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Chinese Journal of Mechanical Engineering 2007年第5期20卷 16-22页

作者： ZHAO Ming huang Zhengdong li bin CHEN liping CAD Center Huazhong University of Science and Technology Wuhan 430074. China

Aiming at the approximate error of commonly used methods on calculation of hydrostatic pressures of closed hydrostatic guideways with multiple pockets, a more accurate solution is proposed. Taking design of beam ＆ slide-rest guideways for a heavy duty CNC vertical turning mill as an example, under an assumption that stiffnesses of guideways and their jointing structure are sufficiently large, the pressures of the pockets can be attained by adding a co-planarity equation that constrains pocket centers. Then, an optimization model is built to minimize the highest pocket pressure under additional constraints that are posed on the highest seal margin pressure, the highest levitating pressure of the pockets, and the maximum deformation of the guideways. The optimization problem is solved sequentially by using the methods of design of experiments and adaptive simulated annealing on iSIGHT software platform. The results show significant improvements to the original design. Optimized maximum hydrostatic pressure meets the requirement of hydraulic system.

关键词： CNC vertical turning mill Beam Slide rest Hydrostatic guideway Parameter optimization

Systematic and efficient GMPLS-based recovery mechanism with soft-protection using enhanced LMP

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The Journal of China Universities of Posts and Telecommunications 2008年第1期15卷 106-111页

作者： huang Shan-guo li bin DENG Yu ZHANG Jie GU Wan-yi Key Laboratory of Optical Communications and lightwave Technologies Beijing University of Posts and Telecommunications Beijing 100876 China

generalized multi-protocol label switching （GMPLS- based） protection and restoration technologies will play significant role in next-generation broadband IP network to ensure the survivability. In this article, a systematic GMPLS-based recovery mechanism is proposed using enhanced link management protocol （LMP）, which can support bidirectional fault notification relay more effectively. The major contributions and propositions in this article involve： 1） Soft-protection configuration for higher resource utilization with optimized routing; 2） Intelligent Shift from protection manner to restoration manner for the reduction of recovery latency; and 3） Toggleable revertive mode to increase restoration flexibility and to reduce loss of stability. Additionally, by leveraging valuable legacy including shared risk link group （SRLG） processing and fast reroute technique, the proposed recovery mechanism achieves higher resource utilization, fast and robust operation, satisfactory stability and flexibility, and is convenient in the apphcation over heterogeneous transport networks.

关键词： GMPLS LMP soft-protection bi-directional fault notification relay intelligent shift toggleable revertive mode

Physiological responses of seedlings of two oak species to flooding stress

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Forestry Studies in China 2008年第4期10卷 259-264页

作者： HE Kai-yue YANG Jing huang li-bin College of Forest Resources and Environment Nanjing Forestry University Nanjing 210037 P. R. China Institute of Forest Genetics and Breeding Jiangsu Forestry Academy of Science Nanjing 211153 P. R. China

The physiological responses of 2-year-old seedlings of Nuttall＇s oak （Quercus nuttallii） and Southern red oak （***） with two treatments i.e., deep-drowning and shallow-drowning, were studied. Taxodium distichum was selected as a control. The survival rates of seedlings were calculated, the photosynthetic indices were detected by licor-6400 photosynthetic system instrument, and the root activities of seedlings were tested by the method of triphenyltetrazolium chloride （TTC）. Results showed that： 1） By experiencing flooding for 76 d and recovering for 60 d after water was drained off, all seedlings survived under the shallow-drowning treatment. None of Q. falcata seedlings died in the deep-drowning treatment until the 49th day. The survival rate of Q. falcata in the deep-drowning treatment was 30%. 2） Within 61 d of waterlogging treatments, the net photosynthetic rate （Pn）, stomatal conductance （gs） and transpiration rate （Tr） showed a tendency of declining, but intercellular concentration of CO2 （Ci） increased. With the prolongation of flooding stress, the extents of variation for all indices under deep-drowning treatment were larger than those under the shallow-drowning treatment. The variation of Q. falcata in flooding stress was larger than that of Q. nuttallii. 3） The root vigor and alcohol dehydrogenase （ADH） activities were detected at the 61st day in flooding stress. Waterlogging obviously inhibited root activities. Shallow-drowning made root vigor of Q. nuttallii decreased by 11.7%, and for Q. falcata, by 51.88%. Shallow-drowning treatment had no remarkable effects on ADH activities of seedlings, but deep-drowning increased those of Q. nuttallii seedlings by 227.24%, and decreased those of Q. falcata seedlings by 59.22% in the meantime. We conclude that Q. nuttallii had a stronger waterlogging resistance than Q. falcata, but weaker than T. distichum.

关键词： flooding stress Quercus waterlogging resistance physiological responses

SUCCESSFUL EXTRACORPOREAL MEMBRANE OXYGENATION SUPPORT IN A PATIENT WITH FULMINANT MYOCARDITIS

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Chinese Medical Sciences Journal 2006年第3期21卷 194-196页

作者： Yong Yuan Jian-ting Dong Xuan-sheng huang li-ting Zhang bin-fei li Zhi-gang Zhang Ying Han Heart Center Zhongshan People＇s Hospital Zhongshan 528403

FULMINANT myocarditis complicated with refractory cardiogenic shock carries a very high mortality （76%）. Herein we report our experi-ence in treating a 23-year-old Chinese woman with fulminant myocarditis complicate... 详细信息

关键词： extracorporeal membrane oxygenation fulminant myocarditis treatment

Merging bound states in the continuum in an open acoustic resonator

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Science China(Physics,Mechanics & Astronomy) 2025年第1期Mechanics & Astronomy) .卷 124-131页

作者： Lujun huang bin Jia Artem S.Pilipchuk Sibo huang Chen Shen Almas F.Sadreev Yong li Andrey E.Miroshnichenko School of Physics and Electronic Sciences East China Normal University Institute of Acoustics Tongji University L.V.Kirensky Institute of Physics Department of Mechanical Engineering Rowan University School of Engineering and Technology University of New South Wales at Canberra

Bound states in the continuum （BICs） are perfectly localized resonances despite embedding in the continuum ***,an isolated BIC is very sensitive to the structure ***,we report merging acoustic BICs in a single open resonator,robust against the structure *** find that both symmetry-protected BIC and Friedrich-Wintgen BIC are sustained in a single coupled waveguide-resonator *** varying the height and length of the resonator,these two BICs move toward each other and merge into a single one at a critical *** to an individual BIC,the merged BIC is robust against fabrication error because its Q-factor is proportional to ΔL-4,whereΔL embodies the structure *** essence of this extraordinary phenomenon is perfectly explained by the two-and three-level approximations of the effective nonHermitian ***,we present direct experimental demonstrations of the moving and merging of BICs in a coupled 3D waveguide-resonator,which are evidenced by the vanishing of the linewidth of Fano resonance in the transmission *** results may find exciting applications in designing high-quality acoustic sources,sensors and filters.

关键词： acoustic resonances bound state in the continuum high-Q resonances

基于最大熵法的单层球面网壳在地震作用下的破坏模式预测

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振动与冲击 2008年第5期27卷 64-69页

作者：韦征叶继红沈世钊东南大学土木工程学院哈尔滨工业大学土木工程学院哈尔滨150090

从数学与信息论中引入最大熵法概念,同时充分考虑了结构响应的随机性,通过结构最大位移概率密度函数来判断与预测结构的破坏模式。以跨度40m、50m、矢跨比1/5、1/7的K8型单层球面网壳结构为例,同时考虑几何非线性与材料非线性,对网壳结... 详细信息

从数学与信息论中引入最大熵法概念,同时充分考虑了结构响应的随机性,通过结构最大位移概率密度函数来判断与预测结构的破坏模式。以跨度40m、50m、矢跨比1/5、1/7的K8型单层球面网壳结构为例,同时考虑几何非线性与材料非线性,对网壳结构进行了地震作用下破坏模式的分析。利用有限元方法计算得到的若干样本,通过最大熵原理建立了破坏最大位移概率密度函数与结构破坏模式的定量关系,进而合理选取两级地震动,通过这两级地震动下的最大位移概率密度函数最大峰值差来预测结构的破坏模式。

关键词：单层球面网壳地震作用最大熵法破坏模式预测

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Continuability of Solutions for A Generalized liénard System

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湖南大学学报(自然科学版) 1999年第6期26卷 1-8页

作者： huang li hong , DAI bin xiang , HU Si hu (Dept of Applied Mathematics,Hunan Univ,Changsha 410082,China) 湖南大学应用数学系湖南

Some sufficient conditions are obtained for the continuability of solutions in the future for a generalized liénard *** known results are generalized and improved.

关键词： generalized liénard system solution continuability

A case of acute-on-chronic liver failure promoted by thyrotoxicosis triggered due to iodinated contrast media exposure

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Chinese Medical Journal 2020年第6期133卷 745-746页

作者： Yan-Ting Ye Jing-Sun Jiang lin-Jie Guo Cheng-Wei Tang li-bin huang Department of Gastroenterology West China HospitalSichuan UniversityChengduSichuan 610041China Laboratory of Gastroenterology and Hepatology State Key Laboratory of BiotherapyWest China HospitalSichuan UniversityChengduSichuan 610041China

To the Editor:Acute-on-chronic liver failure(ACLF)is a syndrome in patients with chronic liver disease/cirrhosis,characterized by acute deterioration of liver function with one or more extra hepatic organ failures.[1] ACLF may lead to an increased 28-day mortality rate,ranging from 23%to 74%.[2]The common precipitant injuries that influence the course of ACLF include viruses,drugs,alcohol,infection/sepsis,gastrointestinal hemorrhage,ischemia,surgery,and idiopathic insults.[1] There are few case reports on thyrotoxicosis triggered by iodinated contrast media(ICM)exposure that promotes *** we report one such case.

关键词： injuries acute Acute

论当代农科大学生辅导员工作——基于仲恺农业工程学院的实证分析

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广东农业科学 2009年第8期36卷 349-352页

作者：黄礼彬仲恺农业工程学院信息学院广东广州510225

在调查研究的基础上,概括了农科大学生专业思想不牢固,经济困难学生比例较高,就业相对困难,社交基础相对较差,课外特长相对较少等非积极性特点;分析这些特点的成因及其对辅导员工作的影响;并立足于辅导员工作角色,就如何做好农科大学生... 详细信息

在调查研究的基础上,概括了农科大学生专业思想不牢固,经济困难学生比例较高,就业相对困难,社交基础相对较差,课外特长相对较少等非积极性特点;分析这些特点的成因及其对辅导员工作的影响;并立足于辅导员工作角色,就如何做好农科大学生的专业思想教育、助困工作、就业指导和日常教育平台建设等提出相应建议。

关键词：农科大学生高校辅导员

Cobalamin-dependent radical S-adenosyl-L-methionine protein functions with a partner to successively methylate tricyclic indole alkaloid for chuangxinmycin maturation and derivatization

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Science China Chemistry 2025年第1期68卷 308-316页

作者： Sili Wang Jiancheng huang Yanan Du Wei huang Yufeng Xue Xiaokun Xu Guannan Zhong Yuanyuan Shi bin Hong Xiaoying Bian Wen liu State Key Laboratory of Chemical Biology Shanghai Institute of Organic Chemistry University of Chinese Academy of SciencesChinese Academy of Sciences State Key Laboratory of Microbial Technology Shandong University National Health Commission (NHC) Key Laboratory of Biotechnology for Microbial Drugs Institute of Medicinal BiotechnologyChinese Academy of Medical Science & Peking Union Medical College

Cobalamin(Cbl)-dependent radical S-adenosyl-L-methionine(SAM) proteins constitute the largest collection of the radical SAM superfamily that has hundreds of thousands of individual members. Many of these proteins are involved in the biosynthesis of pharmaceutically important natural products to catalyze chemically demanding reactions. In the biosynthetic pathway of chuangxinmycin(CXM), a unique indole alkaloid antibiotic with potent anti-infective activity, functionalization of the characteristic thiopyrano[4,3,2-cd]indole scaffold by regio-and stereoselective C3-methylation is believed to rely on a Cbl-dependent radical process, which, however, remained to be reconstituted biochemically. We here report the dissection of this enzymatic process, which requires the incorporation of Cxm8, a Cbl-dependent radical SAM protein, with Cxm9, a DUF5825family protein that shares no homology to any proteins of known functions. Cxm8 and Cxm9 function together by forming an unexpected heterodimeric complex that selectively catalyzes C3-methylation of the tricyclic indole-S-hetero ring system in a successive manner, achieving CXM and a recently identified, C3-dimethylated congener. Detailed biochemical characterization,isotope labeling, structural simulation and bioinformatics analysis rationalized the catalysis of the Cxm8/Cxm9 complex and particularly the necessity of the DUF5825 protein for C3-methylase activity. This is the first example that a Cbl-dependent protein acts with a partner to exhibit radical SAM activity.

关键词： cbl-dependent radical SAM protein biosynthesis chuangxinmycin stereoselective methylation