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An interpretable attention-guided generative adversarial network framework with dual-domain learning for multi-condition constrained sedimentary facies modeling 认领 引用 被引量：2
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作者 Lei Liu Wei Li +7 位作者 Jian Gao Da-Li Yue De-Gang Wu Wu-Rong Wang Jin Lin Zhi-Bo Li Qian Zhong Jia-Gen Hou 《Petroleum Science》 SCIE EI CAS CSCD 2026年第4期1754-1772,共19页
Sedimentary facies modeling is a critical approach for understanding geological phenomena,yet the strong heterogeneity of reservoir systems poses a serious challenge for their refined characterization.In this study,we... Sedimentary facies modeling is a critical approach for understanding geological phenomena,yet the strong heterogeneity of reservoir systems poses a serious challenge for their refined characterization.In this study,we innovatively propose an interpretable attention-guided generative adversarial network framework with dual-domain learning,which achieves precise sedimentary facies modeling under the constraints of well facies and soft probability data.Specifically,we first effectively extract and preserve prior information of sedimentary facies models from both spatial and frequency domain perspectives.Then,during simulation,to enhance the capability of the network model for finely characterizing complex heterogeneous models,cross-spatial attention mechanisms are designed to effectively capture short-range and long-range dependencies between multi-scale pattern features.Additionally,through systematic feature map visualization analysis,we elucidate the processes of conditional fitting and complex sedimentary facies model reconstruction,intuitively demonstrating the functional mechanisms of each module.Finally,systematic experiments are conducted on multiple datasets to validate the effectiveness of the proposed method.The results demonstrate that the generated sedimentary facies models exhibit high consistency with training datasets in terms of visual realism and statistical indicators.Quantitative comparisons reveal remarkable performance of the method,achieving low Wasserstein distance(0.09),Kernel Inception Distance(0.0017)and Kernel Maximum Mean Discrepancy(0.21).These findings further confirm the high realism of the generated realizations regarding pattern features.This study offers a reliable and practical method for geological reservoir modeling,thereby advancing quantitative,precise geological research with broad application prospects. 展开更多
关键词 Sedimentary facies models Attention-guided generative adversarial network Interpretable framework Sedimentary patterns Multi-condition modeling
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The Agentic-AI Core:An AI-Empowered,Mission-Oriented Core Network for Next-Generation Mobile Telecommunications 认领 引用 被引量：1
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作者 Xu Li Weisen Shi +3 位作者 Hang Zhang Chenghui Peng Shaoyun Wu Wen Tong 《Engineering》 SCIE EI CSCD 2026年第1期104-119,共16页
While the complexity of fifth-generation wireless networks is being widely commented upon,there is great anticipation for the arrival of the sixth generation(6G),with its enriched capabilities and features.It can easi... While the complexity of fifth-generation wireless networks is being widely commented upon,there is great anticipation for the arrival of the sixth generation(6G),with its enriched capabilities and features.It can easily be imagined that,without proper design,the enrichment of 6G will further increase system complexity.To address this issue,we propose the Agentic-AI Core(A-Core),an artificial intelligence(AI)-empowered,mission-oriented core network architecture for next-generation mobile telecommunications.In A-Core,network capabilities can be added and updated on the fly and further programmed into missions for enabling and offering diverse services to customers.These missions are created and executed by autonomous network agents according to the customer's intent,which may be expressed in natural language.The agents resolve intents from customers into workflows of network capabilities by leveraging a large-scale network AI model and follow the workflows to execute the mission.As an open,agile system architecture,A-Core holds promise for accelerating innovation and greatly reducing standard release times.The advantages of A-Core are demonstrated through two use cases. 展开更多
关键词 Sixth generation Core network Generative artificial intelligence Artificial intelligence agent
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Solvent-regulated mesoporous terbium-perylenetetracarboxylate metal organic framework with enhanced electrochemiluminescence for ultrasensitive cTnⅠbioanalysis 认领 引用 被引量：1
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作者 Li Song Shuchun Bu +4 位作者 Yilan Ding Pu Zhang Ya-Qin Chai Yingzi Fu Ruo Yuan 《Chinese Chemical Letters》 SCIE CAS CSCD 2026年第5期548-552,共5页
The typical organic perylenetetracarboxylate(PTC)luminophore suffers from limited bio-application due to its aggregation-caused quenching(ACQ)induced undesirable electrochemiluminescence(ECL)efficiency in aqueous solu... The typical organic perylenetetracarboxylate(PTC)luminophore suffers from limited bio-application due to its aggregation-caused quenching(ACQ)induced undesirable electrochemiluminescence(ECL)efficiency in aqueous solution.Herein,the ECL emission of PTC was highly improved through the ingenious coordination of PTC(ligand)with Tb3+(metal ion)to prepare the Tb-PTC metal-organic framework(TbPTC MOF),which prevented theπ-πstacking and the aggregation of PTC molecules in a homogeneous phase.Moreover,we found that the ECL emission of Tb-PTC MOF was further enhanced by regulating its morphology,pore size and electron transfer ability using different solvents during its synthesis procedure.Notably,under the mixture of DMF,Et OH,and H2O(v/v/v,1:1:1),a mesoporous Tb-PTC MOF exhibited an outstanding ECL intensity,which may be attributed to two reasons.Firstly,the mesopore and rough surface of Tb-PTC MOF(luminophore)provided abundant active sites and enlarged contact surfaces for S2O82–(coreactant).Secondly,Tb-PTC MOF with higher electron transfer ability could accelerate electron/hole recombination to enhance its ECL emission.Additionally,Tb-PTC MOF with excellent ECL performance was applied as a luminophore to fabricate an ultrasensitive ECL immunosensor for cardiac troponinⅠ(cTnⅠ)detection,related to acute myocardial infarction.The constructed ECL immunosensor exhibited a satisfactory linear range(1 fg/m L-20 ng/mL)and a low detection limit of 0.48 fg/m L.This study provides a new trend for the preparation of PTC-based nanomaterials with highly efficient ECL performance,broadening the scope for sensitive immunoassay in disease diagnosis. 展开更多
关键词 Electrochemiluminescence Metal organic framework Coordination-enhanced ECL Solvent regulation Cardiac troponin I
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Dual-Signal Colorimetric/Fluorescent Detection of Vibrio parahaemolyticus in Seafood Using a Multifunctional Aptamer-Conjugated Magnetic Covalent Organic Framework-CuO/Au Nanozyme 认领 引用 被引量：1
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作者 SUN Di YANG Xuewen +6 位作者 WANG Hui LIN Hongyong HE Xiaoxia HUO Zhenting LIU Yu YU Zhongjie JIANG Wei 《食品科学》 EI CAS CSCD 北大核心 2026年第6期23-40,共18页
In this study,a multifunctional aptamer-conjugated magnetic covalent organic framework(COF)-CuO/Au nanozyme(MCOF-CuO/Au@apt)was developed as a“three-in-one”platform for dual-signal colorimetric and fluorescent detec... In this study,a multifunctional aptamer-conjugated magnetic covalent organic framework(COF)-CuO/Au nanozyme(MCOF-CuO/Au@apt)was developed as a“three-in-one”platform for dual-signal colorimetric and fluorescent detection of Vibrio parahaemolyticus.The nanozyme integrated magnetic separation,peroxidase-like catalytic activity,and specific target recognition through an aptamer-based strategy.Upon binding to V.parahaemolyticus,the catalytic oxidation of tetra-aminophenylethylene(TPE-4A)by the nanozyme was selectively inhibited,resulting in distinct colorimetric and fluorescent signals that significantly enhanced the detection accuracy and reliability.The proposed method exhibited high sensitivity,with limits of detection(LOD)of 21 and 7 CFU/mL for the colorimetric and fluorescent assays,respectively.The performance of this method was validated using real seafood samples,including Penaeus vannamei,Mytilus coruscus,and Crassostrea gigas,which showed high recovery rates(101.11%-107.30%)and excellent reproducibility.The system also demonstrated strong specificity and accuracy under various conditions,confirming its robustness and practical applicability.Collectively,this innovative platform presents a promising solution for the rapid,versatile,and sensitive detection of V.parahaemolyticus in seafood,with considerable potential to advance food safety diagnosis and on-site monitoring. 展开更多
关键词 Vibrio parahaemolyticus dual-signal detection aptamer-based nanozyme magnetic covalent organic framework seafood safety
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Correction:Confining Li+Solvation in Core-Shell Metal-Organic Frameworks for Stable Lithium Metal Batteries at 100℃ 认领 引用
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作者 Minh Hai Nguyen Jeongmin Shin +3 位作者 Mee‑Ree Kim Quan Van Nguyen Jin-Hyeok Cha Sangbaek Park 《Nano-Micro Letters》 SCIE EI CAS CSCD 2026年第8期659-662,共4页
Correction to:Nano-Micro Lett.(2026)18:135 http://gffzzd3cc09b8251d45dfsooo660uuk50k6op9.ffgz.tsg.suse.edu.cn/10.1007/s40820-025-01988-7 Following publication of the original article[1],the authors noticed that Fig.2 was published with an incorrect panel order,which d... Correction to:Nano-Micro Lett.(2026)18:135 http://gffzzd3cc09b8251d45dfsooo660uuk50k6op9.ffgz.tsg.suse.edu.cn/10.1007/s40820-025-01988-7 Following publication of the original article[1],the authors noticed that Fig.2 was published with an incorrect panel order,which does not reflect the final intended version approved during the proof stage.As a result,the panel sequence in Fig.2 is inconsistent with the figure caption and manuscript text.This issue is limited strictly to the order and labeling of the figure panels.The experimental data,scientific interpretation,results,and conclusions of the paper remain completely unchanged. 展开更多
关键词 temperature lithium metal batteries solvation metal organic frameworks core shell structures stability
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Manufacturing novel Fe-based nanocrystalline powders with high saturation magnetization and low core loss by gas atomization 认领 引用
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作者 Yanqiu Li Ling Zhang +4 位作者 Xingjie Jia Yaqiang Dong Aina He Jiawei Li Baogen Shen 《Journal of Materials Science & Technology》 SCIE EI CAS CSCD 2026年第1期182-189,共8页
Fe-based nanocrystalline powders are ideal soft magnetic materials for matching the wide bandgap semiconductors.Previously developed Fe-based nanocrystalline alloys are difficult to produce high-quality precursor powd... Fe-based nanocrystalline powders are ideal soft magnetic materials for matching the wide bandgap semiconductors.Previously developed Fe-based nanocrystalline alloys are difficult to produce high-quality precursor powder by gas atomization due to their poor amorphous forming ability,and their following nanocrystallizations also require high temperatures or heating rates.In present work,we invented novel high-performance Fe-based nanocrystalline powders that can be directly manufactured by gas atomization without annealing.The as-atomized Fe73.3Si12B13Cu1.7nanocrystalline powders exhibit fine α-Fe(Si)crystals with an average size of 15.1 nm and high saturation magnetization(Ms)of 156.2 emu/g.The Fe73.3Si12B13Cu1.7soft magnetic powder cores annealed at 480℃for 60 min process high effective permeability of 35.9 and low core losses(50 mT/100 kHz)of 310.1 mW/cm3.These outstanding magnetic properties and good processability make the developed Fe73.3Si12B13Cu1.7nanocrystalline powders highly promising for high-performance inductors and transformers. 展开更多
关键词 Fe-based nanocrystalline alloys High Cu content Gas atomization Saturation magnetization Core loss
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Thickness-controllable synthesis of metal-organic framework based hollow nanofiowers with magnetic core via liquid phase epitaxy for phosphopeptides enrichment 认领 引用 被引量：1
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作者 Ning Zhang Mengjie Qin +6 位作者 Jiawen Zhu Xuejing Lou Xiao Tian Wende Ma Youmei Wang Minghua Lu Zongwei Cai 《Chinese Chemical Letters》 SCIE CAS CSCD 2025年第4期622-626,共5页
A thickness-controllable method for preparing metal-organic framework hollow nanofiowers on magnetic cores(Fe3O4@MOFs HFs)was demonstrated for the first time.The petal of magnetic core with hollow nanofiower str... A thickness-controllable method for preparing metal-organic framework hollow nanofiowers on magnetic cores(Fe3O4@MOFs HFs)was demonstrated for the first time.The petal of magnetic core with hollow nanofiower structure served as medium for assembling Ui O-66-NH2shell with different thickness.To further improve its performance,Zr4+was immobilized on the surface of Fe3O4@Ui O-66-NH2.Compared with conventional Fe3O4@Ui O-66-NH2-Zr4+nanospheres,the Fe3O4@Ui O-66-NH2-Zr4+HFs showed increased enrichment performance for phosphopeptides.The Fe3O4@Ui O-66-NH2-Zr4+HFs served as an attractive restricted-access adsorption material exhibited good selectivity(mβ-casein:mBSA=1:1000),high sensitivity(1.0 fmol)and excellent size-exclusion effect(m)((β-casein digests):mBSA=1:200).Furthermore,the Fe3O4@Ui O-66-NH2-Zr4+HFs was successfully applied to the specific capture of ultratrace phosphopeptide from complex biological samples,revealing the great potential for the identification and analysis of trace phosphopeptides in clinical analysis.This work can be easily extended to the fabrication of diverse mag-MOF HFs with multifunctional and easy to post-modify properties,and open up a new avenue for the design and construction of new MOFs material. 展开更多
关键词 Metal-organic framework Nanofiower Phosphopeptide Serum Saliva
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Built-in control of donor-acceptor units within covalent organic frameworks for enhanced Li-ion storage kinetics 认领 引用
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作者 Haojing Liu Fanyu Meng +7 位作者 Xiaoxiao Dong Han Wang Xingwang Lan Mingxu Liu Yongcheng Jin Chenghui Xia Qiang Xu Chun-Chao Hou 《Journal of Energy Chemistry》 SCIE EI CAS CSCD 2026年第8期743-752,I0017,共10页
Lithium-ion batteries(LIBs)with high energy and power densities are widely utilized in diverse applications,ranging from portable electronic devices to electric vehicles.Compared with conventional inorganic electrode ... Lithium-ion batteries(LIBs)with high energy and power densities are widely utilized in diverse applications,ranging from portable electronic devices to electric vehicles.Compared with conventional inorganic electrode materials constrained by resource scarcity and limited energy density,covalent organic frameworks(COFs)emerge as promising candidates for next-generation lithium-ion battery electrodes.Herein,as a proof-of-concept,a donor-acceptor(D-A)engineering strategy is implemented in a series of benzothiazole-based COF-n(n=0–3)through the stepwise introduction of hydroxyl-substituted aldehyde linkers.The incorporated hydroxyl groups undergo keto-enol tautomerism,generating in situ carbonyl(C=O)units as acceptor sites and enabling built-in modulation of the D-A interactions.Theoretical and experimental results confirm that dense incorporation of multi-carbonyl ligands as strong acceptors effectively strengthens D-A interactions.This optimized structural characteristic endows the engineered COF frameworks with extended hexagonal mesoporous networks,which greatly accelerate ion diffusion(DLi=10-10–10-9cm2s-1).Meanwhile,the narrowed band gap(Eg=0.47 eV)of COF further improves intrinsic electronic conductivity.Benefiting from these,the optimized COF-3 anode displays significantly boosted rate performance and enhanced cycling stability(retaining a capacity of 217 m A h g-1 at 0.2 A g-1after 500 cycles,and 151 mA h g-1at 0.5 A g-1after 1000 cycles).This work offers fundamental insights into the design and operational mechanism of D-A structured COF electrodes for Li-ion storage. 展开更多
关键词 Covalent-organic frameworks Li-ion batteries Donor-acceptor Electron transport
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基于ASP.NET Core MVC框架的智慧检查预约系统的构建与应用 认领 引用
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作者 蒋琳 张中天 +4 位作者 周天平 殷鹏宇 陈照丹 杨依叶 陈江 《中国医学装备》 2026年第4期96-102,共7页
目的:设计基于ASP.NET Core MVC框架与大语言模型的智慧检查预约系统,通过智能化技术重构医疗资源调度范式,实现医学技术检查资源的最优配置与患者就医体验的显著改善。方法:智慧检查预约系统采用前后端分离架构实现业务解耦,结合依赖... 目的:设计基于ASP.NET Core MVC框架与大语言模型的智慧检查预约系统,通过智能化技术重构医疗资源调度范式,实现医学技术检查资源的最优配置与患者就医体验的显著改善。方法:智慧检查预约系统采用前后端分离架构实现业务解耦,结合依赖注入容器实现组件化开发,利用面向切面编程(AOP)处理日志、事务等横切关注点,集成大语言模型和可视化数据驾驶舱,实现医学技术检查需求与医疗资源的智能匹配与动态调度。选取北京安贞医院2023年8月至12月系统应用前采用传统预约模式采集的597000例检查预约记录,以及2024年8月至12月系统应用后采用智慧检查预约模式采集的624881例检查预约记录。记录智慧检查预约系统上线后每月运行情况,并比较两种预约模式下医院运营指标的差异性。结果:智慧检查预约模式下,预约率从62.60%提升至80.92%;改约率则从15%逐步降至11%。智慧检查预约模式的日均预约量显著高于传统预约模式,差异有统计学意义(t=34.55,P<0.05),效应量Cohen's d=3.53;平均预约完成时间显著少于传统预约模式,差异有统计学意义(t=48.08,P<0.05),效应量Cohen's d=6.67;改约率显著低于传统预约模式(t=3.89,P<0.05),效应量Cohen's d=0.76。结论:智慧检查预约系统有效提升了医疗资源分配的合理性和科学性,为智慧医院检查预约服务提供了技术支撑。 展开更多
关键词 ASP.NET Core MVC框架 大语言模型 智慧检查预约系统 医疗资源分配
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Hydrogen migration induced magnetic phase transition in two-dimensional Fe-porphyrinoid metal-organic frameworks 认领 引用
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作者 Chao Jia Min Ren +1 位作者 Yingdi Jin Xingxing Li 《Chinese Journal of Structural Chemistry》 SCIE CAS CSCD 2026年第2期79-85,共7页
The control of magnetic state is crucial for spintronic applications but remains a significant challenge.Tradi-tionally,controlling magnetic state relies on physical approaches,such as applying external magnetic field... The control of magnetic state is crucial for spintronic applications but remains a significant challenge.Tradi-tionally,controlling magnetic state relies on physical approaches,such as applying external magnetic fields or utilizing spin-orbit coupling.In our previous work,we proposed a novel chemical approach to manipulate the magnetic state of a system through lactim-lactam tautomerization.Here,by first principles calculations,we extend the type of tautomerization to intramolecular hydrogen migration,and reveal that hydrogen migration can modulate magnetic coupling and lead to distinct magnetic configurations in two-dimensional(2D)metal-organic frameworks(MOFs)composed of diradical porphyrinoid and Fe.The migration of hydrogen atoms within porphyrinoid results in four isometric MOFs with notable changes in spin density distribution on organic linkers,which subsequently alters the magnetic coupling between the metal node and organic linkers,leading to ferromagnetic-ferrimagnetic(FM-FiM)transition in the framework.The magnetic coupling strength also changes significantly,with the Curie temperature enhanced from 5.2 to 100.1 K.Furthermore,accompanied with the magnetic transition,the MOFs experience an electronic transition from normal half semiconductors(with band gaps of 0.11 and 0.03 eV),where the valence band(VB)and conduction band(CB)share the same spin channel,to bipolar magnetic semiconductors(with band gaps of 0.06 and 0.13 eV),where the VB and CB become fully spin-polarized in opposite directions. 展开更多
关键词 Hydrogen migration Metal-organic frameworks Diradical Porphyrinoid Magnetic phase transition
Managing Interpenetration in 3D Covalent Organic Frameworks with Spatial-aromatic Building Blocks 认领 引用
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作者 Zhen-Yang Hu Fu-Xiang Wen +1 位作者 Xiao-Yi Xu Ning Huang 《Chinese Journal of Polymer Science》 SCIE EI CAS CSCD 2026年第8期2395-2402,I0006,共8页
The regulation of interpenetration in three-dimensional covalent organic frameworks(3D COFs)poses a fundamental challenge while offering a powerful means to engineer their pore environments.In this study,we demonstrat... The regulation of interpenetration in three-dimensional covalent organic frameworks(3D COFs)poses a fundamental challenge while offering a powerful means to engineer their pore environments.In this study,we demonstrate that the geometry and electronic character of linear linkers are decisive for achieving such control.Using a rigid,sterically extended 6-connected trigonal prismatic amine building block,we synthesized an isoreticular pair of acs-topology 3D COFs to compare the influence of a fully aromatic linker.The resulting frameworks,tris(trimethylbis-4-aminophenylphenyl)benzene(TTAPB)-terephthalaldehyde(TPA)-COF and TTAPB-C,C-diformyl-p-carborane(DFCB)-COF,exhibited dramatically different degrees of interpenetration,6-fold and 2-fold,respectively.This contrast originates directly from the linker core;the planarπ-conjugated TPA promotes dense,multifold interpenetration,whereas the globular,electron-deficient carborane introduces steric and electronic constraints that strongly limit network replication.Consequently,the difference in the interpenetration dictates the distinct porosity and gas adsorption behavior.By elucidating the structure-determining roles of monomer geometry and electronic properties,this work establishes a rational design principle for programming interpenetration and porosity in 3D extended frameworks. 展开更多
关键词 Covalent organic frameworks Porous polymer acs Topology Gas adsorption
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Dimensional engineering modulation of electron-spin synergy for conductive metal-organic frameworks to boost electromagnetic wave absorption 认领 引用
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作者 Haowen Xing Haichuan Cheng +2 位作者 Zhen Huang Jianfeng Wu Baoliang Zhang 《Journal of Energy Chemistry》 SCIE EI CAS CSCD 2026年第7期22-34,I0003,共13页
Conductive metal-organic frameworks(cMOFs) demonstrate remarkable advantages in electromagnetic wave(EMW) absorption, attributed to their designable topological architectures and tailorable conjugated networks. Howeve... Conductive metal-organic frameworks(cMOFs) demonstrate remarkable advantages in electromagnetic wave(EMW) absorption, attributed to their designable topological architectures and tailorable conjugated networks. However, the preferential orientation and aligned stacking of low-dimensional systems(1D and 2D) tend to augment EMW reflection and restrict scattering, rendering the construction of efficient multiple loss channels unfeasible, resulting in insufficient overall energy dissipation. This study proposes a method that integrates density functional theory(DFT)-guided design with ordered liquid-phase assembly regulation, successfully fabricating a series of cMOFs with both efficient charge transport and excellent spin polarization, aimed at intensifying energy attenuation with scale-coordinated tuning.The volumetric framework of the Fe-DHBQ-3D(DHBQ represents: 2,5-dihydroxy-1,4-benzoquinone)exhibits enhanced charge transport efficiency and amplified interfacial polarization through a percolating conjugated network, which provides structural support for rapid charge separation and the formation of stable interfacial dipoles. Its coordination environment constrains metal ion spin arrangement to further boost magnetic dipole interactions that significantly reinforce the synergistic ordering and orientational regularity of the spin system. Prominently, its spatial interconnected network establishes full-domain connectivity that overcomes inherent fragmentation and local isolation in directionally extended arrangements, promoting the collaborative unification of the confined space and conjugated scaffold.With the transcending expansion of hierarchies, the effective absorption bandwidth(EAB) increased 5orders of magnitude, and reflection loss(RL) improved significantly from-1.79 to-30.54 dB. This research not only reveals the structure-dominated energy management mechanism of cMOFs but also provides a general strategy for the efficient design and functional customization of EMW absorption materials. 展开更多
关键词 Conductive metal‑organic frameworks Electromagnetic energy Density functional theory Liquid‑phase assembly Dimensional regulation
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Ligand-directed construction of cobalt-oxo cluster-based organic frameworks:Structural modulation,semiconductor,and antiferromagnetic properties 认领 引用
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作者 SHI Jinlian LIU Xiaoru XU Zhongxuan 《无机化学学报》 SCIE CAS CSCD 北大核心 2026年第1期45-54,共10页
Under hydrothermal and solvothermal conditions,two novel cobalt-based complexes,{[Co2(CIA)(OH)(1,4-dtb)]·3.2H2O}n(HU23)and{[Co2(CIA)(OH)(1,4-dib)]·3.5H2O·DMF}n(HU24),were successfully construct... Under hydrothermal and solvothermal conditions,two novel cobalt-based complexes,{[Co2(CIA)(OH)(1,4-dtb)]·3.2H2O}n(HU23)and{[Co2(CIA)(OH)(1,4-dib)]·3.5H2O·DMF}n(HU24),were successfully constructed by coordinatively assembling the semi-rigid multidentate ligand 5-(1-carboxyethoxy)isophthalic acid(H₃CIA)with the Nheterocyclic ligands 1,4-di(4H-1,2,4-triazol-4-yl)benzene(1,4-dtb)and 1,4-di(1H-imidazol-1-yl)benzene(1,4-dib),respectively,around Co2+ions.Single-crystal X-ray diffraction analysis revealed that in both complexes HU23 and HU24,the CIA3-anions adopt aκ7-coordination mode,bridging six Co2+ions via their five carboxylate oxygen atoms and one ether oxygen atom.This linkage forms tetranuclear[Co4(μ3-OH)2]6+units.These Co-oxo cluster units were interconnected by CIA3-anions to assemble into 2D kgd-type structures featuring a 3,6-connected topology.The 2D layers were further connected by 1,4-dtb and 1,4-dib,resulting in 3D pillar-layered frameworks for HU23 and HU24.Notably,despite the similar configurations of 1,4-dtb and 1,4-dib,differences in their coordination spatial orientations lead to topological divergence in the 3D frameworks of HU23 and HU24.Topological analysis indicates that the frameworks of HU23 and HU24 can be simplified into a 3,10-connected net(point symbol:(410.63.82)(43)2)and a 3,8-connected tfz-d net(point symbol:(43)2((46.618.84))),respectively.This structural differentiation confirms the precise regulatory role of ligands on the topology of metal-organic frameworks.Moreover,the ultraviolet-visible absorption spectra confirmed that HU23 and HU24 have strong absorption capabilities for ultraviolet and visible light.According to the Kubelka-Munk method,their bandwidths were 2.15 and 2.08 eV,respectively,which are consistent with those of typical semiconductor materials.Variable-temperature magnetic susceptibility measurements(2-300 K)revealed significant antiferromagnetic coupling in both complexes,with their effective magnetic moments decreasing markedly as the temperature lowered.CCDC:2457554,HU23;2457553,HU24. 展开更多
关键词 semi-rigid carboxylic acid ligands three-dimensional framework tetranuclear cobalt-oxo cluster semiconductor material antiferromagnetic magnetism
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Miscibility enhancing agents for improving oil recovery of CO2 flooding in low-permeability reservoirs:A study based on core displacement and nuclear magnetic resonance 认领 引用
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作者 Chuan-Jie Ren Yong-Liang Yang +1 位作者 Hong-Jun Zhang Dao-Yi Zhu 《Petroleum Science》 SCIE EI CAS CSCD 2026年第6期3710-3720,共11页
CO2 miscible flooding is a key method to improve oil recovery.However,under most petroleum reservoir conditions,CO2 cannot achieve miscibility with crude oil.Therefore,reducing the minimum miscible pressure(MMP)... CO2 miscible flooding is a key method to improve oil recovery.However,under most petroleum reservoir conditions,CO2 cannot achieve miscibility with crude oil.Therefore,reducing the minimum miscible pressure(MMP)between CO2 and crude oil has become a critical objective.This study investigated MMP reduction and CO2 displacement efficiency of miscibility-enhancing agent(MEA)using low-permeability artificial cores and reservoir oil samples from the Xinjiang Oilfield.A core displacement method was established to determine the MMP and,in parallel,to screen four candidate MEAs.Nuclear magnetic resonance(NMR)technology was employed to probe the pore-scale mechanisms by which MEAs reduce the MMP between crude oil and CO2.Results showed that,before adding an MEA,the baseline MMP of CO2-crude oil system was 21.38 MPa.Among the four MEAs,tributyl citrate(TC)exhibited the strongest effect,lowering the MMP by 1.61 MPa.TC concurrently improved CO2 conformance efficiency in both large pores and small pores,improving oil recovery during CO2flooding.These results demonstrated that TC-enabled miscibility tuning offers a practical pathway to reduce MMP and improve CO2 conformance in low-permeability reservoirs.It provided a foundation for pilot-scale conformance control implementation in the Xinjiang Oilfield and analogous CO2 flooding reservoirs. 展开更多
关键词 CO2miscible flooding Miscibility enhancing agent(MEA) Core displacement Nuclear magnetic resonance(NMR) Minimum miscible pressure(MMP)
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Confining Li+Solvation in Core-Shell Metal-Organic Frameworks for Stable Lithium Metal Batteries at 100℃ 认领 引用 被引量：2
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作者 Minh Hai Nguyen Jeongmin Shin +3 位作者 Mee-Ree Kim Quan Van Nguyen JinHyeok Cha Sangbaek Park 《Nano-Micro Letters》 SCIE EI CAS CSCD 2026年第4期718-734,共17页
The practical deployment of lithium metal batteries remains severely constrained,especially under elevated temperatures.Although metal-organic frameworks(MOFs)improve the thermal stability of liquid electrolytes by ca... The practical deployment of lithium metal batteries remains severely constrained,especially under elevated temperatures.Although metal-organic frameworks(MOFs)improve the thermal stability of liquid electrolytes by capturing them in well-ordered sub-nanopores,interparticle voids between MOF particles readily absorb liquid electrolyte,obscuring our understanding of the intrinsic role of nanopores in directing Li+transport.To address this challenge,we introduce a one-dimensional(1D)MOF model architecture that eliminates interparticle effects and enables direct observation of Li+solvation and de-solvation dynamics.Comparative studies of 1D HKUST-1 and ZIF-8 uncover distinct transport behaviors,supported by both experimental measurements and neural network potential-based molecular dynamics simulations.Building on these insights,we construct a hierarchical core-shell MOF architecture by integrating ZIF-8(core)and HKUST-1(shell)onto a hybrid fiber scaffold.This design harnesses the complementary strengths of both MOFs to achieve continuous ion pathways,directional Li+conduction,and improved thermal and electrochemical resilience. 展开更多
关键词 Quasi-solid-state electrolyte Metal-organic frameworks Li metal batteries Thermal stability Lithium-ion solvation/de-solvation
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基于NET core的水稻生产机械专业术语双料语言库系统研究 认领 引用 被引量：3
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作者 李洁 《北方水稻》 CAS 2025年第4期159-164,共6页
水稻生产机械化技术正在逐渐走向国际化,而一个支持多语言的语言库系统可以帮助技术更好地传播和应用到不同国家或地区。为实现上述目的,设计基于NET core的水稻生产机械专业术语双料语言库系统。在收集到的水稻生产机械专业术语数据中... 水稻生产机械化技术正在逐渐走向国际化,而一个支持多语言的语言库系统可以帮助技术更好地传播和应用到不同国家或地区。为实现上述目的,设计基于NET core的水稻生产机械专业术语双料语言库系统。在收集到的水稻生产机械专业术语数据中,抽取目标双料语言信息,进而确定其功能性与非功能性需求,实现对水稻生产机械专业术语双料语言信息的传输需求分析。以NET core框架为基础,设计语言库更新模块与整合统计模块,完善水稻生产机械专业术语双料语言库系统的具体设计方法。实验结果表明,基于NET core开发的语言库系统具有更大的存储空间,能够快速实现中英文信息的切换与对照,方便水稻生产机械化技术的国际交流与合作。 展开更多
关键词 NET core框架 水稻生产机械 专业术语 双料语言库 传输需求
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Construction of iron manganese metal-organic framework-derived manganese ferrite/carbon-modified graphene composites toward broadband and efficient electromagnetic dissipation 认领 引用 被引量：6
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作者 Baohua Liu Shuai Liu +1 位作者 Zaigang Luo Ruiwen Shu 《International Journal of Minerals,Metallurgy and Materials》 SCIE EI CAS CSCD 2025年第3期546-555,共10页
The preparation of carbon-based electromagnetic wave(EMW)absorbers possessing thin matching thickness,wide absorption bandwidth,strong absorption intensity,and low filling ratio remains a huge challenge.Metal-organic ... The preparation of carbon-based electromagnetic wave(EMW)absorbers possessing thin matching thickness,wide absorption bandwidth,strong absorption intensity,and low filling ratio remains a huge challenge.Metal-organic frameworks(MOFs)are ideal self-sacrificing templates for the construction of carbon-based EMW absorbers.In this work,bimetallic FeMn-MOF-derived MnFe2O4/C/graphene composites were fabricated via a two-step route of solvothermal reaction and the following pyrolysis treatment.The results re-veal the evolution of the microscopic morphology of carbon skeletons from loofah-like to octahedral and then to polyhedron and pomegran-ate after the adjustment of the Fe3+to Mn2+molar ratio.Furthermore,at the Fe3+to Mn2+molar ratio of 2:1,the obtained MnFe2O4/C/graphene composite exhibited the highest EMW absorption capacity.Specifically,a minimum reflection loss of-72.7 dB and a max-imum effective absorption bandwidth of 5.1 GHz were achieved at a low filling ratio of 10wt%.In addition,the possible EMW absorp-tion mechanism of MnFe2O4/C/graphene composites was proposed.Therefore,the results of this work will contribute to the construction of broadband and efficient carbon-based EMW absorbers derived from MOFs. 展开更多
关键词 metal-organic frameworks graphene magnetic composites morphology regulation electromagnetic dissipation
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Enhancing dipole polarization loss in conjugated metal-organic frameworks via coordination symmetry breaking under electromagnetic field 认领 引用 被引量：6
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作者 Weize Wang Rong Liu +10 位作者 Jiaqi Tao Tinglei Yu Yijie Liu Lvtong Duan Zifu Zhang Zhihao He Shuang Chen Jintang Zhou Ping Chen Peijiang Liu Zhengjun Yao 《Advanced Powder Materials》 EI CAS CSCD 2025年第4期70-80,共11页
Modulating the dipole polarization loss in the single-atom region and establishing its direct relationship with the electromagnetic wave absorption(EWA)performance remain an unmet challenge.Here,a dual-ligand modulati... Modulating the dipole polarization loss in the single-atom region and establishing its direct relationship with the electromagnetic wave absorption(EWA)performance remain an unmet challenge.Here,a dual-ligand modulation strategy,i.e.,partially changing coordination atoms in the single-metal region(sMr),is introduced to effectively break the coordination symmetry of conjugated metal-organic frameworks(cMOFs),finally enhancing EWA property of cMOFs materials.Further,the asymmetrical sMr is experimentally found to elicit the dipole polarization loss,overcoming the handicaps of other electromagnetic wave loss mechanisms,which directly contribution to enhance EWA performance of this series of cMOFs.This strategy is further confirmed by replacing metal centers.Among studied series of cMOFs,Cu2.25/Co0.75(HHTP1.67HITP0.33)achieves excellent EWA performance with an effective absorption bandwidth of 5.00 GHz and a reflection loss of66.03 dB.We introduce a dual-ligand modulation strategy targeting single-metal regions within cMOFs here,aiming to achieve superior EWA performance through atomic-scale dipole polarization loss modulation.We hope our study can inspire more exploration to realize high-performance EWA materials. 展开更多
关键词 Asymmetric structure Single-metal region Dipole polarization loss Electromagnetic wave absorption materials Conjugated metal-organic frameworks
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Toward next-generation networks:A blockchain-based approach for core network architecture and roaming identity verification 认领 引用 被引量：1
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作者 Yi Gong Boyuan Yu +4 位作者 Lei Yang Fanke Meng Lei Liu Xinjue Hu Zhan Xu 《Digital Communications and Networks》 SCIE EI CSCD 2025年第2期326-336,共11页
With the evolution of next-generation communication networks,ensuring robust Core Network(CN)architecture and data security has become paramount.This paper addresses critical vulnerabilities in the architecture of CN ... With the evolution of next-generation communication networks,ensuring robust Core Network(CN)architecture and data security has become paramount.This paper addresses critical vulnerabilities in the architecture of CN and data security by proposing a novel framework based on blockchain technology that is specifically designed for communication networks.Traditional centralized network architectures are vulnerable to Distributed Denial of Service(DDoS)attacks,particularly in roaming scenarios where there is also a risk of private data leakage,which imposes significant operational demands.To address these issues,we introduce the Blockchain-Enhanced Core Network Architecture(BECNA)and the Secure Decentralized Identity Authentication Scheme(SDIDAS).The BECNA utilizes blockchain technology to decentralize data storage,enhancing network security,stability,and reliability by mitigating Single Points of Failure(SPoF).The SDIDAS utilizes Decentralized Identity(DID)technology to secure user identity data and streamline authentication in roaming scenarios,significantly reducing the risk of data breaches during cross-network transmissions.Our framework employs Ethereum,free5GC,Wireshark,and UERANSIM tools to create a robust,tamper-evident system model.A comprehensive security analysis confirms substantial improvements in user privacy and network security.Simulation results indicate that our approach enhances communication CNs security and reliability,while also ensuring data security. 展开更多
关键词 Blockchain Core network Privacy data protection Decentralized identity Roaming identity verification
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Synergistic removal of tetracycline in water with highly stable Lac immobilized on magnetic metal-organic framework 认领 引用 被引量：1
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作者 Linyu Shen Zhiquan An +3 位作者 Xiaoyu Jian Minjie Li Bihong Zhang Liang-Hong Guo 《Journal of Environmental Sciences》 SCIE EI CAS CSCD 2025年第8期536-549,共14页
The arbitrary discharge of tetracycline(TC)residuals has seriously influenced the ecosystem and human health.Laccase(Lac)-based biodegradation technology is considered a more effective way to remove TC due to its high... The arbitrary discharge of tetracycline(TC)residuals has seriously influenced the ecosystem and human health.Laccase(Lac)-based biodegradation technology is considered a more effective way to remove TC due to its high catalytic efficiency and less by-product.Nevertheless,free Lac suffers from poor stability,easy inactivation and difficult recovery,restricting its application.Immobilization of Lac is considered an efficient strategy for addressing these obstacles.In this study,a magnetic metal-organic framework of Fe3O4@SiO2@UiO-66-NH2(MMOF)was prepared and used as a carrier to immobilize Lac(Lac@MMOF)for TC degradation.Benefiting from the multiple binding sites,adsorption,and protection effect of MMOF,Lac@MMOF displayed a wider pH application range(2–7)and better thermal(15–85℃),repeatability,and storage stability than free Lac.Furthermore,owing to the synergism of MOF adsorption and Lac biocatalysis,the removal rate of Lac@MMOF for TC could be up to 98%at pH=7 within 1 hr,which was 1.29 and 1.24 times that of free Lac and MMOF,respectively.More importantly,Lac@MMOF could easily be separated from aqueous solution under a magnetic field and maintained good removal performance(80%)after five cycles.The degradation products were identified by applying LC-MS/MS,and possible degradation mechanisms and pathways were proposed.Finally,the antibacterial activity of intermediate products was evaluated using Escherichia coli,which revealed that the toxicity of TC was reduced effectively by the degradation of Lac@MMOF.Overall,Lac@MMOF is a green alternative for residual antibiotic removal in water. 展开更多
关键词 Tetracycline Metal-organic frameworks(MOFs) Laccase(Lac) Biodegradation Toxicity assessment
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