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Hydration Characteristics and Mechanical Properties of Cement-Based Materials Modified by Calcined Zeolite and Montmorillonite

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Journal of Renewable Materials 2023年第5期11卷 2191-2207页

作者： Lingling Qin Mengya Zhou Jiahao Yan Ping Duan Yingcan Zhu Wei Chen Zuhua Zhang Aiguo Wang Faculty of Materials Science and Chemistry Key Laboratory of Geological Survey and Evaluation of Ministry of EducationChina University of GeosciencesWuhan430074China Key Laboratory of Advanced Building Materials of Anhui Province Anhui Jianzhu UniversityHefei230022China Guangxi Key Laboratory of New Energy and Building Energy Saving Guilin University of TechnologyGuilin541004China Key Laboratory of Road Structure and Materials of Ministry of Transport Chang’an UniversityXi’an710064China Centre for Sustainable Agricultural Systems University of Southern QueenslandToowoombaQLD4350Australia State Key Laboratory of Silicate Materials for Architectures Wuhan University of TechnologyWuhan430070China Key Laboratory for Green&Advanced Civil EngineeringMaterials and Application Technology of Hunan Province College of Civil EngineeringHunan UniversityChangsha410082China

Montmorillonite and clinoptilolite zeolite were used as representative materials to prepare calcined clay-cement binary cementitious materials in order to study the effect of calcination treatment on the activation of clay minerals and the activity difference between layered and framed clays in this *** influence of different calcined clay content(2%,4%,6%,8%,10%)on the fluidity,compressive strength,microstructure,phase change,and hydration heat of cement-based materials were *** calcined clay improves the fluidity of cement-based materials as compared with the uncalcined *** addition of calcined montmorillonite(CMT)improves the development of mechanical strength,and the optimal compressive strength reaches 85 MPa at 28 days with 8%***,the activity of calcined clinoptilolite zeolite(CZL)is weak with few reaction sites,which slightly reduced the mechanical strength as compared to the blank *** addition of CMT changes the microscopic morphology of hydration products such as C-S-H and C-A-H,leading to the formation and transformation of ettringite in the early *** promotes the gradual polymerization of Si-O bonds into Si-O-Si bonds simultaneously,which accelerates the early hydration ***,CZL acts mainly as a filling function in the cementitious *** brief,CMT as an admixture can improve the mechanical properties of cement,but CZL has little *** work provides a guideline for the applications of calcined clay in cement,considering the influence of clay type on workability and mechanical strength.

关键词： Calcined clay cement montmorillonite clinoptilolite zeolite mechanical strength hydration

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14th International Conference on Natural Computation, Fuzzy Systems and Knowledge Discovery, ICNC-FSKD 2018

作者： Chen, Shidong Chen, Xiangqun Hu, Junhua Lu, Jun Hu, Zesheng Hunan Province Key Laboratory of Intelligent Electrical Measurement and Application Technology Hunan Changsha410004 China School of Electric and Electronic Engineering North China Electric Power University Beijing102206 China

ISBN: (纸本)9781538680971

Given the self-similarity characteristic of the communication traffic-flow in the current information gathering service traffic in power utilization network, a self-similarity modeling method is proposed to quantify the feature analysis of the communication flow for the power information gathering service. Firstly, the flow's characteristic and related course of the information gathering service traffic is analyzed, and a self-similarity model is built by means of combining the multiple ON/OFF flows. Secondly, the Hurst coefficient of the service simulation traffic is estimated using Variance-Time method to quantify the flow's self-similarity with the estimation results of Hurst coefficient. Finally, it discusses the influence of Hurst coefficient is discussed according to the two factors including the acquisition accuracy and the gathering periodic. Experimental results illustrate that the proposed method is effective to model the self-similarity of the information gathering service for the power utilization in Smart Grid. © 2018 IEEE.

关键词： Electric power utilization

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A DESIGN OF BOX-METER BINDING SYSTEM FOR POWER METERING BOX 22

A DESIGN OF BOX-METER BINDING SYSTEM FOR POWER METERING BOX

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3rd International Conference on Control, robotics and Intelligent System, CCRIS 2022

作者： He, Xing Huang, Rui Yu, Minqi Zeng, Wenwei Zhang, Suihan State Grid Hunan Electric Power Company Limited Hunan Province Key Laboratory of Intelligent Electrical Measurement and Application Technology Changsha Hunan410000 China College of Electrical and Information Engineering Hunan University Changsha Hunan410000 China State Grid Hunan Electric Power Company Limited China and Hunan Prov. Key Lab. of Intelligent Electrical Measurement and Application Technology China

ISBN: (纸本)9781450396851

At present, most of the topological identification and binding methods of box tables in power metering boxes are supported by the later platform algorithm. When installing or replacing electricity meters is installed, it is easy to lead to the wrong identification of box-meter binding. In this paper, the MCU and the multi-channel RFID identification board to obtain the asset information in the meter label, record the asset information data analysis and forward, and realize the accurate search, positioning, identification, recording, binding and other functions in the metering box. After the realization of the table and box relationship binding, the system establishes the relationship table internally, uploads the box and table relationship table to the energy controller through HPLC (High Performance Liquid Chromatography), and establishes the box and table ledger data of each metering box in the platform area. Through this method, the binding relationship between the individual meter and the corresponding position in the box is realized, which solves the problems of the meter management chaos and the box meter position relationship in the operation and maintenance process, which is of great significance to the humanized and efficient development of smart meters. © 2022 ACM.

关键词： Radio frequency identification (RFID)

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A flexible metal-organic framework with double interpenetration for highly selective CO_2 capture at room temperature

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Science China Chemistry 2016年第8期59卷 1051-1058页

作者： Bingcong Zhou Haowen Yang Yan Deng Ming Liu Bin Liu Nongyue He Zhiyang Li State Key Laboratory of Bioelectronics School of Biological Science and Medical Engineering Southeast University Laboratory of Neuro-Oncology Tianjin Neurological Institute Tianjin Medical University General Hospital Institute for Chemical and Bioengineering Department of Chemistry and Applied Biosciences ETH Zürich Economical Forest Cultivation and Utilization of 2011 Collaborative Innovation Center in Hunan Province Hunan Key Laboratory of Green Packaging and Application of Biological Nanotechnology Hunan University of Technology Department of Biomedical Engineering School of Basic Medical Sciences Nanjing Medical University Department of Laboratory Medicine Nanjing Drum Tower Hospital Clinical College of Nanjing Medical University

MicroRNAs （miRNAs） are small non-coding RNAs that regulate gene expression at the post-transcriptional level, and their aberrant expression occurs during the development of malignant diseases. Recently, miRNAs have been proposed as potential prognostic and predictive biomarkers for early diagnosis. However, a major obstacle in rapid miRNA analysis from real samples is the lack of ultrasensitive and quantitative techniques. In this regard, the use of chemiluminescence （CL） system offers a highly sensitive strategy for detecting miRNAs. In this article, an ultrasensitive approach has been established for the quantification ofmiRNAs, using magnetic beads （MBs） and alkaline phosphatase （AP）-based CL system. This technique depends on sandwich hybridization among MBs-labeled capture probes, target miRNAs and biotin-labeled reporter probes, conjugation of streptavidin-alkaline phosphatase （SA-AP） to biotin-labeled reporter probes, and CL detection of AP-linked targets. Detection of miR-21 with this technique demonstrated a high selectivity and an ultralow limit of detection （LOD） of 60 fM with an extraordinarily wide range of six orders of magnitudes. The quantitation could be achieved by direct detecting target miRNA in serum samples within a total time of 1.5 h and did not require reverse transcription and polymerase chain reaction （PCR） amplification. Therefore, this developed method shows great potential for early cancer diagnosis based on miRNAs as biomarkers.

关键词： MicroRNA quantitation magnetic bead chemiluminescence liver cancer

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Phase Engineering of Nanomaterials: Metal Nanomaterials

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Chemical Research in Chinese Universities 2025年 1-44页

作者： Chen, Ye Liu, Jiawei Yun, Qinbai Cheng, Hongfei Cui, Xiaoya Fan, Zhanxi Fu, Lei Gao, Chuanbo Ge, Jingjie Ge, Yiyao Guo, Shaojun Han, Sumei Hong, Xun Huang, Bolong Huang, Hongwen Huang, Xiaoqing Liao, Xiaozhou Ling, Chongyi Liu, Dong Lu, Yang Lu, Qipeng Niu, Wenxin Saleem, Faisal Shao, Minhua Shao, Qi Shi, Zhenyu Song, Li Sun, Shouheng Tilley, Richard D. Wang, Deli Wang, An-Liang Wang, Jinlan Xi, Pinxian Xia, Younan Xiong, Yujie Yang, Nailiang Yin, Pengfei Yu, Yifu Zhang, Zhicheng Zhou, Meng Zhu, Ye Zhang, Hua Department of Chemistry The Chinese University of Hong Kong Shatin New Territories 999077 Hong Kong Hong Kong Branch of National Precious Metals Material Engineering Research Center (NPMM) City University of Hong Kong 999077 Hong Kong Department of Chemical and Biological Engineering & Energy Institute The Hong Kong University of Science and Technology 999077 Hong Kong Shanghai Key Laboratory for R & D and Application of Metallic Functional Materials Institute of New Energy for Vehicles School of Materials Science and Engineering Tongji University Shanghai 201804 China Engineering Research Center of Ministry of Education for Geological Carbon Storage and Low Carbon Utilization of Resources School of Materials Science and Technology China University of Geosciences Beijing 100083 China Hebei Key Laboratory of Resource Low-carbon Utilization and New Materials China University of Geosciences Beijing 100083 China Department of Chemistry City University of Hong Kong 999077 Hong Kong Hong Kong Institute for Clean Energy City University of Hong Kong Kowloon 999077 Hong Kong City University of Hong Kong Shenzhen Research Institute Shenzhen 518057 China College of Chemistry and Molecular Sciences Wuhan University Wuhan 430072 China The Institute for Advanced Studies Wuhan University Wuhan 430072 China Sate Key Laboratory of Multiphase Flow in Power Engineering Frontier Institute of Science and Technology Xi’an Jiaotong University Xi’an 710049 China Department of Applied Biology and Chemical Technology The Hong Kong Polytechnic University Hung Hom Kowloon 999077 Hong Kong State Key Laboratory for Advanced Metals and Materials University of Science and Technology Beijing Beijing 100083 China School of Materials Science and Engineering Peking University Beijing 100871 China School of Materials Science and Engineering University of Science and Technology Beijing Beijing 100083 China Center of Advanced Nanocatalysis (CAN) Department of Applied Chemistry Univers

Phase is a fundamental structural parameter that distinguishes the atomic arrangement in materials. The recent advancement in phase engineering of nanomaterials (PEN) has witnessed the discovery and intriguing physicochemical properties of a number of unconventional phases in metal nanomaterials, enabling their promising applications in catalysis, optics, and so on. With the aid of advanced characterization techniques and theoretical calculations, phase engineering of metal nanomaterials has made significant progress in terms of precisely controlled synthesis, phase transformation, and phase-dependent property studies. This review summarizes the recent progress of PEN with a focus on metal nanomaterials. First, we introduce various synthetic strategies to prepare unconventional-phase metal nanomaterials, including monometallic and multimetallic nanomaterials. Second, we discuss methods to realize phase transformation of metallic nanomaterials. Then, we demonstrate various phase-dependent properties and applications of metal nanomaterials. Last, current challenges and exciting opportunities in the phase engineering of metal nanomaterials are discussed. © Jilin University, The Editorial Department of Chemical Research in Chinese Universities and Springer-Verlag GmbH 2025.

关键词： Metal nanomaterial Nanocatalysis Phase engineering of nanomaterial Phase-dependent property Unconventional-phase nanomaterial

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First-principles analysis of potassium and magnesium adsorption on an innovative VC4 monolayer

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Materials Science in Semiconductor Processing 2025年 195卷

作者： Luo, Yujia Jiang, Xinying Peng, Qiong Rehman, Javed Ullah, Mohib Shafiee, Saiful Arifin Tao, Lin Faizan, Muhammad Tighezza, Ammar M. Butt, Mehwish K. The Key Laboratory of Micro-nano Energy Materials and Application Technologies University of Hunan Province And College of Physics and Electronic Engineering Hengyang Normal University Hengyang421002 China Department of Chemistry Kulliyyah of Science International Islamic University Malaysia Jalan Sultan Ahmad Shah Pahang Kuantan25200 Malaysia Department of Chemistry Faculty of Science Engineering and Technology University of Gwadar Balochistan Gwadar91200 Pakistan School of Chemical Engineering University of Science and Technology Liaoning Anshann114051 China College of Materials Science and Engineering Jilin University Changchun130012 China Department of Chemistry P.O. Box 2455 College of Science King Saud University Riyadh11451 Saudi Arabia Frontiers Science Center for Flexible Electronics Xi'an Institute of Flexible Electronics Northwestern Polytechnical University 127 West Youyi Road Xi'an710072 China MEU Research Unit Middle East University Amman11831 Jordan

Mg-ion batteries (MgIBs) and K-ion batteries (KIBs) are considered excellent energy storage options due to their affordability and similarity to Li-ion batteries (LIBs) regarding the rocking chair mechanism. Nevertheless, a significant challenge exists in the form of a shortage of suitable electrode materials that can provide high performance for KIBs and MgIBs. Our study utilized first-principles calculations based on density functional theory (DFT) to evaluate the potential of the VC4 monolayer as an anode material for MgIBs and KIBs. The results indicate that Mg and K adsorption on the surface of VC4 is associated with negative favorable energies. Moreover, the VC4 monolayer can effectively achieve double-layer adsorption for K/Mg on both sides of its surface. The VC4 exhibits a remarkably high theoretical capability of 812 mA h/g for KIBs and 1624 mA h/g for MgIBs. These exceptional capacities for KIBs and MgIBs primarily arise from the minimal Coulombic repulsion forces between the VC4 sheet and K/Mg. Moreover, K and Mg portray large diffusivity on VC4, illustrated by low energy barriers of 0.15 eV and 0.09 eV, respectively. Moreover, the open circuit voltages (OCV), measuring 0.28 V for MgIBs and 0.49 V for KIBs, are notably lower than in previous studies. Despite the relatively large size of K+/Mg+ ions, the maximum alteration in VC4 lattice parameters stands at 6.01 % and 6.8 %, respectively. This observation highlights the material's structural stability, ensuring robust cycling performance for KIBs and MgIBs. These results underscore the potential of the VC4 monolayer as a novel candidate for KIBs and MgIBs. © 2025 Elsevier Ltd

关键词： Lithium-ion batteries

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Multi-State Recognition Method of Substation Switchgear Based on Image Enhancement and Deep Learning

Multi-State Recognition Method of Substation Switchgear Base...

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2022 International Conference on Mechatronics and Automation technology, ICMAT 2022

作者： He, Xing Huang, Rui Yu, Minqi Zeng, Wenwei Zhang, Suihan State Grid Hunan Electric Power Company Limited Hunan Changsha410000 China Hunan Province Key Laboratory of Intelligent Electrical Measurement and Application Technology Changsha410000 China College of Electrical and Information Engineering Hunan University Hunan Changsha410000 China

ISBN: (纸本)9781643683669

s. Since the current substation robot inspection process exists in the high-voltage switchgear status recognition is highly susceptible to the influence of complex environments such as low image contrast, light clutter interference, and blurred reading status details, this paper proposes an image enhancement and deep learning based substation switchgear state recognition method. A multi-scale Retinex-based image enhancement is proposed to enhance the adaptability of outdoor switchgear images to light changes;improve the YOLOx target detection network to introduces a lightweight ECA attention mechanism without dimensionality reduction based on the original YOLOx model's backbone network CSPDarknet, allowing the model to learn classification features while also focusing on learning spatial features. The experimental results show that the improved network can accurately identify the boundary information of anomalies, and the quality of its prediction results will not be reduced for noise-containing data, and the network shows strong generalization, robustness, accuracy and rapidity, providing certain conditions for realizing substation equipment condition monitoring. © 2022 The authors and IOS Press.

关键词： Image enhancement

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A Novel CA4P Polymeric Nanoparticle for Murine Hepatoma Therapy

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Chinese Journal of Polymer Science 2023年第8期41卷 1223-1229,I0007页

作者： Zhi-Lin Liu Xi-Tong Ren Yue Huang Jia-Li Sun Xiao-Shuang Wang Meng-Fei Zheng Lin-Jie Cui Xue-Fei Zhang Zhao-Hui Tang Key Laboratory of Polymer Ecomaterials Changchun Institute of Applied ChemistryChinese Academy of SciencesChangchun 130022China Jilin Biomedical Polymers Engineering Laboratory Changchun 130022China School of Applied Chemistry and Engineering University of Science and Technology of ChinaHefei 230026China No.1 Department of Neurology China-Japan Union Hospital of Jilin UniversityChangchun 130033China Key Laboratory of Environmentally Friendly Chemistry and Applications of Ministry of Education and Key Laboratory of Polymeric Materials&Application Technology of Hunan Province College of ChemistryXiangtan UniversityXiangtan 411105China

Combretastatin A4 phosphate(CA4P)is a potent vascular disrupting agent with good water ***,it is only effective at high doses,which decreases clinical ***,we designed stable CA4P polymeric nanoparticles(CA4P NPs)consisting of various cholesterol derivatives,and with a drug loading efficacy of 93%.The nanoparticles released CA4P in a sustained manner and achieved a 72%inhibition rate in the murine H22 liver tumor model,which was about 2.9-fold higher than that of free CA4P(24.6%).Furthermore,the carrier components of CA4P NPs were metabolized to arginine,cholesterol,ethanol and poly(ethylene glycol)in vivo;therefore,the CA4P NPs are safe and have significant potential for clinical translation.

关键词： CA4P polymeric nanoparticle Cholesterol derivatives Vascular disrupting agent Phosphate-guanidine coordination Drug controlled release

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IL-2-loaded Polypeptide Nanoparticles for Enhanced Anti-cancer Immunotherapy

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Chinese Journal of Polymer Science 2023年第7期41卷 1059-1068页

作者： Xiao-Shuang Wang Zhao-Shi Zheng Meng-Fei Zheng Di Wang Hong-Lei Zhang Zhen-Qian Zhang Zhi-Lin Liu Zhao-Hui Tang Xue-Mei Han No.1 Department of Neurology China-Japan Union Hospital of Jilin UniversityChangchun130033China Key Laboratory of Polymer Ecomaterials Changchun Institute of Applied ChemistryChinese Academy of SciencesChangchun130022China Jilin Biomedical Polymers Engineering Laboratory Changchun130022China School of Applied Chemistry and Engineering University of Science and Technology of ChinaHefei230026China Key Laboratory of Environmentally Friendly Chemistry and Applications of Ministry of Education and Key Laboratory of Polymeric Materials&Application Technology of Hunan Province Xiangtan UniversityXiangtan411105China

Interleukin 2 (IL-2) is widely used as an active immunotherapeutic agent in clinical metastatic cancers. However, its therapeutic concentrations do not last long due to its short half-life. Thus, only a transient proliferation of the anti-cancer CD8+ T cells can be achieved, resulting in poor efficacy. Therefore, the aim of this work was to create a system that promotes CD8+ T cell proliferation at the tumor site using IL-2 persistently present and activates an anti-cancer immune response. This goal was achieved by the design of the IL-2-loaded polypeptide nanoparticles (P-IL-2) where methoxy poly(ethylene glycol) block poly-[(N-2-hydroxyethyl)-aspartamide] phenylboronic acid was used to encapsulate IL-2 through boron-nitrogen coordination with poly(L-lysine). P-IL-2 significantly prolonged the circulation time of IL-2 and achieved a selective drug release at the tumor site in the presence of high levels of reactive oxygen species, thus activating an anti-cancer immune response and exerting a better anti-cancer effect. The half-life of P-IL-2 was 3.15-fold higher than that of IL-2, and the quantity of CD8+ T cells after using P-IL-2 was 1.89-fold higher than that after using IL-2. In addition, the combination of P-IL-2 and anti-CTLA-4 monoclonal antibody resulted in an enhanced immune activation. Hence, this work provides a new approach to improve the efficacy of IL-2 in anti-cancer immunotherapy.

关键词： Polypeptide Phenylboronic acid Boron-nitrogen coordination Interleukin 2 ROS-responsive

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Temperature-modulated crystallographic orientation and electrical properties of BiFeO_(3) thick films sputtered on LaNiO_(3)/Pt/Ti/SiO_(2)/Si for piezo-MEMS applications

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Journal of Advanced Ceramics 2024年第12期13卷 1943-1954页

作者： Hongyu Luo Miaomiao Niu Hanfei Zhu Li Li Hongbo Cheng Chao Liu Jianting Li Yuyao Zhao Chenxi Zhang Xiaojie Cao Isaku Kanno Qingguo Chi Jun Ouyang School of Chemistry and Chemical Engineering Qilu University of Technology(Shandong Academy of Sciences)Jinan 250353China School of Mechanical Electrical&Information EngineeringShandong UniversityWeihai 264209China Key Laboratory of Engineering Dielectrics and Its Application(Ministry of Education) Harbin University of Science and TechnologyHarbin 150080China School of Mechanical Engineering Qilu University of Technology(Shandong Academy of Sciences)Jinan 250353China State Key Laboratory of Metal Matrix Composites School of Material Sciences and EngineeringShanghai Jiao Tong UniversityShanghai 200240China Department of Mechanical Engineering Kobe UniversityKobe 657-8501Japan Key Laboratory of Key Film Materials&Application for Equipments(Hunan Province) Hunan Provincial Key Laboratory of Thin Film Materials and DevicesSchool of Material Sciences and EngineeringXiangtan UniversityXiangtan 411105China

In this work,thick BiFeO_(3)films(~1μm)were prepared on LaNiO_(3)-buffered(111)Pt/Ti/SiO_(2)/(100)Si substrates via radio-frequency magnetron sputtering without post-growth *** effects of the substrate temperature on the film’s crystallinity,defect chemistry,and associated electrical properties were *** contrast to the poorly crystallized BiFeO_(3)film deposited at 300℃and the randomly-oriented and(111)-textured films deposited at 500 and 650℃,respectively,a(001)-preferred orientation was achieved in the BiFeO_(3)film deposited at 350℃.This film not only showed a dense,fine-grained morphology but also displayed enhanced electrical properties due to the(001)texture and improved defect *** properties include a reduced leakage current(J≈2.4×10^(−5)A/cm^(2)@200 kV/cm),a small dielectric constant(ε_(r)≈243–217)with a low loss(tanδ≤0.086)measured from 100 Hz to 1 MHz,and a nearly intrinsic remnant polarization(Pr)of~60μC/cm^(2).A detailed TEM analysis confirmed the R3c symmetry of the BFO films and hence ensured good stability of their electrical *** particular,single-beam cantilevers fabricated from BiFeO_(3)/LaNiO_(3)/Pt/Ti/SiO_(2)/Si heterostructures showed excellent electromechanical performance,including a large transverse piezoelectric coefficient(e_(31,f))of~−2.8 C/m^(2),a high figure of merit(FOM)parameter of~4.0 GPa,and a large signal-to-noise ratio of~1.5 C/m^(2).An in-depth analysis revealed the intrinsic nature of the e_(31,f)piezoelectric coefficient,which is well fitted along a straight line of e_(31,f)ratio=(ε_(r)P_(r))ratio with the reported representative *** high-quality lead-free piezoelectric films processed with a reduced thermal budget can open many possibilities for the integration of piezoelectricity into Si-based microelectro–mechanical systems(MEMSs).

关键词： BiFeO_(3) film ferroelectric piezoelectric micro-electro-mechanical system(piezo-MEMS) low thermal budget crystallographic orientation magnetron sputtering

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