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A Regularization Semismooth Newton Method for P_(0)-NCPs with a Non-monotone Line Search

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Numerical Mathematics(Theory,Methods and Applications) 2012年第2期5卷 186-204页

作者： Li-Yong lu Wei-Zhe gu Wei Wang Department of Mathematics School of ScienceTianjin University of TechnologyTianjin 300384China Department of Mathematics School of ScienceTianjin UniversityTianjin 300072China School of Public Administration Tianjin University of CommerceTianjin 300134China

In this paper,we propose a regularized version of the generalized NCPfunction proposed by Hu,Huang and Chen[***.,230(2009),pp.69–82].Based on this regularized function,we propose a semismooth Newton method for solving nonlinear complementarity problems,where a non-monotone line search scheme is *** particular,we show that the proposed non-monotone method is globally and locally superlinearly convergent under suitable *** test the proposed method by solving the test problems from *** experiments indicate that this algorithm has better numerical performance in the case of p=5 andθ∈[0.25,075]than other cases.

关键词： Nonlinear complementarity problem non-monotone line search semismooth Newton method global convergence local superlinear convergence

Concurrent tuberculous transverse myelitis and asymptomatic neurosyphilis:A case report

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World Journal of Clinical Cases 2021年第31期9卷 9645-9651页

作者： lu-Yan gu Jun Tian Ya-Ping Yan Department of Neurology Second Affiliated Hospital of Zhejiang University School of MedicineHangzhou 310009Zhejiang ProvinceChina

BACKGROUND Tuberculous myelitis is a rare manifestation of tuberculosis(TB)that is usually caused by hematogenous spread of Mycobacterium tuberculosis(MTB).Neurosyphilis is a neurological disease that occurs when Treponema pallidum invades the brain or the spinal ***,these two diseases involving the spinal cord are rare and cases of concurrent tuberculous transverse myelitis and asymptomatic neurosyphilis have seldom been *** SUMMARY A 56-year-old man presented with numbness and pain of both lower limbs for 2 wk and dysuria for 1 *** serology and cerebrospinal fluid(CSF)analysis supported the diagnosis of neurosyphilis and the patient was treated with intravenous ceftriaxone at first,but symptoms still ***,magnetic resonance images revealed multiple lesions along the cervicothoracic junction,and chest computed tomography showed a typical TB *** DNA was detected in the CSF sample by metagenomic next-generation *** the patient was diagnosed with tuberculous myelitis combined with asymptomatic ***,quadruple anti-TB drug standardized therapy was empirically used and his neurological symptoms improved *** Patients can have coinfection with tuberculous transverse myelitis and asymptomatic *** with neurosyphilis should be examined for other pathogens.

关键词： Tuberculous myelitis Neurosyphilis Metagenomic next-generation sequencing Case report

Influence of Structural Parameters of Turbocharger Floating Bearing on Its Dynamic Characteristic Coefficients

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Journal of Beijing Institute of Technology 2017年第2期26卷 183-190页

作者： Junsheng Zhao Yuantong gu Shengxian Yi Xuelong lu School of Mechanical and Power Engineering North University of China School of Chemistry Physics and Mechanical EngineeringQueensland University of Technology

The structure parameters in an actual industrial production have a great influence on the coefficient of supercharger floating bearing dynamic characteristics,but there has been little systematic study so *** this paper,the influence of structural parameters of the turbocharger floating bearing on its dynamic characteristic coefficientsis systematically investigated based on the theories of hydrodynamic lubrication and *** influence of clearance ratio on eccentricity and the influence of internal to external radius ratios,and Sommerfeld number were analyzed.A new formula of responding characteristics of the oil film force caused by the displacement or velocity disturbance was deduced near an equilibrium in the steady *** the newly developed formula,the dynamic characteristic was studied for floating *** for change of oil film stiffness and damping was analyzed with the structural parameters of floating bearing such as radius ratios and *** has been found that the clearance ratio increases with eccentricity when the radius ratio is *** eccentricity decreases with the internal to external radius ratio of floating rings when the clearance ratio is *** absolute value of total principal stiffness and total main damping decrease with the clearance ratio and radius ratio of floating rings when the total cross damping is *** results and findings in this paper can contribute to nonlinear dynamics designs of turbocharger rotor-bearing systems.

关键词： turbocharger floating bearing structure parameters dynamic characteristic coefficient

In-situ polymerized nanosilica/acrylic/epoxy hybrid coating:Preparation,microstructure and properties

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Science China(Technological Sciences) 2009年第8期52卷 2204-2209页

作者： lu HongBin gu MinHao HUANG JianFeng HU Yong MENG XiangKang National Laboratory of Solid State Microstructures Department of Materials Science and EngineeringNanjing UniversityNanjing 210093China

An in-situ polymerization method was employed to synthesize the nanosilica/acrylic/epoxy (SAE) hybrid coating on AISI 430 stainless steel (430SS), as compared with a traditional blending method. Mi- crostructures of the blending SAE hybrid coating (BC) and in-situ SAE hybrid coating (ISC) were characterized by transmission electron microscopy (TEM). Corrosion resistance of BC and ISC on 430SS was evaluated by the neutral salt spray test and potentiodynamic polarization technique. Failure mechanism of the BC on 430SS was suggested by the microstructures and corrosion behaviors. Serious aggregation of nanosilica particles in the BC impairs its structural uniformity and induces the flaws formation. These flaws in the BC initiates the failures of pitting, filiform corrosion and peeling which are accelerated by the O2 concentration cell and H+ self-catalysis in chlorine-containing moist environments. The ISC-coated 430SS shows a more advantageous corrosion resistance than that of the BC-coated. The ISC-coated 430SS can suffer the salt spray over 1000 h. Besides, it exhibits a high corrosion potential beyond 0.925 V and good passivation characteristics during the potentiodynamic polarization.

关键词： in-situ polymerization hybrid coating 430 stainless steel (430SS) corrosion resistance failure mechanism

Phosphine production in anaerobic wastewater treatment under tetracycline antibiotic pressure

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Journal of Environmental Sciences 2018年第7期30卷 239-250页

作者： Meiqing lu Xiaojun Niu Weiyi Chen Zhu Liang Sheng You Xiaohong gu School of Environment and Energy South China University of Technology Guangzhou 510006 China State Key Laboratory of Lake Science and Environment Nanjing 210008 China School of Environmental Science and Engineering Southern University of Science and TechnologyShenzhen Key Laboratory of Soil and Groundwater Pollution Control Shenzhen 518055 China guangdong Provincial Key Laboratory of Atmospheric Environment and Pollution Control Guangzhou 510640 China China Water Resources Pearl River Planning Surveying & Designing Co. Ltd. Guangzhou 510640 China The Key Lab of Pollution Control and Ecosystem Restoration in Industry Clusters Ministry of EducationSouth China University of Technology Guangzhou Higher Education Mega Centre Guangzhou 510006 China

The influence of tetracycline（TC） antibiotics on phosphine（PH3） production in the anaerobic wastewater treatment was studied. A lab-scale anaerobic baffled reactor with three compartments was employed to simulate this process. The reactor was operated in a TC-absence wastewater and 250 μg/L TC-presence wastewater for three months after a start-up period,respectively. The responses of p H, oxidation–reduction potential（ORP）, chemical oxygen demand（COD）, total phosphorus（TP）, enzymes activity（dehydrogenase and acid phosphatase）,and microbial community were investigated to reveal the effect of TC on PH3 *** suggested that the dehydrogenase（DH） activity, acid phosphatase（ACP） activity and COD have positive relationship with PH3 production, while p H, ORP level and the TP in liquid phase have negative relationship with PH3 production. With prolonged TC exposure, decrease in p H and increase in DH activity are beneficial to PH3 production, while decrease in COD and ACP activity are not the limiting factors for PH3 production.

关键词： Tetracycline antibiotic Anaerobic Wastewater treatment Phosphine production

High energy batteries based on sulfur cathode

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Green Energy & Environment 2019年第4期4卷 345-359页

作者： Jian Zhu Jianli Zou Hua Cheng Yingying gu Zhouguang lu Department of Materials Science&Engineering Southern University of Science and TechnologyShenzhen518055GuangdongPR China College of Chemistry and Chemical Engineering Central South UniversityChangsha 410083HunanPR China

Lithium-ion batteries(LIBs)have become an indispensable part of our daily life,however,the energy and power capability that LIBs can deliver are lagging far behind the ever-increasing demands of portable electronics and electric ***-sulfur batteries as one of the most promising alternatives to LIBs are receiving rapidly growing research interests due to the extremely high energy density and abundant resources of *** this short review,we will discuss the state-of-art development of high energy density battery technologies based on sulfur cathode in combination with different metal anodes,with focus on sodium,magnesium and aluminum *** leave lithium-sulfur batteries out of discussion since there are already a large number of nicely organized review papers *** operation mechanism of various anode materials and the variety of electrolytes used in sulfur batteries will be *** perspectives on improving the performances and overcoming the remaining issues in sulfur batteries will be *** is expected that this review will draw more attention to sulfur batteries from both the academic and industrial communities.

关键词： Metal-sulfur battery Sulfur cathode Electrolytes Energy storage Shuttle effect

An explainable framework for load forecasting of a regional integrated energy system based on coupled features and multi-task learning

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Protection and Control of Modern Power Systems 2022年第1期7卷 349-362页

作者： Kailang Wu Jie gu lu Meng Honglin Wen Jinghuan Ma School of Electronic Information and Electrical Engineering Shanghai Jiao Tong UniversityShanghaiChina

To extract strong correlations between different energy loads and improve the interpretability and accuracy for load forecasting of a regional integrated energy system(RIES),an explainable framework for load forecasting of an RIES is *** includes the load forecasting model of RIES and its interpretation.A coupled feature extracting strat-egy is adopted to construct coupled features between loads as the input variables of the *** is designed based on multi-task learning(MTL)with a long short-term memory(LSTM)model as the sharing *** on SHapley Additive exPlanations(SHAP),this explainable framework combines global and local interpretations to improve the interpretability of load forecasting of the *** addition,an input variable selection strategy based on the global SHAP value is proposed to select input feature variables of the model.A case study is given to verify the effectiveness of the proposed model,constructed coupled features,and input variable selection *** results show that the explainable framework intuitively improves the interpretability of the prediction model.

关键词： Load forecasting Regional integrated energy system Coupled feature SHapley additive exPlanations Interpretability of deep learning

SPT6L Encoding a Putative WG/GW-Repeat Protein Regulates Apical-Basal Polarity of Embryo in Arabidopsis

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Molecular Plant 2012年第1期5卷 249-259页

作者： Xiao-lu gu Hua Wang Hai Huang Xiao-Feng Cui National Laboratory of Plant Molecular Genetics Shanghai Institute of Plant Physiology and EcologyShanghai Institutes for Biological SciencesChineseAcademy of Sciences300 Fenglin RoadShanghai 200032China

In eukaryotes, a protein motif consisting of WG/GW repeats, also called the Argonaute （AGO） hook, is thought to be essential for binding AGO proteins to fulfill their functions in RNA-mediated gene silencing. Although a number of WG/GW-containing proteins have been computationally identified in Arabidopsis, their roles in plant growth and development are unknown. Here, we show that the Arabidopsis Suppressor of Ty insertion 6-like （SPT6L） gene, which encodes a protein with C-terminal WG/GW repeats, plays critical roles in embryonic development. SPT6L is evolutionarily conserved only in vascular plants, with varying numbers of C-terminal WG/GW repeats, which are plant-species specific. spt61 mutants formed embryos with an aberrant apical-basal axis, showing insufficient development of the basal domain and embryonic lethality. Expression domains of the class-Ill homeodomain-leucine zipper （HD-ZIP III） genes PHABULOSA （PHB） and PHAVOluTA （PHV） were expanded in the spt61 embryo. In contrast, the PLETHORA1 （PLT1） gene, which acts antagonistically to the HD-ZIP III genes in specification of basal fate, was severely down-regulated in the spt61 mutant. Furthermore, the phb phv double mutations partially rescued aberrant basal development in the spt61 background and restored PLT1 expression. Collectively, our results indicate that SPT6L is essential for specification of the apical-basal axis, partly by controlling the HD-ZIP III genes in embryos.

关键词： Arabidopsis embryo HD-ZIP ill polarity SPT6L.

Simulation of Corrosion-Induced Cracking of Reinforced Concrete Based on Fracture Phase Field Method

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Computer Modeling in Engineering & Sciences 2024年第3期138卷 2257-2276页

作者： Xiaozhou Xia Changsheng Qin guangda lu Xin gu Qing Zhang College of Mechanics and Materials Hohai UniversityNanjing210098China State Key Laboratory of Disaster Reduction in Civil Engineering&College of Civil Engineering Tongji UniversityShanghai200092China

Accurate simulation of the cracking process caused by rust expansion of reinforced concrete(RC)structures plays an intuitive role in revealing the corrosion-induced failure *** the quasi-brittle fracture of concrete,the fracture phase field driven by the compressive-shear term is constructed and added to the traditional brittle fracture phase field *** rationality of the proposed model is verified by a mixed fracture example under a shear displacement ***,the extended fracture phase model is applied to simulate the corrosion-induced cracking process of *** cracking patterns caused by non-uniform corrosion expansion are discussed for RC specimens with homogeneous macroscopically or heterogeneous with different polygonal aggregate distributions at the mesoscopic ***,the effects of the protective layer on the crack propagation trajectory and cracking resistance are investigated,illustrating that the cracking angle and cracking resistance increase with the increase of the protective layer thickness,consistent with the experimental ***,the corrosion-induced cracking process of concrete specimens with large and small spacing rebars is simulated,and the interaction of multiple corrosion cracking is easily influenced by the reinforcement spacing,which increases with the decrease of the steel bar *** conclusions play an important role in the design of engineering anti-corrosion *** fracture phase field model can provide strong support for the life assessment of RC structures.

关键词： Fracture phase field corrosion-induced cracking non-uniform corrosion expansion protective layer thickness reinforcement concrete