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Accumulation of Zinc, Cadmium, and Lead in Four Populations of Sedum alfredii Growing on Lead/Zinc Mine Spoils

Journal of Integrative Plant Biology 2008年第6期50卷 691-698页

作者： dong-mei deng Jin-Chuan deng Jin-Tian Li Jun Zhang Min Hu Zhou Lin Bin Liao School of Life Sciences and State Key Laboratory of Biocontrol Sun Yat-sen University Guangzhou 510275 China Department of Biological and Chemical Engineering Guangxi University of Technology Liuzhou 545006 China Department of Environmental Science and Engineering Zhongkai Agrotechnical College Guangzhou 510225 China

Sedum alfredii Hance is a newly reported zinc （Zn） and cadmium （Cd） hyperaccumulator native to China. In this study, four populations of S. alfredii were collected from Yejiwei （YJW）, Jinchuantang （JCT） and Qiaokou （QK） lead （Pb）lZn mines located in Hunan Province as well as Quzhou （QZ） PblZn mine located in Zhejiang Province for exploring the intraspecies difference of this plant in metal accumulation. Although they grew in the PblZn spoils with relatively similar levels of Zn, Cd and Pb, remarkable differences among the four populations in tissue heavy metal concentrations were observed. The shoot Zn concentration of QZ population （11 116mglkg） was highest and nearly five times higher than that of the JCT population （1 930 mg/kg）. Furthermore, the shoot Cd concentration observed in the QZ population （1 090 mg/kg） was also highest and 144 times higher than that found in the JCT population （7.5 mg/kg）. As for Pb concentrations in the shoot of different populations, a fourfold difference between the highest and the lowest was also found. Such difference on metal accumulation was population-specific and may be significantly explained by differences in the soil properties such as pH, organic matter （OM）, and electrical conductivity （EC）. Taking biomass and metal concentration in plants into consideration, the QZ, YJW and QK populations may have high potential for Zn phytoremediation, the QZ population may have the highest potential in Cd phytoremediation, and the QK population may be the most useful in Pb phytoremediation.

关键词： heavy metal hyperaccumulation phytoremediation population Sedum alfredii

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Nonlocal effect on resonant radiation force exerted on semiconductor coupled quantum well nanostructures

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Chinese Physics B 2019年第6期28卷 349-356页

作者： Jin-Ke Zhang Ting-Ting Zhang Yu-Liang Zhang Guang-Hui Wang dong-mei deng Guangzhou Key Laboratory for Special Fiber Photonic Devices South China Normal UniversityGuangzhou 510006China Guangdong Provincial Key Laboratory of Nanophotonic Functional Materials and Devices South China Normal UniversityGuangzhou 510006China

Based on the microscopic nonlocal optical response theory, the resonant radiation force exerted on a semiconductorcoupled quantum well nanostructure(CQWN), induced by the nonlocal interaction between lasers and electrons in conduction bands, is investigated for two different polarized states. The numerical results show that the spatial nonlocality of optical response can cause a radiation shift(blue-shift) for the spectrum of the resonant radiation force, which is dependent on the CQWN width ratio, the barrier height, and polarized states sensitively. It is also confirmed that the resonant radiation force is steerable by the incident and polarized directions of incident light. This work may provide an advantageous method for detecting internal quantum properties of nanostructures, and open novel and raising possibilities for optical manipulation of nano-objects using laser-induced radiation force.

关键词： nonlocal effect resonant radiation force coupled quantum well

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Fungal mycobiome-mediated immune response:a non-negligible promoter in pancreatic oncogenesis and chemoresistance

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Cancer Drug Resistance 2023年第2期6卷 284-290页

作者： Yaling Jiang Valentina Donati Godefridus J.Peters Elisa Giovannetti dong mei deng Department of Preventive Dentistry Academic Center for Dentistry Amsterdam(ACTA)University of Amsterdam and Vrije Universiteit AmsterdamAmsterdam 1081 LANetherlands Department of Medical Oncology Amsterdam University Medical Centerslocation VUMCVrije Universiteit AmsterdamAmsterdam 1081 HVNetherlands Unit of Pathological Anatomy 2 Azienda Ospedaliero-Universitaria PisanaPisa 56100Italy Department of Biochemistry Medical University of GdanskGdansk 80-210Poland Fondazione Pisana per la Scienza ONLUS San Giuliano TermePisa 56017Italy

Pancreatic ductal adenocarcinoma(PDAC)is one of the most lethal cancers in humans due to late diagnosis and poor response to *** tumor microenvironment(TME)of PDAC is characterized by a distinctive,suppressive immune profile,which inhibits the protective functions of anti-tumor immunity and thereby contributes to PDAC ***,the study of Alam et *** for the first time that the intratumoral fungal mycobiome could contribute to the recruitment and activation of type 2 immune cells in the TME of PDAC via enhancing the secretion of a chemoattractant,interleukin(IL-)*** this article,we reviewed the important findings of this *** with our findings,we synthetically discussed the role of the fungal mycobiome in orchestrating the immune response and thereby modulating tumor progression.

关键词： Mycobiome pancreatic cancer chemoresistance interleukin 33 type 2 immune cells

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Adjuvant Chemotherapy May Not Be Necessary for Women with Stage IC1 Epithelial Ovarian Cancer

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Current Medical Science 2022年第1期42卷 192-200页

作者： dong-mei deng Qiu-yue LIAO Jie YANG Jing CHEN Ge CHEN Hua-lin BAI Bo ZHANG Ke-zhen LI Department of Gynecology and Obstetrics Tongji HospitalTongji Medical CollegeHuazhong University of Science and TechnologyWuhan 430030China

Objective:To determine whether adjuvant chemotherapy improves the prognoses in women with stage IC1 epithelial ovarian cancer(EOC).Methods:All eligible women diagnosed with stage IC1 EOC from 2003 to 2019 in Tongji Hospital were *** characteristics,tumor features,surgical types,and chemotherapeutic treatments were ***-meier analysis and Cox regression analysis were performed to evaluate progression-free survival(PFS)and overall survival(OS).

关键词： adjuvant chemotherapy epithelial ovarian cancer intraoperative rupture overall survival progression-free survival

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Engineered photonic spin Hall effect of Gaussian beam in antisymmetric parity-time metamaterials

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Chinese Physics B 2023年第9期32卷 255-260页

作者：刘露遥冯振校邓冬梅王光辉 Guangdong Provincial Key Laboratory of Nanophotonic Functional Materials and Devices South China Normal UniversityGuangzhou 510006China Guangzhou Key Laboratory for Special Fiber Photonic Devices South China Normal UniversityGuangzhou 510006China

A model of the photonic spin Hall effect(PSHE)in antisymmetric parity-time(APT)metamaterials with incidence of Gaussian beams is proposed *** derive the displacement expression of the PSHE in APT metamaterials based on the transport properties of Gaussian beams in positive and negative refractive index ***,detailed discussions are provided on the APT scattering matrix,eigenstate ratio,and response near exceptional points in the case of loss or *** contrast to the unidirectional non-reflection in parity-time(PT)symmetric systems,the transverse shift that arises from both sides of the APT structure is *** effectively adjusting the parameters of APT materials,we achieve giant displacements of the transverse ***,we present a multi-layer APT structure consisting of alternating left-handed and right-handed *** increasing the number of layers,Bragg oscillations can be generated,leading to an increase in resonant peaks in transverse *** study presents a new approach to achieving giant transverse shifts in the APT *** lays a theoretical foundation for the fabrication of related nano-optical devices.

关键词： antisymmetric parity-time photonic spin Hall effect Gaussian beam

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Microstructural evolution during the progressive transformation-induced plasticity effect in a Fe-0.1C-5Mnmedium manganese steel

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International Journal of Minerals,Metallurgy and Materials 2025年第2期32卷 369-379页

作者： mei Zhang Wenhao Li Yangfei Chen Yang Jiang Xiaofei Guo Han dong School of Materials Science and Engineering Shanghai UniversityShanghai 200444China State Key Laboratory of Advanced Special Steel Shanghai UniversityShanghai 200444China

The microstructural evolution of a cold-rolled and intercritical annealed medium-Mn steel(Fe-0.10C-5Mn)was investigated during uniaxial tensile ***-situ observations under scanning electron microscopy,transmission electron microscopy,and X-ray diffraction analysis were conducted to characterize the progressive transformation-induced plasticity process and associated fracture initiation *** findings were discussed with the local strain measurements via digital image *** results indicated that Lüders band formation in the steel was limited to 1.5%strain,which was mainly due to the early-stage martensitic phase transformation of a very small amount of the less stable large-sized retained austenite(RA),which led to localized stress concentrations and strain hardening and further retardation of *** small-sized RA exhibited high stability and progressively transformed into martensite and contributed to a stably extended Portevin-Le Chatelier *** volume fraction of RA gradually decreased from 26.8%to 8.2%prior to *** the late deformation stage,fracture initiation primarily occurred at the austenite/martensite and ferrite/martensite interfaces and the ferrite phase.

关键词： medium-Mn steel retained austenite progressive transformation-induced plasticity effect local strain fracture initiation

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Graphene Aerogel Composites with Self‑Organized Nanowires‑Packed Honeycomb Structure for Highly Efficient Electromagnetic Wave Absorption

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Nano-Micro Letters 2025年第2期17卷 533-547页

作者： Xiao You Huiying Ouyang Ruixiang deng Qiuqi Zhang Zhenzhong Xing Xiaowu Chen Qingliang Shan Jinshan Yang Shaoming dong State Key Laboratory of High Performance Ceramics and Superfine Microstructure Shanghai Institute of CeramicsChinese Academy of SciencesShanghai 200050People’s Republic of China Key Laboratory of Inorganic Coating Materials CAS Shanghai Institute of CeramicsChinese Academy of SciencesShanghai 200050People’s Republic of China Structural Ceramics and Composites Engineering Research Center Shanghai Institute of CeramicsChinese Academy of SciencesShanghai 200050People’s Republic of China Center of Materials Science and Optoelectronics Engineering University of Chinese Academy of SciencesBeijing 100049People’s Republic of China School of Physical Science and Technology ShanghaiTech UniversityShanghai 201210People’s Republic of China School of Materials Science and Engineering Zhejiang Sci-Tech UniversityHangzhou 310018People’s Republic of China University of Chinese Academy of Sciences Beijing 100039People’s Republic of China

With vigorous developments in nanotechnology,the elaborate regulation of microstructure shows attractive potential in the design of electromagnetic wave ***,a hierarchical porous structure and composite heterogeneous interface are constructed successfully to optimize the electromagnetic loss *** macro–micro-synergistic graphene aerogel formed by the ice template‑assisted 3D printing strategy is cut by silicon carbide nanowires(SiC_(nws))grown in situ,while boron nitride(BN)interfacial structure is introduced on graphene *** unique composite structure forces multiple scattering of incident EMWs,ensuring the combined effects of interfacial polarization,conduction networks,and magnetic-dielectric ***,the as-prepared composites present a minimum reflection loss value of−37.8 dB and a wide effective absorption bandwidth(EAB)of 9.2 GHz(from 8.8 to 18.0 GHz)at 2.5 ***,relying on the intrinsic high-temperature resistance of SiC_(nws) and BN,the EAB also remains above 5.0 GHz after annealing in air environment at 600℃ for 10 h.

关键词： Hierarchical porous structure Interface High-temperature resistance Graphene aerogel composites Electromagnetic wave absorption

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从心智解读的源监控看《红楼梦》中的不可靠叙述

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湖南科技大学学报（社会科学版） 2017年第2期20卷 134-138页

作者：曾冬梅邓云华邵阳学院外语系湖南邵阳422000 湖南师范大学外国语学院湖南长沙410081

记录和追踪表征源的能力就是一种跟我们心智解读能力紧密相关的认知禀赋。从心智解读中的源监控出发,实例分析《红楼梦》中的不可靠叙述。在极不可靠到具有权威性的完全可靠的这条轴线上,叙述者的不可靠在极不可靠、具有有限特权的不可... 详细信息

记录和追踪表征源的能力就是一种跟我们心智解读能力紧密相关的认知禀赋。从心智解读中的源监控出发,实例分析《红楼梦》中的不可靠叙述。在极不可靠到具有权威性的完全可靠的这条轴线上,叙述者的不可靠在极不可靠、具有有限特权的不可靠和以可靠叙述为目的的不可靠之间徘徊。不可预测性和信息处理认知系统不可避免的规范性之间的互动,使作者以各种各样的方式玩弄着我们的心智,也正是这种互动才保证小说游戏千百年来得以发扬光大。从心智解读的源监控分析《红楼梦》中的不可靠叙述无疑有力地论证了西方认知叙事学理论运用于中国叙事文本的可行性。

关键词：源监控《红楼梦》不可靠叙述

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Propagating subduction initiation of the Caroline Plate at the Mussau Trench

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Science China Earth Sciences 2025年第1期68卷 253-269页

作者： Chun-Feng LI Yongkang deng Tao WU dongdong dong Guoliang ZHANG Jiazheng ZHANG Yutao LIU Yaqing LI Fugui TANG Lulu ZHANG Department of Marine Sciences Zhejiang University Laboratory of Marine Mineral Resources Laoshan Laboratory Key Lab of Marine Geology and Environment Institute of Oceanology Chinese Academy of Sciences Key Lab of Ocean and Marginal Sea Geology South China Sea Institute of Oceanology Chinese Academy of Sciences Science & Technology on Integrated Information System Lab Institute of Software Chinese Academy of Sciences

New seismic imaging from the Mussau Trench confirms that, under horizontal compression on an oceanic plate boundary, it is within the young and weak oceanic plate that a trench will develop, and it is the young plate, not so long after its birth, that starts to subduct toward the old plate. The Mesozoic Pacific Plate cannot easily bend, under the joint horizontal compression and vertical gravity pull, even with a pre-existing weak zone in place and with a large age offset across the plate boundary. The bending of the Caroline Plate near the northern end of the Mussau Trench started only after a long-time span of trench migration, and/or after a prolonged transition from initial compression to trench development. Highly contrasting trench deformation and sedimentary accretion between two parallel seismic sections support an evident migration of underthrusting or significant longitudinal heterogeneity along the trench. The swift transition from underthrusting to non-thrusting can be explained by a counter-clockwise rotation of the Caroline Plate. That miniature accretionary wedges develop even before the subduction initiates imply strong compression and uplifting before the underthrusting can kick-start. Rotation of the Caroline Plate have been halted as the Mussau Trench is seismically rather quiet and the Lyra Trough to the east shows relaxational extension.

关键词： Mussau Trench Subduction initiation Seismic reflection Caroline Plate

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The composition of magmatic-hydrothermal fluids and their related metal mineralization

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Science China Earth Sciences 2025年第1期68卷 208-225页

作者： Qihai SHU Jun deng State Key Laboratory of Geological Processes and Mineral Resources School of Earth Sciences and Resources China University of Geosciences Frontiers Science Center for Deep-time Digital Earth China University of Geosciences

Magmatic hydrothermal deposits are important sources of many bulk, precious, and rare metals, and have attracted interest from both academic and industrial communities. However, it is still unclear if the major enrichment of the ore-forming metals occurs in the parental magma source region, during the magma evolution, or after the fluid exsolution. Fluid inclusions trapped in hydrothermal minerals crystallized in the early, high-temperature stage before metal precipitation record information close to that of the initially exsolved magmatic fluids, which are helpful in revealing whether the metals have been already significantly enriched prior to the hydrothermal stage. In this study, available compositional data of such early-stage fluid inclusions from magmatic hydrothermal systems globally have been compiled. The results indicate that the concentrations of Cu,Sn, and W respectively from the Cu-, Sn-, and W-mineralized fluids are significantly higher than the hydrothermal systems that do not produce ores with the corresponding metals. This suggests that Cu, Sn, and W could have already been enriched in the magma source and/or magma evolution stage. The Mo concentrations show no difference between Mo-mineralized and Mobarren fluid systems, indicating no significant pre-enrichment in the source region or during the magma evolution. This also implies that an efficient collection of Mo from a large volume of magmas is required to account for the formation of a large Mo deposit. Almost all the hydrothermal fluids contain high concentrations of Fe and Zn-Pb, but only a few of them eventually form Fe or Zn-Pb deposits, reflecting an important role of the hydrothermal evolution process on the selective metal *** above results indicate that different metals are enriched in different stages of a magmatic hydrothermal system, and that the major roles played in the formation of a deposit vary with the metal types. In addition to the metal concentrations in the o

关键词： Magmatic hydrothermal deposits Fluid inclusions LA-ICP-MS Metal enrichment Mineralization mechanism

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