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Rational Manipulation of Intermediates on Copper for CO_(2)Electroreduction Toward Multicarbon Products

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Transactions of Tianjin University 2022年第4期28卷 265-291页

作者： Guangyi Jiang Daliang Han Zishan Han Jiachen Gao Xinyu Wang zhe weng Quan-Hong Yang Nanoyang Group State Key Laboratory of Chemical EngineeringSchool of Chemical Engineering and TechnologyTianjin UniversityTianjin 300072China Haihe Laboratory of Sustainable Chemical Transformations Tianjin 300192China Collaborative Innovation Center of Chemical Science and Engineering(Tianjin) Tianjin 300072China Joint School of National University of Singapore and Tianjin University International Campus of Tianjin UniversityBinhai New CityFuzhou 350207China

Excess greenhouse gas emissions,primarily carbon dioxide(CO_(2)),have caused major environmental concerns *** electroreduction of CO_(2)into valuable chemicals using renewable energy is an ecofriendly approach to achieve carbon *** this regard,copper(Cu)has attracted considerable attention as the only known metallic catalyst available for converting CO_(2)to high-value multicarbon(C_(2+))*** production of C_(2+)involves complicated C-C coupling steps and thus imposes high demands on intermediate *** this review,we discuss multiple strategies for modulating intermediates to facilitate C_(2+)formation on Cu-based ***,several sophisticated in situ characterization techniques are outlined for elucidating the mechanism of C-C ***,the challenges and future directions of CO_(2)electroreduction to C_(2+)are envisioned.

关键词： CO_(2)electroreduction Copper-based electrocatalysts Multicarbon products Intermediate C-C coupling

Comparison of postoperative complications between internal and external pancreatic duct stenting during pancreaticoduodenectomy: a meta-analysis

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Chinese Journal of Cancer Research 2015年第4期27卷 397-407页

作者： Fa-Yong Ke Xiang-Song Wu Yong Zhang Hong-Cheng Zhang Ming-zhe weng Ying-Bin Liu Christopher Wolfgang Wei Gong Department of General Surgery Xinhua Hospital Shanghai Jiao Tong University School of Medicine Department of Hepatobiliary and Pancreatic Surgery Johns Hopkins School of Medicine

Background：Two types of pancreatic duct stents are used to improve postoperative outcomes of pancreatic *** aim of this meta-analysis was to evaluate and compare the postoperative outcomes of patients with internal or external stenting during pancreaticoduodenectomy（PD）.Methods：We searched Pub Med,EMBASE,the Cochrane Library and Web of Science databases until the end of December,*** comparing outcomes of external *** stent placement in PD were eligible for *** literature was extracted and assessed by two independent ***：Seven articles were identified for inclusion：three randomized controlled trials（RCTs）and four observational clinical studies（OCS）.The meta-analyses revealed that use of external stents had advantage on reducing the incidences of pancreatic fistula（PF）in total[odds ratio（OR）=0.69;95%confidence interval（CI）,0.48-0.99;P=0.04],PF in soft pancreas（OR=0.30;95%CI,0.16-0.56;P=0.0002）and delayed gastric emptying（DGE）（OR=0.58;95%CI,0.38-0.89;P=0.01）compared with internal *** were no significant differences in other postoperative outcomes between two stenting methods,including postoperative morbidity（OR=0.93;95%CI,0.39-2.23;P=0.88）,overall mortality（OR=0.70;95%CI,0.22-2.25;P=0.55）,and intra-abdominal collections（OR=0.67;95%CI,0.26-1.71;P=0.40）.Conclusions：Based upon this meta-analysis,the use of external pancreatic stents might have potential benefit in reducing the incidence of PF and *** to the limited number of original studies,more RCTs are needed to further support our result and clarify the issue.

关键词： Pancreatic duct stent pancreaticoduodenectomy(PD) meta-analysis

Electrosynthesis of Hydrocarbons from CO2 on Cu-based Catalysts

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Electrosynthesis of Hydrocarbons from CO2 on Cu-based Cataly...

Cu-based Electrocatalysts for Reduction of CO2 to Hydrocarbons

2019第四届中国能源材料化学研讨会

作者： zhe weng Hailiang Wang Nanoyang Group State Key Laboratory of Chemical EngineeringSchool of Chemical Engineering and TechnologyTianjin University Collaborative Innovation Center of Chemical Science and Engineering (Tianjin) Energy Sciences Institute Department of ChemistryYale University

The rise in CO emissions caused by burning fossil fuels poses considerable risks to the environment and climate as well as all living creatures on the *** conversion of CO using electricity generated from renewable energy sources could provide viable solutions to the development of carbon-neutral ***,CO electroreduction is a kinetically slow and diverging reaction that requires a significant magnitude of overpotential and generates a myriad of *** electrocatalysts including solid-state materials and molecular complexes have been extensively investigated for CO reduction *** all the materials studied,Cu metal has received substantial attention due to its distinct ability to generate reasonable amounts of hydrocarbon products,which requires addition of multiple electrons and protons to a CO molecule and C-C bond *** the past several decades,a number of strategies have been developed to increase the performance of Cu based catalysts,including shape control,alloying,surface modification and oxidative ***,the low catalytic durability,selectivity and activity remain as three major problems that have not been *** this presentation,I will show some of our original ideas and related progresses in solution to those troubles: 1) utilization of foreign metal atoms to induce surface restructuring for realizing self-cleaning metallic Cu catalysts against deactivation;2) coordination of Cu atoms with molecular ligands to form heterogeneous molecular Cu catalysts for increasing the slectivity and activity towards *** in-situ and operando X-ray absorption spectroscopy measurements,we found a reversible restructuring phenomenon for molecular Cu catalysts,and elucidated their real active sites.

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Cu-based Electrocatalysts for Reduction of CO2 to Hydrocarbo...

ZBTB20 is involved in liver regeneration after partial hepatectomy in mouse

中国化学会2019能源材料和缺陷化学研讨会

作者： zhe weng Hailiang Wang Nanoyang Group State Key Laboratory of Chemical Engineering School of Chemical Engineering and Technology Tianjin University Collaborative Innovation Center of Chemical Science and Engineering(Tianjin) Energy Sciences Institute Department of Chemistry Yale University

The rise in CO emissions caused by burning fossil fuels poses considerable risks to the environment and climate as well as all living creatures on the earth. Electrochemical conversion of CO using electricity generated from renewable energy sources could provide viable solutions to the development of carbon-neutral fuels. However, CO electroreduction is a kinetically slow and diverging reaction that requires a significant magnitude of overpotential and generates a myriad of products. Many electrocatalysts including solid-state materials and molecular complexes have been extensively investigated for CO reduction reactions. Among all the materials studied, Cu metal has received substantial attention due to its distinct ability to generate reasonable amounts of hydrocarbon products, which requires addition of multiple electrons and protons to a CO molecule and C-C bond formation. In the past several decades, a number of strategies have been developed to increase the performance of Cu based catalysts, including shape control, alloying, surface modification and oxidative treatment. However, the low catalytic durability, selectivity and activity remain as three major problems that have not been solved. In this presentation, I will show some of our original ideas and related progresses in solution to those troubles: 1) utilization of foreign metal atoms to induce surface restructuring for realizing self-cleaning metallic Cu catalysts against deactivation;2) coordination of Cu atoms with molecular ligands to form heterogeneous molecular Cu catalysts for increasing the selectivity and activity towards hydrocarbons. Employing in-situ and operando X-ray absorption spectroscopy measurements, we found a reversible restructuring phenomenon for molecular Cu catalysts, and elucidated their real active sites.

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Hepatobiliary & Pancreatic Diseases International 2014年第1期13卷 48-54页

作者： Ming-zhe weng Peng-Yuan Zhuang zhen-Yu Hei Pei-Yi Lin Zhi-Sheng Chen Ying-Bin Liu Zhi-Wei Quan Zhao-Hui Tang Department of General Surgery Xinhua Hospital Shanghai Jiaotong University School of Medicine

BACKGROUND: A better understanding of the molecular mechanisms in liver regeneration holds promise for exploring the new potential therapy for liver failure. The present study was to investigate the role of zinc finger and BTB domain-containing protein 20(ZBTB20), a potential factor associated with liver regeneration, in a model of 70% hepatectomy in mice. METHODS: Parameters for liver proliferation such as liver/body ratio and BrdU positivity were obtained via direct measurement and immunohistochemistry. The levels of zinc fingers and homeoboxes 2(ZHX2), ZBTB20, alpha-fetoprotein(AFP) and glypican 3(GPC3) transcripts in the regenerating liver tissue of a 70% hepatectomy rodent model were monitored by real-time PCR analysis at different time points. Knockdown of ZBTB20 was performed to characterize its regulatory function. RESULTS: A negatively regulating relationship between ZHX2, ZBTB20 and AFP, GPC3 was revealed from 24 to 72 hours after 70% hepatectomy. ZBTB20 appears to negatively regulate AFP and GPC3 transcription since the knockdown of ZBTB20 promoted the proliferation of hepatocytes and the expression of AFP and GPC3. CONCLUSION: In addition to AFP, GPC3 and ZHX2, ZBTB20 is a new regulator in liver regeneration and the decrease of ZBTB20 expression following 70% hepatectomy promotes AFP and GPC3 expression.

关键词： partial hepatectomy liver regeneration ZBTB20 mouse

Decision making module based on stochastic magnetic tunnel junctions

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Science China(Physics,Mechanics & Astronomy) 2025年第1期Mechanics & Astronomy) .卷 202-209页

作者： Yifan Miao Li Zhao Yajun Zhang zhe Yuan Center for Advanced Quantum Studies and Department of Physics Beijing Normal University Institute for Nanoelectric Devices and Quantum Computing Fudan University Interdisciplinary Center for Theoretical Physics and Information Sciences Fudan University

In biological neural systems, noise is ubiquitous but does not affect the correct decisions made in the complex cognitive ***-making in biological neural system is typically achieved by accumulating input information over a period of *** by recent developments in neurosciences, we design a decision-making module based on spintronic devices, utilizing superparamagnetic tunnel junctions as artificial neurons. The feasibility of this decision-making module is verified through circuit simulations. Taking a multi-layer perceptron as an example, the module significantly improves the accuracy of the perceptron in the handwritten digit recognition task. Furthermore, the spintronic decision-making module offers advantages over the conventional pooling methods, such as adaptive decision time, high performance and the absence of analog-to-digital conversion. The decision-making module is flexible to be integrated into artificial neural networks and provides a general yet effective solution to enhance performance against device noise.

关键词： neuromorphic computing spintronics magnetic tunnel junction neural networks

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“双减”格局下教培行业前景探析

中国商论 2022年第8期 117-119页

作者：翁哲中国计量大学马克思主义学院浙江杭州318000

“双减”政策的出台,给教培行业的激烈竞争按下了暂停键,资本市场看空、企业寻求出路、机构教师转行,传统以K12教育为主流业务的教育机构亟待转型,整个行业面临大洗牌。本文首先从“双减”前,整个行业市场规模扩大、教学技术变革、行业... 详细信息

“双减”政策的出台,给教培行业的激烈竞争按下了暂停键,资本市场看空、企业寻求出路、机构教师转行,传统以K12教育为主流业务的教育机构亟待转型,整个行业面临大洗牌。本文首先从“双减”前,整个行业市场规模扩大、教学技术变革、行业门槛提高的简况出发,与政策落地后的相应状况进行比对分析,从市场赛道切换、机构重心调整、个人职业转型三个层面,为“双减”格局下的教培行业的发展提供具有可行性的参考建议。

关键词： “双减”格局教育改革教育治理教培行业前景探析

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STC单片机程序下载器设计

西安文理学院学报（自然科学版） 2010年第3期13卷 47-50页

作者：翁哲武警工程学院通信工程系陕西西安710086

STC单片机具有功能强、保密性强、价格低、编程简便等突出特点,其程序可以使用串行在线编程(ISP)方式下载写入,所需的装置就是程序下载器.介绍的STC单片机程序下载器是利用PL2303组成串口转换器,将USB串口虚拟成RS232串口,解决了STC单... 详细信息

STC单片机具有功能强、保密性强、价格低、编程简便等突出特点,其程序可以使用串行在线编程(ISP)方式下载写入,所需的装置就是程序下载器.介绍的STC单片机程序下载器是利用PL2303组成串口转换器,将USB串口虚拟成RS232串口,解决了STC单片机与PC机的通信问题.

关键词： STC单片机 USB-UART转换电路程序下载器

基于CC2420的ZigBee犯人劳作安全管理系统

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西安文理学院学报（自然科学版） 2009年第3期12卷 42-45页

作者：翁哲武警工程学院通信工程系陕西西安710086

Z igBee技术是近年来通信领域中的研究热点,具有低成本、低功耗、低速率、低复杂度的特点和高可靠性、组网简单、灵活的优势,被称为无线传感器网络的国际标准.鉴于犯人外出劳作或在监区内活动无法有效监控的情况,主要介绍了一种基于Z ig... 详细信息

Z igBee技术是近年来通信领域中的研究热点,具有低成本、低功耗、低速率、低复杂度的特点和高可靠性、组网简单、灵活的优势,被称为无线传感器网络的国际标准.鉴于犯人外出劳作或在监区内活动无法有效监控的情况,主要介绍了一种基于Z igbee技术的射频收发芯片CC2420和以PIC18系列单片机为控制核心的犯人劳作无线安全管理系统,对其工作原理进行了分析,给出了设计思路和软硬件流程设计.该系统将可大大提高对犯人的管控.

关键词：射频无线通信 CC2420 PIC18