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Construction of RuO2-Ru/MoO2@carbon cloth bifunctional electrocatalyst for efficient overall water splitting

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Rare Metals 2024年第10期43卷 5095-5104页

作者： Jia-Lin cai Jing-Yi Fan Xu-Dong Zhang Xin Xie Wan-yu Tian Xin-Gang Zhang Jie Ding yu-Shan Liu College of Material Henan Key Laboratory of Aeronautical Materials and Application TechnologyZhengzhou University of Aeronautics The Green Catalysis Center and College of ChemistryZhengzhou University

Efficient bifunction electrocatalyst is extremely interesting for electrochemical overall water splitting （OWS）.Herein,a new RuO2-Ru/MoO2@CC（RRM/CC） bifunctional electrocatalyst was prepared via a solid phase reaction *** obtain a suitable precursor for SPR,MoS2nanosheets and RuO2nanoparticles （NPs）were sequentially loaded onto carbon cloth conductive ***,the prepared RuO2/MoS2/CC precursor was sealed in a furnace and annealed in Ar to trigger the redox *** SPR,active RuO2-Ru/MoO2units containing metal–metal oxide interfaces were formed on CC substrate *** optimized RRM/CC sample annealed at 400℃ exhibited a overpotential of 13 m V for hydrogen evolution reaction （HER） and 231 mV for oxygen evolution reaction （OER） at 10 mA·cm-2under alkaline condition,respectively,which can be deduced to the modulated electronic structure and unique hierarchica *** addition,a low cell voltage of 1.48 V for OWS was required at 10 mA·cm-2under alkaline condition Meanwhile,RRM/CC exhibited excellent pH-independent durability.

关键词： Bifunctional Electrocatalyst Overall water splitting Ru RuO2

Heterogeneous engineering of MnSe@NC@ReS_(2) core-shell nanowires for advanced sodium-/potassium-ion batteries

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Rare Metals 2024年第8期43卷 3713-3723页

作者： Sheng-Jun Lu Jin-Yi Lin cai-Hong Wang yu-Fei Zhang Yi Zhang Hao-Sen Fan College of Materials Science and Metallurgy Engineering Guizhou University Guiyang 550025China School of Energy Science and Engineering Nanjing Tech UniversityNanjing 211816China School of Chemistry and Chemical Engineering Guangzhou UniversityGuangzhou 510006China

Sodium-ion batteries(SIBs) and potassium-ion batteries(PIBs) have been attracting great attentions and widely been exploited due to the abundant sodium/potassium ***,the preparation of high-powered anode materials for SIBs/PIBs plays a decisive role for the commercial applications of SIBs/PIBs in the *** selenides are a class of potential anode materials for SIBs/PIBs because of their small band gap and high electrical *** this work,MnSe and ReS_(2) core-shell nanowires connecting by polydopamine derived carbon nanotube(MnSe@NC@ReS_(2)) have been successfully synthesized from growing ReS_(2) nanosheets array on the surface of MnSe@NC nano wires,which present excellent Na^(+)/K^(+) storage *** applied as SIBs anode,the specific capacity of 300 mAh·g^(-1) was maintwined after 400 cycles at the current density of 1.0 A·g^(-1).Besides,it could also keep 120 mAh·g^(-1) specific capacity after 900 cycles at 1.0 A·g^(-1) for the anode of *** heterogeneous engineering and one-dimensional-two-dimensional(1D-2D) hybrid strategies could provide an ideal strategy for the synthesis of new hetero-structured anode materials with outstanding battery performance for SIBs and PIBs.

关键词： Heterogeneous engineering Core-shell nanowires MnSe@NC@ReS_(2)nanowires Na^(+)batteries K^(+)batteries

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Combinatorial reasoning-based abnormal sensor recognition method for subsea production control system

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Petroleum Science 2024年第4期21卷 2758-2768页

作者： Rui Zhang Bao-Ping cai Chao Yang yu-Ming Zhou Yong-Hong Liu Xin-Yang Qi College of Mechanical and Electronic Engineering China University of Petroleum BGP Inc. China National Petroleum Corporation

The subsea production system is a vital equipment for offshore oil and gas production. The control system is one of the most important parts of it. Collecting and processing the signals of subsea sensors is the only way to judge whether the subsea production control system is normal. However, subsea sensors degrade rapidly due to harsh working environments and long service time. This leads to frequent false alarm incidents. A combinatorial reasoning-based abnormal sensor recognition method for subsea production control system is proposed. A combinatorial algorithm is proposed to group sensors. The long short-term memory network(LSTM) is used to establish a single inference model. A counting-based judging method is proposed to identify abnormal sensors. Field data from an offshore platform in the South China Sea is used to demonstrate the effect of the proposed method. The results show that the proposed method can identify the abnormal sensors effectively.

关键词： Abnormal sensor Combinatorial algorithm Fault identification Subsea production control system

Key genes and regulatory networks for diabetic retinopathy based on hypoxia-related genes:a bioinformatics analysis

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International Journal of Ophthalmology(English edition) 2024年第8期17卷 1411-1417页

作者： cai-Han yu cai-Xia Wu Dai Li Lan-Lan Gong Xu-Dong Lyu Jie Yang Department of Ophthalmology Xianning Central HospitalThe First Affiliated Hospital of Hubei University of Science and TechnologyXianning 437100Hubei ProvinceChina School of Pharmacy Xianning Medical CollegeHubei University of Science and TechnologyXianning 437100Hubei ProvinceChina School of Optometry Hubei University of Science and TechnologyXianning 430071Hubei ProvinceChina

AIM:To prevent neovascularization in diabetic retinopathy(DR)patients and partially control disease ***:Hypoxia-related differentially expressed genes(DEGs)were identified from the GSE60436 and GSE102485 datasets,followed by gene ontology(GO)functional annotation and Kyoto Encyclopedia of Genes and Genomes(KEGG)pathway enrichment *** candidate drugs were screened using the CMap ***,a protein-protein interaction(PPI)network was constructed to identify hypoxia-related hub genes.A nomogram was generated using the rms R package,and the correlation of hub genes was analyzed using the Hmisc R *** clinical significance of hub genes was validated by comparing their expression levels between disease and normal groups and constructing receiver operating characteristic curve(ROC)***,a hypoxia-related miRNA-transcription factor(TF)-Hub gene network was constructed using the NetworkAnalyst online ***:Totally 48 hypoxia-related DEGs and screened 10 potential candidate drugs with interaction relationships to upregulated hypoxia-related genes were identified,such as ruxolitinib,meprylcaine,and *** addition,8 hub genes were also identified:glycogen phosphorylase muscle associated(PYGM),glyceraldehyde-3-phosphate dehydrogenase spermatogenic(GAPDHS),enolase 3(ENO3),aldolase fructose-bisphosphate C(ALDOC),phosphoglucomutase 2(PGM2),enolase 2(ENO2),phosphoglycerate mutase 2(PGAM2),and 6-phosphofructo-2-kinase/fructose-2,6-biphosphatase 3(PFKFB3).Based on hub gene predictions,the miRNA-TF-Hub gene network revealed complex interactions between 163 miRNAs,77 TFs,and hub *** results of ROC showed that the except for GAPDHS,the area under curve(AUC)values of the other 7 hub genes were greater than 0.758,indicating their favorable diagnostic ***:PYGM,GAPDHS,ENO3,ALDOC,PGM2,ENO2,PGAM2,and PFKFB3 are hub genes in DR,and hypoxia-related hub genes exhibited favorable diagnostic perform

关键词： diabetic retinopathy hypoxia-related genes hub genes miRNA-TF-Hub gene drug prediction

A dual-mode integration framework and application to agile feedback design of launch vehicles

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International Journal of Mechanical System Dynamics 2024年第2期4卷 226-239页

作者： Wenfeng Zhang Xiaoshuang cai Zhendong Liu Shan Luo Rendong yu Shanghai Institute of Aerospace System Engineering ShanghaiChina

In recent decades,the design of complex systems like launch vehicles in the aerospace industry has presented engineers with challenges that go beyond system *** such as time-to-market pressures and intricate industrial processes have underscored the increasing significance of agile design *** design is derived from the simplification of the design process and enhancing cross-domain data transmission and *** methods based on model-based system engineering have improved iteration times in system architecture design,challenges persist in cross-domain data *** to the diversity of complex system models and data,a single-mode integration method is difficult to realize the data link construction of all tools *** address this challenge,this paper proposes a dualmode data integration framework with expansibility,universality,and cost-efficiency which leverages the benefits of Remote Procedure Call and Intermediate Exchange Module,addressing the challenge of constructing cross-domain data links under single-mode *** this study,two critical requirements of the first-and second-stage separation systems,namely,weight and minimum separation gap,are selected for data feedback.A Modelica-based multiphysics simulation model is developed in MWorks;visualization and computation of the minimum gap are carried out in *** bridge the gap between domain-specific tools,Matlab and Functional Mock-up Unit modules are introduced as middleware,facilitating data feedback *** entire simulation process is orchestrated using activity diagrams in the MagicDraw *** study delves into the influence of critical design parameters,such as the initial angular velocity of separation and the thrust of the retro rocket,on the minimum separation *** provides an analysis of minimum separation gap variations under uncertain operating conditions and examines design ***,the paper highlights the signifi

关键词： data feedback dual-mode data integration FMU launch vehicle MBSE Modelica

HF-VHF NEMS resonators enabled by 2D semiconductor ReSe2

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Science China(Information Sciences) 2024年第10期67卷 393-394页

作者： Jie TANG Ziluo SU shuang cai Yalan WANG Luming WANG Jiaqi WU Jiaze QIN Jiankai ZHU Bo XU Juan XIA Zenghui WANG Institute of Fundamental and Frontier Sciences University of Electronic Science and Technology of China State Key Lab of Transducer Technology Shanghai Institute of Microsystem and Information TechnologyChinese Academy of Sciences State Key Laboratory of Electronic Thin Films and Integrated Devices University of Electronic Science and Technology of China

Two-dimensional（2D） semiconductors offer a plethora of new opportunities for constructing novel *** them, rhenium diselenide(ReSe2, crystal structure in Figure 1（a）) stands out due to its unique interlayer couplin...

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Natural products inspired[3+2]cycloaddition enables efficient construction of hydroxylated tetrahydrofuran acetals and concise syntheses of lignans

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Science China Chemistry 2024年第7期67卷 2306-2313页

作者： Dong-yue cai Weiming Shi Zhao-Hui Jin Zhi-Xiang yu Jin-Xin Zhao Jian-Min yue State Key Laboratory of Drug Research Shanghai Institute of Materia MedicaChinese Academy of SciencesShanghai 201203China University of Chinese Academy of Sciences Beijing 100049China Beijing National Laboratory for Molecular Sciences(BNLMS) Key Laboratory of Bioorganic Chemistry and Molecular Engineering of Ministry of EducationCollege of ChemistryPeking UniversityBeijing 100871China

Mimicking biosynthetic pathways of hongkonoids led to the development of a new Cu(Ⅰ)-catalyzed[3+2]cycloaddition ofα-hydroxyketone andβ-keto enol ethers,affording tetrahydrofuran acetals in a highly diastereoselective manner and 100%atom *** studies on the mechanism disclosed a concerted but asynchronous Michael addition/aldol *** the same importance,this methodology provides a practical biomimetic approach for one-step construction of the dibenzylbutyrolactol lignan backbone starting from two phenyl propane derivatives,opening up a powerful new approach for lignan synthesis,which is showcased by succinct total syntheses of two biologically important aryltetralin-type lignans,β-apopicropodophyllin and *** the mild and operationally simple conditions,the developed chemistry might have a promising prospect in potential industrial applications.

关键词： [3+2]cycloaddition transition-metal catalysis tetrahydrofuran lignans natural products

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Universal and efficient hybrid modeling and direct slicing method for additive manufacturing processes

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Advances in Manufacturing 2024年第2期12卷 300-316页

作者： Sen-Lin Wang Li-Chao Zhang Chao cai Ming-Kai Tang Si Chen Jiang Huang yu-Sheng Shi State Key Laboratory of Materials Processing and Die and Mould Technology Huazhong University of Science and TechnologyWuhan430074People’s Republic of China School of Machinery and Automation Wuhan University of Science and TechnologyWuhan430081People’s Republic of China

Model design and slicing contour generation in additive manufacturing(AM)data processing face challenges in terms of efficiency and scalability when stereolithography files generated by complex functionally graded structures have millions of *** paper proposes a hybrid modeling and direct slicing method for AM to efficiently construct and handle complex three-dimensional(3D)*** 3D solids,including conformal multigradient structures,were uniformly described using a small amount of data via signed distance *** hybrid representations were quickly discretized into numerous disordered directed lines using an improved marching squares *** establishing a directional HashMap to construct the topological relationship between lines,a connecting algorithm with linear time complexity is proposed to generate slicing contours for *** method replaces the mesh reconstruction and Boolean operation stages and can efficiently construct complex conformal gradient models of arbitrary topologies through hybrid ***,the time and memory consumption of direct slicing are much lower than those of previous methods when handling hybrid models with hundreds of millions of faces after mesh reconstruction.

关键词： Additive manufacturing(AM) Hybrid modeling Direct slicing Signed distance field

Co-adsorption and selective-adsorption of heavy metals and dyes from aqueous solution by bio-based humus/chitosan hydrogels

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Journal of Environmental Sciences 2024年第11期145卷 193-204页

作者： Rongping Chen Chenghao Gan Bingcai cai Ruxue Liu Wenjie Xu Weize Yin Hongyi Li Lei yu Qiang Yong College of Biology and the Environment Nanjing Forestry UniversityNanjing 210037China College of Chemical Engineering Nanjing Forestry UniversityNanjing 210037China

An eco-friendly adsorbent was prepared by reverse suspension crosslinking method to remove multiple pollutants from aqueous *** raw materials,derived from humus(HS)and chitosan(CS),are biodegradable and low-cost natural *** combining HS with CS,the adsorption capacity was significantly improved due to compensation effects between the two ***/CS exhibited the features of amphoteric adsorption through pH adjustment,enabling it to adsorb not only anionic pollutants(Methyl Orange(MO)and Cr(VI)),but also cationic ones(Methylene Blue(MB)and Pb(II)).The adsorption capacities were approximately 242 mg/g,69 mg/g,188 mg/g and 57 mg/g for MO,Cr(VI),MB and Pb(II),***/CS showed a slight preference for MO in MO/Cr(VI)co-adsorption system,whereas strong selectivity for MB over Pb(II)in MB/Pb(II)system under acidic condition(pH<3.0).This selective behavior would allow for potential applications in separating MB/Pb(II)effluents and selectively recycling Pb(II)in acidic *** isothermal and kinetic adsorption behaviors followed Langmuir model and pseudo-second-order model,*** density functional theory(DFT)confirmed that the interaction between metal ions and adsorbents was primarily attributed to chelation and electrostatic adsorption,owing to nitric and oxygenic functional ***,the adsorption mechanisms for dyes were involved in electrostatic attraction,H-bond andπ-πbond,due to available hydrogen,oxygen,nitrogen atoms and aromatic groups on the surface of adsorbent and *** adsorbent could be efficiently regenerated and retained over 90%of its adsorption capacity after five cycles,which has a potential for practical applications in water treatment.

关键词： Adsorption Density functional theory(DFT) Humus Chitosan