketone derivatives containing ferrocenyl by michaere- action under solvent free condition 显示文摘Liu Wanyi Xu Qihai Liang Yongmin 2001J Org Chem2001,637,:1
10Electrocatalytic oxidation of N-acetyl-L-cysteine by acetylferrocene at glassy carbon electrode显示文摘GAO Zuoning ZHANG Juan LIU Wanyi 2005J Electroanal Chem2005,580,:1
11Study on electrocatalytic oxidation of L-cysteine at glassy carbon electrode by ( FcM ) TMA and its electrochemical kinetics 显示文摘GAO Zuoning YAO Huiqin LIU Wanyi 2005Electroanal2005,17,:1
12Electrocatalytic oxidation of sulfite by acetylferrocene at glassy carbon electrode 显示文摘GAO Zuoning MA Jinfu LIU Wanyi 2005Appl Organometal Chem2005,19,:1
13Electrocatalytic oxidation of N-acetyl-L-cysteine by acetylferrocene at glassy carbon electrode显示文摘GAO Zuoning ZHANG Juan LIU Wanyi 2005J Electroanal Chem2005,580,:1
14Influences of Catalyst Amount in Xerogels Precursors on the Structure and Property of Silicon Carbide with Taixi Coal as Carbon Source显示文摘Kangli He Aonan Fan Jianping Jia Wanyi Liu Bing Li 2014材料科学研究(中英文版)2014,3,2:1
15Study on elec trocatalytic oxidation of L-cysteine at glassy carbon electrode by (FcM) TMA and its electrochemical kinetics显示文摘Gao Zuoning Yao Huiqin Liu Wanyi 2005Electroanalysis2005,17,7:1
16Geometric Deviation Modeling by Kinematic Matrix Based on Lagrangian Coordinate显示文摘Typical representation of dimension and geometric accuracy is limited to the self-representation of dimension and geometric deviation based on geometry variation thinking, yet the interactivity affection of geometric variation and gesture variation of multi-rigid body is not included. In this paper, a kinematic matrix model based on Lagrangian coordinate is introduced, with the purpose of unified model for geometric variation and gesture variation and their interactive and integrated analysis. Kinematic model with joint, local base and movable base is built. The ideal feature of functional geometry is treated as the base body; the fitting feature of functional geometry is treated as the adjacent movable body; the local base of the kinematic model is fixed onto the ideal geometry, and the movable base of the kinematic model is fixed onto the fitting geometry. Furthermore, the geometric deviation is treated as relative location or rotation variation between the movable base and the local base, and it's expressed by the Lagrangian coordinate. Moreover, kinematic matrix based on Lagrangian coordinate for different types of geometry tolerance zones is constructed, and total freedom for each kinematic model is discussed. Finally, the Lagrangian coordinate library, kinematic matrix library for geometric deviation modeling is illustrated, and an example of block and piston fits is introduced. Dimension and geometric tolerances of the shaft and hole fitting feature are constructed by kinematic matrix and Lagrangian coordinate, and the results indicate that the proposed kinematic matrix is capable and robust in dimension and geometric tolerances modeling.LIU Weidong HU Yueming LIU Yu DAI Wanyi 2015Chinese Journal of Mechanical Engineering2015,28,5:1
17Adsorption Mechanism of Composite Whisker on Copper Ions and Lead Ions显示文摘LIU Juan XUE Wenjing BAO Yongchao CHENG Wanyi 2018Chemical Research in Chinese Universities2018,34,5:1
18Implementing the free HPV vaccination for adolescent girls aged below 14 in Shenzhen,Guangdong Province of China:experience,challenges,and lessons显示文摘Cervical cancer is a major public health concern in China,accounting for almost one-fifth of the global incidence and mortality.The recently prequalified domestic bivalent human papillomavirus(HPV)vaccine offers a practical and feasible preventive measure.In response to the global call for action,the National Health Commission issued an Action Plan to eliminate cervical cancer by 2030,with promotion of the HPV vaccination for school-aged girls as a critical step.Despite this,implementation of the vaccination has been patchy,with very low coverage among eligible girls.To address this,from December 2021 to December 2022,a demonstration project was launched in Shenzhen,Guangdong Province,to promote the inclusion of HPV vaccine in local immunisation programme and to address existing barriers to implementation.Using multiple sources of data,this article presents a case study of the demonstration project,analysing its impact on rolling out HPV vaccination among eligible girls and identifying any challenges encountered during implementation.The demonstration project has shown promising results in increasing the HPV vaccination rate,promoting public awareness and acceptance of the domestic HPV vaccine,and establishing a model for quickly scaling up the vaccination at the municipal level.The success of the project can be attributed to several factors,including strong governmental commitment,sufficient funding,multi-sectoral collaboration,ensured vaccine accessibility and affordability,improved vaccination services,and effective health education and communication strategies.Lessons learned from Shenzhen can provide valuable insights for future advocacy and implementation of the vaccination in other areas of China,but challenges must be addressed to achieve universal coverage.These include addressing vaccine hesitancy,expanding the programme to cover a broader age range,and ensuring consistent quality of vaccination services in primary care facilities.Overcoming these challenges will require innovative strategies,public-private partnerships,and sustained funding and resources.Future research should focus on evaluating the long-term effectiveness of the vaccination programme and identifying contextual factors that may impact its implementation in different settings.Overall,the effective control of cervical cancer in China will rely on the“political will”to ensure the incorporation of preventive interventions into policies and universal programme coverage.Dadong Wu Peiyi Liu Danhong Song He Wang Siqi Chen Wanyi Tang Xuelian Zhao Fanghui Zhao Yueyun Wang 2023Infectious Diseases of Poverty2023,12,5:0
19Deep insight into the B-cell associated tertiary lymphoid structure and tumor immunotherapy显示文摘Bod et al.1 recently published a study in Nature that garnered attention to B cell-associated anti-tumor immunity and immunotherapy of melanoma and other tumors1.As a promising supplemental immunotherapy to mainstream methods that target T and natural killer(NK)cells,B cell-associated anti-tumor immunotherapy is promising。Jilong Yang Jin Xu Haotian Liu Wanyi Xiao Gengpu Zhang 2024Cancer Biology & Medicine2024,21,2:0
20Iron-nickel alloy particles with N-doped carbon “armor” as a highly selective and long-lasting catalyst for the synthesis of Nbenzylaniline molecules显示文摘A scalable strategy for the convenient and rapid preparation of nitrogen-doped carbon-coated iron-based alloy catalysts was developed.By controlling the type and amount of metal salts in the precursor,various types of nitrogen-doped carbon-coated alloy catalysts can be prepared in a targeted manner.Fe_(2)Ni2@CN materials with small particle sizes and relatively homogeneous basic sites showed promising results in the N-alkylation reaction of benzyl alcohol with aniline(optimum yield:99%).It is worth noting that the catalyst can also be magnetically separated and recovered after the reaction,and its performance can be regenerated through simple calcination.Furthermore,it was confirmed by kinetic experiments that the activation of C–H at the benzyl alcohol benzylic position is the rate-determining step(RDS).According to density flooding theory calculations,Fe_(2)Ni2@CN catalysts require less energy than other materials(Fe@CN and Ni@CN)for the RDS(dehydrogenation reaction)process.Therefore N-alkylation reactions are more easily carried out on Fe_(2)Ni2@CN catalysts,which may be the reason for the best catalytic activity of Fe-Ni alloy materials.These carbon-coated alloy materials will show great potential in more types of heterogeneous catalysis.Gang Wang Longchao Sun Wanyi Liu Haijuan Zhan Shuxian Bi 2024Nano Research2024,17,4:0
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