|
|
|
题名
|
作者
|
年代
|
出处
|
被引量
|
| 1 | Highly active zigzag-like Pt-Zn alloy nanowires with high-index facets for alcohol electrooxidation显示文摘The development of highly efficient Pt-based alloy nanocatalysts is important but remains challenging for fuel cells commercialization.Here,a new class of zigzag-like platinum-zinc (Pt-Zn) alloy nanowires (NWs) with rough surface and controllable composition is reported.The merits of anisotropic one-dimensional nanostructure,stable high-index facets and coordinatively unsaturated Pt sites endow the composition-optimal Pt94Zn6 NWs with a mass activity of 7.2 and 6.2 times higher than that of commercial Pt black catalysts toward methanol/ethanol oxidation,respectively.Alloying-induced d-band electron modulation and lattice strain effects weaken the adsorption strength of poisoning species,which originally enhances the catalytic activity of Pt-Zn NWs.This study provides a new perspective of Pt-Zn electrocatalysts with intrinsic mechanism for enhanced catalytic performance. | Yanchao Xu Xiaoqiang Cui Shuting Wei Qinghua Zhang Lin Gu Fanqi Meng Jinchang Fan Weitao Zheng | 2019 | Nano Research2019，12，5： | 7 |
| 2 | Calibration method to improve the accuracy of THz imaging and spectroscopy in reflection geometry显示文摘We introduce a novel method to accurately extract the optical parameters in terahertz reflection imaging. Our method builds on standard self-referencing methods using the reflected signal from the bottom of the imaging window material to further compensate for time-dependent system fluctuations and position-dependent variation in the window thickness. Our proposed method not only improves the accuracy, but also simplifies the imaging procedure and reduces measurement times. | Shuting Fan Edward P.J.Parrott Benjamin S.Y.Ung Emma Pickwell-MacPherson | 2016 | Photonics Research2016，4，3： | 3 |
| 3 | A Distributed Approach of Big Data Mining for Financial Fraud Detection in a Supply Chain显示文摘Supply Chain Finance(SCF)is important for improving the effectiveness of supply chain capital operations and reducing the overall management cost of a supply chain.In recent years,with the deep integration of supply chain and Internet,Big Data,Artificial Intelligence,Internet of Things,Blockchain,etc.,the efficiency of supply chain financial services can be greatly promoted through building more customized risk pricing models and conducting more rigorous investment decision-making processes.However,with the rapid development of new technologies,the SCF data has been massively increased and new financial fraud behaviors or patterns are becoming more covertly scattered among normal ones.The lack of enough capability to handle the big data volumes and mitigate the financial frauds may lead to huge losses in supply chains.In this article,a distributed approach of big data mining is proposed for financial fraud detection in a supply chain,which implements the distributed deep learning model of Convolutional Neural Network(CNN)on big data infrastructure of Apache Spark and Hadoop to speed up the processing of the large dataset in parallel and reduce the processing time significantly.By training and testing on the continually updated SCF dataset,the approach can intelligently and automatically classify the massive data samples and discover the fraudulent financing behaviors,so as to enhance the financial fraud detection with high precision and recall rates,and reduce the losses of frauds in a supply chain. | Hangjun Zhou Guang Sun Sha Fu Xiaoping Fan Wangdong Jiang Shuting Hu Lingjiao Li | 2020 | Computers, Materials & Continua2020，，8： | 3 |
| 4 | Ultrathin tunable terahertz absorber based on MEMS-driven metamaterial显示文摘The realization of high-performance tunable absorbers for terahertz frequencies is crucial for advancing applications such as single-pixel imaging and spectroscopy.Based on the strong position sensitivity of metamaterials’electromagnetic response,we combine meta-atoms that support strongly localized modes with suspended flat membranes that can be driven electrostatically.This design maximizes the tunability range for small mechanical displacements of the membranes.We employ a micro-electromechanical system technology and successfully fabricate the devices.Our prototype devices are among the best-performing tunable THz absorbers demonstrated to date,with an ultrathin device thickness(~1/50 of the working wavelength),absorption varying between 60%and 80%in the initial state when the membranes remain suspended,and fast switching speed(~27μs).The absorption is tuned by an applied voltage,with the most marked results achieved when the structure reaches the snap-down state.In this case,the resonance shifts by >200% of the linewidth(14% of the initial resonance frequency),and the absolute absorption modulation measured at the initial resonance can reach 65%.The demonstrated approach can be further optimized and extended to benefit numerous applications in THz technology. | Mingkai Liu Mohamad Susli Dilusha Silva Gino Putrino Hemendra Kala Shuting Fan Michael Cole Lorenzo Faraone Vincent P.Wallace Willie J.Padilla David A.Powell Ilya V.Shadrivov Mariusz Martyniuk | 2017 | Microsystems & Nanoengineering2017，3，1： | 2 |
| 5 | Occurrence and impact of polychlorinated dibenzo-p-dioxins/dibenzofurans in the air and soil around a municipal solid waste incinerator显示文摘To assess the influence of polychlorinated dibenzo-p-dioxins and polychlorinated dibenzofurans(PCDD/Fs) on the environment in the vicinity of municipal solid waste incinerators(MSWIs), we determined the levels of PCDD/Fs in air and soil samples collected around a MSWI, which is the largest in China. The International Toxicity Equivalency Quantity(I-TEQ) concentrations of PCDD/Fs in air samples were from 0.0300 to 1.03 pg I-TEQ/m^3(0.445–13.6 pg/m^3), with an average of 0.237 pg I-TEQ/m^3, while in soil samples they ranged from 0.520 to 3.40 pg I-TEQ/g(2.41–88.7 pg/g) with an average of1.49 pg I-TEQ/g. The concentrations of PCDD/Fs in air and soil samples were comparable to other areas, and Pe CDFs were the dominant contributors, which was different from stack gas homologue patterns. Multivariate statistical analysis showed that PCDD/Fs emission from the MSWI did not directly affect the profiles of PCDD/Fs in air and soils, so that vehicles and unidentified emission sources should be considered. The daily inhalation levels of PCDD/Fs for children(0.0110 to 0.392 pg I-TEQ/(kg·day) and adults(0.00600 to 0.221 pg I-TEQ/(kg·day) near the MSWI were lower than the tolerable daily intake of 1.00 to 4.00 pg WHO-TEQ/(kg·day), but in winter the values were higher than in summer. These results can be used as basic data for assessing the risk of PCDD/Fs exposure in residents living around this MSWI, and more monitoring programs and studies should be carried out around MSWIs. | Zhiguang Zhou Yue Ren Jiazhi Chu Nan Li Sen Zhen Hu Zhao Shuang Fan Hui Zhang Pengjun Xu Li Qi Shuting Liang Bin Zhao | 2016 | Journal of Environmental Sciences2016，28，6： | 1 |
| 6 | Primary assessment of the diversity of Omicron sublineages and the epidemiologic features of autumn/winter 2022 COVID-19 wave in Chinese mainland显示文摘With the recent ongoing autumn/winter 2022 COVID-19 wave and the adjustment of public health control measures,there have been widespread SARS-CoV-2 infections in Chinese mainland.Here we have analyzed 369 viral genomes from recently diagnosed COVID-19 patients in Shanghai,identifying a large number of sublineages of the SARS-CoV-2 Omicron family.Phylogenetic analysis,coupled with contact history tracing,revealed simultaneous community transmission of two Omicron sublineages dominating the infections in some areas of China(BA.5.2 mainly in Guangzhou and Shanghai,and BF.7 mainly in Beijing)and two highly infectious sublineages recently imported from abroad(XBB and BQ.1).Publicly available data from August 31 to November 29,2022 indicated an overall severe/critical case rate of 0.035%nationwide,while analysis of 5706 symptomatic patients treated at the Shanghai Public Health Center between September 1 and December 26,2022 showed that 20 cases(0.35%)without comorbidities progressed into severe/critical conditions and 153 cases(2.68%)with COVID-19-exacerbated comorbidities progressed into severe/critical conditions.These observations shall alert healthcare providers to place more resources for the treatment of severe/critical cases.Furthermore,mathematical modeling predicts this autumn/winter wave might pass through major cities in China by the end of the year,whereas some middle and western provinces and rural areas would be hit by the upcoming infection wave in mid-to-late January 2023,and the duration and magnitude of upcoming outbreak could be dramatically enhanced by the extensive travels during the Spring Festival(January 21,2023).Altogether,these preliminary data highlight the needs to allocate resources to early diagnosis and effective treatment of severe cases and the protection of vulnerable population,especially in the rural areas,to ensure the country’s smooth exit from the ongoing pandemic and accelerate socio-economic recovery. | Gang Lu Yun Ling Minghao Jiang Yun Tan Dong Wei Lu Jiang Shuting Yu Fangying Jiang Shuai Wang Yao Dai Jinzeng Wang Geng Wu Xinxin Zhang Guoyu Meng Shengyue Wang Feng Liu Xiaohong Fan Saijuan Chen | 2023 | Frontiers of Medicine2023，17，4： | 1 |
| 7 | Host protection against Omicron BA.2.2 sublineages by prior vaccination in spring 2022 COVID-19 outbreak in Shanghai显示文摘The Omicron family of SARS-CoV-2 variants are currently driving the COVID-19 pandemic.Here we analyzed the clinical laboratory test results of 9911 Omicron BA.2.2 sublineages-infected symptomatic patients without earlier infection histories during a SARS-CoV-2 outbreak in Shanghai in spring 2022.Compared to an earlier patient cohort infected by SARS-CoV-2 prototype strains in 2020,BA.2.2 infection led to distinct fluctuations of pathophysiological markers in the peripheral blood.In particular,severe/critical cases of COVID19 post BA.2.2 infection were associated with less pro-inflammatory macrophage activation and stronger interferon alpha response in the bronchoalveolar microenvironment.Importantly,the abnormal biomarkers were significantly subdued in individuals who had been immunized by 2 or 3 doses of SARS-CoV-2 prototypeinactivated vaccines,supporting the estimation of an overall 96.02% of protection rate against severe/critical disease in the 4854 cases in our BA.2.2 patient cohort with traceable vaccination records.Furthermore,even though age was a critical risk factor of the severity of COVID-19 post BA.2.2 infection,vaccination-elicited protection against severe/critical COVID-19 reached 90.15% in patients aged≥60 years old.Together,our study delineates the pathophysiological features of Omicron BA.2.2 sublineages and demonstrates significant protection conferred by prior prototype-based inactivated vaccines. | Ziyu Fu Dongguo Liang Wei Zhang Dongling Shi Yuhua Ma Dong Wei Junxiang Xi Sizhe Yang Xiaoguang Xu Di Tian Zhaoqing Zhu Mingquan Guo Lu Jiang Shuting Yu Shuai Wang Fangyin Jiang Yun Ling Shengyue Wang Saijuan Chen Feng Liu Yun Tan Xiaohong Fan | 2023 | Frontiers of Medicine2023，17，3： | 1 |
| 8 | Efficacy of active ingredients in Qingdai(Indigo Naturalis)on ulcerative colitis:a network pharmacology-based evaluation显示文摘OBJECTIVE:To elucidate the protective effect of Qingdai(Indigo Naturalis,QD)on ulcerative colitis(UC)by means of in silico and in vivo approaches.METHODS:A systems pharmacology analysis was performed to predict the active components of QD whereas the putative biological targets of QD against UC were obtained through target fishing,network cons-truction and enrichment analyses.Meanwhile,we examined the ameliorative effect of QD in a mouse model of dextran sulfate sodium(DSS)-induced colitis.During the 10-day experiment,the control and diseased mice were given with oral gavages of QD(1.3 g raw herbs·kg^(-1)·d^(-1))or 5-aminosalicylic acid(5-ASA,100 mg·kg^(-1)·d^(-1))every day.The underlying pharma-cological mechanisms of QD in UC were determined using polymerase chain reaction tests,histological staining,enzyme-linked immunoassays,and Western blotting analysis.RESULTS:Searching from various network pharmacology databases,29 compounds were identified in QD.According to the screening criteria suggested by TCMSP(i.e.OB≥30%and DL≥0.18),nine of them were considered the active ingredients that contribute to the ameliorative effects of QD on different mouse models of colitis.Most importantly,the protective effect of QD on DSS-induced colitis was significantly associated with modulations of the expression levels of glycogen synthase kinase 3-β(Gsk3-β)and forkhead box p3(Foxp3),which are widely considered as important regulators of excessive inflammatory responses.CONCLUSIONS:The results of this study provide solid scientific evidence for the use of QD or its core active components in the clinical management of UC. | LI Yue WEN Shuting ZHAO Runyuan FAN Dongmei ZHAO Dike LIU Fengbin MI Hong | 2023 | Journal of Traditional Chinese Medicine2023，43，1： | 1 |
| 9 | Copper-linked IT MoS2/Cu2O Heterostructure for Efficient Photocatalytic Hydrogen Evolution显示文摘Metallic IT phase molybdenum disulfide(lT MoS2)is an excellent catalyst due to the abundant active sites and good conductivity.However,complex synthesis and unstable nature of IT MoS2 still limit its practical application.Herein,we propose a simple method to trigger the phase transition of MoS2.This phase transition is first predicted by density functional theory(DFT)calculations and then confirmed by Raman spectroscopy and high-resolution transmission electron microscopy(HRTEM).IT MoS2/CU2O heterostructure catalyst is then developed,showing enhanced photocatalytic hydrogen evolution. | YIN Yage WEI Shuting ZHANG Lei GUO Ziwang HUANG Haihua SAl Shiran WU Jiandong XU Yanchao LIU Ying ZHENG Lirong FAN Xiaofeng CUI Xiaogiang | 2020 | Chemical Research in Chinese Universities2020，36，6： | 0 |
| 10 | Synthesis and electrochemical properties of Th-doped LiMn_2O_4 powders for lithium-ion batteries显示文摘To improve the cycle performance of eco-friendly and cost-effective spinel LiMn2O4 as the Li secondary batteries, the Th-doped LiThxMn1-xO4 spinel powers were synthesized by solid-state method. The starting materials, Li2CO3, MnO2 and Th(NO3)4·4H2O, were mixed uniformly using a traditional ball milling, which resulted in a uniform particle size distribution in the mixed powers. Tests of X-ray diffraction, SEM, impedance spectra and charge-discharge were carried out for LiThxMn1-xO4 cathode materials. Results show that the synthesized LiTh0.01Mn1.99O4 material exhibits standard spinel structure, regular particle morphology and excellent property of charge-discharge for big current. The capacity retention of the material modified by doping Th is more than 85.1% of the first discharge specific capacity of 111.5 mAh·g-1 after 20 cycles at the current rate 1C, while the pristine LiMn2O4 is only 57% of the first discharge specific capacity of 110.2 mAh·g-1 after the same cycles at the same current rate. | LI Chao FAN Yanliang LI Shuzhong XIE Bing BI Lei YANG Shuting | 2006 | Rare Metals2006，25，z1： | 0 |
| 11 | Electrochemical performance of LiFePO_4 cathode material for Li-ion battery显示文摘In the search for improved materials for rechargeable lithium batteries, LiFePO4 offers interesting possibilities because of its low raw materials cost, environmental friendliness and safety. The main drawback with using the material is its poor electronic conductivity and this limitation has to be overcome. Here Al-doped LiFePO4/C composite cathode materials were prepared by a polymer-network synthesis technique. Testing of X-ray diffraction, charge-discharge, and cyclic voltammetry were carried out for its performance. Results show that Al-doped LiFePO4/C composite cathode materials have a high initial capacity, good cycle stability and excellent low temperature performance. The electrical conductivity of LiFePO4 material can be obviously improved by doping Al. The better electrochemical performances of Al-doped LiFePO4/C composite cathode materials have a connection with its conductivity. | LI Shuzhong LI Chao FAN Yanliang XU Jiaqiang WANG Tao YANG Shuting | 2006 | Rare Metals2006，25，z1： | 0 |
| 12 | Effect of Temperature on Single Event Upsets of TFT SRAM and Its Error Rate Prediction显示文摘Based on Beijing HI-13tandem accelerator and the developed sample temperature measurement and control systems,heavy-ion broadbeam and microbeam experiments of 0.15μm commercial thin film transistor(TFT)structure,65nm triple-well and twin-well bulk CMOS technique SRAMs have been carried out,and | CAI Li LIU Jiancheng QIN Yingcan GUO Gang LI Lili SHI Shuting HUI Ning FAN Hui SHEN Dongjun HE Anlin | 2017 | Annual Report of China Institute of Atomic Energy2017，，1： | 0 |
| 13 | Few-Atom Copper Catalyst for the Electrochemical Reduction of CO to Acetate:Synergetic Catalysis between Neighboring Cu Atoms显示文摘Single-atom catalysts(SACs)are gaining increasing recognition because of their superior catalytic properties for various reactions.However,the performance of SACs is often limited by the lack of neighboring metal centers to cooperate in catalysis.Herein,a synergetic interaction between neighboring Cu atoms of a few-atom catalyst(FAC)on graphdiyne(GDY)is found to greatly enhance the production of acetate in the CO electroreduction reaction relative to Cu SACs.In a 1.0 M KOH electrolyte,this Cu FAC exhibits an acetate Faradaic efficiency of 53.8±1.5%,an ultrahigh relative purity of up to 97 wt%for liquid products,and excellent stability over 23 h continuous electrolysis at–0.8 V versus reversible hydrogen electrode.Theoretical studies suggest that the intersite catalytic communication between two neighboring metal atoms confined in each pore of GDY facilitates the formation of acetic acid through either stepwise hydrogenation of CH_(2)CO^(*)or the direct reaction of H_(2)Owith CH_(2)CO^(*).Our study demonstrates the unprecedented synergetic catalysis of Cu FAC in promoting the selective CO electroreduction toward acetate production. | Weifeng Rong Haiyuan Zou Sha Tan Enyuan Hu Fan Li Chao Tang Hao Dai Shuting Wei Yongfei Ji Lele Duan | 2023 | CCS Chemistry2023，5，5： | 0 |
| 14 | Terahertz topological photonic waveguide switch for on-chip communication显示文摘Terahertz(THz)topological photonic structures are promising for last-centimeter communication in intra/interchip communication systems because they support bit-error-free THz signal transmission with topological robustness.Active and dynamically tunable THz topological photonic components have not yet been experimentally realized.Here,we experimentally demonstrate a THz topological switch(270-290 GHz)based on a valley Hall photonic crystal structured high-resistivity silicon substrate,in which the THz waves can be dynamically turned on/off by an external 447 nm continuous-wave laser.Our device exhibited an on/off ratio of 19 dB under a pumping light intensity of 240 mW/mm^(2).The 3 dB switching bandwidth was〜60 kHz. | Xudong Liu Jialiang Huang Hao Chen Zhengfang Qian JlNGWEN Ma Xiankai Sun Shuting Fan Yiwen Sun | 2022 | Photonics Research2022，10，4： | 0 |
| 15 | Mettl13 protects against cardiac contractile dysfunction by negatively regulating C-Cbl-mediated ubiquitination of SERCA2a in ischemic heart failure显示文摘Ischemic heart failure(HF)remains a leading cause of morbidity and mortality.Maintaining homeostasis of cardiac function and preventing cardiac remodeling deterioration are critical to halting HF progression.Methyltransferase-like protein 13(Mettl13)has been shown to regulate protein translation efficiency by acting as a protein lysine methyltransferase,but its role in cardiac pathology remains unexplored.This study aims to characterize the roles and mechanisms of Mettl13 in cardiac contractile function and HF.We found that Mettl13 was downregulated in the failing hearts of mice post-myocardial infarction(MI)and in a cellular model of oxidative stress.Cardiomyocyte-specific overexpression of Mettl13 mediated by AAV9-Mettl13 attenuated cardiac contractile dysfunction and fibrosis in response to MI,while silencing of Mettl13 impaired cardiac function in normal mice.Moreover,Mettl13 overexpression abrogated the reduction in cell shortening,Ca^(2+)transient amplitude and SERCA2a protein levels in the cardiomyocytes of adult mice with MI.Conversely,knockdown of Mettl13 impaired the contractility of cardiomyocytes,and decreased Ca^(2+)transient amplitude and SERCA2a protein expression in vivo and in vitro.Mechanistically,Mettl13 impaired the stability of c-Cbl by inducing lysine methylation of c-Cbl,which in turn inhibited ubiquitination-dependent degradation of SERCA2a.Furthermore,the inhibitory effects of knocking down Mettl13 on SERCA2a protein expression and Ca^(2+)transients were partially rescued by silencing c-Cbl in H_(2)O_(2)-treated cardiomyocytes.In conclusion,our study uncovers a novel mechanism that involves the Mettl13/c-Cbl/SERCA2a axis in regulating cardiac contractile function and remodeling,and identifies Mettl13 as a novel therapeutic target for ischemic HF. | Shuting Yu ZhiYong Sun Xiuzhu Wang Tiantian Ju Changhao Wang Yingqi Liu Zhezhe Qu KuiWu Liu Zhongting Mei Na Li Meixi Lu Fan Wu Min Huang Xiaochen Pang Yingqiong Jia Ying Li Yaozhi Zhang Shunkang Dou Jianhao Jiang Xin Li Baofeng Yang Weijie Du | 2023 | Science China(Life Sciences)2023，66，12： | 0 |
| 16 | Effective Dose Screening of Low Level Red Light in Different Cell Indexes显示文摘The low level red light irradiation dose that produced positive response on different cell indexes was selected through experiments.In fibroblast detection model,the low level red light irradiation dose that had positive response to the four indicators of mitochondrial membrane potential,ATP release,cell migration and collagen synthesis was screened.The experimental results showed that low level red light with a irradiation dose of 2 J/cm^(2) had a positive response to the above four indexes in fibroblast.The test model on fibroblast was later transferred to dermal papilla cells for further experimental verification.The results showed that low level red light with a irradiation dose of 2 J/cm^(2) also had a positive response to the four indicators of dermal papilla cells,namely,mitochondrial membrane potential,ATP release,cell proliferation rate and collagen synthesis.It is proved that the low level red light with a irradiation dose of 2 J/cm^(2) could improve the mitochondrial function,cell migration and collagen synthesis of fibroblast and dermal papilla cell,thus providing energy for cell activities,improving cell repair ability and cell anti-aging ability. | Qiu Shuting Pan Zhi Jiang Xiao Hu Fan Zhang Hao Wu Fengjuan | 2023 | China Detergent & Cosmetics2023，8，3： | 0 |
| 17 | Influence of N-doping on dielectric properties of carbon-coated copper nanocomposites in the microwave and terahertz ranges显示文摘Carbon-coated Cu nanocomposites (Cu@C NCs) consisting of core-shell nanoparticles and nanorods weresynthesized by arc discharge plasma under an atmosphere of He and H_(2) gas, and the N-doping of themwas achieved by a post-treatment process using ureal as the precursor. The concentration of N in the Ndoped samples varies in the range of 0.62%-2.31 % (in mole), with a transformation from pyrrolic N tographitic N when increasing the relative content of ureal. Dielectric properties of the NCs without or withN-doping in the microwave and THz bands were investigated. The N-doped samples achieve theenhanced dielectric loss in both microwave and THz bands. In the microwave band, dielectric loss wasdominated by interfacial polarization, dipolar polarization, and conduction loss, while in the THz band,plasma resonance, ionic polarization and conduction loss are responsible for the dielectric loss, with astrong absorption characteristic dominated by conductive effect. | Feirong Huang Shuting Fan Yuqi Tian Xinghao Qu Xiyang Li MaoFan Qin Javid Muhammad Xuefeng Zhang Zhidong Zhang Xinglong Dong | 2022 | Journal of Materiomics2022，8，6： | 0 |
| 18 | Erratum to:Highly active zigzag-like Pt-Zn alloy nanowires with high-index facets for alcohol electrooxidation显示文摘The article Highly active zigzag-like Pt-Zn alloy nanowires with high-index facets for alcohol electrooxidation, written by Xiaoqiang Cui and Weitao Zheng, was erroneously originally published electronically on the publisher’s internet portal (currently SpringerLink) on 6 April 2019 with incomplete Electronic Supplementary Material (ESM), which should contain 16 figures and 3 tables. You will find the complete supplementary material file online linked to this publisher’s erratum. | Yanchao Xu Xiaoqiang Cui Shuting Wei Qinghua Zhang Lin Gu Fanqi Meng Jinchang Fan Weitao Zheng | 2019 | Nano Research2019，12，8： | 0 |
您所在的机构暂未开通此部分的功能，请联系管理员