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Electrochemical conversion of methane to bridge the gap in the artificial carbon cycle

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Journal of Energy Chemistry 2025年第1期100卷 286-308页

作者： Yuhao peng Yuefeng Song Ihar Razanau Juanxiu xiao Wei xiao Di Hu Guoxiong Wang College of Chemistry and Molecular Sciences Hubei Key Laboratory of Electrochemical Power Sources Wuhan University State Key Laboratory of Catalysis Dalian National Laboratory for Clean Energy iChEM (Collaborative Innovation Center of Chemistry for Energy Materials) Dalian Institute of Chemical Physics Chinese Academy of Sciences Laboratory of Physical-Chemical Technologies SSPA Scientific and Practical Materials Research Centre of NAS of Belarus State Key Laboratory of Marine Resources Utilization in South China Sea Collaborative Innovation Center of Marine Science and Technology School of Marine Science and Engineering Hainan University Department of Chemical and Environmental Engineering University of Nottingham Ningbo China

Methane, an abundant one-carbon（C1） resource, is extensively used in the industrial production of vital fuels and value-added chemicals. However, current industrial methane conversion technologies are energy-and carbon-intensive, mainly due to the high activation energy required to break the inert C–H bond, low selectivity, and problematic side reactions, including CO2emissions and coke deposition. Electrochemical conversion of methane（ECM） using intermittent renewable energy offers an attractive solution, due to its modular reactor design and operational flexibility across a broad spectrum of temperatures and pressures. This review emphasizes conversion pathways of methane in various reaction systems, highlighting the significance and advantages of ECM in facilitating a sustainable artificial carbon cycle. This work provides a comprehensive overview of conventional methane activation mechanisms and delineates the complete pathways of methane conversion in electrolysis contexts. Based on surface/interface chemistry, this work systematically analyzes proposed reaction pathways and corresponding strategies to enhance ECM efficiency towards various target products, including syngas, hydrocarbons, oxygenates, and advanced carbon materials. The discussion also encompasses opportunities and challenges for the ECM process, including insights into ECM pathways, rational electrocatalyst design, establishment of benchmarking protocols, electrolyte engineering, enhancement of CH4conversion rates, and minimization of CO2emission.

关键词： Methane Electrochemical conversion Reaction mechanism Catalyst design Electrode Electrocatalysis

Observation of acoustic hybrid topological phases induced by the p-d orbital interactions

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Science China(Physics,Mechanics & Astronomy) 2025年第1期Mechanics & Astronomy) .卷 132-139页

作者： xiao Xiang Feng Gao Yu-Gui peng peng Wu Zong-Lin Li Xue-Feng Zhu School of Physics and Innovation Institute Huazhong University of Science and Technology

In spinless systems,growing attention has recently been attracted to synthetic gauge fields,which redefine the fundamental crystal symmetries by utilizing the projective algebraic ***,synthetic gauge fields have been commonly investigated in single orbital systems,and explorations on hybrid orbitals remain elusive in ***,we report the experimental observation of hybrid topological phases induced by hybrid synthetic gauge flux,which is formed by the interaction between p and d orbitals embedded in acoustic *** breaking the translation symmetries of Lxand/or Ly,we unambiguously demonstrate the first-order M?bius edge states and higher-order corner *** work establishes a platform for seeking exotic topological phases induced by hybrid-orbitals interactions and initializing the framework of hybrid-orbitalsrelated topological *** applications can be anticipated in scenarios such as high-quality sensing and robust wave trapping due to the stepwise energy distribution of the hybrid topological phase.

关键词： topological insulator synthetic gauge field projective symmetry corner states

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考虑相变的铝合金管焊接残余应力数值模拟

材料工程 2013年第4期41卷 34-38页

作者：廖娟凌泽民彭小洋重庆大学材料科学与工程学院重庆400044

以铝合金薄壁管的对接接头为研究对象,根据实际情况建立了其热-冶金-力学耦合的三维有限元模型,运用SY-SWELD软件在考虑相变情况下对其焊接过程温度场与轴向和环向残余应力分布进行数值计算与分析,与实验结果进行对比验证了该模型的准... 详细信息

以铝合金薄壁管的对接接头为研究对象,根据实际情况建立了其热-冶金-力学耦合的三维有限元模型,运用SY-SWELD软件在考虑相变情况下对其焊接过程温度场与轴向和环向残余应力分布进行数值计算与分析,与实验结果进行对比验证了该模型的准确性。此外,还分析了铝合金管半径变化对残余应力分布的影响规律。结果表明:相变对轴向最大拉应力与环向最大拉应力和压应力都有明显的影响,且考虑相变能更准确地模拟轴向和环向残余应力;在考虑相变情况下,焊接残余应力随半径的增大而增加;并且在不同的半径条件下,距焊缝中心不同距离上的应力分布有着一致的变化趋势。

关键词：铝合金相变残余应力数值模拟

Rosenblueth方法在深基坑抗隆起可靠度分析中的应用

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岩土力学 2005年第7期26卷 1132-1135页

作者：彭海铭常为华彭孝扬胡春华武汉大学土木建筑工程学院武汉430072 北京科技大学土木与环境工程学院北京100083 湖北工建三公司武汉430070 湖北省环境科学研究院武汉430072

由于岩土参数具有很大的不确定性,在深基坑抗隆起稳定性分析中高安全系数并不一定安全。为此,提出了深基坑抗隆起稳定性可靠度分析方法,基于Rosenblueth方法开发了相应计算程序,研究了土性参数c,?变异性对可靠指标的影响,并通过实例分... 详细信息

由于岩土参数具有很大的不确定性,在深基坑抗隆起稳定性分析中高安全系数并不一定安全。为此,提出了深基坑抗隆起稳定性可靠度分析方法,基于Rosenblueth方法开发了相应计算程序,研究了土性参数c,?变异性对可靠指标的影响,并通过实例分别运用可靠度和安全系数分析方法分析深基坑抗隆起稳定性。结果表明:可靠度分析方法具有科学性和合理性,同时体现了Rosenblueth方法在复杂功能函数中进行可靠指标计算的优越性。

关键词：深基坑抗隆起稳定性可靠度

Reduced mesencephalic astrocyte-derived neurotrophic factor expression by mutant androgen receptor contributes to neurodegeneration in a model of spinal and bulbar muscular atrophy pathology

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Neural Regeneration Research 2025年第9期20卷 2655-2666页

作者： Yiyang Qin Wenzhen Zhu Tingting Guo Yiran Zhang Tingting Xing peng Yin Shihua Li xiao-Jiang Li Su yang Guangdong Key Laboratory of Non-human Primate Research Key Laboratory of CNS Regeneration(Ministry of Education)Guangdong–HongKong–Macao Institute of CNS RegenerationJinan UniversityGuangzhouGuangdong ProvinceChina

Spinal and bulbar muscular atrophy is a neurodegenerative disease caused by extended CAG trinucleotide repeats in the androgen receptor gene,which encodes a ligand-dependent transcription facto *** mutant androgen receptor protein,characterized by polyglutamine expansion,is prone to misfolding and forms aggregates in both the nucleus and cytoplasm in the brain in spinal and bulbar muscular atrophy *** aggregates alter protein-protein interactions and compromise transcriptional *** this study,we reported that in both cultured N2a cells and mouse brain,mutant androgen receptor with polyglutamine expansion causes reduced expression of mesencephalic astrocyte-de rived neurotrophic *** n of mesencephalic astrocyte-derived neurotrophic factor amelio rated the neurotoxicity of mutant androgen receptor through the inhibition of mutant androgen receptor *** down endogenous mesencephalic astrocyte-derived neurotrophic factor in the mouse brain exacerbated neuronal damage and mutant androgen receptor *** findings suggest that inhibition of mesencephalic astrocyte-derived neurotrophic factor expression by mutant androgen receptor is a potential mechanism underlying neurodegeneration in spinal and bulbar muscular atrophy.

关键词： androgen receptor mesencephalic astrocyte-derived neurotrophic factor mouse model neurodegeneration neuronal loss neurotrophic factor polyglutamine disease protein misfolding spinal and bulbar muscular atrophy transcription factor

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伪码激光引信抗干扰性能的蒙特卡洛仿真研究

系统仿真学报 2008年第20期20卷 5691-5694页

作者：闫晓鹏栗苹杨倩北京理工大学宇航科学技术学院北京100081

对基于伪随机码的脉冲激光引信的抗干扰性能进行了仿真研究。建立伪随机码激光引信的作用距离方程模型基础上,从伪随机码的自相关特性出发,分析了伪随机码激光引信的抗干扰性能。结合激光引信特点建立了脉冲体制激光引信的虚警概率和探... 详细信息

对基于伪随机码的脉冲激光引信的抗干扰性能进行了仿真研究。建立伪随机码激光引信的作用距离方程模型基础上,从伪随机码的自相关特性出发,分析了伪随机码激光引信的抗干扰性能。结合激光引信特点建立了脉冲体制激光引信的虚警概率和探测概率模型,分别对基于周期脉冲激光引信和伪随机码脉冲激光引信的探测概率和虚警概率进行了蒙特卡洛计算方法的统计模拟数值仿真。仿真表明,伪随机码脉冲激光引信具有很强的抗干扰性能。

关键词：蒙特卡洛仿真激光引信伪随机码抗干扰

失独人群文化创伤:形成过程、演化逻辑和再造

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西北师大学报（社会科学版） 2017年第5期54卷 45-51页

作者：徐晓军彭扬帆华中师范大学社会学院湖北武汉430079

文化创伤的发生,实际上是群体成员从创伤体验到创伤记忆的形成过程,其中要经历创伤经验的集体化、社会文化的想象化和创伤记忆的共享化三个阶段。基于失独事实的文化创伤演化逻辑表现出了从个人认知到集体认同、从客观事实到自觉建构、... 详细信息

文化创伤的发生,实际上是群体成员从创伤体验到创伤记忆的形成过程,其中要经历创伤经验的集体化、社会文化的想象化和创伤记忆的共享化三个阶段。基于失独事实的文化创伤演化逻辑表现出了从个人认知到集体认同、从客观事实到自觉建构、从私人领域到公共话语三个维度的转向。正因如此,导致失独人群的创伤记忆共同指向于独立生命价值形态的碎裂、情感主义状态的累积与牵绊以及单一苦感叙事的沉溺与重复。迈向破碎个体创伤的整合、迈向纯粹情感主义状态的跳脱和迈向单一苦感叙事的升华,可以完成失独人群创伤记忆的意义生产。

关键词：失独人群文化创伤创伤体验创伤记忆

GS-ASTFA方法及其在滚动轴承寿命预测中的应用

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振动与冲击 2017年第11期36卷 14-19页

作者：欧龙辉彭晓燕杨宇程军圣湖南大学汽车车身先进设计制造国家重点实验室长沙410082

自适应最稀疏时频分析(Adaptive and Sparsest Time-Frequency Analysis,ASTFA)方法是一种新的信号分解方法,该方法将信号分解问题转化为优化问题,以得到信号的最稀疏解。优化过程采用高斯-牛顿迭代算法,但高斯-牛顿迭代算法对初值依赖... 详细信息

自适应最稀疏时频分析(Adaptive and Sparsest Time-Frequency Analysis,ASTFA)方法是一种新的信号分解方法,该方法将信号分解问题转化为优化问题,以得到信号的最稀疏解。优化过程采用高斯-牛顿迭代算法,但高斯-牛顿迭代算法对初值依赖性高,采用黄金分割法(Golden Section,GS)对ASTFA方法进行初值搜索,提出了基于黄金分割搜索初值的ASTFA方法(GS-ASTFA),仿真信号的分析结果验证了改进方法的有效性。继而采用该方法提取了滚动轴承故障特征值,并成功地进行了故障特征值趋势分析和寿命预测。

关键词：自适应最稀疏时频分析黄金分割法趋势分析寿命预测

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大型化工装置仪表自控系统的故障应对措施

化工管理 2022年第36期 139-141页

作者：彭晓阳中石化第四建设有限公司电气仪表工程公司天津300270

化工产业是中国国民经济中的支柱,在化工产品生产的过程中为了保障产品质量,生产过程中在化工装置上安置仪表自控系统,实时监控生产时的温度、湿度、压力等各项数值。化工装置仪表的自控系统较为复杂,一旦自控系统出现问题,未能将数据... 详细信息

化工产业是中国国民经济中的支柱,在化工产品生产的过程中为了保障产品质量,生产过程中在化工装置上安置仪表自控系统,实时监控生产时的温度、湿度、压力等各项数值。化工装置仪表的自控系统较为复杂,一旦自控系统出现问题,未能将数据信息及时反馈到总控制平台,不仅会影响生产的质量,甚至会造成严重的安全事故。文章分析了大型化工装置仪表中自控系统容易出现的故障,并且提出故障的处理措施,确保化工企业能够安全运行。

关键词：仪表自控系统实时监控故障