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Unraveling the interfacial effect of PdBi bimetallic catalysts on promoting CO_(2)electroreduction to formate

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Nano Research 2023年第8期16卷 10822-10831页

作者： wenhui Liu Lingtong Ding Minmin Liu Xiao Wang Zhengrong Zhang tian-wen jiang Shengjuan Huo wen-Bin Cai International Joint Laboratory of Catalytic Chemistry Department of ChemistryInstitute for Sustainable EnergyCollege of SciencesShanghai UniversityShanghai 200444China Shenzhen Key Laboratory of Nanobiomechanics Shenzhen Institute of Advanced TechnologyChinese Academy of SciencesShenzhen 518055China Paul C.Lauterbur Research Center for Biomedical Imaging Shenzhen Institute of Advanced TechnologyChinese Academy of SciencesShenzhen 518055China Shanghai Key Laboratory of Molecular Catalysis and Innovative Materials Collaborative Innovation Center of Chemistry for Energy MaterialsDepartment of ChemistryFudan UniversityShanghai 200438China

Through interface engineering and content control strategy,a PdBi bimetallic interface structure was constructed for the first time to selectively convert CO_(2)to formate with a remarkably high Faraday efficiency(FEformate)of 94%and a partial current density(jformate)of 34 mA·cm^(−2)at−0.8 V *** hydrogen electrode(RHE)in an ***,the PdBi interface electrocatalyst even exhibited a high current density of 180 mA·cm^(−2)with formate selectivity up to 92%in a flow cell and could steadily operate for at least 20 *** in-situ attenuated total reflection surface enhanced infrared absorption spectroscopy(ATR-SEIRAS)confirmed that the PdBi interface could greatly weaken the adsorption of*CO intermediates due to electronic and geometric *** functional theory(DFT)calculations also established that the PdBi interface regulated the CO_(2)-to-formate pathway by reducing the energy barrier toward HCOOH and largely weakening the adsorption of*CO intermediates on the catalyst *** study reveals that the unique PdBi bimetallic interface can provide a novel platform to study the reaction mechanism through combining in-situ ATR-SEIRAS and DFT calculations.

关键词： carbon dioxide reduction reaction bimetallic PdBi interface engineering formate in-situ attenuated total reflection surface enhanced infrared absorption spectroscopy(ATR-SEIRAS)

Aspirin increases susceptibility of Helicobacter pylori to metronidazole by augmenting endocellular concentrations of antimicrobials

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World Journal of Gastroenterology 2009年第8期15卷 919-926页

作者： Xiao-Ping Zhang Wei-Hong Wang Yu tian wen Gao jiang Li Department of Gastroenterology Peking University First Hospital Beijing 100034 China

AIM： To investigate the increasing the susceptibility pylon） to metronidazole. mechanisms of aspirin of Helicobacter pylori （H METHODS： Hpylori reference strain 26695 and two metronidazole-resistant isolates of H pylori were included in this study. Strains were incubated in Brucella broth with or without aspirin （1 mmol/L）. The rdxA gene of Hpylori was amplified by PCR and sequenced. The permeability of Hpylori to antimicrobials was determined by analyzing the endocellular radioactivity of the cells after incubated with [7-^3H]-tetracycline. The outer membrane proteins （OMPs） of Hpylori 26695 were depurated and analyzed by SDS-PAGE. The expression of 5 porins （hopA, hopB, hopC, hopD and hopE） and the putative RND efflux system （hefABC） of H pylori were analyzed using real-time quantitative PCR. RESULTS： The mutations in rdxA gene did not change in metronidazole resistant isolates treated with aspirin. The radioactivity of H pylori increased when treated with aspirin, indicating that aspirin improved the permeability of the outer membrane of H pylori. However, the expression of two OMP bands between 55 kDa and 72 kDa altered in the presence of *** expression of the mRNA of hopA, hopB, hopC, hopD, hopE and herA, hefB, hefC of H pylori did not change when treated with aspirin. CONCLUSION： Although aspirin increases the susceptibility of H pylori to metronidazole, it has no effect on the mutations of rdxA gene of Hpylori. Aspirin increases endocellular concentrations of antimicrobials probably by altering the OMP expression.

关键词： Helicobacter pylori Aspirin Metronidazole Resistance Minimum inhibitory concentrations

Experimental investigation of tubing collar's influence on hydrodynamic behavior of annular duct flow

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Petroleum Science 2022年第5期19卷 2326-2342页

作者： Yi-Su Zhou Zhong-Wei Huang Zhuang-Zhuang Zhang tian-wen jiang Rui-Yue Yang Ming-He Zhang State Key Laboratory of Petroleum Resources and Prospecting China University of Petroleum ChangpingBeijing 102249China China University of Petroleum(Beijing) ChangpingBeijing 102249China

Tubing collars’influence on hydrodynamic behavior of annular duct flow has been investigated using Particle Image Velocity(PIV)*** has become an efficient method for complex transient flows visualization.A water flow loop with two replaceable variable cross-sections(VCS),75-90 mm and 90-110 mm,in a 129 mm inner diameter(ID)pipe was *** whole field of the variable cross-section annulus(VCSA)was visualized,including forward-facing step(FFS),narrow annulus(NA),and backwardfacing step(BFS)*** VCSA ratio and Reynolds(Re)number influence on streamline distribution,velocity distribution,and turbulence intensity were *** showed that the recirculation is easier to form in BFS than FFS flow under the same *** VCSA ratio affects the formation of recirculation zones and the location of the reattachment *** number mainly affects BFS flow by influencing the main velocity component-axial *** turbulence intensity is relatively high in BFS than FFS flow and is larger at y/h>1.0 than y/h<***,the streamwise cohere nt structures reveal that the first two modes are predominant and represent the main characteristics of the flow by proper orthogonal decomposition(POD)method.

关键词： Variable cross-section annulus flow Sudden contraction and expansion Hydrodynamic behavior PIV POD

The effects of myocardial ischemia for different duration on reperfusion - induced arrhythmia and cardiac performance in rat hearts in vivo

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The effects of myocardial ischemia for different duration on...

城市轨道交通高架桥墩帽预制装配施工关键技术及应用研究

中华医学会心血管病学分会第八次全国心血管病学术会议

作者： Shi Liye tian wen jiang Darning Gao Mingyu Wang Zuojun Oi Guoxian 中国医科大学附属第一医院心内科

Objective To investigate the effects of different duration of myocardialischemia on reperfusion -induced arrhythmias and cardiac performance、 MDA 、 SOD 、 morphological in rat hearts in vivo. Method Adult Wistar rats were randomly dividedinto six groups. The left anterior coronary descending branch was ligated in 0,5, 10,15,30min and 1 hour respectively following 45min of reperfusion. The ECG were recorded incessantly. LVSP and ± LVdp/dtmax of pre-ischemia、post-ischemia and 45min reperfusion were recorded. Myocardial tissue of infarc-ted zone was scissor tomeasure malondialdehyde ( MDA ) content and superoxidedismutase ( SOD ) content. The reperfused myocardial morphology were observed. Result The occurrence rate of reperfusion arrhythmias was 100% after 10min ischemia and 45min reperfusion, the occurrence rate was declined whether the ischemia duration shorter or longer, none of reperfusion arrhythmia occur after 1 hour occlusion of coronary artery in rat. LVSP, ± LVdp/dtmax 、 SOD were decreased along with the ischemic duration prolonged, on the contrary MDA was increased. Microscopy revealed stunned - myocardial tissuestructure was normal after 5 - 15min ischemia following 45min reperfusion, 30min myocardial ischemia induced slice or stove range of necrosis of cell, farthermore,1h myocardial ischemia induced obviously necrosis. Conclusion The degree of reperfusion arrhythmias will be more severity alonged with the prolonging of ischemia duration in a limit time, after a peak time it is abated and over a limited time reperfusion arrhythmias do not occur. Free oxygen radicals are not the most important to reperfusion arrhythmi-a. Cardiac performance, free oxygen radicals are decreased along with the myocardial ischemic duration. Early reperfusion can attenuate the degree of myocardial stuning.

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工程建设与设计 2018年第23期 189-193页

作者：田文将中铁三局集团有限公司北京国际工程分公司北京100073

在我国的城市轨道交通建设中,高架桥下部结构施工形式多以现浇方式为主,而对于墩帽的快速施工——墩帽的预制装配施工却鲜有应用。论文对城市轨道交通高架桥施工对城市交通的影响进行了分析;从安全和经济等优势上对城市轨道交通高架桥... 详细信息

在我国的城市轨道交通建设中,高架桥下部结构施工形式多以现浇方式为主,而对于墩帽的快速施工——墩帽的预制装配施工却鲜有应用。论文对城市轨道交通高架桥施工对城市交通的影响进行了分析;从安全和经济等优势上对城市轨道交通高架桥快速施工的必要性进行了叙述;结合某工程实例,详细阐述了城市轨道交通高架桥墩帽预制施工技术及应用。

关键词：城市高架预制墩帽装配技术快速施工

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CFG桩加固软土地基在洛湛铁路中的应用

铁道运营技术 2006年第3期12卷 12-13,15页

作者：田文将中铁三局五公司洛湛项目部工程师广西梧州543003

CFG桩复合地基是一种新型的铁路地基处理技术。结合洛湛铁路梧州车站软基处理,对长螺旋钻孔管内泵压CFG桩的作用机理、施工工艺、施工方法及施工注意事项等方面进行了全面阐述。

关键词：长螺旋钻孔管内泵压CFG桩梧州车站软基加固机理施工工艺注意事项

Left ventricular remodeling and the outcome of ischemic mitral regurgitation after off-pump coronary artery bypass grafting:a real time three-dimensional echocardiography study

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Left ventricular remodeling and the outcome of ischemic mitr...

Activin A receptor type 1C single nucleotide polymorphisms associated with esophageal squamous cell carcinoma risk in Chinese population

第二届长三角超声医学论坛暨2009年浙江省超声医学学术年会

作者： Department of Echocardiography,Huashan Hospital,Fudan University,Shanghai 200040,China Guo-qian HUANG Xiao-tian SUN Yu-wen jiang Jie-chun HUANG Lie-wen PANG Yi-qing WANG

Background and Object Ischemic mitral regurgitation(IMR) is a common complication with coronary artery *** its prognostic importance,the most appropriate treatment for IMR remains controversial because of its complex ...

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World Journal of Gastrointestinal Oncology 2025年第1期17卷 39-51页

作者： Si-Yun Lin Hou Huang Jin-Jie Yu Feng Su tian jiang Shao-Yuan Zhang Lu Lv Tao Long Hui-wen Pan Jun-Qing Qi Qiang Zhou Wei-Feng Tang Guo-wen Ding Li-Ming Wang Li-Jie Tan Jun Yin Department of Thoracic Surgery Zhongshan Hospital Affiliated to Fudan UniversityShanghai 200032China Shanghai Key Laboratory of Clinical Geriatric Medicine Huadong Hospital Affiliated to Fudan UniversityShanghai 200040China Department of Cardiothoracic Surgery The Affiliated People's Hospital of Jiangsu UniversityZhenjiang 212002Jiangsu ProvinceChina Department of Thoracic Surgery Sichuan Cancer Hospital&InstituteChengdu 610042Sichuan ProvinceChina Department of Cardiothoracic Surgery Nanjing Drum Tower HospitalThe Affiliated Hospital of Nanjing University Medical SchoolNanjing 210000Jiangsu ProvinceChina Department of Respiratory and Critical Care Medicine Shanghai Xuhui Central HospitalShanghai 200032China

BACKGROUND Transforming growth factor-β(TGF-β)superfamily plays an important role in tumor progression and *** A receptor type 1C(ACVR1C)is a TGF-βtype I receptor that is involved in tumorigenesis through binding to dif-ferent *** To evaluate the correlation between single nucleotide polymorphisms(SNPs)of ACVR1C and susceptibility to esophageal squamous cell carcinoma(ESCC)in Chinese Han *** In this hospital-based cohort study,1043 ESCC patients and 1143 healthy controls were *** SNPs(rs4664229,rs4556933,rs77886248,rs77263459,rs6734630)of ACVR1C were assessed by the ligation detection reaction ***-Weinberg equilibrium test,genetic model analysis,stratified analysis,linkage disequi-librium test,and haplotype analysis were *** Participants carrying ACVR1C rs4556933 GA mutant had significantly decreased risk of ESCC,and those with rs77886248 TA mutant were related with higher risk,especially in older male *** the haplotype analysis,ACVR1C Trs4664229Ars4556933Trs77886248Crs77263459Ars6734630 increased risk of ESCC,while Trs4664229Grs4556933Trs77886248Crs77263459Ars6734630 was associated with lower susceptibility to *** ACVR1C rs4556933 and rs77886248 SNPs were associated with the susceptibility to ESCC,which could provide a potential target for early diagnosis and treatment of ESCC in Chinese Han population.

关键词： Activin A receptor type 1C Single nucleotide polymorphisms Esophageal squamous cell carcinoma Genetic susceptibility Hospital-based cohort study

Ultra‑High Sensitivity Anisotropic Piezoelectric Sensors for Structural Health Monitoring and Robotic Perception

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Nano-Micro Letters 2025年第2期17卷 432-446页

作者： Hao Yin Yanting Li Zhiying tian Qichao Li Chenhui jiang Enfu Liang Yiping Guo State Key Laboratory of Metal Matrix Composites School of Materials Science and EngineeringShanghai Jiao Tong UniversityShanghai 200240People’s Republic of China Beijing Vacuum Electronics Research Institute Beijing 100015People’s Republic of China Fundamental Science On Vibration Shock and Noise LaboratoryState Key Laboratory of Mechanical System and VibrationSchool of Mechanical EngineeringShanghai Jiao Tong UniversityShanghai 200240People’s Republic of China

Monitoring minuscule mechanical signals,both in magnitude and direction,is imperative in many application scenarios,e.g.,structural health monitoring and robotic sensing ***,the piezoelectric sensor struggles to satisfy the requirements for directional recognition due to the limited piezoelectric coefficient matrix,and achieving sensitivity for detecting micrometer-scale deformations is also ***,we develop a vector sensor composed of lead zirconate titanate-electronic grade glass fiber composite filaments with oriented arrangement,capable of detecting minute anisotropic *** as-prepared vector sensor can identify the deformation directions even when subjected to an unprecedented nominal strain of 0.06%,thereby enabling its utility in accurately discerning the 5μm-height wrinkles in thin films and in monitoring human pulse *** ultra-high sensitivity is attributed to the formation of porous ferroelectret and the efficient load transfer efficiency of continuous lead zirconate titanate ***,when integrated with machine learning techniques,the sensor’s capability to recognize multi-signals enables it to differentiate between 10 types of fine textures with 100%*** structural design in piezoelectric devices enables a more comprehensive perception of mechanical stimuli,offering a novel perspective for enhancing recognition accuracy.

关键词： Flexible piezoelectric filaments Anisotropic Ultra-high sensitivity Structural health detection Texture recognition