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The multistage genesis of the giant Dongshengmiao Zn-Pb-Cu deposit in western Inner mongolia,China:Syngenetic stratabound mineralization and metamorphic remobilization

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Geoscience Frontiers 2016年第3期7卷 529-542页

作者： Richen Zhong Wenbo li Civil and Environmental Engineering School University of Science and Technology Beijing Key Laboratory of Orogenic Belts and Crustal Evolution School of Earth and Space SciencesPeking University

The genesis of the giant Dongshengmiao in the northern margin of the North China Block has been debated since its discovery in the 1950 s,because it shows geological and geochemical characteristics with both syngenetic and epigenetic *** has geological settings and sulfur and lead isotopic compositions that are similar with typical SEDEX（sedimentary exhalative） deposit,while the Zn-Pb-Cu mineralization was controlled by shear deformation and metamorphism,showing similarities with orogenic-type *** this contribution,both the syngenetic and epigenetic features of the Dongshengmiao are envisaged,and accounted for in the context of a genetic model with two metallogenic *** pyrite at the Dongshengmiao was mostly recrystallized during metamorphism,but finegrained texture was locally preserved,indicating its syngenetic *** the contrary,all the Zn-Pb-Cu ores observed in this study show characteristics of epigenetic hydrothermal mineralization that controlled by metamorphism and accompanying shear *** sulfur and lead isotopic compositions of sphalerite and galena indicate that they were in situ remobilized from a syngenetic stratabound source,and the oxygen and hydrogen isotopic ratios of ore-fluid indicate that the large-scale remobilization was assisted by metamorphic *** thermodynamic modeling indicates that the orefluid during remobilization has a great potential of transporting *** may account for the abnormally enriched Cu in the remobilized SEDEX *** metamorphic fluid might strip Cu from the fluid source during devolatilization,and overprint it on the Zn-Pb orebodies during remobilization.A secondary flowthrough modeling reveals that Zn- and Cu-sulfides would be preferentially redistributed in Fe-rich carbonates during remobilization,as a result of fluid-rock ***,a multistage genetic model is *** the development of the Proterozoic rift,stratabound Zn-Pb mineralization to

关键词： SEDEX Zn-Pb-Cu metamorphism Remobilization Orogenic-type deposit

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Designing electrolyte additives for lithium metal batteries through multi-factor principle

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journal of Energy Chemistry 2021年第10期30卷 147-148,I0004页

作者： Biyi Xu Yutao li materials Science and Engineering Program and Texas materials Institute The University of Texas at AustinAustinTexas 78712USA

The rapid development of consumer electronic and electric vehicle markets causes the increasing demand for advanced rechargeable ***(li)metal batteries(LmBs)have attracted considerable attention in recent years due to their high energy density[1],since the metallic li anode exhibits the ultra-high theoretical capacity and the lowest electrode potential among various alkali metals[2].

关键词： electrolyte lithium alkali

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Receptor-like protein kinases:Key regulators controlling root hair development in Arabidopsis thaliana

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journal of Integrative Plant Biology 2018年第9期60卷 841-850页

作者： Zhuoyun Wei jia li ministry of Education Key Laboratory of Cell Activities and Stress Adaptations School of Life SciencesLanzhou UniversityLanzhou 730000China

Root hairs are tubular outgrowths specifically differentiated from epidermal cells in a differentiation zone. The formation of root hairs greatly increases the surface area of a root and maximizes its ability to absorb water and inorganic nutrients essential for plant growth and development. Root hair development is strictly regulated by intracellular and intercellular signal communications. Cell surface-localized receptor-like protein kinases （P, LKs） have been shown to be important components in these cellular processes, tn this review, the functions of a number of key P, LKs in regulating Arabidopsis root hair development are discussed, especially those involved in root epidermal cell fate determination and root hair tip growth.

关键词： Receptor-like protein kinases:Key regulators controlling root hair development in Arabidopsis thaliana

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The Virtual Geoscience Workbench, VGW: Open Source tools for discontinuous systems

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Particuology 2010年第2期8卷 100-105页

作者： A. munjiza j. Xiang X. Garcia j.P. Latham G.G. Schiava D'Albano N.W.m. john Department of Engineering Queen Mary London University London UK Department of Earth Science and Engineering Imperial College London UK

In 1989 work began on merging finite and discrete elements. During 1990 algorithmic solutions for the new combined method were developed, together with a C-based implementation known as the Y code. In 2004 these developments and implementations were published as a textbook. Queen mary University of London ~QmUL） and Imperial College are currently engaged in a research project to make Y codes in both 2D and 3D available in Open Source format and with mainly geoscience problems in mind. The result is a set of Open Source tools for Geoscience （VGW）, key components of which are summarised in this paper, together with illustrative range of simulation results. 2009 Chinese Society of Particuology and Institute of Process Engineering, Chinese Academy of Sciences. Published by Elsevier B.V. All rights reserved.

关键词： Combined finite-discrete elementWorkbenchmodellingGeoscience

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Can all the recurrence relations for spherical functions be extended to spheroidal functions

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Science China(Physics,mechanics & Astronomy) 2011年第10期54卷 1775-1782页

作者： TIAN GuiHua li ZhaoYang School of Science Beijing University of Posts and Telecommunications Beijing 100876 China

There are two kinds of recurrence relations for the spherical functions Pml. The first are those with the same m but different l. Thesecond are those with the same l but different m. The spheroidal functions are extensions of the spherical functions. Recurrencerelations of the first kind are obtained for the spheroidal functions in recent studies. Using the shape invariance method in super-symmetric quantum mechanics, we investigate the second type of recurrence relations for the spheroidal functions. The resultsshow that the second kind of recurrence relation can not be extended to the spheroidal functions.

关键词： spheroidal wave functions supersymmetry quantum mechanics super-potential shape-invariance

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Class-Preserving Coleman Automorphisms of Finite Groups with Prescribed Centralizers

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Algebra Colloquium 2017年第2期24卷 351-360页

作者： Zhengxing li Hongwei Gao College of Automation and Electrical Engineering Qingdao University Qingdao Shandong 266071 China School of mathematics and Statistics Qingdao University Qingdao Shandong 266071 China Institute of Applied mathematics of Shandong Qingdao Shandong 266071 China

Let G be a finite group. It is proved that any class-preserving Coleman automorphism of G is an inner automorphism whenever G belongs to one of the following two classes of groups：（1） CN-groups, i.e., groups in which the centralizer of any element is nilpotent; （2） CIT-groups, i.e., groups of even order in which the centralizer of any involution is a 2-group. In particular, the normalizer conjecture holds for both CN-groups and CIT-groups. Additionally, some other results are also obtained.

关键词： class-preserving automorphism Coleman automorphism integral group ring,the normalizer conjecture

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Short-term traffic forecasting based on principal component analysis and a generalized regression neural network for satellite networks

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The journal of China Universities of Posts and Telecommunications 2018年第1期25卷 15-28,36页

作者： liu Ziluan li Xin State Key Laboratory of Networking and Switching Beijing University of Posts and Telecommunications

With the rapid growth of satellite traffic, the ability to forecast traffic loads becomes vital for improving data transmission efficiency and resource management in satellite networks. To precisely forecast the short-term traffic loads in satellite networks, a forecasting algorithm based on principal component analysis and a generalized regression neural network （PCA-GRNN） is proposed. The PCA-GRNN algorithm exploits the hidden regularity of satellite networks and fully considers both the temporal and spatial correlations of satellite traffic. Specifically, it selects optimal time series of spatio-temporally correlated historical traffic from satellites as forecasting inputs and applies principal component analysis to reduce the input dimensions while preserving the main features of the data. Then, a generalized regression neural network is utilized to perform the final short-term load forecasting based on the obtained principal components. The PCA-GRNN algorithm is evaluated based on real-world traffic traces, and the results show that the PCA-GRNN method achieves a higher forecasting accuracy, has a shorter training time and is more robust than other state-of-the-art algorithms, even for incomplete traffic datasets. Therefore, the PCA- GRNN algorithm can be regarded as a preferred solution for use in real-time traffic forecasting for realistic satellite networks.

关键词： satellite networks traffic load forecasting principal component analysis generalized regression neural network

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Nontrivial Solutions of Superquadratic Hamiltonian Systems with Lagrangian Boundary Conditionsand the L-index Theory

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Chinese Annals of mathematics,Series B 2008年第6期29卷 597-610页

作者： Chong li Chungen liU School of mathematical Sciences Nankai University Tianjin 300071 China School of mathematical Sciences and LPmC Nankai University Tianjin 300071 China

In this paper, the authors study the existence of nontrivial solutions for the Hamiltonian systems z（t） = j△↓H（t, z（t）） with Lagrangian boundary conditions, where ^H（t,z）=1/2（^B（t）z, z）＋ ^H（t, z）,^B（t） is a semipositive symmetric continuous matrix and ^H（t, z） = satisfies a superquadratic condition at infinity. We also obtain a result about the L-index.

关键词： L-index Nontrivial solution Hamiltonian systems Lagrangian boundary conditions Superquadratic condition

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Aeroelastic Responses for Wind Turbine Blade Considering Bend-Twist Coupled Effect

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Transactions of Nanjing University of Aeronautics and Astronautics 2016年第1期33卷 16-25页

作者： li Yijin Wang Tongguang jiangsu Key Laboratory of Hi-Tech Research for Wind Turbine Design Nanjing University of Aeronautics and Astronautics

The Euler-Bernoulli beam model coupled with the sectional properties obtained by the variational asymptotic beam sectional analysis(VABS)method is used to construct the blade structure *** the aerodynamic loads calculated by unsteady blade element momentum model with a dynamic inflow and the dynamic stall correction,the dynamics equations of blade are *** Newmark implicit algorithm is used to solve the dynamics *** of the sectional properties and blade structure model are compared with the multi-cell beam method and the ANSYS using shell *** is proved that the method is effective with high ***,the effects on the aeroelastic response caused by bend-twist coupling are *** direction is deflected toward the upwind direction as a result of coupling *** aerodynamic loads and the displacement are reduced.

关键词： variational asymptotic beam sectional analysis (VABS) wind turbine unsteady blade element momen turn theory dynamic stall aeroelastic responses

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model of water-sediment regulation in Yellow River and its effect

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Science China(Technological Sciences) 2011年第4期54卷 924-930页

作者： li GuoYing SHENG lianXi 1 Yellow River Conservancy Commission Zhengzhou 450003China Northeast Normal University Changchun 130024China

Water-sediment regulation of the Yellow River is to regulate and control the flow and sediment transport relationship of the lower reaches through reservoirs on the main streams and tributaries to create balance between water and sediment so that sediment transport capacity of the downstream channels can be maximized,shrinking of channels be contained,and medium flood channel be restored and *** years' research by the Yellow River Conservancy Commission(YRCC) reveals the water and sediment transport relationship that will prevent sedimentation at the downstream river *** on this relationship and coming sediment and water conditions in the Yellow River basin,the YRCC,with maximized use of reservoirs on the main streams and tributaries,has developed three models of water-sediment regulation:single Xiaolangdi Reservoir-dominated regulation,space scale water-sediment match,and mainstream reservoirs joint *** water-sediment regulations based on these three models have resulted in an average drop of 1.5 m in the main channel of the downstream 800 km river and an increase of carrying capacity from 1800 to 4000 m3/***,the wetland ecosystems of estuarine delta has also been improved and restored significantly.

关键词： water-sediment regulation Yellow River effect

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