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40篇 您的检索式:作者名="Yabo Li"
    题名 作者 年代 出处 被引量
1Experimental and numerical study on fretting wear and fatigue of full-scale railway axles显示文摘This study investigated the fretting wear and fatigue of full-scale railway axles.Fatigue tests were conducted on full-scale railway axles,and the fretting wear and fretting fatigue in the fretted zone of the railway axles were analysed.Three-dimensional finite element models were established based on the experimental results.Then,multi-axial fatigue parameters and a linear elastic fracture mechanics-based approach were used to investigate the fretting fatigue crack initiation and propagation,respectively,in which the role of the fretting wear was taken into account.The experimental and simulated results showed that the fretted zone could be divided into zones I-III according to the surface damage morphologies.Fretting wear alleviated the stress concentration near the wheel seat edge and resulted in a new stress concentration near the worn/unworn boundary in zone II,which greatly promoted the fretting crack initiation at the inner side of the fretted zone.Meanwhile,the stress concentration also increased the equivalent stress intensity factor range DKeq below the mating surface,and thus promoted the propagation of fretting fatigue crack.Based on these findings,the effect of the stress redistribution resulting from fretting wear is suggested to be taken into account when evaluating the fretting fatigue in railway axles.Lang Zou Dongfang Zeng Yabo Li Kai Yang Liantao Lu Caiqin Yuan 2020Railway Engineering Science2020,28,4:7
2Visualization of perforin/gasdermin/complement-formed pores in real cell membranes using atomic force microscopy显示文摘Different types of pores ubiquitously form in cell membranes,leading to various types of cell death that profoundly influence the fate of inflammation and the disease status.However,these pores have never truly been visualized to date.Atomic force microscopy(AFM),which is emerging as a powerful tool to analyze the mechanical properties of biomolecules and cells,is actually an excellent imaging platform that allows biological samples to be visualized by probing surface roughness at the level of atomic resolution.Here,membrane pore structures were clearly visualized using AFM.This visualization not only describes the aperture and depth of the pore complexes but also highlights differences among the pores formed by perforin and gasdermins in tumor cell membranes and by complement in immune cell membranes.Additionally,this type of visualization also reveals the dynamic process of pore formation,fusion,and repair.Yuying Liu Tianzhen Zhang Yabo Zhou Jiping Li Xiaoyu Liang Nannan Zhou Jiadi Lv Jing Xie Feiran Cheng Yiliang Fang Yunfeng Gao Ning Wang Bo Huang 2019Cellular & Molecular Immunology2019,16,6:6
3Vegfa signaling regulates diverse artery/vein formation in vertebrate vasculatures显示文摘Vascular endothelial growth factor A(Vegfa) signaling regulates vascular development during embryogenesis and organ formation.However,the signaling mechanisms that govern the formation of various arteries/veins in various tissues are incompletely understood.In this study,we utilized transcription activator-like effector nuclease(TALEN) to generate zebrafish vegfaa mutants.vegfaa^(-/-) embryos are embryonic lethal,and display a complete loss of the dorsal aorta(DA) and expansion of the cardinal vein.Activation of Vegfa signaling expands the arterial cell population at the expense of venous cells during vasculogenesis of the axial vessels in the trunk.Vegfa signaling regulates endothelial cell(EC) proliferation after arterial-venous specification.Vegfa deficiency and overexpression inhibit the formation of tip cell filopodia and interfere with the pathfinding of intersegmental vessels(ISVs).In the head vasculature,vegfaa^(-/-) causes loss of a pair of mesencephalic veins(MsVs) and central arteries(CtAs),both of which usually dvelop via sprouting angiogenesis.Our results indicate that Vegfa signaling induces the formation of the DA at the expense of the cardinal vein during the trunk vasculogenesis,and that Vegfa is required for the angiogenic formation of MsVs and CtAs in the brain.These findings suggest that Vegfa signaling governs the formation of diverse arteries/veins by distinct cellular mechanisms in vertebrate vasculatures.Daqing Jin Diqi Zhu Yabo Fang Yiwei Chen Gaihong Yu Weijun Pan Dong Liu Fen Li Tao P.Zhong 2017Journal of Genetics and Genomics2017,44,10:6
4Study of ultrahigh-purity copper billets refined by vacuum melting and directional solidification显示文摘The purpose of this paper is to study large-sized copper billets refined with 5N ultrahigh purity after vacuum melting and directional solidifi-cation (VMDS). The precise impurity analysis of copper billets was carried out with a glow discharge mass spectrometer (GDMS). The re-sults demonstrate that the total concentration of twenty-two impurities is decreased by 63.1wt.%-66.5 wt.%. Ag, P, S, Na, Mg, Se, Zn, In and Bi are easy to be removed due to lgPimp - lgPCu > 1.5, and they can be removed effectively under the vacuum condition of 1650-1700 K for 30 min. The electrical conductivity of 5N copper is higher than that of the raw material as the impurity concentrations decrease. The segrega-tion effect in directional solidification can be remarkable when the equilibrium distribution coefficient (k0) value is less than 0.65 due to the strong affinity of Cu for some metallic and non-metallic impurities.FU Yabo CHEN Jie LIU Ning LU Yiping LI Tingju YIN Guomao 2011Rare Metals2011,30,3:6
5Mucus production stimulated by IFN-AhR signaling triggers hypoxia of COVID-19显示文摘Silent hypoxia has emerged as a unique feature of coronavirus disease 2019(COVID-19).In this study,we show that mucins are accumulated in the bronchoalveolar lavage fluid(BALF)of COVID-19 patients and are upregulated in the lungs of severe respiratory syndrome coronavirus 2(SARS-CoV-2)-infected mice and macaques.We find that induction of either interferon(IFN)-P or IFN-y upon SARS-CoV-2 infection results in activation of aryl hydrocarbon receptor(AhR)signaling through an IDO-Kyn-dependent pathway,leading to transcriptional upregulation of the expression of mucins,both the secreted and membrane-bound,in alveolar epithelial cells.Consequently,accumulated alveolar mucus affects the blood-gas barrier,thus inducing hypoxia and diminishing lung capacity,which can be reversed by blocking AhR activity.These findings potentially explain the silent hypoxia formation in COVID-19 patients,and suggest a possible intervention strategy by targeting the AhR pathway.Yuying Liu Jiadi Lv Jiangning Liu Man Li Jing Xie Qi Lv Wei Deng Nannan Zhou Yabo Zhou Jiangping Song Peng Wang Chuan Qin Wei-Min Tong Bo Huang 2020Cell Research2020,30,12:5
6Generative adversarial networks (GAN) based efficient sampling of chemical composition space for inverse design of inorganic materials显示文摘A major challenge in materials design is how to efficiently search the vast chemical design space to find the materials with desired properties.One effective strategy is to develop sampling algorithms that can exploit both explicit chemical knowledge and implicit composition rules embodied in the large materials database.Here,we propose a generative machine learning model(MatGAN)based on a generative adversarial network(GAN)for efficient generation of new hypothetical inorganic materials.Trained with materials from the ICSD database,our GAN model can generate hypothetical materials not existing in the training dataset,reaching a novelty of 92.53% when generating 2 million samples.The percentage of chemically valid(charge-neutral and electronegativitybalanced)samples out of all generated ones reaches 84.5% when generated by our GAN trained with such samples screened from ICSD,even though no such chemical rules are explicitly enforced in our GAN model,indicating its capability to learn implicit chemical composition rules to form compounds.Our algorithm is expected to be used to greatly expand the range of the design space for inverse design and large-scale computational screening of inorganic materials.Yabo Dan Yong Zhao Xiang Li Shaobo Li Ming Hu Jianjun Hu 2020npj Computational Materials2020,,1:5
7Phase selection during solidification of undercooled Ni_(70.2)Si_(29.8) eutectic alloy显示文摘在冷却下面的高度(大约 392 K ) 在体积被完成最容易溶解的 Ni 70.2 Si 29.8 合金通过与周期的过热相结合的玻璃 fluxing 融化。这被发现亚稳的阶段 Ni 3 Si 2 并且非最后被获得通过慢团结以后什么时候在冷却下面超过 240 K。亚稳的阶段被使用 X 光检查衍射和微分扫描热量测定(DSC ) 的方法证实。基于免费精力最小和短暂成核理论的原则,阶段选择融化在凉下来的最容易溶解的 Ni 70.2 Si 29.8 融化。从在凉下来的 Ni 70.2 Si 29.8 融化被归功于到竞争成核与在冷却下面,即在冷却下面的高度便于亚稳的阶段的优先的成核。Yiping Lu Tingju Li Fu Yabo Sun Jianbo LUO Dawei Gencang Yang Yaohe Zhou 2009Progress in Natural Science:Materials International2009,19,11:4
8Effects of L-3-n-butylphthalide on caspase-3 and nuclear factor kappa-B expression in primary basal forebrain and hippocampal cultures after beta-amyloid peptide 1-42 treatment显示文摘BACKGROUND:L-3-n-butylphthalide(L-NBP) can inhibit phosphorylation of tau protein and reduce the neurotoxicity of beta-amyloid peptide 1-42(Aβ_(1-42)). OBJECTIVE:To observe the neuroprotective effects of L-NBP on caspase-3 and nuclear factor kappa-B(NF-κB) expression in a rat model of Alzheimer's disease. DESIGN,TIME AND SETTING:A cell experiment was performed at the Central Laboratory of Provincial Hospital affiliated to Shandong University between January 2008 and August 2008. MATERIALS:L-NBP(purity>98%) was provided by Shijiazhuang Pharma Group NBP Pharmaceutical Company Limited.Aβ_(1-42),3-[4,5-dimethylthiazolo-2]-2,5 iphenyltetrazolium bromide(MTT),and rabbit anti-Caspase-3 polyclonal antibody were provided by Cell Signaling, USA;goat anti-choactase and rabbit anti-NF-κB antibodies were provided by Santa Cruz,USA. METHODS:Primary cultures were generated from rat basal forebrain and hippocampal neurons at 17 or 19 days of gestation.The cells were assigned into five groups:the control group,the Aβ_(1-42) group(2μmol/ L),the Aβ_(1-42) + 0.1μmol/L L-NBP group,the Aβ_(1-42)+ 1μmol/L L-NBP group,and the Aβ_(1-42)+ 10μmol/L L-NBP group.The neurons were treated with Aβ_(1-42)(2μmol/L) alone or in combination with L-NBP(0.1,1,10μmol/L) for 48 hours.Cells in the control group were incubated in PBS. MAIN OUTCOME MEASURES:Morphologic changes were evaluated using inverted microscopy, viability using the MTT method,and the changes in caspase-3 and NF-κB expression using Western blot. RESULTS:Induction with Aβ_(1-42) for 48 hours caused cell death and soma atrophy,and increased caspase-3 and NF-κB expression(P<0.05).L-NBP blocked these changes in cell morphology, decreased caspase-3 and NF-κB expression(P<0.05),and improved cell viability,especially at the high dose(P<0.05). CONCLUSION:Aβ_(1-42) is toxic to basal forebrain and hippocampal primary neurons;L-NBP protects against this toxicity and inhibits the induction of caspase-3 and NF-κB expression.Ruixia Wang Yong Zhang Liangliang Jiang Guozhao Ma Qingxi Fu Jialong Li Peng Yan Lunqian Shen Yabo Feng Chunxia Li Zaiying Pang Yuanxiao Cui Chunfu Chen Yifeng Du Zhaokong Liu 2009Neural Regeneration Research2009,4,4:3
9The “1-3-7” Approach to Malaria Surveillance and Response--Henan Province, China, 2012−2018显示文摘What is already known about this topic?The“1-3-7”approach to malaria surveillance and response was a key measure for malaria elimination in China and was first introduced into the World Health Organization(WHO)as an international guideline for malaria surveillance and response in 2018.What is added by this report?The“1-3-7”approach was well implemented in Henan Province from 2012−2018.Over this study period,a total of 1,294 malaria cases were detected and reported,and all cases were diagnosed and reported within 1 day with 99.23%(1,284/1,294)of cases were investigated within 3 days.In addition,93.7%(1,212/1,294)of foci were investigated and vector control was implemented within 7 days at all residual non-active foci to prevent further spread.What are the implications for public health practice?The“1-3-7”controlling pattern would be an effective and approachable method for implementation especially in malaria-eliminating countries and regions,but the interval from symptom onset to diagnosis cannot be ignored.Thus,the roles and responsibilities that all actors involved in the health sector must be specified too.Qunqun Zhang Ying Liu Yabo Hu Yuling Zhao Chengyun Yang Dan Qian Ruimin Zhou Suhua Li Zhou Guan Deling Lu Hongwei Zhang Wanshen Guo 2020China CDC weekly2020,2,17:3
10Interpolation Method Research and Precision Analysis of GPS Satellite Position显示文摘According to the precise ephemeris has only provided satellite position that is discrete not any time,so propose that make use of interpolation method to calculate satellite position at any time.The essay take advantage of IGS precise ephemeris data to calculate satellite position at some time by using Lagrange interpolation,Newton interpolation,Hermite interpolation,Cubic spline interpolation method,Chebyshev fitting method respectively,which has a deeply analysis in the precision of five interpolations. The results show that the precision of Cubic spline interpolation method is the worst,the precision of Chebyshev fitting is better than Hermite interpolation method. Lagrange interpolation and Newton interpolation are better than other methods in precision. Newton interpolation method has the advantages of high speed and high precision. Therefore,Newton interpolation method has a certain scientific significance and practical value to get the position of the satellite quickly and accurately.Jianmin WANG Yabo LI Huizhong ZHU Tianming MA 2018Journal of Systems Science and Information2018,9,3:2
11Simple Iterative Methods to Exploit the Signal-Space Diversity显示文摘LI Yabo XIA Xianggen WANG Genyuan 2005IEEE Trans Commun2005,53,1:1
12Preparation and Measurement of Controlled-Release SO2Fungicide Active Packaging at Room Temperature显示文摘Xu Wencai Li Dongli Fu Yabo 2013Packag Technol Sci2013,26,1:1
13Escaping alveolar macrophage endosomal retention explains massive expansion of SARS-CoV-2 delta variant显示文摘Dear Editor,Genetic variant Delta(B.1.617.2)of severe acute respiratory syndrome coronavirus 2(SARS-CoV-2),which possesses a remarkable ability to transmit and spread,is currently becoming predominant worldwide.Despite its great harm to human beings,how the Delta variant with T478K,P681R and L452R mutations achieves its ultrafast spread remains elusive.Entry of SARS-CoV-2 into host cells is mediated by a rapid enzymatic hydrolysis.Zhenfeng Wang Yabo Zhou Linlin Bao Dan Li Jiadi Lv Dianheng Wang Shunshun Li Wei-Min Tong Jiangning Liu Chuan Qin Bo Huang 2022Signal Transduction and Targeted Therapy2022,7,1:1
14ACE2 expression is regulated by AhR in SARS-CoV-2-infected macaques显示文摘During the current outbreak of coronavirus disease 2019(COVID-19)caused by severe acute respiratory syndrome coronavirus 2(SARS-CoV-2),more than 115 million people have been infected,and 2.5 million have died.1,2 Despite such great harm to human health,the pathogenesis of COVID-19 remains unclear.As the first step in the pathogenetic process,viral entry is mediated by the binding of the SARS-CoV-2 surface spike(S)protein to angiotensin-converting enzyme 2(ACE2)on host cells,such as lung epithelial cells.As an alternative to S protein-blocking strategies,manipulating host cell ACE2 expression may exert an inhibitory effect on SARS-CoV-2 infection.However,the molecular mechanism regulating ACE2 expression remains unclear.Jiadi Lv Pin Yu Zhenfeng Wang Wei Deng Linlin Bao Jiangning Liu Fengli Li Qiangqiang Zhu Nannan Zhou Qi Lv Guanpeng Wang Shunyi Wang Yabo Zhou Jiangping Song Wei-Min Tong Yuying Liu Chuan Qin Bo Huang 2021Cellular & Molecular Immunology2021,18,5:1
15Crystal orientation and corrosion resistance of CuNi10Fe1Mn alloy billet under rotating electromagnetic field显示文摘CuNi10Fe1Mn alloy billet under rotating electromagnetic field (REF) was characterized in this work. The change of the crystal orientation was first explored by X-ray diffraction (XRD) and scanning election microscope (SEM); the corrosion resistance was done by three electrodes system, and the natural sea water was used as corrosion medium. The results demonstrate that the strongest crystal orientation is transformed from crystal plane (200) to (111); moreover, the crystal plane (111) whose intensity is the strongest on the cross section and vertical section with REF causes the tubes be rolled easily, and the corrosion resistance of the billet is increasing with REF. As a result, properties of CuNi10Fe1Mn alloy tubes can be improved by REF.Fu Yabo Cui Jing Li Tingju 2012Rare Metals2012,31,6:1
16A family of distributed space-time trellis codes with asynchronous cooper- ative diversity 显示文摘LI Yabo XIA Xianggen 2007IEEE Transactions on Communi- cations2007,55,:1
17Efficient enantioselective synthesis of CF_(2)Hcontaining dispiro[benzo[b]thiophene-oxindolepyrrolidine]s via organocatalytic cycloaddition显示文摘An efficient and practical organocatalytic asymmetric[3+2]cycloaddition of difluoromethylated ketoimines and methyleneindolinones catalyzed by a quinine-derived squaramide has been disclosed.Under mild conditions,a broad range of CF_(2)H-containing dispiro[benzo[b]thiophene-oxindole-pyrrolidine]s bearing four adjacent chiral centers including two vicinal spiro quaternary stereocenters were obtained in high yields(up to 99%yield)with excellent diastereoselectivities(>20:1 dr,in all cases)and enantioselectivities(up to 99%ee).Yabo Deng Yongzhen Li Yalan Wang Shuo Sun Sichao Ma Pengfei Jia Wenguang Li Kairong Wang Wenjin Yan 2022Organic Chemistry Frontiers2022,9,1:1
18Distributed Space-Frequency Coding for Cooperative Diversity in Broadband Wireless Ad Hoe Networks 显示文摘Zhang Wei Li Yabo 2008IEEE Transactions on Wireless Communications2008,7,3:1
19SARS-CoV-2 treatment effects induced by ACE2-expressing microparticles are explained by the oxidized cholesterolincreased endosomal pH of alveolar macrophages显示文摘Exploring the cross-talk between the immune system and advanced biomaterials to treat SARS-CoV-2 infection is a promising strategy.Here,we show that ACE2-overexpressing A549 cell-derived microparticles(AO-MPs)are a potential therapeutic agent against SARS-CoV-2 infection.Intranasally administered AO-MPs dexterously navigate the anatomical and biological features of the lungs to enter the alveoli and are taken up by alveolar macrophages(AMs).Then,AO-MPs increase the endosomal pH but decrease the lysosomal pH in AMs,thus escorting bound SARS-CoV-2 from phago-endosomes to lysosomes for degradation.This pH regulation is attributable to oxidized cholesterol,which is enriched in AO-MPs and translocated to endosomal membranes,thus interfering with proton pumps and impairing endosomal acidification.In addition to promoting viral degradation,AO-MPs also inhibit the proinflammatory phenotype of AMs,leading to increased treatment efficacy in a SARS-CoV-2-infected mouse model without side effects.These findings highlight the potential use of AO-MPs to treat SARS-CoV-2-infected patients and showcase the feasibility of MP therapies for combatting emerging respiratory viruses in the future.Zhenfeng Wang Jiadi Lv Pin Yu Yajin Qu Yabo Zhou Li Zhou Qiangqiang Zhu Shunshun Li Jiangping Song Wei Deng Ran Gao Yuying Liu Jiangning Liu Wei-Min Tong Chuan Qin Bo Huang 2022Cellular & Molecular Immunology2022,19,2:1
20Simple iterative methods to exploit the signal space diversity 显示文摘Li Yabo Xia Xianggen Wang Genyuan 2005IEEE Trans Commun2005,53,1:1
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