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19篇 您的检索式:作者名="Lixing Guo"
    题名 作者 年代 出处 被引量
1Discovery of Cu-Ni-Zn-Sn-Fe intermetallic compounds and S-bearing alloys in the Zhaishang gold deposit, southern Gansu Province and its geological significance显示文摘Examination of ores by optical microscope and EPMA from the Zhaishang gold deposit, southern Gansu Province, has revealed an abundance of rare minerals. These include native metals, Cu-Ni-Zn-Sn-Fe polymetallic compounds and S-bearing alloys of Ni, Fe, Zn, Cu and Sn, occurring as native nickel, Zn-Cu alloy, Ni-Zn-Cu alloy, Sn-Zn-Ni-Cu alloy, Zn-Cu-Ni alloy, Zn-Fe-Cu-Sn-Ni alloy, Fe-Ni-S alloy, Sn-Fe-Ni-S alloy, Fe-Zn-Cu-Ni-S alloy, Zn-Ni-Cu-Fe-S alloy and others. Compared with the Zn-Cu alloy minerals discovered previously, these Zn-Cu minerals fall in the α or α+β portion in Zn-Cu alloy phase diagram, and the α portion has higher Cu content. Cu-Ni-Zn-Sn-Fe intermetallic compounds and S-bearing alloy minerals have not been previously reported in the literature. These rare alloys formed in a strongly reducing environment with absent oxygen and low sulfur activities.LIU JiaJun MAO GuangJian MA XingHua LI LiXing GUO YuQian LIU GuangZhi 2008Science China Earth Sciences2008,51,6:3
2Pairwise distance-based heteroscedasticity test for regressions显示文摘In this study,we propose nonparametric testing for heteroscedasticity in nonlinear regression models based on pairwise distances between points in a sample.The test statistic can be formulated such that Ustatistic theory can be applied to it.Although the limiting null distribution of the statistic is complicated,we can derive a computationally feasible bootstrap approximation for such a distribution;the validity of the introduced bootstrap algorithm is proven.The test can detect any local alternatives that are different from the null at a nearly optimal rate in hypothesis testing.The convergence rate of this test statistic does not depend on the dimension of the covariates,which significantly alleviates the impact of dimensionality.We provide three simulation studies and a real-data example to evaluate the performance of the test and demonstrate its applications.Xu Guo Xuejun Jiang Shumei Zhang Lixing Zhu 2020Science China Mathematics2020,63,12:2
3Comparative Expression and Phylogenetic Analysis of Maize Cytokinin Dehydrogenase/Oxidase (CKX) Gene Family显示文摘Riliang Gu Junjie Fu Song Guo Fengying Duan Zhangkui Wang Guohua Mi Lixing Yuan 2010Journal of Plant Growth Regulation2010,,4:2
4Optical Perfect Shuffle Interconnection Using Computer-Generated Blazed Grating Array显示文摘Ping Xu Xiang Zhou Xiaochun Zhang Yongkang Guo Lurong Guo Hong Tang Shida Wu Lixing Yang Ying Chen 1995Optical Review1995,,5:1
5Regulation of endothelial ni- tric oxide synthase and asymmetric dimethylarginine by matrine attenuates isoproterenol-induced acute myocardial injury in rats 显示文摘LiX Wang X Guo Y 2012J Pharm Pharmacol2012,64,:1
6Red and processed meat intake and risk of breast cancer:a meta-analysis of prospective studies显示文摘GUO Jingyu WEI Wei ZHAN Lixing 2015Breast Cancer Res Treat2015,151,:1
7Preparation and Characterization of Narrowly Distributed Nanogels with Temperature-Responsive Core and pH-Responsive Shell 显示文摘LIX ZOU J GUO Y L 2004Maeromoleeules2004,37,10:1
8Microstructural evolution of a TC11 titanium alloy during linear friction welding显示文摘Lang B Zhang TC LiX H Guo D L 2010Journal of Materials Science2010,45,:1
9Effects of soil fertility on peanut quality显示文摘LIX H GUO H H YANG L P 0,,03:1
10Abnormal miR-214/A20 expression might play a role in T cell activation in patients with aplastic anemia显示文摘Aberrant T cell activation is a major cause of aplastic anemia(AA)pathogenesis.Recent studies have shown that miRNAs regulate T cell activation and are involved in AA.A previous study found that miR-214 was significantly up-regulated upon T cell activation in a CD28-dependent fashion by targeting PTEN.However,the expression characteristics of miR-214 and its target genes in AA have not been defined.In this study,target genes for miR-214 were predicted and confirmed by bioinformatics and luciferase reporter assays.The expression levels of miR-214 and target genes were detected in 36 healthy individuals and 35 patients with AA in peripheral blood mononuclear cells by real-time quantitative reverse transcriptase-polymerase chain reaction.Bioinformatics and luciferase reporter assays identified that miR-214 could bind to the A2030 untranslated regions.Significantly increased miR-214 and the decreased A20 expression level were detected in the AA patients compared with the healthy group.In addition,significantly increased miR-214 was found in non-severe aplastic anemia compared with severe aplastic anemia patients.These results suggested that the A20 gene was a potential target of miR-214,and elevated miR-214 might medicate T cell activation at least in part by regulating A20 expression in AA.We firstly confirmed that miR-214 regulated A20 expression,and aberrant miR-214/A20 expression might contribute to immunopathology in AA.The miR-214 expression might be used as a potential biomarker that assisted in diagnosing AA severity.Zhi Yu Cunte Chen Yankai Xiao Xiaohui Chen Lixing Guo Guangxiao Tan Guixuan Huang Weifeng Luo Ming Zhou Yumiao Li Chen Lin Qi Shen Yuping Zhang Bo Li 2020Blood Science2020,2,3:1
11Enhancing the cycling stability of Na-ion batteries by bonding MoS2 on assembled carbon-based materials显示文摘Room temperature Na-ion batteries(SIBs) show great potential for use as renewable energy storage systems.However, the large-scale application of SIBs has been hindered by the lack of an ideal SIBs anode material. We synthesized MoS2 on carbonized graphene-chitosan(G-C) using the hydrothermal method. The strong interaction between the MoS2 and the G-C greatly improved the electron transport rate and maintained the structural stability of the electrode, which lead to both an excellent rate capability and long cycle stability. The G-C monolith was proven to enhance the electrical conductivity of the composites and served as a matrix for uniformly dispersing active MoS2 nanosheets(NSs), as well as being a buffer material to adapt to changes in volume during the cycle.Serving as an anode material for SIBs, the MoS2-G-C electrode showed good cycling stability(527.3mAh g-1 at100 m A g-1 after 200 cycles), excellent rate capability, and a long cycle life(439.1 m Ah g-1 at 1 A g-1 after 200 cycles).Pin Song Jun Di Lixing Kang Manzhang Xu Bijun Tang Jun Xiong Jiewu Cui Qingsheng Zeng Jiadong Zhou Yongmin He Qundong Fu Juan Peng Shasha Guo Bo Lin Jingyu Zhang Peng Meng Zheng Liu 2019Nano Materials Science2019,1,4:0
12Hertz-rate metropolitan quantum teleportation显示文摘Quantum teleportation can transfer an unknown quantum state between distant quantum nodes,which holds great promise in enabling large-scale quantum networks.To advance the full potential of quantum teleportation,quantum states must be faithfully transferred at a high rate over long distance.Despite recent impressive advances,a high-rate quantum teleportation system across metropolitan fiber networks is extremely desired.Here,we demonstrate a quantum teleportation system which transfers quantum states carried by independent photons at a rate of 7.1±0.4 Hz over 64-km-long fiber channel.An average single-photon fidelity of≥90.6±2.6%is achieved,which exceeds the maximum fidelity of 2/3 in classical regime.Our result marks an important milestone towards quantum networks and opens the door to exploring quantum entanglement based informatic applications for the future quantum internet.Si Shen Chenzhi Yuan Zichang Zhang Hao Yu Ruiming Zhang Chuanrong Yang Hao Li Zhen Wang You Wang Guangwei Deng Haizhi Song Lixing You Yunru Fan Guangcan Guo Qiang Zhou 2023Light(Science & Applications)2023,12,6:0
13Stable correlation and robust feature screening显示文摘In this paper,we propose a new correlation,called stable correlation,to measure the dependence between two random vectors.The new correlation is well defined without the moment condition and is zero if and only if the two random vectors are independent.We also study its other theoretical properties.Based on the new correlation,we further propose a robust model-free feature screening procedure for ultrahigh dimensional data and establish its sure screening property and rank consistency property without imposing the subexponential or sub-Gaussian tail condition,which is commonly required in the literature of feature screening.We also examine the finite sample performance of the proposed robust feature screening procedure via Monte Carlo simulation studies and illustrate the proposed procedure by a real data example.Xu Guo Runze Li Wanjun Liu Lixing Zhu 2022Science China Mathematics2022,65,1:0
14Preparation of Photocatalyst-supported Polyacrylonitrile Micro/Nano Composite Fiber Material and Its Photocatalytic Activity显示文摘A composite photocatalyst,with branch-like BiOI/Bi_(2)WO_(6) heterojunction deposited on the polyacrylonitrile micro/nano composite fiber(PAN MNCF),was prepared via two step hydrothermal method.The products are characterized by X-ray diffraction(XRD),X-ray photoelectron spectroscopy(XPS),photoluminescence(PL)spectra,UV-Vis diffuse reflection spectroscopy(UV-Vis DRS)and time-resolved fluorescence spectra.The PAN/BiOI/Bi_(2)WO_(6) micro/nano composite fiber(PAN/BiOI/Bi_(2)WO_(6) MNCF)showed better visible-light photocatalytic performance than PAN MNCF or BiOI/Bi_(2)WO_(6) powder,probably ascribed to the collective effect between PAN MNCF and BiOI/Bi_(2)WO_(6) heterojunction.Significantly,the PAN/BiOI/Bi_(2)WO_(6) MNCF could be easily recycled through filtration method,thus avoiding the secondary pollution.GUO Xiaofei QIN Chuanxiang HUANG Sihui ZHU Mingyue WANG Jian-jun SUN Jun DAI Lixing 2021Chemical Research in Chinese Universities2021,37,3:0
15Controlled growth of ultrathin ferromagneticβ-MnSe semiconductor显示文摘Two-dimensional(2D)magnetic crystals with intrinsic ferromagnetism are highly desirable for novel spin-electronic devices.However,the controllable synthesis of 2D magnets,especially the direct growth of 2D magnets on substrate surfaces,is still a challenge.Here,we demonstrate the synthesis of ultrathin zinc-blende phase manganese selenide(β-MnSe)nanosheets using the chemical vapor deposition(CVD)technique.The 2Dβ-MnSe crystals exhibit distinct ferromagnetic properties with a Curie temperature of 42.3 K.Density functional theory(DFT)calculations suggest that the ferromagnetic order inβ-MnSe originates from the exchange coupling between the unsaturated Se and Mn atoms.This study presents significant progress in the CVD growth of ultrathin 2D magnetic materials by thinning bulk magnets,and it will pave the way for the building of energy-efficient spintronic devices in the future.Jingyun Zou Yumeng Yang Dianyi Hu Lixing Kang Chao Zhu Dan Tian Xiaodong Lv Govindan Kutty Yuxi Guo Manzhang Xu Fengyu Li Guo Hong Zheng Liu 2022SmartMat2022,3,3:0
16Effects of the pestle needle therapy,a type of acupoint stimulation,on post-hemorrhoidectomy pain:A randomized controlled trial显示文摘Background:Hemorrhoids are one of the most common conditions that lead to surgery,and until now surgical hemorrhoidectomy has been the major effective treatment.Post-operative pain from hemorrhoidectomy has been experienced by thousands of patients and remains a major inconvenience of the operation.Objective:This study evaluates the clinical efficacy of the pestle needle therapy,an acupoint stimulation method,for relief of post-hemorrhoidectomy pain.Design,setting,participants and interventions:This was a single-center,patient-assessor-blinded and randomized controlled trial with 154 patients receiving Milligan hemorrhoidectomy surgery.Eligible patients were randomly assigned to either a treatment group or a control group at a ratio of 1:1.The treatment group received the pestle needle therapy,with manual stimulation at Yaoshu(DU2),Mingmen(DU4),Changqiang(DU1),Chengshan(BL57),Erbai(EX-UE2)and the perianal points(1,3,5,7,9,and 11 o’clock around the lesion);while the control group received a sham treatment with very light pressure.Three sessions of treatment were performed at 30 min,4 h and 12 h after the surgery,and each lasted for 15 min.Main outcome measures:The primary outcome was post-operative pain measured with the visual analogue scale(VAS)at 12 h after surgery.The secondary outcomes included the VAS scores measured at0.5,2,4,6,8,24 and 48 h after surgery,the analgesic dose,the time and the VAS score of the patients’first defecation after surgery,as well as the Hamilton Rating Scale for Anxiety(HAMA)evaluated before discharge.Results:The mean pain score of the treatment group was significantly lower than that of the control group(3.10±1.27 vs 4.82±1.29;P<0.001)at 12 h after surgery.Compared with the control group,patients in the treatment group needed a smaller dose of analgesic within the first 24 hours after surgery(P=0.002);and their HAMA scores before discharge were lower(4.07±2.40 vs 5.10±2.45,P=0.009).Compared to the treatment group,patients in the control group had a greater time to the first defecation after surgery([52.34±15.72]h vs[27.08±13.68]h;P<0.001),but there was no difference in their VAS scores at the first defecation(P=0.092).Conclusion:The pestle needle therapy was effective for relieving pain,reducing anxiety and improving bowel function after hemorrhoidectomy,and it is worthy of clinical application.Xian Wang Xuan Yin Xiu-tian Guo Yan Wang Wen-qi Jin Ai-jun Mao Lixing Lao Zhang-jin Zhang Jie Zhang Shi-fen Xu 2020Journal of Integrative Medicine2020,18,6:0
17Future urban transport management显示文摘The incorporation of disruptive innovations into the transportation industry will inevitably cause major upheavals in the transportation sector.However,existing research lacks systematic theories and methodologies to represent the underlying characteristics of future urban transport systems.Furthermore,emerging modes in urban mobility have not been sufficiently studied.The National Natural Science Foundation of China(NSFC)officially approved the Basic Science Center project titled“Future Urban Transport Management”in 2022.The project members include leading scientists and engineers from Beijing Jiaotong University,Beihang University,and Beijing Transport Institute.Based on a wide range of previous projects by the consortium on urban mobility and sustainable cities,this project will encompass transdisciplinary and interdisciplinary research to explore critical issues affecting future urban traffic management.It aims to develop fundamental theories and methods based on social and technological developments in the near future and explores innovative solutions to implement alongside these emerging developments in urban mobility.Ziyou GAO Hai-jun HUANG Jifu GUO Lixing YANG Jianjun WU 2023Frontiers of Engineering Management2023,10,3:0
18Spectrally multiplexed indistinguishable single-photon generation at telecom-band显示文摘Heralded single-photon source(HSPS)intrinsically suffers from the trade-off between the heralded single-photon rate and the single-photon purity.To break through this trade-off,one can apply multiplexing technology in different degrees of freedom that significantly improves the performance of the HSPS.Here,we propose a 1.5μm chip-scale HSPS on lithium niobate on insulator by employing spectral multiplexing and active feedforward spectral manipulating,and we demonstrate a proof-of-principle experiment with discrete fiber-based components.With continuous-wave laser pumping and three spectral modes multiplexed,our experimental results show that the spectral multiplexing improves the heralded single-photon rate by near threefold while keeping the g^((2))(0)as low as 0.0006±0.0001 at a measured single-photon rate of 3.1 kHz.By measuring the joint spectral intensity,we show that the spectral multiplexing and feed-forward control effectively erase the frequency correlation of photon pairs.Moreover,we implement the Hong-Ou-Mandel interference between the spectrally multiplexed single photons and photons from an independent weak coherence source,which indicates that the multiplexed single photons are highly indistinguishable after the spectral manipulation.Our results pave a way for on-chip scalable and high-performance HSPS with spectral multiplexing toward deterministic single-photon emission.HAO YU CHENZHI YUAN RUIMING ZHANG ZICHANG ZHANG HAO LI YOU WANG GUANGWEI DENG LIXING YOU HAIZHI SONG ZHIMING WANG GUANG-CAN GUO QIANG ZHOU 2022Photonics Research2022,10,6:0
19Analysis of operation-related complications of totally laparoscopic aortoiliac surgery显示文摘Qi Lixing Gu Yongquan Guo Lianrui Li Xuefeng Wu Yingfeng Cui Shijun Tong Zhu Wu Xin Guo Jianming Zhang Jian Wang Zhonggao 2014Chinese Medical Journal2014,,7:0
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