检索结果-南通市图书馆

Experimental and Numerical Study of Bonding Capacity of Interface between Ultra-High Performance Concrete and Steel Tube

在线全文

维普期刊数据库

学校读者我要写书评

暂无评论

Structural Durability & Health Monitoring 2025年第2期19卷 285-305页

作者： Ruikun Xu Jiu Li wenjie Li Wei zhang China Communications Third Highway Engineering Bureau Co. Ltd.Fuzhou350300China College of Civil Engineering Fujian University of TechnologyFuzhou350118China

This study investigates the bond performance at the interfacial region shared by Ultra-High Performance Concrete(UHPC)and steel tubes through push-out *** study examines how changes in steel fiber volumetric ratio and thickness of steel tube influence the bond strength *** results show that as the enhancement of the steel tube wall thickness,the ultimate bond strength at the interface improves significantly,whereas the initial bond strength exhibits only slight *** influence of steel fiber volumetric ratio presents a nonlinear trend,with initial bond strength decreasing at low fiber content and increasing significantly as fiber content ***,finite element(FE)simulations were applied to replicate the experimental conditions,and the outcomes showed strong correlation with the experimental data,confirming the exactitude of the FE model in predicting the bond behavior at the UHPC-Steel *** findings provide valuable insights for optimizing the design of UHPC-Filled steel tubes in high-performance structure.

关键词： Ultra-high performance concrete filled steel tube(UHPCFST) push-out test bonding capacity cohesive zone model

Optimizing local search-based partial MaxSAT solving via initial assignment prediction

在线全文

维普期刊数据库

学校读者我要写书评

暂无评论

Science China(Information Sciences) 2025年第2期68卷 59-73页

作者： Chanjuan LIU Guangyuan LIU Chuan LUO Shaowei CAI Zhendong LEI wenjie zhang Yi CHU Guojing zhang School of Computer Science and Technology Dalian University of Technology School of Software Beihang University Institute of Software Chinese Academy of Sciences School of Computer Science Peking University

Partial maximum satisfiability(PMS) is a significant generalization of Boolean satisfiability(SAT) and maximum satisfiability(MaxSAT), by introducing hard clauses and soft clauses. Compared with SAT and MaxSAT, the PMS problem has more real-world applications where both hard and soft constraints are involved. Local search is an effective incomplete method for solving PMS and is useful for important domains where good-quality solutions are desired within reasonable *** local search PMS solvers, the approach for initial assignment generation is crucial because its effectiveness significantly affects practical performance. In this study, we propose a novel initial assignment prediction approach, called InitPMS. When predicting an assignment for PMS, InitPMS considers the specific structure of PMS instances, i.e., distinguishing hard and soft clauses. Our experiments on extensive PMS instances from MaxSAT evaluations(MSEs) 2020 and 2021 show that InitPMS significantly boosts the performance of five state-of-the-art local search PMS solvers, demonstrating its generality. In addition,our results indicate that incorporating InitPMS could improve the performance of one of the best incomplete PMS solvers in MaxSAT Evaluation 2021, indicating that InitPMS might help advance the state of the art in PMS solving.

关键词： MaxSAT local search initial assignment incomplete method assignment prediction

Synergistic enhancement of ion/electron transport by ultrafine nanoparticles and graphene in Li2FeTiO4/C/G nanofibers for symmetric Li-ion batteries

在线全文

同方期刊数据库

学校读者我要写书评

暂无评论

Journal of Energy Chemistry 2025年第02期101卷 42-51页

作者： wenjie Ma Yakun Tang Yue zhang Xiaohui Li Lang Liu Xueting Wang Yuliang Cao State Key Laboratory of Chemistry and Utilization of Carbon Based Energy Resources Key Laboratory of Energy Materials Chemistry Ministry of Education College of Chemistry Xinjiang University College of Chemistry and Molecular Sciences Hubei Key Laboratory of Electrochemical Power Sources Wuhan University

Low-cost Fe-based disordered rock salt（DRX） Li2FeTiO4is capable of providing high capacity(295 mA h g-1) by redox activity of cations(Fe2+/Fe4+and Ti3+/Ti4+) and anionic ***,DRX structures lack transport channels for ions and electrons,resulting in sluggish kinetics,poor electrochemical activity,and ***,graphene conductive carbon network permeated Li2FeTiO4（LFT/C/G） nanofibers are successfully prepared by a facile sol-gel assisted electrospinning *** Li2FeTiO4nanoparticles（2 nm） and one-dimensional（1D） structure provide abu ndant active sites and unobstructed diffu sion channels,accelerating ion *** addition,introducing graphene reduces the band gap and Li+diffusion barrier and improves the dynamic properties of Li2FeTiO4,thus achieving a relatively mild interfacial reaction and reversible redox *** expected,the LFT/C/1.0G cathode delivers a remarkable discharge capacity(238.5 mA h g-1),high energy density(508.8 Wh kg-1),and excellent rate capability(51.2 mA hg-1at 1.0 A g-1).Besides,the LFT/C/1.0G anode also displays a high capacity(514.5 mA h g-1at 500 mA g-1) and a remarkable rate capability(243.9 mA h g-1at 8 A g-1).Moreover,the full batteries based on the LFT/C/1.0G symmetric electrode demonstrate a reversible capacity of 117.0 mA h g-1after 100 cycles at 50 mA *** study presents useful insights into developing cost-effective DRX cathodes with durable and fast lithium storage.

关键词： 1D structure Disordered rock salt Li2FeTiO4 Graphene Lithium-ion battery electrode Rapid ion/electron transport

Combination of fruquintinib with venetoclax for the treatment of colorectal cancer

在线全文

同方期刊数据库

学校读者我要写书评

暂无评论

Oncology Research 2025年第1期33卷 225-234页

作者： WEI zhang WEICHENG WANG RUI WANG XIAO HAN LIJUN ZHU wenjie GUO YANHONG GU Department of Oncology The First Affiliated Hospital of Nanjing Medical UniversityNanjing210029China State Key Laboratory of Pharmaceutical Biotechnology School of Life SciencesNanjing UniversityNanjing210023China Department of Oncology The Affiliated Taizhou People’s Hospital of Nanjing Medical UniversityTaizhou225300China

Background:As a novel blocker of vascular endothelial growth factor receptor(VEGFR),fruquintinib has been approved for treating colorectal cancer(CRC).However,its dosage and therapeutic efficacy are limited by its widespread adverse ***,recognized as the initial inhibitor of B-cell lymphoma protein 2(BCL2),has shown potential in boosting the effectiveness of immunotherapy against *** study investigated the efficacy and mechanisms of fruquintinib combined with venetoclax in treating *** and Materials:We developed a colon cancer mouse model with the CT26 colon cell line to demonstrate fruquintinib and venetoclax’s efficacy against *** we employed various techniques to evaluate different aspects of the experimental *** was used to detect cell proliferation and angiogenesis in tumor *** blot analysis was utilized to examine the occurrence of cell apoptosis,and flow cytometry to quantitate immune cells within the tumor ***,immunofluorescence was employed to measure cytokine ***:The strongest inhibition on tumor growth was achieved by the combination of fruquintinib with venetoclax,as opposed to individual drug *** was found to amplify the impact of fruquintinib,leading to decreased cancer cell proliferation,increased cancer cell apoptosis,lowered angiogenesis,better vascular structure normalization,and improved immune cell ***:Our findings indicate that the addition of venetoclax enhances the impact of fruquintinib on vascular normalization and modulation of the tumor immune *** study presents the justification for utilizing the fruquintinib and venetoclax combination in treating *** holds promise in being assimilated into anticancer medications for CRC.

关键词： Colorectal cancer(CRC) B-cell lymphoma protein 2(BCL2) Venetoclax Vascular endothelial growth factor receptor(VEGFR) Fruquintinib Anti-angiogenesis Immunotherapy

Deformable Perfect Vortex Wave-Front Modulation Based on Geometric Metasurface in Microwave Regime

在线全文

维普期刊数据库

学校读者我要写书评

暂无评论

Chinese Journal of Electronics 2025年第1期34卷 64-72页

作者： Yueyi Yuan wenjie Zhou Mengnuo Fan Qun Wu Kuang zhang Harbin Institute of Technology

Perfect vortex(PV) beam, as a novel paradigm to carry orbital angular momentum(OAM), owns constant radius of energy intensity and infinite mode of helical patterns, which overcomes the divergence performances of conventional vortex beam. However, common approaches for PV beam generation require optical cascading systems that should constitute of various lenses and components with bulk volume and high alignment standards,also cannot realize PV customization. Thus, in this paper, we propose a general scheme based on compact platform of geometric metasurface to achieve PV beams generations and deformable wave-front modulations. The adopted unit cell is designed with “ABA”-shaped configuration, which can high-efficiently transform circular polarization incident wave into its cross-polarized state and impose required PV phase patterns. Here, we construct series of metasurface lenses to achieve PVs with eight different OAM modes at operating frequency 10 GHz, and additionally conduct quasi-elliptical energy-ring intensities and fractional modals of PVs by introducing asymmetric periodicity and extra singularities. By exploiting compact metasurface platform, this general scheme for PV beam generation and modulation would provide a theoretical foundation for the electromagnetic waves controlling in modern wireless communication systems.

关键词： Wireless communication Polarization Optical polarization Optical vortices Metasurfaces Geometrical optics Adaptive optics Optical modulation Optical beams Lenses

MoS2 synaptic transistor with one-step manufacture

在线全文

同方期刊数据库

学校读者我要写书评

暂无评论

Science China(Information Sciences) 2025年第1期68卷 357-365页

作者： Yihao GUO Yang WANG wenjie DENG Yi WU Jingtao LI Kexin LI Yuehui ZHAO Songlin YU Xiaoting WANG Yongzhe zhang Hui YAN Key Laboratory of Optoelectronics Technology of Education Ministry of China Faculty of Information TechnologyBeijing University of Technology Key Laboratory of Advanced Functional Materials Ministry of Education Faculty of Materials and ManufacturingBeijing University of Technology The 11th Research Institute of Electronics Technology Group Corporation

The synaptic transistor,which is a neuromorphic device with brain-like functions,has garnered significant attention due to characteristics such as low energy consumption,high integration,multiple functions,and high computational ***,the current synaptic transistor possesses a complicated structure and involves complex manufacturing steps,which is not conducive to low-cost,large-scale bionic ***,we introduce a simple MoS2synaptic transistor exhibiting robust synaptic *** transistor utilizes magnetron sputtering manufacture to combine the process of device metal electrode deposition and the introduction of defect states,which helps streamline the manufacturing process into a single *** long-term potentiation and long-term depression in photoelectric coordination are initially ***,biological functions,such as double pulse facilitation and the transformation behavior of short-term memory to long-term memory,are thoroughly evaluated,along with learning-forgetting-relearning ***,the device exhibits robust synaptic plasticity until incident light angles down to 30° to imitate the multi-to-one axon-cellular ***,a classical simulation of Pavlov's dog conditioned reflex is demonstrated along with the multiview extraction *** experimental results demonstrate a promising synaptic transistor with a simple structure,manufacturing technique,and excellent *** further indicates the potential for large-scale integration of bionic neuromorphic systems.

关键词： process optimization artificial synaptic device one-stepmanufacture synaptic plasticity bionic simulation

同方期刊数据库

Enhanced electrochemical CO_(2)reduction coupled with urea oxidation using bifunctional atomically dispersed CuNi catalysts

在线全文

学校读者我要写书评

暂无评论

Nano Research 2025年第1期18卷 208-216页

作者： wenjie Wu Haoyang Zhou Ying Liu Yifei Pan Qingqing Chen Yu zhang Junjie Mao wenjie Ma Ping Yu Beijing National Laboratory for Molecular Sciences Key Laboratory of Analytical Chemistry for Living BiosystemsInstitute of ChemistryChinese Academy of Sciences(CAS)Beijing 100190China College of Chemistry and Materials Science Anhui Normal UniversityWuhu 241002China University of Chinese Academy of Sciences Beijing 100049China

The electrochemical conversion of carbon dioxide(CO_(2))into chemical fuels represents a promising approach for addressing global carbon balance ***,this process is hindered by the kinetic limitations of anodic reactions,usually the oxygen evolution reaction,resulting in less efficient production of high value-added ***,we report an integrated electrocatalytic system that couples CO_(2)reduction reaction(CO_(2)RR)with urea oxidation reaction(UOR)using a bifunctional electrocatalyst with atomically dispersed dual-metal CuNi sites anchored on bamboo-like nitrogen-doped carbon nanotubes(CuNi-CNT),which were synthesized through a one-step pyrolysis *** bifunctional CuNi-CNT catalyst exhibits a near 100%CO Faraday efficiency for CO_(2)RR over a wide potential range and outstanding UOR performance with a negatively shifted potential of 210 mV at 10 mA·cm^(-2).In addition,we assemble a two-electrode electrolyzer using bifunctional CuNi-CNT-modified carbon fiber paper electrodes as both cathode and anode,capable of operating at a remarkably low cell voltage of 1.81 V at 10 mA·cm-2,significantly lower than conventional *** study provides a novel avenue to achieving an efficient carbon cycle with reduced electric power consumption.

关键词： electrochemical conversion bimetallic site catalyst bifunctional electrocatalyst carbon dioxide reduction urea oxidation

Assembly and Transfer of Iron-sulfur Clusters during the isc Proteins in Acidithiobacillus f errooxidans

在线全文

维普期刊数据库

学校读者我要写书评

暂无评论

Assembly and Transfer of Iron-sulfur Clusters during the isc...

第五届全国化学生物学学术会议

作者： Yanfei zhang wenjie Zhao~1 Huidan Jiang~1 Jia Zeng~1 Jianshe Liu~(2*) 1 School of Resources Processing and Bioengineering,Central South University,Changsha 410083,P R China 2 School of Environmental Science & Engineering,Donghua University,Shanghai 201620,P R China

The highly conserved operon iron-sulfur cluster(iscSUA)is essential for the general biogenesis and transfer of iron-sulfur proteins in *** this study,expression,purification and characterization of the proteins of the isc operon(iscSUA)of Acidithiobacillus ferrooxidans ATCC 23270 was *** and transfer of[FeS]in vitro during the isc proteins and other iron

关键词：

来源： cnki会议评论

在线全文

cnki会议

学校读者我要写书评

暂无评论

F型小麦雄性不育系育性的遗传分析

麦类作物学报 2018年第9期38卷 1029-1037页

作者：秦梦颖苑少华冯树英段文静白建芳王娜赵昌平章文杰张风廷张立平北京市农林科学院杂交小麦工程技术研究中心/杂交小麦分子遗传北京市重点实验室北京100097 北京农学院植物科学技术学院北京102206 山西运城市蓝红杂交小麦研究中心山西运城044000

F型不育系(FA)是我国近年来新选育的普通小麦细胞质的CMS型不育系,为确定FA育性基因的遗传模型,采用植物数量性状主基因+多基因遗传模型的5世代联合分析方法,以FA/临汾3158、FA/冬81、FA/HB-7三个杂交组合的P_1、P_2、F_1、F_2群体和FA/... 详细信息

F型不育系(FA)是我国近年来新选育的普通小麦细胞质的CMS型不育系,为确定FA育性基因的遗传模型,采用植物数量性状主基因+多基因遗传模型的5世代联合分析方法,以FA/临汾3158、FA/冬81、FA/HB-7三个杂交组合的P_1、P_2、F_1、F_2群体和FA/HB-7的F_(2:3)群体为试材,分析了FA育性的遗传特性和遗传效应。结果表明,FA育性受2对加性-显性-上位性主基因和加性-显性多对微效基因共同控制,基因互作效应明显。三个F2群体结实率的主基因遗传率为50.58%～71.77%,多基因遗传率为0～45.58%,环境遗传效应值为3.84%～44.12%;三个F_2群体结实小穗率的主基因遗传率为52.35%～66.36%,多基因遗传率为0～17.77%,环境遗传效应值为25.70%～47.65%。FA/HB-7的F_(2:3)群体育性在北京、南阳两地的主基因遗传率相差较大,北京、南阳结实率和结实小穗率的主基因遗传率分别为7.50%和5.45%、90.89%和77.83%,多基因遗传率均为0.00%。FA育性以主基因遗传为主,但环境对性状的影响较大,推测FA育性可能具有一定的环境诱导效应。研究结果为进一步改良和利用FA及其杂种优势利用奠定了基础。

关键词：小麦 F型雄性不育系育性遗传模型

维普期刊数据库