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Autonomous battery-changing system for UAV's lifelong flight

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Biomimetic Intelligence & Robotics 2023年第2期3卷 41-50页

作者： Jiyang Chen Wenxi Li Yingting Sha Yinchuan Wang zhenqiang zhang Shikuan Li Chaoqun Wang Sile Ma Institute of Marine Science and Technology Shandong UniversityQingdao 266237China Shandong Zhengzhong Information Technology Co. LtdJinan 250098China School of Control Science and Engineering Shandong UniversityJinan 250061China Shandong Digital Applied Science Research Institute Co. LTDJinan 250101China

Unmanned aerial vehicles(UAVs)lifelong flight is essential to accomplish various tasks,e.g.,aerial patrol,aerial rescue,***,traditional UAVs have limited power to sustain their flight and need skilled operators manually control their charging *** and users are eagerly seeking a reliable autonomous battery-changing *** address this need,we propose and design an autonomous battery-changing system for UAVs using the theory of inventive problem solving(TRIZ)and user-centered design(UCD)*** practical application,we employ UCD to thoroughly analyze user requirements,identify multiple pairs of technical contradictions,and solve these inconsistencies using TRIZ ***,we design an autonomous battery-changing hardware system that meets user requirements and realizes the battery change process after the automatic landing of ***,we conduct experiments to validate our system’s *** experimental results show that our battery-changing system can implement the autonomous battery-changing task,and our system has high efficiency and robustness in the real environment.

关键词： Autonomous battery-changing Autonomous navigation Lifelong flight

Valves replacement operation in treatment of electrical storm induced by rheumatic valves disease

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Journal of Nanjing Medical University 2007年第3期21卷 196-199页

作者： zhenqiang Chen Hui zhang Yang Zhao Haiji Yang Sheng＇ai Ye Liang Cheng Ying zhang Department of Cardio-thoracic Surgery the Traditional Chinese Medicine Hospital of Jiangsu Province Nanfing 210029 China

Objective： To present a case of electrical storm （ES） in a female patient with rheumatic valve disease. Methods： A female patient with severe rheumatic valve disease suffered an unexpected ES. She received more than 50 electrical shocks for repeated cardiac arrests due to ES over 16 hours. Then she received beta-blocking agent treatment and had an operation of double valves replacement. Results： ES was suppressed by sympathetic blockade with beta-receptor blocker and finally disappeared after the double pathological valves had been replaced. Conclusion： Increased sympathetic activity plays an important role in the genesis of electrical storm and sympathetic blockade may effectively suppress ES. However, the most important thing in the treatment of ES is to identify and eliminate the underlying cause of ES.

关键词： electrical storm rheumatic valve disease sympathetic activity

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脱贫攻坚题材小说的美学追求与反思

中国文学研究 2021年第3期 161-168页

作者：江腊生张振强江西师范大学文学院江西南昌330022

乡村振兴战略的实施改变了乡村生活的状态,也带来了乡土小说人物建构、叙事伦理等层面的突破。这些脱贫攻坚题材小说中,人物表现既有时代话语的建构,又富有个体生命的质感。乡土日常的生活图景呈现诗意化和乡愁化。小说沉入乡村生活的... 详细信息

乡村振兴战略的实施改变了乡村生活的状态,也带来了乡土小说人物建构、叙事伦理等层面的突破。这些脱贫攻坚题材小说中,人物表现既有时代话语的建构,又富有个体生命的质感。乡土日常的生活图景呈现诗意化和乡愁化。小说沉入乡村生活的内在肌理,在城乡互融的视野中深度开掘乡村精神的现场,体现了叙述话语的多重建构。同时,也应该看到,这些乡村脱贫攻坚题材的创作,由于融入主流话语的迫切与功利,在书写新时代乡村生活巨变中,也表现出一些美学层面的不足。

关键词：脱贫攻坚美学追求反思

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反复镦压6013型铝合金的组织和性能

稀有金属材料与工程 2014年第11期43卷 2819-2823页

作者：张福豹许晓静张允康张振强吴瑶江苏大学江苏镇江212013 南通大学江苏南通226019

以6013型铝合金为试验对象,研究了反复镦压工艺制备细晶材料,消除合金各向异性的可行性。采用金相显微镜,透射电镜研究了6013型铝合金反复镦压对合金组织和性能的影响。结果表明:反复镦压使合金内部产生取向各异、彼此交错的变形带,有... 详细信息

以6013型铝合金为试验对象,研究了反复镦压工艺制备细晶材料,消除合金各向异性的可行性。采用金相显微镜,透射电镜研究了6013型铝合金反复镦压对合金组织和性能的影响。结果表明:反复镦压使合金内部产生取向各异、彼此交错的变形带,有利于细化合金组织,经480℃,2 h的退火处理后,合金发生再结晶,合金晶粒等轴化,大小分布均匀,与未反复镦压合金组织相比,晶粒显著细化,减轻了组织各向异性;合金强度随镦压道次的增加,先降低后升高,对镦压后的合金进行T6处理(560℃,2 h+191℃,4 h),反复镦压3道次和12道次合金的硬度分别为1418.5和1503.5 MPa。研究表明:反复镦压工艺可以有效细化晶粒,消除组织各向异性,多道次镦压后,合金强度有所提高。

关键词：反复镦压 6013 铝合金各向异性退火

Liuwei Dihuang Wan Drug Serum attenuates Aβ25-35-induced cytotoxicity in PC12 cells

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Liuwei Dihuang Wan Drug Serum attenuates Aβ25-35-induced cy...

Liuweidihuangwan inhibits the expression of TBP-2-RAGE and prevents Aβ-induced oxidative stress and inflammation

中国神经科学学会第十二届全国学术会议

作者： JunYing Song ZiChuang Wang YaQuan Jia Yong Yuan WenDi Liu zhenqiang zhang Laboratory of Medical Immunology Henan University of Chinese Medicine Pathology Department Second Affiliated Hospital of Henan University of Chinese Medicine

Objective: The β-amyloid protein(Aβ)-induced neurotoxicity is considered to be the main causative factor for Alzheimer’s disease(AD). Liuwei Dihuang Wan(LDW) is popular Chinese herbal formula, which is described as an anti-aging prescription in ancient Chinese herbal books. In this study, we investigated the inhibitory effects of LDW drug serum on Aβ-induced apoptosis in PC12 cells and the related signaling pathway. Methods: To evaluate the protective effects of LDW drug serum, we analyzed the viability in PC12 cells by MTT assay. To explore the possible mechanism of neuroprotection, we assessed mitochondria-mediated apoptotic activity by measuring caspase-9 and caspase-3 activation, Foxo3 a levels by Western Blot, and anti-oxidant activity by measuring reactive oxygen species(ROS) and glutathione(GSH) levels. Results:(1) LDW drug serum significantly inhibited Aβ-induced toxicity;(2) LDW drug serum attenuated Aβ25-35-induced activation of caspase-3 and caspase-9;(3) LDW drug serum decreased Aβ-induced expression of Foxo3 a;(4) LDW drug serum reduced Aβ-induced intracellular ROS production and GSH depletion. Conclusion:These data suggest that LDW could protect PC12 cells against Aβ25-35-induced neurotoxicity through enhancing intracellular antioxidant activity and regulating Foxo3 amediated signal pathway. LDW might be a potentially therapeutic agent for AD treatment.

关键词： Liuwei Dihuang Wan β-amyloid Foxo3a Alzheimer’s disease

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Liuweidihuangwan inhibits the expression of TBP-2-RAGE and p...

第九届全国免疫学学术大会

作者： Song Junying Lv Huanhuan Lv Jing Jia Yaquan Cheng Yanyan zhang zhenqiang Henan University of Traditional Chinese Medicine

Backgroud:Oxidative stress and inflammation play an important role in the development of the occurrence of Alzheimer’s Disease(AD).Thioredoxin binding protein-2(TBP-2)is a oxidative stress and pro-inflammation *** role of receptor for advanced glycation end products(RAGE)and Ap-induced oxidation stress are an key contributor to neurodegeneration in ***,the effect of them on the molecular mechanism of AD still *** will present evidence for a novel pathway of TBP-2-RAGE in AD,which are inhibited by Liuweidihuangwan serum(LWDHS)to promote neuroprotection by blocking oxidative stress and inflammation in ***:TBP-2 has various biologic activities,including the control of redox balance and the pro-apoptosis and *** and beta-amyloid peptide(Aβ)are key activators of plaque-associated cellular *** current study was designed to examine the effcets of Liuweidihuangwan serum(LWDHS)on the expression of TBP-2-RAGE and Aβ-induced ***:we test TBP-2 and RAGE after LWDHS treatment by western *** protective effect of LWDHS against Aβinduced injury was assessed by MTT ***:LWDHS inhibits the expression of TBP-2 and RAGE by Aβ,and attenuated Aβinduced oxidative stress and inflammatory response of C6 ***:LWDHS is a new inhibitor of TBP-2-RAGE,and has a possible potential as a therapeutic agent for neurodegenerative diseases including AD.

关键词： Alzheimer’s disease beta-amyloid peptide Liuweidihuangwan serum Thioredoxin binding protein-2 receptor for advanced glycation end products

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氢渗透钯复合膜的研究进展

复合材料学报 2024年第10期41卷 5241-5256页

作者：朱晓昕张振强曹梅田乙然韩飞张彬昆明理工大学理学院昆明650500 云南贵金属实验室有限公司昆明650106

钯复合膜由于其特殊的透氢机制−溶解/扩散机制,对氢具有极高的选择渗透性,是膜反应器中氢气分离的理想材料。为促进高透氢性、高稳定性钯复合膜的研究与应用,本文综述了钯复合膜的化学镀制备法和化学镀与其他方式结合的复合制备法以及... 详细信息

钯复合膜由于其特殊的透氢机制−溶解/扩散机制,对氢具有极高的选择渗透性,是膜反应器中氢气分离的理想材料。为促进高透氢性、高稳定性钯复合膜的研究与应用,本文综述了钯复合膜的化学镀制备法和化学镀与其他方式结合的复合制备法以及不同类型的复合膜。化学镀是钯复合膜最常用的制备方法,通过与真空、连续流结合可提高钯膜的质量;VB族金属、多孔陶瓷和不锈钢作为化学镀钯膜的载体,可减小钯膜厚度,提高机械强度和透氢性能;在钯膜和多孔载体之间掺入难熔氧化物、沸石、天然矿物、聚合物,可进一步减小钯膜厚度,提高热稳定性和化学稳定性;与纯钯膜相比,Pd-Ag、Pd-Cu、Pd-Au二元合金膜和Pd-Au-Ag三元合金膜在低温下不发生氢脆,可不同程度地改善钯膜的透氢性和抗硫性。最后,对未来钯复合膜的研究方向进行了展望。

关键词：钯复合膜透氢性膜反应器热稳定性化学稳定性

纵向静磁场对定向凝固GCr15轴承钢柱状晶向等轴晶转变的影响

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金属学报 2018年第5期54卷 801-808页

作者：侯渊任忠鸣王江张振强李霞上海大学省部共建高品质特殊钢冶金与制备国家重点实验室上海200072

进行了外加纵向静磁场下GCr15轴承钢的定向凝固实验,考察了纵向静磁场对试样凝固过程中柱状枝晶向等轴枝晶转变(columnar to equiaxed transition,CET)的影响。结果表明,在温度梯度(104 K/cm)和抽拉速率(20μm/s)一定时,随着磁场强度的... 详细信息

进行了外加纵向静磁场下GCr15轴承钢的定向凝固实验,考察了纵向静磁场对试样凝固过程中柱状枝晶向等轴枝晶转变(columnar to equiaxed transition,CET)的影响。结果表明,在温度梯度(104 K/cm)和抽拉速率(20μm/s)一定时,随着磁场强度的增加(0~5 T),试样棒边缘柱状枝晶的生长逐渐地遭到破坏,从而发生不同程度的CET;当磁场强度和温度梯度分别为4 T和104 K/cm时,在较低抽拉速率(5μm/s)下,试样的凝固组织发生了完全CET;在试样发生完全CET后,其合金元素分布趋于均匀。结合数值模拟,可将这些现象归结为纵向静磁场与热电流相互作用产生的热电磁力对枝晶和熔体的作用所致。

关键词： GCr15轴承钢纵向静磁场定向凝固偏析柱状晶向等轴晶转变

Measurement of refractive indices and thermal refractive index coefficients of Cr^3+ Be3Al2Si6O18 by auto-collimation method

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Science China(Technological Sciences) 2004年第2期47卷 186-190页

作者： CHEN zhenqiang1,2 ,zhang Ge1,SHEN Hongyuan1,HUANG Chenghui1 & LIU Wen1 1.Fujian Institute of Research on the Structure of Matter,Chinese Academy of Sciences,Fuzhou 350002,China 2.College of Science and Engineering,Jinan University,Guangzhou 510632,China 1. Fujian Institute of Research on the Structure of Matter Chinese Academy of Sciences 350002 Fuzhou China 2. College of Science and Engineering Jinah University 510632 Guangzhou China

The principal refractive indices and the thermal refractive index coefficients for Be3Al2Si6O18 crystal doped with 1.01wt% Cr2O3 have been accurately measured by the auto-collimation method at wavelengths of 0.488, 0.53975, 1.064, 1.0795 and 1.3414 μm, and temperatures of 308.2, 328.6, 359.1 and 395.4 K respectively. Based on the measured results of principal indices of 0.488, 0.6328, 1.0795 and 1.3414μm, the Sellmeier’s equations and the thermal refractive index coefficients have been obtained, and the result has been proven to be accurate by error analysis.

关键词： Cr3+: Be3Al2Si6O18 crystal, refractive index, thermal coefficient.