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4086篇 您的检索式:作者名="Qi X"
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1Projection micro stereolithography based 3D printing and its applications显示文摘Projection micro stereolithography(PμSL)is a high-resolution(up to 0.6μm)3D printing technology based on area projection triggered photopolymerization,and capable of fabricating complex 3D architectures covering multiple scales and with multiple materials.This paper reviews the recent development of the PμSL based 3D printing technologies,together with the related applications.It introduces the working principle,the commercialized products,and the recent multiscale,multimaterial printing capability of PμSL as well as some functional photopolymers that are suitable to PμSL.This review paper also summarizes a few typical applications of PμSL including mechanical metamaterials,optical components,4D printing,bioinspired materials and biomedical applications,and offers perspectives on the directions of the further development of PμSL based 3D printing technology.Qi Ge Zhiqin Li Zhaolong Wang Kavin Kowsari Wang Zhang Xiangnan He Jianlin Zhou Nicholas X Fang 2020International Journal of Extreme Manufacturing2020,2,2:11
2Src homology 2 domain-containing inositol-5-phosphatase 1 (SHIP1) negatively regulates TLR4-mediated LPS response primarily through a phosphatase activity- and PI-3K-independent mechanism显示文摘An H Xu H Zhang M Zhou J Feng T Qian C Qi R Cao X 2006第二军医大学学报2006,27,1:6
3Discrete twinning dynamics and size-dependent dislocation-to twin transition in body-centred cubic tungsten显示文摘Body-centred cubic(BCC) metals are known to have unstable intrinsic stacking faults and high resistance to deformation twinning, which can strongly influence their twinning behaviour. Though twinning mechanisms of BCC metals have been investigated for more than 60 years, the atomistic level dynamics of twinning remains under debate, especially regarding its impact on competition between twinning and slip. Here, we investigate the atomistic level dynamics of twinning in BCC tungsten(W) nanowires using in situ nanomechanical testing. Quantitative experimental studies directly visualize that deformation twins in W nanowires have a minimum size of six-layers and grow in increments of approximately three-layers at a time, in contrast to the layer-by-layer growth of deformation twins in face-centred cubic metals. These unique twinning dynamics induces a strong competition with ordinary dislocation slip,as exhibited by a size-dependent dislocation-to-twin transition in W nanowires, with a transition size of ~40 nm. Our work provides physical insight into the dynamics of twinning at the atomic level, as well as a size-dependent dislocation-twinning competition, which have important implications for the plastic deformation in a broad class of BCC metals and alloys.Jiangwei Wang Anik H.M.Faisal Xiyao Li Youran Hong Qi Zhu Hongbin Bei Ze Zhang Scott X Mao Christopher R.Weinberger 2022Journal of Materials Science & Technology2022,,11:2
4血清肝纤维化标志物评估肝硬化预后:一项前瞻性观察性研究显示文摘血清肝纤维化标志物评估肝硬化预后的价值尚不清楚。本项前瞻性观察性研究旨在评估Ⅲ型前胶原氨基端肽(PⅢNP)、Ⅳ型胶原(CⅣ)、层黏连蛋白(LN)以及透明质酸(HA)评估肝硬化预后的价值。Qi等前瞻性招募所有入院并检测PⅢNP、CⅣ、LN以及HA水平的肝硬化患者,共108例患者纳入本项研究。相关性分析提示,CⅣ(r=0.658,P〈0.001;r=0.368,P〈0.001)、LN(r=0.450,P〈0.001;r=0.343,P〈0.001)、HA(r=0.325,P:0.001;,=0.282,P=0.004)与Child-Pugh及MELD评分显著相关,但PⅢNP(r=0.081,P=0.414;r=0.090,P=0.363)与Child-Pugh或MELD评分并无显著相关。Qi X 祁兴顺 郭晓钟 2016临床肝胆病杂志2016,32,9:2
5抗生素使用的时间长短和使用时的生命阶段与全因/特定原因死亡风险的关系:一项前瞻性队列研究显示文摘过度使用抗生素一直是一个重要的临床问题,抗生素使用与肠道微生物菌群的改变有关,肠道菌群的改变与各种慢性疾病如心血管病和癌症的风险有关。此外,抗生素使用的时间可能是过早死亡的一个危险因素。研究者调查了成年期间使用抗生素的生命阶段和使用持续时间与全因和特定原因死亡风险的关系。该项前瞻性队列研究包括来自护士健康研究、均未患有心血管病或癌症的37516名年龄≥60岁的女性,收集其中年(40~59岁)和老年(≥60岁)使用抗生素的时间(无,<15d,15d至<2个月,或≥2个月)。研究者根据抗生素的使用时间估计10年内全因死亡率和心血管病或癌症的死亡风险比(HR)。在355918人年的随访中,研究者记录了所有原因导致的4536例死亡(包括728例心血管病死亡和1206例癌症死亡)刘青(译) 叶鹏(摘 审校) Heianza Y Ma W Li X Cao Y Chan A Rimm EB Hu FB Rexrode K Manson JE Qi L 2020中华高血压杂志2020,28,2:2
6Stromal cell derived factor-1 acutely promotes neural progenitor cell proliferation in vitro by a mechanism involving the ERK1/2 and PI-3K signal pathways显示文摘Gong X He X Qi L 2006Cell Biol Int2006,30,5:1
7Supply chain coordination with demand disruptions 显示文摘Qi x 2004Omega2004,32,4:1
8Genetic characterization of novel reassortant H1N2 influenza A viruses isolated from pigs in southeastern China显示文摘QI X LU C P 2006Arch Virol2006,151,11:1
9One-step preparation of antibody and otigonucleotide dual-labeled gold nanoparticle bio-probes and their properties显示文摘Kong X Qiao F Qi H 2008Biotechnol Lett2008,30,:1
10Elevated retinol-binding protein 4 levels are associated with metabolic syndrome in Chinese people显示文摘Qi Q Yu Z Ye x 2007Clin Endocrinol Metab2007,92,12:1
11Preparation and electromagnetic properties of low-temperature sintered ferroelectric-ferrite composite ceramics 显示文摘YUE Z X CHEN S F QI X W 2004J Alloys Compd2004,375,:1
12Preparative isolation and purification of ginsenosides Rf, Re, Rd and Rbl from the roots of Panax ginseng with a salt/containing solvent system and flow step-gradient by high performance counter-current chromatographycoupled with an evaporative light scattering detector 显示文摘Qi X C Ignatova S Luo G A 2010J Chro- matogrA2010,1217,15:1
13Capillary zone electrophoretic chiral discrimination using 6-O-(2-hy- droxy-3-trimethylammoniopropyl)--eyclodextrin as achiral selector显示文摘LIN X L ZHAO M G QI X Y 2006Electrophoresis2006,27,4:1
14Evaluation of liposomal erythropoietin prepared with reverse - phase evaporation vesicle method by subcutaneous administration in rats显示文摘Qi X R Maitani Y Shimoda N 1995Chem Pharm Bull1995,43,2:1
15A novel drought-inducible gene,A TAF1,encodes a NAC family protein that negatively regulates the expression of stress-responsive genes in Arabidopsis显示文摘LU P L CH EN N Z AN R SU Z QI B S REN F CHEN J WANG X C 2007Plant Molecular Biology2007,63,2:1
16A new and simple method for concentration of enteric viruses from water显示文摘LI J W WANG X W Qi Yi Rui 1998Journal of Virological Methods1998,,74:1
17Synthesis and photoluminescence ofwater-soluble Mn:ZnS/ZnS core/shell quantum dots using nucleation-doping strategy 显示文摘Qi X Chong X 2008Opt Mater2008,31,:1
18Wireless tracing and locating system for in-pipe robot 显示文摘QI H M YE J R ZHANG X H 2010Sensors and Actuators A2010,159,:1
19Thermodynamic Analysis of a Novel Absorption Power/Cooling Combined Cycle 显示文摘ZHENG D X CHEN B QI Y 2006Applied Energy2006,83,:1
20Due-date assignment for scheduling on a single machine with compressible process- ing times显示文摘Cheng T C E Ouz C Qi X D 1996International Journal of Production Econom ics1996,43,:1
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