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Deep Reinforcement Learning Based Truck Eco-Driving in Mixed Traffic Utilizing Terrain Information

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Deep Reinforcement Learning Based Truck Eco-Driving in Mixed...

Free Completely J^(e)-simple Semigroups

2021中国汽车工程学会年会暨展览会

作者： Li Tingjun Xu nan guo Konghui The State Key Laboratory of Automotive Simulation and Control

Eco-driving methods for vehicles,especially heavy-duty truck is widely *** of such methods is to anticipate the terrain of the road and determine an energy-efficient speed ***,the car-following process of the ego truck in mixed traffic will interfere with the *** optimization methods were used to deal with this *** this is limited by its heavy online computation *** contribution is that we propose GO-MPR-PPO（Generated Observation,Model Predicted Reward,Proximal Policy Optimization） to develop a deep reinforcement learning controller to simultaneously stabilize the traffic and utilize the terrain *** is adopted to apply reinforcement learning in an interactive traffic environment,while FASTSim is used to evaluate the fuel consumption of a class-8 *** speed controller for the connected automated truck is trained in a virtual environment of a ring road with known terrain information and other human *** it is applied to a ring road another terrain with different numbers of human-driven vehicles to simulate different penetration and analyze *** energy efficiency of its simulation trace is compared with the default algorithm in *** improvement of 43 percent is observed with the proposed controller in an unseen critical scenario with more traditional ***,its ability to stabilize the traffic in low penetration is sacrificed,with a 1.2～9 percent decrease in the scenario with less traditional vehicles.

关键词： eco-driving car-following deep reinforcement learning truck mixed traffic

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Acta Mathematica Sinica,English Series 2015年第7期31卷 1086-1096页

作者： Jun Ying guo Xiao Jiang guo Juan Ying DING Department of Mathematics Jiangxi Normal University

A semigroup is called completely J（e）-simple if it is isomorphic to some Rees matrix semi- group over a left cancellative monoid and each entry of whose sandwich matrix is in the group of units of the left cancellative monoid. It is proved that completely J（e）-simple semigroups form a quasivarity. Moreover, the construction of free completely J（e）simple semigroups is given. It is found that a free completely J（e）-simple semigroup is just a free completely J＊-simple semigroup and also a full subsemigroup of some completely simple semigroups.

关键词： Strongly rpp semigroup free semigroup completely J(e)-simple semigroup quasivariety

Numerical simulation of nitrogen injection of goaf in fire prevention based on Finite Volume Method

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Journal of Coal Science & Engineering(China) 2013年第3期19卷 363-368页

作者： wei LIU Yue-Ping QIN guo-Yu ZHANG Yong-Jiang HAO Huai-Tao SONG Faculty of Resources & Safety Engineering China University of Mining & Technology (Beijing) Beijing 100083 China

The numerical simulation is used to research the influence of nitrogen injection on spontaneous combustion in goaf. The spontaneous combustion mathematical model on the coupling of air flow field, oxygen concentration field, and residual coal temperature field was established with nitrogen injection in goat＇. Then the software of numerical computation was pro- grammed by Finite Volume Method. Combined with the example, the distributions of air flow field, oxygen concentration field and residual coal temperature field at different nitrogen injection volume were obtained by the software. The results show that the nitrogen injection could effectively prevent the spontaneous combustion fire in goaf and the highest temperature in goaf decreased with the nitrogen injection volume increasing. Finally, the accuracy of the numerical simulation was verified by the temperature observation in field. The achievement of this research is of theoretical and practical significance for the prevention of coal spontaneous combustion in goaf.

关键词： goal spontaneous combustion numerical simulation nitrogen injection

Some progress in spectral methods Dedicated to Professor Shi Zhong-Ci on the Occasion of his 80th Birthday

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Science China Mathematics 2013年第12期56卷 2411-2438页

作者： guo BenYu Department of Mathematics Shanghai Normal University Scientific Computing Key Laboratory of Shanghai Universities Division of Computational Science E-institute of Shanghai Universities

In this paper, we review some results on the spectral methods. We first consider the Jacobi spectral method and the generalized Jacobi spectral method for various problems, including degenerated and singular differential equations. Then we present the generalized Jacobi quasi-orthogonal approximation and its applica- tions to the spectral element methods for high order problems with mixed inhomogeneous boundary conditions. We also discuss the related spectral methods for non-rectangular domains and the irrational spectral methods for unbounded domains. Next, we consider the Hermite spectral method and the generalized Hermite spec- tral method with their applications. Finally, we consider the Laguerre spectral method and the generalized Laguerre spectral method for many problems defined on unbounded domains. We also present the generalized Laguerre quasi-orthogonal approximation and its applications to certain problems of non-standard type and exterior problems.

关键词： Jacobi Hermite and Laguerre spectral approximations Jacobi and Laguerre quasi-orthogonalapproximations spectral and spectral element methods degenerated and singular problems problems on non-rectangular and unbounded domains problems of non-standard type exterior problems

Microstructure and mechanical properties of the joint of 6061 aluminum alloy by plasma-MIG hybrid welding

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China Welding 2017年第2期26卷 58-64页

作者： Wang Yujing wei Bo guo Yangyang Liu Zheng Pan Houhong School of Materials Science and Engineering Southwest Jiaotong University

Plasma-MIG {metal inert gas arc welding） hybrid welding of aluminum alloy with 6 mm thickness using ER5356 welding wire was carried out. The microstructures and mechanical properties of the welded joint were investigated by optical microscopy, X-ray diffraction （XRD） , energy dispersive spectroscopy （EDS） , tensile test, hardness test and scanning electron microscope （ SEM） were used to judge the type of tensile fracture. The results showed that the tensile strength of welded joint was 142 MPa which was 53. 6% o f the strength o f the base metal. The welding seam zone was characterized by dendritic structure. In the fusion zone, the columnar grains existed at one side of the welding seam. The fibrous organization was found in the base metal, and also in the heat affected zone （HAZ） where the recrystallization occurred. The HAZ was the weakest position of the welded joint due to the coarsening of Mg2Si phase. The type of tensile fracture was ductile fracture.

关键词： plasma-MIG,hybrid welding aluminum alloy microstructure mechanical property

Anisotropy-free arrayed waveguide gratings on X-cut thin film lithium niobate platform of in-plane anisotropy

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Light(Science & Applications) 2024年第7期13卷 1416-1426页

作者： Junjie Yi Changjian guo Ziliang Ruan Gengxin Chen Haiqiang wei Liwang Lu Shengqi Gong Xiaofu Pan Xiaowan Shen Xiaowei Guan Daoxin Dai Kangping Zhong Liu Liu State Key Laboratory of Extreme Photonics and Instrumentation College of Optical Science and EngineeringInternational Research Center for Advanced PhotonicsZhejiang UniversityHangzhou 310058China. Guangdong Provincial Key Laboratory of Optical Information Materials and Technology South China Academy of Advanced OptoelectronicsSouth China Normal UniversityHigher-Education Mega-CenterGuangzhou 510006China. National Center for International Research on Green Optoelectronics South China Normal UniversityGuangzhou 510006China Photonics Research Institute Department of Electrical and Electronic EngineeringThe Hong Kong Polytechnic UniversityHung HomKowloonHong Kong(SAR)China. Jiaxing Key Laboratory of Photonic Sensing&Intelligent Imaging Intelligent Optics&Photonics Research CenterJiaxing Research Institute Zhejiang UniversityJiaxing 314000China

Arrayed waveguide grating is a versatile and scalable integrated light dispersion device,which has been widely adopted in various applications,including,optical communications and optical ***,thin-film lithium niobate emerges as a promising photonic integration platform,due to its ability of shrinking largely the size of typical lithium niobate based optical *** would also enable multifunctional photonic integrated chips on a single lithium niobate ***,due to the intrinsic anisotropy of the material,to build an arrayed waveguide grating on X-cut thin-film lithium niobate has never been ***,a universal strategy to design anisotropyfree dispersive components on a uniaxial in-plane anisotropic photonic integration platform is introduced for the first *** leads to the first implementation of arrayed waveguide gratings on X-cut thin-film lithium niobate with various configurations and *** best insertion loss of 2.4 dB and crosstalk of−24.1 dB is obtained for the fabricated arrayed waveguide grating *** of such arrayed waveguide gratings as a wavelength router and in a wavelength-division multiplexed optical transmission system are also demonstrated.

关键词： waveguide arrayed lithium

nanosensitizers for sonodynamic therapy for glioblastoma multiforme: current progress and future perspectives

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Military Medical Research 2023年第1期10卷 94-112页

作者： Qing-Long guo Xing-Liang Dai Meng-Yuan Yin Hong-wei Cheng Hai-Sheng Qian Hua Wang Dao-Ming Zhu Xian-Wen Wang School of Biomedical Engineering Research and Engineering Center of Biomedical MaterialsAnhui Medical UniversityHefei 230032China Department of Neurosurgery the First Affiliated Hospital of Anhui Medical UniversityHefei 230032China Department of Oncology the First Affiliated Hospital of Anhui Medical UniversityHefei 230032China Department of General Surgery and Guangdong Provincial Key Laboratory of Precision Medicine for Gastrointestinal Tumor Nanfang Hospitalthe First School of Clinical MedicineSouthern Medical UniversityGuangzhou 510515China

Glioblastoma multiforme(GBM) is the most common primary malignant brain tumor, and it is associated with poor prognosis. Its characteristics of being highly invasive and undergoing heterogeneous genetic mutation, as well as the presence of the blood–brain barrier(BBB), have reduced the efficacy of GBM treatment. The emergence of a novel therapeutic method, namely, sonodynamic therapy(SDT), provides a promising strategy for eradicating tumors via activated sonosensitizers coupled with low-intensity ultrasound. SDT can provide tumor killing effects for deep-seated tumors, such as brain tumors. However, conventional sonosensitizers cannot effectively reach the tumor region and kill additional tumor cells, especially brain tumor cells. Efforts should be made to develop a method to help therapeutic agents pass through the BBB and accumulate in brain tumors. With the development of novel multifunctional nanosensitizers and newly emerging combination strategies, the killing ability and selectivity of SDT have greatly improved and are accompanied with fewer side effects. In this review, we systematically summarize the findings of previous studies on SDT for GBM, with a focus on recent developments and promising directions for future research.

关键词： Glioblastoma multiforme(GBM) Blood–brain barrier(BBB) Sonodynamic therapy(SDT) Sonosensitizers Combination therapy

Expression of miR-1304 in patients with esophageal carcinoma and risk factors for recurrence

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World Journal of Gastroenterology 2020年第6期26卷 670-685页

作者： Yun-Gang Luo Li-wei Duan Xuan Ji Wen-Yuan Jia Yun Liu Mao-Lei Sun guo-Min Liu Jilin Provincial Medicine Anti-Tumor Engineering Center the Second Hospital of Jilin UniversityChangchun 130041Jilin ProvinceChina Department of Stomatology the Second Hospital of Jilin UniversityChangchun 130041Jilin ProvinceChina Department of Gastroenterology the Second Hospital of Jilin UniversityChangchun 130041Jilin ProvinceChina Department of Orthopedics the Second Hospital of Jilin UniversityChangchun 130041Jilin ProvinceChina

BACKGROUND Esophageal carcinoma is a malignant gastrointestinal tumor with a very poor ***(miR)-1304 is a newly discovered non-coding RNA,which shows differential expression in other cancers,and its clinical value in esophageal carcinoma remains *** To explore the expression of miR-1304 in patients with esophageal carcinoma and its clinical *** The expression of miR-1304 in patients with esophageal carcinoma was analyzed based on the data on miR in esophageal carcinoma downloaded from The Cancer Genome Atlas *** real-time polymerase chain reaction was adopted to determine the expression of miR-1304 in the tissues and serum of *** clinical diagnostic value of miR-1304 and independent factors for recurrence and prognosis of esophageal carcinoma were then *** potential target genes of miR-1304 were predicted,and then analyzed based on gene ontology,Kyoto Encyclopedia of Genes,and Genomes,and protein-protein *** The expression of miR-1304 in the tissues and serum of patients with esophageal carcinoma increased,and was also increased according to the *** with high expression of miR-1304 suffered increased rates of tumor≥3 cm,low differentiation and stage II+***-1304 had a diagnostic value in identifying esophageal carcinoma,tumor size,differentiation and TNM *** size,differentiation,TNM stage,and miR-1304 were independent risk factors for recurrence of esophageal carcinoma,and they had certain predictive and diagnostic value for the recurrence of esophageal ***-eight patients showed a 3-year survival rate of 38.46%,and patients with high expression of miR-1304 had a relatively lower survival *** analysis revealed that tumor size,differentiation,recurrence and miR-1304 were independent factors for the prognosis of ***,miRDB,and Targetscan predicted 20 target genes in *** ontology enrichment analysis found 18 func

关键词： miR-1304 Recurrence Prognosis Diagnosis Bioinformatics analysis The Cancer Genome Atlas Esophageal carcinoma

McKay quivers and absolute n-complete algebras

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Science China Mathematics 2013年第8期56卷 1607-1618页

作者： guo JinYun College of Mathematics and Computer Science Key Laboratory of High Performance Computing and Stochastic Information ProcessingMinistry of EducationHunan Normal University

In this paper,we show that the McKay quiver of a finite subgroup of a general linear group is a regular covering of the McKay quiver of its intersection with the special linear *** this and our results on "returning arrows" in McKay quiver,we give an algorithm to construct the McKay quiver of a finite abelian *** this construction,we show how the cone and cylinder of an(n-1)-Auslander absolute n-complete algebra are truncated from the McKay quivers of abelian groups.

关键词： McKay quiver Nakayama translation absolute n-complete algebra