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Structural Topology Design of Container Ship Based on Knowledge-Based Engineering and Level Set Method 认领 引用 被引量：5
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作者 崔进举 王德禹 史琪琪 《China Ocean Engineering》 SCIE EI CSCD 2015年第4期551-564,共14页
Knowledge-Based Engineering （KBE） is introduced into the ship structural design in this paper. From the implementation of KBE, the design solutions for both Rules Design Method （RDM） and Interpolation Design Meth... Knowledge-Based Engineering （KBE） is introduced into the ship structural design in this paper. From the implementation of KBE, the design solutions for both Rules Design Method （RDM） and Interpolation Design Method （IDM） are generated. The corresponding Finite Element （FE） models are generated. Topological design of the longitudinal structures is studied where the Gaussian Process （GP） is employed to build the surrogate model for FE analysis. Multi-objective optimization methods inspired by Pareto Front are used to reduce the design tank weight and outer surface area simultaneously. Additionally, an enhanced Level Set Method （LSM） which employs implicit algorithm is applied to the topological design of typical bracket plate which is used extensively in ship structures. Two different sets of boundary conditions are considered. The proposed methods show satisfactory efficiency and accuracy. 展开更多
关键词 Knowledge-Based Engineering （KBE） Level Set Method （LSM） Gaussian Process （ GP）
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Containership Structural Design and Optimization Based on Knowledge-Based Engineering and Gaussian Process 认领 引用 被引量：1
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作者 崔进举 王德禹 VLAHOPOULOS Nickolas 《Journal of Shanghai Jiaotong university(Science)》 EI 2014年第2期205-218,共14页
Knowledge-based engineering(KBE) has made success in automobile and molding design industry, and it is introduced into the ship structural design in this paper. From the implementation of KBE, the deterministic design... Knowledge-based engineering(KBE) has made success in automobile and molding design industry, and it is introduced into the ship structural design in this paper. From the implementation of KBE, the deterministic design solutions for both rules design method(RDM) and interpolation design method(IDM) are generated. The corresponding finite element model is generated. Gaussian process(GP) is then employed to build the surrogate model for finite element analysis, in order to increase efficiency and maintain accuracy at the same time, and the multi-modal adaptive importance sampling method is adopted to calculate the corresponding structural reliability.An example is given to validate the proposed method. Finally, the reliabilities of the structures' strength caused by uncertainty lying in water corrosion, static and wave moments are calculated, and the ship structures are optimized to resist the water corrosion by multi-island genetic algorithm. Deterministic design results from the RDM and IDM are compared with each separate robust design result. The proposed method shows great efficiency and accuracy. 展开更多
关键词 knowledge-based engineering(KBE) Gaussian process(GP) robust optimization rules design method(RDM) interpolation design method(IDM)
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Knowledge-based engineering approach for the support of ship structure design 认领 引用
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作者 杨和振 Chen Jinfeng +1 位作者 Ma Ning Wang Deyu 《High Technology Letters》 EI CAS 2013年第3期240-245,共6页
The paper presents a knowledge-based engineering （KBE） approach for ship node components design. In the ship design process, many design tasks need design experiences to support. Howev- er, a ship design process is ... The paper presents a knowledge-based engineering （KBE） approach for ship node components design. In the ship design process, many design tasks need design experiences to support. Howev- er, a ship design process is a complicated process with many simultaneously repetitive and time-con- suming activities. In this research, the method combines KBE with Tribon system＇s built-in devel- opment language tools of Vitesse, captures and applies design knowledge for achieving standard com- ponents intelligent design modeling. A case study and industry implementation illustrate the feasibili- ty of the proposed methodology. The KBE technique can provide not only proper references, sug- gests and supports but also knowledge integrated in the ship structure design. Especially, these rules related to the design can avoid lots of design mistakes. During the ship design stage, getting more precise and better designs will not only reduce the time of rework and wasting resources but also shorten the construction time_ imnrov~ clilnl;hz ~nA nrnf;t 展开更多
关键词 knowledge-based engineering （ KBE） ship design components library Tribon system
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Knowledge-Based Engineering System and Its Application in Missile Seeker Design 认领 引用 被引量：1
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作者 ZHAO Hui XI Ping 《Computer Aided Drafting,Design and Manufacturing》 2006年第1期38-43,共6页
Development and application of a prototype KBE system is presented, details of the development tools and platforms, system flow chart, hybrid knowledge representation, and integrated system framework are illustrated. ... Development and application of a prototype KBE system is presented, details of the development tools and platforms, system flow chart, hybrid knowledge representation, and integrated system framework are illustrated. All design tasks of a missile seeker are integrated into a single computer-aided environment with a clear guidance to design processes from the user interface. 展开更多
关键词 knowledge-base engineering （KBE） knowledge representation systemintegration missile seeker
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Internet of Things Software Engineering Model Validation Using Knowledge-Based Semantic Learning 认领 引用
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作者 Mahmood Alsaadi Mohammed E.Seno Mohammed I.Khalaf 《Intelligent Automation & Soft Computing》 2025年第1期29-52,共24页
The agility of Internet of Things(IoT)software engineering is benchmarked based on its systematic insights for wide application support infrastructure developments.Such developments are focused on reducing the interfa... The agility of Internet of Things(IoT)software engineering is benchmarked based on its systematic insights for wide application support infrastructure developments.Such developments are focused on reducing the interfacing complexity with heterogeneous devices through applications.To handle the interfacing complexity problem,this article introduces a Semantic Interfacing Obscuration Model(SIOM)for IoT software-engineered platforms.The interfacing obscuration between heterogeneous devices and application interfaces from the testing to real-time validations is accounted for in this model.Based on the level of obscuration between the infrastructure hardware to the end-user software,the modifications through device replacement,capacity amendments,or interface bug fixes are performed.These modifications are based on the level of semantic obscurations observed during the application service intervals.The obscuration level is determined using knowledge learning as a progression from hardware to software semantics.The results reported were computed using specific metrics obtained from these experimental evaluations:an 8.94%reduction in interfacing complexity and a 15.04%improvement in integration progression.The knowledge of obscurationsmaps themodifications appropriately to reinstate the agility testing of the hardware/software integrations.This modification-based semantics is verified using semantics error,modification time,and complexity. 展开更多
关键词 Interfacing complexity IoT semantics assessment software engineering
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Nanocellulose-Induced“Surface-Lock”Engineering:Curbing the Dissolution of MnO2for High-Performance Zn-MnO2Flexible Electrodes 认领 引用 被引量：2
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作者 Meng Zhang Ting Xu +8 位作者 Wei Liu Han Zhang Junjie Qi Xuan Wang Yaxuan Wang Liyu Zhu Kun Liu Junfeng Wang Chuanling Si 《Carbon Energy》 SCIE EI CAS CSCD 2026年第4期1-14,共14页
Carbon-based substrates in Zn-MnO2flexible batteries have issues of low adhesion to MnO2,impacting cycle stability and capacity performance.A triple-synergistic strategy integrating C-O-Mn covalent bonding,wetta... Carbon-based substrates in Zn-MnO2flexible batteries have issues of low adhesion to MnO2,impacting cycle stability and capacity performance.A triple-synergistic strategy integrating C-O-Mn covalent bonding,wettability optimization,and hierarchical mesoporous engineering via cellulose nanofibers/carbon nanotube(CNF/CNT)-modified carbon cloth(CC)was proposed.This design achieves a“surface-locking”effect between the substrate and electrode materials,which was proven through theory and experiments.Density functional theory(DFT)simulations validate the“surface-locking”mechanism,where oxygen functionalities on CNF can form robust CO-Mn bonds with MnO2,inducing an increase in MnO2adsorption energy from-0.21 e V(pristine CC)to-1.36 e V,effectively suppressing Mn dissolution.Optimal wettability(contact angle:97°)reduced Zn2+desolvation and water-induced side reactions.Hierarchical pore structures accelerated Zn2+diffusion.The optimized CC@CNF1/CNT2-MnO2cathode achieves 92%capacity retention after 2000 cycles at 1 A/g.This study highlights a surface engineering strategy that effectively addresses the individual challenges associated with interfacial adhesion,reaction kinetics,and ion transport.This strategy offers fundamental insights into electrode interface modification for the development of nextgeneration flexible energy storage systems. 展开更多
关键词 cellulose nanofibers flexible zinc batteries interface engineering
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Synthetic metabolic engineering of functional crops:Boosting nutrition and human health 认领 引用 被引量：5
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作者 Nan Chai Jie Xu +12 位作者 Ruixiang Zhang Guangzhou Li Jun Wen Liying Su Yang Xue Tie Li Jialin Liu Dongchang Zeng Jiantao Tan Jiaqi Huang Letian Chen Yao-Guang Liu Qinlong Zhu 《The Crop Journal》 SCIE CSCD 2026年第1期8-21,共14页
A growing global population and the increasing prevalence of diet-related health issues such as“hidden hunger”,obesity,hypertension,and diabetes necessitate a fundamental rethinking of crop design and breeding.Synth... A growing global population and the increasing prevalence of diet-related health issues such as“hidden hunger”,obesity,hypertension,and diabetes necessitate a fundamental rethinking of crop design and breeding.Synthetic metabolic engineering offers a method to modify and redesign metabolic pathways to increase the nutritional value of crops.We summarize recent advances in the biofortification of key nutrients including provitamin A,vitamin C,vitamin B9,iron,zinc,anthocyanins,flavonoids,and unsaturated fatty acids.We discuss the potential of multi-gene stacking,gene editing,enzyme engineering,and artificial intelligence in synthetic metabolic engineering.We propose future research directions and potential solutions centered on leveraging AI-driven systems biology,precision gene editing,enzyme engineering,agrobacterium-mediated genotype-independent transformation,and modular metabolic engineering strategies to develop next-generation nutritionally enhanced super crops and transform global food systems. 展开更多
关键词 Synthetic biology Synthetic metabolism engineering Functional crops Multigene stacking and gene editing Artificial intelligence
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Crop metabolic engineering towards enhanced resistance to pests and pathogens 认领 引用 被引量：1
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作者 Jiaojiao Wang Jinyue Yang +5 位作者 Junxing Yu Yaxian Liu Youping Wang Amr El-Demerdash Wenbin Zhou Dewei Wu 《The Crop Journal》 SCIE CSCD 2026年第1期48-60,共13页
Plants produce a vast array of specialized metabolites that serve as essential defenses against herbivores and pathogens.However,the capacity to produce these compounds differs substantially among plant species and is... Plants produce a vast array of specialized metabolites that serve as essential defenses against herbivores and pathogens.However,the capacity to produce these compounds differs substantially among plant species and is frequently diminished during domestication.Advances in synthetic metabolic engineering enable efficient elucidation and engineering of plant specialized metabolic pathways active in crop pest and pathogen resistance.This review summarizes strategies and workflows for selecting defensive metabolic pathways,identifying candidate biosynthetic genes,and rewiring native or introducing heterologous pathways to enhance crop resistance to pests and pathogens.Strategies include weighted gene co-expression network construction,biosynthetic gene cluster scanning,and metabolite genome-wide association studies for pathway discovery,as well as transcriptional reprogramming,enzyme activity optimization,and transporter deployment for pathway engineering.We further discuss challenges in using synthetic metabolic engineering to enhance crop resistance and highlight the potential of artificial intelligence in addressing them. 展开更多
关键词 Crop resistance Synthetic metabolic engineering Plant specialized metabolite Synthetic biology
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Synergistically coupling of vertically oriented Ru/Co co-doped MoS2 with interfacial engineering for efficient electrochemical hydrogen evolution 认领 引用
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作者 Yanqi Ding Tao Zhang +5 位作者 Xue Ren Lingyun Wang Qian Chen Hongbing Song Meng Xiao Tingting Huang 《Chinese Journal of Chemical Engineering》 SCIE EI CAS CSCD 2026年第5期127-138,共12页
This article proposes an optimized strategy integrating bimetallic doping with interfacial wettability engineering to successfully fabricate a Ru-Co bimetallic-doped MoS2 catalyst vertically oriented on modified ca... This article proposes an optimized strategy integrating bimetallic doping with interfacial wettability engineering to successfully fabricate a Ru-Co bimetallic-doped MoS2 catalyst vertically oriented on modified carbon cloth for efficient hydrogen evolution reaction.The treated carbon cloth not only enhances its surface hydrophilicity but also provides nucleation sites for the growth of RuCo-MoS2 nanosheets.Subsequently,the development of an oriented growth induction strategy enables the vertical alignment of bimetallic atom-doped MoS2 on modified carbon cloth.This vertically grown structure is conducive to exposing more active sites,shortening the proton transport path,reducing the charge transfer impedance.Moreover,this study employs a reductive bonding technique to precisely modulate the coordination environments and electron distributions of co-doped Co and Ru bimetallic atoms,as well as significantly improving the hydrogen evolution reaction kinetics.Therefore,the as-prepared RuCo-MoS2/MCC catalyst demonstrates excellent HER performance in acidic electrolyte,exhibiting a relatively low overpotential of 62 mV at 10 mA·cm-2and a small Tafel slope of 48.2 mV·dec-1. 展开更多
关键词 Molybdenum disulfide Interfacial wettability engineering Defect engineering Bimetallic doping Electrocatalysis Hydrogen production
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Molecular sieving and skeletal engineering of a pitch precursor to overcome reaction heterogeneity for high-performance hard carbon anodes in sodium-ion batteries 认领 引用
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作者 Zenghao Wang Bin Lou +7 位作者 Jun Li Luning Chai Ning Xiang Shifu Cheng Zhichen Zhang Xiangen Shan Rongheng Gou Dong Liu 《Journal of Energy Chemistry》 SCIE EI CAS CSCD 2026年第5期290-301,I0007,共12页
Pitch-derived hard carbons(HC)are promising anodes for sodium-ion batteries(SIBs)due to their high carbonization yield and low cost.However,the inherent compositional heterogeneity of pitch induces non-uniform oxidati... Pitch-derived hard carbons(HC)are promising anodes for sodium-ion batteries(SIBs)due to their high carbonization yield and low cost.However,the inherent compositional heterogeneity of pitch induces non-uniform oxidative cross-linking during conventional pre-oxidation,which not only renders the microstructure of HC difficult to regulate but also significantly degrades its sodium storage performance.Here,we identify the“shielding effect”of oxidation-inert components in pitch as the root cause of this structural inhomogeneity.To overcome this limitation,we propose a novel“sieving-and-reinforcement strategy”.This involves liquid-phase crosslinking to construct a polar three-dimensional(3D)carbon skeleton,followed by stepwise extraction as a molecular sieving process to remove inert components and expose the reactive skeleton,and finally,oxygen etching as a reinforcement step to drastically enhance the crosslinking density and defect population.This controllably engineered carbon skeleton in-situ evolves into an HC with a uniform hierarchical porous structure,featuring abundant ultramicropores,optimally sized closed pores(-2.15 nm),and ultrathin pore walls during carbonization.The resulting HC anode delivers a high reversible capacity of 363.3 mAh g-1at 50 mA g-1,with an impressive plateau capacity contribution of 71.5%.It also demonstrates exceptional cycling stability,retaining203.1 mAh g-1after 500 cycles at a high current density of 1000 mA g-1.This work provides a fundamental understanding of precursor engineering,paving the way for the rational design of advanced carbon materials for next-generation energy storage. 展开更多
关键词 Hard carbon Sodium-ion batteries Pitch Precursor engineering Reaction heterogeneity Skeletal engineering Closed pores
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Facet engineering of metal-organic frameworks enables high piezoelectricity and piezocatalysis:A case study of ZIF-8 认领 引用
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作者 Zhemi Xu Haolin Cui +9 位作者 Shule Zhang Peiyuan Guan Tianhao Ji Jin Yan Qianyu Li Dewei Chu Yunxuan Weng Zhimin Ao Yang Liu Jian Jin 《Chinese Chemical Letters》 SCIE CAS CSCD 2026年第4期312-318,共7页
The exposure of specific facets in catalysts plays a pivotal role in surface/interface reactions.This study systematically explores facet engineering as a novel approach to enhancing the piezoelectric and piezo-photoc... The exposure of specific facets in catalysts plays a pivotal role in surface/interface reactions.This study systematically explores facet engineering as a novel approach to enhancing the piezoelectric and piezo-photocatalytic capabilities of metal-organic frameworks(MOFs),with a focus on ZIF-8 as a model compound.By selectively exposing specific facets-(100),(110),and a combination of both in mixed configurations,this research examines how facet orientation affects piezoelectric properties,charge separation efficiency,and catalytic performance.The ZIF-8 samples,identified as ZIF-8-RD,ZIF-8-CUBE,ZIF-8-TRD_1,and ZIF-8-TRD2 demonstrated distinct catalytic activities in photocatalysis,piezocatalysis,and piezo-photocatalysis.Notably,ZIF-8-TRDs,with the mixed-facet exposure,showed superior catalytic performance,achieving up to 94%degradation of tetracycline(TC)in piezo-photocatalysis,a substantial improvement over the single-facet variant.This enhanced performance is attributed to the mixed facets'higher carrier concentration and superior charge separation facilitated by the increased internal piezoelectric potential.Density functional theory(DFT)calculations corroborate the experimental results,revealing that mixed facets contribute to a larger dipole moment,indicating greater structural asymmetry and piezoelectric efficiency.The findings underscore facet engineering as an effective strategy to optimize MOF-based catalysts,opening avenues for high-performance materials tailored for environmental remediation and sustainable energy applications.This work not only pioneers facet engineering in MOF piezophotocatalysts but also opens new avenues for the development and enhancement of high-performance MOF in piezoelectricity. 展开更多
关键词 MOFs Facet engineering Piezoelectric properties Piezo-photocatalysis
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MXene-Based Materials:Compositional Engineering for High-Performance Microwave Absorption 认领 引用
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作者 Pan-Pan Zhou Shi-Lin Yuan +6 位作者 Wen-Yu Cao Xiao-Chi Lu Ya-Wei Kuang Xue-Kun Hong Yu-Shen Liu Li-Xi Wang Qi-Tu Zhang 《Rare Metals》 SCIE EI CAS CSCD 2026年第3期183-215,共33页
The rapid advancement of aerospace and electronic information technologies has imposed increasingly stringent requirements on microwave absorbing materials(MAMs),such as high absorption efficiency,lightweight,and envi... The rapid advancement of aerospace and electronic information technologies has imposed increasingly stringent requirements on microwave absorbing materials(MAMs),such as high absorption efficiency,lightweight,and environmental stability,making the development of advanced MAMs urgent for both civilian and national defense applications.MXenes,as an emerging two-dimensional material,exhibit great potential as MAMs due to their tunable surface chemistry,excellent conductivity,and diverse composite properties.However,existing reviews of MXene-based MAMs lack a systematic overview of the synergistic mechanisms between MXenes and other novel materials as well as composition and structure synergistic regulation strategies for performance optimization.This work comprehensively reviews the latest research progress on MXene-based MAMs,first elaborating on their various loss mechanisms,including conductive loss,polarization loss,and magnetic loss.Furthermore,various composite strategies(hybridization with carbon-based,magnetic,polymeric,and ceramic materials)and their synergistic effects are explored together with the impact of structural engineering(0D/1D/2D/3D,heterostructures,porous structures)on the tuning of electromagnetic wave absorption performance.Finally,this work discusses the current challenges and future development directions of MXene-based MAMs,aiming to establish composition-structure-function correlations and provide a reference for their future development. 展开更多
关键词 compositional engineering magnetoelectric synergy microwave absorption MXene
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Defect engineering of TiO2 for efficient photocatalytic transfer hydrogenation with palladium as cocatalyst and water as a hydrogen source 认领 引用
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作者 En Zhao Jingyuan Su +6 位作者 Hehe Fan Bing Nan Lina Li Haifeng Qi Weiwei Fang Wenjun Zhang Zupeng Chen 《Green Energy & Environment》 SCIE EI CAS CSCD 2026年第2期557-564,共8页
Photocatalytic transfer hydrogenation using water as the proton source has emerged as an attractive and green approach for the catalytic reduction of unsaturated bonds.Herein,we report an oxygen-defective TiO2-supp... Photocatalytic transfer hydrogenation using water as the proton source has emerged as an attractive and green approach for the catalytic reduction of unsaturated bonds.Herein,we report an oxygen-defective TiO2-supported palladium catalyst(Pd-TiO2-Ov)for efficient photocatalytic water-donating transfer hydrogenation of anethole towards 4-n-propylanisole in a high yield of 99.9%,which is significantly higher compared to the pristine TiO2-supported palladium catalyst(Pd-TiO2,74%).The enhanced performance is ascribed to the presence of oxygen vacancies,which facilitate light absorption and suppress the recombination of photogenerated electron-hole pairs.Furthermore,the Pd-TiO2-Ov is versatile in hydrogenating various alkene substrates including those with hydroxyl,ether,fluoride,and chloride functional groups in full conversion,thus offering a green method for transfer hydrogenation of alkenes.This study provides new insights and advances in current hydrogenation technology with water as the proton source. 展开更多
关键词 Photocatalysis Transfer hydrogenation Palladium Defect engineering Water splitting
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Band engineering and recombination mechanisms in lead-free perovskite solar cells 认领 引用
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作者 Wei Liu Tingxue Zhou +1 位作者 Liang Chu Xing’ao Li 《Chinese Physics B》 SCIE EI CAS CSCD 2026年第2期703-712,共10页
All-inorganic lead-free perovskite solar cells have emerged as environmentally benign candidates;however,their device performance is still constrained by pronounced carrier recombination losses in the bulk and at inte... All-inorganic lead-free perovskite solar cells have emerged as environmentally benign candidates;however,their device performance is still constrained by pronounced carrier recombination losses in the bulk and at interfaces.By combining energy band alignment analysis with detailed modeling of recombination mechanisms,a systematic strategy for optimizing hole transport layers is developed.The results reveal that a negative valence band offset produces a cliff-like interface,which facilitates hole extraction while also accounting for the observed variations in open-circuit voltage.Furthermore,short-circuit current losses are quantitatively attributed to different recombination pathways,modeled by incorporating radiative,Shockley–Read–Hall,Auger,and interface recombination processes.This comprehensive approach not only clarifies the correlation between energy level alignment and recombination dynamics but also highlights the competing roles of band offset and interface defects in determining device performance.The optimized device architecture,based on Ge-based lead-free perovskites,achieves a power conversion efficiency of 25.1%,with an open-circuit voltage of 1.29 V,a short-circuit current density of 22.5 mA·cm-2,and a fill factor of 86.3%.These findings provide theoretical guidance for designing stable,high-performance,and environmentally friendly lead-free perovskite solar cells. 展开更多
关键词 perovskite solar cells lead-free band engineering recombination
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Support engineering of single-atom electrocatalysis:Mechanism analysis and application expansion 认领 引用
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作者 Mingying Chen Junjie Ma +3 位作者 Xiyong Chen Qian Liu Yanhong Feng Xijun Liu 《Chinese Chemical Letters》 SCIE CAS CSCD 2026年第4期117-127,共11页
Electrocatalysis stands as a cornerstone in the pursuit of clean energy conversion and environmental sustainability,with single-atom catalysts(SACs)emerging as a transformative paradigm for enhancing electrocatalytic ... Electrocatalysis stands as a cornerstone in the pursuit of clean energy conversion and environmental sustainability,with single-atom catalysts(SACs)emerging as a transformative paradigm for enhancing electrocatalytic efficiency.In the architectural design of SACs,supports transcend conventional roles as mere supports,actively governing catalytic performance via robust metal-support interactions(SMSI).This review comprehensively analyses the key role of support engineering in modulating SACs performance.The study begins with a systematic assessment of currently popular SACs synthesis strategies,critically comparing their advantages and limitations.Through a hierarchical analysis,it reveals the impact of various support materials,such as carbon-based materials,metal oxides,MXenes,and metal-organic frameworks(MOFs),on the catalytic performance of SACs,with emphasis on their structural characteristics,electronic properties,and interaction mechanisms with active sites.The review further explores applications in energy conversion/storage and environmental remediation,while addressing current challenges and proposing future research directions for SACs development.By providing actionable insights,this work aims to guide the design of next-generation SACs and advance sustainable electrocatalysis. 展开更多
关键词 Electrocatalysis Single-atom catalysts Strong metal-support interactions Support engineering
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Enhancing the Ionic Conduction of Ceria-Based Electrolytes for LT-SOFCs via Entropy Engineering 认领 引用
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作者 Xiu-Xiu Li En-Yi Hu +4 位作者 Fa-Ze Wang Jun Wang Chen Xia Aleksandar Staykov Peter Lund 《Rare Metals》 SCIE EI CAS CSCD 2026年第1期616-628,共13页
Developing alternative electrolytes with enhanced ionic conductivity is crucial to reducing the operating temperature of solid oxide fuel cells(SOFCs)for broader applications.Entropy engineering offers many opportunit... Developing alternative electrolytes with enhanced ionic conductivity is crucial to reducing the operating temperature of solid oxide fuel cells(SOFCs)for broader applications.Entropy engineering offers many opportunities for material design,presenting a promising avenue to develop new electrolytes.In this work,two new ceria-based electrolytes,the medium-entropy Sm0.25La0.25Pr0.25Ce0.25O2-δ(SLPC25)and low-entropy Sm0.05La0.05Pr0.05Ce0.85O2-δ(SLPC5)are designed for low-temperature SOFCs using the entropy engineering strategy,with pure CeO2as a reference.It is found that higher configurational entropy leads to enriched oxygen vacancies in the two oxides and thus enhances the ionic transport,which is verified through material characterizations,density functional theory calculations,and cell performance tests.The medium-entropy SLPC25exhibits superior cell performance(836 mW cm-2)and improved ionic conductivity(0.09 S cm-1)at 520℃as compared to those of the low-entropy SLPC5 and CeO2.Further investigation confirms the hybrid proton-oxygen ion conduction and good fuel cell stability of the SLPC25 electrolyte.This study indicates that higher entropy enhances the ionic conductivity and cell performance of ceria-based electrolytes.The entropy engineering strategy used here holds significant potential to develop advanced electrolytes for low-temperature SOFCs. 展开更多
关键词 ceria electrolyte electrochemical performance entropy engineering ionic conductivity SOFCs
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Efficient H2O2 photosynthesis through linker engineering of benzotrithiophene-based covalent organic frameworks 认领 引用
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作者 Ke-Hui Xie Cong-Xue Liu +3 位作者 Yan Geng Jing-Lan Kan Guang-Bo Wang Yu-Bin Dong 《Chinese Journal of Catalysis》 SCIE EI CAS CSCD 2026年第4期271-281,共11页
The photogenerated carrier separation efficiency and material wettability are of critical importance for aqueous-phase photocatalytic reactions,achieving both simultaneously poses a significant challenge owing to the ... The photogenerated carrier separation efficiency and material wettability are of critical importance for aqueous-phase photocatalytic reactions,achieving both simultaneously poses a significant challenge owing to the inherent interdependencies and trade-offs involved.In this work,a series of isoreticular benzotrithiophene-based covalent organic frameworks(COFs)were successfully synthesized by incorporating diverse hydrophobic and hydrophilic functional groups(-OH,-F,-H)onto their skeletons,thereby modulating their characteristic charge separation and transport as well as their wettability,and systematically studied their photocatalytic H2O2 production performance in O2-saturated water under visible-light irradiation.Remarkably,the synthesized hydrophilic BTT-BD-OH-COF demonstrates the highest H2O2 production rate of 6105μmol g-1 h-1 in the absence of any sacrificial agent in pure water,attributed to its extended light absorption range,improved hydrophilicity,and enhanced photo-induced charge separation and transport efficiency.Combined experimental results and the density functional theory calculations elucidate the reaction mechanism,revealing the overall H2O2 photosynthesis via both oxygen reduction reaction and water oxidation reaction dual pathways.This study demonstrates that functional-group-mediated linker engineering is a powerful approach for significantly enhancing the efficiency of COF-based photocatalysts. 展开更多
关键词 Covalent organic frameworks Photocatalysis Hydrogen peroxide Linker engineering Benzotrithiophene
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Synergistic Ligand Engineering Suppresses Dye Aggregation Quenching and Photobleaching in Lanthanide Upconversion Nanoparticles 认领 引用
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作者 Shiqi Yu Datao Tu +8 位作者 Fei Zhao Fei Du Yun Xing Qingyan Liu Xiaoying Shang Renfu Li Zhi Xie Qian Liu Xueyuan Chen 《Aggregate》 EI CAS CSCD 2026年第4期220-228,共9页
Near-infrared cyanine dyes are widely employed for sensitizing lanthanide upconversion luminescence(UCL),but generally suffer from aggregation-caused quenching(ACQ)and photobleaching.Herein,we report a ligand engineer... Near-infrared cyanine dyes are widely employed for sensitizing lanthanide upconversion luminescence(UCL),but generally suffer from aggregation-caused quenching(ACQ)and photobleaching.Herein,we report a ligand engineering strategy utilizing pyridine-2-carboxylic acid(2PA)to competitively modify with cyanine dyes(e.g.,IR808)on the lanthanide-doped nanoparticles(e.g.,Cs2NaYbF6:Er,Nd).Specifically,2PA suppresses ACQ of dye via physical isolation,passivates surface defects to reduce lanthanide dopants quenching,and actively quenches singlet oxygen to enhance the photostability of the sensitized system.This synergy ultimately enhances the dye-sensitized lanthanide UCL by over one order of magnitude and shows superior photostability under continuous stimulation.Remarkably,this strategy shows universality across multiple dye-sensitized systems and demonstrates UCL enhancement and photostability improvement at the single-particle level upon high-power excitation.This work overcomes the fundamental bottlenecks in dye-sensitized lanthanide systems,offering a facile strategy for designing high-performance UCL nanoplatforms for versatile applications. 展开更多
关键词 dye sensitization lanthanide ions ligand engineering nanoparticle upconversion luminescence
Theoretical model for predicting deformation of pipe curtain support structure in underground engineering 认领 引用
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作者 Qian BAI Wen ZHAO +4 位作者 Pengpeng NI Jialong LI Pengjiao JIA Xiang LIU Tianliang LI 《ENGINEERING Structure and Civil Engineering》 SCIE EI CAS CSCD 2026年第1期246-261,共16页
Pipe curtains are widely employed in underground engineering as support structures to control stratum deformation during excavation.However,a comprehensive theoretical model for accurately predicting pipe curtain defo... Pipe curtains are widely employed in underground engineering as support structures to control stratum deformation during excavation.However,a comprehensive theoretical model for accurately predicting pipe curtain deformation remains lacking.This study establishes a deformation prediction model for pipe curtains based on the smalldeflection elastic plate theory,incorporating the actual stress characteristics of pipe curtains and the effects of overlying loads.The calculation method for the bending stiffness of pipe curtains under various arrangements is derived.Using in situ monitoring data from the Pinganli Station and the Shifu Station,the model’s effectiveness is validated.Furthermore,the influence of key parameters on pipe curtain deformation under different arrangements is systematically analyzed.The results show that the proposed calculation methods achieve satisfactory accuracy for both transverse and longitudinal arrangements,with average errors of 0.9%and 19.8%,respectively,making them suitable for practical engineering applications.In addition,the transverse arrangement effectively reduces the deformation of pipe curtains induced by excavation.Among all factors,the excavation span exerts the most significant influence on pipe curtain deformation.Specifically,the maximum deformation decreases exponentially with increasing steel pipe diameter,decreases linearly with the stiffness of the grouting body between pipes,and increases exponentially with the excavation span. 展开更多
关键词 underground engineering pipe curtain deformation excavation calculation model sensitivity analysis
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Piezoelectric scaffold for tissue engineering:material,structure,fabrication and function 认领 引用
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作者 Jiye Jia Junwei Shen +3 位作者 Feng Yang Jing Zhang Cijun Shuai Pei Feng 《International Journal of Extreme Manufacturing》 SCIE EI CAS CSCD 2026年第2期451-490,共40页
The scaffold for tissue engineering not only requires good biocompatibility,mechanical properties,and appropriate structure,but also should actively participate in biophysical and biochemical processes to accelerate t... The scaffold for tissue engineering not only requires good biocompatibility,mechanical properties,and appropriate structure,but also should actively participate in biophysical and biochemical processes to accelerate tissue repair.A piezoelectric scaffold can generate electrical activity when deformed,which constructs an electrochemical microenvironment for inducing cell signaling pathways and facilitating tissue regeneration,attracting extensive attention in tissue engineering.Herein,piezoelectric materials used in tissue engineering,including piezoelectric ceramics,synthetic piezoelectric polymers,and natural biological piezoelectric materials are systematically summarized,and their advantages and limitations are analyzed.As for the piezoelectric scaffold,the piezoelectric properties mainly stem from the asymmetric crystal structure of materials and the directional arrangement of internal dipoles,which is highly dependent on the fabrication and post-treatment strategies.Therefore,the fabrication techniques of piezoelectric scaffold are detailly introduced,covering both traditional fabrication techniques and additive manufacturing techniques.Besides,rational structural design of the piezoelectric scaffold can alter strain transmission pathways and charge distribution,or add new operational modes to regulate piezoelectric properties.Thereby,the piezoelectric metamaterials,microanostructures,porous structures,heterogeneous structures,and biomimetic structures are comprehensively summarized.Additionally,the functions of piezoelectric scaffold for tissue engineering application in terms of bone regeneration,neural regeneration,antibacterial activity,and intelligent sensing are reviewed.Finally,the challenges and future research directions of the piezoelectric scaffold are discussed. 展开更多
关键词 piezoelectric scaffold fabrication techniques structural design piezoelectric properties tissue engineering
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