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Initiation and Evolution of Long-Lived Eastward-Propagating Mesoscale Convective Systems over the Second-Step Terrain along Yangtze-Huaihe River Valley

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Advances in Atmospheric Sciences 2022年第5期39卷 763-781页

作者： Yuanchun ZHANG jianhua SUN Ruyi YANG Ruoyun ma Key Laboratory of Cloud-Precipitation Physics and Severe Storms(LACS) Institute of Atmospheric PhysicsChinese Academy of SciencesBeijing 100029China Southern marine Science and Engineering Guangdong Laboratory(Zhuhai) Zhuhai 519080China University of the Chinese Academy of Sciences Beijing 100049China Public Meteorological Service Center China Meteorological AdministrationBeijing 100044China

Based on the previous statistical analysis of mesoscale convective systems(MCSs)over the second-step terrain along Yangtze-Huaihe River Valley,eight representative long-lived eastward-propagating MCSs are selected for model-based sensitivity testing to investigate the initiation and evolution of these types of MCSs as well as their impact on downstream areas.We subject each MCS to a semi-idealized(CNTL)simulation and a sensitivity(NOLH)simulation that neglects condensational heating in the formation region.The CNTL experiment reveals convection forms in the region downstream of a shortwave trough typified by persistent southwesterly winds in the low-to midtroposphere.Upon merging with other convective systems,moist convection develops into an MCS,which propagates eastward under the influence of mid-tropospheric westerlies,and moves out of the second-step terrain.The MCS then merges with pre-existing local convection over the plains;the merged convection reinforces the cyclonic wind perturbation into a mesoscale vortex at 850 hPa.While this vortex moves eastward to regions with local vortex at 850 hPa,another vortex at 925 hPa is also intensified.Finally,the vortices at 850 and 925 hPa merge together and develop into a mesoscale convective vortex(MCV).In contrast,MCSs fail to form and move eastward in the NOLH experiment.In the absence of eastward-propagating MCSs,moist convection and mesoscale vortices still appear in the plains,but the vortex strength and precipitation intensity are significantly weakened.It is suggested the eastward-propagating MCSs over the second-step terrain significantly impact the development and enhancement of moist convection and vortices in the downstream areas.

关键词： mesoscale convective systems second-step terrain mesoscale convective vortex numerical sensitivity simulation

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TCMFVis:A visual analytics system toward bridging together traditional Chinese medicine and modern medicine

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Visual Informatics 2023年第1期7卷 41-55页

作者： Yichao Jin Fuli Zhu jianhua Li Lei ma School of Information Science and Engineering East China University of Science and TechnologyMeilong Road 130ShanghaiChina Shanghai Key Laboratory of New Drug Design School of PharmacyEast China University of Science and TechnologyMeilong Road 130ShanghaiChina

Although traditional Chinese medicine(TCM)and modern medicine(MM)have considerably different treatment philosophies,they both make important contributions to human health care.TCM physicians usually treat diseases using TCM formula(TCMF),which is a combination of specific herbs,based on the holistic philosophy of TCM,whereas MM physicians treat diseases using chemical drugs that interact with specific biological molecules.The difference between the holistic view of TCM and the atomistic view of MM hinders their combination.Tools that are able to bridge together TCM and MM are essential for promoting the combination of these disciplines.In this paper,we present TCMFVis,a visual analytics system that would help domain experts explore the potential use of TCMFs in MM at the molecular level.TCMFVis deals with two significant challenges,namely,(i)intuitively obtaining valuable insights from heterogeneous data involved in TCMFs and(ii)efficiently identifying the common features among a cluster of TCMFs.In this study,a four-level(herb-ingredient-targetdisease)visual analytics framework was designed to facilitate the analysis of heterogeneous data in a proper workflow.Several set visualization techniques were first introduced into the system to facilitate the identification of common features among TCMFs.Case studies on two groups of TCMFs clustered by function were conducted by domain experts to evaluate TCMFVis.The results of these case studies demonstrate the usability and scalability of the system.

关键词： Traditional Chinese medicine Visual analytics Set visualization Molecular mechanism

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沸石合成后酸位点调控策略及其在VOCs催化氧化中应用进展

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硅酸盐通报 2024年第1期43卷 158-171,182页

作者：王健祥袁建华刘晓杨芸于飞马杰同济大学环境科学与工程学院上海200092 上海宝冶工程技术有限公司上海200941 上海海洋大学海洋生态与环境学院上海201306

挥发性有机化合物(VOCs)是一种常见的工业排放污染源,对人体健康、生态系统有着极强的毒害性。催化氧化是一种节能高效的VOCs去除方法,其关键在于催化剂设计和开发。沸石中酸位点能降低VOCs氧化反应活化能,有效催化VOCs氧化降解,但原始... 详细信息

挥发性有机化合物(VOCs)是一种常见的工业排放污染源,对人体健康、生态系统有着极强的毒害性。催化氧化是一种节能高效的VOCs去除方法,其关键在于催化剂设计和开发。沸石中酸位点能降低VOCs氧化反应活化能,有效催化VOCs氧化降解,但原始沸石的催化性能无法满足VOCs催化需求。通过合成后调控策略,可使沸石中酸位点密度更高,使其分布更有利于VOC分子和催化位点的接触,从而令沸石催化剂具有更加优异的催化性能。本文首先介绍了沸石中酸位点的形成和酸位点密度、类型的表征技术,之后着重介绍了沸石合成后酸位点的调控策略,包括骨架改性和内外表面改性等,最后列举了通过调控策略得到的沸石催化剂对VOCs的催化性能。在以上内容的基础上,展望了沸石合成后酸位点调控策略未来的研究方向,对推动沸石催化剂应用于工业VOCs高效催化氧化有重要意义。

关键词：沸石挥发性有机化合物酸位点调控催化氧化

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Setting up the Goal of Eliminating Outbreaks of Blue-green Alga, Innovating the Idea of Controlling the Taihu Lake, and Ensuring the Safety of Water Supply in the Taihu Lake

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Meteorological and Environmental Research 2020年第4期11卷 6-13页

作者： Xuqing CHEN jianhua ma Xi ZHU Wuxi Algae Control Office Wuxi 214031China Wuxi Delinhai Environmental Protection Technology Co. Ltd.Wuxi 214071China Wuxi Water Conservancy Society Wuxi 214031China

Since the water supply crisis in the Taihu Lake on may 29,2007,the control of the Taihu Lake has achieved remarkable results,and the eutrophication has been greatly reduced.Existing problems are as follows:outbreaks of blue-green alga still appear seriously every year,and there is no goal to eliminate outbreaks of blue-green alga;the load into the lake greatly exceeds the environmental capacity;reed wetlands are greatly reduced;there is still the possibility of a water supply crisis;the research of eliminating outbreak of blue-green alga is weak.In this paper,the experience of controlling the Taihu Lake is summarized,and the ultimate goals of eliminating eutrophication and outbreaks of blue-green alga and restoring wetlands and biodiversity are proposed.Control measures are proposed,such as deepening the promotion of the lake chief system,establishing the lake chief system in an all-round way,and increasing applied scientific and technological efforts and capital investment.The necessity and possibility of further controlling the Taihu Lake to eliminate outbreaks of blue-green alga should be recognized.Relying on controlling eutrophication alone cannot eliminate outbreaks of blue-green alga.The point that phosphorus control is the key to eliminate outbreaks of blue-green alga is not suitable for the Taihu Lake.The integration ideas of"three types"of technologies should be innovated.The first one is"double reduction and double increase"measures to eliminate eutrophication,of which"double reduction"is to reduce external point sources and non-point sources and internal blue-green alga in sediment;for external sources,the treatment standard of sewage plants should be paid special attention to.The second one is"double algae removal"measures to salvage blue-green alga,suppresses and kills algae.The blue-green alga on the surface,middle and bottom of water should be thoroughly salvaged and eliminated from various water areas.The third one is"double restoration"measures to restore wetlands and biodiversity.The area of we

关键词： Taihu Lake Outbreaks of blue-green alga Control effectiveness Establishment of goals Innovation of ideas Elimination of outbreaks Water supply safety

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园艺植物韧皮部卸载研究进展

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浙江农林大学学报 2024年第2期41卷 437-446页

作者：刘洁黄子洋康婕崔祺任梓铭马斯楼建华夏宜平吴昀浙江理工大学建筑工程学院风景园林系球根花卉实验室浙江杭州310018 中国农业大学园艺学院北京100083 杭州植物园杭州西湖园林科学研究院浙江杭州310000 浙江大学农业与生物技术学院观赏植物基因组与基因工程实验室浙江杭州310058

植物韧皮部卸载包括一系列复杂的过程,韧皮部卸载在园艺植物(果树、蔬菜、观赏植物)同化物的运输和分配中具有重要作用。本研究概述了韧皮部卸载的主要途径,并重点综述了韧皮部卸载在园艺植物生长发育方面的主要研究成果,内容包括:①韧... 详细信息

植物韧皮部卸载包括一系列复杂的过程,韧皮部卸载在园艺植物(果树、蔬菜、观赏植物)同化物的运输和分配中具有重要作用。本研究概述了韧皮部卸载的主要途径,并重点综述了韧皮部卸载在园艺植物生长发育方面的主要研究成果,内容包括:①韧皮部运输的主要糖分物质;②韧皮部卸载方式;③韧皮部卸载研究方法;④园艺植物韧皮部卸载研究。随着研究的深入和新技术的出现,园艺植物韧皮部卸载过程中涉及的关键酶与蔗糖转运蛋白等需得到更深入地阐释,进一步助力解析植物韧皮部卸载参与园艺植物生长发育的分子调控机制,并有望为更多的植物韧皮部卸载研究提供新的思路。

关键词：园艺植物韧皮部卸载共质体卸载质外体卸载

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关于3β-羟基类固醇脱氢酶与代谢性疾病的相关研究进展

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国际内分泌代谢杂志 2024年第1期44卷 23-26页

作者：包余婕丁波马建华南京医科大学附属南京医院(南京市第一医院)内分泌代谢科南京210012

3β-羟基类固醇脱氢酶(3β-hydroxysteroid dehydrogenase,3β-HSD)参与多种甾体激素的合成,是影响代谢性疾病发生发展的重要生物标志物,以3β-HSD作为治疗靶点的药物已经成为了近年的研究热点。此文就3β-HSD在糖尿病、肥胖、高血压、... 详细信息

3β-羟基类固醇脱氢酶(3β-hydroxysteroid dehydrogenase,3β-HSD)参与多种甾体激素的合成,是影响代谢性疾病发生发展的重要生物标志物,以3β-HSD作为治疗靶点的药物已经成为了近年的研究热点。此文就3β-HSD在糖尿病、肥胖、高血压、多囊卵巢综合征以及非酒精性脂肪肝中潜在生理病理机制及临床应用前景的最新研究进展进行总结。

关键词： 3β-羟基类固醇脱氢酶代谢性疾病类固醇激素

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Tagging single nucleotide polymorphisms in the PPAR-γ and RXR-α gene and type 2 diabetes risk:a case-control study of a Chinese Han population

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The Journal of Biomedical Research 2011年第1期25卷 33-41页

作者： Juan Du Hui Shi Ying Lu Wencong Du Yuanyuan Cao Qian Li jianhua ma Xinhua Ye Jinluo Cheng Xiaofang Yu Yanqin Gao Ling Zhou Department of Epidemiology and Biostatistics School of Public Health Nanjing Medical University Nanjing Jiangsu 210029 China Department of Endocrinology the Affiliated Nanjing First Hospital of Nanjing Medical University Nanjing Jiangsu 210006 China Department of Endocrinology the Affiliated Changzhou Second Hospital of Nanjing Medical University Changzhou Jiangsu 213003 China Department of Endocrinology the Affiliated Yizheng Third Hospital of Nanjing Medical University Yizheng Jiangsu 211900 China

Peroxisome proliferator-activated receptor （PPAR-γ）,which is mainly involved in adipocyte differentiation, has been suggested to play an important role in the pathogenesis of insulin resistance and atherosclerosis. We investigated the frequencies of two common tagging polymorphisms of the PPAR-γ gene and two of PPAR-α with minor allele frequency （maF）≥ 0.05 in the Chinese Han population and analyzed the correlation between the different genotypes and the risk of type 2 diabetes mellitus （T2DM）. Taqman assay was performed to test the genotypes in T2DM patients （n = 1,105） and normal controls （n = 1,107）. Serum adiponectin concentration was measured by ELISA kit. The variant genotypes rs17817276GG, rs3856806CT and rs3856806CT/TT of PPAR-γ were associated with T2DM, P = 0.023,0.037 and 0.018, respectively. Furthermore, the prevalence of haplotype GT in PPAR-γ was less frequent in the case subjects （0.3%） than in the controls （1.9%） [P 0.001,OR（95%CI）=0.13 （0.06-0.31）]. Patients with genotype TT of rs3856806 had a higher serum level of adiponectin than those with the genotype CC and CT （P = 0.031 and 0.038, respectively）. There was no statistically significant difference between patients and controls in genotype distribution of rs6537944 and rs1045570 of the RXR-α gene. The present study suggests that the variant genotypes in the PPAR-γ gene could decrease the risk for the development of T2DM in the Chinese Han population.

关键词： peroxisome proliferators-activated receptor-γ retinoid X receptor-α type 2 diabetes mellitus single nucleotide polymorphism serum adiponectin

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马病远程智能化诊疗系统的设计与实现

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黑龙江畜牧兽医 2024年第1期 73-79页

作者：隋昕姜俊男曲添翼马玉辉肖建华东北农业大学动物医学学院黑龙江省普通高等学校动物普通疾病防治重点实验室哈尔滨150030 新疆伊犁哈萨克自治州昭苏县西域马业有限责任公司新疆昭苏835099

为了设计并开发出界面简明、携带方便、易于维护、适用于临床常见马病诊断的马病远程智能诊疗系统,弥补基层兽医诊断经验不足的短板,满足基层兽医和马养殖人员对马常见疾病诊断的专业需求,辅助其对马病的合理诊治,试验基于马病专家在临... 详细信息

为了设计并开发出界面简明、携带方便、易于维护、适用于临床常见马病诊断的马病远程智能诊疗系统,弥补基层兽医诊断经验不足的短板,满足基层兽医和马养殖人员对马常见疾病诊断的专业需求,辅助其对马病的合理诊治,试验基于马病专家在临床诊断过程中的思维方式,采用模糊逻辑理论的方式处理置信系数(CF),对知识进行不确定性评估,建立模糊推理模型,应用Java编程语言,结合MySQL 5.7.3数据库及SQLyog 10.0数据库管理工具进行构建。通过对马表现出的临床症状进行推理,对疾病数据进行测定,从而确定疾病并提供相应的预诊疗方案。通过搜索关键词,运用文字和图片资料相结合的方式,以分页列表展现马的相关资讯,实现了对马相关新闻资讯的查阅、马病诊疗的综合查询等功能。针对我国基层现状,马病远程智能化诊疗系统具有一定的科学性,降低了马病临床诊疗的误诊率和漏诊率,提高了基层马兽医的服务质量。说明马病远程智能化诊疗系统可有效提高马病临床诊治水平,同时为其他动物疾病诊疗系统的开发提供了新思路。

关键词：马疾病诊疗系统数据库模糊推理知识表示

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生物模板法合成钠离子电池Na_(2)Ti_(3)O_(7)/C负极材料及其储钠性能

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硅酸盐学报 2024年第1期52卷 46-55页

作者：华丽曾建华朱玉涵翁方青湖北第二师范学院化学与生命科学学院湖北省抗癌活性物质提纯与应用重点实验室武汉430205

以天然螺旋藻为生物模板合成钠离子电池Na_(2)Ti_(3)O_(7)/C负极材料,并与水热法合成Na_(2)Ti_(3)O_(7)纳米材料进行对比。结果表明:该法制备的Na_(2)Ti_(3)O_(7)/C负极材料呈良好的网络条状结构,其上有少量碳残留,首次充放电比容量分别... 详细信息

以天然螺旋藻为生物模板合成钠离子电池Na_(2)Ti_(3)O_(7)/C负极材料,并与水热法合成Na_(2)Ti_(3)O_(7)纳米材料进行对比。结果表明:该法制备的Na_(2)Ti_(3)O_(7)/C负极材料呈良好的网络条状结构,其上有少量碳残留,首次充放电比容量分别是109.3 m A·h/g和117.6 m A·h/g。而水热法制备的Na_(2)Ti_(3)O_(7)材料首次充放电比容量分别为89.3 m A·h/g和86.3 m Ah/g。250次循环后其充放电比容量平均保持率在70%左右,明显优于水热法制备的Na_(2)Ti_(3)O_(7)负极材料(平均为35%),且有更好的循环稳定性和更高的Coulomb效率。通过对合成的Na_(2)Ti_(3)O_(7)/C和Na_(2)Ti_(3)O_(7)在不同倍率下进行20次循环后分析其放电比容量,结果表明:两者在小电流条件下放电衰减比较快,大电流放电时电化学性能相对较稳定,且在相同倍率下Na_(2)Ti_(3)O_(7)/C电极材料的稳定性较之水热法合成的Na_(2)Ti_(3)O_(7)材料好,这为大功率混合动力电车提供了较好的动力支撑。交流阻抗对比分析显示:模板法获得的Na_(2)Ti_(3)O_(7)/C在充放电过程中其电极和电解液总阻抗、电极接触电阻、钠离子电荷转移电阻、Na+在电解液中半无限扩散Wurburg阻抗均比水热法制备的Na_(2)Ti_(3)O_(7)材料要小,进一步表明以天然螺旋藻为模板合成的纳米网络条状结构可以有效提高电极材料的电化学性能且锻烧中残留碳可提高其导电性,这为新型钠电池开发和应用的提供基础支持。

关键词：天然螺旋藻生物模板法水热法三钛酸钠/碳复合材料储钠性能

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Digital Twin-based Quality management Method for the Assembly Process of Aerospace Products with the Grey-markov Model and Apriori Algorithm

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Chinese Journal of Mechanical Engineering 2022年第5期35卷 66-86页

作者： Cunbo Zhuang Ziwen Liu jianhua Liu Hailong ma Sikuan Zhai Ying Wu Laboratory of Digital manufacturing School of Mechanical EngineeringBeijing Institute of TechnologyBeijing 100081China Yangtze Delta Region Academy of Beijing Institute of Technology Jiaxing 314000China Shanghai Institute of Spacecraft Equipment Shanghai 200240China

The assembly process of aerospace products such as satellites and rockets has the characteristics of single-or small-batch production,a long development period,high reliability,and frequent disturbances.How to predict and avoid quality abnormalities,quickly locate their causes,and improve product assembly quality and efficiency are urgent engineering issues.As the core technology to realize the integration of virtual and physical space,digital twin(DT)technology can make full use of the low cost,high efficiency,and predictable advantages of digital space to provide a feasible solution to such problems.Hence,a quality management method for the assembly process of aerospace products based on DT is proposed.Given that traditional quality control methods for the assembly process of aerospace products are mostly post-inspection,the Grey-markov model and T-K control chart are used with a small sample of assembly quality data to predict the value of quality data and the status of an assembly system.The Apriori algorithm is applied to mine the strong association rules related to quality data anomalies and uncontrolled assembly systems so as to solve the issue that the causes of abnormal quality are complicated and difficult to trace.The implementation of the proposed approach is described,taking the collected centroid data of an aerospace product’s cabin,one of the key quality data in the assembly process of aerospace products,as an example.A DT-based quality management system for the assembly process of aerospace products is developed,which can effectively improve the efficiency of quality management for the assembly process of aerospace products and reduce quality abnormalities.

关键词： Quality management Digital twin Assembly process Aerospace product Grey markov model Apriori algorithm

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