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Chinese Physics Letters 2020年第8期37卷 130-135页

作者： jin Yang jian Li Liangzhong Lin jia-ji zhu School of Science and Laboratory of Quantum Information Technology Chongqing University of Posts and TelecommunicationsChongqing 400065China School of Information Engineering Zhongshan PolytechnicZhongshan 528400China

We present a theory of both the itinerant carrier-mediated RKKY interaction and the virtual excitations-mediated Bloembergen–Rowland(BR)interaction between magnetic moments in graphene induced by proximity effect with a ferromagnetic *** is shown that the RKKY/BR interaction consists of the Heisenberg,Ising,and Dzyaloshinskii–Moriya(DM)*** the case of the nearest distance,we estimate the DM term from the RKKY/BR interaction is about$0.13$meV for the graphene/Co interface,which is consistent with the experimental result of DM interaction$0.16\pm0.05$*** calculations indicate that the intralayer RKKY/BR interaction may be a possible physical origin of the DM interaction in the graphene-ferromagnet *** work provides a new perspective to comprehend the DM interaction in graphene/ferromagnet systems.

关键词： film. interaction RKKY

Anisotropic plasmon dispersion and damping in multilayer 8-Pmmn borophene structures

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Chinese Physics B 2022年第11期31卷 510-514页

作者： Kejian Liu jian Li Qing-Xu Li jia-ji zhu School of Science Chongqing University of Posts and TelecommunicationsChongqing 400065China Institute for Advanced Sciences Chongqing University of Posts and TelecommunicationsChongqing 400065China Southwest Center for Theoretical Physics Chongqing UniversityChongqing 401331China

We investigate the collective plasma oscillations theoretically in multilayer 8-Pmmn borophene structures,where the tilted Dirac electrons in spatially separated layers are coupled via the Coulomb *** calculate the energy dispersions and Landau dampings of the multilayer plasmon excitations as a function of the total number of layers,the interlayer separation,and the different *** multilayer graphene,the plasmon spectrum in multilayer borophene consists of one in-phase optical mode and N-1 out-of-phase acoustical *** show that the plasmon modes possess kinks at the boundary of the interband single-particle continuum and the apparent anisotropic *** the plasmon modes approach the same dispersion at a sufficiently large interlayer spacing in the short-wavelength *** along specific orientations,the optical mode could touch an energy maximum in the nondamping region,which shows non-monotonous *** work provides an understanding of the multilayer borophene plasmon and may pave the way for multilayer borophene-based plasmonic devices.

关键词： plasmon 8-Pmmn borophene multilayer two-dimensional materials

A Construction of Authentication Codes with Arbitration from Vector Spaces over Finite Fields

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Journal of Mathematical Research and Exposition 2011年第2期31卷 269-278页

作者： Wei jia LI ji zhu NAN School of Mathematical Sciences Dalian University of Technology Liaoning 116024 P. R. China

This paper is devoted to constructing an authentication code with arbitration using subspaces of vector spaces over finite ***,if we choose the encoding rules of the transmitter and the decoding rules of the receiver according to a uniform probability distribution,then some parameters and the probabilities of successful attacks are computed.

关键词： authentication code with arbitration vector space finite field

Self-Supervised Graph Neural Networks for Accurate Prediction of Néel Temperature

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Chinese Physics Letters 2022年第6期39卷 5-11页

作者： jian-Gang Kong Qing-Xu Li jian Li Yu Liu jia-ji zhu School of Science Chongqing University of Posts and TelecommunicationsChongqing 400065China Institute for Advanced Sciences Chongqing University of Posts and TelecommunicationsChongqing 400065China Southwest Center for Theoretical Physics Chongqing UniversityChongqing 401331China Inspur Electronic Information Industry Co. LtdBeijing 100085China

Antiferromagnetic materials are exciting quantum materials with rich physics and great potential for *** the other hand, an accurate and efficient theoretical method is highly demanded for determining critical transition temperatures, Néel temperatures, of antiferromagnetic materials. The powerful graph neural networks(GNNs) that succeed in predicting material properties lose their advantage in predicting magnetic properties due to the small dataset of magnetic materials, while conventional machine learning models heavily depend on the quality of material descriptors. We propose a new strategy to extract high-level material representations by utilizing self-supervised training of GNNs on large-scale unlabeled datasets. According to the dimensional reduction analysis, we find that the learned knowledge about elements and magnetism transfers to the generated atomic vector representations. Compared with popular manually constructed descriptors and crystal graph convolutional neural networks, self-supervised material representations can help us to obtain a more accurate and efficient model for Néel temperatures, and the trained model can successfully predict high Néel temperature antiferromagnetic materials. Our self-supervised GNN may serve as a universal pre-training framework for various material properties.

关键词： utilizing networks neural

RKKY interaction in helical higher-order topological insulators

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Chinese Physics B 2024年第7期33卷 587-593页

作者：金莎李健李清旭朱家骥 School of Science Chongqing University of Posts and TelecommunicationsChongqing 400065China Institute for Advanced Sciences Chongqing University of Posts and TelecommunicationsChongqing 400065China Southwest Center for Theoretical Physics Chongqing UniversityChongqing 401331Chin

We theoretically investigate the Ruderman–Kittel–Kasuya–Yosida(RKKY) interaction in helical higher-order topological insulators(HOTIs), revealing distinct behaviors mediated by hinge and Dirac-type bulk carriers. Our findings show that hinge-mediated interactions consist of Heisenberg, Ising, and Dzyaloshinskii–Moriya(DM) terms, exhibiting a decay with impurity spacing z and oscillations with Fermi energy εF. These interactions demonstrate ferromagnetic behaviors for the Heisenberg and Ising terms and alternating behavior for the DM term. In contrast, bulk-mediated interactions include Heisenberg, twisted Ising, and DM terms, with a conventional cubic oscillating decay. This study highlights the nuanced interplay between hinge and bulk RKKY interactions in HOTIs, offering insights into designs of next-generation quantum devices based on HOTIs.

关键词： magnetic impurity interactions magnetic ordering spintronics topological phases

Serum HBV DNA level at week 24 as a proper predictor for the effect of 2-year lamivudine treatment

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Chinese Medical Journal 2011年第8期124卷 1257-1260页

作者： ZHENG Qi jiaNG jia-ji CHEN jing zhu Yue-yong LIU Yu-rui CHEN You-tao Center of Liver Diseases First Affiliated Hospital of FujianMedical University Fuzhou Fujian 350004 China

Background Lamivudine is the first L-nucleoside analogue approved for the treatment of the patients with chronic hepatitis B （CHB） for over 10 years. The aim of this study was to evaluate the virologic responses at weeks 12 and 24 for the prediction of therapeutic effect and virologic breakthrough after 2 years of lamivudine treatment in the patients with *** A retrospective study was conducted with 255 hepatitis B e antigen （HBeAg） positive and 122HBeAg-negative CHB patients treated with lamivudine （100 mg, daily） and duration of treatment was 6 to 72 months. The levels of serum hepatitis B virus （HBV）-DNA at weeks 12 and 24 were evaluated for the predictive value of therapeutic effect and drug resistance after 2 years of lamivudine *** HBeAg seroconversion was closely correlated with levels of serum HBV DNA at week 12 （P=0.000, OR=0.394）and 24 （P=0.019, OR=0.442）, while virologic breakthrough was more correlated with baseline levels of serum HBV DNA （P=0.019, OR=1.484） and at week 12 （P=0.049, OR=1.398） and 24 （P=0.012, OR2.025）. At year 2, the virologic response at week 24 was more sensitive compared with week 12 when it was used to predict the efficacy and virologic breakthrough, but was less specific compared with those at week 12. There were no significant differences in terms of predicting positive and negative values of HBV DNA between week 12 and 24 for efficacy and drug resistance at year 2 in both HBeAg positive and HBeAg negative *** Level of serum HBV DNA at 24-week is a proper predictor for the therapeutic effect and virologic breakthrough at year 2 of lamivudine treatment.

关键词： chronic hepatitis B lamivudine hepatitis B virus DNA drug resistance predictor

Multi-twinned gold nanoparticles with tensile surface steps for efficient electrocatalytic COreduction

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Science China Chemistry 2022年

作者： Li-Wei Chen Yu-Chen Hao jia-Ni Li Lin-Yu Hu Yu Guo Shuai Li Di Liu Zhe-jia-ji zhu Si-Qian Wu Hui-Zi Huang An-Xiang Yin Bo Wang Ya-Wen Zhang Ministry of Education Key Laboratory of Cluster Science Beijing Key Laboratory of Photoelectronic/Electrophotonic Conversion MaterialsAdvanced Technology Research Institute (Jinan) School of Chemistry and Chemical Engineering Beijing Institute of Technology Beijing National Laboratory for Molecular Sciences State Key Laboratory of Rare Earth Materials Chemistry and Applications PKU-HKU Joint Laboratory in Rare Earth Materials and Bioinorganic Chemistry College of Chemistry and Molecular Engineering Peking University

COreduction reactions (CORR) powered by renewable electricity can directly convert COto hydrocarbons and fix the intermittent sustainable energy in portable chemical *** is of great importance to develop advanced catalysts that can boost CORR with high activity,selectivity,and efficiency at low ***,we report the solution synthesis using HOto modify the surface structures of gold multi-twinned nanoparticles (AuMPs) and create tensile surface *** predicted significantly enhanced COadsorption and boosted CORR capabilities with inhibited hydrogen evolution reaction activity for the tensile surface steps with modified electronic *** HO-treated AuMPs with surface steps and 3.83%tensile lattices showed much higher activity and selectivity at lower overpotentials for CORR than pristine gold *** CO-production current density reached about 98 mA cmwith a Faradaic efficiency of 95.7%at–0.30 V versus reversible hydrogen electrode in the flow cell,showing a half-cell energy efficiency as high as～83%.Our strategy represents a rational catalyst design by engineering the surface structures of metal nanoparticles and may find more applicability in future electrocatalysis.

关键词：

中国健康志愿者口服福辛普利的药代动力学研究

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药学学报 2000年第8期35卷 601-604页

作者：李文彦计家珠郭继芬张逸凡钟大放上海市闸北区中心医院药剂科上海200070 沈阳药科大学药物代谢实验室辽宁沈阳110015

目的　研究中国健康志愿者 po福辛普利后的药代动力学。方法　 10名男性健康受试者 po福辛普利 2 0mg后 ,用LC/MS/MS法测定不同时间血浆中活性代谢物福辛普利拉浓度 ,SRM方式选择性检测待测物的特征碎片离子 ,full scanms2 方式检测内... 详细信息

目的　研究中国健康志愿者 po福辛普利后的药代动力学。方法　 10名男性健康受试者 po福辛普利 2 0mg后 ,用LC/MS/MS法测定不同时间血浆中活性代谢物福辛普利拉浓度 ,SRM方式选择性检测待测物的特征碎片离子 ,full scanms2 方式检测内标物的碎片离子。结果　本法线性良好 ,精密度、准确度、回收率均符合要求。测得的主要药代动力学参数为 :T1/2 =(6 6± 1 2 )h ,Tmax=(3 7± 1 1)h ,Cmax=(45 1 9± 2 5 1 2 )ng·mL-1,AUC0 -∞ =(35 78 4± 2 2 31 2 )h·ng·mL-1。结论　本实验测得的Tmax,Cmax和AUC0 -∞ 均高于文献报道的白人受试者的参数值 ,而T1/2 显著低于文献值。

关键词：福辛普利 LC/MS/MS法药代动力学

Decreased levels of phosphorylated synuclein in plasma are correlated with poststroke cognitive impairment

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Neural Regeneration Research 2025年第9期20卷 2598-2610页

作者： Yi Wang Yuning Li Yakun Gu Wei Ma Yuying Guan Mengyuan Guo Qianqian Shao Xunming ji jia Liu Department of Clinical Laboratory Beijing Bo’ai HospitalChina Rehabilitation Research CenterCapital Medical UniversityBeijingChina Beijing Institute of Brain Disorders Laboratory of Brain DisordersMinistry of Science and TechnologyCollaborative Innovation Center for Brain DisordersBeijing Advanced Innovation Center for Big Data-based Precision MedicineCapital Medical UniversityBeijingChina Department of Neurosurgery Xuanwu HospitalCapital Medical UniversityBeijingChina

Poststro ke cognitive impairment is a major secondary effect of ischemic stroke in many patients;however,few options are available for the early diagnosis and treatment of this *** aims of this study were to(1)determine the specific relationship between hypoxic andα-synuclein during the occur of poststroke cognitive impairment and(2)assess whether the serum phosphorylatedα-synuclein level can be used as a biomarker for poststro ke cognitive *** found that the phosphorylatedα-synuclein level was significantly increased and showed pathological aggregation around the cerebral infa rct area in a mouse model of ischemic *** addition,neuronalα-synuclein phosphorylation and aggregation were observed in the brain tissue of mice subjected to chronic hypoxia,suggesting that hypoxia is the underlying cause ofα-synuclein-mediated pathology in the brains of mice with ischemic *** phosphorylatedα-synuclein levels in patients with ischemic stroke were significantly lower than those in healt hy subjects,and were positively correlated with cognition levels in patients with ischemic ***,a decrease in serum high-density lipoprotein levels in stroke patie nts was significantly correlated with a decrease in phosphorylatedα-synuclein *** ischemic stroke mice did not show significant cognitive impairment or disrupted lipid metabolism 14 days after injury,some of them exhibited decreased cognitive function and reduced phosphorylatedα-synuclein *** together,our results suggest that serum phosphorylatedα-synuclein is a potential biomarker for poststroke cognitive impairment.

关键词： biomarker high-density lipoprotein ischemic stroke phosphorylatedα-synuclein poststroke cognitive impairment

Feasible synthesis of porous h-BN by Mg^(2+)induced lattice dislocations for hydrogen and ammonia storage

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Nano Research 2025年第1期18卷 94-99页

作者： Xiaojia Huang Zihao Wang Yihan Kong Li jiang Baolin Wang jiangtao jia Heping Ma Guangshan zhu Key Laboratory of Polyoxometalate and Reticular Material Chemistry of Ministry of Education Northeast Normal UniversityChangchun 130024China School of Chemical Engineering and Technology Xi’an jiaotong University Xi’an 710049China

Hexagonal boron nitride(h-BN)is a two-dimensional(2D)layered material with a structure similar to graphite and it has potential as a hydrogen and ammonia storage ***,dense packing in the standard h-BN structure limits its surface area and prevents the B and N from being adsorption *** this study,the addition of Mg^(2+)during h-BN synthesis facilitated the growth of lattice dislocations and led to a crosslinked three-dimensional(3D)porous structure.A proposed formation mechanism for porous h-BN was confirmed by several characterization routes,most clearly by high-resolution transmission electron microscopy(HRTEM).Porous Mg/BNs exhibited high H_(2)and NH_(3)uptakes and showed potential for H_(2)and NH_(3)storage.

关键词： hexagonal boron nitride porous material dislocation gas storage