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激光与光电子学进展 2024年第11期61卷 60-66页

作者： Su Yawen Chen Haiwei zhao mengwei Niu Yunfei Li Chen Zhang Yong Yang Shaoguang Zhu Shining Hu Xiaopeng National Laboratory of Solid State Microstructures School of Physics College of Engineering and Applied Sciences Nanjing University Zhejiang Laboratory

Conductive ferroelectric domain walls have attracted increasing research interest in the field of nanoelectronics, and the fabrication technique for such domain walls is vital. In this study, we investigated in detail the fabrication of conductive domain walls in x-cut congruent thin-film lithium niobate(TFLN) using an electrical-field poling technique. The ferroelectric domain structures can be controlled through the applied electrical field and applied pulse numbers, and the domain inversion process is related to the conduction characteristics of the domain walls. The domain structures in TFLN are revealed using confocal second-harmonic microscopy and piezoresponse force microscopy. The results provide further directions for the development and application of conductive domain walls in TFLN.

关键词： conduction characteristics of domain wall electric field poling head-to-head/tail-to-tail domain thin-film lithium niobate

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水库高水位运用库区淹没补偿机制

河南水利与南水北调 2024年第4期53卷 15-16页

作者：赵梓言彭可赵孟伟河南省水旱灾害防御中心河南郑州川450018 河南省水文水资源中心河南郑州450000

水库是防洪工程体系建设的重要基础设施,同时也是防洪调度的工程基础。水库在汛期最大程度发挥拦洪、削峰作用,控制下泄流量,保证下游河道行洪安全。但势必增加库区淹没面积,由此将会带来一系列社会问题。文章详细介绍河南省水库高水位... 详细信息

水库是防洪工程体系建设的重要基础设施,同时也是防洪调度的工程基础。水库在汛期最大程度发挥拦洪、削峰作用,控制下泄流量,保证下游河道行洪安全。但势必增加库区淹没面积,由此将会带来一系列社会问题。文章详细介绍河南省水库高水位蓄水总体概况,分析运行淹没影响的特殊性,针对淹没损失认定问题,寻找问题症结点,建立长效工作机制,给出具体运行程序,为河南省相关防汛抗旱部门决策提供理论性支撑。

关键词：水库高水位淹没补偿研究机制

安徽省农业碳排放时空变化分析与影响因素研究

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中国农学通报 2024年第16期40卷 104-111页

作者：王青青赵梦薇罗晶晶刘伟伟安徽农业大学工学院合肥230036

随着对农业碳排放问题关注的增加,省级层面的研究对于指导减排工作具有关键作用。为揭示安徽省农业碳排放的时空演变规律及其影响因素,依据2003-2022年《安徽省统计年鉴》及各地级市相应统计年鉴,应用IPCC方法估算安徽省农业碳排放量,... 详细信息

随着对农业碳排放问题关注的增加,省级层面的研究对于指导减排工作具有关键作用。为揭示安徽省农业碳排放的时空演变规律及其影响因素,依据2003-2022年《安徽省统计年鉴》及各地级市相应统计年鉴,应用IPCC方法估算安徽省农业碳排放量,并采用LMDI(Logarithmic Mean Divisia Index)方法分析农业碳排放影响因素及其贡献度。结果表明:(1)2002-2021年安徽省农业碳排放总量呈先增长后波动下降的趋势,2003年达到峰值2189.62万t,2004年开始波动下降,2021年下降至1243.36万t。(2)畜禽养殖为安徽省第一大碳排放源,2002年最高占比达82.09%,其中养牛产生的碳排放占比超过50%。(3)铜陵、芜湖和马鞍山的农业碳排放总量属于增长型,其他地级市农业碳排放总量处于下降阶段。(4)农业生产效率为安徽省农业碳排放的负向驱动关键性因素,2011年贡献率达到最低值0.66;农业经济发展水平为正向驱动关键性因素,2004年的贡献率达到最高值1.34。本研究结果可为农业碳减排方法和政策制定提供理论参考。

关键词：安徽省 IPCC方法 LMDI方法农业碳排放量影响因素时空变化

Evolution of the North Atlantic Current and Barents Ice Sheet as revealed by grain size populations in the northern Norwegian Sea during the last 60 ka

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Acta Oceanologica Sinica 2021年第10期40卷 106-117页

作者： Weiguo Wang mengwei zhao Yanguang Liu Min Jiang Chengqiang Wu Yang Liu Third Institute of Oceanography Ministry of Natural ResourcesXiamen 361005China Pilot National Laboratory for Marine Science and Technology(Qingdao) Qingdao 266237China First Institute of Oceanography Ministry of Natural ResourcesQingdao 266061China School of Earth Sciences Lanzhou UniversityLanzhou 730000China

The grain size distribution of bulk sediment samples was decomposed in a core to reconstruct paleoceanographic evolution over the past 60 ka in the northern Norwegian *** results show that sediments consisted of 3–4 grain populations derived from the North Atlantic Current(NAC)and Barents Ice Sheet(BIS).The grain size data suggest three palaeoceanographic evolution stages:(1)an environment affected by BIS and NAC and changed with the interstadial/stadial transition in phase with the Greenland ice-core record at 60–31 ka BP,during which discharge of icebergs and the content of the coarsest population containing ice-rafted debris(IRD)in the sediments increased significantly during stadial,while the fine silt population containing volcanic glasses increased with the enhancement of NAC during the interstadial;(2)an extreme environment controlled by BIS at31–13 ka *** reached to its maximum at about 31 ka BP and the turbid plumes that formed at the leading edge of BIS contributed to a significant increase in the clayey population in *** drained into the northern Norwegian Sea with periodical calving of the BIS at 31–19 ka ***,the ablation of the BIS discharged massive floods with clayey sediments and icebergs into the Norwegian Sea at 19–13 ka BP,resulting in a constant increase in clay and IRD in sediments;and(3)a marine environment similar to the present one under the strong influence of NAC following the complete melting of the BIS after 13 ka BP,NAC is the dominant transport agent and no IRD occurred in *** fine silt populations containing volcanic glasses transported by NAC significantly increased.

关键词： Norwegian Sea sediments grain size population North Atlantic Current Barents Ice Sheet paleoceanography last glacial

Late Holocene mangrove development and response to sea level change in the northwestern South China Sea

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Acta Oceanologica Sinica 2019年第11期38卷 111-120页

作者： Peng Xia Xianwei Meng Zhen Li Pengyao Zhi mengwei zhao Enkang Wang First Institute of Oceanography Ministry of Natural ResourcesQingdao 266061China College of Earth Science and Engineering Shandong University of Science and TechnologyQingdao 266590China Function Laboratory for Marine Geology National Oceanography LaboratoryQingdao 266237China School of Earth and Ocean Sciences University of VictoriaBritish Columbia V8W 2Y2Canada

Mangroves,widely distributed along the coasts of tropical China,are influenced by Asia monsoon,relative sea level change and enhanced human *** predict the impacts of future climate change on mangrove ecosystems,it can be understood by reconstructing past mangrove dynamics using proxies preserved in coastal *** this study,we quantitatively partitioned buried organic matter(OM)sources,collected from a vulnerable mangrove swamp in the Qinzhou Bay of northwestern South China Sea,using a ternary end-member mixing model of δ^13C and C:N ***-derived OM(MOM)contribution was used as a tracer for mangrove development since 2.34 cal ka *** information,together with paleoclimate records(i.e.,speleothem δ^18O values,sea level change,grain size parameters)and human activity,was used to divide mangrove development into three stages during the late Holocene:relative flourish(2.34-1.13 cal ka BP),relative degradation(1.13-0.15 cal ka BP)and further degradation(0.15-0 cal ka BP).Before 1.13 cal ka BP,mangroves flourished with a high MOM contribution((88.9±10.6)%),corresponding to stable and high sea level under a warm and humid *** 1.13 cal ka BP,rapid fall in relative sea level coupled with the strengthening of the Asian winter monsoon,resulted in mangrove degradation and MOM reduction((62.4±18.9)%).Compared with air temperature and precipitation,the relative sea level fall was the main controlling factor in mangrove development before entering the Anthropocene(the time of the Industrial Revolution).After^150 cal a BP,reclamation of mangrove swamps to shrimp ponds is the main factor causing mangrove degradation and MOM reduction.

关键词： carbon isotope mangrove development climate change sea level late Holocene

Effect of GnRH analogs in advanced male breast cancer:10-year experience from the Henan Breast Cancer Center and literature review

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Chinese Medical Journal 2024年第13期137卷 1623-1625页

作者： mengwei Zhang Huimin Lyu Limin Niu Zhenzhen Liu Huiai Zeng Shengnan zhao Jing Wang Huihui Sun Min Yan Department of Breast Disease Henan Breast Cancer CenterThe Affiliated Cancer Hospital of Zhengzhou University&Henan Cancer HospitalZhengzhouHenan 450008China

To the Editor:Male breast cancer is relatively rare,accounting for just 1%of all breast cancer cases.[1]The management strategies for male breast cancer are mainly based on a limited number of retrospective studies and speculation based on female breast *** study presents a comprehensive account of a decade-long observation of male metastatic breast cancer(mMBC)in our *** Affiliated Cancer Hospital of Zhengzhou University database had records of 2853 advanced breast cancer cases that were treated from January 1,2010 to December 31,*** of the total number,18 cases were identified as *** analysis encompassed data about the treatment administered,the treatment’s effectiveness,and the patient’s survival *** present investigation entails a retrospective examination of our institution’s 10-year experience with patients diagnosed with mMBC and a comprehensive evaluation of relevant literature.

关键词： breast Cancer cancer

The marine environmental evolution in the northern Norwegian Sea revealed by foraminifera during the last 60 ka

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Advances in Polar Science 2021年第3期32卷 210-220页

作者： WANG Weiguo zhao mengwei YANG Jichao XIAO Wenshen WANG Haoyin LIU Yang Third Institute of Oceanography Ministry of Natural ResourcesP.R.C.Xiamen 361005China Pilot National Laboratory for Marine Science and Technology Qingdao 266237China Shandong University of Science and Technology Qingdao 266590China State Key Laboratory of Marine Geology Tongji UniversityShanghai 200092China School of Marine Science and Technology Hainan Tropical Ocean UniversitySanya 572000China School of Earth Sciences Lanzhou UniversityLanzhou 730000China

Both planktonic and benthic foraminifera were identified in a sediment core collected from the northern Norwegian Sea to reconstruct the paleoceanographic evolution since the last *** assemblages and distribution patterns of dominant foraminiferal species with special habitat preferences indicated that three marine environments occurred in the northern Norwegian Sea since 62 ka BP:(1)an environment controlled by the circulation of the North Atlantic Current(NAC);(2)by polynya-related sinking of brines and upwelling of intermediate water surrounding the polynya;(3)by melt-water from Barents Sea Ice Sheet(BSIS).At 62-52.5 ka BP,a period with the highest summer insolation during the last glaciatial period,intensification of the NAC led to higher absolute abundances and higher diversity of foraminiferal *** higher abundance of benthic species Cibicidoides wuellerstorfi indicates bottom water conditions that were well-ventilated with an adequate food supply;however,higher abundances of polar planktonic foraminiferal species Neogloboquadrina pachyderma(sin.)indicate that the near-surface temperatures were still *** mid-late Marine Isotope Stage(MIS)3(52.5-29 ka BP),the marine environment of the northern Norwegian Sea alternately changed among the above mentioned three *** 29-17ka BP during the last glacial maximum,the dominant benthic species Bolivina arctica from the Arctic Ocean indicates an extreme cold bottom *** BSIS expanded to its maximum extent during this period,and vast polynya formed at the edge of the ice *** sinking of brines from the formation of sea ice in the polynyas caused upwelling,indicated by the upwelling adapted planktonic species Globigerinita *** 17-10 ka BP,the northern Norwegian Sea was controlled by *** the ablation of BSIS,massive amounts of melt water discharged into the Norwegian Sea,resulting in strong water column stratification,poor ventilation,and an oligotrophic

关键词： Norwegian Sea foraminifera North Atlantic Current Barents Sea Ice Sheet marine environments last glaciation

Spatial variation in grain-size population of surface sediments from northern Bering Sea and western Arctic Ocean: Implications for provenance and depositional mechanisms

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Advances in Polar Science 2020年第3期31卷 192-204页

作者： WANG Weiguo YANG Jichao zhao mengwei DONG Linsen JIANG Min HUANG Erhui Third Institute of Oceanography Ministry of Natural Resources(MNR)Xiamen 361005China National Deep Sea Center Ministry of Natural Resources(MNR)Qingdao 266237China Pilot National Laboratory for Marine Science and Technology Qingdao 266237China First Institute of Oceanography Ministry of Natural Resources(MNR)Qingdao 266061China

In general,sediments in nature comprise populations of various *** information regarding the sources and depositional mechanisms of the populations can be obtained through their temporal and spatial *** this study,the grain size distribution of surface sediments from the Bering Sea and western Arctic Ocean were fitted and partitioned into populations using a log-normal distribution *** spatial variations in the populations indicate differences in their sources and deposition *** sediments on most of the Bering Sea Shelf originated from the Yukon River,and were transported westward by waves and ***,the presence of a coarser population outside Anadyr Bay was the result of Anadyr River ***,a northward transport trend of fine suspended particles was observed on the west side of the Bering Sea *** sediments in Hope Valley in the south Chukchi Sea also originated from the Yukon *** coarser population on the central Chukchi Sea Shelf originated from coast of Alaska to the east,not the Yukon River,and was transported by sea ice and bottom brine *** populations of sediments from the Chukchi Basin and the base of the Chukchi Sea Slope are the result of sea ice and eddy *** sediments from the western high Arctic Ocean predominantly comprised five populations,and two unique populations with mode diameters of 50–90μm and 200–400μm,respectively,were ubiquitous in the glacial and interglacial *** was difficult to distinguish whether these two populations originated from sea ice or ***,caution should be exercised when using either the>63μm or>250μm fractions in sediments as a proxy index for iceberg and ice sheet variation in the high Arctic Ocean.

关键词： Bering Sea western Arctic Ocean surface sediments grain-size population provenance depositional mechanisms

AtVQ25 promotes salicylic acid-related leaf senescence by fine-tuning the self-repression of AtWRKY53

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Journal of Integrative Plant Biology 2024年第6期66卷 1126-1147页

作者： Qi Tan Mingming zhao Jingwei Gao Ke Li mengwei Zhang Yunjia Li Zeting Liu Yujia Song Xiaoyue Lu Zhengge Zhu Rongcheng Lin Pengcheng Yin Chunjiang Zhou Geng Wang Ministry of Education Key Laboratory of Molecular and Cellular Biology Hebei Research Center of the Basic Discipline of Cell BiologyHebei Collaboration Innovation Center for Cell Signaling and Environmental AdaptationHebei Key Laboratory of Molecular and Cellular BiologyCollege of Life SciencesHebei Normal UniversityShijiazhuang 050024China College of Chemical Engineering Shijiazhuang UniversityShijiazhuang 050035China Institute of Botany Chinese Academy of SciencesBeijing 100093China

Most mechanistic details of chronologically ordered regulation of leaf senescence are *** networks centered on AtWRKY53 are crucial for orchestrating and integrating various senescence-related ***,AtWRKY53binds to its own promoter and represses transcription of AtWRKY53,but the biological significance and mechanism underlying this selfrepression remain *** this study,we identified the VQ motif-containing protein AtVQ25as a cooperator of *** expression level of AtVQ25 peaked at mature stage and was specifically repressed after the onset of leaf ***25-overexpressing plants and atvq25 mutants displayed precocious and delayed leaf senescence,***,we identified AtWRKY53 as an interacting partner of *** determined that interaction between AtVQ25 and AtWRKY53 prevented AtWRKY53from binding to W-box elements on the AtWRKY53promoter and thus counteracted the selfrepression of *** addition,our RNA-sequencing data revealed that the AtVQ25-AtWRKY53 module is related to the salicylic acid(SA)*** leaf senescence and SA-induced leaf senescence in AtVQ25-overexpressing lines were inhibited by an SA pathway mutant,atsid2,and Nah G transgenic plants;AtVQ25-overexpressing/atwrky53 plants were also insensitive to SA-induced leaf ***,we demonstrated that AtVQ25 directly attenuates the self-repression of AtWRKY53 during the onset of leaf senescence,which is substantially helpful for understanding the timing of leaf senescence onset modulated by AtWRKY53.

关键词： AtWRKY53 leaf senescence salicylic acid transcriptional regulation VQ motif-containing proteins

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PCCP管道生产工艺及质量控制要点

河南水利与南水北调 2022年第1期51卷 68-69页

作者：赵孟伟河南省豫东水利工程管理局河南开封475004

为了更全面的介绍PCCP管道生产工艺流程及其质量控制要点,从国内PCCP发展历程、应用场景、制作工艺、生产流程、PCCP自身优点处着手说明。指出了PCCP生产常见质量问题及缺陷的表现形式。结合现场情况及自身实践经验,指出PCCP质量控制的... 详细信息

为了更全面的介绍PCCP管道生产工艺流程及其质量控制要点,从国内PCCP发展历程、应用场景、制作工艺、生产流程、PCCP自身优点处着手说明。指出了PCCP生产常见质量问题及缺陷的表现形式。结合现场情况及自身实践经验,指出PCCP质量控制的关键在于原材料的质量控制和生产过程的质量控制,尤其是关键原材料和关键生产工序的质量控制,同时也给出关键原材料和关键生产工序质量具体控制措施。这对PCCP的质量控制提供了保障,也对指导管材生产厂家重点关注影响PCCP的质量的关键原材料和关键工序提供一些具有可操作性、可借鉴性的建议和指导。

关键词： PCCP 质量控制因素原材料生产工序