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science{1.(Information sciences) 2012年第5期55卷 1073-1081页

作者： LIN xiao 1,2,SHENG Bin 1,MA LiZhuang 1,SHEN yang 1 & CHEN ZhiHua 3 1 department of Computer science and engineering,shanghai Jiao Tong university,shanghai 200240,china 2 Academy of Information technology.Luoyang Normal university,Luoyang 471022,china 3 department of Computer science and engineering,East china university of science and technology.shanghai 200237,china department of Computer {1. and engineering Shanghai Jiao Tong University Shanghai China Academy of Information technology Luoyang Normal University Luoyang China department of Computer {1. and engineering East China University of Science and Technology Shanghai China

In this paper we propose an optimized seam-carving approach for anti-shearing image *** image/video seam-carving strategy only focuses on deleting the pixels along 8-connected seams,which may lead to the obvious information loss during *** the traditional seam-carving methods,our approach can construct a seamlet to handle the discontinuous pixels and further achieve an optimized image resizing results with *** particular,to suppress zigzag artifacts,we introduce the anti-shearing energy into the seamlet generation,which includes two steps:1. the energy map is formalized by using Gabor filtering and the saliency map;2) The energy computation is optimized in Gabor feature space to obtain the resizing results without the connectivity *** experimental results and comparisons show the effectiveness of our method.

关键词： image resizing seamlet carving saliency map

An improved approach to the efficient construction of and search operations in motion graphs

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science{1.(Information sciences) 2012年第5期55卷 1042-1051页

作者： GAO Yan 1,CHEN ZhiHua 2,CHEN MinGang 3 & SHEN yang 3 1 Software engineering Institute,East china Normal university,shanghai 200062,china 2 department of Computer science and engineering,East china university of science and technology.shanghai 200237,china 3 department of Computer science and engineering,shanghai Jiao Tong university,shanghai 200240,china Software engineering Institute East China Normal University Shanghai China department of Computer {1. and engineering East China University of Science and Technology Shanghai China department of Computer {1. and engineering Shanghai Jiao Tong University Shanghai China

Motion graphs have been widely used as an effective technique in the synthesis of human *** synthesize well-formed motions,motion graphs require smooth transitions and good ***,the time and costs grow quadratically as the graph size *** this paper,we present a method to set up a hierarchical structure,called a structure *** coarse level of this graph models different motion categories and their transitions,and the fine level mainly captures different motion *** interpolation space method is used to improve the graph connectivity at the fine *** structure guides the establishment of a faster and more realistic graphical *** the building process,this structure also helps with searching the motion graph,by performing a traverse search and placing the findings into a direct look-up table or local search ***,when there is no direct link between the different motions,a navigation map is introduced to conduct an appropriate search path via a series of transition motion *** experimental results indicate that our approach could lower the computation time in construction and searching,while simultaneously providing a richer variety of motion styles.

关键词： motion graph structure table registration curve motion interpolation

Large-scale P2PVOD system:Focusing on clients

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science{1.(Information sciences) 2011年第8期54卷 1677-1690页

作者： HUANG Yan 1.xU Ke 2,LI HaiTao 2 , CAO yang 1.& YAO xin 1.1.{1. SynaCast Media Tech Co.,Ltd,{1. 201.04,china 2 department of Computer science & technology.Tsinghua university,Beijing 1.0084,china shanghai SynaCast Media Tech Co. Ltd Shanghai China department of Computer {1. & technology Tsinghua University Beijing China

Using P2P network to provide video on demand (VOD) service can support large-scale users so as to save the bandwidth cost of *** VOD must support VCR characters (drag,pause,randomly choosing watching position,etc.),building a large-scale expansion of high-performance VOD system still faces huge *** paper first presents a P2P based reference model,defines the design object,and analyzes the *** then taking PPLive demand system as an example,it gives client-based solutions,including disk cache-out strategy,memory cache prefetch strategy,maintaining relations between neighbors,task scheduling,data upload strategies and so ***-demand systems are putting into practice at present with satisfactory fluency and drag *** largest number of simultaneous online users is over 21.000,and online video data is over 700. Compared with traditional client-server model,the average bandwidth saving rate of servers is 88% or more,and the bandwidth saving rate of user-number's the peak value can be up to 93%.

关键词： P2P VOD server bandwidth saving rate fluency drag delay

l-SkyDiv query:Effectively improve the usefulness of skylines

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science{1.(Information sciences) 2010年第9期53卷 1785-1799页

作者： HUANG ZhenHua1.2*,xIANG yang1.& LIN ZiYu3 1.1. of Computer science and technology.Tongji university,shanghai 201.04,china 2The Key Laboratory of Embedded System and Service Computing,Ministry of Education,Tongji university,shanghai 200092,china 3{1. of Computer science and technology.Peking university,Beijing 1.0871.china department of Computer {1. and technology Tongji University Shanghai China The Key Laboratory of Embedded System and Service Computing Ministry of Education Tongji University Shanghai China department of Computer {1. and technology Peking University Beijing China

Skyline query processing has recently received a lot of attention in database *** a set of multi-dimensional objects,the skyline query finds the objects that are not dominated by *** the best of our knowledge,the existing researches mainly focus on how to efficiently return the whole skyline ***,as the cardinality and dimensionality of input dataset increase,the number of skylines grows exponentially,and hence this "huge" skyline set is completely useless to *** by the above fact,in this paper,we present a novel type of l-SkyDiv query,which only returns l skylines having maximum diversity,to improve the usefulness of skyline ***,we prove that the l-SkyDiv query belongs to the NP-Hard problem theoretically,and propose three efficient heuristic algorithms whose time complexities are polynomial to fast implement the proposed ***,we present detailed theoretical analyses and extensive experiments,demonstrating that our algorithms are both efficient and effective.

关键词： skyline query diversity heuristic algorithm query optimization performance evaluation

Modeling Study of the Particle Pinning Effect on the Grain Boundary Movement

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Journal of Iron and Steel Research International 2011年第S1期18卷 342-345页

作者： WANG xue-lun 1.fu Li-ming 2,WANG Wei 3,JIA Zhi-xin 1.(1.Rizhaosteel {1.Center,Rizhao Iron and Steel Co Ltd.Rizhao 276806,china 2.School of Materials science and engineering,shanghai Jiaotong university,shanghai 200240 china 3 department of Structural Steels,Baosteel Research Institute,shanghai 201.00,china) Rizhao Iron & Steel Co Ltd Rizhaosteel Technol Ctr Rizhao 276806 Peoples R China shanghai Jiao Tong Univ Sch Mat Sci & Engn Shanghai 200240 Peoples R China Baosteel Res Inst Dept Struct Steels Shanghai 201900 Peoples R China

In this work,based on the classical grain boundary (GB) formula and the principle of work-energy conversion,a new physically-based model has been developed to predict the particle pinning force concerning the interaction between second phase particles (SPPs) and the moving *** effect of particles pinning on the GB movement is *** modeling results can be applied to quantitatively determine the critical numbers of SPPs required for complete pining the grain growth,such as the critical SPPs number of the unit GB area,the critical number for single grain stagnation,the critical volume fraction of particles at a given particle *** predictions are in good agreement with the experimental results by Gladman.

关键词： the second-phase particle pinning force physical-based model

Synergistic Effects of Glutamine Deprivation and Metformin in Acute Myeloid Leukemia

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Current Medical science 2024年第4期44卷 799-808页

作者： Tong-yuan LIU xing fu Ying {1. Jia GU Min xIAO Deng-ju LI department of Hematology Tongji HospitalTongji Medical CollegeHuazhong University of Science and TechnologyWuhan 430030China

Objective The metabolic reprogramming of acute myeloid leukemia(AML)cells is a compensatory adaptation to meet energy requirements for rapid *** study aimed to examine the synergistic effects of glutamine deprivation and metformin exposure on AML *** SKM-1.cells(an AML cell line)were subjected to glutamine deprivation and/or treatment with metformin or bis-2-(5-phenylacetamido-1.2,4-thiadiazol-2-yl)ethyl sulfide(BPTES,a glutaminase inhibitor)or *** viability was detected by Cell Counting Kit-8(CCK-8)assay,and cell apoptosis and reactive oxygen species(ROS)by flow *** blotting was conducted to examine the levels of apoptotic proteins,including cleaved caspase-3 and poly(ADP-ribose)polymerase(PARP).Moreover,the human long noncoding RNA(lncRNA)microarray was used to analyze gene expression after glutamine deprivation,and results were confirmed with quantitative RT-PCR(qRT-PCR).The expression of metallothionein 2A(MT2A)was suppressed using *** growth and apoptosis were further detected by CCK-8 assay and flow cytometry,respectively,in cells with MT2A *** Glutamine deprivation or treatment with BPTES inhibited cell growth and induced apoptosis in SKM-1.*** lncRNA microarray result showed that the expression of MT family genes was significantly upregulated after glutamine ***2A knockdown increased apoptosis,while proliferation was not affected in SKM-1.*** addition,metformin inhibited cell growth and induced apoptosis in SKM-1.*** glutamine deprivation and metformin enhanced the sensitivity of SKM-1.cells to ***,the combination of glutamine deprivation with metformin exhibited synergistic antileukemia effects on SKM-1.*** Targeting glutamine metabolism in combination with metformin is a promising new therapeutic strategy for AML.

关键词： glutamine metformin acute myeloid leukemia metallothionein

Physically-based approach to analyze rainfall-triggered landslide using hydraulic gradient as slide direction

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Journal of Zhejiang university-{1. A(Applied Physics & engineering) 2012年第12期13卷 943-957页

作者： Qi-hua RAN1.Dan-yang SU1.Qun QIAN1.xu-dong {1.2,Guang-qian WANG1.2,Zhi-guo HE3 (1.2} of Hydraulic engineering,Zhejiang university,Hangzhou 31.058,china) (2State Key Laboratory of Hydroscience and engineering,Tsinghua university,Beijing 1.0084,china) (3department of Ocean science and engineering,Zhejiang university,Hangzhou 31.058,china) department of Hydraulic {1. Zhejiang University Hangzhou China State Key Laboratory of Hydroscience and {1. Tsinghua University Beijing China department of Ocean {1. and engineering Zhejiang University Hangzhou China

An infinite slope stability numerical model driven by the comprehensive physically-based integrated hydrology model(InHM) is *** this approach,the failure plane is assumed to be parallel to the hydraulic gradient instead of the slope *** method helps with irregularities in complex terrain since depressions and flat areas are allowed in the *** present model has been tested for two synthetic single slopes and a small catchment in the Mettman Ridge study area in Oregon,United States,to estimate the shallow landslide *** results show that the present approach can reduce the simulation error of hydrological factors caused by the rolling topography and depressions,and is capable of estimating spatial-temporal variations for landslide susceptibilities at simple slopes as well as at catchment scale,providing a valuable tool for the prediction of shallow landslides.

关键词： Shallow landslide Infinite slope stability model Hydraulic gradient Physically-based hydrology model Integrated hydrology model(InHM)

Efficient and Stable Inverted Perovskite Solar Modules Enabled by Solid-Liquid Two-Step Film Formation

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Nano-Micro Letters 2024年第9期16卷 571-582页

作者： Juan Zhang xiaofei Ji xiaoting Wang Liujiang Zhang Leyu Bi Zhenhuang Su xingyu Gao Wenjun Zhang Lei Shi Guoqing Guan Abuliti Abudula xiaogang Hao Liyou yang {1. fu Alex K.‑Y.Jen Linfeng Lu Graduate School of science and {1. Hirosaki University3‑BunkyochoHirosaki 036‑8561Japan department of Materials {1. and engineering Department of ChemistryHong Kong Institute for Clean EnergyCity University of Hong Kong KowloonHong Kong 999077People’s Republic of China The Interdisciplinary Research Center Shanghai Advanced Research InstituteChinese Academy of SciencesShanghai 201210People’s Republic of China shanghai Synchrotron Radiation Facility(SSRF) Zhangjiang LabShanghai Advanced Research InstituteChinese Academy of SciencesShanghai201204People’s Republic of China JINNENG Clean Energy technology.Ltd. Jinzhong 030300ShanxiPeople’s Republic of China Hangzhou Zhongneng Photoelectricity technology.Co. Ltd.Hangzhou 310018People’s Republic of China College of Chemical engineering and {1. Taiyuan University of TechnologyTaiyuan 030024People’s Republic of China Institute of Regional Innovation Hirosaki University3‑BunkyochoHirosaki 036‑8561Japan

A considerable efficiency gap exists between large-area perovskite solar modules and small-area perovskite solar *** control of forming uniform and large-area film and perovskite crystallization is still the main obstacle restricting the efficiency of *** this work,we adopted a solid-liquid two-step film formation technique,which involved the evaporation of a lead iodide film and blade coating of an organic ammonium halide solution to prepare perovskite *** method possesses the advantages of integrating vapor deposition and solution methods,which could apply to substrates with different roughness and avoid using toxic solvents to achieve a more uniform,large-area perovskite ***,modification of the NiO_(x)/perovskite buried interface and introduction of Urea additives were utilized to reduce interface recombination and regulate perovskite *** a result,a large-area perovskite film possessing larger grains,fewer pinholes,and reduced defects could be *** inverted PSM with an active area of 61.56 cm^(2)(1.×1. cm^(2)substrate)achieved a champion power conversion efficiency of 20.56%and significantly improved *** method suggests an innovative approach to resolving the uniformity issue associated with large-area film fabrication.

关键词： Inverted perovskite solar cells Perovskite solar modules Two-step film formation Crystallization Defect passivation

Molecular-level proton acceptor boosts oxygen evolution catalysis to enable efficient industrial-scale water splitting

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Green Energy & Environment 2024年第2期9卷 344-355页

作者： Yaobin Wang Qian Lu xinlei Ge Feng Li Le Chen Zhihui Zhang Zhengping fu Yalin Lu {1. Song Yunfei Bu Jiangsu Collaborative Innovation Center of Atmospheric Environment and Equipment technology.CICAEET) Jiangsu Key Laboratory of Atmospheric Environment Monitoring and Pollution Control(AEMPC)UNIST-NUIST Energy and Environment Jointed Lab(UNNU)School of Environmental Science and TechnologyNanjing University of Information Science and Technology(NUIST)219 NingliuNanjing210044China Laboratory of Advanced Materials Shanghai Key Laboratory of Molecular Catalysis and Innovative MaterialsFudan University220 HandanShanghai200433China Jiangsu Key Laboratory of Advanced Materials and technology School of Petrochemical EngineeringChangzhou University1 GehuChangzhou213164China Anhui Laboratory of Advanced Photon science and {1. University of Science and Technology of China(USTC)96 JinzhaiHefeiAnhui 230026China School of Chemistry and Chemical engineering Nanjing University of Science and Technology200 Xiaolingwei210094China

Industrial water splitting has long been suppressed by the sluggish kinetics of the oxygen evolution reaction(OER),which requires a catalyst to be ***,we propose a molecular-level proton acceptor strategy to produce an efficient OER catalyst that can boost industrial-scale water ***-level phosphate(-PO_(4))group is introduced to modify the surface of PrBa_(0.5)Ca_(0.5)Co_(2)O_(5)+δ(PBCC).The achieved catalyst(PO_(4)-PBCC)exhibits significantly enhanced catalytic performance in alkaline *** on the x-ray absorption spectroscopy results and density functional theory(DFT)calculations,the PO_(4)on the surface,which is regarded as the Lewis base,is the key factor to overcome the kinetic limitation of the proton transfer process during the *** use of the catalyst in a membrane electrode assembly(MEA)is further evaluated for industrial-scale water splitting,and it only needs a low voltage of 1.66 V to achieve a large current density of 1.A cm^(-2).This work provides a new molecular-level strategy to develop highly efficient OER electrocatalysts for industrial applications.

关键词： Oxygen evolution reaction Nanofiber Water splitting Proton acceptor Perovskite