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The Short-Duration Heavy Rainfall in Different Quadrants of Northeast China Cold Vortices

Journal of Meteorological Research 2024年第2期38卷 321-338页

作者： lei YANG Yongguang zheng Liaoning Meteorological Disaster Monitoring and Early Warning Center Shenyang 110166 National Meteorological Centre China Meteorological AdministrationBeijing 100081 China Meteorological Administration Tornado Key Laboratory Foshan 528315

The Northeast China cold vortex(NCCV)is one of the main synoptic-scale systems causing short-duration heavy rainfall(SDHR)in Northeast *** conditions(e.g.,water vapor,instability,and vertical wind shear)are known to be distinctly different over the four quadrants of NCCVs,rendering prediction of the SDHR related to NCCVs(NCCV_SDHR)more *** on 5-yr hourly rainfall observations from 3196 automatic weather stations and ERA5 reanalysis data,10,232 NCCV_SDHR events were identified and divided into four quadrant groups according to their relative position to the center of the NCCV(CVC).The results show that the southeast quadrant features the highest frequency of SDHR,with stronger intensity,longer duration,and wider coverage;and the SDHR in different quadrants presents different formation mechanisms and varied temporal evolution.A new coordinate system is established relative to the CVC that uses the CVC as the origin and the radius of the NCCV(r CV)as the unit *** this new coordinate system,all of the NCCV_SDHR events in the 5-yr study period are *** is found that the occurrence frequency of NCCV_SDHR initially increases and then decreases with increasing distance from the *** highest frequency occurs mainly between 0.8 and 2.5 times r CV from the CVC in the southeast *** can be attributed to the favorable conditions,such as convergence of the low-level shear line and abundant water vapor,which are concentrated in this ***,high-frequency NCCV_SDHR larger than 50 mm(NCCV_SDHR50)is observed to be closer to the *** NCCV_SDHR50occurs,the NCCV is in closer proximity to the subtropical high,resulting in stronger low-level convergence and more abundant water ***,there are lower lifting condensation levels and stronger 0-6-and 0-1-km vertical wind shears in these *** findings provide a valuable reference for more accurate prediction of NCCV_SDHR.

关键词： Northeast China cold vortex short-duration heavy rainfall statistical characteristics environmental conditions

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Electric potential and apparent resistivity in rocks containing non-uniformly distributed cracks

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Acta Seismologica Sinica(English Edition) 2001年第3期14卷 315-324页

作者： peng Zi-zheng Seismological Bureau of Jiangxi Province Seismological Bureau of Shaansi Province

In this paper, the formula of electric field distribution and ground apparent resistivity of high resistance rock medium containing low resistance crack are deduced and simulated. The result shows that interstitial parameters, such as buried depth, scale, strike, and real resistivity, etc, have influence on observation and computing result of apparent resistivity. This study provided a useful foundation for earthquake prediction using apparent resistivity method.

关键词： crack rock electric potential apparent resistivity

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Comprehensive bibliometric analysis of pharmacotherapy for bipolar disorders:Present trends and future directions

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World Journal of Psychiatry 2025年第1期15卷 153-167页

作者： Bo-Fan Chen Li Liu Fang-Zhen Lin Hai-Min Zeng Hai-Qiang Huang Chun-Fang Zhang Cong-Cong Liu Xiang Chen Jie peng Yun-Fa Wang Zhi-Lin Wang Bin Chen De-Le Liu Yun Liu zheng-zheng Li Xin-Xing Zeng The Second Affiliated Hospital Jiangxi Medical CollegeNanchang UniversityNanchang 330006Jiangxi ProvinceChina The Second Clinical Medical College Jiangxi Medical CollegeNanchang UniversityNanchang 330006Jiangxi ProvinceChina Department of Rehabilitation Medicine The Second Affiliated HospitalJiangxi Medical CollegeNanchang UniversityNanchang 330006Jiangxi ProvinceChina Jiangxi Provincial People’s Hospital The First Affiliated Hospital of Nanchang Medical CollegeNanchang 330006Jiangxi ProvinceChina Department of Psychiatry Jiangxi Mental HospitalHospital of Nanchang UniversityNanchang UniversityNanchang 330029Jiangxi ProvinceChina

BACKGROUND Bipolar disorder(BD)is a severe mental illness characterized by significant mood *** drug treatment modalities are crucial for managing *** To analyze the current status and future trends of global research on BD drug treatment over the last *** The Web of Science Core Collection database spanning from 2015 to 2024 was utilized to retrieve literature related to BD drug treatment.A total of 2624 articles were *** visualization and analysis were conducted using CiteSpace,VOSviewer,Pajek,Scimago Graphica,and R-studio bibliometrix to identify RESULTS The United States,China,and the United Kingdom have made the most significant contributions to research on BD drug treatment and formed notable research collaboration *** University of Pittsburgh,Massachusetts General Hospital,and the University of Michigan have been identified as the major research institutions in this *** Journal of Affective Disorders is the most influential journal.A keyword analysis revealed research hotspots related to clinical symptoms,drug efficacy,and genetic mechanisms.A citation analysis identified the management guidelines published by Yatham et al in 2018 as the most cited *** This study provides a detailed overview of the field of BD drug treatment,highlighting key contributors,research hotspots,and future *** study findings can be employed as a reference for future research and policymaking,which may enable further development and optimization of BD pharmacotherapy.

关键词： Bipolar disorder Drug treatment Bibliometric analysis Visualization Mental disorder

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Pattern and timing of late Cenozoic rapid exhumation and uplift of the Helan Mountain,China

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Science China Earth Sciences 2010年第3期53卷 345-355页

作者： LIU JianHui ZHANG PeiZhen zheng DeWen WAN JinLin WANG WeiTao DU peng lei QiYun State Key Laboratory of Earthquake Dynamics Institute of GeologyChina Earthquake AdministrationBeijing 100029China Seismological Bureau of Ningxia Hui Autonomous Region Yinchuan 750001China

The Helan Mountain, an intraplate deformation belt in the North China Craton, is located in the northern portion of the China North-South seismic belt, and at the northwestern margin of the Ordos Block. The Cenozoic deformation history of the Helan Mountain is characterized by extension along the eastern Helan Mountain fault (EHSF), resulting in the exhumation and uplift of the Helan Mountain, relative to the rifting of the adjacent Yinchuan Basin. Here we present new apatite fission track (AFT) data from several transects adjacent to the EHSF in the central and northern Helan Mountain. AFT ages from the northern Helan Mountain (Dawukou and zhengyiguan transects) range from 10 Ma to 89 Ma, whereas AFT ages from the southern Helan Mountain (Suyukou transect) are greater than 71 Ma. The AFT data analysis reveals initiation of rapid uplift and exhumation of the Helan Mountain at 10–12 Ma. Additionally, a plot of the AFT ages versus their mean track length shows a distinctive "boomerang" pattern indicating that the Helan Mountain experienced a discrete phase of accelerated exhumation beginning at 10-12 Ma. Spatially, AFT samples systematically increase in age away from the EHSF and are consistent with late Cenozoic exhumation that was slow in the southwestern Helan Mountain and rapid in the northeastern Helan Mountain, as well more rapid adjacent to the EHSF and slower away from the EHSF. Obviously, the spatial distribution of late Cenozoic exhumation indicates that normal faulting of the EHSF is related to southwestward tilting and rapid exhumation of the Helan Mountain beginning at 10–12 Ma. The uplift and exhumation of the Helan Mountain was a response to the intensive extension of the northwestern margin of the Ordos Block in the late Cenozoic; this occurred under a regional extensional stress field oriented NW-SE along the Yinchuan-Jilantai-Hetao and the Weihe-Shanxi graben systems adjacent to the Ordos Block.

关键词： Helan Mountain apatite fission track cooling history exhumation characteristic

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Systematic evaluation of advance in application and discharge mechanism of solution electrode glow discharge

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Chinese Chemical Letters 2022年第1期33卷 61-70页

作者： Xiaoxu peng zheng Wang Shanghai Institute of Ceramics Chinese Academy of SciencesShanghai 200050China Center of Materials Science and Optoelectronics Engineering University of Chinese Academy of SciencesBeijing 100049China

As a kind of microplasma sustained in air,solution electrode glow discharge(SEGD)ignited between the liquid electrode and metal electrode is attractive to the fields of optical emission spectrometry and mass spectrometry due to its unique advantages,such as low power consumption and low carrier gas ***,the complex and efficient reactions in the liquid phase and plasma phase of SEGD make it considerable research potential in the fields of biology and medicine,material synthesis,*** the close relationship between the various fields on SEGD,here we are devoted to provide an overview of the development of SEGD in various *** importantly,a systematic discussion on the discharge mechanism is conducted based on the research process in various fields for getting deeper insight into the SEGD.

关键词： Solution cathode glow discharge Solution anode glow discharge Mass spectrometry Optimal emission spectroscopy Discharge mechanism

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Multi‐objective particle swarm optimisation of complex product change plan considering service performance

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CAAI Transactions on Intelligence Technology 2023年第3期8卷 1058-1076页

作者： Ruizhao zheng Yong Zhang Xiaoyan Sun Faguang Wang lei Yang Chen peng Yulong Wang School of Information and Control Engineering China University of Mining and TechnologyXuzhouChina Shenzhen Skyworth RGB Electronics Co. LtdShenzhenChina School of Mechatronic Engineering and Automation Shanghai UniversityShanghaiChina

Design change is an inevitable part of the product development *** study proposes an improved binary multi‐objective PSO algorithm guided by problem char-acteristics(P‐BMOPSO)to solve the optimisation problem of complex product change plan considering service ***,a complex product multi‐layer network with service performance is established for the first time to reveal the impact of change effect propagation on the product service ***,the concept of service performance impact(SPI)is defined by decoupling the impact of strongly associated nodes on the service performance in the process of change affect ***,a triple‐objective selection model of change nodes is established,which includes the three indicators:SPI degree,change cost,and change ***,an integer multi‐objective particle swarm optimisation algorithm guided by problem characteristics is developed to solve the model *** results on the design change problem of a certain type of Skyworth TV verify the effectiveness of the established optimisation model and the proposed P‐BMOPSO algorithm.

关键词： multi‐objective particle swarm optimization product change service performance

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An Efficient Multiple Imputation Approach for Estimating Equations with Response Missing at Random and High-Dimensional Covariates

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Journal of Systems Science & Complexity 2021年第1期34卷 440-464页

作者： WANG lei SUN Siying XIA zheng School of Statistics and Data Science LPMC&KLMDASRNankai UniversityTianjin 300071China

Empirical-likelihood-based inference for parameters defined by the general estimating equations of Qin and Lawless(1994) remains an active research topic. When the response is missing at random(MAR) and the dimension of covariate is not low, the authors propose a two-stage estimation procedure by using the dimension-reduced kernel estimators in conjunction with an unbiased estimating function based on augmented inverse probability weighting and multiple imputation(AIPW-MI) methods. The authors show that the resulting estimator achieves consistency and asymptotic normality. In addition, the corresponding empirical likelihood ratio statistics asymptotically follow central chi-square distributions when evaluated at the true parameter. The finite-sample performance of the proposed estimator is studied through simulation, and an application to HIV-CD4 data set is also presented.

关键词： Consistency and asymptotic normality dimension reduction kernel-assisted missing at random multiple imputation

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Efficacy and safety of endoscopic resection in treatment of small gastric stromal tumors: A state-of-the-art review

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World Journal of Gastrointestinal Oncology 2021年第6期13卷 462-471页

作者： Ze-Ming Chen Min-Si peng Li-Sheng Wang zheng-lei Xu Department of Gastroenterology Shenzhen People’s HospitalThe Second Clinical Medical CollegeJinan UniversityShenzhen 518000Guangdong ProvinceChina

Gastrointestinal stromal tumors can occur in any part of the gastrointestinal tract,but gastric stromal tumors(GSTs)are the most *** GSTs have the potential to become malignant,and these can be divided into four different grades by risk from low to high:Very low risk,low risk,medium risk,and high *** guidelines all recommend early complete excision of GSTs larger than 2 cm in ***,it is not clear whether small GSTs(sGSTs,i.e.,those smaller than 2 cm in diameter)should be treated as early as *** National Comprehensive Cancer Network recommends that endoscopic ultrasonographyguided(EUS-guided)fine-needle aspiration biopsy and imaging(computed tomography or magnetic-resonance imaging)be used to assess cancer risk for sGSTs detected by gastroscopy to determine *** EUS indicates a higher risk of tumor,surgical resection is *** are some questions on whether sGSTs also require early *** studies have shown that endoscopic treatment of GSTs with diameters of 2-5 cm is very *** here address whether endoscopic therapy is also suitable for *** this paper,we try to explain three questions:(1)Does sGST require treatment?(2)Is digestive endoscopy a safe and effective means of treating sGST?and(3)When sGSTs are at different sites and depths,which endoscopic treatment method is more suitable?

关键词： Gastrointestinal stromal tumors Small gastric stromal tumors Malignant High risk factors Endoscopy Treatment

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En masse discovery of anti-cancer human monoclonal antibodies by de novo assembly of immunoglobulin sequences from transcriptomes and genome sequences of cancer tissues

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Cellular & Molecular Immunology 2019年第12期16卷 943-945页

作者： peng Zhang Hung-Yen Chou lei Young Pan zheng Yang Liu Division of Immunotherapy Institute of Human VirologyUniversity of Maryland School of MedicineBaltimoreMD 21201USA The Institute for Biomedical Sciences The George Washington UniversityWashingtonDC 20037USA Center for Cancer and Immunology Research Children’s Research InstituteChildren’s National Health SystemWashingtonDC 20010USA OncoImmune IncRockvilleMD 20852USA

TO THE EDITOR:Characterization of the tumor-infiltrating B cell immunoglobulin(Ig)repertoire is critical to understanding B cell immunity in tumors and developing monoclonal antibody ***,the generation of specific antibodies for cancer therapy1,2 is a major endeavor,involving a lengthy process of antigen identification,immunization,hybridoma production and,in most cases,antibody *** a radical departure from the conventional approach,we hereby describe a rapid and potentially en masse identification of cancer-specific antibodies directly from human cancer tissues by de novo assembly from transcriptome and genome *** integrated computational framework was developed and successfully tested for antibody discovery by mining 1945 solid tumor RNA-sequencing-based samples for abundant Ig CDR3 sequences among the TCGA database of glioblastoma multiforme(GBM),lower grade glioma(LGG),lung adenocarcinoma(LUAD),lung squamous carcinoma(LUSC),pancreatic adenocarcinoma(PAAD),and skin cutaneous melanoma(SKCM).

关键词： monoclonal antibodies cancer

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Dynamics of Anchor Last Deployment of Submersible Buoy System

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Journal of Ocean University of China 2016年第1期15卷 69-77页

作者： zheng Zhongqiang XU Jianpeng HUANG peng WANG lei YANG Xiaoguang CHANG Zongyu College of Engineering Ocean University of China Qingdao 266100 P. R. China Key Laboratory of Ocean Engineering of Shandong Province Qingdao 266100 P. R. China

Submersible buoy systems are widely used for oceanographic research,ocean engineering and coastal *** sea environment has obvious effects on the dynamics of submersible buoy *** tension can occur and may cause the snap of cables,especially during the deployment *** paper studies the deployment dynamics of submersible buoy systems with numerical and experimental *** applying the lumped mass approach,a three-dimensional multi-body model of submersible buoy system is developed considering the hydrodynamic force,tension force and impact force between components of submersible buoy system and *** integration method is used to solve the differential *** simulation output includes tension force,trajectory,profile and dropping location and impact force of submersible *** addition,the deployment experiment of a simplified submersible buoy model was carried *** profile and different nodes' velocities of the submersible buoy are *** comparing the results of the two methods,it is found that the numerical model well simulates the actual process and conditions of the *** simulation results agree well with the results of the experiment such as gravity anchor's location and velocities of different nodes of the submersible *** study results will help to understand the conditions of submersible buoy's deployment,operation and recovery,and can be used to guide the design and optimization of the system.

关键词： submersible buoy anchor last deployment dynamic simulation experiment snap slack taut

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