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36篇 您的检索式:作者名="Ren Libo"
    题名 作者 年代 出处 被引量
1Modeling the global ionospheric total electron content with empirical orthogonal function analysis显示文摘In the present work we model the global ionospheric total electron content (TEC) with the analysis of empirical orthogonal functions (EOF). The obtained statistical eigen modes, which makeup the modeled TEC, consist of two factors: the eigen vectors mapping TEC patterns at latitude and longitude (or local time LT), and the corresponding coefficients displaying the TEC variations in different time scales, i.e., the solar cycle, the yearly (annual and semiannual) and the diurnal universal time variations. It is found that the EOF analysis can separate the TEC variations into chief processes and the first two modes illustrate the most of the ionospheric climate properties. The first mode contains both the semiannual component which shows the semiannual ionospheric anomaly and the annual component which shows the annual or non-seasonal ionospheric anomaly. The second mode contains mainly the annual component and shows the normal seasonal ionospheric variation at most latitudes and local time sectors. The annual component in the second mode also manifests seasonal anomaly of the ionosphere at higher mid-latitudes around noontime. It is concluded that the EOF analysis, as a statistical eigen mode method, is resultful in analyzing the ionospheric climatology hence can be used to construct the empirical model for the ionospheric climatology.WAN WeiXing DING Feng REN ZhiPeng ZHANG ManLian LIU LiBo NING BaiQi 2012Science China(Technological Sciences)2012,55,5:15
2Efficient Synthesis of Graphene Nanoribbons Sonochemically Cut from Graphene Sheets显示文摘We report a facile approach to synthesize narrow and long graphene nanoribbons (GNRs) by sonochemically cutting chemically derived graphene sheets (GSs). The yield of GNRs can reach ~5 wt% of the starting GSs. The resulting GNRs are several micrometers in length, with ~75% being single-layer, and ~40% being narrower than 20 nm in width. A chemical tailoring mechanism involving oxygen-unzipping of GSs under sonochemical conditions is proposed on the basis of experimental observations and previously reported theoretical calculations;it is suggested that the formation and distribution of line faults on graphite oxide and GSs play crucial roles in the formation of GNRs. These results open up the possibilities of the large-scale synthesis and various technological applications of GNRs.Zhong-Shuai Wu Wencai Ren Libo Gao Bilu Liu Jinping Zhao Hui-Ming Cheng 2010Nano Research2010,3,1:10
3A theoretical model for mid-and low-latitude ionospheric electric fields in realistic geomagnetic fields显示文摘The geomagnetic fields,which play important roles in the ionospheric dynamo,can greatly affect the global distribution of ionospheric electric fields,currents and other ionospheric electrodynamics phenomena.In the study of ionospheric electrodynamics phenomena,such as the longitudinal variations of ionospheric electric fields,the non-dipolar component of the geomagnetic fields must be taken into account.In this paper,we deduce a theoretical electric field model for ionospheric dynamo at mid-and low-latitude which adopt a modified magnetic apex coordinates system.In the new electric field model,the geomagnetic fields can be calculated from either the IGRF model or the dipole field model,and the neutral winds and conductivities are calculated based on empirical models.Then the dynamo equation for the electric potential is finally solved in terms of the line-by-line iteration method,and the ionospheric electric fields and currents are derived from the calculated potential.Our model can reproduce the main features of the ionospheric electrodynamics processes,so it will be a useful tool for the investigation of the upper atmosphere and ionosphere.REN ZhiPeng WAN WeiXing WEI Yong LIU LiBo YU Tao 2008Chinese Science Bulletin2008,53,24:7
4Recent Advances in Self-Supported Layered Double Hydroxides for Oxygen Evolution Reaction显示文摘Electrochemical water splitting driven by clean and sustainable energy sources to produce hydrogen is an efficient and environmentally friendly energy conversion technology.Water splitting involves hydrogen evolution reaction(HER)and oxygen evolution reaction(OER),in which OER is the limiting factor and has attracted extensive research interest in the past few years.Conventional noble-metal-based OER electrocatalysts like IrO_(2) and RuO_(2) suffer from the limitations of high cost and scarce availability.Developing innovative alternative nonnoble metal electrocatalysts with high catalytic activity and long-term durability to boost the OER process remains a significant challenge.Among all of the candidates for OER catalysis,selfsupported layered double hydroxides(LDHs)have emerged as one of the most promising types of electrocatalysts due to their unique layered structures and high electrocatalytic activity.In this review,we summarize the recent progress on self-supported LDHs and highlight their electrochemical catalytic performance.Specifically,synthesis methods,structural and compositional parameters,and influential factors for optimizing OER performance are discussed in detail.Finally,the remaining challenges facing the development of self-supported LDHs are discussed and perspectives on their potential for use in industrial hydrogen production through water splitting are provided to suggest future research directions.Libo Wu Luo Yu Xin Xiao Fanghao Zhang Shaowei Song Shuo Chen Zhifeng Ren 2020Research2020,,1:7
5Single W18O49 nanowires: A multifunctional nanoplatform for computed tomography imaging and photothermal/ photodynamic/radiation synergistic cancer therapy显示文摘联合治疗是通常基于复杂 nanostructures 的利用,多重部件为 photothermal 作为相片热的精力变换器, photo-sensitizers,或剂量 intensifiers 工作的有希望的癌症治疗策略治疗(PTT ) ,光力学的治疗(太平洋夏季时间) ,或放射治疗(RT ) 。在这研究, ultrathin 钨氧化物 nanowires (W 18 O 49) 用一条 solvothermal 途径被综合并且作为多功能的 theranostic nanoplatform 检验了。在 vitro 并且在 vivo,分析证明这些 nanowires 能导致广泛的热 -- 并且汗衫在 980 nm 在附近下面的癌症房间的调停氧的损坏红外线(NIR ) 激光刺激。他们也被显示作为加强在放射治疗期间局部地并且有选择地提高放热精力免职的代理人的放射剂量工作。独自比作导致 NIR 的 PTT/PDT 和 RT, W 18 O 49-based synergistic tri 形式的治疗根除了异种皮移植肿瘤和没有复发被观察在以内一 9 月列在后面起来。而且,钨元素的强壮的 X 光检查变细能力(Z = 74, 4.438 厘米 2????  ??  ?? 佦 ? 畳 ?? 猯扵 ̄??Jianjian Qiu Qingfeng Xiao Xiangpeng Zheng Libo Zhang Huaiyong Xing Dalong Ni Yanyan Liu Shengjian Zhang Qingguo Ren Yanqing Hua Kuaile Zhao Wenbo Bu 2015Nano Research2015,8,11:5
6Wafer-scale patterned growth of type-II Dirac semimetal platinum ditelluride for sensitive room-temperature terahertz photodetection显示文摘As the lastly unexplored electromagnetic wave,terahertz(THz)radiation has been exploited in a plenty of contexts such as fundamental research,military and civil fields.Most recently,representative two-dimensional(2D)topological semimetal,platinum ditelluride(PtTe_(2))has attracted considerable research interest in THz detection due to its unique physical properties.However,to achieve practical applications,the low-cost,large-scale,controllable synthesis and efficient patterning of 2D materials are key requirements,which remain a challenge for PtTe_(2)and its photodetectors(PDs).Herein,a facile approach is developed to obtain waferscale(2-inches)patterned PtTe_(2)arrays using one-step tellurium-vapor transformation method and micro-Nano technology.PtTe_(2)PD arrays are fabricated with the as-grown PtTe_(2)arrays evenly distributed on a 2-inch wafer,exhibiting high conductivity(~2.7×105 S m^(-1))and good electrical consistency.Driven by the Dirac fermions,PtTe_(2)PDs achieve a broadband(0.02-0.3 THz)response with a fast response speed(~4.7μs),a high sensitivity(~47 pW Hz^(-1/2))and high-resolution transmission THz-imaging capability,which displays the potential of large-area THz array imaging.These results are one step towards the practical applications of integrated PD arrays based on 2D materials.Zhuo Dong Wenzhi Yu Libo Zhang Liu Yang Luyi Huang Yan Zhang Zeqian Ren Haoran Mu Cheng Chen Junrong Zhang Jie Li Lin Wang Kai Zhang 2023InfoMat2023,5,5:1
7Synthesis of High-quality Graphene with a Pre-determined Number of Layers显示文摘Wu Zhongshuai Ren Wencai Gao Libo 2009Carbon2009,47,:1
8Graphene hydrogels deposited in nickel foams for high-rate electrochemical capacitors显示文摘CHEN Jongping REN Weneai GAO Libo 2012Advanced Materials2012,2403,:1
9Clinical features and risk factors for post-partum depression in a large cohort of Chinese women with recurrent major depressive disorder显示文摘Tian Tian Yihan Li Dong Xie Yifeng Shen Jianer Ren Wenyuan Wu Chengbin Guan Zhen Zhang Danning Zhang Chengge Gao Xiaoming Zhang Jinbo Wu Hong Deng Gang Wang Yunshu Zhang Yun Shao Han Rong Zhaoyu Gan Yan Sun Bin Hu Jiyang Pan Yi Li Shufan Sun Libo Song Xue 2011Journal of Affective Disorders2011,,3:1
10Discoidin domain receptor 2 is associated with the increased expression of matrix metalloproteinase-13 in synovial fibroblasts of rheumatoid arthritis显示文摘Jin Su Jiangtian Yu Tingting Ren Wei Zhang Yuanqiang Zhang Xinping Liu Tiezheng Sun Houshan Lu Keiji Miyazawa Libo Yao 20092009 (1-2)2009,,1:1
11Characteristics of the ionospheric total electron content of the equatorial ionization anomaly in the Asian-Australian region during 1996–2004显示文摘Biqiang Zhao Weixing Wan Libo Liu Zhipeng Ren 2009Annales Geophysicae2009,,229:1
12Repeatedgrowth and bubbling transfer of graphene withmillimetre-size single-crystal grains using platinum 显示文摘Libo Gao Wencai Ren Huilong Xu Li Jin 2012Nature Communications2012,,3:1
13Fracture toughness and flexural strength of Sm(Co,Fe,Cu,Zr)7-δ magnetic alloys显示文摘Ren Libo Hadjipanayisb George C Parvizi-Majidi Azar 2003Journal of Magnetism and Magneuic Materials2003,257,:1
14Synthesis of high-quality graphene with a pre-determined number of layers显示文摘Zhong-Shuai Wu Wencai Ren Libo Gao Bilu Liu Chuanbin Jiang Hui-Ming Cheng 2008Carbon2008,,2:1
15Three- Dimensional Flexible and Conductive Interconnected Graphene Networks Grown by Chemical Vapor Deposition 显示文摘Chen Zongping Ren Wencai Gao Libo 2011Nat Mater2011,10,6:1
16Repeated Growth and Bubbling Transfer of Graphene with Millimetre-Size Single-Crystal Grains Using Platinum显示文摘Gao Libo Ren Wencai Xu Huilong 2012Nat Commun2012,3,:1
17ThreeDimensional Flexible and Conductive Interconnected GrapheneNetworks Grown by Chemical Vapour Deposition显示文摘Chen Zongping Ren Wencai Gao Libo 2011NatMater2011,10,6:1
18Three-dimensional Flexible and Conductive Interconnected Graphene Networks Grown by Chemical Vapour Deposition显示文摘Chen Zongping Ren Wencai Gao Libo 0,,06:1
19Synthesis of graphene sheets with high electrical conductivity and good thermal stability by hydrogen arc discharge exfoliation显示文摘Wu ZhongShuai Ren Wencai Gao Libo 2009ACS Nano2009,3,2:1
20Immunosenescence:molecular mechanisms and diseases显示文摘Infection susceptibility,poor vaccination efficacy,age-related disease onset,and neoplasms are linked to innate and adaptive immune dysfunction that accompanies aging(known as immunosenescence).During aging,organisms tend to develop a characteristic inflammatory state that expresses high levels of pro-inflammatory markers,termed inflammaging.This chronic inflammation is a typical phenomenon linked to immunosenescence and it is considered the major risk factor for age-related diseases.Thymic involution,naïve/memory cell ratio imbalance,dysregulated metabolism,and epigenetic alterations are striking features of immunosenescence.Disturbed T-cell pools and chronic antigen stimulation mediate premature senescence of immune cells,and senescent immune cells develop a proinflammatory senescence-associated secretory phenotype that exacerbates inflammaging.Although the underlying molecular mechanisms remain to be addressed,it is well documented that senescent T cells and inflammaging might be major driving forces in immunosenescence.Potential counteractive measures will be discussed,including intervention of cellular senescence and metabolic-epigenetic axes to mitigate immunosenescence.In recent years,immunosenescence has attracted increasing attention for its role in tumor development.As a result of the limited participation of elderly patients,the impact of immunosenescence on cancer immunotherapy is unclear.Despite some surprising results from clinical trials and drugs,it is necessary to investigate the role of immunosenescence in cancer and other age-related diseases.Zaoqu Liu Qimeng Liang Yuqing Ren Chunguang Guo Xiaoyong Ge Libo Wang Quan Cheng Peng Luo Yi Zhang Xinwei Han 2023Signal Transduction and Targeted Therapy2023,8,6:1
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