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MoS_(2)Lubricate‑Toughened MXene/ANF Composites for Multifunctional Electromagnetic Interference Shielding

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Nano-Micro Letters 2025年第2期17卷 358-371页

作者： Jiaen wang Wei Ming longfu Chen Tianliang Song Moxi Yele Hao Zhang long Yang Gegen Sarula Benliang Liang Luting Yan Guangsheng wang School of Physical Science and Engineering Beijing Jiaotong UniversityBeijing 100044People’s Republic of China Key Laboratory of Bio‑Inspired Smart Interfacial Science and Technology of Ministry of Education School of ChemistryBeihang UniversityBeijing 100191People’s Republic of China

The design and fabrication of high toughness electromagnetic interference(EMI)shielding composite films with diminished reflection are an imperative task to solve electromagnetic pollution *** MXene/ANF(aramid nanofibers)–MoS_(2)composite films with nacre-like layered structure here are fabricated after the introduction of MoS_(2)into binary MXene/ANF composite *** introduction of MoS_(2)fulfills an impressive“kill three birds with one stone”improvement effect:lubrication toughening mechanical performance,reduction in secondary reflection pollution of electromagnetic wave,and improvement in the performance of photothermal *** the introduction of MoS_(2)into binary MXene/ANF(mass ratio of 50:50),the strain to failure and tensile strength increase from 22.1±1.7%and 105.7±6.4 MPa and to 25.8±0.7%and 167.3±9.1 MPa,*** toughness elevates from 13.0±4.1 to 26.3±0.8 MJ m^(−3)(~102.3%)*** the reflection shielding effectiveness(SE_(R))of MXene/ANF(mass ratio of 50:50)decreases~10.8%.EMI shielding effectiveness(EMI SE)elevates to 41.0 dB(8.2–12.4 GHz);After the introduction of MoS_(2)into binary MXene/ANF(mass ratio of 60:40),the strain to failure increases from 18.3±1.9%to 28.1±0.7%(~53.5%),the SE_(R)decreases~22.2%,and the corresponding EMI SE is 43.9 *** MoS_(2)also leads to a more efficient photothermal conversion performance(~45 to~55℃).Additionally,MXene/ANF–MoS_(2)composite films exhibit excellent electric heating performance,quick temperature elevation(15 s),excellent cycle stability(2,2.5,and 3 V),and long-term stability(2520 s).Combining with excellent mechanical performance with high MXene content,electric heating performance,and photothermal conversion performance,EMI shielding ternary MXene/ANF–MoS_(2)composite films could be applied in many industrial *** work broadens how to achieve a balance between mechanical properties and versatility of composites in the case of high-function fillers.

关键词： MXene-MoS_(2) Lubrication toughening EMI shielding Photothermal conversion Electric heating performance

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杆状病毒p74基因具有种属特异性

生物化学与生物物理学报 2003年第9期35卷 834-840页

作者：吴无畏王瑾雯谢菲龙綮新王珣章中山大学生物防治国家重点实验室中山大学生物防治国家重点实验室广州510275

选用苜蓿丫纹夜蛾核多角体病毒杆粒 (AcMNPVbacmid)为材料 ,通过在大肠杆菌中利用RecA基因介导的同源重组 ,将其p74基因剔除 ,并精确地用斜纹夜蛾核多角体病毒 (SpltMNPV)的p74基因进行了替换。所构建的重组AcMNPV杆粒在修饰后的p74基... 详细信息

选用苜蓿丫纹夜蛾核多角体病毒杆粒 (AcMNPVbacmid)为材料 ,通过在大肠杆菌中利用RecA基因介导的同源重组 ,将其p74基因剔除 ,并精确地用斜纹夜蛾核多角体病毒 (SpltMNPV)的p74基因进行了替换。所构建的重组AcMNPV杆粒在修饰后的p74基因位点中未留下任何有可能影响该基因表达及功能的选择标记 ,SpltMNPV的p74基因直接位于AcMNPVp74基因的启动子控制下。RT PCR显示替换后的p74基因得到了表达。生物测定结果显示 ,重组病毒AcMNPV杆粒 polhSL74无法通过口服方式感染银纹夜蛾幼虫 ,表明杆状病毒p74基因具有种属特异性。

关键词：杆状病毒 p74基因 RecA介导的同源重组种属特异性

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液压挖掘机功率匹配节能方法研究

建筑机械 2007年第12S期27卷 65-68,76页

作者：陈欠根费望龙蒋苹中南大学机电工程学院湖南长沙410083

通过对目前广泛用于液压挖掘机的几种功率匹配节能方法的深入分析,提出了一种由混合动力系统实现液压挖掘机全局功率匹配节能的方法,研究了混合动力系统全局功率匹配的机理,探讨了混合动力全局功率匹配在液压挖掘机上的工程实现。

关键词：液压挖掘机节能混合动力全局功率匹配

The complex effects of miR-146a in the pathogenesis of Alzheimer's disease

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Neural Regeneration Research 2025年第5期20卷 1309-1323页

作者： Yunfan long Jiajia Liu Yu wang Haidong Guo Guohong Cui Department of Neurology Shanghai No.9 People’s HospitalShanghai Jiaotong University School of MedicineShanghaiChina Academy of Integrative Medicine Shanghai University of Traditional Chinese MedicineShanghaiChina School of Integrative Medicine Shanghai University of Traditional Chinese MedicineShanghaiChina Department of Neurology Shuguang Hospital Affiliated to Shanghai University of Traditional Chinese MedicineShanghaiChina

Alzheimer's disease is a neurodegenerative disorder characterized by cognitive dysfunction and behavioral *** plaques formed through the extracellular deposition of amyloid-βproteins,as well as neurofibrillary tangles formed by the intracellular deposition of hyperphosphorylated tau proteins,comprise two typical pathological features of Alzheimer's *** symptomatic treatment,there are no effective therapies for delaying Alzheimer's disease ***(miR)are small,non-coding RNAs that negatively regulate gene expression at the transcriptional and translational levels and play important roles in multiple physiological and pathological ***,miR-146a,a NF-κB-regulated gene,has been extensively implicated in the development of Alzheimer's disease through several *** has demonstrated substantial dysregulation of miR-146a both during the initial phases and throughout the progression of this *** R-146a is believed to reduce amyloid-βdeposition and tau protein hyperphosphorylation through the TLR/IRAK1/TRAF6 pathway;however,there is also evidence supporting that it can promote these processes through many other pathways,thus exacerbating the pathological manifestations of Alzheimer's *** has been widely reported that miR-146a mediates synaptic dysfunction,mitochondrial dysfunction,and neuronal death by targeting m RNAs encoding synapticrelated proteins,mitochondrial-related proteins,and membrane proteins,as well as other *** the impact on glial cells,miR-146a also exhibits differential *** one hand,it causes widespread and sustained inflammation through certain pathways,while on the other hand,it can reverse the polarization of astrocytes and microglia,alleviate neuroinflammation,and promote oligodendrocyte progenitor cell differentiation,thus maintaining the normal function of the myelin sheath and exerting a protective effect on *** this review,we provide a

关键词： Alzheimer's disease amyloid-β glial cells microRNAs miR-146a neuroinflammatory

基于小波包和遗传BP神经网络的缸套-活塞组磨损研究

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内燃机车 2008年第2期 14-17页

作者：陈欠根袁东来费望龙中南大学机电工程学院湖南山河智能机械股份有限公司湖南长沙410100

采用对比试验的方法,研究了柴油机缸套-活塞组磨损对气缸漏气率和燃油消耗量的影响。针对柴油机缸套-活塞组不同的磨损运行状态,利用机身振动信号进行了研究。然后,利用小波包时频分析方法进行特征量提取,最终利用遗传算法改进后的BP神... 详细信息

采用对比试验的方法,研究了柴油机缸套-活塞组磨损对气缸漏气率和燃油消耗量的影响。针对柴油机缸套-活塞组不同的磨损运行状态,利用机身振动信号进行了研究。然后,利用小波包时频分析方法进行特征量提取,最终利用遗传算法改进后的BP神经网络实现了磨损故障模式识别。

关键词：磨损缸套-活塞组振动信号小波包遗传BP神经网络

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基于激光拍频实现啁啾光纤光栅色散的测量

光子学报 2017年第2期46卷 99-103页

作者：王旭李小康张豪杰温泉陈龙飞王芳刘玉芳河南师范大学电子与电气工程学院河南新乡453007

以啁啾光纤光栅为例,研究了激光拍频的产生机制,并建立对啁啾光纤光栅色散的测量模型.详细阐述了系统结构和测量原理,并对测量结果和理论值进行了分析与比较,结果一致性较好.在频谱分析仪分辨率为2.5kHz的情况下,色散测量准确度可以达到... 详细信息

以啁啾光纤光栅为例,研究了激光拍频的产生机制,并建立对啁啾光纤光栅色散的测量模型.详细阐述了系统结构和测量原理,并对测量结果和理论值进行了分析与比较,结果一致性较好.在频谱分析仪分辨率为2.5kHz的情况下,色散测量准确度可以达到0.1ps,啁啾光纤光栅色散的实际测量也证实了该系统的可行性,系统相对简单,测量准确度高,可为色散测量提供参考.

关键词：光纤激光色散拍频啁啾光纤光栅

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液压同步控制在摊铺机液压系统中的应用

液压与气动 2012年第9期36卷 89-91页

作者：黄志建姜维费望龙三一重工股份有限公司湖南长沙410100

该文通过分析摊铺机液压控制系统,介绍了几种液压同步系统在摊铺机中的实际应用及特点。

关键词：摊铺机液压系统液压同步

Componentwise Exponential Stability of Neural Networks With Variable Delays

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Componentwise Exponential Stability of Neural Networks With ...

嵌段磺化聚芳醚砜阳离子交换膜的制备及在MFC中的发电性能研究

2003年中国智能自动化会议

作者： Tianguang Chu, fei Hao, and long wang Intelligent Control Laboratory, Center for Systems and Control Department of Mechanics and Engineering Science Peking University, Beijing 100871, P. R. China

We present componentwise exponential stability conditions for neural networks with variable delays. The conditions also yield global exponential convergence in the neural networks. We obtain the results by means of the comparison method for delay systems. It does not resort to any Lyapunov functional and is simple yet effective in evaluating trajectory behavior of the delayed neural networks. Compared with some recent results via Lyapunov method in the literature, the present method results in more detailed estimates on decay rate and trajectory bounds for the systems under the same or weaker conditions.

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来源： cnki会议评论

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高分子学报 2014年第5期24卷 657-663页

作者：王飞龙冉冬琴张彤毕慧平胡朝霞陈守文南京理工大学环境与生物工程学院南京210094

采用嵌段共聚制备了具有不同链段长度的非磺化／磺化多嵌段型磺化聚芳醚砜阳离子交换膜（bSPAES），研究了bSPAES膜在微生物燃料电池（MFC）作为分离膜的性能．由于在亲水磺化部分引入了刚性更强的芴结构，bSPAES膜表现了更好的尺寸稳... 详细信息

采用嵌段共聚制备了具有不同链段长度的非磺化／磺化多嵌段型磺化聚芳醚砜阳离子交换膜（bSPAES），研究了bSPAES膜在微生物燃料电池（MFC）作为分离膜的性能．由于在亲水磺化部分引入了刚性更强的芴结构，bSPAES膜表现了更好的尺寸稳定性和水解稳定性．链段长度控制在10—30的bSPAES膜在30℃水中的尺寸变化表现为各向同性，介于10％～20％之间．bSPAES膜的质子导电率为81～140mS／cm，远超过商用的ULTREXCMI-7000．经过1000hMFC运行后，bSPAES膜电导率几乎没有发生降低．100℃24h高温水稳定性试验表明，bSPAES膜的失重率仅在1．5％～6．3％之间．MFC最大功率密度也随着bSPAES中链段长度的增加而提高，链段长度为15～30的bSPAES膜的MFC产电性能优于商用ULTREXCMI-7000膜，bSPAES（30／30）膜在MFC中的最大功率密度达到705mW／m2．

关键词：微生物燃料电池嵌段磺化聚芳醚砜产电性能