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新型多功能硫化助剂WL207对NR/ESBR综合性能的影响

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特种橡胶制品 2024年第6期45卷 40-44页

作者：徐琳钞沈阳化工大学材料与科学工程学院辽宁沈阳110142

研究了新型多功能硫化助剂WL207对NR/ESBR并用胶共硫化、动态力学性能以及物理机械性能的影响,并通过扫描电子显微镜(SEM)、动态力学热性能(DMA)和差示扫描量热(DSC)等进行分析。结果表明,多官能团的结构特征赋予WL207交联与促进作用,... 详细信息

研究了新型多功能硫化助剂WL207对NR/ESBR并用胶共硫化、动态力学性能以及物理机械性能的影响,并通过扫描电子显微镜(SEM)、动态力学热性能(DMA)和差示扫描量热(DSC)等进行分析。结果表明,多官能团的结构特征赋予WL207交联与促进作用,与传统硫黄硫化体系相比,较好地实现了NR/ESBR共硫化,硫化胶抗湿滑性、物理机械性能优异,填料与橡胶间的相容性好;WL207用量为4.0份时,NR/ESBR并用胶的综合性能最佳。

关键词：新型多功能硫化助剂WL207 天然橡胶乳聚丁苯橡胶相容性共硫化

Si69与BIBP用量对EPDM力学性能和电绝缘性的影响

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绝缘材料 2022年第10期55卷 14-19页

作者：姜广照刘大晨徐琳钞沈阳化工大学辽宁沈阳110142

本文对比分析了不同用量的双三乙氧基甲硅烷基丙基四硫化物(Si69)和双叔丁基过氧化二异丙基苯(BIBP)对EPDM硫化特性、力学性能与电绝缘性的影响。结果表明:随着Si69和BIBP含量的增加,硫化速度增大,工艺正硫化时间缩短,最大扭矩增大,胶... 详细信息

本文对比分析了不同用量的双三乙氧基甲硅烷基丙基四硫化物(Si69)和双叔丁基过氧化二异丙基苯(BIBP)对EPDM硫化特性、力学性能与电绝缘性的影响。结果表明:随着Si69和BIBP含量的增加,硫化速度增大,工艺正硫化时间缩短,最大扭矩增大,胶料的交联密度提高,力学性能有所改善;其中随着Si69含量的增加,胶料的电绝缘性降低;而随着BIBP含量的增加,胶料的电绝缘性逐渐提高。

关键词：三元乙丙橡胶复合交联结构 Si69 BIBP 力学性能电绝缘性

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舟山跨海大桥非通航孔箱梁桥腹板开裂分析

公路工程 2013年第6期38卷 43-48页

作者：许麟超张南沈浩南京工业大学土木工程学院江苏南京210009 江苏省交通科学研究院股份有限公司江苏南京211112

针对舟山跨海大桥非通航孔箱梁桥的腹板开裂问题,通过有限元模拟和检测数据分析,研究得出腹板开裂的原因有施工阶段预应力锚后劈裂力和临时支座设置不当的综合影响,并提出了计算这类腹板开裂的方法和施工中的防裂措施。本文研究结果对... 详细信息

针对舟山跨海大桥非通航孔箱梁桥的腹板开裂问题,通过有限元模拟和检测数据分析,研究得出腹板开裂的原因有施工阶段预应力锚后劈裂力和临时支座设置不当的综合影响,并提出了计算这类腹板开裂的方法和施工中的防裂措施。本文研究结果对于防止类似的箱梁桥腹板开裂,提高跨海大桥的耐久性有一定的工程参考意义。

关键词：箱梁桥腹板开裂有限元

基于LabVIEW的心电监护仪自动检定系统的研发

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计算机应用与软件 2018年第8期35卷 128-132页

作者：李林超徐文龙徐冰俏中国计量大学信息工程学院浙江杭州310018

目前多参数监护仪心电功能检定由人工完成,不仅工作量大,而且原始数据和检验结果的真实性可靠性易受质疑。依据国家计量检定规程JJG760-2003《心电监护仪》,基于Lab VIEW虚拟仪器为平台研发了一套自动检定系统。通过控制标准源产生待检... 详细信息

目前多参数监护仪心电功能检定由人工完成,不仅工作量大,而且原始数据和检验结果的真实性可靠性易受质疑。依据国家计量检定规程JJG760-2003《心电监护仪》,基于Lab VIEW虚拟仪器为平台研发了一套自动检定系统。通过控制标准源产生待检定标准信号传输到多参数监护仪输入端,多参数监护仪对待检定标准信号进行检测,并将监测结果返回给检定系统。检定系统采集监测数据,根据检定规程要求记录原始数据,进行数据分析,根据数据形成检定报告。测试结果表明,检定系统可以替代现有人工检定,达到缩短检定时间提高效率,提升鉴定结果可信度的目的。

关键词：自动检定系统检定规程 LabVIEW 多参数监护仪

新型多功能硫化助剂WL207在天然橡胶/溶聚丁苯橡胶并用胶中的应用

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橡胶科技 2023年第4期21卷 174-179页

作者：徐琳钞刘大晨王志强沈阳化工大学材料与科学工程学院辽宁沈阳110142 蔚林新材料科技股份有限公司河南濮阳457163

采用新型多功能硫化助剂WL207(简称WL207)替代传统硫化体系中的硫化剂和促进剂,研究其对天然橡胶(NR)/溶聚丁苯橡胶(SSBR)并用子午线轮胎胎面胶性能的影响。多官能团的结构特征使WL207兼具交联、促进和活化作用。结果表明:与普通硫黄硫... 详细信息

采用新型多功能硫化助剂WL207(简称WL207)替代传统硫化体系中的硫化剂和促进剂,研究其对天然橡胶(NR)/溶聚丁苯橡胶(SSBR)并用子午线轮胎胎面胶性能的影响。多官能团的结构特征使WL207兼具交联、促进和活化作用。结果表明:与普通硫黄硫化体系胶料相比,采用WL207的胶料的硫化速度和硫化程度相当,抗硫化返原性能较好;WL207与胶料的相容性好,易分散,不喷霜;硫化胶硬度低、耐磨性能好,可平衡抗湿滑性能与物理性能;使用WL207可实现NR/SSBR较好地相容及共硫化。

关键词：多功能硫化助剂子午线轮胎抗湿滑性能物理性能相容性共硫化

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Matlab与实验相结合测量载流圆线圈磁场的新方法探究

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物理通报 2024年第1期 116-121页

作者：徐林超邓明向文丽楚雄师范学院物理与电子科学学院云南楚雄675000

通过搭建RLC串联谐振与电磁感应法测量载流圆线圈磁场的理想化模型,利用Matlab编程仿真,模拟不同电容与载流圆线圈串联达到谐振时,具有串联电容C越小,感应电动势U_(m)越大的分布规律.Matlab仿真结果说明RLC串联谐振改进电磁感应法测量... 详细信息

通过搭建RLC串联谐振与电磁感应法测量载流圆线圈磁场的理想化模型,利用Matlab编程仿真,模拟不同电容与载流圆线圈串联达到谐振时,具有串联电容C越小,感应电动势U_(m)越大的分布规律.Matlab仿真结果说明RLC串联谐振改进电磁感应法测量载流圆线圈磁场科学可行,并对实际实验提供指导.实际实验效果最佳的3种电容即0.099μF、0.100μF、0.11μF中,U_(m)实测结果符合Matlab仿真规律.最小电容即电容为0.099μF时,圆线圈中心磁场测量误差仅为2.23%,精确度最高,远远高于传统电磁感应法测量误差15.67%.基于Matlab与实验相结合设计了一种测量载流圆线圈磁场的新方法,操作简便,现象明显,精确可靠,可推广到其他不同类型的线圈激发的弱磁场测量.

关键词：载流圆线圈电磁感应法磁场分布 Matlab仿真

Aquaporin-4-IgG-seropositive neuromyelitis optica spectrum disorders:progress of experimental models based on disease pathogenesis

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Neural Regeneration Research 2025年第2期20卷 354-365页

作者： Li xu Huiming xu Changyong Tang Department of Neurology The Third Affiliated Hospital of Sun Yat-sen UniversityGuangzhouGuangdong ProvinceChina

Neuromyelitis optica spectrum disorders are neuroinflammatory demyelinating disorders that lead to permanent visual loss and motor *** date,no effective treatment exists as the exact causative mechanism remains ***,experimental models of neuromyelitis optica spectrum disorders are essential for exploring its pathogenesis and in screening for therapeutic *** most patients with neuromyelitis optica spectrum disorders are seropositive for IgG autoantibodies against aquaporin-4,which is highly expressed on the membrane of astrocyte endfeet,most current experimental models are based on aquaporin-4-IgG that initially targets *** experimental models have successfully simulated many pathological features of neuromyelitis optica spectrum disorders,such as aquaporin-4 loss,astrocytopathy,granulocyte and macrophage infiltration,complement activation,demyelination,and neuronal loss;however,they do not fully capture the pathological process of human neuromyelitis optica spectrum *** this review,we summarize the currently known pathogenic mechanisms and the development of associated experimental models in vitro,ex vivo,and in vivo for neuromyelitis optica spectrum disorders,suggest potential pathogenic mechanisms for further investigation,and provide guidance on experimental model *** addition,this review summarizes the latest information on pathologies and therapies for neuromyelitis optica spectrum disorders based on experimental models of aquaporin-4-IgG-seropositive neuromyelitis optica spectrum disorders,offering further therapeutic targets and a theoretical basis for clinical trials.

关键词： aquaporin-4 experimental model neuromyelitis optica spectrum disorder pathogenesis

Reducing the measurement errors in nonadiabatic holonomic quantum computers

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Science China(Physics,Mechanics & Astronomy) 2025年第1期Mechanics & Astronomy) .卷 64-70页

作者： Guo-Fu xu Department of Physics Shandong University

Nonadiabatic holonomic quantum computers serve as the physical platform for nonadiabatic holonomic quantum *** quantum computation has entered the noisy intermediate-scale era, building accurate intermediate-scale nonadiabatic holonomic quantum computers is clearly necessary. Given that measurements are the sole means of extracting information, they play an indispensable role in nonadiabatic holonomic quantum computers. Accordingly, developing methods to reduce measurement errors in nonadiabatic holonomic quantum computers is of great importance. However, while much attention has been given to the research on nonadiabatic holonomic gates, the research on reducing measurement errors in nonadiabatic holonomic quantum computers is severely lacking. In this study, we propose a measurement error reduction method tailored for intermediate-scale nonadiabatic holonomic quantum computers. The reason we say this is because our method can not only reduce the measurement errors in the computer but also be useful in mitigating errors originating from nonadiabatic holonomic gates. Given these features,our method significantly advances the construction of accurate intermediate-scale nonadiabatic holonomic quantum computers.

关键词： quantum holonomy quantum computation measurement errors

Mitophagy in acute central nervous system injuries:regulatory mechanisms and therapeutic potentials

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Neural Regeneration Research 2025年第9期20卷 2437-2453页

作者： Siyi xu Junqiu Jia Rui Mao Xiang Cao Yun xu Department of Neurology Nanjing Drum Tower HospitalClinical College of Jiangsu UniversityNanjingJiangsu ProvinceChina Department of Neurology Nanjing Drum Tower HospitalChinese Academy of Medical Science&Peking Union Medical CollegeNanjingJiangsu ProvinceChina Department of Neurology Nanjing Drum Tower HospitalAffiliated Hospital of Medical SchoolNanjing UniversityNanjingJiangsu ProvinceChina State Key Laboratory of Pharmaceutical Biotechnology and Institute of Translational Medicine for Brain Critical Diseases Nanjing UniversityNanjingJiangsu ProvinceChina Jiangsu Key Laboratory for Molecular Medicine Medical School of Nanjing UniversityNanjingJiangsu ProvinceChina Nanjing Neurology Medical Center NanjingJiangsu ProvinceChina

Acute central nervous system injuries,including ischemic stro ke,intracerebral hemorrhage,subarachnoid hemorrhage,traumatic brain injury,and spinal co rd injury,are a major global health *** optimal therapies and improving the long-term neurological functions of patients with acute central nervous system injuries are urgent *** are susceptible to damage after acute central nervous system injury,and this leads to the release of toxic levels of reactive oxygen species,which induce cell ***,a selective form of autophagy,is crucial in eliminating redundant or damaged mitochondria during these *** evidence has highlighted the significant role of mitophagy in acute central nervous system *** this review,we provide a comprehensive overview of the process,classification,and related mechanisms of *** also highlight the recent developments in research into the role of mitophagy in various acute central nervous system injuries and drug therapies that regulate *** the final section of this review,we emphasize the potential for treating these disorders by focusing on mitophagy and suggest future research paths in this area.

关键词： autophagy intracerebral hemorrhage ischemic stroke mitochondria mitochondrial biogenesis mitochondrial quality control mitophagy spinal cord injury subarachnoid hemorrhage traumatic brain injury