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Oxygen vacancies enriched nickel cobalt based nanoflower cathodes: Mechanism and application of the enhanced energy storage

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Journal of Energy Chemistry 2021年第11期30卷 252-261,I0006页

作者： jiahui ye Xingwu Zhai Long Chen Wen Guo Tiantian Gu Yulin Shi Juan Hou Fei Han Yi Liu Changchun Fan Gang Wang Shanglong Peng Xuhong Guo Key Laboratory for Green Process of Chemical Engineering of Xinjiang Bingtuan School of Chemistry and Chemical EngineeringShihezi UniversityShihezi 832003XinjiangChina Hunan Province Key Laboratory for Advanced Carbon Materials and Applied Technology College of Materials Science and EngineeringHunan UniversityChangsha 410082HunanChina Institut für Chemie AG ElektrochemieTechnische Universität ChemnitzChemnitz 09111Germany National&Local Joint Engineering Laboratory for Optical Conversion Materials and Technology School of Physical Science and TechnologyLanzhou UniversityLanzhou 730000GansuChina State Key Laboratory of Chemical Engineering East China University of Science and TechnologyShanghai 200237China

The rational design of oxygen vacancies and electronic microstructures of electrode materials for energy storage devices still remains a challenge. Herein, we synthesize nickel cobalt-based oxides nanoflower arrays assembled with nanowires grown on Ni foam via the hydrothermal process followed annealing process in air and argon atmospheres respectively. It is found that the annealing atmosphere has a vital influence on the oxygen vacancies and electronic microstructures of resulting NiCo_(2)O_(4) (NCO-Air) and CoNiO_(2) (NCO-Ar) products, which NCO-Ar has more oxygen vacancies and larger specific surface area of 163.48 m^(2)/g. The density functional theory calculation reveals that more oxygen vacancies can provide more electrons to adsorb –OH free anions resulting in superior electrochemical energy storage performance. Therefore, the assembled asymmetric supercapacitor of NCO-Ar//active carbon delivers an excellent energy density of 112.52 Wh/kg at a power density of 558.73 W/kg and the fabricated NCO-Ar//Zn battery presents the specific capacity of 180.20 mAh/g and energy density of 308.14 Wh/kg. The experimental measurement and theoretical calculation not only provide a facile strategy to construct flower-like mesoporous architectures with massive oxygen vacancies, but also demonstrate that NCO-Ar is an ideal electrode material for the next generation of energy storage devices.

关键词： NiCo_(2)O_(4) CoNiO_(2) Supercapacitor Oxygen vacancy defects Flower-like microstructure

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A shear-thinning,ROS-scavenging hydrogel combined with dental pulp stem cells promotes spinal cord repair by inhibiting ferroptosis

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Bioactive Materials 2023年第4期22卷 274-290页

作者： Yibo Ying Zhiyang Huang Yurong Tu Qiuji Wu Zhaoyu Li Yifan Zhang Huilei Yu Annian Zeng Hanzhi Huang jiahui ye Weiyang Ying Min Chen Zhiyi Feng Ziyue Xiang Qingsong ye Sipin Zhu Zhouguang Wang School of Pharmaceutical Science Wenzhou Medical UniversityWenzhouZhejiang325000China Department of Orthopaedics The Second Affiliated Hospital and Yuying Children’s Hospital of Wenzhou Medical UniversityWenzhouZhejiangChina Department of Pain Medicine The Second Affiliated Hospital and Yuying Children’s Hospital of Wenzhou Medical UniversityWenzhou325000ZhejiangChina Center of Regenerative Medicine Renmin Hospital of Wuhan UniversityWuhan460030HubeiChina Massachusetts General Hospital Harvard UniversityBoston02114USA Department of Overseas Education College Jimei UniversityXiamenFujianChina

Spinal cord injury(SCI)is a serious clinical *** to the deformability and fragility of the spinal cord,overly rigid hydrogels cannot be used to treat ***,we used TPA and Laponite to develop a hydrogel with shear-thinning *** hydrogel exhibits good deformation,allowing it to match the physical properties of the spinal cord;additionally,this hydrogel scavenges ROS well,allowing it to inhibit the lipid peroxidation caused by *** to the in vivo studies,the TPA@Laponite hydrogel could synergistically inhibit ferroptosis by improving vascular function and regulating iron *** addition,dental pulp stem cells(DPSCs)were introduced into the TPA@Laponite hydrogel to regulate the ratios of excitatory and inhibitory *** was shown that this combination biomaterial effectively reduced muscle spasms and promoted recovery from SCI.

关键词： Shear-thinning hydrogel Dental pulp stem cells Ferroptosis ROS-Scavenging Synaptic regulation

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The marriage of sealant agent between structure transformable silk fibroin and traditional Chinese medicine for faster skin repair

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Chinese Chemical Letters 2022年第3期33卷 1599-1603页

作者： Rongjun Zhang Youbin Zheng Tianqing Liu Ning Tang Lianzhi Mao Lihan Lin jiahui ye Luoyijun Xie Wenwen Hu Weiwei Wu Wenzhen Liao Miaomiao Yuan The Eighth Affiliated Hospital Sun Yat-sen UniversityShenzhen 518033China Institute of Molecular Medicine(IMM) Renji HospitalShanghai Jiao Tong University School of MedicineShanghai 200240China Department of Chemical Engineering and Russell Berrie Nanotechnology Institute Technion-Isr1ael Institute of TechnologyHaifa 3200003Israel School of Advanced Materials and Nanotechnology Interdisciplinary Research Center of Smart SensorsXidian UniversityXi'an 710126China Department of Nutrition and Food Hygiene School of Public HealthSouthern Medical UniversityGuangzhou 510515China

Fast skin repair is critical for less infection, less pain and high quality of life, which is still limited with undesirable rehabilitation speed and side effects. Currently, laser-activated silk sealant agent without suture and gauze has been demonstrated promising for fast skin repair taking advantage of its structural transformation after heating. Nevertheless, more efficient healing effects and less side effects of laseractivated silk sealant agent remains challenging due to absence of suitable photo-thermal materials and robust/biomimetic protein materials. In this work, the marriage between silk protein and Rehmanniae radix preparata(a kind of the traditional Chinese herb) has been demonstrated as a novel and effective way to achieve an excellent healing effect for skin repair. The non-toxicity, high photothermal conversion efficiency and healing mechanism are systematically studied and proved. This new methodology might shed a new light for combining dark traditional Chinese medicine and silk fibroin for advanced wound healing technology.

关键词： Rehmanniae radix preparata Silk fibroin Sealant agent Photo-thermal effect Skin repair

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基于图像融合的水下桥墩裂纹图像增强方法

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光电子·激光 2025年第2期36卷 158-166页

作者：杨威刘志强叶嘉辉于双洋周枫江苏科技大学机械工程学院浙江省海洋开发研究院

针对水下桥墩裂纹图像存在模糊、亮度差、对比度低等问题，提出了一种基于图像融合的水下桥墩裂纹图像增强方法。首先利用同态滤波对裂纹图像进行去噪声处理，去除水下环境对裂纹图像的噪声影响；其次对同态滤波处理后的裂纹图像从红-绿... 详细信息

针对水下桥墩裂纹图像存在模糊、亮度差、对比度低等问题，提出了一种基于图像融合的水下桥墩裂纹图像增强方法。首先利用同态滤波对裂纹图像进行去噪声处理，去除水下环境对裂纹图像的噪声影响；其次对同态滤波处理后的裂纹图像从红-绿-蓝(red-green-blue, RGB)空间转换为LAB色彩空间(lab color space, LAB),对LAB中的L通道利用自适应伽马校正对裂纹图像进行亮度处理，将处理后的裂纹图像转换回RGB空间得到增强的裂纹图像1;将同态滤波处理后的裂纹图像利用限制对比度自适应直方图均衡化(contrast limited adaptive histogram equalization, CLAHE)处理得到对比度加强的裂纹图像2;最后将图像1和图像2进行加权融合得到最终的增强图像。应用主观视觉效果和3种客观评价指标来验证本文算法的可靠性，结果表明，本文方法处理的裂纹图像亮度、清晰度、对比度均得到有效提升。

关键词：桥墩裂纹水下图像图像增强图像加权融合

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Hypoxia response element-directed expression of bFGF in dental pulp stem cells improve the hypoxic environment by targeting pericytes in SCI rats

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Bioactive Materials 2021年第8期6卷 2452-2466页

作者： Sipin Zhu Yibo Ying Yan He Xingxing Zhong jiahui ye Zhiyang Huang Min Chen Qiuji Wu Yifan Zhang Ziyue Xiang Yurong Tu Weiyang Ying Jian Xiao Xiaokun Li Qingsong ye Zhouguang Wang Department of Orthopaedics The Second Affiliated Hospital and Yuying Children’s Hospital of Wenzhou Medical UniversityWenzhouZhejiang325000China Molecular Pharmacology Research Center School of Pharmaceutical ScienceWenzhou Medical UniversityWenzhouZhejiangChina Department of Pain Medicine The Second Affiliated Hospital and Yuying Children’s Hospital of Wenzhou Medical UniversityWenzhou325000ZhejiangChina School and Hospital of Stomatology Wenzhou Medical UniversityWenzhou325035China Laboratory of Regenerative Medicine Tianyou HospitalWuhan University of Science and TechnologyWuhan430064China The Department of Cardiology The First Affiliated HospitalSchool of MedicineZhejiang UniversityChina Massachusetts General Hospital Harvard UniversityBoston02114USA Research Units of Clinical Translation of Cell Growth Factors and Diseases Research Chinese Academy of Medical ScienceChina Center of Regenerative Medicine Renmin Hospital of Wuhan UniversityWuhan630060China

Cell-based transplantation strategies possess great potential for spinal cord injury(SCI)*** fibroblast growth factor(bFGF)has been reported to have multiple neuro-promoting effects on developing and adult nervous system of mammals and considered a promising therapy for nerve injury following *** dental pulp stem cells(DPSCs)are abundant stem cells with low immune rejection,which can be considered for cell replacement *** purpose of this study was to investigate the roles of DPSCs which express bFGF under the regulation of five hypoxia-responsive elements(5HRE)using an adeno-associated virus(AAV-5HRE-bFGF-DPSCs)in SCI repairing *** this study,DPSCs were revealed to differentiate into CD13^(+)pericytes and up-regulate N-cadherin expression to promote the re-attachment of CD13^(+)pericytes to vascular endothelial *** re-attachment of CD13^(+)pericytes to vascular endothelial cells subsequently increased the flow rate of blood in microvessels via the contraction of *** a result,increased numbers of red blood cells carried more oxygen to the damaged area and the local hypoxia microenvironment in SCI was ***,this study represents a step forward towards the potential use of AAV-5HRE-bFGF-DPSCs in SCI treatment in clinic.

关键词： Spinal cord injury Adeno-associated virus Basic fibroblast growth factor Dental pulp stem cell Vascular regulation Hypoxic microenvironment

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雄安新区生态系统热消减功能研究

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生态学报 2022年第24期42卷 9981-9994页

作者：叶家慧叶露锋刘辉韩永伟中国环境科学研究院北京100012 兰州大学兰州730000

雄安新区作为国家确立不久的新区,建设绿色生态宜居新城区是其重大规划目标之一。近几年城市化进程加快,城市面貌变化大,城市热岛效应愈发严重,而城市生态系统中的蓝绿空间能够提供温度调节功能,消减并改善城市热环境。基于Landsat遥感... 详细信息

雄安新区作为国家确立不久的新区,建设绿色生态宜居新城区是其重大规划目标之一。近几年城市化进程加快,城市面貌变化大,城市热岛效应愈发严重,而城市生态系统中的蓝绿空间能够提供温度调节功能,消减并改善城市热环境。基于Landsat遥感数据和土地利用数据,分析生态斑块的降温效益并模拟了雄安新区生态系统的热消减功能。结果表明:(1)雄安新区各类绿地中园地和其他林地的降温距离最大,为300 m,降温幅度分别为0.79℃和0.62℃;各类水体中湖泊的降温距离最大,为350 m,降温幅度为1.29℃。(2)不同生态斑块温度与景观格局指数有一定的相关性,其中相关性较强的有面积、周长、周长面积比和最小邻近距离指数,且不同类型斑块有不同的景观格局指数阈值,在阈值范围内温度呈下降趋势,城市蓝绿空间规划建设过程中可以参考各生态斑块的景观格局指数阈值开展工作。(3)雄安新区生态系统的热消减量在0.4—5.63℃之间,热消减能力突出的区域主要集中在白洋淀附近,其中湖泊发挥的作用最强,其次为分布在建成区的部分林地和草地,河渠的热消减能力相对较低,热消减能力最弱的是分布在雄安新区北边建成区的少量草地和林地。

关键词：热消减功能降温效益景观格局雄安新区

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“FIFA11+”练习应用于青少年篮球运动员热身的可行性分析

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当代体育科技 2022年第32期12卷 41-46页

作者：叶嘉慧北京体育大学中国篮球运动学院北京100084

“FIFA11+”是2006年国际足球联合会医学评估与研究中心(F-MARC)通过多方权威探讨和研究实证而制定的预防足球运动损伤的综合性热身练习。现已有学者逐渐开始对“FIFA11+”能否应用于足球以外的运动项目进行论证,并得到了一些研究结果... 详细信息

“FIFA11+”是2006年国际足球联合会医学评估与研究中心(F-MARC)通过多方权威探讨和研究实证而制定的预防足球运动损伤的综合性热身练习。现已有学者逐渐开始对“FIFA11+”能否应用于足球以外的运动项目进行论证,并得到了一些研究结果。该文秉持预防大于治疗的原则,从青少年篮球运动员损伤特点以及篮球动作技术特点方面分析“FIFA11+”应用于青少年篮球运动员热身中的可行性,获得以下启示:(1)“FIFA11+”的练习内容与篮球运动的动作技术特点存在共性;(2)“FIFA11+”预防损伤的作用机制与青少年篮球运动的损伤特点存在相适应性,其应用于青少年篮球运动中具有可行性。但也存在着一定的局限性:(1)“FIFA11+”练习内容中缺乏对上肢部位的动作练习;(2)关于“FIFA11+”预防损伤的作用机制中,神经肌肉的协调控制是其产生预防效果的重要原因,预防损伤的训练可以降低青少年篮球运动员一般的下肢损伤发生率,但在减少ACL损伤发生率方面的作用还未达成一致。

关键词： “FIFA11+”练习青少年篮球运动员热身运动损伤

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“天玑”骨科机器人辅助与徒手经椎弓根行椎体后凸成形术治疗胸椎骨质疏松性椎体压缩骨折的疗效分析

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中国修复重建外科杂志 2023年第9期37卷 1106-1112页

作者：马铭志王志聪叶佳徽陈曦川北医学院四川南充637000 德阳市人民医院骨科四川德阳618000 成都中医药大学成都610075

目的比较“天玑”骨科机器人辅助下与C臂X线机透视下徒手经椎弓根行经皮椎体后凸成形术(percutaneous kyphoplasty,PKP)治疗胸椎骨质疏松性椎体压缩骨折(osteoporotic vertebral compression fracture,OVCF)的疗效。方法回顾分析2020... 详细信息

目的比较“天玑”骨科机器人辅助下与C臂X线机透视下徒手经椎弓根行经皮椎体后凸成形术(percutaneous kyphoplasty,PKP)治疗胸椎骨质疏松性椎体压缩骨折(osteoporotic vertebral compression fracture,OVCF)的疗效。方法回顾分析2020年1月—2023年3月收治且符合选择标准的85例胸椎OVCF患者临床资料,其中40例(50个椎体)于“天玑”骨科机器人辅助下穿刺行PKP(A组),45例(50个椎体)于C臂X线机透视下徒手穿刺行PKP(B组)。两组患者性别、年龄、身体质量指数、骨密度T值、骨折节段、外伤史及术前数字疼痛评分(NRS)、Oswestry功能障碍指数(ODI)、伤椎Cobb角等基线资料比较差异均无统计学意义(P>0.05)。收集并比较两组疗效评价指标,包括手术时间、骨水泥注入量、透射次数、住院时间及术后并发症发生情况。术后1 d复查伤椎正侧位X线片及CT,观察是否有骨水泥渗漏,评估伤椎内骨水泥分布情况。手术前后采用NRS评分评估疼痛情况,ODI评估机体功能障碍情况,摄X线片测量伤椎Cobb角评估椎体高度恢复情况。结果两组患者均顺利完成手术,A组手术时间、骨水泥用量、透射次数及住院时间均少于B组(P0.05)。结论 “天玑”骨科机器人辅助下经椎弓根行PKP治疗胸椎OVCF安全有效,可减少术中透射次数、缩短手术时间、减少骨水泥注入量、降低骨水泥渗漏发生。

关键词：胸椎骨质疏松性椎体压缩骨折经皮椎体后凸成形术 “天玑”骨科机器人

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Facile synthesis of Zn-doped NiCo2O4 nanoparticles with enhanced electrochemical detection performance for Cu(Ⅱ)

Facile synthesis of Zn-doped NiCo2O4 nanoparticles with enha...

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中国化学会第十四届全国电分析化学学术会议

作者：江蓉 Long Chen Xuemei Bai jiahui ye Yun Luo Liping Wang Changchun Fan Haoquan Li Yulin Shi Feng Yu Yisheng Xu Key Laboratory for Green Process of Chemical Engineering of Xinjiang Bingtuan School of Chemistry and Chemical EngineeringShihezi University National& Local Joint Engineering Laboratory for Optical Conversion Materials and Technology School of Physical Science and TechnologyLanzhou University State Key Laboratory of Supramolecular Structure and Materials College of ChemistryJilin University State Key Laboratory of Chemical Engineering East China University of Science and Technology

A novel nano-ternary spinel oxides of Zn-Ni-Co-O is synthesized via the co precipitation method and used for trace detection towards Cu(Ⅱ) in real water *** morphologies and microstructures of ZnNiCo O(x=0,0.2,0.4,0.6,0.8,1.0)are characterized and *** the x of 0.4, the prepared ZnNiCo O nanomaterial modified glassy carbon electrode(GCE) can realize electrochemical ultra-trace detection of Cu(Ⅱ),which shows low detection limit of 4.93 nm and high sensitivity of 12.02 μA/μ***,2 nNiCo O modified electrodes exhibit good repeatability(relative standard deviation(RSD) of 0.34%),reproducibility(RSD of 0.30%),stability(RSD of 3.00%) as well as anti-interference ***,ZnNiCo O nanornaterials have excellent potential application for real water enviro nment,which shows the recovery of 90%.This work provides a design idea of promising materials for the construction of ultratrace electrochemical sensors towards Cu(Ⅱ) that meet the needs of environmental mo nitoring.

关键词： Zn-doped sensors coprecipitation ternary spinel oxide Cu(Ⅱ)

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二氧化碳、正丁胺和醇“一步法”合成氨基甲酸酯的热力学分析

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精细石油化工 2015年第4期32卷 44-49页

作者：孙大雷叶嘉辉许立力方岩雄广东工业大学轻工化工学院广东广州510006

采用基团贡献法计算了CO2、正丁胺和醇“一步法”合成氨基甲酸酯复合反应体系的热力学参数。计算结果表明：在温度298~348K,该反应的吉布斯自由能ΔrG和反应摩尔焓变ΔrH均小于零,预示着该反应为可逆放热反应,且存在最佳反应温度。热力... 详细信息

采用基团贡献法计算了CO2、正丁胺和醇“一步法”合成氨基甲酸酯复合反应体系的热力学参数。计算结果表明：在温度298~348K,该反应的吉布斯自由能ΔrG和反应摩尔焓变ΔrH均小于零,预示着该反应为可逆放热反应,且存在最佳反应温度。热力学计算结果与实验及文献结果相吻合,对实验室研究及工业化生产具有重要的指导意义。

关键词：氨基甲酸酯二氧化碳有机胺热力学分析

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