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World Journal of Stem Cells 2024年第5期16卷 499-511页

作者： Shuai Zhang chuan lu Sheng Zheng Guang Hong Division for International Collaborative and Innovative Dentistry Tohoku University Graduate School of DentistrySendai 980-8575MiyagiJapan School of Stomatology Zhejiang Chinese Medical UniversityHangzhou 310053Zhejiang ProvinceChina

BACKGROUND Bone healing is a complex process involving early inflammatory immune regu-lation,angiogenesis,osteogenic differentiation,and *** repair poses challenges for orthopedic surgeons,necessitating the search for efficient healing *** To investigate the underlying mechanism by which hydrogel-loaded exosomes derived from bone marrow mesenchymal stem cells(BMSCs)facilitate the process of fracture *** Hydrogels and loaded BMSC-derived exosome(BMSC-exo)gels were charac-terized to validate their *** vitro evaluations were conducted to assess the impact of hydrogels on various stages of the healing *** could recruit macrophages and inhibit inflammatory responses,enhance of human umbilical vein endothelial cell angiogenesis,and promote the osteogenic differen-tiation of primary cranial ***,the effect of hydrogel on fracture healing was confirmed using a mouse fracture *** The hydrogel effectively attenuated the inflammatory response during the initial repair stage and subsequently facilitated vascular migration,promoted the formation of large vessels,and enabled functional vascularization during bone *** effects were further validated in fracture *** We successfully fabricated a hydrogel loaded with BMSC-exo that modulates macrophage polarization and angiogenesis to influence bone regeneration.

关键词： Hydrogel Bone marrow mesenchymal stem cells Macrophage polarization Angiogenesis Bone regeneration

一部夯实中华民族共同体学理论基础的金教材--《中华民族共同体概论》的叙事特色

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中南民族大学学报（人文社会科学版） 2024年第5期44卷 32-35页

作者：朱露川北京师范大学历史学院、史学理论与史学史研究中心

国家统编教材《中华民族共同体概论》(以下简称《概论》)在近期正式出版了。作为首部以中华民族共同体为讲授对象的教材,《概论》具有鲜明的理论指导,用中国历史的客观进程说明了中华民族共同体的形成和发展,阐述了树立正确的中华民族... 详细信息

国家统编教材《中华民族共同体概论》(以下简称《概论》)在近期正式出版了。作为首部以中华民族共同体为讲授对象的教材,《概论》具有鲜明的理论指导,用中国历史的客观进程说明了中华民族共同体的形成和发展,阐述了树立正确的中华民族历史观的具体路径,是新时代开展铸牢中华民族共同体意识教育工作的重要里程碑。《概论》呼应了全社会对教材的迫切需要,反映了中华民族共同体研究的最新成果,展现了中国学人在中华民族共同体问题上的观点、立场和话语,标志着“中华民族共同体学”的学科建设取得了重大进展。

关键词：《概论》叙事特色中华民族共同体中国学人学科建设讲授对象国家统编教材具体路径

Graphene-loaded nickel−vanadium bimetal oxides as hydrogen pumps to boost solid-state hydrogen storage kinetic performance of magnesium hydride

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Transactions of Nonferrous Metals Society of China 2024年第8期34卷 2645-2657页

作者： Dong-qiang GAO Fu-ying WU Zhi ZHANG Zi-chuan lu Ren ZHOU Hu ZHAO Liu-ting ZHANG School of Energy and Power Jiangsu University of Science and TechnologyZhenjiang 212003China Instrumental Analysis Center Jiangsu University of Science and TechnologyZhenjiang 212003China School of Mechanical and Aerospace Engineering Nanyang Technological UniversitySingapore 639798Singapore

To modify the thermodynamics and kinetic performance of magnesium hydride(MgH_(2))for solid-state hydrogen storage,Ni_(3)V_(2)O_(8)-rGO(rGO represents reduced graphene oxide)and Ni_(3)V_(2)O_(8)nanocomposites were prepared by hydrothermal and subsequent heat *** beginning hydrogen desorption temperature of 7 wt.%Ni_(3)V_(2)O_(8)-rGO modified MgH_(2)was reduced to 208℃,while the additive-free MgH_(2)and 7 wt.%Ni_(3)V_(2)O_(8)doped MgH_(2)appeared to discharge hydrogen at 340 and 226℃,respectively.A charging capacity of about 4.7 wt.%H_(2)for MgH_(2)+7 wt.%Ni_(3)V_(2)O_(8)-rGO was achieved at 125℃ in 10 min,while the dehydrogenated MgH_(2)took 60 min to absorb only 4.6 wt.%H_(2)at 215℃.The microstructure analysis confirmed that the in-situ generated Mg_(2)Ni/Mg_(2)N_(i)H_(4) and metallic V contributed significantly to the enhanced performance of MgH_(2).In addition,the presence of rGO in the MgH_(2)+7 wt.%Ni_(3)V_(2)O_(8)-rGO composite reduced particle aggregation tendency of Mg/MgH_(2),leading to improving the cyclic stability of MgH_(2)during 20 cycles.

关键词： hydrogen storage properties MgH_(2) graphene-loaded Ni−V bimetal oxides catalytic mechanism

前庭刺激对自闭症谱系障碍儿童语言障碍的疗效分析

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广西科学 2024年第2期31卷 389-394页

作者：卢川龙耀斌广西医科大学第二附属医院广西南宁530007

本研究将前庭刺激与常规语言训练相结合,观察评价其对自闭症谱系障碍(Autism Spectrum Disorder,ASD)儿童语言障碍的影响。研究选取60例ASD且伴有语言障碍的儿童,随机分为对照组(n=30)和实验组(n=30)。对照组给予常规语言训练,实验组在... 详细信息

本研究将前庭刺激与常规语言训练相结合,观察评价其对自闭症谱系障碍(Autism Spectrum Disorder,ASD)儿童语言障碍的影响。研究选取60例ASD且伴有语言障碍的儿童,随机分为对照组(n=30)和实验组(n=30)。对照组给予常规语言训练,实验组在对照组的基础上接受前庭刺激治疗(利用宇航员旋转板及Bobath球),每次训练均在治疗师的指导下进行。分别于治疗前、治疗8周后对2组患儿的自闭症儿童行为量表(Autism Behavior Checklist,ABC)语言障碍评分和儿童语言发育迟缓检查法(Sign-Significant relations,S-S法)评级结果进行评价分析。结果表明:治疗8周后,2组患儿ABC语言障碍评分较治疗前降低,S-S法评级较治疗前提高,实验组疗效明显优于对照组(P<0.05)。综上可知,前庭刺激联合常规语言训练对改善ASD儿童语言障碍的效果较单纯常规语言训练更为显著。

关键词：前庭康复感觉统合训练自闭症谱系障碍语言障碍 Bobath球

从“社会批判”到“设计批评”——《黑暗时代的设计:阿伦特辞典》评述

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工业工程设计 2024年第1期6卷 11-18页

作者：卢川西安美术学院西安710065 中国艺术研究院北京100029

通过分析《黑暗时代的设计:阿伦特辞典》的体例与内容,对其借用思想家汉娜·阿伦特的哲学与政治学观念,对设计问题进行批判的研究方法与结果进行了评述,并进一步探讨社会批判与设计批评及其实践相结合的研究路径。

关键词：《黑暗时代的设计:阿伦特辞典》设计理论设计批评

基于铅铋快堆的直流蒸汽发生器稳态与瞬态特性分析

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核动力工程 2024年第2期45卷 103-109页

作者：黄哲梁铁波杨雯卢川李洋何中海沈昕上海交通大学机械与动力工程学院上海200240 中国核动力研究设计院核反应堆系统设计技术重点实验室成都610213

铅铋快堆的安全稳定运行与换热器一二次侧间的散热性能密切相关。本研究通过建立基于铅铋快堆的直流蒸汽发生器(OTSG)稳态与瞬态耦合分布参数模型,分析对比了不同负荷条件下OTSG内部热工水力特性的分布差异,并进一步揭示了铅铋快堆一次... 详细信息

铅铋快堆的安全稳定运行与换热器一二次侧间的散热性能密切相关。本研究通过建立基于铅铋快堆的直流蒸汽发生器(OTSG)稳态与瞬态耦合分布参数模型,分析对比了不同负荷条件下OTSG内部热工水力特性的分布差异,并进一步揭示了铅铋快堆一次侧焓值及流量扰动对换热器动态散热性能的影响。结果表明:稳态传热时铅铋快堆一次侧温降主要集中在过冷沸腾及核态沸腾区,二次侧负荷减小将导致管壁面温度飞升前移;动态调节显示在设计工况下一次侧入口焓值仅下降5%,就可能导致铅铋快堆循环在90 s后进入事故工况。研究结果为铅铋快堆的OTSG动态流动换热特性研究及结构设计优化提供了有价值的建议。

关键词：铅铋快堆直流蒸汽发生器热工水力分析分布参数模型

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从标到本:论银屑病复发之本质

广州中医药大学学报 2024年第10期41卷 2621-2624页

作者：郭洁卢传坚广州中医药大学第二临床医学院广东广州510405 广州中医药大学第二附属医院岭南补土学术流派研究室广东广州510120 粤港澳中医药与免疫疾病研究联合实验室广东广州510120

银屑病复发一直是银屑病治疗中的难点,且随着生物制剂的广泛应用,这一问题未来会更突出。该课题组从银屑病的“脾肾阳虚是其根本,外邪触发是其诱因,血热瘀滞是其标象”的“本虚标实”病机观出发,提出银屑病的本质是一类内伤性疾病,银屑... 详细信息

银屑病复发一直是银屑病治疗中的难点,且随着生物制剂的广泛应用,这一问题未来会更突出。该课题组从银屑病的“脾肾阳虚是其根本,外邪触发是其诱因,血热瘀滞是其标象”的“本虚标实”病机观出发,提出银屑病的本质是一类内伤性疾病,银屑病的反复发作与其“以血热瘀阻为标,以脾肾亏虚为本”的病机特点密切相关;复发是因治疗手段仅抑制了“血热”之标象,而未能修复亏虚之本。故在银屑病的治疗中,固本之法应当贯穿始终,并结合其水湿停留、瘀血结滞之标实,重视祛湿与化瘀,方能取得更加稳定的整体疗效。

关键词：银屑病复发病因病机本虚标实固本祛湿化瘀

Weak Uniform Normal Structure and Fixed Points of Asymptotically Regular Semigroups

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Acta Mathematica Sinica,English Series 2004年第6期20卷 977-982页

作者： lu chuan ZENG Department of Mathematics Shanghai Normal University

Let X be a Banach space with a weak uniform normal structure and C a non–empty convex weakly compact subset of X. Under some suitable restriction, we prove that every asymptotically regular semigroup T = {T(t) : t ∈... 详细信息

关键词： Weak uniform normal structure Fixed point Exact Lipschitz constant Weakly convergent sequence coefficient Asymptotically regular semigroup

NUMERICAL SIMULATION OF VENTILATED CAVITATING FLOW AROUND A 2D FOIL

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Journal of Hydrodynamics 2005年第5期17卷 607-614页

作者： CHEN Xin lu chuan-jing Department of Engineering Mechanics Shanghai Jiaotong University Shanghai 200240 China

By using a pressure-based method and the finite volume method in the framework of the time dependent Reynolds-averaged Navier-Stokes equations, the authors studied the unsteady process of ventilated cavities generated forcing air through an orifice in a 2D hydrofoil without natural cavitation physically. The computation was carried out with the Volume Of Fluid （VOF） technique to track the gas-liquid two-phase interface. The results of simulation indicate that the ventilation rate is an important parameter in determining the morphology of cavity. There exists a critical value to convert sheet cavity into supereavity. A high ventilation rate can induce a two phase interface fluctuation and enable the ventilated eavitating flow to present a characteristic of periodicity.

关键词： ventilated cavity re entrant jet interface fluctuation Volume Of Fluid (VOF) techinique

A HOMOGENOUS-EQUILIBRIUM-MODEL BASED NUMERICAL CODE FOR CAVITATION FLOWS AND EVAluATION BY COMPUTATION CASES

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Journal of Hydrodynamics 2008年第2期20卷 186-194页

作者： CHEN Ying lu chuan-jing Department of Engineering Mechanics Shanghai Jiaotong University Shanghai 200240 China

A computer code, ELANEX, including several Homogenous-Equilibrium-Model （HEM） type cavitation models, were developed, to numerically simulate natural cavitation phenomena. The effectiveness of the code was checked by cavitation flows around the disk and cylinder body for a wide range of different cavitation numbers. Cavity profiles were compared with the analytic solution of disk and empirical formulae fitted from the experiment data, and contrast between different cavitation models were fulfilled as well. The cavity length and maximal cavity diameter were found to agree well with the analytic solutions, and detailed cavity profiles were in accordance with the experimental formula. Comparison with the hemisphere headed cylinder body presented a good agreement of the pressure coefficient with the experiment data. Reasonable drag-force coefficient variation and drag-force reduction effect were obtained.

关键词： cavitation numerical code disk hemisphere cavity profile pressure coefficient