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Object tracking on event cameras with offline–online learning

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CAAI Transactions on Intelligence Technology 2020年第3期5卷 165-171页

作者： Rui Jiang Xiaozheng Mou Shunshun Shi Yueyin Zhou Qinyi Wang Meng Dong shoushun chen CelePixel Technology Co.Ltd 71 Nanyang Drive 638075Singapore School of Electrical and Electronic Engineering Nanyang Technological University639798Singapore

Compared with conventional image sensors,event cameras have been attracting attention thanks to their potential in environments under fast motion and high dynamic range(HDR).To tackle the lost-track issue due to fast illumination changes under HDR scene such as tunnels,an object tracking framework has been presented based on event count images from an event *** framework contains an offline-trained detector and an online-trained tracker which complement each other:The detector benefits from pre-labelled data during training,but may have false or missing detections;the tracker provides persistent results for each initialised object but may suffer from drifting issues or even ***,process and measurement equations have been modelled,and a Kalman fusion scheme has been proposed to incorporate measurements from the detector and the ***-initialisation and track maintenance in the fusion scheme ensure autonomous real-time tracking without user *** self-collected event data in urban driving scenarios,experiments have been conducted to show the performance of the proposed framework and the fusion scheme.

关键词： attracting illumination false

Valley polarization in stacked MoS2 induced by circularly polarized light

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Nano Research 2017年第5期10卷 1618-1626页

作者： Juan Xia Xingli Wang Beng Kang Tay shoushun chen Zheng Liu Jiaxu Yan Zexiang Shen Division of Physics and Applied Physics School of Physical and Mathematical Sciences Nanyang Technological University Singapore 637371 Singapore NOVITAS Nanoelectronics Centre of Excellence School of Electrical and Electronic Engineering Nanyang Technological University Singapore 639798 Singapore CINTRA CNRS/NTU/-I-HALES UM13288 Research Techno Plaza Singapore 637553 Singapore School of Electrical and Electronic Engineering Nanyang Technological University Singapore 639798 Singapore Center for Programmable Materials School of Materials Science and Engineering Nanyang Technological University Singapore 639798 Singapore Institute of Advanced Materials (IAM) Jiangsu National Synergistic Innovation Can tar for Advanced Materials (SICAM) Nanjing Tech University (NanjingTech) 30 South Puzhu Road Nanjing 211816 China Centre for Disruptive Photonic Technologies Nanyong Technological University Singapore 63737L Singapore

Manipulation of valley pseudospins is crucial for future valleytronics. lhe emerging transition metal dichalcogenides （TMDs） provide new possibilities for exploring the interplay among the quantum degrees of freedom, including real spin, valley pseudospin, and layer pseudospin. For example, spin-valley coupling results in valley-dependent circular dichroism in which electrons with particular spin （up or down） can be selectively excited by chiral optical pumping in monolayer TMDs, whereas in few-layer TMDs, the interlayer hopping further affects the spin-valley coupling. In addition to valley and layer pseudospins, here we propose a new degree of freedom--stacking pseudospin--and demonstrate new phenomena correlated to this new stacking freedom that otherwise require the application of external electrical or magnetic field. We investigated all possible stacking configurations of chemical-vapor-deposition-grown trilayer MoS2 （AAA, ABB, AAB, ABA, and 3R）. Although the AAA, ABA, 3R stackings possess a sole peak with lower degree of valley polarization than that in monolayer samples, the AAB （ABB） stackings exhibit two distinct peaks, one similar to that observed in monolayer MoS2 and findings provide a more future valleytronics. an additional unpolarized complete understanding of peak at lower energy. Our valley quantum control for

关键词： circularly polarizedphotoluminescence,first-principlescalculations,molybdenum disulfide,ultra-low-frequency Raman spectroscopy valley polarization

Design of core-shell nickel oxide/silicon carbide whiskers towards excellent microwave absorption property

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Chinese Journal of Chemical Engineering 2021年第9期34卷 208-216页

作者： Jingpeng chen Ge Song Zhuo Liu Lijing Xie shoushun Zhang chengmeng chen CAS Key Laboratory of Carbon Materials Institute of Coal ChemistryChinese Academy of SciencesTaiyuan 030001China University of Chinese Academy of Sciences Beijing 100049China Center of Materials Science and Optoelectronics Engineering University of Chinese Academy of SciencesBeijing 100049China

Toward the increasingly serious problem of electromagnetic wave pollution,the development of absorbing material with the properties of the light,thin,wide,strong,and multiple applications scenarios is still a huge ***,the core-shell nickel oxide/silicon carbide whiskers(NiO/SiCw)with variational NiO morphologies(tulle-,flower,and rod-like)were designed and fabricated via a facile prehydrothermal method and post-annealing *** the NiO shell morphology,it can effectively be controlled by the proportion of Ni(NO_(3))_(2)·6H_(2)O,NH_(4)Cl,and CO(NH_(2))_(2).The structure of NiO/SiCw samples was investigated by XRD,SEM,XPS,TEM,and N2 *** to other morphologies of NiO,the flower-like NiO/SiCw possess a porous structure and large surface area that can benefit from the multiple reflections and attenuation of the *** an absorber,the composite with the flower-like NiO/SiCw filler loading of 50%manifests a superior microwave attenuation capability due to its special porous structure,good impedance matching,and large dielectric loss induced from heterojunction interfacial *** minimum reflection loss of flower-like NiO/SiCw is up to-56.8 dB with a thickness of 1.9 mm,and the maximum effective absorption bandwidth(EAB)reaches 5.17 *** as-prepared flower-like NiO/SiCw with strong absorption,thin thickness,and width EAB can meet the potential requirements for microwave absorption materials under oxidation environments.

关键词： Flower-like NiO/SiCw Dielectric loss Interfacial polarization Microwave absorption

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霉酚酸脂在肝功能异常患者肾移植中的应用

武警医学 2000年第9期11卷 559-560页

作者：陈湘龙曾祥福魏守顺武警总医院泌尿外科北京100039

随着环孢素A、硫唑嘌呤(Aza)等在肾移植术后的应用,肾移植患者术后存活率明显提高,但其肝脏毒性作用特别是对肝功能异常患者的肝脏毒性也越来越受到人们重视.新一代免疫抑制药霉酚酸脂(MMF)由于其免疫作用强、副作用小而越来越广泛应用... 详细信息

随着环孢素A、硫唑嘌呤(Aza)等在肾移植术后的应用,肾移植患者术后存活率明显提高,但其肝脏毒性作用特别是对肝功能异常患者的肝脏毒性也越来越受到人们重视.新一代免疫抑制药霉酚酸脂(MMF)由于其免疫作用强、副作用小而越来越广泛应用.我们选择16例合并肝功能异常的肾移植术后患者,分别应用硫唑瞟呤、环孢素A、强的松及霉酚酸脂、环孢素A、强的松,取得较好效果,现报告如下.

关键词：霉酚酸脂肝功能异常肾移植应用

老鹳草素对大鼠心肌缺血再灌注损伤的作用及其机制

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吉林中医药 2023年第9期43卷 1063-1067页

作者：彭彩亮崔璇蒋宁马熙凯郭梦雨王超龙陈曦王首舜黑龙江中医药大学哈尔滨150040 黑龙江中医药大学研究生院哈尔滨150040

目的探讨老鹳草素对心肌缺血再灌注损伤的作用及其机制。方法将75只SPF级雄性小鼠用随机数字表分为老鹳草素低剂量组(5μmol/L)、中剂量组(10μmol/L)、高剂量组(20μmol/L)、假手术组和模型组,各15只。观察小鼠心脏功能,检测心肌损伤... 详细信息

目的探讨老鹳草素对心肌缺血再灌注损伤的作用及其机制。方法将75只SPF级雄性小鼠用随机数字表分为老鹳草素低剂量组(5μmol/L)、中剂量组(10μmol/L)、高剂量组(20μmol/L)、假手术组和模型组,各15只。观察小鼠心脏功能,检测心肌损伤标志物,观察各组大鼠心肌组织病理变化,检测心肌组织中核转录因子E2相关因子(nuclear transcriPtion factor E2-related factor,Nrf2)信号通路相关蛋白水平。体外培养H9C2细胞,检测H9C2细胞中自噬相关蛋白及Nrf2信号通路相关蛋白水平。结果与假手术组相比,模型组心功能指标均下降;与模型组相比,老鹳草素低、中、高剂量组LVEF、FS、LVWT、HR、LVSP水平均升高(P<0.05);模型组肌红蛋白(myoglobin,Mb)、肌酸激酶同工酶(creatine kinase isoenzyme,CK-Mb)、肌钙蛋白I(cardiac tro Ponin I,c Tn I)水平高于假手术组(P<0.05);与假手术组相比,模型组LC3-II/LC3-I比值、Beclin-1升高,P62、Nrf2、游离血红素加氧酶-1(heme oxygenase-1,HO-1)蛋白水平降低(P<0.05);与模型组相比,老鹳草素低、中、高剂量组P62、Nrf2、HO-1蛋白水平升高(P<0.05);与对照组相比,H9C2细胞模拟缺血/再灌注(SI/R)损伤后LC3-II/LC3-I比值、Beclin-1升高,P62、Nrf2、HO-1蛋白水平降低(P<0.05)。结论老鹳草素可能通过激活Nrf2信号通路,抑制心肌细胞过度自噬,对心肌缺血再灌注损伤起到明显保护作用。

关键词：老鹳草素心肌缺血/再灌注损伤自噬 Nrf2信号通路大鼠

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改良骶管阻滞麻醉在泌尿系结石手术中的应用

临床泌尿外科杂志 2009年第2期24卷 138-139页

作者：朱宏建肖序仁魏守顺陈湘龙张庆江林少松王红霞武警总医院泌尿外科北京100039

目的:探讨治疗输尿管中下段结石、膀胱结石和尿道结石的简单可行麻醉方法。方法:50例泌尿系结石患者,应用2%利多卡因单次骶管阻滞麻醉,施行输尿管镜或肾镜下气压弹道/超声碎石治疗,采用疼痛分级问卷调查表及根据术中情况判断麻醉效果。... 详细信息

目的:探讨治疗输尿管中下段结石、膀胱结石和尿道结石的简单可行麻醉方法。方法:50例泌尿系结石患者,应用2%利多卡因单次骶管阻滞麻醉,施行输尿管镜或肾镜下气压弹道/超声碎石治疗,采用疼痛分级问卷调查表及根据术中情况判断麻醉效果。结果:除1例患者术中改为硬膜外麻醉外,49例患者在骶管麻醉下成功施行手术,麻醉止痛作用起效时间:5 min 4例;10 min 36例;15 min 10例,疼痛抑制效果满意,麻醉满意评分为:0度38例;Ⅰ度8例;Ⅱ度4例;其中1例出现轻微的头晕、心慌、心悸症状,其余未见明显麻醉并发症。结论:单次骶管阻滞麻醉是施行的一种简单、安全和有效的麻醉方法,费用低,尤适用于输尿管下段结石,甚至女性的输尿管中段结石,结石最大径不超过1 cm,膀胱结石、尿道结石。

关键词：泌尿系结石麻醉输尿管镜肾镜

Design of core-shell nickel oxide/silicon carbide whiskers towards excellent microwave absorption property

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