检索结果-南通市图书馆

Paleoenvironment and organic matter enrichment of the Carboniferous volcanic-related source rocks in the Malang Sag,Santanghu Basin,NW China

引用

Petroleum Science 2021年第1期18卷 29-53页

作者： Tian-Jun Li zhi-long huang Xuan Chen Xin-Ning Li Jun-Tian Liu State Key Laboratory of Petroleum Resources and Prospecting China University of Petroleum(Beijing)Beijng 102249China College of Geosciences China University of Petroleum(Beijing)Beijing 102249China Research Institute of Exploration and Development PetroChina Tuha Oilfield CompanyHamiXinjiang 839009China

Volcanic activity was quite frequent during the deposition of the Late Carboniferous Ha’erjiawu Formation in the Santanghu *** petrology and organic and inorganic geochemical indicators were used to investigate hydrocarbon potential,paleoenvironmental conditions and organic matter enrichment of the *** results show that the oil generation capacity of the Ha’erjiawu Formation mudstones,which has abundant oil-prone organic matter(TypeⅡkerogen with hydrogen index values mainly ranging from 250 to 550 mg HC/g TOC)in mature stage(Tmax values mainly ranging from 435 to 450℃),is *** Ha’erjiawu Formation was deposited in a dysoxic,freshwater-mildly brackish,and warm-humid *** its deposition,the Ha’erjiawu Formation received hydrothermal *** volcanic hydrothermal activities played an important role in the organic matter *** addition,the total organic carbon(TOC)is significantly positively correlated with the felsic mineral content,but it is negatively correlated with the carbonate mineral content and C27/C29 ratios,indicating that terrigenous organic matter input also contributed to the primary productivity in the surface ***,the formation of the high-quality source rocks in the Ha’erjiawu Formation was jointly affected by the hydrothermal activity and the terrigenous organic matter input.

关键词： Organic-rich rocks Paleoenvironment Organic matter enrichment Hydrothermal activity Ha’erjiawu Formation Santanghu Basin

来源：

维普期刊数据库

同方期刊数据库评论

在线全文

学校读者我要写书评

暂无评论

Gold and antimony metallogenic relations and ore-forming process of Qinglong Sb(Au) deposit in Youjiang basin, SW China: Sulfide trace elements and sulfur isotopes

引用

Geoscience Frontiers 2021年第2期12卷 605-623页

作者： Jun Chen zhi-long huang Rui-Dong Yang Li-Juan Du Ming-Yang Liao State Key Laboratory of Ore Deposit Geochemistry Institute of GeochemistryChinese Academy of SciencesGuiyang550002China College of Resources and Environmental Engineering Guizhou UniversityGuiyang550025China Key Laboratory of Karst Georesources and Environment Ministry of EducationGuizhou UniversityGuiyang550025China School of Mining Engineering Guizhou Institute of TechnologyGuiyang550003China

In the northwestern margin of the Youjiang basin(NWYB)in SW China,many Carlin-like gold deposits are highly antimony(Sb)-rich,and many vein-type Sb deposits contain much *** deposits have similar ages,host rocks,ore-forming temperatures,ore-related alterations and ore mineral assemblages,but the Au and Sb metallogenic relations and their ore-forming process remain *** we investigate the large Qinglong Sb deposit in the NWYB,which has extensive sub-economic Au mineralization,and present a new metallogenic model based on in-situ trace elements(EPMA and LA-ICP-MS)and sulfur isotopes(NanoSIMS and fs-LA-MC-ICPMS)of the ore *** Qinglong,economic Sb ores contain coarse-grained stibnite,jasperoid quartz and fluorite,whilst the sub-economic Au–Sb ores comprise dominantly veined quartz,arsenian pyrite and fine-grained *** generations of ore-related pyrite(Py1,Py2 and Py3)and two generations of stibnite(Stb1 and Stb2)are identified based on their texture,chemistry,and sulfur *** pre-ore Py1 is characterized by the lower ore element(Au,As,Sb,Cu and Ag)contents(mostly below the LA-ICP-MS detection limit)and Co/Ni ratios(average 0.31)than the ore-stage pyrites(Py2 and Py3),implying a sedimentary/diagenetic *** Py2 and Py3 have elevated ore element abundance(maximum As=6500 ppm,Au=22 ppm,Sb=6300 ppm,Cu=951 ppm,Ag=77 ppm)and Co/Ni ratios(average 1.84),and have positive As ***–Sb–Cu–Ag ***-ore Stb1 has lower As(0.12–0.30 wt.%)than late-ore Stb2(0.91–1.20 wt.%).These features show that the progressive As enrichment in ore sulfides is accompanied by increasing Au,Sb,Cu and Ag with the hydrothermal evolution,thereby making As a good proxy for ***-rich,As-poor and As-free zones are identified via NanoSIMS mapping of the Au-bearing *** As-rich zones in the Qinglong Au-bearing pyrites(Py2 and Py3)and ore stibnites(Stb1 and Stb2)have narrowδ^(34)SH_(2)S ranges(-8.9‰to +4.1‰,average-3.1‰)and-2.9‰to +6.9‰,average +

关键词： Pyrite Stibnite LA-ICP-MS and NanoSIMS Sulfur isotopes Au and Sb deposits Youjiang basin

来源：

维普期刊数据库

同方期刊数据库评论

在线全文

学校读者我要写书评

暂无评论

典型介电弹性体结构:动力学及其在结构振动控制中的应用（英文）

引用

Journal of Zhejiang University-Science A(Applied Physics & Engineering) 2016年第5期17卷 335-352页

作者： zhi-long huang Xiao-ling JIN Rong-hua RUAN Wei-qiu ZHU Department of Engineering Mechanics Zhejiang UniversityHangzhou 310027China State Key Laboratory of Fluid Power and Mechatronic Systems Zhejiang UniversityHangzhou 310027China Key Laboratory of Soft Machines and Smart Devices of Zhejiang Province Hangzhou 310027China

目的:介电弹性体由于其卓越的优势受到工程界的广泛关注。本文主要综述典型介电弹性结构的动力学的理论和实验研究及其在振动控制中的应用,并指出其中存在的挑战及可能应用于研究的理论。创新点:1.综述四类典型介电弹性体结构的动力学... 详细信息

目的:介电弹性体由于其卓越的优势受到工程界的广泛关注。本文主要综述典型介电弹性结构的动力学的理论和实验研究及其在振动控制中的应用,并指出其中存在的挑战及可能应用于研究的理论。创新点:1.综述四类典型介电弹性体结构的动力学数学模型和动力学行为,以及相应的动力学实验结果研究;2.综述两类典型的介电弹性体结构在振动控制中的应用及相应的控制算法。方法:1.从力学的角度出发,根据介电弹性体的结构形状,研究球形、矩形、管状及圆形介电弹性体结构的动力学模型数学描述及动力学行为;2.实验分析介电弹性体结构的面内及离面动力学行为;3.分析堆栈式和管状式介电弹性体结构在振动控制中的应用及控制算法。结论:1.现有的介电弹性体结构动力学方面的理论研究局限于使用低阶模态,对高阶模态还未涉及;2.现有施加在介电弹性体结构的机械力和电压都是时间的确定性函数,随机情形还属于空白;3.对介电弹性体结构的随机最优控制,特别是以电压为控制项还未研究。

关键词：介电弹性体动力学行为振动控制控制算法随机激励

来源：

维普期刊数据库

同方期刊数据库评论

在线全文

学校读者我要写书评

暂无评论

Erratum to： Typical dielectric elastomer structures： dynamics and application in structural vibration control

引用

Journal of Zhejiang University-Science A(Applied Physics & Engineering) 2016年第9期17卷 758-758页

作者： zhi-long huang Department of Engineering Mechanics Zhejiang University Hangzhou 310027 China State Key Laboratory of Fluid Power and Mechatronic Systems Zhejiang University Hangzhou 310027 China Key Laboratory of Soft Machines and Smart Devices of Zhejiang Province Hangzhou 310027 China

来源：

维普期刊数据库评论

在线全文

维普期刊数据库

学校读者我要写书评

暂无评论

A low redox potential and long life organic anode material for sodium-ion batteries

引用

Journal of Energy Chemistry 2025年第1期100卷 557-564页

作者： zhi Li Yang Wei Kang Zhou Xin huang Xing Zhou Jie Xu Taoyi Kong Junwei Lucas Bao Xiaoli Dong Yonggang Wang Department of Chemistry and Shanghai Key Laboratory of Molecular Catalysis and Innovative Materials Institute of New Energy Collaborative Innovation Center of Chemistry for Energy Materials (iChEM) Fudan University Department of Chemistry Boston College School of Materials Science and Engineering Anhui University of Technology

Sodium-ion batteries （SIBs） with organic electrodes are an emerging research direction due to the sustainability of organic materials based on elements like C,H,O,and sodium ***,organic electrode materials for SIBs are mainly used as cathodes because of their relatively high redox potentials（>1 V）.Organic electrodes with low redox potential that can be used as anode are ***,a novel organic anode material （tetrasodium 1,4,5,8-naphthalenetetracarboxylate,Na4TDC） has been developed with low redox potential （<0.7 V） and excellent cyclic *** three-sodium storage mechanism was demonstrated with various in-situ/ex-situ spectroscopy and theoretical calculations,showing a high capacity of 208 mAh/g and an average decay rate of merely 0.022%per ***,the Na4TDC-hard carbon composite can further acquire improved capacity and cycling stability for 1200 cycles even with a high mass loading of up to 20 mg *** pairing with a thick Na3V2（PO4）3cathode (20.6 mg cm-2),the as-fabricated full cell exhibited high operating voltage （2.8 V）,excellent rate performance and cycling stability with a high capacity retention of 88.7% after 200 cycles,well highlighting the Na4TDC anode material for SIBs.

关键词： Organic anode material Low redox potential Composite anode Sodium-ion batteries

来源：

同方期刊数据库评论

在线全文

同方期刊数据库

学校读者我要写书评

暂无评论

Ce^(4+) Extraction Mechanism from RE Sulfate Solution Containing Fluorine with DEHPA

引用

Journal of Rare Earths 2000年第1期18卷 61-61页

作者： long zhi-qi, huang Xiaowei, huang Wen-mei, ZHANG Guo-cheng (General Research Institute for Non-fer- rous Metals, Beijing 100088, China )

RE sulfate solution containing fluorine is obtained from bastnasite which is roasted in air and then leached with sulfuric acid. Solvent extraction of Ce4+ with DEHPA in sulphonating kerosene from the solution is investigated. It is found that fluorine ion is extracted into organic phase with Ce4+. The extraction mechanism is proposed by slope analysis and studying the influence of aqueous acidity, fluorine concentration and DEHPA concentration on CF- /cC4+ in equilibrium organic phase.

关键词： DEHPA rare earth cerium solvent extraction fluorine

来源：

维普期刊数据库

同方期刊数据库评论

在线全文

学校读者我要写书评

暂无评论

从含氟硫酸稀土溶液中萃取铈过程产生第三相的原因

引用

中国稀土学报 2001年第4期19卷 320-323页

作者：刘营龙志奇黄文梅张国成黄小卫北京有色金属研究总院北京100088

研究了二 ( 2 乙基己基 )磷酸 (DEHPA)从含氟硫酸稀土溶液中萃取Ce4 + 过程中生成第三相的组成 ,运用X荧光光谱法和化学法测定了有机相中析出沉淀物的成分 ,并分析其原因 ,发现产生第三相主要是由于有机相对Ce4 + 的还原作用造成的。... 详细信息

研究了二 ( 2 乙基己基 )磷酸 (DEHPA)从含氟硫酸稀土溶液中萃取Ce4 + 过程中生成第三相的组成 ,运用X荧光光谱法和化学法测定了有机相中析出沉淀物的成分 ,并分析其原因 ,发现产生第三相主要是由于有机相对Ce4 + 的还原作用造成的。研究了有机相的还原性 ,进而找出抑制其还原作用 ,避免第三相生成的方法。

关键词：稀土第三相氟碳铈矿铈萃取湿法冶炼 DEHPA

来源：

维普期刊数据库

同方期刊数据库评论

在线全文

学校读者我要写书评

暂无评论

Studies on parallel seismic testing for integrity of cemented soil columns

引用

Journal of Zhejiang University-Science A(Applied Physics & Engineering) 2007年第11期8卷 1746-1753页

作者： huang Da-zhi CHEN long-zhu Institute of Engineering Safety and Disaster Prevention Dept. of Civil Engineering Shanghai Jiao Tong University Shanghai 200240 China

The principle and process of parallel seismic (PS) testing for the integrity testing of cemented soil columns are in- troduced in this paper. A three-dimensional (3D) finite element model (FEM) for the pile-soil system is established for impulse responses. Under saturated soil or unsaturated soil condition, several vibrating velocity-time histories at different depths in parallel hole are obtained based on the numerical simulation. It shows that the length of the pile and the one-dimensional (1D) P-wave velocity in the pile can be determined easily from the features of the mentioned velocity-time histories. By examining the slopes of the first arrival time plotted versus depth or the depth where the amplitude of the first arrival significantly decreases, the length of the pile can be determined. The effects of the 3D P-wave propagation through the saturated soil and the defect of the cemented soil column on the velocity-time histories are also investigated.

关键词： Parallel seismic (PS) testing Cemented soil columns Integrity testing Numerical simulation

来源：

维普期刊数据库

同方期刊数据库评论

在线全文

学校读者我要写书评

暂无评论

A general stabilizing strategy based on vitamin C for n-type organic semiconductors

引用

Science China Materials 2025年第01期 303-304页

作者： Hui huang College of Materials Science and Opto-Electronic Technology Center of Materials Science and Optoelectronics Engineering University of Chinese Academy of Sciences

Organic semiconductors (OSCs), as an emerging next-generation semiconductor material, hold promising prospects in fields such as flexible displays, electronic skins, smart healthcare,and the Internet of Things, due to their excellent flexibility,solution processability, and tunable band structures [1,2]. These molecules are often classified into n-type and p-type, depending on whether the prevalent charge carriers are electrons or holes[3].

关键词：

来源：

同方期刊数据库

同方期刊数据库评论

在线全文

学校读者我要写书评

暂无评论

Efficient white-light-emitting lead-free halide double perovskites enabling full-spectrum pc-WLEDs

引用

Science China Materials 2025年第1期 305-306页

作者： Xiaoyong huang College of Physics and Optoelectronics Taiyuan University of Technology

With the rapid development of solid-state lighting, an important goal of phosphor-converted white light-emitting diodes (pc-WLEDs) is to provide a healthy and comfortable fullspectrum artificial light source with a co...

关键词：

来源：

同方期刊数据库

同方期刊数据库评论

在线全文

学校读者我要写书评

暂无评论

欢迎您,

建议与咨询留下您的常用邮箱和电话号码，以便我们向您反馈解决方案和替代方法

时间限定

文献类型

馆藏选择

核心期刊

语言

文献类型

帮助

文字说明：

检索规则说明：

检索范例：

分类表

所选分类

限定检索结果

文献类型

馆藏范围

日期分布

学科分类号

主题

机构

作者

语言

在线全文

在线全文

在线全文

在线全文

在线全文

在线全文

在线全文

在线全文

在线全文

在线全文

请选择保存的检索档案：

请选择收藏分类：

通借通还

欢迎您,

建议与咨询 留下您的常用邮箱和电话号码，以便我们向您反馈解决方案和替代方法

时间限定

文献类型

馆藏选择

核心期刊

语言

文献类型

帮助

文字说明：

检索规则说明：

检索范例：

分类表

所选分类

限定检索结果

文献类型

馆藏范围

日期分布

学科分类号

主题

机构

作者

语言

在线全文

在线全文

在线全文

在线全文

在线全文

在线全文

在线全文

在线全文

在线全文

在线全文

请选择保存的检索档案： 新增检索档案 确定 取消

请选择收藏分类： 新增自定义分类 确定 取消

通借通还

建议与咨询留下您的常用邮箱和电话号码，以便我们向您反馈解决方案和替代方法

请选择保存的检索档案：

请选择收藏分类：