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薄壁钢管混凝土构件在纯扭状态下的性能研究

钢结构(中英文) 2008年第4期 83-83页

作者： Lin-Hai han, Guo-huang yao and Zhong Tao

钢管混凝土构件(CFST)在实际中经常受扭。然而到目前为止,该问题在设计规范中都没有得到很好的说明。本文对薄壁钢管混凝土构件的扭转性能进行了初步探讨,采用ABAQUS软件对纯扭状态下的钢管混凝土进行有限元分析。通过对比发现,程序计... 详细信息

钢管混凝土构件(CFST)在实际中经常受扭。然而到目前为止,该问题在设计规范中都没有得到很好的说明。本文对薄壁钢管混凝土构件的扭转性能进行了初步探讨,采用ABAQUS软件对纯扭状态下的钢管混凝土进行有限元分析。通过对比发现,程序计算结果与试验结果是一致的。有限元模型一般用于研究决定组合结构极限扭转强度等重要参数的影响。参数研究可为推导计算极限扭转强度和扭转弯矩应变曲线的公式提供参考。

关键词：钢管混凝土(CFST) 混凝土设计扭转承载力参数分析设计方法

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组合荷载作用下钢管混凝土构件的性能分析

钢结构(中英文) 2008年第4期 83-83页

作者： Lin-Hai han, Guo-huang yao and Zhong Tao

研究了薄壁钢管混凝土构件在组合荷载如压扭,弯扭,压力、弯曲和扭转作用下的性能。采用ABAQUS软件进行有限元分析,对比发现,模型的计算结果与试验一致。采用该模型对在如压扭、弯扭、压弯扭等组合荷载下影响构件极限强度的重要参数进行... 详细信息

研究了薄壁钢管混凝土构件在组合荷载如压扭,弯扭,压力、弯曲和扭转作用下的性能。采用ABAQUS软件进行有限元分析,对比发现,模型的计算结果与试验一致。采用该模型对在如压扭、弯扭、压弯扭等组合荷载下影响构件极限强度的重要参数进行研究分析。参数研究有利于今后推导计算复合构件在组合荷载作用下极限强度的公式。

关键词：钢管混凝土(CFST) 混凝土设计扭转组合荷载承载能力参数分析设计方法

Aggregate Engineering in Supramolecular Polymers via Extensive Non-covalent Networks

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Chinese Journal of Polymer Science 2021年第10期39卷 1310-1318,I0007页

作者： Xin huang Dong Lv Li-Qing Ai Shuk han Cheng Xi yao Department of Biomedical Sciences City University of Hong KongHong Kong 999077China City University of Hong Kong Shenzhen Research InstituteShenzhen 518075China

Aggregate engineering of non-covalent networks endows supramolecular polymers with thermo-mechanical versatility,stimuli-responsive phase transitions and intrinsic damage-healing ***,most non-covalent networks are vulnerable at elevated temperatures,which suppresses the robustness of supramolecular ***,ureidocytosine(UCy)motifs,which are capable of forming extensive non-covalent networks and thus robust molecular aggregates via multivalent hydrogen bonds and aromatic stackings,are proposed to enable precise programming of the thermo-mechanical *** simulations reveal that the enthalpic contributions from the UCy aggregates play dominant roles to compensate the entropic loss from the redistributions of polymeric spacers and stabilize the non-covalent networks over wide temperature *** aggregate-level strategy offers prospects for applications which require thermo-mechanical versatility of supramolecular polymers,such as 3D printing,microfabrication and damage-healing coating.

关键词： Aggregate engineering Damage-healing Extensive non-covalent network Ureidocytosine Supramolecular polymers

A snapback-free TOL-RC-LIGBT with vertical P-collector and N-buffer design

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Chinese Physics B 2018年第8期27卷 627-632页

作者： Weizhong Chen yao huang Lijun He Zhengsheng han Yi huang College of Electronics Engineering Chongqing University of Posts and TelecommunicationsChongqing 400065China Institute of Microelectronics Chinese Academy of SciencesBeijing 100029China University of Chinese Academy of Sciences Beijing 100049China

A reverse-conducting lateral insulated-gate bipolar transistor （NI.2-LltJlS｜） with a trench oxide layer （IUL）, teaturlng a vertical N-buffer and P-collector is proposed. Firstly, the TOL enhances both of the surface and bulk electric fields of the N-drift region, thus the breakdown voltage （BV） is improved. Secondly, the vertical N-buffer layer increases the voltage drop VpN of the P-collector/N-buffer junction, thus the snapback is suppressed. Thirdly, the P-body and the vertical N-buffer act as the anode and the cathode, respectively, to conduct the reverse current, thus the inner diode is integrated. As shown by the simulation results, the proposed RC-LIGBT exhibits trapezoidal electric field distribution with BV of 342.4 V, which is increased by nearly 340% compared to the conventional RC-LIGBT with triangular electric fields of 100.2 V. Moreover, the snapback is eliminated by the vertical N-buffer layer design, thus the reliability of the device is improved.

关键词： reverse-conducting lateral insulated-gate bipolar transistor (RC-LIGBT) breakdown voltage snapback phenomenon

A super-junction SOI-LDMOS with low resistance electron channel

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Chinese Physics B 2021年第5期30卷 607-612页

作者： Wei-Zhong Chen Yuan-Xi huang yao huang Yi huang Zheng-Sheng han College of Electronics Engineering Chongqing University of Posts and TelecommunicationsChongqing 400065China Institute of Microelectronics Chinese Academy of SciencesBeijing 100029China University of Chinese Academy of Sciences Beijing 100049China

A novel super-junction LDMOS with low resistance channel(LRC),named LRC-LDMOS based on the silicon-on-insulator(SOI)technology is *** LRC is highly doped on the surface of the drift region,which can significantly reduce the specific on resistance(R^(on,sp))in forward *** charge compensation between the LRC,N-pillar,and P-pillar of the super-junction are adjusted to satisfy the charge balance,which can completely deplete the whole drift,thus the breakdown voltage(BV)is enhanced in reverse *** three-dimensional(3D)simulation results show that the BV and R^(on,sp)of the device can reach 253 V and 15.5 mΩ·cm^(2),respectively,and the Baliga's figure of merit(FOM=BV^(2)/R^(on,sp))of 4.1 MW/cm^(2)is achieved,breaking through the silicon limit.

关键词： LDMOS breakdown voltage(BV) specific on resistance(R_(on,sp)) figure of merit(FOM)

Advances in ethnopharmacology,phytochemistry and pharmacology of Erigerontis Herba and its Chinese medicine prescriptions

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Traditional Medicine Research 2025年第1期10卷 44-61页

作者： Yang Zhou Yuan-Yan huang Ding-Yue Shang Ying Chen Meng Tian Cheng-Yu Jin Xin Lu Bing-Chun Yan han-Qing Pang Institute of Translational Medicine School of MedicineYangzhou UniversityYangzhou 225009China Jiangsu Key Laboratory of Integrated Traditional Chinese and Western Medicine for Prevention and Treatment of Senile Diseases Yangzhou UniversityYangzhou 225009China School of Medicine Nanjing University of Chinese MedicineNanjing 210023China State Key Laboratory for Chemistry and Molecular Engineering of Medicinal Resources Guangxi Normal UniversityGuiling 541004China.

Erigerontis Herba(EH),the dried whole plant of Erigeron breviscapus,is well-known for circulating blood,activating meridians to alleviate pain,expelling wind,and clearing away *** has been extensively utilized in southern China for the treatment of stroke hemiplegia,chest stuffiness and pains,rheumatic arthralgia,headache,and *** review focuses on the botany,ethnopharmacology,phytochemistry,pharmacology and toxicity of EH and its related prescriptions to offer new insights for prospective research of *** information about EH was retrieved from ancient records and books,PubMed,China National Knowledge Infrastructure,Chinese Pharmacopoeia,Web of Science,Doctoral and Master’s Theses,and various electronic *** is a member of Compositae family and is mainly grown in southern *** Chinese medicine records that EH has the effects of circulating blood and removing blood stasis,expelling wind,and removing cold,as well as relieving rigidity of muscle and relieving *** now,nearly 200 ingredients have been characterized from EH,including flavonoids,caffeoyls,aromatic acids,coumarins,pentacyclic terpenoids,volatile oil and other *** extracts,EH related prescriptions(Dengzhan Xixin injection,Dengzhan Shengmai capsules,etc.)or compounds(scutellarin,scutellarein,etc.)possessed obvious therapeutic effects of ischemic stroke,cerebral hemorrhage,myocardial infarction,Alzheimer’s disease,diabetes and its complications,gastric cancer,bone,and joint degenerative ***,the major active compound of EH,has been used as a quality *** no obvious toxicity of EH has been *** to its traditional applications,ethnopharmacology,phytochemistry,pharmacology,and toxicity,EH was applied as a valuable herb for clinical application in food and medicine *** several compounds have been shown to possess diverse biological activities,the underlying mechanisms of their actions remain *** fully exploi

关键词： Erigeron breviscapus traditional applications ethnopharmacology phytochemistry pharmacology

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尿液分析仪红细胞测定影响因素分析

实用医技杂志 2004年第7B期11卷 1379-1380页

作者：陈梅袁汉尧黄伟英梁陶广东医学院附属医院广东湛江524001

目的 :探讨造成尿液分析仪 (UF - 10 0全自动尿沉渣分析仪和尿十项分析仪 )红细胞假阳性测定的影响因素。方法 :用UF - 10 0法计数尿沉渣红细胞阳性 (RBC >15 /HP)的尿标本和尿十项分析仪测定尿血红蛋白 (BLO)阳性的尿标本用显微镜法镜... 详细信息

目的 :探讨造成尿液分析仪 (UF - 10 0全自动尿沉渣分析仪和尿十项分析仪 )红细胞假阳性测定的影响因素。方法 :用UF - 10 0法计数尿沉渣红细胞阳性 (RBC >15 /HP)的尿标本和尿十项分析仪测定尿血红蛋白 (BLO)阳性的尿标本用显微镜法镜检红细胞对照。结果 :UF - 10 0计数RBC >15 /HP ,尿十项分析仪测定BLO阳性 ,镜检RBC >3/HP的尿标本 12 0例 ;UF - 10 0计数RBC >15 /HP ,尿十项分析仪测定BLO阴性 ,镜检RBC <3/HP的尿标本有 197例(其中镜检有 :草酸钙结晶 115例 ,酵母样真菌 82例 ) ;UF - 10 0计数RBC <15 /HP ,尿十项分析仪测定BLO阳性 ,镜检RBC <3/HP的尿标本 78例。结论 :菌尿、草酸钙结晶尿影响全自动尿沉渣分析仪和尿十项化学分析仪红细胞检测结果。

关键词：红细胞计数假阳性草酸钙结晶酵母菌细菌

Parametric Dimensional Analysis on the Structural Response of An Innovative Subsurface Tension Leg Platform in Ultra-Deep Water

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China Ocean Engineering 2018年第4期32卷 482-489页

作者： ZHEN Xing-wei WU Jia-hao huang Yi han Yue yao Jin-jiang School of Naval Architecture and Ocean Engineering Faculty of Vehicle Engineering and Mechanics Dalian University of Technology

The innovative Subsurface Tension Leg Platform(STLP), which is designed to be located below Mean Water Level(M.W.L) to minimize direct wave loading and mitigate the effect of strong surface currents, is considered as a competitive alternative system to support shallow-water rated well completion equipment and rigid risers for large ultra-deep water oil field development. A detailed description of the design philosophy of STLP has been published in the series of papers and patents. Nonetheless, design uncertainties arise as limited understanding of various parameters effects on the structural response of STLP, pertaining to the environmental loading, structural properties and hydrodynamic characteristics. This paper focuses on providing quantitative methodology on how each parameter affects the structural response of STLP, which will facilitate establishing the unique design criteria as regards to STLP. Firstly, the entire list of dimensionless groups of input and output parameters is proposed based on VaschyBuckingham theory. Then, numerical models are built and a series of numerical tests are carried out for validating the obtained dimensionless groups. On this basis, the calculation results of a great quantity of parametric studies on the structural response of STLP are presented and discussed in detail. Further, empirical formulae for predicting STLP response are derived through nonlinear regression analysis. Finally, conclusions and discussions are made. It has been demonstrated that the study provides a methodology for better control of key parameters and lays the foundation for optimal design of STLP. The obtained conclusions also have wide ranging applicability in reference to the engineering design and design analysis aspects of deepwater buoy supporting installations, such as Grouped SLOR or TLR system.

关键词： subsurface tension leg platform structural response dimensional analysis ultra-deep water

Burden of mental disorders and risk factors in the Western Pacific region from 1990 to 2021

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World Journal of Psychiatry 2025年第1期15卷 93-105页

作者： Ya-Xin Xu Xiao-Xuan Niu Wen-Chang Jia Jing Wen Xue-Lin Cheng Yan han Ming-Hui Peng Jing Zhou yao Liu Sun-Fang Jiang Xiao-Pan Li Department of Health Management Centre Zhongshan HospitalFudan UniversityShanghai 200030China Department of General Practice Zhongshan HospitalFudan UniversityShanghai 200030China Department of Nutrition Zhongshan HospitalFudan UniversityShanghai 200032China School of Public Health Fudan UniversityShanghai 200032China

BACKGROUND The burden of mental disorders(MD)in the Western Pacific Region(WPR)re-mains a critical public health concern,with substantial variations across demogra-phics and *** To analyze the burden of MD in the WPR from 1990 to 2021,along with associated risk factors,to reveal changing trends and emerging *** We used data from the Global Burden of Disease 2021,analyzing prevalence,incidence,and disability-adjusted life years(DALYs)of MD from 1990 to *** methods included age-standardisation and uncertainty analysis to address variations in population structure and data *** Between 1990 and 2021,the prevalence of MD rose from 174.40 million cases[95%uncertainty interval(UI):160.17-189.84]to 234.90 million cases(95%UI:219.04-252.50),with corresponding DALYs increasing from 22.8 million(95%UI:17.22-28.79)to 32.07 million(95%UI:24.50-40.68).During this period,the burden of MD shifted towards older age *** and anxiety disorders were predominant,with females showing higher DALYs for depressive and anxiety disorders,and males more affected by conduct disorders,attention-deficit hyperactivity disorder,and autism spectrum ***,New Zealand,and Malaysia reported the highest burdens,whereas Vietnam,China,and Brunei Darussalam reported the ***,childhood sexual abuse and bullying,and intimate partner violence emerged as significant risk *** This study highlights the significant burden of MD in the WPR,with variations by age,gender,and *** coronavirus disease 2019 pandemic has exacerbated the situation,emphasizing the need for a coordinated response.

关键词： Mental disorders Western pacific region Global Burden of Disease Risk factors Disability-adjusted life years