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Tailoring electron transfer with Ce integration in ultrathin Co(OH)_(2) nanosheets by fast microwave for oxygen evolution reaction

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Journal of Energy Chemistry 2021年第8期30卷 299-305,I0007页

作者： Ya-Nan zhou Ruo-Yao Fan Shu-yue Dou Bin Dong yu Ma Wen-Li yu Meng-Xuan Li yu-lu zhou Chen-Guang Liu Yong-Ming Chai State Key Laboratory of Heavy Oil Processing China University of Petroleum(East China)Qingdao 266580China College of Science China University of Petroleum(East China)Qingdao 266580China

The intrinsic activity of Co(OH)_(2) for oxygen evolution reaction(OER)may be elaborately improved through the suitable valence *** modification at electronic level is proved to be an efficient strategy owing to the flexible transformation of Ce^(3+)/Ce4+.Herein,Ce0.21@Co(OH)_(2) with the optimized Ce doping have been fabricated to tailor the fast electron transfer for the enhanced activity and stability for ***,the obtained core-shell structure composed of vertical loose Co(OH)_(2) sheets not only exposes a large number of active sites,but also provides channels for Ce ***,the high pressure microwave with instantaneous heating can fast introduce Ce into Co(OH)_(2),obtaining Cex@Co(OH)_(2) with well dispersion and close *** intimated interaction between Ce and Co species may provide the"d-f electronic ladders"for accelerating electron transfer of the catalytic ***,Ce promotes the formation of Co-superoxide intermediate and/or the release of oxygen,which is considered to be the rate-determining step for *** electrochemical measurements confirmed the low overpotential of 300 m V at 10 m A cm^(-2) and great stability of Ce0.21@Co(OH)_(2) for *** work demonstrates a meaningful approach to realize the tuned electronic structure through metal doping.

关键词： Ultrathin Co(OH)_(2) Ce doping Electron regulation High pressure microwave Oxygen evolution reaction

Mitochondrial network in the heart

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Protein & Cell 2012年第6期3卷 410-418页

作者： Qian Li lu-yu zhou Gui-Feng Gao Jian-Qin Jiao Pei-Feng Li Division of Cardiovascular research State Key Laboratory of Biomembrane and Membrane BiotechnologyInstitute of ZoologyChinese Academy of SciencesBeijing 100101China

Mitochondria are subcellular organelles that provide energy for the *** form a dynamic tubular network and play an important role in maintaining the cell function and *** is a powerful organ that supplies the motivation for circulation,thereby requiring large amounts of ***,the healthiness of cardiomyocytes and mitochondria is necessary for the normal cardiac *** not only lie in the center of the cell apoptotic pathway,but also are the major source of reactive oxygen species(ROS)*** morphological change includes fission and fusion that are regulated by a large number of *** this review we discuss the regulators of mitochondrial fission/fusion and their association with cell apoptosis,autophagy and ROS production in the heart.

关键词： mitochondrial network heart diseases reactive oxygen species

Prediction of damage potential in mainshock–aftershock sequences using machine learning algorithms

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Earthquake Engineering and Engineering Vibration 2024年第4期23卷 919-938页

作者： zhou zhou Wang Meng Han Miao yu Xiaohui lu Dagang School of Civil and Transportation Engineering Beijing University of Civil Engineering and ArchitectureBeijing 100044China Multi-Functional Shaking Tables Laboratory Beijing University of Civil Engineering and ArchitectureBeijing 100044China College of Civil Engineering Tongji UniversityShanghai 200092China College of Civil Engineering and Architecture Guilin University of TechnologyGuilin 541004China School of Civil Engineering Harbin Institute of TechnologyHarbin 150090China

Assessing the potential damage caused by earthquakes is crucial for a community’s emergency *** this study,four machine learning(ML)methods—random forest,extremely randomized trees,AdaBoost(AB),and gradient boosting(GB)—were employed to develop prediction models for the damage potential of the mainshock(DIMS)and mainshock–aftershock sequences(DIMA).Building structures were modeled using eight single-degree-of-freedom(SDOF)systems with different hysteretic rules.A set of 662 recorded mainshock–aftershock(MS-AS)ground motions was selected from the PEER *** intensity measures(IMs)were chosen to represent the characteristics of the mainshock and *** results revealed that the selected ML methods can well predict the structural damage potential of the SDOF systems,except for the AB *** GB model exhibited the best performance,making it the recommended choice for predicting DIMS and DIMA among the four ML ***,the impact of input variables in the prediction was investigated using the shapley additive explanations(SHAP)*** high-correlation variables were sensitive to the structural period(T).At T=1.0 s,the mainshock peak ground velocity(PGVM)and aftershock peak ground displacement(PGDA)significantly influenced the prediction of *** T increased to 5.0 s,the primary high-correlation factor of the mainshock IMs changed from PGVM to the mainshock peak ground displacement(PGDM);however,the highcorrelation variable of the aftershock IMs remained *** high-correlation factors for DIMS showed trends similar to those of ***,a table summarizing the first and second high-correlation variables for predicting DIMS and DIMA were provided,offering a valuable reference for parameter selection in seismic damage prediction for mainshock–aftershock sequences.

关键词： machine learning mainshock-aftershock damage potential prediction the high-correlation variables SDOF systems

改良悬吊复位法联合经皮椎体成形术治疗骨质疏松性胸腰椎压缩性骨折的临床研究

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中国骨伤 2024年第1期37卷 21-26页

作者：鲁玉州王雨杨晓旭吴成强张守翠王金国吴亚东秦东丁林山东中医药大学附属日照市中医医院山东日照276800

目的:探讨改良悬吊复位法联合经皮椎体成形术治疗骨质疏松性胸腰椎压缩骨折的临床疗效。方法:自2020年2月至2021年10月采用经皮椎体成形术治疗胸腰椎骨质疏松性压缩骨折患者92例,按照治疗方式不同分为观察组和对照组,观察组先行改良悬... 详细信息

目的:探讨改良悬吊复位法联合经皮椎体成形术治疗骨质疏松性胸腰椎压缩骨折的临床疗效。方法:自2020年2月至2021年10月采用经皮椎体成形术治疗胸腰椎骨质疏松性压缩骨折患者92例,按照治疗方式不同分为观察组和对照组,观察组先行改良悬吊复位法给予伤椎复位,再行经皮椎体成形术治疗,对照组则单纯给予经皮椎体成形术治疗。观察组47例,男20例,女27例;年龄59~76(69.74±4.50)岁;骨折椎体节段T_(10)2例,T_(11)7例,T_(12)19例,L_(11)4例,L25例;对照组45例,男21例,女24例;年龄61~78(71.02±3.58)岁;骨折椎体节段:T_(10)3例,T_(11)8例,T_(12)17例,L_(11)2例,L_(2)5例。观察术中骨水泥渗漏情况,记录并比较两组手术前后疼痛视觉模拟评分(visual analogue scale,VAS)、腰椎Oswestry功能障碍指数(Oswestry disability index,ODI)、伤椎前缘高度、伤椎后凸Cobb角及骨水泥注入量等指标。结果:所有患者获得随访,时间6~10(8.45±1.73)个月。观察组2例出现骨水泥渗漏,对照组3例出现骨水泥渗漏。观察组术后伤椎前缘高度较术前均增加(P0.05);观察组术后伤椎后凸Cobb角(9.82±2.55)°,低于对照组(15.87±4.60)°(P0.05)。结论:改良悬吊复位法联合PVP手术治疗骨质疏松性胸腰椎压缩骨折均取得良好的临床疗效,可有效减轻患者腰背部疼痛,恢复椎体高度,矫正后凸畸形,改善患者腰椎功能,提高患者生活质量。

关键词：悬吊复位法胸腰椎骨质疏松性骨折压缩性骨折

Degradation of Hydrogenated Nitrile-butadiene Rubber in Aqueous Solutions of H2S or HCI

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Chemical Research in Chinese Universities 2013年第4期29卷 806-810页

作者： CONG Chuan-bo CUI Can-can MENG Xiao-yu lu Shao-jie zhou Qiong Department of Material Science and Engineering Beijing Key Laboratory of Failure Corrosion and Protection of Oil~Gas Facilities China University of Petroleum(Beijing) Beijing 102249 P. R. China

The degradation of hydrogenated nitrile-butadiene rubber（HNBR） soaped in aqueous solutions of HzS and HC1 was investigated, The samples unexposed and exposed to different solutions were characterized by 13C nuclear magnetic resonance（~3C NMR）, X-ray photoelectron and infrared spectroscopies. In contrast to those of unexposed samples and samples soaped in HCI solution, the mechanical properties of samples exposed to H2S solution signifi- cantly deteriorated, in which the new groups of C（=O）--NH2, C--S--C and C=S emerged. The mechanism of C=S and C--S--C formation was speculated, except for that of the formation of group C（=O）--NH2, which was widely discussed in acidic condition such as HC1 solution. The formation of C--S--C was due to radical reaction in- itiated by mercapto radical and that of C=S was due to nucleophilic reaction initiated by mercapto cations. This finding is helpful to understanding the seal failure of HNBR in working cnvironment containing H2S.

关键词： Hydrogenated nitrile-butadiene rubbcr(HNBR) Degradation mechanism H2S corrosion

Chloride ion battery:A new emerged electrochemical system for next-generation energy storage

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Journal of Energy Chemistry 2024年第1期88卷 154-168,I0004页

作者： Shulin Chen lu Wu yu Liu Peng zhou Qinyou An Liqiang Mai State Key Laboratory of Advanced Technology for Materials Synthesis and Processing School of Materials Science and EngineeringWuhan University of TechnologyWuhan 430070HubeiChina State Key Laboratory of Refractories and Metallurgy Institute of Advanced Materials and NanotechnologyWuhan University of Science and TechnologyWuhan 430081HubeiChina

In the scope of developing new electrochemical concepts to build batteries with high energy density,chloride ion batteries(CIBs)have emerged as a candidate for the next generation of novel electrochemical energy storage technologies,which show the potential in matching or even surpassing the current lithium metal batteries in terms of energy density,dendrite-free safety,and elimination of the dependence on the strained lithium and cobalt ***,the development of CIBs is still at the initial stage with unsatisfactory performance and several challenges have hindered them from reaching *** this review,we examine the current advances of CIBs by considering the electrode material design to the electrolyte,thus outlining the new opportunities of aqueous CIBs especially combined with desalination,chloride redox battery,*** respect to the developing road of lithium ion and fluoride ion batteries,the possibility of using solid-state chloride ion conductors to replace liquid electrolytes is tentatively *** beyond,perspectives and clear suggestions are concluded by highlighting the major obstacles and by prescribing specific research topics to inspire more efforts for CIBs in large-scale energy storage applications.

关键词： Chloride ion battery Anion shuttling Conversion reaction Chloride redox

Synthesis and self-association of dibenzothiophene derivatives for simulation of hydrogen bonding interaction in asphaltenes

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Petroleum Science 2015年第3期12卷 501-508页

作者： Ying-Hui Bian Shao-Tang Xu Le-Chun Song yu-lu zhou Li-Jun Zhu yu-Zhi Xiang Dao-Hong Xia State Key Laboratory of Heavy Oil Processing College of Chemical EngineeringChina University of Petroleum (East China)

The dibenzothiophene derivatives, namely 2-（dibenzothiophene-2-carbonyl）benzoic acid and 2-（diben- zothiophene-2-carbonyl）alkyl benzoate, were synthesized and characterized by nuclear magnetic resonance （1H NMR）, matrix-assisted laser desorption/ionization time of flight mass spectrometry, and elemental analysis. The self- association behavior of these dibenzothiophene derivatives in CH2C12 and CH3CN was investigated using UV-visible absorption spectroscopy, fourier transform infrared spec- troscopy, and atomic force microscopy. It was found that the carboxylic acid exhibited a strong self-association trend in CH2C12 solution at a concentration of about 5 × 10^-7 M. Hydrogen bonding of carboxyl in the dibenzoth- iophene derivatives was confirmed to be the main driving force for the formation of the carboxylic acid aggregates.

关键词： Dibenzothiophene derivatives Association Hydrogen bonding Simulation Asphaltenes

Neuronal conversion from glia to replenish the lost neurons

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Neural Regeneration Research 2024年第7期19卷 1446-1453页

作者： Shiyu Liang Jing zhou Xiaolin yu Shuai lu Ruitian Liu National Key Laboratory of Biochemical Engineering Institute of Process EngineeringChinese Academy of SciencesBeijingChina School of Chemical Engineering University of Chinese Academy of SciencesBeijingChina Department of Geriatric Rehabilitation Beijing Rehabilitation HospitalCapital Medical UniversityBeijingChina

Neuronal injury,aging,and cerebrovascular and neurodegenerative diseases such as cerebral infarction,Alzheimer’s disease,Parkinson’s disease,frontotemporal dementia,amyotrophic lateral sclerosis,and Huntington’s disease are characte rized by significant neuronal *** rtunately,the neurons of most mammals including humans do not possess the ability to *** of lost neurons becomes an appealing therapeutic strategy to reve rse the disease *** of pluripotent neural stem cells can supplement the missing neurons in the brain,but it carries the risk of causing gene mutation,tumorigenesis,severe inflammation,and obstructive hydrocephalus induced by brain *** of neural or non-neural lineage cells into functional neurons is a promising strategy for the diseases involving neuron loss,which may overcome the above-mentioned disadvantages of neural stem cell *** far,many strategies to transfo rm astrocytes,fibroblasts,microglia,Muller glia,NG2 cells,and other glial cells to mature and functional neurons,or for the conversion between neuronal subtypes have been developed thro ugh the regulation of transcription factors,polypyrimidine tra ct binding protein 1(PTBP1),and small chemical molecules or are based on a combination of several factors and the location in the central nervous ***,some recent papers did not obtain expected results,and discrepancies ***,in this review,we discuss the history of neuronal transdifferentiation,summarize the strategies for neuronal replenishment and conversion from glia,especially astrocytes,and point out that biosafety,new strategies,and the accurate origin of the truly co nverted neurons in vivo should be focused upon in future *** also arises the attention of replenishing the lost neurons from glia by gene therapies such as up-regulation of some transc ription factors or downregulation of PTBP1 or drug interfe rence therapies.

关键词： astrocytes neural stem cells neurodegenerative diseases neuron polypyrimidine tract binding protein 1 repair reprogramming small molecule transcription factor transdifferentiation

A low-profile metamaterial absorber with ultrawideband reflectionless and wide-angular stability

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Defence Technology（防务技术） 2024年第4期34卷 258-268页

作者： Feihong Lin Zhongming Yan Ping Wang yu Wang Hongcheng zhou Haoran lu School of Electrical Engineering Southwest Jiaotong UniversityChengdu 611756China Key Laboratory of Magnetic Suspension Technology and Maglev Vehicle Ministry of EducationChengdu 610031China China Academy of Launch Vehicle Technology Beijing 100076China

An ultrawideband reflectionless metamaterial absorber(MA)is proposed by replacing the metallic ground with the complementary split-ring resonator(CSRR)*** proposed MA exhibits-10 d B reflectivity spectrum from 1 GHz to 20 GHz,which maintains more than 90%absorption from 1.5 GHz to20 ***,it achieves angle stability for TE and TM polarization at oblique incident angles up to 40°and 65°,*** achieve broadband absorption spectrum,we have adopted a single-layer high-impedance surface(HIS)loaded with a double-layer magnetic material(MM)*** further realize the RCS reduction into a lower frequency range,we have employed the scattering cancellation technology into the traditional metallic ***,we have fabricated a sample exhibiting the 10 d B RCS reduction from 1 GHz to 20 GHz with a thickness of 10 *** and simulation results confirm that the proposed MA exhibits excellent comprehensive performance,making it suitable for many practical applications.

关键词： Metamaterial absorber(MA) Magnetic material(MM) High-impedance surface(HIS) Scattering cancellation technology Ultrawideband Wide-angular stable