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Moment Redistribution Effect of the Continuous Glass Fiber Reinforced Polymer-Concrete Composite Slabs Based on Static Loading Experiment

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Structural Durability & Health Monitoring 2025年第1期19卷 105-123页

作者： Zhao-Jun Zhang Wen-Wei Wang Jing-Shui Zhen Bo-Cheng Li De-Cheng cai Yang-Yang Du Hui Huang Offshore Oil Engineering Co.Ltd. Tianjin300461China Department of Bridge Engineering School of TransportationSoutheast UniversityNanjing211189China

This study aimed to investigate the moment redistribution in continuous glass fiber reinforced polymer(GFRP)-concrete composite slabs caused by concrete cracking and steel bar yielding in the negative bending moment *** experimental bending moment redistribution test was conducted on continuous GFRP-concrete composite slabs,and a calculation method based on the conjugate beam method was *** composite slabs were formed by combining GFRP profiles with a concrete layer and supported on steel beams to create two-span continuous composite slab *** methods,epoxy resin bonding,and stud connection,were used to connect the composite slabs with the steel *** experimental findings showed that the specimen connected with epoxy resin exhibited two moments redistribution phenomena during the loading process:concrete cracking and steel bar yielding at the internal *** contrast,the composite slab connected with steel beams by studs exhibited only one-moment redistribution phenomenon throughout the loading *** the concrete at the internal support cracked,the bending moment decreased in the internal support section and increased in the midspan *** the steel bars yielded,the bending moment further decreased in the internal support section and increased in the mid-span *** GFRP profiles do not experience cracking,there was no significant decrease in the bending moment of the mid-span *** test specimens experienced compressive failure of concrete at the mid-span *** results showed good agreement between the calculated and experimental values of bending moments in the mid-span section and internal support *** proposed model can effectively predict the moment redistribution behavior of continuous GFRP-concrete composite slabs.

关键词： Moment redistribution GFRP-concrete composite slabs bending moment experimental study analysis model

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A new method to predict fatigue crack growth rate of materials based on average cyclic plasticity strain damage accumulation

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Chinese Journal of Aeronautics 2013年第1期26卷 130-135页

作者： Chen long cai Lixun Yao Di School of Mechanics and Engineering Southwest Jiaotong University

By introducing a fatigue blunting factor, the cyclic elasto-plastic Hutchinson-Rice-Rosengren （HRR） field near the crack tip under the cyclic loading is modified. And, an average damage per loading-cycle in the cyclic plastic deformation region is defined due to Manson-Coffin law. Then, according to the linear damage accumulation theory-Miner law, a new model for predicting the fatigue crack growth （FCG） of the opening mode crack based on the low cycle fatigue （LCF） damage is set up. The step length of crack propagation is assumed to be the size of cyclic plastic zone. It is clear that every parameter of the new model has clearly physical meaning which does not need any human debugging. Based on the LCF test data, the FCG predictions given by the new model are consistent with the FCG test results of Cr2Ni2MoV and X12CrMoWVNbN 10-1-1. What＇s more, referring to the relative researches, the good predictability of the new model is also proved on six kinds of materials.

关键词： Cyclic elasto-plastic HRR field Cyclic plasticity strain damage Fatigue crack growth Low cycle fatigue Miner linear damage accumulation

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Auditory Hopf Amplification Revealed by an Energy Method

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Chinese Physics Letters 2017年第4期34卷 124-127页

作者： Lin Tian Zhang-cai long Colleague of Physics Huazhong University of Science and Technology Wuhan 430074

We report on the auditory Hopf amplification contributed by the electrical energy of the hair cell during its bundle deflecting. An energy method to calculate the active force is adopted according to the electrical energy consumption of the hair cell. After some experimental data was analyzed and simulated, we find that the electrical energy determines the value of the active force and enlarges the mechanical response of the hair bundle. This amplification is controlled by the cell voltage and makes the sensor a Hopf vibrator with hearing nonlinear characteristics. A velocity-dependent active force derived previously from the force-gating channel operation strongly reinforces our conclusion.

关键词： Auditory Hopf Amplification Revealed by an Energy Method

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功能性胆汁酸生物合成及应用研究进展

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食品科学 2025年第1期46卷 255-265页

作者：郑苗常超苏琪蔡成岗逯与运赵敏洁蔡海莺浙江科技学院生物与化学工程学院浙江杭州310023 新加坡国立大学食品科学与工程系新加坡117542 浙江大学生物系统工程与食品科学学院浙江杭州310058 美欣达集团有限公司浙江湖州313002

胆汁酸(bile acid,BA)作为胆汁重要的两性固醇类物质,可通过与受体、肠道菌群的相互作用调节糖脂代谢及稳态、肠道微生态、肠道屏障、炎症、免疫系统和神经系统等生理功能,影响机体代谢和营养健康。本文综述主要新型功能性BA的合成通路... 详细信息

胆汁酸(bile acid,BA)作为胆汁重要的两性固醇类物质,可通过与受体、肠道菌群的相互作用调节糖脂代谢及稳态、肠道微生态、肠道屏障、炎症、免疫系统和神经系统等生理功能,影响机体代谢和营养健康。本文综述主要新型功能性BA的合成通路,系统总结主要功能性BA的功能活性、化学合成和生物转化研究进展。此外,归纳新型BA(异脱氧胆酸、异石胆酸、异别脱氧胆酸、异别石胆酸)功能性研究,以及新型BA生物转化酶的微生物来源、催化性质及其应用于BA合成的潜力。展望功能性BA在食品和医药等领域的应用潜力,为新型功能性BA的合成转化及综合应用提供一定参考。

关键词：胆汁酸功能性生物转化羟基类固醇脱氢酶应用

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Emergence of Community Structure in the Adaptive Social Networks

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Communications in Computational Physics 2010年第9期8卷 835-844页

作者： long Guo Xu cai Complexity Science Center and Institute of Particle Physics Huazhong(Central China)Normal UniversityWuhan430079China

In this paper,we propose a simple model of opinion dynamics to construct social networks,based on the algorithm of link rewiring of local attachment(RLA)and global attachment(RGA).Generality,the system does reach a steady state where all individuals'opinion and the complex network structure are *** RGA enhances the ability of consensus of opinion ***,by tuning a model parameter p,which governs the proportion of RLA and RGA,we find the formation of hierarchical structure in the social networks for p>p_(c).Here,p_(c) is related to the complex network size N and the minimal coordination number *** model also reproduces many features of large social networks,including the“weak links”property.

关键词： Opinion dynamics social network community structure weak links property

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Mission scheduling of multi-sensor collaborative observation for space surveillance network

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Journal of Systems Engineering and Electronics 2023年第4期34卷 906-923页

作者： long Xi cai Weiwei YANG Leping WANG Tianyu College of Aerospace Science and Engineering National University of Defense TechnologyChangsha 410073China School of Traffic and Transportation Engineering Central South UniversityChangsha 410073China

With increased dependence on space assets,scheduling and tasking of the space surveillance network(SSN)are vitally *** multi-sensor collaborative observation scheduling(MCOS)problem is a multi-constraint and high-conflict complex combinatorial optimization problem that is nondeterministic polynomial(NP)-*** research establishes a sub-time window constraint satisfaction problem(STWCSP)model with the objective of maximizing observation *** the significant effect of genetic algorithms(GA)on solving the problem of resource allocation,an evolution heuristic(EH)algorithm containing three strategies that focus on the MCOS problem is *** each case,a task scheduling sequence is first obtained via an improved GA with penalty(GAPE)algorithm,and then a mission planning algorithm(heuristic rule)is used to determine the specific observation *** to the model without sub-time windows and some other algorithms,a series of experiments illustrate the STWCSP model has better performance in terms of total *** about strategy and parameter sensitivity validate its excellent performance in terms of EH algorithms.

关键词： multi-sensor observation resource scheduling subtime window evolution heuristic algorithm

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Surrounding Objects Detection and Tracking for Autonomous Driving Using LiDAR and Radar Fusion

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Chinese Journal of Mechanical Engineering 2021年第5期34卷 69-80页

作者： Ze Liu Yingfeng cai Hai Wang long Chen Automotive Engineering Research Institute Jiangsu UniversityZhenjiang 212013China School of Automotive and Traffic Engineering Jiangsu UniversityZhenjiang 212013China

Radar and LiDAR are two environmental sensors commonly used in autonomous vehicles,Lidars are accurate in determining objects’positions but significantly less accurate as Radars on measuring their ***,Radars relative to Lidars are more accurate on measuring objects velocities but less accurate on determining their positions as they have a lower spatial *** order to compensate for the low detection accuracy,incomplete target attributes and poor environmental adaptability of single sensors such as Radar and LiDAR,in this paper,an effective method for high-precision detection and tracking of surrounding targets of autonomous *** employing the Unscented Kalman Filter,Radar and LiDAR information is effectively fused to achieve high-precision detection of the position and speed information of targets around the autonomous ***,the real vehicle test under various driving environment scenarios is carried *** experimental results show that the proposed sensor fusion method can effectively detect and track the vehicle peripheral targets with high *** with a single sensor,it has obvious advantages and can improve the intelligence level of autonomous cars.

关键词： Autonomous vehicle Radar and LiDAR information fusion Unscented Kalman filter Target detection and tracking

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Duodenal ulcer caused by coil wiggle after digital subtraction angiography-guided embolization: A case report

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World Journal of Clinical Cases 2021年第33期9卷 10315-10322页

作者： Sheng Xu Shou-Xing Yang Zhan-Xiong Xue chang-long Xu Zhen-Zhai cai chang-Zhao Xu Department of Gastroenterology The Second Affiliated Hospital and Yuying Children’s Hospital of Wenzhou Medical UniversityWenzhou 325000Zhejiang ProvinceChina

BACKGROUND Acute gastrointestinal bleeding(GIB)is a life-threatening medical emergency with high morbidity and *** embolization with endovascular coils under digital subtraction angiography guidance is a common and effective method for the treatment of GIB with high technical success *** ulcers caused by coils wiggled from the branch of the gastroduodenal artery,which is a rare complication,have not previously been reported in a patient with right intrathoracic *** SUMMARY A 62-year-old man had undergone thoracoscopy-assisted radical resection of esophageal cancer and gastroesophageal anastomosis 3 years ago,resulting in right intrathoracic *** was admitted to the hospital 15 mo ago for dizziness and suffered acute GIB during his *** surgery was urgently performed to embolize the branch of the gastroduodenal artery with endovascular *** 15 mo,the patient was re-admitted with a chief complaint of melena for 2 d,esophagogastroduodenoscopy and abdominal computed tomography revealed that some endovascular coils had migrated into the duodenal bulb,leading to a deep *** was controlled after conservative *** months later,duodenal balloon dilatation was performed to relieve the stenosis after the removal of a few coils,and the patient was safely discharged with only one coil retained in the duodenum due to difficulties in complete removal and risk of *** melena recurred once during the long-term *** Although rare,coil wiggle after interventional therapy requires careful attention,effective precautionary measures,and more secure alternative treatment methods.

关键词： Digital subtraction angiography Endoscopy Esophageal neoplasms Gastrointestinal hemorrhage Duodenal ulcer Case report

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Counting Rooted Unicursal Planar Maps

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Acta Mathematicae Applicatae Sinica 2013年第4期29卷 749-764页

作者： Shu-de long Jun-liang cai Department of Mathematics Chongqing University of Arts and Sciences School of Mathematical Sciences Beijing Normal University

This paper investigates the number of rooted unicursal planar maps and presents some formulae for such maps with four parameters： the numbers of nonrooted vertices and inner faces and the valencies of two odd vertices.

关键词： unicursal planar map enumerating function functional equation Lagrangian inversion

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Counting Rooted 4-regular Unicursal Planar Maps

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Acta Mathematicae Applicatae Sinica 2017年第4期33卷 909-918页

作者： Shu-de long Jun-liang cai Department of Mathematics Chongqing University of Arts and Sciences School of Mathematical Sciences Beijing Normal University

A map is 4-regular unicursal if all its vertices are 4-valent except two odd-valent vertices. This paper investigates the number of rooted 4-regular unicursal planar maps and presents some formulae for such maps with ... 详细信息

关键词： unicursal planar map enumerating function functional equation Lagrangian inversion

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