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Multi-step Reinforcement Learning Algorithm of Mobile Robot Path Planning Based on Virtual Potential Field

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国际计算机前沿大会会议论文集 2017年第2期 123-125页

作者： jun Liu Wei Qi Xu lu School of Automation Guangdong Polytechnic Normal UniversityGuangzhou 510665 China

A algorithm of dynamic multi-step reinforcement learning based on virtual potential field path planning is proposed in this paper. Firstly, it is constructed the virtual potential field according to the known information. And then in view of Q learning algorithm of the QekT algorithm, a multi-step reinforcement learning algorithm is proposed in this paper. It can update current Q value used of future dynamic k steps according to the current environment status. At the same time, the convergence is analyzed. Finally the simulation experiments are done. It shows that the proposed algorithm and convergence and so on are more efficiency than similar algorithms.

关键词： Robot Path planning Machine learning Learning Virtual potential field

Latest developments in EUV photoresist evaluation capability at Shanghai Synchrotron Radiation Facility

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Nuclear Science and Techniques 2023年第12期34卷 206-215页

作者： Zhen‑Jiang Li Cheng‑Hang Qi Bei‑Ning Li Shu‑Min Yang jun Zhao Zhi‑Di Lei Shi‑Jie Zhu Hao Shi lu Wang Yan‑Qing Wu Ren‑Zhong Tai Shanghai Institute of Applied Physics Chinese Academy of SciencesShanghai 201800China University of Chinese Academy of Sciences Beijing 100049China Shanghai Synchrotron Radiation Facility Shanghai 201204China ShanghaiTech University Shanghai 201210China Key Laboratory of Materials for High Power Lasers Shanghai Institute of Optics and Fine MechanicsChinese Academy of SciencesShanghai 201800China College of Materials Science and Opto‑Electronic Technology University of Chinese Academy of SciencesBeijing 100083China Shanghai University Shanghai 200444China

Evaluating the comprehensive characteristics of extreme ultraviolet(EUV)photoresists is crucial for their application in EUV lithography,a key process in modern *** paper highlights the capabilities of the Shanghai Synchrotron Radiation Facility(SSRF)08U1B beamline in advancing this ***,it demonstrates how this beamline can create fringe patterns with a 15-nm half-pitch on a resist using synchrotron-based EUV *** achievement is vital for evaluating EUV photoresists at the advanced 5-nm *** provide a detailed introduction to the methods and experimental setup used at the SSRF 08U1B beamline to assess an EUV photoresist.A significant part of this research involved the fabrication of high-resolution hydrogen silsesquioxane mask *** gratings,with an aspect ratio of approximately 3,were created using electron beam lithography on an innovative mask *** framework was crucial in eliminating the impact of zeroth-order light on interference *** proposed framework propose offers a new approach to mask fabrication,particularly beneficial for achromatic Talbot lithography and multicoherent-beam interference applications.

关键词： Extreme ultraviolet photoresist Interference lithography High-resolution Electron beam lithography·Hydrogen silsesquioxane Grating

Studies on Silicon-Containing Fragrance Raw Materials( Ⅱ )——Syntheses and Odors of 4-Trimethylsilylcyclohex-3-enol and 4-Trimethylsilylcyclohexanol Derivatives

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Chemical Research in Chinese Universities 1993年第2期9卷 121-126页

作者： TANG Shi-xiong, XUE Jie-you, WU jun-jun, CAO Yu-rongZHI Jin-fang WANG Xiao-lan (Department of Chemistry, Nankai University, Tianjin, 300071)

1-Substituted- 4-trimethylsilylcyclohex- 3-enol and 1-substituted- 4-trimetnylsilyl-cyclohexanol, 4-trimethylsilylcyclohex-3-enol and 4-trimethylsilylcyclohexanol, and some of their esters and carbon counterparts were synthesized. Structures of the nineteen new compounds were determined by 1H NMR, IR and MS. Their odors are evaluated.

关键词： Silicon-containing fragrance raw materials Syntheses Odor evaluation

Image Reconstruction with Perturbed Trajectories in a C-Arm CT System

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Chinese Journal of Biomedical Engineering(English Edition) 2015年第3期24卷 120-127页

作者： XU Ming PU fang LI Shu-yu NIU Hai-jun FAN Yu-bo LI De-yu School of Biological Science and Medical Engineering Beihang University

For a 3D C-arm computed tomography(CT) system, actual path of the scanner may deviate from the idea circle geometry because of mechanicalinstability,leading to perturbation artifacts in reconstructed images. In this paper, we proposed a modified FBP method for the perturbed trajectories taking into account 6 perturbation parameters without tassuming any condition to be ideal. The preliminary studies demonstrated that this algorithm can acquire promising reconstruction image quality even when the perturbations are relatively large. The comparison of performances among different perturbation parameters is useful for constructing a C-arm CT system.

关键词： C-arm CT system trajectory deviation FBP

Circumcision with ＂no-flip Shang Ring＂ and ＂Dorsal Slit＂ methods for adult males： a single-centered, prospective, clinical study

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Asian Journal of Andrology 2016年第5期18卷 798-802页

作者： jun-Hao Lei Liang-Ren Liu Qiang Wei Wen-Ben Xue Tu-Run Song Shi-Bing Yan lu Yang Ping Han Yu-Chun Zhu Department of Urology West China Hospital Sichuan University Chengdu China Department of Urology Dujiangyan Medical Center/The Affiliated Hospital of ChengduUniversity Dujiangyan China

This paper was aimed to compare the clinical effectiveness and safety of adult male circumcision using the Shang RingTM （SR） with the no-flip technique compared with Dorsal Slit （DS） surgical method, A single-centered, prospective study was conducted at the West China Hospital, where patients were circumcised using the no-flip SR （n = 408） or the DS （n = 94） procedure. The adverse events （AEs） and satisfaction were recorded for both groups, and ring-removal time and percentage of delayed removals were recorded for the SR group. Finally, complete follow-up data were collected for 76.1% of patients （SR： n = 306; DS： n = 76）. The average ring-removal time for the SR group was 17.62 ± 6.30 days. The operation time （P 〈 0.001）, pain scores during the procedure （P 〈 0.001） and at 24 h postoperatively （P 〈 0.001）, bleeding （P = 0.001）, infection （P = 0.034）, and satisfaction with penile appearance （P 〈 0.001） in the SR group were superior to those in the DS group. After two postoperative weeks, the percentage of patients with edema in the SR group （P = 0.029） was higher but no differences were found at 4 weeks （P = 0, 185） between the two groups. In conclusions, the no-flip SR method was found to be superior to the DS method for its short operation time （〈5 min）, involving less pain, bleeding, infection, and resulting in a satisfactory appearance. However, the time for recovery from edema took longer, and patients may wear device for 2-3 weeks after the procedure.

关键词： Chinese Shang Ring circumcision Dorsal Slit phimosis redundant prepuce

Molecular Characterization of Arbuscular Mycorrhizal Symbiosis for Defense,Nutrient Absorption and Secondary Metabolism in Plants

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茶叶 2013年第4期39卷 247-258页

作者： fang-Yuan Fan Yuan-Hua Li Jian-Liang lu Zhejiang university Tea Research Institute Tea and food college of Wuyi University

Arbscular mycorrhiza(AM),a symbiosis between plants and members of fungi Glomeromycota,improves the resistance,nutrition and material metabolism of *** generated by symbiotic development,is the main site of nutrient exchange and genetic material recombination,resulting in physiological changes and gene expression *** regulates pathogenesis-related protein(PRs) genes and antioxidant enzyme genes against biotic and abiotic *** exchange induced by AM is directly involved in uptake,transformation and utilization of nutrient elements in ***,transporter genes play an important role in phosphate,nitrogen and carbon *** AM interactions,phosphate transporter(PT) genes,from both arbuscular mycorrhizal fungi and plant root,are induced and there product promote phosphate acquisition;increasing expression of ammonium transporter(AMT) genes and arginine biosynthesis/degradation enzyme genes is in charge of nitrogen acquisition;and promotion mechanism of carbon acquisition is involved in up-regulation of sugar transporter *** addition,secondary metabolites,functioned as signal moleculars and defense compounds,are increased with development of AM symbiont by up-regulating related synthetic genes based on different promotion *** together,molecular regulation of plant and arbuscular mycorrhizal fungi,induced by infection process,stimulate plant nutrient acquisition and resist to biotic/abiotic stress.

关键词：植物次生代谢养分吸收菌根共生分子鉴定磷酸盐转运蛋白基因表达调控丛枝菌根真菌非生物胁迫

A review on the high energy oxidizer ammonium dinitramide:Its synthesis,thermal decomposition,hygroscopicity,and application in energetic materials

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Defence Technology（防务技术） 2023年第1期19卷 163-195页

作者： Fu-yao Chen Chun-lei Xuan Qiang-qiang lu Lei Xiao jun-qing Yang Yu-bing Hu Guang-Pu Zhang Ying-lei Wang Feng-qi Zhao Ga-zi Hao Wei Jiang National Special Superfine Powder Engineering Technology Research Center Nanjing University of Science and TechnologyNanjingChina Xi'an Modern Chemistry Research Institute Xi'anChina

Ammonium dinitramide(ADN)is considered as a potential substitute for ammonium perchlorate in energetic materials due to its high density,positive oxygen balance,and halogen-free ***,its application has been severely limited because of its strong hygroscopicity,difficult storage,and incompatibility with isocyanate curing *** order to better bloom the advantages of the highly energetic and environment-friendly ADN in the fields of energetic materials,an in-depth analysis of the current situation and discussion of key research points are particularly *** this paper,a detailed overview on the synthesis,thermal decomposition,hygroscopic mechanism,and antihygroscopicity of ADN has been discussed,its application in powdes and explosives are also presented,and its future research directions are proposed.

关键词： Ammonium dinitramide High energy oxidizer Synthesis Properties Applications

A Molecularly Imprinted Polymer Sensor Based on the Electropolymerization of p-Aminothiophenol-Functionalized Au Nanoparticles Electrode for the Detection of Nonylphenol

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Biomedical and Environmental Sciences 2020年第11期33卷 887-891页

作者： KOU Jing lu Li Li FAN Zhao Yu HAN Yi Qun ZHOU Run Zhe XIA Ying Zhao LYU fang Zhi ZHANG Xiu Jaffrezic-Renault NICOLE GUO Zhen Zhong Hubei Province Key Laboratory of Occupational Hazard Identification and Control Medical CollegeWuhan University of Science and TechnologyWuhan 430065P.R.China New Medicine Innovation and Development Institute Hubei Province Key Laboratory of Occupational Hazard Identification and ControlMedical CollegeWuhan University of Science and TechnologyWuhan430065PR China School of Public Health Tongji Medical CollegeHuazhong University of Science and TechnologyWuahn430030PR China University of Lyon Institute of Analytical SciencesUMR-CNRS 52805La Doua StreetVilleurbanne 69100Frane

Endocrine disruptors(EDCs),also known as Environmental Hormones(EHs),refer to substances in the environment that interfere with the endocrine systems of humans and *** substances can lead to genital disorders in humans and animals[1].Nonylphenol(Nph)is a kind of relatively distributed substance of *** is the metabolite of nonylphenol polyethoxy and an important fine chemical,raw material,and intermedium[2]。

关键词： phenol Molecular polymerization

Altered integrity of hepatocyte tight junctions in rats with triptolide-induced cholestasis

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Chinese Journal of Natural Medicines 2021年第3期19卷 188-194页

作者： HUANG Shan LIU Li MEI Hui-fang ZHANG Qian-Wen ZHANG Xi XU Xiao-Ting WANG Xin-Zhi HUANG Xin WANG Tao JIANG Zhen-Zhou ZHANG lu-Yong SUN Li-Xin Jiangsu Key Laboratory of Drug Screening China Pharmaceutical UniversityNanjing 210009China Center for Drug Research and Development Guangdong Pharmaceutical UniversityGuangzhou 510006China Jiangsu Center for Pharmacodynamics Research and Evaluation China Pharmaceutical UniversityNanjing 210009China Changde Vocational Technology College Changde 415000China

Triptolide(TP),an active component of Tripterygium wilfordii Hook.f.(TWHF),has been widely used for centuries as a traditional Chinese ***,the clinical application of TP has been restricted due to multitarget toxicity,such as *** this study,28 days of oral TP administration(100,200,or 400μg·kg^(-1)·d^(-1))induced the occurrence of cholestasis in female Wistar rats,as evidenced by increased serum levels ofγ-glutamyl transpeptidase(γ-GGT),alkaline phosphatase(ALP)and hepatic total bile acids(TBAs).In addition,the heptocyte polarity associated with the strcture of tight junctions(TJs)was disrupted in both rats and sandwich-cultured primary *** revealed decreased expression of the TJ-associated proteins occludin,claudin^(-1),and zonula occludens protein(ZO^(-1)),and downregulated m RNA levels of these TJs was also detected by real-time *** immunofluorescence analysis showed abnormal subcellular localization of occludin,claudin^(-1) and ZO^(-1),which was also confirmed by transmission electron ***,the concentration of FITC-dextran,a marker of paracellular penetration,was found to increase rapidly in bile increased rapidly(within 6 minutes)after treatment with TP,which indicated the functional impairment of *** together,these results suggest that the administration of TP for 28 consecutive days to rats could induce cholestatic injury in the liver,and the increased paracellular permeability might play an important role in these pathological changes.

关键词： Triptolide Cholestatic injury Tight junction Sandwich-cultured primary hepatocytes