|
|
|
题名
|
作者
|
年代
|
出处
|
被引量
|
| 1 | Seafloor hydrothermal activity and polymetallic sulfide exploration on the southwest Indian ridge显示文摘Polymetallic sulfides have attracted more attentions,which are regarded as one of the potential seabed mineral resources for their high grade of precious metal elements such as Cu,Zn,Pb,Au,and Ag.Since2007,there are four China dayang cruises(CDCs)with eight legs totally,which have been carried out to investigate polymetallic sulfides on the southwest Indian ridge(SWIR),and eight hydrothermal vents have been found.In2011,the China Ocean Mineral Resources Research and Development Association(COMRA)and International Seabed Authority(ISA)signed a 15-year contract for exploration for polymetallic sulfides located on the SWIR between 46°S and 53°S.The area allocated to the COMRA is approximately 10,000 km2.In this paper,we review the recent research advances about hydrothermal activity of the SWIR by the CDCs.As for the sulfides exploration in the future,some aspects should be emphasized,such as the controlling factors of sulfide mineralization on the SWIR,prospecting methods of inactive and buried sulfide deposits,sulfides resources assessment method,and the nearbottom sulfides exploration technology systems. | Chunhui Tao Huaiming Li Xiaobing Jin Jianping Zhou Tao Wu Yonghua He Xianming Deng Chunhua Gu Guoyin Zhang Weiyong Liu | 2014 | Chinese Science Bulletin2014，59，19： | 25 |
| 2 | Distribution feature of terrestrial heat flow densities in the Bohai Basin,East China显示文摘Temperature logging curves at 8 boreholes and well-testing temperature data at 142 boreholes are used to determine geotemperature gradients in the Bohai Basin. The thermal conductivities of 86 rock samples are measured at laboratory and the effects of porosity and temperature are corrected to obtain conductivities in situ. Terrestrial heat flow densities at 76 wells are determined based on these data. The distribution of the heat flow indicates that the terrestrial heat flow in the Bohai Basin is relatively high with an average value of 65.8 mW/m2. This characteristic is caused by the tectonic evolution of the basin. During Cenozoic, the litho-sphere stretched intermittently and the crust thinned so that heat conducted from the mantle increased and formed thermal abnormity at depth beneath the basin. | WANG Liangshu LIU Shaowen XIAO Weiyong LI Cheng LI Hua GUO Suiping LIU Bo LUO Yuhui CAI Dongsheng | 2002 | Chinese Science Bulletin2002，47，10： | 10 |
| 3 | Analysis and Testing of Microvibrations Produced by Momentum Wheel Assemblies显示文摘The microvibrations produced by momentum wheel assemblies(MWA) can degrade the performance of instruments with high pointing precision and stability on spacecraft.This paper concentrates on analyzing and testing the microvibrations produced by MWA.We analyze the disturbance sources produced by mass imbalance,structural mode,bearing irregularity and nonlinear stiffness,and random noise;then,test a well-balanced MWA by a highly sensitive measurement system consisting of a Kistler table and an optical tabletop.The results show that the test system has a resolution of less than 0.003 N in the frequency range of 3-300 Hz.The dynamic imbalance of the MWA cannot excite the radial rocking mode,but there are dynamic amplifications when the poly-harmonic disturbances intersect with the structural modes.Especially at high rotational speed(>3 000 rev/min),the main disturbance sources of the MWA come from the bearing irregularity interacting with radial translation mode in the high frequency range.Thus,bearing noise deserves more attention for the well-balanced MWA,and alternative of high quality bearings are proposed to reduce the microvibrations. | ZHOU Weiyong LI Dongxu LUO Qing LIU Kun | 2012 | Chinese Journal of Aeronautics2012，25，4： | 8 |
| 4 | Synthesis of ethylidene diacetate from dimethyl ether,CO and H_2显示文摘Ethylidene diacetate was prepared by reacting dimethyl ether,acetic acid and syngas in the presence of a catalytic system comprising RhI3,PPh3 and CH3I.The effects of reaction temperature,pressure,time and the CO/H2 molar ratio on the conversion of dimethyl ether and the product selectivity were investigated under the same catalyst formulation.Results showed that a maximum conversion of dimethyl ether was obtained when a mixture consisting of 0.3 mol dimethyl ether and 120 ml acetic acid was reacted at 180 ℃ and 3.0 MPa for 10 h at a stirring speed of 600 rpm under a syngas flow with a CO/H2 molar ratio of 2.5,which was catalyzed by a catalyst mixture comprising 0.3 g RhI3,6 g PPh3 and 1.3 g CH3I.The selectivity of ethylidene diacetate increased with temperature,decreased with the CO/H2 molar ratio and exhibited a maximum with pressure. | Dianhua Liu Xin Huang Lei Hu Dingye Fang Weiyong Ying Dasheng Chen | 2010 | Journal of Natural Gas Chemistry2010，19，2： | 2 |
| 5 | Immobilization of polymer-stabilized metal colloids by a modified coordination capture : preparation of supported metal colloids with singular catalytic properties 显示文摘 | Yu Weiyong Liu Manhong Liu Hanfan | 1999 | J Mol Catal A : Chem1999，，142： | 1 |
| 6 | Synthesis of nanoscale platinum colloids by microwave dielectric heating 显示文摘 | Yu Weiyong Tu Weixia Liu Hanfan | 1999 | Langmuir1999，15，1： | 1 |
| 7 | Analysis of c-plane fractal images from z←zα+c for α<0 显示文摘 | WANG Xingyuan LIU Xiangdong ZHU Weiyong | 2000 | Fractals2000，8，3： | 1 |
| 8 | Synthesis of nanosc-ale platinum colloids by microwave显示文摘 | Yu Weiyong Tu Weixia Liu Hanfan | 1999 | Langmuir1999，15，1： | 1 |
| 9 | Analysis of c-plane fraetal images from z←z^α + c for a<0 显示文摘 | Wang Xingyuan Liu Xiangdong Zhu Weiyong | 2000 | Fractals2000，8，3： | 1 |
| 10 | Selective hydrogenation of o-chloronitrobenzene over polymer-stabilized ruthenium colloidal catalysts显示文摘 | Liu Manhong Yu Weiyong liu Hanfan | 1999 | J Mol Catal A:Chem1999，138，23： | 1 |
| 11 | HIF-1α promotes SARS-CoV-2 infection and aggravates inflammatory responses to COVID-19显示文摘Cytokine storm induced by Severe Acute Respiratory Syndrome Coronavirus 2(SARS-CoV-2)is a major pathological feature of Coronavirus Disease 2019(COVID-19)and a crucial determinant in COVID-19 prognosis.Understanding the mechanism underlying the SARS-CoV-2-induced cytokine storm is critical for COVID-19 control.Here,we identify that SARS-CoV-2 ORF3a and host hypoxia-inducible factor-1α(HIF-1α)play key roles in the virus infection and pro-inflammatory responses. | Mingfu Tian Weiyong Liu Xiang Li Peiyi Zhao Muhammad Adnan Shereen Chengliang Zhu Shanyu Huang Siyu Liu Xiao Yu Miaomiao Yue Pan Pan Wenbiao Wang Yongkui Li Xulin Chen Kailang Wu Zhen Luo Qiwei Zhang Jianguo Wu | 2021 | Signal Transduction and Targeted Therapy2021，6，9： | 1 |
| 12 | Preparation and characterization of polymer-stabilized ruthenium-platinum and ruthenium-palladium bimetallic colloids and their catalytic properties for hydrogenation of o-chloronitrobenzene 显示文摘 | Yu Weiyong Liu Hanfan | 1999 | Journal of Colloid and Interfaces1999，214，： | 1 |
| 13 | Analysis of c-plane fractal images from z←za + c for α< 0 显示文摘 | Wang Xingyuan Liu Xiangdong Zhu Weiyong | 2000 | Fractals2000，8，3： | 1 |
| 14 | Distal axis sulfide mineralization on the ultraslow-spreading Southwest Indian Ridge:an LA-ICP-MS study of pyrite from the East Longjing-2 hydrothermal field显示文摘The newly discovered East Longjing-2 hydrothermal field(ELHF-2)is located on the Dragon Horn oceanic core complex of the ultraslow-spreading Southwest Indian Ridge,approximately 12 km from the ridge axis.This study measured the chemical compositions of pyrite from ELHF-2 using a laser ablation inductively coupled plasma mass spectrometry(LA-ICP-MS)to investigate the genesis of the field.Three generations of pyrite were classified,and found that:Py1 and Py2,rich in V,Mn,U,and Se,occur in altered basalt debris and the silica alteration matrix,respectively.Py3 was mainly intergrown with chalcopyrite in quartz veins and had higher Cu,In,Ag,Sb,and Au contents than Py1 and Py2.Some elements,such as Au,Se,and Pb,are likely presented as direct substitution with Fe^(2+)in pyrite,while Cu,Zn,Co,Ni,and Ag probably occur both as direct substitution with Fe and as distributed micro-to nanoparticle-sized sulfides.Meanwhile,the occurrence of V,Mn,and U is likely presented as oxide inclusions.Trace element geochemistry suggested that the pyrite was formed under hightemperature conditions,and the ore forming elements were likely derived from ultramafic rocks.In addition,Py1and Py2 were formed under higher water/rock ratio and higher temperature conditions,with more seawater involvement compared with Py3.The formation of ELHF-2 was probably driven by exothermic serpentinization reactions with an additional magmatic heat.This study shows that high-temperature hydrothermal circulation driven by magmatic activity can be developed on distal rift flank areas of magma-starved ultraslow-spreading ridges. | Shili Liao Chuanwei Zhu Jianping Zhou Weiyong Liu Junyu Yu Jin Liang Weifang Yang Wei Li Jia Liu Chunhui Tao | 2021 | Acta Oceanologica Sinica2021，40，5： | 1 |
| 15 | Analysis of α-plane fractal images from Z← Z^α+ c for α<0 显示文摘 | Wang Xingyuam Liu Xiangdong Zhu Weiyong | 2000 | Fractals2000，8，3： | 1 |
| 16 | EdgeKeeper: a trusted edge computing framework for ubiquitous power Internet of Things显示文摘Ubiquitous power Internet of Things(IoT)is a smart service system oriented to all aspects of the power system,and has the characteristics of universal interconnection,human-computer interaction,comprehensive state perception,efficient information processing,and other convenient and flexible applications.It has become a hot topic in the field of IoT.We summarize some existing research work on the IoT and edge computing framework.Because it is difficult to meet the requirements of ubiquitous power IoT for edge computing in terms of real time,security,reliability,and business function adaptation using the general edge computing framework software,we propose a trusted edge computing framework,named“EdgeKeeper,”adapting to the ubiquitous power IoT.Several key technologies such as security and trust,quality of service guarantee,application management,and cloud-edge collaboration are desired to meet the needs of the edge computing framework.Experiments comprehensively evaluate EdgeKeeper from the aspects of function,performance,and security.Comparison results show that EdgeKeeper is the most suitable edge computing framework for the electricity IoT.Finally,future directions for research are proposed. | Weiyong YANG Wei LIU Xingshen WEI Zixin GUO Kangle YANG Hao HUANG Longyun QI | 2021 | Frontiers of Information Technology & Electronic Engineering2021，22，3： | 1 |
| 17 | Analysis of c-plane fractal images from for 显示文摘 | Wang Xingyuan Liu Xiangdong Zhu Weiyong | 2000 | Fractals2000，8，3： | 1 |
| 18 | Data-driven group decision making for diagnosis of thyroid nodule显示文摘Emerging information technologies’ integration into various fields has enhanced the development of these fields. Large volumes of data have been accumulated in this process. The accumulated data offer opportunities and challenges for people facing practical problems. On the one hand, it is essential to depend on a group’s capabilities rather than an individual’s capabilities to handle practical problems because the individual may lack sufficient expertise and experience to use data. In this situation, the practical problems can be considered as group decision making(GDM) problems. On the other hand, the accumulated data can help generate quality solutions to GDM problems. To obtain such solutions under the assumption that the accumulated data regarding a specific decision problem are available, this paper proposes a data-driven GDM method. In the method, decision makers’ weights are learned from historical overall assessments and the corresponding gold standards, while criterion weights are learned from historical overall assessments and the corresponding decision matrices. The learned expert weights and criterion weights are used to produce the aggregated assessments, from which alternatives are compared or the overall conclusion is made. In a tertiary hospital located in Hefei, Anhui Province, China, the proposed method is applied to aid radiologists in diagnosing thyroid nodules. | Chao FU Wenjun CHANG Weiyong LIU Shanlin YANG | 2019 | Science China(Information Sciences)2019，62，11： | 1 |
| 19 | Analysis of c-plane fractal images from z←zα +c for α<0 显示文摘 | Wang Xingyuan Liu Xiangdong Zhu Weiyong | 2000 | Fractals2000，8，3： | 1 |
| 20 | Synthesis of nanoscale platinum colloids by microwave dielectric heating显示文摘 | Yu Weiyong Tu Weixia Liu Hanfan | 1999 | Langmuir1999，15，11： | 1 |
您所在的机构暂未开通此部分的功能，请联系管理员