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In situ zircon U–Pb dating and O isotopes of the Neoarchean Hongtoushan VMS Cu–Zn deposit in the North China Craton:Implication for the ore genesis

In situ zircon U–Pb dating and O isotopes of the Neoarchean...

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中国科学院地质与地球物理研究所2015年度（第15届）学术年会

作者： ming-tian zhu Lian-Chang Zhang Yan-Pei Dai Chang-Le Wang Key Laboratory of Mineral Resources Institute of Geology and GeophysicsChinese Academy of Sciences

The Hongtoushan volcanogenic massive sulfide(VMS)deposit is the largest Archean Cu–Zn deposit in China,located in the Qingyuan greenstone belt on the northern margin of the North China *** Cu–Zn mineralization was stratigraphically controlled by the interbeds(00 m in thickness)of mafic–felsic volcanic sets and overlain by banded iron ***,the relationship between VMS deposits and associated volcanics has not been *** study ultimately clarifies the times and sources of the volcanics and *** on in situ zircon U–Pb and O isotope on VMS-hosting mafic,felsic volcanic rocks,banded and massive sulfide ores and postmineralization pegmatite vein,we considered that there were two main formation stages for the Qingyuan Cu–Zn deposits;one was exhalative-hydrothermal sedimentation and another was further Cu–Zn enriched by later hydrothermal *** timing of the first stage occurred at 2571±6 Ma based on the magmatic zircons in the VMS-hosting mafic volcanic rocks,from which the inherited zircons also indicate the existence of 2.65–3.12 Ga ancient supercrustal rocks in the Qingyuan district.A modern mantle-likeδ18Ozircon value of 5.5±0.1‰(2SD)for this volcanism was well preserved in the inherited core domains of ore *** suggests that the mafic volcanics was most likely sourced from partial melting of juvenile crust,e.g.,TTG granites.A large-scale metamorphic or hydrothermal event is documented by the recrystallized zircons in sulfide *** timing is tightly constrained by the hydrothermal zircon U–Pb *** are 2508±4 Ma for the banded ore,2507±4 Ma for the massive ore and 2508±2 Ma for the postmineralization pegmatite *** indistinguishable ages indicate that the 2507 Ma hydrothermal systems played a significant role in the upgrading of the VMS Cu–Zn *** weightedδO values of hydrothermal zircons show a successively increasing trend from 6.0±0.1‰(2σ)for the banded ore,6.6±0.2‰(2σ)for the massive ore t

关键词： Zircon U–Pb Oxygen isotopes Hydrothermal zircon Neoarchean Hongtoushan VMS deposit NCC

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Fluid inclusions and He-Ar isotopes in pyrite from the Yinjiagou deposit in the southern margin of the North China Craton:A mantle connection for poly-metallic mineralization

Fluid inclusions and He-Ar isotopes in pyrite from the Yinji...

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中国科学院地质与地球物理研究所2013年度（第13届）学术年会

作者： ming-tian zhu Lian-Chang Zhang Guang Wu Huai-Yu He Min-Li Cui Key Laboratory of Mineral Resources Institute of Geology and GeophysicsChinese Academy of Sciences Institute of Mineral Resources Chinese Academy of Geological Sciences Key Laboratory of the Earth's Deep Interior Institute of Geology and GeophysicsChinese Academy of Sciences

The Yinjiagou poly-metallic deposit is located at the southern margin of the North China Craton(SMNCC).Pyrite, the most economically important mineral,is associated with Cu,Mo,Au,Pb,Zn and Ag *** main mineralization stages have been identified and studied:a porphyry stage,including the quartz-molybdenite and quartz-sericite-pyrite(QSP)veins,and a vein stage,including the early and the late(economically most important) pyrite stages. Three types of fluid inclusions arc distinguished in quartz and pyrite,including liquid-rich,vapor-rich biphase (LV)and halite-bearing *** transmitted and infrared microthermometry produced several results. (1)Each of the three types of fluid inclusions is trapped in the quartz of the porphyry stage,with homogenization temperatures of 335-419℃and salinities of 4.7-49.6 wt.%NaCl *** coexistence of halite-bearing inclusions and low density,vapor-rich biphase(LV)inclusions indicates that the fluid was boiling. The boiling elevated the Fe and S levels in the hyper-saline fluid,as reflected by the development of pyrite, chalcopyrite and S daughter minerals in the halite-bearing inclusions.(2)The fluid in the early pyrite also displays features characteristic of boiling,with homogenization temperatures of 352->400℃and salinities of 3.7-42.4 wt.%NaCl *** the late pyrite only contains liquid-rich biphase(LV)inclusions,with homogenization temperatures of 263-354℃and salinities of 6.0-21.3 wt.%NaCl *** relationship between the decreasing salinity and the corresponding decreasing homogenization temperature clearly indicates extensive mixing and dilution.(3)Finally,the infrared calibration indicates that the impact of infrared light intensity on the microthermometric results for the Yinjiagou pyrite-hosted fluid inclusions is limited The He-Ar isotopic analysis of the fluid inclusions in the pyrite indicates two different fluid sources that involve abundant mantle *** He/He ratios in the porphyry

关键词： Fluid inclusions He-Ar isotopes Pyrite Mantle-derived fluid Yinjiagou deposit SMNCC

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Zircon U-Pb and pyrite Re-Os age constraints on pyrite mineralization in the Yinjiagou deposit,China

Zircon U-Pb and pyrite Re-Os age constraints on pyrite miner...

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中国科学院地质与地球物理研究所2013年度（第13届）学术年会

作者： ming-tian zhu Lian-Chang Zhang Guang Wu Xin-Di Jin Peng Xiang Wen-Jun Li Key Laboratory of Mineral Resources Institute of Geology and GeophysicsChinese Academy of Sciences Institute of Mineral Resources Chinese Academy of Geological Sciences

We report new zircon U-Pb and pyrite Re-Os geochronological studies of the Yinliagou poly-metallic deposit,sited along the southern margin of the North China Craton(SMNCC).In this deposit,pyrite,the most important economic mineral,is intergrown/associated with Mo,Cu,Au,Pb,Zn,and *** to our new work,the age of chalcopyrite-pyrite mineralization was known only from its spatial relationship with molybdenite mineralization and with intrusions of known *** U-Pb and Re-Os isotope systems provide an excellent means of dating the mineralization itself and additionally place constraints on the ore genesis and metal *** separated from the quartz-chalcopyrite-pyrite veins include both detrital and magmatic *** magmatic zircons confine the maximum age of chalcopyrite-pyrite mineralization to 142.0±1.5 Ma. The Re-Os results yield an age of 141.1±1.1 Ma,which represents the age of the chalcopyrite-pyrite mineralization quite *** common Os contents are notably low(0.5-20.1 ppt)in all *** contrast,the Re contents vary considerably (3.0-199.2 ppb).most likely depending on intensive boiling,which resulted in an increase of Re within the *** study demonstrates that the main chalcopyrite-pyrite mineralization occurred late in the magmatic history and was linked to a deeper intrusion involving dominant mantle-derived *** mineralization event might be related to the Early Cretaceous lithospheric destruction and thinning of the SMNCC.

关键词： zircon U-Pb dating Re-Os isotopic age pyrite Yinjiagou deposit southern margin of the North China Craton

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Review of precipitation strengthening in ultrahigh-strength martensitic steel

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International Journal of Minerals,Metallurgy and Materials 2025年第2期32卷 256-269页

作者： Zhihao tian Chunlei Shang Chaolei Zhang Xiaoye Zhou Honghui Wu Shuize Wang Guilin Wu Junheng Gao Jiaming zhu Xinping Mao Institute for Carbon Neutrality University of Science and Technology BeijingBeijing 100083China Institute of Steel Sustainable Technology Liaoning Academy of MaterialsShenyang 110004China Department of Materials Science and Engineering Shenzhen MSU-BIT UniversityShenzhen 518172China Institute of Materials Intelligent Technology Liaoning Academy of MaterialsShenyang 110004China School of Civil Engineering Shandong UniversityJinan 250061China

Martensite is an important microstructure in ultrahigh-strength steels,and enhancing the strength of martensitic steels often involves the introduction of precipitated phases within the martensitic *** considerable research efforts devoted to this area,a systematic summary of these advancements is *** review focuses on the precipitates prevalent in ultrahigh-strength martensitic steel,primarily carbides(e.g.,MC,M_(2)C,and M_(3)C)and intermetallic compounds(e.g.,Ni Al,Ni_(3)X,and Fe_(2)Mo).The precipitation-strengthening effect of these precipitates on ultrahigh-strength martensitic steel is discussed from the aspects of heat treatment processes,microstructure of precipitate-strengthened martensite matrix,and mechanical ***,a perspective on the development of precipitation-strengthened martensitic steel is presented to contribute to the advancement of ultrahigh-strength martensitic *** review highlights significant findings,ongoing challenges,and opportunities in the development of ultrahigh-strength martensitic steel.

关键词： ultrahigh-strength martensitic steel precipitation strengthening mechanical property carbide intermetallic compound

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黑龙江省精准扶贫的路径探讨

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边疆经济与文化 2018年第9期 6-8页

作者：田明珠黑龙江大学经济与工商管理学院哈尔滨150080

脱贫攻坚是我国近几年一项重要而艰巨的任务,为保证在2020年消除绝对贫困,让贫困县全部摘帽,黑龙江省自2014年起根据本省现有情况,有针对性地开展精准扶贫。经过4年的不懈努力,省内脱贫工作初见成效,但尚存在资金投入不足、致贫原因多... 详细信息

脱贫攻坚是我国近几年一项重要而艰巨的任务,为保证在2020年消除绝对贫困,让贫困县全部摘帽,黑龙江省自2014年起根据本省现有情况,有针对性地开展精准扶贫。经过4年的不懈努力,省内脱贫工作初见成效,但尚存在资金投入不足、致贫原因多样、扶贫方式短效等诸多难点问题亟待解决。对黑龙江省精准扶贫的路径提出三点建议:加大资金投入,鼓励人才引进;优化产业结构,注重教育医疗;提升技术培训,脱贫后期跟踪。

关键词：黑龙江省精准扶贫产业结构

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浅谈新《政府会计制度》对事业单位固定资产核算及管理的影响

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当代会计 2021年第6期 91-93页

作者：田明珠湖南张家界大鲵国家级自然保护区管理处

新《政府会计制度》的实施,使得固定资产的定义、分类、计提折旧、价值确认、管理要求等均发生了变化,这就要求事业单位改革固定资产核算及管理模式,以适应新《政府会计制度》的相关要求,保证固定资产核算及管理质量,通过精细化管理全... 详细信息

新《政府会计制度》的实施,使得固定资产的定义、分类、计提折旧、价值确认、管理要求等均发生了变化,这就要求事业单位改革固定资产核算及管理模式,以适应新《政府会计制度》的相关要求,保证固定资产核算及管理质量,通过精细化管理全面发挥固定资产的价值。本文首先分析了新《政府会计制度》对事业单位固定资产核算及管理的影响,之后提出了事业单位在固定资产核算及管理中存在的不足,最后针对相关问题提出了优化策略,为事业单位在适应新《政府会计制度》基础上不断提升固定资产核算及管理水平提供帮助。

关键词：新《政府会计制度》事业单位固定资产核算管理

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Dip2a regulates stress susceptibility in the basolateral amygdala

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Neural Regeneration Research 2025年第6期20卷 1735-1748页

作者： Jing Li Zixuan He Weitai Chai Meng tian Huali Yu Xiaoxiao He Xiaojuan zhu Key Laboratory of Molecular Epigenetics Ministry of Education Institute of Genetics and CytologyNortheast Normal UniversityChangchunJilin ProvinceChina

Dysregulation of neurotransmitter metabolism in the central nervous system contributes to mood disorders such as depression, anxiety, and post–traumatic stress disorder. Monoamines and amino acids are important types of neurotransmitters. Our previous results have shown that disco-interacting protein 2 homolog A(Dip2a) knockout mice exhibit brain development disorders and abnormal amino acid metabolism in serum. This suggests that DIP2A is involved in the metabolism of amino acid–associated neurotransmitters. Therefore, we performed targeted neurotransmitter metabolomics analysis and found that Dip2a deficiency caused abnormal metabolism of tryptophan and thyroxine in the basolateral amygdala and medial prefrontal cortex. In addition, acute restraint stress induced a decrease in 5-hydroxytryptamine in the basolateral amygdala. Additionally, Dip2a was abundantly expressed in excitatory neurons of the basolateral amygdala, and deletion of Dip2a in these neurons resulted in hopelessness-like behavior in the tail suspension test. Altogether, these findings demonstrate that DIP2A in the basolateral amygdala may be involved in the regulation of stress susceptibility. This provides critical evidence implicating a role of DIP2A in affective disorders.

关键词： 5-hydroxytryptamine acute restraint stress basolateral amygdala CaMKII neurons DIP2A metabolomics neurotransmitters principal component analysis stress susceptibility tryptophan

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Alternative Strategy for Development of Dielectric Calcium Copper Titanate‑Based Electrolytes for Low‑Temperature Solid Oxide Fuel Cells

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Nano-Micro Letters 2025年第1期17卷 310-332页

作者： Sajid Rauf Muhammad Bilal Hanif Zuhra Tayyab Matej Veis MAKYousaf Shah Naveed Mushtaq Dmitry Medvedev Yibin tian Chen Xia Martin Motola Bin zhu College of Mechatronics and Control Engineering Shenzhen UniversityShenzhen 518060People’s Republic of China Department of Inorganic Chemistry Faculty of Natural SciencesComenius University BratislavaIlkovicova684215 BratislavaSlovakia Energy Storage Joint Research Center School of Energy and EnvironmentSoutheast UniversityNanjing 210096People’s Republic of China Hydrogen Energy Laboratory Ural Federal University620002 EkaterinburgRussia Laboratory of Electrochemical Devices Based on Solid Oxide Proton Electrolytes Institute of High Temperature Electrochemistry620066 EkaterinburgRussia School of Microelectronics Hubei UniversityWuhan 430062People’s Republic of China

The development of low-temperature solid oxide fuel cells(LT-SOFCs)is of significant importance for realizing the widespread application of *** has stimulated a substantial materials research effort in developing high oxide-ion conductivity in the electrolyte layer of *** this context,for the first time,a dielectric material,CaCu_(3)Ti_(4)O_(12)(CCTO)is designed for LT-SOFCs electrolyte application in this *** individual CCTO and its heterostructure materials with a p-type Ni_(0.8)Co_(0.15)Al_(0.05)LiO_(2−δ)(NCAL)semiconductor are evaluated as alternative electrolytes in LT-SOFC at 450–550℃.The single cell with the individual CCTO electrolyte exhibits a power output of approximately 263 mW cm^(-2) and an open-circuit voltage(OCV)of 0.95 V at 550℃,while the cell with the CCTO–NCAL heterostructure electrolyte capably delivers an improved power output of approximately 605 mW cm^(-2) along with a higher OCV over 1.0 V,which indicates the introduction of high hole-conducting NCAL into the CCTO could enhance the cell performance rather than inducing any potential short-circuiting *** is found that these promising outcomes are due to the interplay of the dielectric material,its structure,and overall properties that led to improve electrochemical mechanism in CCTO–***,density functional theory calculations provide the detailed information about the electronic and structural properties of the CCTO and NCAL and their heterostructure CCTO–*** study thus provides a new approach for developing new advanced electrolytes for LT-SOFCs.

关键词： LT-SOFCs Dielectric CaCu_(3)Ti_(4)O_(12) Semiconductor Ni_(0.8)Co_(0.15)Al_(0.05)LiO_(2−δ) Ionic conductivity Heterostructure electrolyte

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改良PICC置管技术在169例肺癌患者化疗中的应用

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中华临床营养杂志 2009年第1期17卷 56-57页

作者：郭梅田明珠汪丹王鑫龚海芬解放军总医院肿瘤科北京100853

目的研究改良经外周静脉置入中心静脉导管（PICC）置管技术对导管异位的影响。方法将169例肺癌置管患者随机分为试验组（88例）与对照组（81例），试验组在行HCC置管术送管至25cm时，助手用手紧贴患者锁骨上窝按压穿刺侧颈内静脉和颈外... 详细信息

目的研究改良经外周静脉置入中心静脉导管（PICC）置管技术对导管异位的影响。方法将169例肺癌置管患者随机分为试验组（88例）与对照组（81例），试验组在行HCC置管术送管至25cm时，助手用手紧贴患者锁骨上窝按压穿刺侧颈内静脉和颈外静脉下端；对照组采取常规歪头的方法。统计两组导管异位的发生率。结果试验组仅有1例导管被送人颈外静脉，导管颈部异位发生率为1．1％（1／88）；对照组导管异位发生率为11．1％（9／81），两组比较差异无统计学意义（X^2=7．3636，P〈0．01）。结论肺癌患者PICC置管过程中，术者采取相应的干预手法可明显减少导管异行进入颈静脉的并发症。

关键词：肺癌经外周静脉置人中心静脉导管导管异位

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中西医结合治疗哮喘急性发作42例临床观察

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上海中医药杂志 2004年第9期38卷 9-10页

作者：吴日明朱田风陈泽梅广东医学院附属湛江中心医院广东湛江524037

为观察中西医结合治疗支气管哮喘 (简称哮喘 )急性发作的临床疗效 ,将 82例患者随机分为治疗组 4 2例和对照组 4 0例。对照组按照西医哮喘常规处理。治疗组在对照组的基础上加服自拟平哮汤 ,4天为 1疗程 ,共观察 3个疗程。观察两组主要... 详细信息

为观察中西医结合治疗支气管哮喘 (简称哮喘 )急性发作的临床疗效 ,将 82例患者随机分为治疗组 4 2例和对照组 4 0例。对照组按照西医哮喘常规处理。治疗组在对照组的基础上加服自拟平哮汤 ,4天为 1疗程 ,共观察 3个疗程。观察两组主要症状、体征及PEF、EOS、IgE的变化。结果 :治疗组总有效率为 95 2 % ,第 1疗程病情缓解率两组间比较差异均有显著性 (P <0 0 5 ) ;PEF、EOS、IgE两组治疗后均较治疗前改善或明显改善 (P <0 0 5或P <0 0 1) ;组间比较 ,差异均有显著性 (P <0 0 5 )。提示中西医结合治疗哮喘急性发作有良好疗效。

关键词：哮喘发作期中西医结合疗法

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