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不同玷污层状态对两步法自酸蚀牙本质粘接系统粘接强度的影响

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温州医科大学学报 2018年第6期48卷 433-436页

作者：郑铁丽张佳慧毛佳杰顾秦温州医科大学附属口腔医院修复科浙江温州325027 温州医科大学口腔学院浙江温州325035

目的:比较金刚砂车针和600目砂纸产生的牙本质玷污层对两步法自酸蚀牙本质粘接系统微拉伸粘接强度的影响。方法:暴露28颗前磨牙的咬合面的牙本质,随机分为2组,分别用高速金刚砂车针(车针组)和600目砂纸(砂纸组)打磨牙本质表面。每组选择... 详细信息

目的:比较金刚砂车针和600目砂纸产生的牙本质玷污层对两步法自酸蚀牙本质粘接系统微拉伸粘接强度的影响。方法:暴露28颗前磨牙的咬合面的牙本质,随机分为2组,分别用高速金刚砂车针(车针组)和600目砂纸(砂纸组)打磨牙本质表面。每组选择2颗牙齿直接用扫描电镜观察牙本质玷污层,剩余的12颗牙齿的打磨面用两步法自酸蚀牙本质粘接系统Opti Bond XTR粘接复合树脂。垂直于粘接面将粘接好的样本切成1 mm厚的薄片,每组随机选取6片在扫描电镜下观察粘接界面的形态;剩余薄片被切割成横截面积为1.0 mm^2的样本,每组随机选择15个样本进行微拉伸力的检测。结果:砂纸组的玷污层薄而均匀;车针组的玷污层较厚,且在牙本质小管内形成管塞。砂纸组和车针组的微拉伸粘接强度分别为(38.77±4.54)MPa 和(38.30±5.11)MPa,2组间差异无统计学意义(P>0.05)。两步法自酸蚀牙本质粘接系统Opti Bond XTR对2种打磨方法产生的粘接面均有良好的渗透,产生的树脂突与底部连接紧密,根部有明显楔状袖口样(funnel-shapped)结构。结论:车针和砂纸打磨形成不同的玷污层,但对两步法自酸蚀牙本质粘接系统Opti Bond XTR的微拉伸粘接强度无明显影响。

关键词：牙本质玷污层两步法自酸蚀牙本质粘接系统微拉伸粘接强度

炭化花生壳与活性碳纤维对Cd^(2+)的吸附研究

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应用技术学报 2018年第4期18卷 304-308页

作者：王欣宇茅嘉洁张骋吴桢干上海应用技术大学材料科学与工程学院上海201418

采用ICP-OES检测技术,研究了以吸附剂投加量、吸附液pH和Cd^(2+)初始浓度等作为影响因素,炭化花生壳和活性碳纤维对Cd^(2+)的吸附性能。研究结果显示,在炭化温度为500℃,pH为6,投加量为0.2g时,炭化花生壳吸附Cd^(2+)的去除率达到99.88%... 详细信息

采用ICP-OES检测技术,研究了以吸附剂投加量、吸附液pH和Cd^(2+)初始浓度等作为影响因素,炭化花生壳和活性碳纤维对Cd^(2+)的吸附性能。研究结果显示,在炭化温度为500℃,pH为6,投加量为0.2g时,炭化花生壳吸附Cd^(2+)的去除率达到99.88%;活性碳纤维投加量为0.4g时去除率最大为79.05%;表明炭化花生壳对Cd^(2+)的吸附效果更好。吸附过程符合Langmuir模型及Freundlich模型,说明对Cd^(2+)的吸附中既有单分子层吸附又存在交换吸附。研究对实际应用中选择合适的Cd^(2+)吸附剂具有指导意义。

关键词：镉离子炭化花生壳活性碳纤维吸附

Monitoring the delicate operations of surgical robots via ultra-sensitive ionic electronic skin

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National Science Review 2022年第12期9卷 163-176页

作者： Danyang Wei jiajie Guo Yuqi Qiu Shaoyu Liu Jiangyan mao Yutian Liu Zhenbing Chen Hao Wu Zhouping Yin State Key Laboratory of Digital Manufacturing Equipment and Technology School of Mechanical Science and EngineeringHuazhong University of Science and Technology Department of Hand Surgery Union Hospital Tongji Medical CollegeHuazhong University of Science and Technology

The arrival of surgical robots in high-end medical equipment is a landmark,and the realization of tactile sensation a major challenge in this important cutting-edge research *** to address this issue,we present ultra-sensitive ionic electronic skin in the form of flexible capacitive pressure sensors,which incorporate multistage bionic microstructures in ion gels for the purpose of monitoring the delicate operations of surgical ***,the ionic skin exhibits an ultra-high sensitivity of 9484.3 kPa-1(<15 kPa),and the sensitivity remains higher than 235 kPa-1in the wide range of 15-155 *** device has also achieved a detection limit as low as 0.12 Pa or,equivalently,0.31 mg,fast response within 24 ms,and high robustness(loading/unloading for 5000 cycles without fatigue).The sensor facilitates the challenging task of tele-operated robotic threading,which exceeds the human tactile perception limit when threading a *** have also confirmed that ionic skin can be used in robot-assisted invasive surgery,such as incision/resection of tissues and suturing of wounds,providing tactile information to surgeons to improve operation success *** flexible ionic skin is capable of conforming to the various shapes of robotic manipulators,thus has great promise for applications in robotic dexterous manipulation,prosthetics and human-machine interfaces.

关键词： surgical robots delicate operations ultra-sensitive ionic electronic skin tactile sensing

Super-resolution quantification of nanoscale damage to mitochondria in live cells

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Nano Research 2020年第8期13卷 2149-2155页

作者： Xintian Shao Qixin Chen Lianting Hu Zhiqi Tian Liuyi Liu Fei Liu Fengshan Wang Peixue Ling Zong-Wan mao jiajie Diao Shandong Academy of Pharmaceutical Sciences Key Laboratory of BiopharmaceuticalsEngineering Laboratory of Polysaccharide DrugsNational-Local Joint Engineering Laboratory of Polysaccharide DrugsJinan250101China Department of Cancer Biology University of Cincinnati College of MedicineCincinnatiOH45267USA School of Pharmaceutical Sciences Cheeloo College of MedicineShandong UniversityJinan250012China Xintian Shao Qixin Chenand Lianting Hu contributed equally to this work.Shandong First Medical University&Shandong Academy of Medical SciencesJinan250062China Xintian Shao Qixin Chenand Lianting Hu contributed equally to this work.School of Information ManagementWuhan UniversityWuhan430072China MOE Key Laboratory of Bioinorganic and Synthetic Chemistry School of ChemistrySun Yat-Sen UniversityGuangzhou510275China

Mitochondrial damage,characterized by altered morphological distribution and the damage of cristae,is closely associated with mitochondrial ***,imaging methods for capturing mitochondrial morphology at the nanoscale level in live samples remain unavailable,which seriously hinders the accurate evaluation and diagnosis of mitochondrial-related *** response,we propose a super-resolution quantification strategy based on structured illumination microscopy(SIM)for the rapid,accurate evaluation of mitochondrial *** the strategy,we accurately captured the morphological distribution of mitochondria at the nanoscale level in a way generally applicable to checking various cell processes and identifying patients with mitochondrial disease who exhibit the SLC25A46 *** also used algorithm-assisted super-resolution imaging to quantitatively analyze damage to mitochondrial cristae,which supports a novel drug screening strategy—high-resolution drug screening—for investigating drugs’pharmacodynamics on organelles in living *** short,our strategy improves the accurate examination of changes in mitochondrial morphology in living cells and indicates new ways in which SIM-imaging can assist in diagnosing mitochondrial disease at the single-cell level.

关键词： mitochondria structured illumination microscopy quantification analyze morphology cristae

面向风功率波动平抑的电池储能双层协调控制策略

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中国电机工程学报 2024年第16期44卷 6494-6506,I0017页

作者：毛志宇李培强肖家杰毛振宇涂春鸣湖南大学电气与信息工程学院湖南省长沙市410082 南方电网科学研究院广东省广州市510663

为保证电池储能持续平抑波动,该文提出一种基于双层协调控制的电池集成储能控制策略。外层控制中,提出基于近零相位自适应滤波的风功率平滑策略,不仅使并网功率满足1、10 min时间尺度波动平抑需求,还减小了控制过程中相位滞后,并在风功... 详细信息

为保证电池储能持续平抑波动,该文提出一种基于双层协调控制的电池集成储能控制策略。外层控制中,提出基于近零相位自适应滤波的风功率平滑策略,不仅使并网功率满足1、10 min时间尺度波动平抑需求,还减小了控制过程中相位滞后,并在风功率较平稳时自适应控制储能系统退出运行,有效降低了储能系统额定功率需求和运行负担。内层控制中,采用不同充、放电特性的两组磷酸铁锂电池集成以跟踪功率指令,并定义等效荷电状态(state of charge,SOC)指标衡量储能系统的整体SOC水平,随后将等效SOC与外层控制相联系,提出基于Logistic动态区间的SOC优化策略,确保优化过程中并网功率满足要求,并解决充、放电不均衡情况下的高/低SOC极端运行状态,保证电池储能持续平抑波动能力,同时可使两组电池储能接近最优放电深度(depth of discharge,DOD)运行,充分利用其循环寿命。

关键词：功率波动平抑近零相位自适应滤波电池寿命充放电能量不平衡 Logistic动态区间

基于模糊分配因子的电池储能参与二次调频策略

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电网技术 2023年第9期47卷 3568-3575页

作者：肖家杰李培强毛志宇湖南大学电气与信息工程学院湖南省长沙市410082

针对电池储能参与区域电力系统二次调频,提出了一种基于模糊动态分配的储能调频控制策略,解决了系统调频需求与储能荷电状态(state of charge,SOC)重构之间的矛盾,并充分发挥了储能的快速调频特性。首先分析了灵敏度与频率偏差的关系,... 详细信息

针对电池储能参与区域电力系统二次调频,提出了一种基于模糊动态分配的储能调频控制策略,解决了系统调频需求与储能荷电状态(state of charge,SOC)重构之间的矛盾,并充分发挥了储能的快速调频特性。首先分析了灵敏度与频率偏差的关系,确定了最佳储能参与调频深度也即分配因子值与频率偏差的关系,并提出通过计算储能分配因子的灵敏度,动态调整分配因子的储能控制策略,解决了以往研究需要制定重构策略以维持储能SOC的问题。在此基础上,考虑负荷连续大扰动下储能持续出力可能会使SOC越限,提出了一种基于超短期负荷预测和模糊控制的储能分配因子二次修正策略,可提前感知负荷变化趋势,并对分配因子进行二次修正,使储能预留充足容量来应对负荷连续大扰动。基于含电池储能的两区域互联系统的仿真算例验证了所提策略的有效性。

关键词：二次调频分配因子动态调整超短期负荷预测模糊功率修正

环保焊枪吸烟对小电流CO2气体保护电弧焊的影响

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焊接学报 2019年第12期40卷 68-72,I0004页

作者：黄勇张佳杰冉小龙毛宇兰州理工大学省部共建有色金属先进加工与再利用国家重点实验室兰州730050 兰州理工大学有色金属合金及加工教育部重点实验室兰州730050 济南诺斯焊接辅具有限公司济南250000

采用环保焊枪进行了小电流二氧化碳气体保护电弧焊平焊位置焊接,通过分析焊接过程中电弧形貌、电流电压和熔滴过渡方式变化以及焊缝成形、焊缝金属拉伸力学性能和X射线探伤结果,评估了吸烟功率变化时的吸烟效果以及吸烟行为对于焊接过... 详细信息

采用环保焊枪进行了小电流二氧化碳气体保护电弧焊平焊位置焊接,通过分析焊接过程中电弧形貌、电流电压和熔滴过渡方式变化以及焊缝成形、焊缝金属拉伸力学性能和X射线探伤结果,评估了吸烟功率变化时的吸烟效果以及吸烟行为对于焊接过程和焊缝质量的影响规律.结果表明,使用环保焊枪可以显著降低小电流二氧化碳气体保护电弧焊时飘散在周围空间中的焊接烟尘.吸烟过程虽然使得短路过渡熔滴频率略有增加,悬挂熔滴和电弧的稳定性略为变差,但对焊缝成形和焊接缺陷都无影响,焊缝金属屈服强度略有减小,抗拉强度略有增加.

关键词：环保焊枪二氧化碳气体保护电弧焊短路过渡焊接过程焊接品质

Self-adaptive pyroptosis-responsive nanoliposomes block pyroptosis in autoimmune inflammatory diseases

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Bioactive Materials 2024年第6期36卷 272-286页

作者： Kaiwang Xu Huang Yang Jinghua Fang Kaijie Qiu Haotian Shen Guanrui Huang Qiangqiang Zheng Canlong Wang Tengjing Xu Xinning Yu jiajie Wang Yunting Lin Jiacheng Dai Yuting Zhong Hongyun Song Sunan Zhu Siheng Wang Zhuxing Zhou Guang Yang Zhengwei mao Zongyou Pan Xuesong Dai Department of Orthopedic Surgery Second Affiliated HospitalSchool of MedicineZhejiang UniversityHangzhou310009China Orthopedics Research Institute Zhejiang UniversityHangzhou310009China Key Laboratory of Motor System Disease Research and Precision Therapy of Zhejiang Province Hangzhou310009China Clinical Research Center of Motor System Disease of Zhejiang Province Hangzhou310009China MOE Key Laboratory of Macromolecular Synthesis and Functionalization Department of Polymer Science and EngineeringZhejiang UniversityHangzhou310027China Department of Hepatobiliary and Pancreatic Surgery Second Affiliated HospitalSchool of MedicineZhejiang UniversityHangzhou310009China Zhejiang University Hangzhou310058China Dr.Li Dak Sum&Yip Yio Chin Center for Stem Cells and Regenerative Medicine Zhejiang University School of MedicineHangzhou310000China

Nanoliposomes have a broad range of applications in the treatment of autoimmune inflammatory diseases because of their ability to considerably enhance drug *** their clinical application,nanoliposomes must be able to realize on-demand release of drugs at disease sites to maximize drug-delivery efficacy and minimize side ***,responsive drug-release strategies for inflammation treatment have been explored;however,no specific design has been realized for a responsive drug-delivery system based on pyroptosis-related ***,we report a pioneering strategy for self-adaptive pyroptosis-responsive liposomes(R8-cardiolipin-containing nanoliposomes encapsulating dimethyl fumarate,RC-NL@DMF)that pre-cisely release encapsulated anti-pyroptotic drugs into pyroptotic *** activated key pyroptotic protein,the N-terminal domain of gasdermin E,selectively integrates with the cardiolipin of liposomes,thus forming pores for controlled drug release,pyroptosis,and inflammation ***,RC-NL@DMF exhibited effective therapeutic efficacies to alleviate autoimmune inflammatory damages in zymosan-induced arthritis mice and dextran sulfate sodium-induced inflammatory bowel disease *** novel approach holds great promise for self-adaptive pyroptosis-responsive on-demand drug delivery,suppressing pyroptosis and treating autoimmune inflammatory diseases.

关键词： Nanoliposome Pyroptosis Autoimmune inflammatory diseases Responsive drug delivery Anti-inflammation

Substrates and Electrolytes Dependent Electrocatalytic Performance of Metal Selenides for Hydrogen Evolution Reaction:A Review

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Renewables 2024年第2期2卷 111-137页

作者： Muhammad Faisal Iqbal Mengjiao Li Tao Xu jiajie Yu Dingrui Xiong Zhiyu mao Enlai Hu Jing Zhang Pan Xu Zhongwei Chen Key Laboratory of the Ministry of Education for Advanced Catalysis Materials College of Chemistry and Materials ScienceZhejiang Normal UniversityJinhua 321004 State Key Laboratory of Catalysis Dalian Institute of Chemical PhysicsChinese Academy of SciencesDalian 116023 Power Battery and Systems Research Center Dalian Institute of Chemical PhysicsChinese Academy of SciencesDalian 116023 Zhejiang Fenergy Technology Co. Ltd.Pinghu 314200

The electrochemical skeleton for the production of hydrogen production from water splitting consists of electrocatalysts,electrolytes,substrates,and standard *** selenides have been considered efficient electrocatalysts due to their outstanding ***,electrolytes and employed substrates can significantly influence the electrocatalytic performance of the metal selenides for hydrogen evolution reaction(HER).Several studies of metal selenides for HERs have been carried out and summarized,but there are some severe limitations regarding the synchronization of the employed substrates,electrolytes,and *** experiments suggest that metal selenides deposited on carbon-based substrates inject and transport the charge carriers effectively in an acidic medium and boost the electrocatalytic ***,the metal selenides deposited on materials other than carbon-based substrates inject and make the facile transportation of the charge carriers in an alkaline medium and promote the electrocatalytic ***,the fundamental characteristics,critical factors,and electrocatalytic performance of metal selenides deposited on carbon-based substrates in acidic electrolytes have been effectively *** electrocatalytic performance of the metal selenides in an alkaline electrolyte and substrates like nickel foam have also been summarized to provide direction,challenges,and feedback about the electrocatalytic performance of metal selenides.

关键词： metal selenides electrolytes substrates characteristics of metal selenides hydrogen evolution reaction