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Anchoring 1T-MoS_(2)petals on N-doped reduced graphene oxide for exceptional electromagnetic wave absorption

International Journal of Minerals,Metallurgy and Materials 2025年第3期32卷 619-630页

作者： Jia Zhao Haoran Lai Ming Li College of Chemistry and Materials Engineering Bohai UniversityJinzhou 121013China Yangtze Delta Region Institute(Huzhou) University of Electronic Science and Technology of ChinaHuzhou 313001China College of Chemistry and Chemical Engineering Jishou UniversityJishou 416000China

The effective construction of electromagnetic(EM)wave absorption materials with thin matching thickness,broad bandwidth,and remarkable absorption is a great solution to EM pollution,which is a hot topic in current environmental *** this study,N-doped reduced graphene oxide(N-rGO)was first prepared using a facile hydrothermal ***,high-purity 1T-MoS_(2)petals were homogeneously anchored to the wrinkled surface of N-rGO to fabricate 1T-MoS_(2)@N-rGO *** numerous electric di-poles and profuse heterointerfaces in 1T-MoS_(2)@N-rGO would induced the multiple reflection and scattering of EM waves in a distinct-ive multidimensional structure formed by two-dimensional N-rGO and 1T-MoS_(2)microspheres with plentiful thin nanosheets,remarkable conduction loss derived from the migration of massive electrons in a well-constructed conductive network formed by 1T-MoS_(2)@N-rGO,and abundant polarization loss(including dipolar polarization loss and interfacial polarization loss).All of these gave the 1T-MoS_(2)@N-rGO nanocomposites superior EM wave absorption *** effective absorption bandwidth of 1T-MoS_(2)@N-rGO reached 6.48 GHz with a relatively thin matching thickness of 1.84 mm,and a minimum reflection loss of-52.24 dB was achieved at 3.84 ***,the radar scattering cross-section reduction value of 1T-MoS_(2)@N-rGO was up to 35.42 dB·m^(2) at 0°,which further verified the huge potential of our fabricated 1T-MoS_(2)@N-rGO nanocomposites in practical applications.

关键词： 1T-MoS_(2)@N-rGO nanocomposites conduction loss polarization loss ultrathin matching thickness electromagnetic wave absorption

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Rising above:exploring the therapeutic potential of natural product-based compounds in human cancer treatment

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Traditional Medicine Research 2025年第3期10卷 56-74页

作者： Li-Yan Yang Shi-Zeng Lei Wen-Jing Xu Yu-Xin Lai Ying-Ying Zhang Ying Wang Zhong-Lei Wang School of Physics and Physical Engineering Qufu Normal UniversityQufu 273165China Beijing National Laboratory for Molecular Sciences Institute of ChemistryChinese Academy of SciencesBeijing 100190China Key Laboratory of Green Natural Products and Pharmaceutical Intermediates in Colleges and Universities of Shandong Province School of Chemistry and Chemical EngineeringQufu Normal UniversityQufu 273165China School of Pharmaceutical Sciences Key Laboratory of Bioorganic PhosphorusChemistry and Chemical Biology(Ministry of Education)Tsinghua UniversityBeijing 100084China

Tumors,due to their diversity and heterogeneity,pose a significant threat to human *** resistance is a prevalent and grave issue in clinical treatment,resulting in treatment failure and cancer *** resistance renders conventional drug therapies ineffective,presenting a substantial challenge to human health and medical *** natural products as potential sources for anti-cancer drugs could lead to the development of innovative and efficacious cancer *** article aims to investigate the health implications of natural products(such as paclitaxel,podophyllotoxin,homoharringtonine,camptothecin,and vinblastine)in the discovery of anti-cancer drugs while discussing the methods and progress made in researching novel anti-cancer drugs derived from natural *** paper discusses the diversity,intricate structures,and target affinity of natural products along with their structural modification techniques,combination therapies utilization possibilities with prodrugs or ***,considering the escalating multidrug resistance observed in tumors nowadays;certain natural products offer new insights and approaches for discovering effective anti-tumor drugs that are crucial for addressing global public health *** challenges faced by natural products during drug development including issues related to bioavailability toxicity concerns as well as limited resources are examined *** opportunities current issues along with future challenges are highlighted aiming at facilitating the clinical translation of original anti-cancer drugs using natural products.

关键词： tumors multidrug resistance natural products camptothecin future challenges

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Effect of isotope on state-to-state dynamics for reactive collision reactions O(3P)+H2^+→OH^++H and O(3P)+H2^+→OH+H^+ in ground state 1^2A" and first excited 1^2A' potential energy surfaces

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Chinese Physics B 2020年第2期29卷 231-242页

作者： Juan Zhao Ting Xu Lu-Lu Zhang Li-Fei Wang School of Science Shandong Jiaotong UniversityJinan 250357China School of Physics and Electronics Shandong Normal UniversityJinan 250358China

We carry out quantum scattering dynamics and quasi-classical trajectory（QCT） calculations for the O+H2+ reactive collision in the ground（12 A"）.nd first excited（12 A’） potential energy *** calculate the reaction probabilities of O+H2+（v=0,j=0）→OH++H and O+H2+（v=0,j=0）→OH+H+reaction for total angular momentum J=*** results calculated by QCT are consistent with those from quantum mechanical wave *** the QCT method,we generate in the center-of-mass frame the product state-resolved integral cross-sections（ICSs）;two commonly used generalized polarization-dependent differential cross-sections（PDDCS s）,（2π/σ）(dσ00/dωt),（2π/σ）(dσ20/dωt));and three angular distributions of the product rotational vectors,p（θr）,P（φr）,and p（θr,φr）.We discuss the influence on the scalar and vector properties of the potential energy surface,the collision energy,and the isotope *** there are deep potential wells in these two potential energy surfaces,their kinetic characteristics are similar to each other and the isotopic effect is not ***,the well depths and configurations of the two potential energy surfaces are different,so the effects of isotopic substitution on the integral cross-section and the rotational polarization of product are different.

关键词： quasi-classical trajectory state-to-state isotopic substitution rotational polarization of product

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Multi-class classification method for strip steel surface defects based on support vector machine with adjustable hyper-sphere

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Journal of Iron and Steel Research International 2018年第7期25卷 706-716页

作者： Mao-xiang Chu Xiao-ping Liu Rong-fen Gong Jie Zhao School of Electronic and Information Engineering University of Science and Technology Liaoning Anshan 114051 Liaoning China Department of Electrical Engineering Lakehead University Thunder Bay P7B 5E1 ON Canada State Key Laboratory of Robotics and System (HIT) Harbin 150001 Heilongjiang China

Focusing on strip steel surface defects classification, a novel support vector machine with adjustable hyper-sphere （AHSVM） is formulated. Meanwhile, a new multi-class classification method is proposed. Originated from support vector data description, AHSVM adopts hyper-sphere to solve classification problem. AHSVM can obey two principles： the margin maximization and inner-class dispersion minimization. Moreover, the hyper-sphere of AHSVM is adjustable, which makes the final classification hyper-sphere optimal for training dataset. On the other hand, AHSVM is combined with binary tree to solve multi-class classification for steel surface defects. A scheme of samples pruning in mapped feature space is provided, which can reduce the number of training samples under the premise of classification accuracy, resulting in the improvements of classification speed. Finally, some testing experiments are done for eight types of strip steel surface defects. Experimental results show that multi-class AHSVM classifier exhibits satisfactory results in classification accuracy and efficiency.

关键词： Strip steel surface defect Multi-class classification Supporting vector machine Adjustable hyper-sphere

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Stacking MoS_(2) flower-like microspheres on pomelo peels-derived porous carbon nanosheets for high-efficient X-band electromagnetic wave absorption

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Nano Research 2024年第3期17卷 1607-1615页

作者： Jia Zhao Zhe Gu Qingguo Zhang College of Chemistry and Materials Engineering Bohai UniversityJinzhou 121013China

The key to solve increasingly severe electromagnetic(EM)pollution is to explore sustainable,easily prepared,and cost-effective EM wave absorption materials with exceptional absorption ***,instead of anchoring on carbon materials in single layer,MoS_(2) flower-like microspheres were stacked on the surface of pomelo peels-derived porous carbon nanosheets(C)to fabricate MoS_(2)@C nanocomposites by a facile solvothermal *** wave absorption performances of MoS_(2)@C nanocomposites in X-band were systematically investigated,indicating the minimum reflection loss(RLmin)of-62.3 dB(thickness of 2.88 mm)and effective absorption bandwidth(EAB)almost covering the whole X-band(thickness of 2.63 mm)with the filler loading of only 20 wt.%.Superior EM wave absorption performances of MoS_(2)@C nanocomposites could be attributed to the excellent impedance matching characteristic and dielectric loss capacity(conduction loss and polarization loss).This study revealed that the as-prepared MoS_(2)@C nanocomposites would be a novel prospective candidate for the sustainable EM absorbents with superior EM wave absorption performances.

关键词： pomelo peels-derived porous carbon nanosheets(C) MoS_(2)@C nanocomposites stacked structure electromagnetic(EM)wave absorption

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Representations of hypergraph states with neural networks

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Communications in Theoretical Physics 2021年第10期73卷 97-106页

作者： Ying Yang Huaixin Cao School of Mathematics and Information Technology Yuncheng UniversityYuncheng 044000China School of Mathematics and Statistics Shaanxi Normal UniversityXi'an 710119China

The quantum many-body problem(QMBP) has become a hot topic in high-energy physics and condensed-matter physics. With an exponential increase in the dimensions of Hilbert space, it becomes very challenging to solve the QMBP, even with the most powerful computers. With the rapid development of machine learning, artificial neural networks provide a powerful tool that can represent or approximate quantum many-body states. In this paper, we aim to explicitly construct the neural network representations of hypergraph states. We construct the neural network representations for any k-uniform hypergraph state and any hypergraph state,respectively, without stochastic optimization of the network parameters. Our method constructively shows that all hypergraph states can be represented precisely by the appropriate neural networks introduced in [Science 355(2017) 602] and formulated in [Sci. ***. Astron. 63(2020) 210312].

关键词： hypergraph state neural network quantum state representation

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Nitrogen Doped Multi-channel Graphite for High Rate and High Capacity Li Ion Battery

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Journal of Wuhan university of Technology(Materials Science) 2020年第1期35卷 65-70页

作者：张红娜 WU Xiaoqiang 李荣辉 Collage of Physics and Electronic Information Inner Mongolia University for the NationalitiesTongliao 028000China Collage of Mechanical Engineering Inner Mongolia University for the NationalitiesTongliao 028000China School of Gemology and Material Technology Hebei GEO UniversityShijiazhuang 050031China

Nitrogen doped multi-channel graphite was successfully prepared by using nitrogen doping and KOH etching *** three-electrode and EIS tests indicates that the etched graphite possesses lower electrochemical resistance than the pristine *** coin cell tests demonstrate that N doped multichannel graphite possesses a specific capacity of 361 mAh/g and coulombic efficiencies of 91.4%.No dramatic irreversible capacity loss results from the increased specific surface area(from 1.60 to 2.08 m^2/g),removing the need for a trade-off between irreversible capacity loss and surface *** polymer cells were fabricated and electrochemical capabilities were *** 3C fast charge protocol,the charging capacity can reach 51%within 10 min charge,and 100%within 30 min,demonstrating excellent fast charging *** fast charge cycle performance with 3C-rate charge and 1C-rate discharge from 4.35-3.0 V was conducted at RT *** capacity retention is 94%after 600 cycles,which shows good cycle performance.

关键词： nitrogen doping KOH etched fast charge graphite

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Digraph states and their neural network representations

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Chinese Physics B 2022年第6期31卷 183-191页

With the rapid development of machine learning,artificial neural networks provide a powerful tool to represent or approximate many-body quantum *** was proved that every graph state can be generated by a neural ***,we introduce digraph states and explore their neural network representations(NNRs).Based on some discussions about digraph states and neural network quantum states(NNQSs),we construct explicitly an NNR for any digraph state,implying every digraph state is an *** obtained results will provide a theoretical foundation for solving the quantum manybody problem with machine learning method whenever the wave-function is known as an unknown digraph state or it can be approximated by digraph states.

关键词： digraph state neural network quantum state representation

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Superderivation Algebras of Modular Lie Superalgebras of ■-Type

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Chinese Annals of Mathematics,Series B 2015年第3期36卷 447-466页

作者： Xiaoning XU Xiaojun LI School of Mathematics Liaoning University

The authors consider a family of finite-dimensional Lie superalgebras of C-type over an algebraically closed field of characteristic p 〉 3. It is proved that the Lie superalgebras of C-type are simple and the spanning sets are determined. Then the spanning sets are employed to characterize the superderivation algebras of these Lie superalgebras. Finally, the associative forms are discussed and a comparison is made between these Lie superalgebras and other simple Lie superalgebras of Cartan type.

关键词： Modular Lie superalgebras Z-graded Lie superalgebras Superderivationalgebras

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Regulation of pathological BBB restoration via nanostructured ROS-responsive glycolipid-like copolymer entrapping siVEGF for glioblastoma targeted therapeutics

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Nano Research 2022年第2期15卷 1455-1465页

作者： Lijuan Wen Yu Peng Kai Wang Zhihua Huang Shiying He Ruiwen Xiong Longping Wu Fengtian Zhang Fuqiang Hu National Engineering Research Center for Modernization of Tranditional Chinese Medicine-Hakka Medical Resources Branch College oj PharmacyGannan Medical UniversityGanzhou 341000China College of Pharmaceutical Sciences Zhejiang UniversityHangzhou 310058China Department of Orthopedics First Affiliated Hospital of Gannan Medical UniversityGanzhou 341000China Department of Orthopedics Second Affiliated Hospital of Soochow UniversitySuzhou 215004China Key Laboratory of Prevention and Treatment of Cardiovascular and Cerebrovascular Diseases of Ministry of Education Gannan Medical UniversityGanzhou 341000China

Glioblastoma(GBM)is one of the malignant brain tumors with high mortality and no curative *** elevated vascular endothelial growth factor(VEGF)in GBM seriously disrupts the blood brain barrier(BBB)with an increased permeability,resulting in poor outcome and *** interference has shown strong potential to inhibit VEGF expression,thus it is necessary to development an effective and safe gene delivery system possessing the ability to cross the BBB and target GBM *** study aims to explore the anti-GBM effect of angiopep-2(Ap)peptide modified reactive oxygen species(ROS)cleavable thioketal(TK)linked glycolipid-like nanocarrier(CSTKSA)delivering anti-VEGF siRNA(R),termed as Ap-CSTKSA/R *** functionalized modification produced an enhanced cellular uptake and a stronger bio-distribution of Ap-CSTKSA/R complexes in U87 MG cells and brain tumor tissues,***-CSTKSA/R complexes exhibited great superiority in GBM growth inhibition and finally translated into the longest survival period mainly via receptor-mediated targeting delivery,VEGF gene silencing accompanied with remarkable angiogenesis inhibition,and suppressed expression of caveolin-1 which is involved in BBB functional regulation in the occurrence and treatment of *** study indicated that Ap functionalization on ROS-responsive glycolipid-like copolymer exhibits a promising and effective gene delivery platform for GBM targeted treatment.

关键词： glioblastoma ROS-responsive siRNA blood brain barrier copolymer

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