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26篇 您的检索式:作者名="He Qiyuan"
    题名 作者 年代 出处 被引量
1Chemical characteristics of PM_(2.5) during dust storms and air pollution events in Chengdu,China显示文摘每天好的微粒(PM2.5 ) 样品从 2009 年 4 月在 Chengdu 被收集到 2010 年 2 月在灰尘暴风雨(决策支持系统) 和污染事件的几种类型期间调查他们的化学侧面,包括薄雾(HD ) ,燃烧的生物资源(BB ) ,和焰火显示(FD ) 。最高的 PM2.5 集体集中在决策支持系统(283.3 g/m3 ) 期间被发现,列在后面由 FD (212.7 g/m3 ) , HD (187.3 g/m3 ) ,和 BB (130.1 g/m3 ) 。大多数元素的集中在决策支持系统和污染事件期间被提高,除了 BB。第二等的无机的离子(NO3, SO42,和 NH4+) 在 HD 期间被充实,当从 BB 的 PM2.5 显示出高 K+ 时但是低 SO42。FD 在 SO42 在 K+ 和丰富引起了增加。Ca2+ 充满 DS 样品。离子平衡计算从 HD 显示了那 PM2.5, FD 比在正常的天更酸,但是 DS 和 BB 粒子是碱的。最高器官的碳(OC ) 集中在 FD 期间是 26.1 g/m3,列在后面由 BB (23.6 g/m3 ) , HD (19.6 g/m3 ) ,和决策支持系统(18.8 g/m3 ) 。相反,元素的碳(EC ) 集中比在 BB (6.2 g/m3 ) 和决策支持系统(6.0 g/m3 ) 期间在 HD (10.6 g/m3 ) 和 FD (9.5 g/m3 ) 期间是更丰富的。最高的 OC/EC 比率在 BB 期间被获得,与在 HD 期间最低。SO42/K+ 和 TCA/SO42 比率证明了是为区分污染事件的有效指示物。集体平衡证明那有机物, SO42,和 NO3 在污染事件期间是主导的化学部件,当土壤灰尘在决策支持系统期间是主导的时。Qiyuan Wang Junji Cao Zhenxing Shen JunTao Shun Xiao Lei Luo Qingyang He Xinying Tang 2013Particuology2013,11,1:23
2High-Speed Railway Train Timetable Conflict Prediction Based on Fuzzy Temporal Knowledge Reasoning显示文摘近年来,高速铁路各项技术不断发展,列车运行速度从300 km·h^(–1)提高到400 km·h^(–1)。本文介绍了由韩国研究者开发和论证的技术,即400 km·h^(–1)级集电性能评估方法。此外,本文还详细解释了基于视频图像的监测技术,其不需要直接接触供电系统的任何部件,这项技术被应用于检测以时速400 km运行的高铁上架空接触网组件的稳定性。与常规使用激光传感器或者线相机(line camera)来监控架空接触网的系统不同,开发的新型系统通过视频数据来测量其处于活动状态的参数。根据在商业线路上实地测量的结果,这种系统能有效地测量架空接触网的各项参数。He Zhuang Liping Feng Chao Wen Qiyuan peng Qizhi Tang 2016Engineering2016,2,3:4
3First experimental constraints on WIMP couplings in the effective field theory framework from CDEX显示文摘We present weakly interacting massive particles(WIMPs) search results performed using two approaches of effective field theory from the China Dark Matter Experiment(CDEX), based on the data from both CDEX-1B and CDEX-10 stages. In the nonrelativistic effective field theory approach, both time-integrated and annual modulation analyses were used to set new limits for the coupling of WIMP-nucleon effective operators at 90% confidence level(C.L.) and improve over the current bounds in the low mχregion. In the chiral effective field theory approach, data from CDEX-10 were used to set an upper limit on WIMP-pion coupling at 90% C.L. We for the first time extended the limit to the m_(χ)<6 GeV/c^(2) region.Yi Wang Zhi Zeng Qian Yue LiTao Yang KeJun Kang YuanJing Li Mehment Agartioglu HaiPeng An JianPing Chang JingHan Chen YunHua Chen JianPing Cheng Cheng Yi Chiang WenHan Dai Zhi Deng ChangHao Fang XinPing Geng Hui Gong QiuJu Guo XuYuan Guo HongJian He Li He ShengMing He JinWei Hu TuChen Huang HanXiong Huang HaiTao Jia LiPing Jia Xi Jiang HauBin Li JianMin Li Jin Li MingXuan Li RenMingJie Li Xia Li YuLan Li Bin Liao FongKay Lin ShinTed Lin ShuKui Liu YanDong Liu Yu Liu YuanYuan Liu ZhongZhi Liu Hao Ma YuCai Mao QiYuan Nie JinHua Ning Hui Pan NingChun Qi Jie Ren XiChao Ruan ChangSong Shang Vivek Sharma Ze She Lakhwinder Singh Monoj Kumar Singh TianXi Sun ChangJian Tang WeiYou Tang Yang Tian GuangFu Wang Li Wang Qing Wang Yu Chen Wang YunXiang Wang Zhen Wang Henry Tsz-King Wong ShiYong Wu YuCheng Wu HaoYang Xing Yin Xu Tao Xue YuLu Yan Nan Yi ChunXu Yu HaiJun Yu JianFeng Yue Ming Zeng BingTao Zhang Lei Zhang FengShou Zhang ZhenYu Zhang KangKang Zhao MingGang Zhao JiFang Zhou ZuYing Zhou JingJun Zhu 2021Science China(Physics,Mechanics & Astronomy)2021,64,8:3
4A field-effect approach to directly profiling the localized states in monolayer MoS2显示文摘A fundamental understanding of the charge transport mechanism in two-dimensional semiconductors(e.g., MoS2) is crucial for fully exploring their potential in electronic and optoelectronic devices. By using monolayer graphene as the barrier-free contact to MoS2, we show that the field-modulated conductivity can be used to probe the electronic structure of the localized states. A series of regularly distributed plateaus were observed in the gate-dependent transfer curves. Calculations based on the variable-range hopping theory indicate that such plateaus can be attributed to the discrete localized states near mobility edge. This method provides an effective approach to directly profiling the localized states in conduction channel with an ultrahigh resolution up to 1 meV.Hao Wu Yuan Liu Zeyu Deng Hung-Chieh Cheng Dehui Li Jian Guo Qiyuan He Sen Yang Mengning Ding Yun-Chiao Huang Chen Wang Yu Huang Xiangfeng Duan 2019Science Bulletin2019,64,15:2
5Influence of RMB Cross-border Settlement on the Chinese Economy显示文摘在 2014, RMB 跨边阶的解决的数量到达了 RMB7.6tn。在中国的 macroeconomy 上评估 RMB 国际化的潜在的影响是重要的。在现在的学习,包括钱的供应和需求的一个框架被创造在中国的国内利率,财产价格和外汇储备上分析 RMB 跨边阶的解决的影响。在不同巴卜项目的 RMB 解决在中国的真实经济和金融市场上导致很不同的效果,这被发现。基于分析,我们为 RMB 国际化提供政策优先级的一个框架,与 RMB 跨边阶的解决,项目与不同优先级把组划分了成三。到支持 RMB 国际化,同时,汇率改革应该作为优先级和关于大写的报道自由化维持的谨慎态度被采用。Qiyuan Xu Fan He 2016China & World Economy2016,24,1:2
6Fabrication of Flexible MoS<sub>2</sub> Thin‐Film Transistor Arrays for Practical Gas‐Sensing Applications显示文摘Qiyuan He Zhiyuan Zeng Zongyou Yin Hai Li Shixin Wu Xiao Huang Hua Zhang 2012Small2012,,19:1
7Electrochemically Reduced Single‐Layer MoS<sub>2</sub> Nanosheets: Characterization, Properties, and Sensing Applications显示文摘Shixin Wu Zhiyuan Zeng Qiyuan He Zhijuan Wang Shi Jie Wang Yaping Du Zongyou Yin Xuping Sun Wei Chen Hua Zhang 2012Small2012,,14:1
8Enhanced solid-state luminescence and low-threshold lasing from starburst macromolecular materials显示文摘Lai Wenyong Xia Ruidong He Qiyuan 2009Advanced Materials2009,21,3:1
9Quantitative Surface Plasmon Interferometry via Upconversion Photoluminescence Mapping显示文摘Direct far-field visualization and characterization of surface plasmon polaritons(SPPs)are of great importance for fundamental studies and technological applications.To probe the evanescently confined plasmon fields,one usually requires advanced near-field techniques,which is typically not applicable for real-time,high-throughput detecting or mapping of SPPs in complicated environments.Here,we report the utilization of rare-earth-doped nanoparticles to quantitatively upconvert invisible,evanescently confined SPPs into visible photoluminescence emissions for direct far-field visualization of SPPs in a complicated environment.The observed interference fringes between the SPPs and the coherent incident light at the metal surface provide a quantitative measurement of the SPP wavelength and the SPP propagating length and the local dielectric environments.It thus creates a new signaling pathway to sensitively transduce the local dielectric environment change into interference periodicity variation,enabling a new design of directly measurable,spectrometer-free optical rulers for rapid,ultrasensitive label-free detection of various biomolecules,including streptavidin and prostate-specific antigen,down to the femtomolar level.Anxiang Yin Hao Jing Zhan Wu Qiyuan He Yiliu Wang Zhaoyang Lin Yuan Liu Mengning Ding Xu Xu Zhe Fei Jianhui Jiang Yu Huang Xiangfeng Duan 2019Research2019,,1:1
10Introduction to the wild resources of the genus Boehmeria Jacq. in China显示文摘Fei-Hu Liu Zongju Li Qiyuan Liu Han He Xueni Liang Zhanjun Lai 2003Genetic Resources and Crop Evolution2003,,8:1
11Synthesis of Fe3O4 and Pt Nanoparticles on Reduced Graphene Oxide andTheir Use as a Recyclable Catalyst显示文摘Wu Shixin He Qiyuan Zhou Chunmei 2012Nanoscale2012,4,7:1
12Clinical practice guideline for body composition assessment based on upper abdominal magnetic resonance images annotated using artificial intelligence显示文摘Introduction Upper abdominal magnetic resonance(MR)imaging is appropriate for body composition analysis.111 Especially for individuals with obesity,it is of great value to quantify the hepatic proton density fat fraction(PDFF)and the amount of abdominal adipose tissue during clinical evaluation and for research on obesity-related risks.Analytical results may be used to determine the optimal choice of surgical procedure and evaluate treatment outcomes.Multiple artificial intelligence(Al)algorithms and systems have been developed for the automated measurement of body composition.The basis of Al development and application is to have uniform standards for clinical data acquisition and management.The uneven quality ofMR images is one ofthe major obstacles to Al system development and analytical results.A standardized process of MR scanning and clinical data management is urgently needed.Han Lv Mengyi Li Zhenchang Wang Dawei Yang Hui Xu Juan Li Yang Liu Di Cao Yawen Liu Xinru Wu He Jin Peng Zhang Liqin Zhao Rixing Bai Yunlong Yue Bin Li Nengwei Zhang Mingzhu Zou Jinghai Song Weibin Yu Pin Zhang Weijun Tang Qiyuan Yao Liheng Liu Hui Yang Zhenghan Yang Zhongtao Zhang National Clinical Research Center for Digestive Diseases in Beijing Friendship Hospital,Capital Medical University Beijing Quality Control and Improvement Center of Medical Imaging National Health Commission Capacity Building and Continuing Education Center,Chinese College of Metabolic and Bariatric Surgeons Beijing Quality Control and Improvement Center of Metabolic and Bariatric Surgery 2022Chinese Medical Journal2022,,6:1
13Graphene-Based E- lectro - chemical Sensors 显示文摘Shixin Wu Qiyuan He Chaoliang Tan Ya- dong Wang Hua Zhang 2013Small2013,,:1
14Two-dimensional material-based virus detection显示文摘Cost-effective, rapid, and accurate virus detection technologies play key roles in reducing viral transmission. Prompt and accurate virus detection enables timely treatment and effective quarantine of virus carrier, and therefore effectively reduces the possibility of large-scale spread. However, conventional virus detection techniques often suffer from slow response, high cost or sophisticated procedures. Recently, two-dimensional(2D) materials have been used as promising sensing platforms for the highperformance detection of a variety of chemical and biological substances. The unique properties of 2D materials, such as large specific area, active surface interaction with biomolecules and facile surface functionalization, provide advantages in developing novel virus detection technologies with fast response and high sensitivity. Furthermore, 2D materials possess versatile and tunable electronic, electrochemical and optical properties, making them ideal platforms to demonstrate conceptual sensing techniques and explore complex sensing mechanisms in next-generation biosensors. In this review, we first briefly summarize the virus detection techniques with an emphasis on the current efforts in fighting again COVID-19. Then, we introduce the preparation methods and properties of 2D materials utilized in biosensors, including graphene, transition metal dichalcogenides(TMDs) and other 2D materials. Furthermore, we discuss the working principles of various virus detection technologies based on emerging 2D materials, such as field-effect transistor-based virus detection, electrochemical virus detection, optical virus detection and other virus detection techniques. Then, we elaborate on the essential works in 2D material-based high-performance virus detection. Finally, our perspective on the challenges and future research direction in this field is discussed.Wenbin Wang Wei Zhai Ye Chen Qiyuan He Hua Zhang 2022Science China Chemistry2022,65,3:1
15Molecule-based vertical transistor via intermolecular charge transport throughπ-πstacking显示文摘Theπ-πstacking is a well-recognized intermolecular interaction that is responsible for the construction of electron hopping channels in numerous conducting frameworks/aggregates.However,the exact role ofπ-to-πchannels within typical single crystalline organic semiconductors remains unclear as the orientations of these molecules are diverse,and their control usually requires additional side chain groups that misrepresent the intrinsic properties of the original semiconducting molecules.Therefore,the construction of conduction channels with intrinsicπ-πstacking in the molecule-based device is crucial for the utilization of their unique transport characteristics and understanding of the transport mechanism.To this end,we present a molecular intercalation strategy that integrates two-dimensional layered materials with functional organic semiconductor molecules for functional molecule-based electronics.Various organic semiconductor molecules can be effectively intercalated into the van der Waals gaps of semi-metallic TaS_(2) withπ-πstacking configuration and controlled intercalant content.Our results show that the vertical charge transport in the stacking direction shows a tunneling-dominated mechanism that strongly depends on the molecular structures.Furthermore,we demonstrated a new type of molecule-based vertical transistor in which TaS_(2) andπ-πstacked organic molecules function as the electrical contact and the active channel,respectively.On/off ratios as high as 447 are achieved under electrostatic modulation in ionic liquid,comparable to the current state-of-the-art molecular transistors.Our study provides an ideal platform for probing intrinsic charge transport acrossπ-πstacked conjugated molecules and also a feasible approach for the construction of high-performance molecule-based electronic devices.Cheng Liu Cheng Fu Lingyu Tang Jianghua Wu Zhangyan Mu Yamei Sun Yanghang Pan Bailin Tian Kai Bao Jing Ma Qiyuan He Mengning Ding 2024Nano Research2024,17,5:0
16Rapidly and mildly transferring anatase phase of graphene-activated TiO2 to rutile with elevated Schottky barrier:Facilitating interfacial hot electron injection for Vis-NIR driven photocatalysis显示文摘Visible and even infrared(IR)light-initiated hot electrons of graphene(Gr)catalysts are a promising driven power for green,safe,and sustainable H2O2 synthesis and organic synthesis without the limitation of bandgap-dominated narrow light absorption to visible light confronted by conventional photocatalyst.However,the life time of photogenerated hot electrons is too short to be efficiently used for various photocatalytic reactions.Here,we proposed a straightforward method to prolong the lifetime of photogenerated hot electrons from graphene by tuning the Schottky barrier at Gr/rutile interface to facilitate the hot electron injection.The rational design of Gr-coated TiO2 heterojunctions with interface synergy-induced decrease in the formation energy of the rutile phase makes the phase transfer of TiO2 support proceed smoothly and rapidly via ball milling.The optimized Gr/rutile dyad could provide a H2O2 yield of 1.05 mM·g-1·h-1 under visible light irradiation(λ≥400 nm),which is 30 times of the state-of-the-art noble-metal-free titanium oxide-based photocatalyst,and even achieves a H2O2 yield of 0.39 mM·g-1·h-1 on photoexcitation by near-infrared-region light(~800 nm).Weiyao Hu Qiyuan Li Dong Xu Guangyao Zhai Shinan Zhang Dong Li Xiaoxiao He Jinping Jia Jiesheng Chen Xinhao Li 2022Nano Research2022,15,12:0
17CsBZIP40 confers resistance against citrus bacterial canker by repressing CsWRKY43-CsPrx53/CsSOD13 cascade mediated ROS scavenging显示文摘As the bacterial etiologic agent causing citrus bacterial canker(CBC),Xanthomonas citri subsp.citri(Xcc)seriously impacts citrus plantation and fruit production globally.In an earlier study,we demonstrated that CsBZIP40 can positively impact CBC resistance in the sweet orange(Citrus sinensis).However,the mechanistic basis for the protective benefits conferred by CsBZIP40 is yet to be delineated.Here,we show that CsBZIP40 positively regulates CBC resistance and reactive oxygen species(ROS)homeostasis in transgenic sweet orange overexpressing CsBZIP40.CsBZIP40 directly binds to the TGA-box of the CsWRKY43 promoter to repress its transcriptional activity.CsWRKY43 overexpression induces CBC susceptibility in transgenic sweet oranges.In contrast,its inhibition produces strong resistance to CBC.CsWRKY43 directly binds to the W-boxes of the CsPrx53 and CsSOD13 promoters to positively regulate the activities of these antioxidant enzymes,resulting in the negative regulation of ROS homeostasis and CBC resistance in sweet orange plants.CsPrx53/CsSOD13 knockdown enhances ROS accumulation and CBC resistance.Overall,our results outline a regulatory pathway through which CsBZIP40 transcriptionally represses CsWRKY43-CsPrx53/CsSOD13 cascade-mediated ROS scavenging in a manner conducive to CBC resistance.These mechanisms underscore the potential importance of CsBZIP40,CsWRKY43,CsPrx53,and CsSOD13,providing promising strategies for the prevention of CBC.Qiang Li Xiujuan Qin Miao Zhang Qiyuan Yu Ruirui Jia Jie Fan Xin Huang Jia Fu Chenxi Zhang Baohang Xian Wen Yang Qin Long Aihong Peng Lixiao Yao Shanchun Chen Yongrui He 2023Horticulture Research2023,10,8:0
18A Deformity Fetus Delivered by a Hepatitis B Woman Treated with Lamivudine during Pregnancy显示文摘Qing He Liansan Zhao Qiyuan Tang Zhou Zhou 2010Journal of US-China Medical Science2010,7,4:0
19High-throughput screening system of citrus bacterial cankerassociated transcription factors and its application to the regulation of citrus canker resistance显示文摘One of the main diseases that adversely impacts the global citrus industry is citrus bacterial canker(CBC),caused by the bacteria Xanthomonas citri subsp.citri(Xcc).Response to CBC is a complex process,with both proteinDNA as well as protein–protein interactions for the regulatory network.To detect such interactions in CBC resistant regulation,a citrus high-throughput screening system with 203 CBC-inducible transcription factors(TFs),were developed.Screening the upstream regulators of target by yeast-one hybrid(Y1H)methods was also performed.A regulatory module of CBC resistance was identified based on this system.One TF(CsDOF5.8)was explored due to its interactions with the 1-kb promoter fragment of CsPrx25,a resistant gene of CBC involved in reactive oxygen species(ROS)homeostasis regulation.Electrophoretic mobility shift assay(EMSA),dual-LUC assays,as well as transient overexpression of CsDOF5.8,further validated the interactions and transcriptional regulation.The CsDOF5.8–CsPrx25 promoter interaction revealed a complex pathway that governs the regulation of CBC resistance via H2O2homeostasis.The high-throughput Y1H/Y2H screening system could be an efficient tool for studying regulatory pathways or network of CBC resistance regulation.In addition,it could highlight the potential of these candidate genes as targets for efforts to breed CBC-resistant citrus varieties.Jia Fu Jie Fan Chenxi Zhang Yongyao Fu Baohang Xian Qiyuan Yu Xin Huang Wen Yang Shanchun Chen Yongrui He Qiang Li 2024Journal of Integrative Agriculture2024,23,1:0
20Fabrication and applications of van der Waals heterostructures显示文摘Van der Waals heterostructures(vdWHs) are showing considerable potential in both fundamental exploration and practical applications. Built upon the synthetic successes of(two-dimensional) 2D materials, several synthetic strategies of vdWHs have been developed,allowing the convenient fabrication of diverse vdWHs with decent controllability, quality, and scalability. This review first summarizes the current state of the art in synthetic strategies of vdWHs, including physical combination, deposition, solvothermal synthesis, and synchronous evolution. Then three major applications and their representative vdWH devices have been reviewed, including electronics(tunneling field effect transistors and 2D contact),optoelectronics(photodetector), and energy conversion(electrocatalysts and metal ion batteries), to unveil the potentials of vdWHs in practical applications and provide the general design principles of functional vdWHs for different applications. Besides, moiré superlattices based on vdWHs are discussed to showcase the importance of vdWHs as a platform for novel condensed matter physics. Finally, the crucial challenges towards ideal vdWHs with high performance are discussed, and the outlook for future development is presented. By the systematical integration of synthetic strategies and applications, we hope this review can further light up the rational designs of vdWHs for emerging applications.Junlei Qi Zongxiao Wu Wenbin Wang Kai Bao Lingzhi Wang Jingkun Wu Chengxuan Ke Yue Xu Qiyuan He 2023International Journal of Extreme Manufacturing2023,5,2:0
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