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Frontiers of physics 2024年第3期19卷 115-133页

作者： Jia-Rui Li Cui jiang Han Su Di Qi Lian-Lian Zhang Wei-jiang gong College of Sciences Northeastern UniversityShenyang 110819China Basic Department Shenyang Institute of EngineeringShenyang 110136China

We concentrate on the skin effects and topological properties in the multilayer non-Hermitian Su−Schrieffer−Heeger (SSH) structure, by taking into account the nonreciprocal couplings between the different sublattices in the unit cells. Following the detailed demonstration of the theoretical method, we find that in this system, the skin effects and topological phase transitions induced by nonreciprocal couplings display the apparent parity effect, following the increase of the layer number of this SSH structure. On the one hand, the skin effect is determined by the parity of the layer number of this SSH system, as well as the parity of the band index of the bulk states. On the other hand, for the topological edge modes, such an interesting parity effect can also be observed clearly. Next, when the parameter disorders are taken into account, the zero-energy edge modes in the odd-layer structures tend to be more robust, whereas the other edge modes are easy to be destroyed. In view of these results, it can be ascertained that the findings in this work promote to understand the influences of nonreciprocal couplings on the skin effects and topological properties in the multilayer SSH lattices.

关键词： multilayer SSH lattice nonreciprocal couplings band structure skin effect

Green synthesis of luminescent La-MOF nanoparticle from waste poly(ethylene terephthalate) for high-performance in Fe(Ⅲ) detection

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Rare Metals 2024年第8期43卷 3833-3843页

作者： Zhi gong Zhi-Kui Dai Zhi-Yue Dong Qiu-Xuan Liu Valentin A.Milichko Hua-Jian Liu Jie Liu Ran Niu jiang gong Key Laboratory of Material Chemistry for Energy Conversion and Storage Hubei Key Laboratory of Material Chemistry and Service FailureHubei Engineering Research Center for Biomaterials and Medical Protective MaterialsSemiconductor Chemistry CenterSchool of Chemistry and Chemical EngineeringMinistry of EducationHuazhong University of Science and TechnologyWuhan 430074China School of Chemical Engineering and Pharmacy Wuhan Institute of TechnologyWuhan 430073China Collaborative Innovation Center for Advanced Organic Chemical Materials Co-constructed by the Province and Ministry Ministry of Education Key Laboratory for the Synthesis and Application of Organic Functional Molecules and College of Chemistry and Chemical EngineeringHubei UniversityWuhan 430062China School of Physics and Engineering ITMO UniversitySt.Petersburg197101Russia School of Materials Science and Engineering Hubei UniversityWuhan430062China Guangdong Provincial Key Laboratory of Technique and Equipment for Macromolecular Advanced Manufacturing School of Mechanical and Automotive EngineeringKey Laboratory of Polymer Processing EngineeringMinistry of EducationSouth China University of TechnologyGuangzhou 510641China

Developing luminescent metal-organic frameworks(MOFs) capable of high-efficiency Fe^(3+)sensing has aroused great attraction in the fields of biology,chemistry,***,previous solvothermal methods are limited by organic solvent usage,time consuming,high pressure,and high-energy ***,we propose the waste-toMOF strategy towards the scale-up production of La-MOF nanoparticles through the ball milling of recycled poly(-ethylene terephthalate)(PET) bottles and La(NO_(3))_(3)·_(6)H_(2)*** goes on alkaline hydrolysis to form 1,4-benzenedicarboxylic acid sodium salt(Na_(2)BDC) and ethylene glycol by ball ***,BDC reacts with La^(3+)to form *** as-prepared La-MOF crystal nanoparticles possess a rod-like morphology with the size of few hundred ***,La-MOF nanoparticles display high selectivity and sensitivity for Fe^(3+)*** quenching constant and limit of detection are 5.29×10^(3)(mol·L^(-1))^(-1) and 0.147 μmol·L^(-1),respectively,thus surpassing many advanced Fe^(3+) *** to the result of density functional theory,the high Fe^(3+) detection performance of La-MOF is related to the complexing of Fe^(3+)with La-MOF,which leads to the gradual dissociation of the coordination bond between terephthalic acid and La^(3+).It is anticipated that the mechanochemistry milling-based wasteto-MOF strategy provides a new platform for the massive production of functional MOFs in a green manner.

关键词： Metal-organic framework Waste polyester Mechanochemistry milling Fluorescence sensor

Synergism of solar-driven interfacial evaporation and photo-Fenton Cr(Ⅵ) reduction by sustainable Bi-MOF-based evaporator from waste polyester

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Journal of Energy Chemistry 2024年第7期94卷 527-540页

作者： Zifen Fan Jie Liu Huajian Liu Lijie Liu Yan She Xueying Wen Huiyue Wang Guixin Hu Ran Niu jiang gong Key Laboratory of Material Chemistry for Energy Conversion and Storage Ministry of EducationHubei Key Laboratory of Material Chemistry and Service FailureHubei Engineering Research Center for Biomaterials and Medical Protective MaterialsSemiconductor Chemistry CenterSchool of Chemistry and Chemical EngineeringHuazhong University of Science andTechnologyWuhan430074HubeiChina

The integration of interfacial solar steam generation and photocatalytic degradation technology has pro-vided a promising platform to simultaneously produce freshwater and degrade ***,con-structing low-cost,multi-functional evaporators for treating Cr(Ⅵ)-polluted water remains challenging,and the synergistic mechanism on Cr(Ⅵ)reduction is ***,we propose the combined strategy of ball milling and solution mixing for the sustainable production of Bi-MOF microrod from waste poly(ethylene terephthalate),and construct Bi-MOF-based solar evaporators for simultaneous photo-Fenton Cr(Ⅵ)reduction and freshwater ***,the evaporator comprised of Bi-MOF microrod and graphene nanosheet possesses high light absorption,efficient photothermal conversion,and good hydro-philic *** to the advantages,the hybrid evaporator exhibits the evaporation rate of 2.16 kg m^(-2) h^(-1) and evaporation efficiency of 87.5%under 1 kW m^(-2) of *** integrating with photo-Fenton reaction,the Cr(Ⅵ)reduction efficiency is 91.3%,along with the reaction kinetics of 0.0548 min^(-1),surpassing many advanced *** the outdoor freshwater production and Cr(Ⅵ)reduction,the daily accumulative water yield is 5.17 kg m^(-2) h^(-1),and the Cr(Ⅵ)reduction efficiency is 99.9%.Furthermore,we prove that the localization effect derived from the interfacial solar-driven evap-oration enhances H_(2)O_(2) activation for the photo-Fenton reduction of Cr(Ⅵ).Based on the result of density functional theory,Bi-MOF microrod provides rich active centers for H_(2)O_(2) activation to produce active sites such as e-or-O_(2).This study not only proposes a new strategy to construct multi-functional solar evaporators for freshwater production and catalytic reduction of pollutants,but also advances the chem-ical upcycling of waste polyesters.

关键词： Interfacial solar steam generation Cr(VI)reduction Photo-Fenton reaction Metal-organic framework Waste plastic upcycling

Cross section determination of^(27)Al(n,2n)^(26)Al reaction induced by 14-MeV neutrons uniting with D-T neutron activation and AMS techniques

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Nuclear Science and Techniques 2024年第6期35卷 78-89页

作者： Xian-Lin Yang Chang-Lin Lan Yu-Ting Wei Yi Zhang gong jiang Bo Xie Yu Liu Hong-Tao Shen Xiao-Jun Sun School of Nuclear Science and Technology Lanzhou UniversityLanzhou 730000China MOE Frontiers Science Center for Rare Isotopes Lanzhou UniversityLanzhou 730000China State Key Laboratory of Environmental Geochemistry Institute of GeochemistryChinese Academy of SciencesGuiyang 550081China Guangxi Key Laboratory of Nuclear Physics and Nuclear Technology Guangxi Normal UniversityGuilin 541004China

Aluminum is the primary structural material in nuclear engineering,and its cross section induced by 14-MeV neutrons is of great *** address the issue of insufficient accuracy for the^(27)Al(n,2n)^(26)Al reaction cross section,the activation method and accelerator mass spectrometry(AMS)technique were used to determine the^(27)Al(n,2n)^(26)Al cross section,which could be used as a D-T plasma ion temperature monitor in fusion *** the China Academy of Engineering Physics,neutron activation was performed using a K-400 neutron generator produced by the T(d,n)4He ***^(26)Al∕^(27)Al isotope ratios were measured using the newly installed GYIG 1 MV AMS at the Institute of Geochemistry,Chinese Academy of *** neutron flux was monitored by measuring the activity of 92mNb produced by the 93Nb(n,2n)92mNb *** measured results were compared with available data in the experimental nuclear reaction database,and the measured values showed a reasonable degree of consistency with partially available literature *** newly acquired cross-sectional data at 12 neutron energy points through systematic measurements clarified the divergence,which has two different growth trends from the existing experimental *** obtained results are also compared with the corresponding evaluated database,and the newly calculated excitation functions with TALYS−1.95 and EMPIRE−3.2 codes,the agreement with CENDL−3.2,TENDL-2021 and EMPIRE−3.2 results are generally acceptable.A substantial improvement in the knowledge of the^(27)Al(n,2n)^(26)Al reaction excitation function was obtained in the present work,which will lay the foundation for the diagnosis of the fusion ion temperature,testing of the nuclear physics model,evaluation of nuclear data,etc.

关键词： 14-MeV neutron ^(27)Al(n,2n)^(26)Al Cross section AMS

Glymphatic function and its influencing factors in different glucose metabolism states

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World Journal of Diabetes 2024年第7期15卷 1537-1550页

作者： Bin Tian Chen Zhao Jia-Li Liang Hui-Ting Zhang Yi-Fan Xu Hui-Lei Zheng Jia Zhou jiang-Nian gong Shu-Ting Lu Zi-San Zeng Department of Radiology The First Affiliated Hospital of Guangxi Medical UniversityNanning 530021Guangxi Zhuang Autonomous RegionChina Magnetic Resonance Research Collaboration Siemens HealthineersGuangzhou 510620Guangdong ProvinceChina Magnetic Resonance Research Collaboration Siemens Healthineers Ltd.Wuhan 430071Hubei ProvinceChina Department of Health Management The First Affiliated Hospital of Guangxi Medical UniversityNanning 530021Guangxi Zhuang Autonomous RegionChina Department of Endocrinology The First Affiliated Hospital of Guangxi Medical UniversityNanning 530021Guangxi Zhuang Autonomous RegionChina

BACKGROUND Dysfunction of the glymphatic system in the brain in different stages of altered glucose metabolism and its influencing factors are not well *** To investigate the function of the glymphatic system and its clinical correlates in patients with different glucose metabolism states,the present study employed diffusion tensor imaging along the perivascular space(DTI-ALPS)*** Sample size was calculated using the pwr package in R *** crosssectional study enrolled 22 patients with normal glucose metabolism(NGM),20 patients with prediabetes,and 22 patients with type 2 diabetes mellitus(T2DM).A 3.0T magnetic resonance imaging was used to evaluate the function of the glymphatic *** mini-mental state examination(MMSE)was used to assess general cognitive *** DTI-ALPS index of bilateral basal ganglia and the mean DTI-ALPS index was ***,the correlation between DTI-ALPS and clinical features was *** The left-side,right-side,and mean DTI-ALPS index in the T2DM group were significantly lower than that in the NGM *** right-side DTI-ALPS and mean DTI-ALPS index in the T2DM group were significantly lower than those in the prediabetes ***-ALPS index lateralization was not *** MMSE score in the T2DM group was significantly lower than that in the NGM and prediabetes *** controlling for sex,the left-side DTI-ALPS and mean DTI-ALPS index in the prediabetes group were positively correlated with 2-hour postprandial blood glucose level;the left-side DTI-ALPS index was negatively correlated with total cholesterol and low-density lipoprotein *** right-side DTI-ALPS and mean DTI-ALPS index were negatively correlated with the glycosylated hemoglobin level and waist-to-hip ratio in the prediabetes *** left-side,right-side,and mean DTI-ALPS index in the T2DM group were positively correlated with *** left-side and mean DTIALPS index in the T2DM group were negatively

关键词： Glymphatic system Prediabetes Type 2 diabetes mellitus Magnetic resonance imaging Diffusion tensor imaging along the perivascular space

液压支架材料表面激光熔覆Ni60高硬耐磨涂层的性能

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材料热处理学报 2024年第3期45卷 166-174页

作者：王家胜舒林森巩江涛张朝铭陕西理工大学机械工程学院陕西汉中723001 陕西省工业自动化重点实验室陕西汉中723001

为实现损伤液压支架立柱的再制造修复,采用激光熔覆技术在液压支架立柱材料27SiMn钢表面制备Ni60合金涂层。通过正交试验法研究激光工艺参数对涂层稀释率的影响规律并确定最优工艺参数。利用超景深显微镜、显微硬度计及摩擦磨损试验机... 详细信息

为实现损伤液压支架立柱的再制造修复,采用激光熔覆技术在液压支架立柱材料27SiMn钢表面制备Ni60合金涂层。通过正交试验法研究激光工艺参数对涂层稀释率的影响规律并确定最优工艺参数。利用超景深显微镜、显微硬度计及摩擦磨损试验机等分析了涂层的显微组织、硬度及耐磨性能。结果表明,影响熔覆层稀释率的因素由大到小依次为:激光功率>扫描速度>送粉速度>离焦量。以稀释率为指标的最佳工艺参数组合为A_(1)B_(3)C_(3)D_(3),即激光功率为1500 W、扫描速度为22 mm/s、离焦量为+1 mm、送粉速度为12 g/min。熔覆层整体晶粒细小均匀,涂层上部主要由等轴晶组成,中部主要由等轴晶和树枝晶组成,下部则主要由沿熔合界面生长的胞状晶及柱状晶组成。熔覆层的平均硬度值为729.5 HV0.5,是基体硬度的2.32倍,最高硬度出现在熔覆层顶部的等轴晶区,为756.9 HV0.5。熔覆层的显微硬度压痕棱边平直、四角光滑无裂纹,具有良好的韧性。熔覆层的摩擦系数明显低于基材,且稳定性好于基材,磨损量仅为基材的58%,熔覆层的磨损机制为磨粒磨损和轻微的黏着磨损。

关键词：液压支架激光熔覆 Ni60 硬度耐磨性能

股票市场冲击与原油波动率指数预测——基于时变状态转移概率模型的研究

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数学的实践与认识 2024年第6期54卷 11-22页

作者：苏乐怡乔高秀马学琨蒋龚月西南交通大学数学学院四川成都611756 上海财经大学金融学院上海200433

采用具有时变状态转移概率的波动率模型研究原油市场波动率指数(OVX)预测,并充分考虑代表股票市场冲击的已实现波动和杠杆效应所含信息.实证结果表明,具有状态转移概率的模型对OVX的预测效果优于传统的HAR类模型.特别地,加入杠杆效应的... 详细信息

采用具有时变状态转移概率的波动率模型研究原油市场波动率指数(OVX)预测,并充分考虑代表股票市场冲击的已实现波动和杠杆效应所含信息.实证结果表明,具有状态转移概率的模型对OVX的预测效果优于传统的HAR类模型.特别地,加入杠杆效应的常数状态转移概率模型对中短期的预测能力更强,而在转移概率和回归模型同时考虑杠杆效应的时变状态转移概率模型更适合长期预测.研究为我国原油衍生品市场的风险管理提供了有意义的参考。

关键词：原油波动率指数股票市场冲击时变状态转移概率模型 HAR模型杠杆效应

苦参碱减轻对乙酰氨基酚诱导小鼠肝损伤的研究

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中国临床药理学杂志 2024年第2期40卷 225-229页

作者：边亚礼杨艳双巩江华何新霞衡水市人民医院全科医学科河北衡水053000 衡水市人民医院病案科河北衡水053000

目的探讨注射用盐酸苦参碱对对乙酰氨基酚(APAP)诱导的小鼠肝损伤的作用机制。方法将雄性昆明小鼠随机分为空白组、模型组和低、中、高剂量实验组,每组12只。除空白组外其余小组均腹部注射300 mg·kg^(-1)APAP进行急性肝损伤造模。低、... 详细信息

目的探讨注射用盐酸苦参碱对对乙酰氨基酚(APAP)诱导的小鼠肝损伤的作用机制。方法将雄性昆明小鼠随机分为空白组、模型组和低、中、高剂量实验组,每组12只。除空白组外其余小组均腹部注射300 mg·kg^(-1)APAP进行急性肝损伤造模。低、中、高剂量实验组分别静脉注射0.7、1.4和2.8 mg·kg^(-1)苦参碱;空白组和模型组均尾部静脉注射10%葡萄糖溶液10 mL·kg^(-1)·d^(-1)。5组小鼠均治疗7 d。用酶联免疫吸附试验法检测谷草转氨酶(GOT)、谷丙转氨酶(GPT)、白细胞介素-6(IL-6)和肿瘤坏死因子-α(TNF-α)水平,用试剂盒检测肝组织中超氧化物歧化酶(SOD)和丙二醛(MDA)的水平。结果中、高剂量实验组和模型组、空白组的血清GOT分别为(5593.45±128.46)、(2316.24±125.37)、(8302.16±267.15)和(40.13±7.69)U·L^(-1),GPT分别为(6159.37±129.64)、(2597.10±120.37)、(81699.54±259.87)和(36.47±9.46)U·L^(-1),IL-6分别为(159.43±26.42)、(96.37±25.84)、(215.34±47.68)和(83.72±26.37)pg·mL^(-1),TNF-α分别为(327.68±38.37)、(249.69±44.97)、(477.68±58.59)和(254.35±50.67)pg·mL^(-1),SOD分别为(329.46±37.49)、(371.16±33.76)、(246.84±38.79)和(429.67±23.76)U·mg^(-1),MDA分别为(5.34±0.76)、(4.09±0.54)、(12.46±3.76)和(3.12±0.42)nmol·mg^(-1)。中、高剂量实验组的上述指标与模型组比较,在统计学上差异均有统计学意义(均P<0.05)。结论苦参碱对APAP诱导的药物性肝损伤具有显著的保护作用,其保护机制与抑制炎症反应和减轻氧化应激反应有关。

关键词：苦参碱对乙酰氨基酚药物性肝损伤炎症反应氧化应激反应

Visible light triggered exfoliation of COF micro/nanomotors for efficient photocatalysis

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Green Energy & Environment 2023年第2期8卷 567-578页

作者： Kai Feng Liang Zhang jiang gong Jinping Qu Ran Niu Key Laboratory of Material Chemistry for Energy Conversion and Storage Ministry of EducationHubei Key Laboratory of Material Chemistry and Service FailureHubei Engineering Research Center for Biomaterials and Medical Protective MaterialsSchool of Chemistry and Chemical EngineeringHuazhong University of Science and TechnologyWuhan430074China The State Key Laboratory Breeding Base of Basic Science of Stomatology(Hubei-MOST)&Key Laboratory of Oral Biomedicine Ministry of Education School and Hospital of StomatologyWuhan UniversityWuhan 430079China National Engineering Research Center of Novel Equipment for Polymer Processing Key Laboratory of Polymer Processing EngineeringMinistry of EducationGuangdong Provincial Key Laboratory of Technique and Equipment for Macromolecular Advanced ManufacturingSchool of Mechanical and Automotive EngineeringSouth China University of TechnologyGuangzhou510641China

We report a new facile light-induced strategy to disperse micron-sized aggregated bulk covalent organic frameworks(COFs)into isolated COFs *** was achieved by a series of metal-coordinated COFs,namely COF-909-Cu,-Co or-Fe,where for the first time the diffusio-phoretic propulsion was utilized to design COF-based micro/*** mechanism studies revealed that the metal ions decorated in the COF-909 backbone could promote the separation of electron and holes and trigger the production of sufficient ionic and reactive oxygen species under visible light *** this way,strong light-induced self-diffusiophoretic effect is achieved,resulting in good dispersion of *** them,COF-909-Fe showed the highest dispersion performance,along with a drastic decrease in particle size from 5μm to500 nm,within only 30 min light irradiation,which is inaccessible by using traditional magnetic stirring or ultrasonication *** importantly,benefiting from the outstanding dispersion efficiency,COF-909-Fe micro/nanomotors were demonstrated to be efficient in photocatalytic degradation of tetracycline,about 8 times faster than using traditional magnetic stirring *** work opens up a new avenue to prepare isolated nanosized COFs in a high-fast,simple,and green manner.

关键词： Micro/nanomotor COFs Exfoliation Nanocatalyst Photocatalysis

Poly(ionic liquid)-crosslinked graphene oxide/carbon nanotube membranes as efficient solar steam generators

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Green Energy & Environment 2023年第1期8卷 151-162页

作者： jiangjin Han Zhiyue Dong Liang Hao jiang gong Qiang Zhao Key Laboratory of Material Chemistry for Energy Conversion and Storage Ministry of EducationHubei Key Laboratory of Material Chemistry and Service FailureHubei Engineering Research Center for Biomaterials and Medical Protective MaterialsSchool of Chemistry and Chemical EngineeringHuazhong University of Science and TechnologyWuhan430074China Hubei Collaborative Innovation Center for Advanced Chemical Materials Ministry of Education Key Laboratory for the Synthesis and Application of Organic Functional Molecules and College of Chemistry and Chemical EngineeringHubei UniversityWuhan430062China

Graphene oxide(GO)is regarded as a promising candidate to construct solar absorbers for addressing freshwater crisis,but the easy delamination of GO in water poses a critical challenge for practical solar ***,we improve the stability of GO membranes by a self-crosslinking poly(ionic liquid)(PIL)in a mild condition,which crosslinks neighbouring GO nanosheets without blemishing the hydrophilic structure of *** further adding carbon nanotubes(CNTs),the sandwiched GO/CNT@PIL(GCP)membrane displays a good stability in pH=1 or 13 solution even for 270 *** molecular dynamics simulation results indicate that the generation of water nanofluidics in nanochannels of GO nanosheets remarkably reduces the water evaporation enthalpy in GCP membrane,compared to bulk ***,the GCP membrane exhibits a high evaporation rate(1.87 kg m^(-2)h^(-1))and displays stable evaporation rates for 14 h under 1 kW m^(-2)*** GCP membrane additionally works very well when using different water sources(e.g.,dye-polluted water)or even strong acidic solution(pH=1)or basic solution(pH=13).More importantly,through bundling pluralities of GCP membrane,an efficient solar desalination device is developed to produce drinkable water from *** average daily drinkable water amount in sunny day is 10.1 kg m^(-2),which meets with the daily drinkable water needs of five *** high evaporation rate,long-time durability and good scalability make the GCP membrane an outstanding candidate for practical solar seawater desalination.

关键词： Solar energy Graphene oxide Poly(ionic liquid)s Solar steam generation Wastewater treatment