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26篇 您的检索式:作者名="Xiaolei JI"
    题名 作者 年代 出处 被引量
1An automated pulmonary parenchyma segmentation method based on an improved region growing algorithm in PET-CT imaging显示文摘Juanjuan ZHAO Guohua JI Xiaohong HAN Yan QIANG Xiaolei LIAO 2016Frontiers of Computer Science2016,10,1:6
2CEACAM6 promotes tumor migration, invasion, and metastasis in gastric cancer显示文摘(CEACAM6 ) Carcinoembryonic 抗原相关的房间粘附分子 6 证明在许多 humancancers 的增加的表示,和它的在表示上与提高的移植被联系,侵略,并且在 vivo 转移。这里,我们报导 CEACAM6 在房间衬里的胃的癌症(GC ) 和肿瘤纸巾是起来调整的。在 MKN-45 和 SGC-7901 GC 房间的 Over-expressionof CEACAM6 在 athymic 老鼠在 vitro 和转移支持了移植和侵略,而 MKN-28 和 SNU-16 GC 房间的移植和侵略被 knockdownof CEACAM6 压制。当 CEACAM6 是 over-expressedin SGC-7901 房间时,我们也观察到类固醇受体激活剂(C-SRC ) phosphorylation 被增加。一起拿,这些结果建议 CEACAM6 在 GC 作为 oncoprotein 工作并且可以是 importantmetastatic biomarker 和治疗学的目标。Yunqiang Zhang Mingde Zang Jianfang Li Jun Ji Jianian Zhang Xiaolei Liu Ying Qu Liping Su Chen Li Yinyan Yu Zhenggang Zhu Bingya Liu Min yan 2014Acta Biochimica et Biophysica Sinica2014,46,4:5
3Numerical simulation on the seismic absorption effect of the cushion in rigid-pile composite foundation显示文摘In order to quantitatively study the seismic absorption effect of the cushion on a superstructure, a numerical simulation and parametric study are carried out on the overall FEA model of a rigid-pile composite foundation in ABAQUS. A simulation of a shaking table test on a rigid mass block is first completed with ABAQUS and EERA, and the effectiveness of the Drucker-Prager constitutive model and the finite-infinite element coupling method is proved. Dynamic time-history analysis of the overall model under frequent and rare earthquakes is carried out using seismic waves from the El Centro, Kobe, and Bonds earthquakes. The different responses of rigid-pile composite foundations and pile-raft foundations are discussed. Furthermore, the influence of thickness and modulus of cushion, and ground acceleration on the seismic absorption effect of the cushion are analyzed. The results show that: 1) the seismic absorption effect of a cushion is good under rare earthquakes, with an absorption ratio of about 0.85; and 2) the seismic absorption effect is strongly affected by cushion thickness and ground acceleration.Han Xiaolei Li Yaokun Ji Jing Ying Junhao Li Weichen Dai Baicheng 2016Earthquake Engineering and Engineering Vibration2016,15,2:5
4Concept of the solar ring mission:An overview显示文摘The concept of the Solar Ring mission was gradually formed from L5/L4 mission concept, and the proposal of its pre-phase study was funded by the National Natural Science Foundation of China in November 2018 and then by the Strategic Priority Program of Chinese Academy of Sciences in space sciences in May 2019. Solar Ring mission will be the first attempt to routinely monitor and study the Sun and inner heliosphere from a full 360-degree perspective in the ecliptic plane. The current preliminary design of the Solar Ring mission is to deploy six spacecraft, grouped in three pairs, on a sub-AU orbit around the Sun. The two spacecraft in each group are separated by about 30?and every two groups by about 120?. This configuration with necessary science payloads will allow us to establish three unprecedented capabilities:(1) determine the photospheric vector magnetic field with unambiguity,(2) provide 360-degree maps of the Sun and the inner heliosphere routinely, and(3) resolve the solar wind structures at multiple scales and multiple longitudes. With these capabilities, the Solar Ring mission aims to address the origin of solar cycle, the origin of solar eruptions, the origin of solar wind structures and the origin of severe space weather events. The successful accomplishment of the mission will advance our understanding of the star and the space environment that hold our life and enhance our capability of expanding the next new territory of human.WANG YuMing JI HaiSheng WANG YaMin XIA LiDong SHEN ChengLong GUO JingNan ZHANG QuanHao HUANG ZhengHua LIU Kai LI XiaoLei LIU Rui WANG JingXiu WANG Shui 2020Science China(Technological Sciences)2020,63,9:4
5The Full-Duplex Artificial Noise Scheme for Security of a Cellular System显示文摘This paper focuses on the problem of secure transmission in a cellular system. A full-duplex base station using artificial noise is adopted to improve both the uplink and downlink secrecy rate via pairing terminals which reverses the downlink and uplink of each other. We give the designs of artificial noise and the user's desired signal, and derive the pairing prin-ciple between terminals. Moreover, the influence of self-interference cancellation on secrecy rate is ex-plored. Simulation results show that the secrecy rate can get much better performance by adopting full-duplex artificial noise scheme and proposed pair-ing method. The downlink secrecy rate decreases with the distance between terminals. Besides the uplink secrecy rate is sensitive to the ability of self-interference cancellation.JI Xinsheng KANG Xiaolei HUANG Kaizhi LI Na YI Ming 2015China Communications2015,12,S1:4
6In situ synthesis and phase analysis of low density O'-sialon-based multiphase ceramics显示文摘In situ formed low density O'-sialon-based multiphase ceramics were prepared by liquid-phase sintering method at 1400°C with Si3N4, SiO2 and Al2O3 as raw materials.Crystalline phases were identified by X-ray diffraction(XRD).The quantitative phase analysis was finished by matrix-flushing method and the substitution parameter x value of O'-sialon was estimated.The effects of sintering additives on the phase composition of the material were studied.The results show that, when using Y2O3 alone, Al6Si2O13 phase can be formed in the material, but when using Y2O3 and MgO, MgAl2O4 phase can be preferentially formed and the Al6Si2O13 is not observed.The mechanical properties of the material were measured and the relationships between microstructure and mechanical properties were discussed.The sample with Y2O3 and MgO sintering additives, using fused quartz alone as SiO2 source, displays a combination of high bending strength(163 MPa) and good fracture toughness(3.11 MPa·m1/2).Bending strength and fracture toughness of the samples increase with the increase of the content and aspect ratio of elongated grains and decrease with the increase of the porosity.XU Xiongwen, LIANG Hui, LI Xiaolei, JI Huiming, LU Huixiang, and WAN Yizao Key Laboratory for Advanced Ceramics and Machining Technology(Ministry of Education), Tianjin University, Tianjin 300072, China 2010Rare Metals2010,29,2:3
7Comparative Study on the Efficacies of 11 Chemical Agents against Taro Soft Rot Caused by Pectobacterium aroidearum显示文摘[Objective]The paper was to screen the effective agents for effectively controlling the occurrence and prevalence of taro soft rot.[Method]The fungicidal effects of 11 fungicides on taro soft rot were determined by inhibition zone method.[Result]0.3%Tetramycin,25%bromothalonil,3%Zhongshengmycin and 30%zinc thiazole had better antifungal effect on Pectobacterium aroidearum at recommended concentration.The indoor toxicity of four fungicides showed that the EC50 of 0.3%tetramycin AS was the smallest of 0.6μg/mL,indicating that tetramycin had the largest toxicity and the best inhibitory effect against P.aroidearum;followed by 25%bromothalonil EC and 3%Zhongshengmycin WP,with the EC_(50) of 2.57 and 97.72μg/mL,respectively;the inhibitory effect of 30%zinc thiazole SC against P.aroidearum was the poorest.[Conclusion]The study provides a reference for screening out new and efficient chemical agents against taro soft rot.Dongkun Wang Xiuting Ji Huaixu Zhan Chengpeng Zheng Hao Zong Xiaolei Tan Xiuchun Du Weimin Wang Jingjing Wu Fenglong Wang Xiaoqiang Wang 2021Plant Diseases and Pests2021,12,2:2
8Structure,retrogradation and digestibility of waxy corn starch modified by a GtfC enzyme from Geobacillus sp.12AMOR1显示文摘To lower the retrogradation and digestibility of waxy corn starch for different food applications,a novel thermostable GtfC type 4,6-α-glucanotransferase without N-and C-terminals(GsGtfC)from Geobacillus sp.12AMOR1 was used.Waxy corn starch of 50 g/L was incubated with GsGtfC of 40-100 U/g substrate at 65℃and pH 5.5 for 1 h.Its molecular weight,iodine affinity,XRD crystallinity,and FTIR ratio of heights of bands at 1047 and 1022 cm^(-1) decreased,but ratio of DP<6 to DP≥25 branches and degree of branching increased.GsGtfC cleavedα-1,4-glycosidic bonds and inducedα-1,6-branching points to produce reuteran-likes polymers,which is different from Exiguobacterium sibiricum GtfC enzyme cleavingα-1,4-glycosidic bonds and synthesizing consecutiveα-1,6-glycosidic bonds to produce isomalto/malto-oligosaccharides.GsGtfC modified waxy corn starch had significantly lower DSC retrogradation enthalpies during the storage at 4℃for 3-14 days and significantly lower released glucose during the incubation with mammalian mucosalα-glucosidase at 37℃for 10-360 min.GsGtfC at 100 U/g substrate increased slowly digestible portion from 11.07%to 24.11%.Xiaolei Li Yong Wang Siyu Mu Xiangqing Ji Cheng Zeng Dingkuan Yang Liyuan Dai Cuicui Duan Dan Li 2022Food Bioscience2022,46,2:2
9Opportunistic access control for enhancing security in D2D-enabled cellular networks显示文摘In this paper, we investigate secure communication over cellular uplinks in device-to-device(D2 D)-enabled cellular networks. We consider a more general scenario, in which multiple D2 D pairs could simultaneously share the same resource block with a specific cellular user. First, an opportunistic access control scheme based on wireless channel gains is proposed, by which the candidate selected set of D2 D pairs sharing the same resource block is determined. The proposed scheme could guarantee reliable communications for both cellular users and D2 D pairs, and further could combat eavesdroppers while keeping the legitimate cellular user as non-intrusive as possible, regarding D2 D pairs as friendly jammers in a non-collaborative way. Then, we derive theoretical results to characterize the security and reliability of the typical cellular and D2 D links, respectively. To further support the performance of this hybrid network, we next present an interference threshold optimization model. Our aim is to minimize the connection outage probability(COP)of D2 D pairs subject to the secrecy requirement of the cellular user. Finally, simulation results are presented to validate the effectiveness of our proposed scheme.Yajun CHEN Xinsheng JI Kaizhi HUANG Bin LI Xiaolei KANG 2018Science China(Information Sciences)2018,61,4:2
10Sparse kernel maximum margin clus- tering显示文摘Wu Ji Zhang Xiaolei 2011Neural Network World2011,21,6:1
11Development of a smart mobile farming service system 显示文摘Lihua Zheng Minzan Li Caicong Wu Haijian Ye Ronghua Ji Xiaolei Deng Yanshuang Che Cheng Fu Wei Guo 2010Mathematical and Computer Modelling2010,543,:1
12Expression of β-1,4-galactosyltransferase-I affects cellular adhesion in human peripheral blood CD4 + T cells显示文摘Yu Han Xiaorong Zhou Yuhong Ji Aiguo Shen Xiaolei Sun Yingqing Hu Qiong Wu Xiaoying Wang 2009Cellular Immunology2009,,1:1
13Experimental study on the shear behavior of the interface between cushion materials and the concrete raft显示文摘Cushion is a layer of granular materials between the raft and the ground. The shear behavior of the interface between the cushion and the raft may influence the seismic performance of the superstructure. In order to quantify such influences, horizontal shear tests on the interfaces between different cushion materials and concrete raft under monotonic and cyclic loading were carried out. The vertical pressure P_v, material type and cushion thickness h_c were taken as variables. Conclusions include: 1) under monotonic loading, P_v is the most significant factor; the shear resistance P_(hmax) increases as P_v increases, but the normalized factor of resistance μ_n has an opposite tendency; 2) for the materials used in this study, μ_n varies from 0.40 to 0.70, the interface friction angle δ_s varies from 20° to 35°, while u_(max) varies from 3 mm to 15 mm; 3) under cyclic loading, the interface behavior can be abstracted as a 'three-segment' back-bone curve, the main parameters include μ_n, the displacement u_1 and stiffness K_1 of the elastic stage, the displacement u_2 and stiffness K_2 of the plastic stage; 4) by observation and statistical analysis, the significance of different factors, together with values of K_1, K_2 and μ_n have been obtained.Li Yaokun Han Xiaolei Khaled Galal Ji Jing 2018Earthquake Engineering and Engineering Vibration2018,17,1:1
14Linearithmic time sparse and convex maximum margin clustering 显示文摘Zhang Xiaolei Wu Ji 2012IEEE Transaction on Systems Man and Cybernetics-Part B2012,42,6:1
15Fabrication of immobilized nickel nanoclusters decorated by CxNy species for cellulose conversion to C2,3 oxygenated compounds:Rational design via typical C-and N-sources显示文摘Production of chemicals and fuels from microcrystalline cellulose has inspired scholars’ attention. Deactivation of metallic catalysts including acid leaching and hydrothermal aggregation is still one of the core issues in these systems. To address these problems, we designed and fabricated a series of Ni-W/SiO2 catalysts, which were decorated by CxNy species using C-and N- sources and applied in cellulose conversion to C2,3 oxygenated compounds. The Ni-W/SiO2@CxNy catalysts, underwent complexing and selfassembling process, exhibited special heterojunctions, accompanying strong interactions mainly among Ni phase and CxNy layers. Catalytic results showed that the heterojunctions and outer CxNy layers extensively enhanced productions of hydroxyacetone(HDA) and ethylene glycol(EG) and promoted the hydrothermal stability through prospering in concentration of Lewis pairs from Ni–N—N structure and immobilizing the metallic nanoclusters. 48.25% of EG was yielded under 5.0 MPa H2 pressurized 240 ℃ water for 2.0 h. The Lewis pair further improved the formation of HDA with 20.92% yield. High hydrothermal stability of NiW/SiO2@CxNy catalyst was proved according to the recycling results and trace leaching concentration of Ni and W. This construction of metallic catalysts exploited a new strategy to manufacture extraordinary durability of metallic nanoclusters for cellulose conversion under harsh reaction conditions.Zhuqian Xiao Xiaolei Wang Qinqin Yang Chuang Xing Qing Ge Xikun Gai Jianwei Mao Jianbing Ji 2020Journal of Energy Chemistry2020,29,11:1
16Experimental study of the flow and heat transfer of a gas–water mixture through a packed channel显示文摘Waste heat recovery from the flue gas of gasfired boilers was studied experimentally by measuring the flow and heat transfer of air and water through six kinds of packing with saturated humid air as the simulated flue gas.The experiments measured the effects of inlet air temperature, inlet air velocity and circulating water flow rate on the flow and heat transfer. The results show that higher inlet air temperatures and lower inlet air velocities lower the flow resistance and increase the heat transfer coefficient. The stainless steel packing had better surface wettability and larger thermal conductivity than the plastic packing, which enhanced the heat transfer between the water and the saturated moist air. When both the flow resistance reduction and the heat transfer enhancement were considered, the experimental results gave an optimal packing-specific surface area. A packed heat exchanger tower was designed for waste heat recovery from the flue gas of gas-fired boilers based on the experimental results which had better flow and heat transfer characteristics with lower pump and fan power consumption, more stable system operation and less thermal fluctuations compared with a non-packed heat transfer system with atomized water.Xiaolei Zhu Xiaofeng Sui Yan Zhao Ji'an Meng Zhixin Li 2016Science Bulletin2016,61,5:1
17Study on Construction of Nano tPA Plasmid to Prevent Thrombosis After Mechanical Valve Replacement in Dogs显示文摘Shangyi Ji Ji Jun Yang Xiaohan He Xia Wang Xiaolei Ye Xiaoqing Guo Jianzhou Ling Wenping Zhang Yanhui 2011Journal of Surgical Research2011,,1:1
18Deep belief networks based voice activity detection显示文摘Zhang Xiaolei Wu Ji 2013IEEE Trans on Speech Audio Process2013,21,4:1
19A ferrite stainless steel Cr27Mo6Al3Cu with oxidation resistance显示文摘Baozeng Li Qing Wang Yingmin Wang Jianbing Qiang Xiaona Li Chunjun Ji Xiaolei Guo Chuang Dong Liqiang Zuo 2012Materials and Design2012,,:1
20Linearithmic time sparse and convex maximum margin clustering显示文摘Zhang Xiaolei Wu Ji 2012IEEE Transactions on Sys- tems Man and Cybernetics: Part B Cybernetics2012,42,6:1
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