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Science China Earth Sciences 2004年第1期47卷 68-77页

作者： liu jinling wang weiming Nanjing Institute of Geology and Palaeontology Chinese Academy of Sciences Nanjing 210008 China Nanjing Institute of Geology and Palaeontology Chinese Academy of Sciences Nanjing 210008 China

This paper inspects the relationship between Homo erectus from Beijing, Nanjing and Chenjiawo on the viewpoint of environmental variations. Pieces of evidence show that Nanjing and Chenjiawo Homo erectus lived in glacial age at the Marine Oxygen Isotope Stage (MIS) 16, while Homo erectus pekinensis in major interglacial age at MlSs 15-13. It is also recovered that the cave deposits in Tangshan, Nanjing, and Zhoukoudian, Beijing, as well as the deposits at the Homo erectus site in Chenjiawo, have undergone some similar development process. All of them originated from early-middle Middle Pleistocene, and have gone through the test of the major glacial age at MIS 16 and the major interglacial period at the paleosol stage S5. At the same time, they were also closely connected with some environment events, such as the uplift of the Qinghai-Xizang Plateau, the formation of glaciations and the loess accumulations.

关键词： Homo erectus from Beijing, Nanjing and Chenjiawo, climate and environment, comprehensive comparisons.

Climate indexes of phytoliths from Homo erectus' cave deposits in Nanjing

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Chinese Science Bulletin 2003年第18期48卷 2005-2009页

作者： weiming wang jinling liu Xiaodan Zhou Nanjing Institute of Geology and Palaeontology Chinese Academy of Sciences Nanjing 210008 China

A study on phytoliths and their climate indexes is carried out from Homo erectus?cave deposits in HuluCave, Nanjing. Evidence shows that phytolith assemblages of the cave deposits are dominated by the cold resistant types with a lower warm index, reflecting an overall cold inclined climate. This possibly connects the cave deposits with glacial climate to a great extent, which is in accordance with thenorthern fauna revealed by fossil mammals and temperateclimate indicated by pollen assemblages. According to the distributional state of the phytoliths and their climate in-dexes on 4 profiles in the cave, it is revealed that profiles Ⅰand Ⅱ display certain cold/warm, and dry/wet fluctuations; profile Ⅲ shows a humid and cold condition with the high-est humility in the cave deposits; while profile Ⅳ indicates a possible quick accumulating process because of its stableclimate indexes except for its bottom and top.

关键词： climate indexes phytoliths Nanjing Homo erectus cave deposits.

Genetic basis of adult-onset nephrotic syndrome and focal segmental glomerulosclerosis

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Frontiers of Medicine 2017年第3期11卷 333-339页

作者： Jian liu weiming wang Institute of Nephrology Shanghai Jiao Tong University School of Medicine Shanghai 200025 China Department of Nephrology Ruijin Hospital Affiliated to Shanghai Jiao Tong University School of Medicine Shanghai 200025 China

Nephrotic syndrome （NS） is one of the most common glomerular diseases with signs of nephrosis, heavy proteinuria, hypoalbuminemia, and edema. Dysfunction of glomerular filtration barrier causes protein loss through the kidneys. Focal segmental glomerulosclerosis （FSGS） accounts for nearly 20% of NS among children and adults. Adult-onset FSGS/NS is often associated with low response to steroid treatment and immunosup- pressive medication and poor renal survival. Several genes involved in NS and FSGS have been identified by linkage analysis and next-generation sequencing. Most of these genes encode proteins and are highly expressed in glomerular podocytes, which play crucial roles in slit-diaphragm signaling, regulation of actin cytoskeleton dynamics and maintenance of podocyte integrity, and cell-matrix interactions. In this review, we focus on the recently identified genes in the adult-onset NS and FSGS and discuss clinical significance of screening of these genes.

关键词： nephrotic syndrome focal segmental glomerulosclerosis genetic

A review of pulse electrolysis for efficient energy conversion and chemical production

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Journal of Energy Chemistry 2021年第8期30卷 69-82,I0003页

作者： Tao liu jinling wang Xuejing Yang Ming Gong Department of Chemistry and Shanghai Key Laboratory of Molecular Catalysis and Innovative Materials Fudan University200438 ShanghaiChina National Engineering Laboratory for Industrial Wastewater Treatment East China University of Science and Technology200237 ShanghaiChina

Electrochemical transformation emerges as an important solution to sustainable energy conversion and chemical *** electrolytic systems usually operate under galvanostatic or potentiostatic conditions that sometimes result in unsatisfactory efficiencies or *** electrolysis by pulsating and programming the potentials/currents can feature unique tunability to the electrodeelectrolyte interface properties that can give rise to drastically different electrochemical behaviors compared to the steady-state *** invented almost 100 years ago,pulse electrolysis has received little attention over the period,but has recently attracted a revived focus toward the energyefficient *** review will summarize the history and recent efforts of pulse electrolysis in three categories:water electrolysis,CO_(2)electrolysis and other *** each section,the advantage of pulse electrolysis over steady-state electrolysis will be discussed in detail,giving a comprehensive overview of the pulse effect on the electrolytic ***,we will provide our vision of future directions in pulse electrolysis based on previous works.

关键词： Pulse electrolysis Energy conversion Chemical production Water splitting CO_(2) reduction Energy electrocatalysis

Joint Modeling of Citation Networks and User Preferences for Academic Tagging Recommender System

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Computers, Materials & Continua 2024年第6期79卷 4449-4469页

作者： weiming Huang Baisong liu Zhaoliang wang Faculty of Electrical Engineering and Computer Science Ningbo UniversityNingbo315211China Inner Mongolia Metal Material Research Institute Baotou014000China

In the tag recommendation task on academic platforms,existing methods disregard users’customized preferences in favor of extracting tags based just on the content of the ***,it uses co-occurrence techniques and tries to combine nodes’textual content for *** still do not,however,directly simulate many interactions in network *** order to address these issues,we present a novel system that more thoroughly integrates user preferences and citation networks into article labelling ***,we first employ path similarity to quantify the degree of similarity between user labelling preferences and articles in the citation ***,the Commuting Matrix for massive node pair paths is used to improve computational ***,the two commonalities mentioned above are combined with the interaction paper labels based on the additivity of Poisson *** addition,we also consider solving the model’s parameters by applying variational *** results demonstrate that our suggested framework agrees and significantly outperforms the state-of-the-art baseline on two real datasets by efficiently merging the three relational *** on the Area Under Curve(AUC)and Mean Average Precision(MAP)analysis,the performance of the suggested task is evaluated,and it is demonstrated to have a greater solving efficiency than current techniques.

关键词： Collaborative filtering citation networks variational inference poisson factorization tag recommendation

Electrical-field induced nonlinear conductive behavior in dense zirconia ceramic

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Journal of Materials Science & Technology 2017年第8期33卷 897-900页

作者： Yan Gao Fangzhou liu Dianguang liu jinling liu Yiguang wang Linan An State Key Laboratory of Traction Power School of Mechanics and EngineeringSouthwestfiaotong UniversityChengdu 610031China School ofMateriais Sdence and Engineering Northwestern Polytechnical UniversityXi'an 710072China Department ofMateriais Sdence and Engineering Advanced Materials Processing and Analysis CenterUniversity of Central FloridaOrlandoFL 32816USA

The effect of the applied electric field on the conductive behavior of zirconia ceramics is studied by measuring its initial current-voltage curve at various temperatures. The results show that when the field strength is higher than the threshold for flash-sintering, the curves exhibit a nonlinear behavior by having an additional current on top of the linear current according to Ohm＇s law. Analyzing its transport behavior reveals that the additional current density is due to the extra oxygen vacancies induced by the electric field. The formation rate of the extra vacancies and associated current was related to the field strength.

关键词： Flash sintering Non-linear conductivity Zirconia Electric field effect

In-situ synthesis of Al(76.8)Fe(24) complex metallic alloy phase in Al-based hybrid composite

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Journal of Materials Science & Technology 2017年第10期33卷 1177-1181页

作者： Ke Zhao Baobao Cao jinling liu Yiguang wang Linan An Science and Technology on Therrnostruetural Composite Materials Laboratory Northwestern Polytechnical University Xi'an 710072. China School of Materials Science and Engineering Southwest Jiaotong University Chengdu 610031 China State Key Laboratory of Traction Power School of Mechanics and Engineering Southwest Jiaotong University Chengdu 610031 China Department of Materials Science and Engineering. Advanced Materials Processing and Analysis Center University of Central Florida Orlando FL 32816 USA

The complex metallic alloy（CMA）, Al（76.8）Fe（24）, was in-situ synthesized in the Al-based hybrid composite by powder metallurgy technique. The structural analysis by X-ray diffraction, scanning electron microscopy,and transmission electron microscopy indicated that the Al（76.8）Fe（24） CMA phase was formed by diffusion of Fe atoms into the Al matrix during the sintering stage. The formation of the CMA phase was mainly determined by the sintering temperature which was just above the eutectic temperature of Al–Fe. Moreover,the fully dense Al-based hybrid composite was obtained and exhibited ultrahigh strength ～1100 MPa,indicating that this method is expected to be effective in producing CMA particle reinforced Al-based hybrid composite.

关键词： Complex metallic alloy(CMA) Mechanical alloying Aluminum Hybrid composites

Dual-functional conductive nanofilm absorber

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Nano Research 2023年第12期16卷 13375-13380页

作者： Hongyan liu Zheng Xie weiming liu Hongdong Li Yue Yan Xiaoli wang Beijing Institute of Aeronautical Materials Beijing 100095China College of Rare Earth and Faculty of Materials Metallurgy and Chemistry Jiangxi University of Science and TechnologyGanzhou 341000China CAS Key Laboratory of Nanosystem and Hierarchical Fabrication National Center for Nanoscience and TechnologyBeijing 100190China Center of Materials Science and Optoelectronics Engineering University of Chinese Academy of SciencesBeijing 100049China

Converting solar energy by to other forms of energy has attracted a lot of interest from academy to ***,the overall utilization efficiency of solar energy is inferior due to the limited effective solar spectrum ***,in order to utilize the broadband solar spectrum more efficiently,a novel hybrid absorber structure was proposed,which consists of a four-layer planar nanofilm with dual functions of heat absorption and *** average absorption in the visible range is larger than 0.95,and in the near-infrared spectral region,the average absorption is still larger than *** overall absorption of the absorber is over 0.86,while the thermal emittance is lower than 0.04,which can lead to remarkable thermal utilization ***,the full range of the solar irradiance can be utilized by incorporating the photocatalytic TiO_(2) layer into the absorber,which is active in the ultraviolet spectral *** addition to the broadband spectral usage,the virtues of inexpensiveness and environmental friendliness make it a facile alternative to be applied in solar energy transformation.

关键词： absorber photocatalysis multilayer film heat

Mechanism of corrosion behavior induced by precipitates under plastic compressive stress in Mg-Gd-Y alloys

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Journal of Rare Earths 2024年第12期42卷 2183-2195页

作者： Lele liu Ping wang Yimeng wang weiming Li Min Xu Haoyan Xue School of Materials and Chemical Engineering Xi'an Technological University

Through independently developed stress-loading equipment, stress corrosion tests on Mg-Gd-Y alloy were conducted in a 3.5 wt% NaCl solution. The effects of plastic compressive stress on the corrosion behavior of the alloy were thoroughly investigated using scanning electron microscopy（SEM） and transmission electron microscopy（TEM） among other microscopic analysis techniques. The results indicate that the alloy mainly consists of a-Mg grains, Mg24Y5phase, Mg5Gd phase, and LPSO phase. The corrosion behavior of the Mg-Gd-Y alloy is significantly influenced by the microstructure of the interface between the precipitates and the matrix, the potential difference, and the stress state. In the unstressed state, the Mg24Y5phase first induces corrosion at the edges of the a-Mg grain boundaries, which then spreads internally. Upon the application of plastic stress, the corrosion-inducing capability of the LPSO phase on a-Mg grains notably increases. This discovery provides new insights into the mechanisms by which plastic compressive stress affects the corrosion behavior of Mg-Gd-Y alloys and offers an important basis for the theoretical research and anti-corrosion design in the engineering applications of this alloy.

关键词： Corrosion induction mechanisms LPSO Mg-Gd-Y alloy Plastic compressive stress Precipitate phases Rare earths

Integrity monitoring scheme for single-epoch GNSS PPP-RTK positioning

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Satellite Navigation 2023年第1期4卷 13-27,I0002页

作者： Wenhao Zhang jinling wang University of New South Wales(UNSW) SydneyAustralia

Integrity monitoring for precise point positioning is critical for safety-related *** the increasing demands of high-accuracy autonomous navigation for unmanned ground and aerial vehicles,the integrity monitoring method of high-precision positioning has become an essential *** high precision Global Navigation Satellite Systems(GNSS)positioning is widely used in such applications,there are still many difculties in the integrity monitoring method for the multi-frequency multi-GNSS undiferenced and uncombined Precise Point Positioning(PPP).The main difculties are caused by using the measurements of multiple epochs in *** on the baseline Multiple Hypothesis Solution Separation(MHSS)Advanced Receiver Autonomous Integrity Monitoring(ARAIM)algorithm,this paper discusses the feasibility of the pseudorange-based baseline ARAIM method on the single-epoch PPP based on Real-Time Kinematic(RTK)networks(PPP-RTK)framework to overcome these *** addition,a new scheme is proposed to transfer the conventional PPP process into the single-epoch PPP-RTK *** simulation results using the proposed model are analyzed in this *** Protection Levels(PLs)estimated by PPP Wide-lane Ambiguity Resolution(PPP-WAR)model with regional corrections can reach the meter level and the PLs estimated by PPP Ambiguity Resolution(PPP-AR)and PPP-RTK models are usually the sub-meter *** a horizontal Alert Limit(AL)of 1.5 m,the global coverage of availability above 99.9%for PPP-WAR,PPP-AR,and PPP-RTK can reach 92.6%,99.4%,and 99.7%*** results using real kinematic data also show that tight PLs can be achieved when the observation conditions are good.

关键词： Integrity monitoring Precise point positioning Multi-GNSS Ambiguity resolution Single-epoch positioning