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Anomalies of Precipitation over China on Days with Tropical Cyclone Activity over the Bay of Bengal: Role of Moisture Transport

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Journal of Meteorological Research 2024年第2期38卷 368-382页

作者： Na WEI Ying LI xiaoting FAN Nanjing Joint Institute for Atmospheric Sciences Nanjing 210041 State Key Laboratory of Severe Weather Chinese Academy of Meteorological SciencesChina Meteorological AdministrationBeijing 100081 Department of Atmospheric and Oceanic Sciences and Institute of Atmospheric Sciences Fudan UniversityShanghai 200433

Tropical cyclones over the Bay of Bengal(BoBTC)affect the precipitation over China,with distinct seasonal and daily *** study quantitatively examines the daily standardized precipitation anomalies(SPAs)over China on the days with BoBTC activities(storm-days)and related circulations,based on rainfall measurements at surface meteorological stations and ECMWF reanalysis data on a 0.25°×0.25°resolution during *** positive SPA is found over the stations in the two adjacent regions around BoB(Southwest China in May/November and southern Tibetan Plateau in October)and three distant regions(Southeast China and the northeastern boundary of the Qinghai-Tibet Plateau in May,and central North China in October).The SPA distributions are remarkably consistent with the integrated water vapor transport(IVT)*** IVT is found associated with the interaction between southwesterly(southerly)of the BoBTC circulation and low-level monsoonal flow in May(midlevel westerly in winter months).The probabilities of extreme precipitation(EP)occurrences over the above regions all increase on *** adjacent regions,EP is significantly correlated with the northward IVT anomalies to the east of BoBTC circulation,which strengthen the water vapor input through the southern *** IVT anomalies are stronger in May,benefited by the deep monsoonal southwesterlies than those in *** distant regions,EP is more closely related to the IVT anomaly extending back from *** moisture from BoB concentrates along a local low-level convergence line over Southeast China,being further facilitated by coexistence of the BoBTC depression and midlevel westerly trough in *** results highlight the interactions between BoBTCs and local weather systems that influence the general precipitation anomalies and occurrence of EP over China,especially over distant regions.

关键词： tropical cyclone Bay of Bengal precipitation anomaly moisture transport

Anthraquinone Covalently Modified Carbon Nanotubes for Efficient and Steady Electrocatalytic H2O2 Generation

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Chemical Research in Chinese Universities 2020年第6期36卷 1332-1338页

作者： YU Fangyuan WANG Kai WANG Chuan he Xinxia LIAO Yang ZHAO Shilin MAO Hui LI xiaoting MA Jun College of Chemistry and Materials Science Sichuan Normal UniversityChengdu 610068P.R.China Engineering Research Center for Development of Farmland Ecosystem Service Functions Sichuan Province Institutions of Higher EducationChengdu 610068P.R.China

Anthraquinone(AQ)modified carbon materials could be endowed with significantly improved oxygen re-duction reaction(ORR)***,the application of these materials in the generation of hydrogen peroxide(H2O2)has been rarely *** this motivation,AQ covalently modified carbon nanotube(AQ-CNT)was pur-posely synthesized for H2O2 *** was found that the cumulative H2O2 concentration reached up to 187.18 mg(Lh)over AQ(40)-CNT catalyst,nearly 2.0 times higher than that over CNT,and being superior to those over most carbon materials *** enhanced activity stemmed from the improved mass transfer fficiency of oxygen and the enhanced electrocatalytic ***,the AQ(40)-CNT material exhibited satisfactory stability for H2O2 generation,which was ascribed to the strong interaction force of C-N covalent *** present work could provide a vital idea for designing electrode material with simultancously improved activity and stability for H2O2 gencration.

关键词： Anthraquinone Covalently modified carbon nanotube Oxygen reduction reaction Generation of hydrogen peroxide

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硫氧还蛋白还原酶在肺癌疗效监测中的应用

检验医学 2022年第1期37卷 56-59页

作者：满宪凤贺小停张莹俞卫卫王齐尹汉维王润洁无锡市人民医院肿瘤科江苏无锡214000 武汉凯熙医学检验实验室湖北武汉430000

目的探讨血浆硫氧还蛋白还原酶(TR)在肺癌化疗疗效监测中的价值。方法将482例肺癌患者依据化疗疗效分为治疗未获益组(211例)和治疗获益组(271例),检测所有患者TR、癌胚抗原(CEA)、鳞状上皮细胞癌抗原(SCC-Ag)、细胞角蛋白19片段(CYFRA 2... 详细信息

目的探讨血浆硫氧还蛋白还原酶(TR)在肺癌化疗疗效监测中的价值。方法将482例肺癌患者依据化疗疗效分为治疗未获益组(211例)和治疗获益组(271例),检测所有患者TR、癌胚抗原(CEA)、鳞状上皮细胞癌抗原(SCC-Ag)、细胞角蛋白19片段(CYFRA 21-1)、神经元特异性烯醇化酶(NSE)及胃泌素释放肽前体(ProGRP)水平。采用受试者工作特征(ROC)曲线评估各项指标单项及联合检测判断化疗疗效的价值。结果治疗未获益组TR、CEA及NSE水平均高于治疗获益组(P0.05)。治疗未获益组TR阳性率为56.40%,显著高于治疗获益组(13.16%)(P0.05)。结论TR或可作为更有效的肺癌疗效监测的生物标志物。

关键词：硫氧还蛋白还原酶肿瘤标志物肺癌化疗疗效评价

Characteristics of Precipitation in China Associated with Tropical Cyclones over the Bay of Bengal

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Journal of Meteorological Research 2023年第3期37卷 417-430页

作者： xiaoting FAN Ying LI Yan LIU State Key Laboratory of Severe Weather Chinese Academy of Meteorological SciencesChina Meteorological AdministrationBeijing 100081 Department of Atmospheric and Oceanic Sciences and Institute of Atmospheric Sciences Fudan UniversityShanghai 200433 CMA Earth System Modeling and Prediction Centre China Meteorological Administration(CMA)Beijing 100081

In comparison with the number of studies into the impact on precipitation in China of tropical cyclones(TCs)over the western North Pacific,investigation of the effect of TCs in the Bay of Bengal(BoB)on precipitation in China is *** this study,precipitation in China associated with TCs over the BoB was divided into direct rainfall induced by TC cloud clusters and indirect rainfall related to the long-distance transport of TC water *** partitioned the BoB TC-related rainfall that occurred during 2000–2018 in China and analyzed its statistical *** was found that 40 of the 67(60%)TCs that occurred over the BoB exerted influence on rainfall in *** rainfall was mainly distributed over the southeastern Tibetan Plateau and Southwest China,while indirect rainfall was distributed widely with two high-value centers:one over Yunnan Province and the other over the area south of the middle–lower reaches of the Yangtze *** highest mean daily rainfall amount of direct TC precipitation appeared in northern Yunnan Province and southeastern Tibet,while that of indirect TC precipitation occurred eastward of 110°*** the bimodal period of peak occurrence of BoB TCs in May and October–November,the annual mean amount,intensity,and number of days of rainfall in China related to BoB TCs were generally greater in May,e.g.,the mean daily rainfall amount was twice that in October–November,except at stations in southeastern *** comparison with the BoB TCs that induced heavy rainfall in China in early summer,the TCs in autumn had a more southwestward mean position and a more asymmetric structure,with the long axis oriented in the northeast–southwest *** rainfall induced by BoB TCs occurred mainly over southeastern Tibet and provinces south of the middle–lower reaches of the Yangtze River in early summer and over Yunnan and Sichuan provinces in autumn,mostly in response to circulation patterns of a“northern trough with a southern TC”and of“c

关键词： tropical cyclone Bay of Bengal precipitation in China statistical characteristics

Enlarged interlayer of separator coating enabling high-performance lithiumsulfur batteries

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Frontiers of Chemical Science and Engineering 2024年第2期18卷 103-112页

作者： Yanqi Feng Hui Liu xiaoting Liu Qiongqiong Lu School of Materials&Environment Engineering Chengdu Technological UniversityChengdu 611730China School of Materials Science and Engineering Shaanxi Key Laboratory of Green Preparation and Functionalization for Inorganic MaterialsShaanxi University of Science and TechnologyXi’an 710021China Green Catalysis Center and College of ChemistryZhengzhou UniversityZhengzhou 450001China Institute of Materials Henan Key Laboratory of Advanced Conductor MaterialsHenan Academy of SciencesZhengzhou 450046China Leibniz Institute for Solid State and Materials Research(IFW) Dresden e.V.Dresden 01069Germany

Lithiumsulfur batteries have been intensively studied due to their high theoretical energy density and abundant sulfur resources. However, their commercial application is hindered by the low redox kinetics and high sulfur losses. In principle, in the design of cathodes and separators, the adsorption toward lithium-polysulfides should be enhanced and the conversion of soluble high-order lithium-polysulfides should be catalyzed. herein, a KV_(3)O_(8)·0.75H_(2)O separator is designed as an effective lithium-polysulfides mediator in lithiumsulfur batteries. The intercalated K+ would enlarge the interlayer spacing of vanadium oxides, preventing the collapse of the layer structure and improving the electrical/ion conductivity of the interface. Moreover, the KV_(3)O_(8)·0.75H_(2)O modified separator possess a prior adsorption and high redox kinetics toward lithium-polysulfides due to the enhanced diffusion kinetics, which guarantees the high-rate capability and efficient utilization of sulfur. As a result, lithiumsulfur batteries exhibit a high capacity of 1362 mAh·g^(-1) and a long lifespan with a low capacity loss of 0.073% per cycle. This work may provide an alternative way to establish a functional separator to balance the adsorption and conversion of polysulfides during the redox back and forth.

关键词： lithium kinetics adsorption

RGF1-RGI1,a Peptide-Receptor Complex,Regulates Arabidopsis Root Meristem Development via a MAPK Signaling Cascade

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Molecular Plant 2020年第11期13卷 1594-1607页

作者： xiaoting Lu Hongyong Shi Yang Ou Yanwei Cui Jinke Chang Liang Peng Xiaoping Gou Kai he Jia Li Ministry of Education Key Laboratory of Cell Activities and Stress Adaptations School of Life SciencesLanzhou UniversityLanzhou 730000China

Root growth is maintained by the continuous division of cells in the apical *** MERISTEM GROWTH FACTOR 1(RGF1)is a critical peptide hormone regulating root stem cell niche *** studies discovered that five closely related leucine-rich repeat receptor-like protein kinases(LRRRLKs),named RGF1 INSENSITIVES(RGIs)or RGF1 RECEPTORS(RGFRs),are able to perceive the RGF1 signal and redundantly control root stem cell niche ***1 regulates root meristem activity mainly via two downstream transcription factors,PLETHORA 1(PLT1)and *** proteins connecting cell surface RGF1-RGI1 and nuclear PLTs,however,were not ***,we report that the mitogen-activated protein(MAP)kinase kinase 4(MKK4)and MAP kinase 3(MPK3)were coimmunoprecipitated with RGI1-FLAG after Arabidopsis seedlings were treated with *** and biochemical assays confirmed that MKK4 and MKK5,and their downstream targets MPK3 and MPK6,are essential RG卜dependent regulators of root meristem *** addition,we found that the MKK4/MKK5-MPK3/MPK6 module functions downstream of YDA,a *** results demonstrate that RGF1-RGI1 regulate the expression of PLT1/PLT2 via a YDA-MKK4/MKK5-MPK3/MPK6 signaling cascade.

关键词： root meristem RGF1 RGI1 RLK MAPK

Improved incremental transfer matrix method for nonlinear rotor-bearing system

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Acta Mechanica Sinica 2020年第5期36卷 1119-1132,I0004页

作者： Yiheng Chen xiaoting Rui Zhiyong Zhang Adeel Shehzad Institute of Launch Dynamics Nanjing University of Science&TechnologyNanjing 210094China Department of Industrial and Manufacturing Engineering University of Engineering and TechnologyLahore 54000Pakistan

Rotor system supported by nonlinear bearing such as squeeze film damper(SFD)is widely used in practice owing to its wide range of damping capacity and simplicity in *** this paper,an improved and effective Incremental transfer matrix method(ITMM)is first presented by combining ITMM and fast Fourier transform(FFT).Afterwards this method is applied to calculate the dynamic characteristics of a Jeffcott rotor system with *** convergence dificulties incurred caused by strong nonlinearities of SFD has been dealt by adopting a control *** is found that for the more general boundary problems where the boundary conditions are not at input and output ends of a chain system,the supplementary equation is necessarily ***,the Floquet theory is used to analyze the stability and bifurcation type of the obtained periodic *** semi-analytical results,including the periodic solutions of the system,the bifurcation points and their types,are in good agreement with the numerical ***,the involution mechanism of the quasi-periodic and chaotic motions near the first-order translational mode and the second order bending mode of this system is also clarified by this method with the aid of Floquet theory.

关键词： Incremental transfer matrix method Squeeze film damper Jeffcott rotor system Bifurcation Nonlinear characteristics

Interdecadal Variation of the Atmospheric heat Source over the Tibetan Plateau and Surrounding Asian Monsoon Region: Impact on the Northern hemisphere Summer Circulation

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Journal of Meteorological Research 2021年第2期35卷 238-257页

作者： xiaoting SUN Yihui DING Qingquan LI Key Laboratory of Meteorological Disaster Ministry of Education/Joint International Research Laboratory of Climate and Environment Change/Collaborative Innovation Center on Forecast and Evaluation of Meteorological DisastersNanjing University of Information Science&TechnologyNanjing 210044 Chinese Academy of Meteorological Sciences China Meteorological AdministrationBeijing 100081 Laboratory for Climate Studies National Climate CenterChina Meteorological AdministrationBeijing 100081

We use 71-yr(1948–2018) reanalysis data to investigate the interdecadal variation in the atmospheric heat source(Q1) over the Tibetan Plateau and surrounding Asian monsoon region(AMTP) and its effect on the Northern hemisphere summer circulation. The large-scale circulation driven by Q1 over the AMTP is characterized by a center of convergent(divergent) or low(high) potential wind function in the lower(upper) troposphere. Q1 over the AMTP shows a clear interdecadal variation(with positive–negative–positive phases) and these three phases correspond to the time periods 1948–1972, 1973–2005, and 2006–2018, respectively. The thermal circulation has a corresponding interdecadal variation as a response to the interdecadal variation in Q1. An enhanced Q1 leads to an increase in the conversion of the total potential energy to non-divergent wind kinetic energy via the divergent wind velocity. The maximum conversion occurs in the tropopause. The primary thermal forcing for Q1 is produced by the intense, large volume precipitation of the summer monsoon. This induces a response in the large-scale circulation, leading to largescale divergence patterns. The synergistic effects of Pacific Decadal Oscillation(PDO) and North Atlantic Multidecadal Oscillation(AMO) influence Q1 over the AMTP, which is ultimately responsible for the modulation of variations in the global divergent circulation. The global divergent circulation in summer is therefore essentially a direct thermodynamic circulation driven by the strong Q1 over the AMTP.

关键词： Tibetan Plateau atmospheric heat source interdecadal variation global divergent circulation Asian–African summer monsoon

Deep Neural Network with Strip Pooling for Image Classification of Yarn-Dyed Plaid Fabrics

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Computer Modeling in Engineering & Sciences 2022年第3期130卷 1533-1546页

作者： xiaoting Zhang Weidong Gao Ruru Pan School of Artificial Intelligence and Computer Science Jiangnan UniversityWuxi214122China College of Textile and Science Engineering Jiangnan UniversityWuxi214122China

Historically,yarn-dyed plaid fabrics(YDPFs)have enjoyed enduring popularity with many rich plaid patterns,but production data are still classified and searched only according to production *** process does not satisfy the visual needs of sample order production,fabric design,and stock *** study produced an image dataset for YDPFs,collected from 10,661 fabric *** authors believe that the dataset will have significant utility in further research into *** neural networks,such as VGG,ResNet,and DenseNet,with different hyperparameter groups,seemed themost promising tools for the *** paper reports on the authors’exhaustive evaluation of the YDPF *** an overall accuracy of 88.78%,CNNs proved to be effective in YDPF image *** was true even for the low accuracy of Windowpane fabrics,which often mistakenly includes the Prince ofWales *** classification of traditional patterns is also improved by utilizing the strip pooling model to extract local detail features and horizontal and vertical *** strip pooling model characterizes the horizontal and vertical crisscross patterns of YDPFs with considerable *** proposed method using the strip pooling model(SPM)improves the classification performance on the YDPF dataset by 2.64%for ResNet18,by 3.66%for VGG16,and by 3.54%for *** results reveal that the SPM significantly improves YDPF classification accuracy and reduces the error rate of Windowpane patterns as well.

关键词： Yarn-dyed plaid fabric image classification image dataset deep neural network strip pooling model