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High-silica faujasite zeolite-tailored metal encapsulation for the low-temperature production of pentanoic biofuels

Journal of Energy Chemistry 2024年第1期88卷 552-560,I0012页

作者： Wenhao Cui Yuanshuai Liu Pengfei Guo zhijie Wu Liqun Kang Huawei Geng Shengqi Chu Linying Wang Dong Fan Zhenghao jia Haifeng Qi Wenhao Luo Peng Tian Zhongmin Liu National Engineering Research Center of Lower-Carbon Catalysis Technology Dalian National Laboratory for Clean EnergyDalian Institute of Chemical PhysicsChinese Academy of SciencesDalian 116023LiaoningChina University of Chinese Academy of Sciences Beijing 100049China Qingdao Institute of Bioenergy and Bioprocess Technology Chinese Academy of SciencesQingdao 266101ShandongChina College of Chemistry and Chemical Engineering Inner Mongolia UniversityHohhot 010021Inner MongoliaChina State Key Laboratory of Heavy Oil Processing and Key Laboratory of Catalysis of CNPC China University of PetroleumBeijing 102249China Department of Inorganic Spectroscopy Max Planck Institute for Chemical Energy ConversionMülheim an der Ruhr 45470Germany Beijing Synchrotron Radiation Facility Institute of High Energy PhysicsChinese Academy of SciencesBeijing 100049China Division of Energy Research Resources Dalian Institute of Chemical PhysicsChinese Academy of SciencesDalian 116023LiaoningChina Leibniz-Institut für Katalyse Albert-Einstein-Straβe 29aRostock 18059Germany

Zeolite-encapsulated metal nanoclusters are at the heart of bifunctional catalysts,which hold great potential for petrochemical conversion and the emerging sustainable biorefineries.Nevertheless,efficient encapsulation of metal nanoclusters into a high-silica zeolite Y in particular with good structural integrity still remains a significant challenge.Herein,we have constructed Ru nanoclusters(~1 nm)encapsulated inside a high-silica zeolite Y(SY)with a SiO_(2)/Al_(2)O_(3) ratio(SAR)of 10 via a cooperative strategy for direct zeolite synthesis and a consecutive impregnation for metal encapsulation.Compared with the benchmark Ru/H-USY and other analogues,the as-prepared Ru/H-SY markedly boosts the yields of pentanoic biofuels and stability in the direct hydrodeoxygenation of biomass-derived levulinate even at a mild temperature of 180℃,which are attributed to the notable stabilization of transition states by the enhanced acid accessibility and properly sized constraints of zeolite cavities owing to the good structural integrity.

关键词： High-silica zeolite Y Metal encapsulation Bifunctional catalysis Hydrodeoxygenation Biofuels

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频道化讲述:神话在电视媒介中的再语境化

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西北民族研究 2024年第2期 94-105页

作者：贾志杰北京市社会科学院文化研究所北京100101

神话的电子媒介讲述已成为当今社会的普遍现象,其中电视是神话展演最丰富的媒介之一。然而学界对此类现象的阐释显得力度不够,原因之一是长期以来神话学界一直存在着重内容而轻媒介的研究取向,对媒介本体与神话讲述的关系认识不足。在... 详细信息

神话的电子媒介讲述已成为当今社会的普遍现象,其中电视是神话展演最丰富的媒介之一。然而学界对此类现象的阐释显得力度不够,原因之一是长期以来神话学界一直存在着重内容而轻媒介的研究取向,对媒介本体与神话讲述的关系认识不足。在媒介能动性的视角下,电子媒介并不是惰性的、静态的,而是可以形塑神话讲述活动的重要因子。就电视媒介而言,频道化讲述是重要的节目播出机制,它在一定程度上形塑了神话的讲述方式和呈现形态。中央广播电视总台少儿频道神话创演节目《少年的奇幻世界》提供了一个典型案例,其所展演的神话在内容、形式、功能等方面都受到电视台和频道立场的规约,在频道化讲述的机制中被再语境化,鲜明展现了媒介对神话讲述的形塑力。

关键词：神话电视媒介的能动性频道化讲述《少年的奇幻世界》

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Formation Mechanism of Ground Fissures Originated from the Hanging Wall of Normal Fault:A Case in Fen-Wei Basin,China

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Journal of Earth Science 2022年第2期33卷 482-492页

作者： zhijie jia jianbing Peng Quanzhong Lu jianwei Qiao Feiyong Wang Mingdong Zang Yang Liu Junyan Zhao Fengji Zhu School of Geological Engineering and Geomatics Chang an UniversityXi'an 710054China Key Laboratory of Western Mineral Resources and Geological Engineering Ministry of Education Chang'an UniversityXfan 710064China China JK Institute of Engineering and Design Xfan 710043China Shaanxi Key Laboratory for the Property and Treatment of Special Soil and Rock Xfan 710043China School of Engineering and Technology China University of GeosciencesBeijing 100083China

This paper takes Fen-Wei Basin(FWB)as a case to study the ground fissures controlled by normal fault.Based on the field investigation,geophysical exploration,drilling,GNSS data and numerical calculation,the characteristics and mechanism of ground fissures originated from the hanging wall of normal faults are revealed.The results show that the distribution of ground fissures in the hanging wall and heading wall of the active faults is not uniform.Ground fissures are mostly distributed in the hanging wall of active faults and show a linear distribution on the surface,their strike is consistent with the fault,mainly characterized by vertical offset and horizontal tension.Ground fissures destroy the farmland and building foundation through which they pass and cause the rupture or displacement.In profile section,the ground fissure shows the characteristics of normal faults and dislocates the strata,and is connected with the underlying faults.Numerical analysis shows that the vertical displacement of normal fault activity in hanging wall is much larger than that in heading wall,which is the reason that tectonic ground fissures mainly originate from hanging wall.The range of dangerous area of ground fissures is controlled by the depth of fault,the strength of the ground fissures disaster is mainly controlled by the activity of fault.The formation of the ground fissures originated from the hanging wall of the fault experienced three stages:the main fault activity stage,the secondary fault activity stage and the fissure formation stage.

关键词： ground fissure Fen-Wei Basin active fault dislocation theory formation mechanism hazards engineering geology

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A Comprehensive Method for the Risk Assessment of Ground Fissures:Case Study of the Eastern Weihe Basin

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Journal of Earth Science 2023年第6期34卷 1892-1907页

作者： zhijie jia jianbing Peng Quanzhong Lu Penghui Ma jianwei Qiao Feiyong Wang Mingdong Zang Yang Liu Junyan Zhao Fengji Zhu School of Geological Engineering and Geomatics Chang'an UniversityXi'an 710054China Key Laboratory of Western Mineral Resources and Geological Engineering Ministry of Education Chang'an UniversityXi'an 710064China China JK Institute of Engineering and Design Xian 710043China School of Engineering and Technology China University of GeosciencesBeijing 100083China

Ground fissures are influenced by the coupling of geological factors and human activi-ties.They threaten the safety of infrastructure and restrict town planning in many areas in China.One of the area most severely affected by ground fissures is the Weihe Basin in North China,which has the most extensive distribution of ground fissures and all the elements that control their occurrence,pro-viding an ideal study area for the study of ground fissures.In this study,we took the eastern Weihe Ba-sin as the study area and determined the distribution and hazard characteristics of ground fissures via field investigation.Based on the analytic hierarchy process,we propose a multi-level,comprehensive method for evaluating the hazards of ground fissures.This method considers the geological back-ground,development status,and triggering factors of ground fissures,including all nine currently known assessment indices of ground fissures.We used judgment matrices to rank the constructed ground fissure assessment index system at the single and total levels and quantified the nine assessment indices of ground fissures according to the field survey data.Finally,we plotted the ground fissure risk zoning map and evaluated the ground fissure risk at the study area.Our findings indicated that the proposed method could facilitate ground fissure hazard assessment and prediction and provide support for hazard prevention and urban/rural planning.

关键词： ground fissure analytic hierarchy process hazards risk assessment hazard prevention

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A Comprehensive Method for the Risk Assessment of Ground Fissures: A Case Study of the Eastern Weihe Basin

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Journal of Earth Science 2023年

作者： zhijie jia jianbing Peng Quanzhong Lu Penghui Ma jianwei Qiao Feiyong Wang Mingdong Zang Yang Liu Junyan Zhao Fengji Zhu Key Laboratory of Western Mineral Resources and Geological Engineering Ministry of Education Chang'an University School of Engineering and Technology China University of Geosciences China JK Institute of Engineering and Design School of Geological Engineering and Geomatics Chang'an University

Ground fissures are influenced by the coupling of geological factors and human activities. They threaten the safety of infrastructure and restrict town planning in many areas in China. One of the area most severely affected by ground fissures is the Weihe Basin in North China, which has the most extensive distribution of ground fissures and all the elements that control their occurrence, providing an ideal study area for the study of ground fissures. In this study, we took the eastern Weihe Basin as the study area and determined the distribution and hazard characteristics of ground fissures via field investigation. Based on the analytic hierarchy process, we propose a multi-level, comprehensive method for evaluating the hazards of ground fissures. This method considers the geological background, development status, and triggering factors of ground fissures, including all nine currently known assessment indices of ground fissures. We used judgment matrices to rank the constructed ground fissure assessment index system at the single and total levels and quantified the nine assessment indices of ground fissures according to the field survey data. Finally, we plotted the ground fissure risk zoning map and evaluated the ground fissure risk at the study area. Our findings indicated that the proposed method could facilitate ground fissure hazard assessment and prediction and provide support for hazard prevention and urban/rural planning.

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基于深度置信网络的电力系统故障诊断方法

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电工技术 2024年第7期 61-63页

作者：贾志杰山西省高速公路集团太原有限责任公司山西太原030000

当前电力系统故障诊断节点多为目标式设定结构,诊断效率较低,导致故障诊断的F 1接近0,故基于深度置信网络设计一种电力系统故障诊断方法并对其进行验证分析。根据当前的测试需求,采用多层级的方式,提升整体的诊断效率,部署多层级故障数... 详细信息

当前电力系统故障诊断节点多为目标式设定结构,诊断效率较低,导致故障诊断的F 1接近0,故基于深度置信网络设计一种电力系统故障诊断方法并对其进行验证分析。根据当前的测试需求,采用多层级的方式,提升整体的诊断效率,部署多层级故障数据采集节点。以此为基础,进行故障特征提取,构建深度置信网络电力系统故障诊断模型,采用交叉核验评定的方式来实现故障诊断处理。测试结果表明,通过4个周期的阶段性测定与比对,最终该电力系统故障诊断的F 1值为1,为最佳的诊断结果,说明在深度置信网络的辅助和支持下,设计的诊断方法更为精准、高效,具有实际的应用价值。

关键词：深度置信网络电力系统故障诊断协同识别

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智能制造背景下跨专业教赛融合教学模式的构建与实施

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黑龙江教育（理论与实践） 2024年第2期 44-47页

作者：解志杰贾娜刘诚东北林业大学机电工程学院黑龙江哈尔滨150040

在高等工程教育改革中,跨专业培养和学科交叉融合是重要的改革方向之一。文章在分析工业4.0背景下工程人才需求现状的基础上,探讨了跨专业教育和学科竞赛融合教学模式的积极意义,并针对工程教育认证的要求,提出了构建该教学模式的底层... 详细信息

在高等工程教育改革中,跨专业培养和学科交叉融合是重要的改革方向之一。文章在分析工业4.0背景下工程人才需求现状的基础上,探讨了跨专业教育和学科竞赛融合教学模式的积极意义,并针对工程教育认证的要求,提出了构建该教学模式的底层逻辑和顶层设计思路。此外,文章还构建了相应的学习活动设计模型并提出了实施建议,同时通过实例分析证明了该教学模式的有效性和可行性。

关键词：跨专业教育学科竞赛合作学习融合教学

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基于新合作模式的逆向物流演化博弈分析

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科技和产业 2024年第7期24卷 57-63页

作者：栗治杰贾东水河北工程大学管理工程与商学院河北邯郸056004

为推进新时代的中国绿色发展、发挥逆向物流业的优势、实现物流包装循环利用、减少浪费,提出一种基于零售商和物流企业共同经营下一店两用的新合作模式,分析消费者的参与对包装逆物流合作的影响,并使用MATLAB进行数值仿真分析。研究表明... 详细信息

为推进新时代的中国绿色发展、发挥逆向物流业的优势、实现物流包装循环利用、减少浪费,提出一种基于零售商和物流企业共同经营下一店两用的新合作模式,分析消费者的参与对包装逆物流合作的影响,并使用MATLAB进行数值仿真分析。研究表明:零售商和物流企业的合作成本、未合作时的利润损失以及消费者的参与都会对双方最终选择的策略造成影响;当消费者主动参与时系统以更快的速度收敛到合作的结果,消费者在其中起到积极的推动作用。

关键词：逆向物流演化博弈消费者参与企业合作

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模拟换流阀长期运行工况的高压大功率晶闸管电热联合老化系统研制

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电工电能新技术 2024年第2期43卷 20-28页

作者：刘隆晨张康喻悦箫庞磊贾志杰国网四川省电力公司电力科学研究院四川成都610000 西安交通大学电气工程学院陕西西安710049

近年来国内多个直流换流站发生严重事故,经调查发现事故起因多为长时间运行的换流阀晶闸管发生不同程度的老化甚至绝缘能力丧失。掌握晶闸管参数退化规律是开展晶闸管运维监测、预防此类事故继续发生的基础。因此为了深入了解换流阀晶... 详细信息

近年来国内多个直流换流站发生严重事故,经调查发现事故起因多为长时间运行的换流阀晶闸管发生不同程度的老化甚至绝缘能力丧失。掌握晶闸管参数退化规律是开展晶闸管运维监测、预防此类事故继续发生的基础。因此为了深入了解换流阀晶闸管老化过程中特性参数退化规律与老化机理,首先需要搭建试验所需的模拟换流阀运行过程的晶闸管老化试验装置。文中首先分析了换流阀晶闸管的实际运行工况,并基于此设计了晶闸管电热联合老化主电路,接着对电路中涉及到的控制单元,包括绝缘栅双极型晶体管(IGBT)的驱动电路与晶闸管的触发电路进行设计与搭建,并基于晶闸管的实际运行工况设计了晶闸管结温控制系统。为了获得晶闸管老化过程中特性参数的退化规律,设计了晶闸管漏电流在线监测系统与反向恢复离线测量系统。经过检验,各个模块以及主电路均能够保持长期稳定运行,为换流阀晶闸管的老化试验打下了良好基础。

关键词：换流阀晶闸管老化试验装置驱动电路结温控制特性参数

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Alternatively mechanistic insights into acetylation in p53-mediated transcriptional regulation of cancer cell-intrinsic PD-1

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Fundamental Research 2023年第4期3卷 647-654页

作者： jia Wen Han Yao zhijie Cao Donglai Wang State Key Laboratory of Medical Molecular Biology&Department of Medical Genetics Institute of Basic Medical Sciences&School of Basic MedicineChinese Academy of Medical Sciences&Peking Union Medical CollegeBeijing 100005China

Since the recent discovery of cancer cell-intrinsic programmed cell death protein-1(PD-1),the mechanisms that manipulate PD-1 functions in tumor development beyond its immune checkpoint roles have become attractive research topics in oncology.Our previous study validated that PD-1 exists in lung cancer cells and is directly transactivated by p53 in a DNA-binding domain(DBD)acetylation-dependent manner.Here,we report that the carboxyl-terminal domain(CTD)of p53 likewise participates in PD-1 transcriptional regulation in cancer cells under different regulatory mechanisms.By mutating the lysine residues within the CTD to mimic either acetylationdeficient or fully acetylated status,we proved that acetylated CTD dramatically impeded p53-mediated transactivation of PD-1.Furthermore,we identified bromodomain-containing protein 4(BRD4)as a transcriptional coactivator of p53 that facilitates p53-mediated PD-1 transcription.Mechanistically,BRD4 specifically bound to the unacetylated CTD of p53,while CTD acetylation almost completely destroyed the BRD4-p53 interaction and thus led to compromised PD-1 expression.Collectively,this study unveils an alternative mechanism of p53 acetylation-directed PD-1 transcriptional regulation,which would broaden our current understanding of the molecular regulatory network of cancer cell-intrinsic PD-1.

关键词： p53 Acetylation PD-1 BRD4 Carboxyl-terminal Domain(CTD)

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