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Ferroelectric catalytic BaTiO_(3)-based composite insoles to promote healing of infected wounds:Analysis of antibacterial efficacy and angiogenesis

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Interdisciplinary Materials 2024年第5期3卷 757-774页

作者： Qiong liu xudan liu Linfeng Fan Xinna Bai Hao Pan Hang Luo Dou Zhang Haitao Huang Chris R.Bowen State Key Laboratory of Powder Metallurgy Central South UniversityChangshaHunanChina Department of Applied Physics The Hong Kong Polytechnic UniversityHong KongChina Department of Periodontics Hunan Key Laboratory of Oral Health Research&Hunan 3D Printing Engineering Research Center of Oral Care&Hunan Clinical Research Center of Oral Major Diseases and Oral Health&Xiangya Stomatological Hospital&Xiangya School of StomatologyCentral South UniversityChangshaHunanChina Department of Mechanical Engineering University of BathBathUK

Our feet are often subjected to moist and warm environments,which can promote the growth of harmful bacteria and the development of severe infection in wounds located in the *** a result,there is a need for new and innovative strategies to safely sterilize feet,when shoes are worn,to prevent any potential foot-related *** this paper,we have produced a non-destructive,biocompatible and convenient-to-use insole by embedding a BaTiO_(3)(BT)ferroel ectric material into a conventional polydimethylsilane(PDMS)insole material to exploit a ferroelectric catalytic effect to promote the antibacterial and healing of infected wounds via the ferroelectric charges generated during *** formation of reactive oxygen species generated through a ferroelectric catalytic effect in the PDMS-BT composite is shown to increase the oxidative stress on bacteria and decrease both the activity of bacteria and the rate of formation of bacterial *** addition,the ferroelectric field generated by the PDMS-BT insole can enhance the level of transforming growth factor-beta and CD31 by influencing the endogenous electric field of a wound,thereby promoting the proliferation,differentiation of fibroblasts and *** work therefore provides a new route for antimicrobial and tissue reconstruction by integrating a ferroelectric biomaterial into a shoe insole,with significant potential for health-related applications.

关键词： ferroelectric filed effect PDMS-BaTiO3 insole piezo-catalysis wound healing

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The Analysis of Feedback Patient Flow as A Retrial Queueing System in Chinese Outpatient Department

The Analysis of Feedback Patient Flow as A Retrial Queueing ...

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第32届中国控制与决策会议

作者： Huabo Zhu xudan liu School of Economics ＆ Management Liaoning Shihua University

In China,hospitals are not allowed to reject outpatients and are thus confronted with large patient ***,analysis of patient flow and optimization of patient flow are important to improve the efficiency of managing hospital *** on the flow chart in outpatient department（OD）,the diagnosis department has feedback patient flow as retrial customer in the retrial queuing *** retrial queueing system with feedback patient flow model is *** process analysis is carried out for the model,and the performance index of the system is *** influence of feedback patient flow on system performance is analyzed by retrial queuing *** the feedback of the change of patient flow probability,the analysis on the performance of the system is verified by numerical *** study has a certain guiding significance for the healthcare patient flow operations management in OD.

关键词： patient flow retrial queuing Markov

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Study on Calculation Method for Partition of Heat Transfer in an Ultra-supercritical Boiler

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Energy and Power Engineering 2013年第4期5卷 311-314页

作者： Ye Teng Zhongxiao Zhang xudan liu Wei liu Tuo Zhou Ming Zhu School of Energy and Power Engineering University of Shanghai for Science and Technology Shanghai China School of Energy and Power Engineering University of Shanghai for Science and Technology Shanghai China School of Mechanical Engineering Shanghai Jiao Tong University Shanghai China School of Mechanical Engineering Shanghai Jiao Tong University Shanghai China

Use a 1000MW ultra-supercritical tower boiler as the research object. On the basis of one dimensional model, simplify the tube heat transfer model and the radiation heat transfer model;establish the two-dimensional area calculation model with the regional method;?summarize the heat load distribution of flue gas temperature and water wall surface;and compare with the measured data. The error range of the result is acceptable on the project. The distribution of water wall surface heat load along the furnace width and the area where heat transfer deterioration?cause easily along the furnace height direction are studied with the model and algorithm on different boiler load conditions. All these provide the reference for the design and operation of the ultra supercritical boiler.

关键词： Ultra-supercritical Flue Gas Temperature Heat Load Heat Transfer Deterioration

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Establishment of osteoarthritis model in C57BL/6J obese mice induced by high fat diet

Establishment of osteoarthritis model in C57BL/6J obese mice...

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2018环境与健康学术会议--精准环境健康：跨学科合作的挑战

作者： Jianyi He Mengqi Jiang xudan liu Xiaolu Yu Xiaolei Xu Li liu Department of Nutrition and Food Hygiene School of Public HealthChina Medical University

Objectives Osteoarthritis(OA) is a chronic joint disease characterized by articular cartilage *** plays an important role in the development of *** the increasing number of obesity in China,the incidence of OA is increasing year by ***,exploring the pathogenesis of obesity related OA is of great importance in the prevention and treatment of *** we established obesity relatived OA model by inducing obesity in mice by high-fat diet to provide a suitable animal models for the study of obesity related *** Twenty C57 BL/6 J male mice were randomized into control and high-fat diet groups fed with basic or high-fat diet *** weight and food intake were measured *** mice were sacrificed after 16 *** samples were collected from the abdominal *** levels of C-telopeptide of type II collagen(CTX-II) were determined by *** access the degradation of type II collagen into C-telopeptide of type II collagen(CTX-II) in *** left knee joints were fixed,decalcified and paraffin embedded for histological examination(stained with H&E,Safranin O,or Safranin O/Fast Green and were examined microscopically).TUNEL analyses the chondrocyte apoptosis in *** Compared with control mice,the body weight significantly increased in obese mice(p<0.05),while food intake showed no *** fat diet can induce obesity in C57 BL/6 J male *** test showed that serum C-telopeptide of type II collagen levels in the high-fat group were significantly higher than those in the control group at the end of sixteenth weeks(p<0.05).HE and Safranin O staining indicated reduced and disorganized articular chondrocytes,discontinuity of tidemark and poor staining in the knee joints of high-fat diet fed *** modified Mankin scores in high-fat diet group were significantly higher than that in control group(p<0.05).TUNEL assay showed that compared to control mice,the number of apoptotic cells in articu

关键词： High-fat diet obesity osteoarthritis animal model

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数字经济驱动东北三省经济增长的路径探究

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金融理论与教学 2023年第5期 86-88,94页

作者：刘绪丹黑龙江省委党校决策咨询部黑龙江哈尔滨150000

数字经济作为新一轮产业革命的核心,对促进区域经济增长具有重要的意义,是一个值得深入探索的领域。基于此,研究对数字经济的作用及实施路径进行了分析,发现数字经济对于东北三省经济增长的作用路径包括直接驱动作用和间接驱动作用。基... 详细信息

数字经济作为新一轮产业革命的核心,对促进区域经济增长具有重要的意义,是一个值得深入探索的领域。基于此,研究对数字经济的作用及实施路径进行了分析,发现数字经济对于东北三省经济增长的作用路径包括直接驱动作用和间接驱动作用。基于此,研究提出了以数字经济促进东北三省经济增长的路径选择。

关键词：数字经济东北三省经济增长

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基于微信小程序的“指尖清单”系统的设计与实现

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计算机应用文摘 2024年第4期40卷 34-36,40页

作者：刘旭丹天津科技大学天津300457

在现代社会快速发展与科技进步的背景下,人们面对的任务和工作量逐渐增多,高效管理时间与任务成为一项挑战。为了解决这一问题,文章借助组件化开发思想和微信云开发技术开发了名为“指尖清单”的微信小程序。除了基本的待办事项添加、... 详细信息

在现代社会快速发展与科技进步的背景下,人们面对的任务和工作量逐渐增多,高效管理时间与任务成为一项挑战。为了解决这一问题,文章借助组件化开发思想和微信云开发技术开发了名为“指尖清单”的微信小程序。除了基本的待办事项添加、记录完成时间、编辑和删除功能,该小程序还具有多项特色功能,如视图切换、可视化周报总结和词频气泡等,有助于用户深入分析任务完成情况和时间利用效率,从而提升整体工作效能。

关键词：微信云开发组件化开发视图切换可视化周报词频气泡

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低碳背景下生物能源行业参与碳汇交易面临的挑战

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黑龙江科学 2024年第21期15卷 80-82页

作者：刘旭丹黑龙江省能源环境研究院哈尔滨150007

生物能源作为可再生能源的重要组成部分,正逐步成为碳汇交易领域的关键参与者,然而气候变化与全球环境问题为生物能源行业参与碳汇交易带来新的机遇与挑战。基于学者的理论研究,结合相关学术文献、政策文件与行业报告,分析生物能源行业... 详细信息

生物能源作为可再生能源的重要组成部分,正逐步成为碳汇交易领域的关键参与者,然而气候变化与全球环境问题为生物能源行业参与碳汇交易带来新的机遇与挑战。基于学者的理论研究,结合相关学术文献、政策文件与行业报告,分析生物能源行业的发展现状及行业参与碳汇交易面临的主要问题,探讨未来生物能源行业参与碳汇交易所面临的挑战,提出通过加强管理体系建设、政策引导、合理补偿、国际合作、强化培训等方式克服这些挑战,在低碳发展的趋势下,推进生物能源行业可持续发展。

关键词：生物能源碳市场碳交易

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X线数字图像法推断前臂骨折形成时间

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中国法医学杂志 2010年第3期25卷 165-168页

作者：江洁清张继宗刘旭丹复旦大学上海医学院法医学系上海200032 福建警察学院福建福州350007 公安部物证鉴定中心北京100038 北京市公安局丰台分局北京100072

目的利用X线数字图像法推断前臂骨折形成的时间。方法收集70例前臂骨折患者随访的620张X线数字图像,根据X线检查骨折愈合评判标准列表,将骨折愈合过程分为5级,利用Photoshop的图像处理和测量功能,对不同年龄组、不同治疗方式的患者骨折... 详细信息

目的利用X线数字图像法推断前臂骨折形成的时间。方法收集70例前臂骨折患者随访的620张X线数字图像,根据X线检查骨折愈合评判标准列表,将骨折愈合过程分为5级,利用Photoshop的图像处理和测量功能,对不同年龄组、不同治疗方式的患者骨折愈合过程相关放射学标志进行观察和测量,运用SPSS11.5软件对各级愈合时间进行分析。结果年龄和手术与否分别是影响骨折愈合的独立因素,根据不同年龄、不同治疗方式可以得到各级愈合时间列表。以愈合Ⅲ级的出现时间为例,青年组采用石膏固定治疗的,平均时间为12.2周,采用手术治疗的,需要18周,而少年组采用石膏固定治疗的,则只需5.8周。结论根据骨折愈合过程中X线数字图像指标,对患者进行分组观察,可提高推断骨折形成时间的准确度。

关键词：临床法医学损伤时间推断计算机图像处理前臂骨折放射学标志

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数字经济赋能东北经济增长的效应测度与路径研究

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廊坊师范学院学报（自然科学版） 2022年第1期22卷 72-76,83页

作者：刘绪丹方雯长春理工大学吉林长春130022

基于2014-2019年东北三省35个城市的面板数据,运用熵权法构建数字经济发展水平的衡量指标,建立固定效应面板数据模型探究数字经济对东北三省经济发展的影响。结果表明:数字经济发展可以显著促进东北三省的经济发展。在此基础上提出对策... 详细信息

基于2014-2019年东北三省35个城市的面板数据,运用熵权法构建数字经济发展水平的衡量指标,建立固定效应面板数据模型探究数字经济对东北三省经济发展的影响。结果表明:数字经济发展可以显著促进东北三省的经济发展。在此基础上提出对策建议:一是加强数字经济基础设施建设;二是促进数字产业科技创新;三是加快建设素质高、能力强的数字人才队伍;四是完善数字经济相关产业政策。

关键词：数字经济东北三省经济增长固定效应面板数据模型

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The effects of the guide magnetic field on the magnetotail reconnection layer

The effects of the guide magnetic field on the magnetotail r...

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第十一届全国日地空间物理学术讨论会

作者： xudan Wang, Yue liu, Yu Lin, and Xiaogang Wang College of Advanced Science and Technology, Dalian University of Technology, Dalian 116024, P. R. China Physics Department, Auburn University, Auburn, Alabama, USA

＜正＞The effects of the guide magnetic field on the structure of the magnetotail reconnection layer are studied by using two-dimensional （2D） hybrid simulation. The simulation domain is a rectangle in the plane around X line in the distant magnetotail. An initial current sheet separates the two lobes with antiparallel magnetic field components in the direction. In many previous studies, the guide magnetic field was assumed to be zero or a finite constant. In this paper, the effects of a finite and varying on the reconnection layer are studied. It is found that a leading bulge-like magnetic configuration and a trailing quasi-steady reconnection layer are formed in magnetic reconnection. The configurations of velocity vectors and contours of ion number density, thermal pressure, and parallel temperature are shown and discussed. The ion dynamics and the kinetic structure of the reconnection layer not be able to obtain from MHD simulations are also studied.

关键词： magnetic reconnection reconnection layer guide magnetic field hybrid simulation

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