检索结果-内蒙古大学图书馆

A novel hybrid optimization algorithm and its application in solving complex problem

International Journal of Hybrid Information Technology 2015年第2期8卷 1-10页

作者： Jia, Hao Department of Electrical Engineering Dalian Institute of Science and Technology Dalian116052 China The Provincial Key Laboratory for Computer Information Processing Technology Soochow University Suzhou215006 China

Ant colony optimization (ACO) algorithm is a new heuristic algorithm which has been demonstrated a successful technology and applied to solving complex optimization problems. But the ACO exists the low solving precision and premature convergence problem, particle swarm optimization (PSO) algorithm is introduced to improve performance of the ACO algorithm. A novel hybrid optimization (HPSACO) algorithm based on combining collaborative strategy, particle swarm optimization and ant colony optimization is proposed for the traveling salesman problems in this paper. The HPSACO algorithm makes use of the exploration capability of the PSO algorithm and stochastic capability of the ACO algorithm. The main idea of the HPSACO algorithm uses the rapidity of the PSO algorithm to obtain a series of initializing optimal solutions for dynamically adjusting the initial pheromone distribution of the ACO algorithm. Then the parallel search ability of the he ACO algorithm are used to obtain the optimal solution of solving problem. Finally, various scale TSP are selected to verify the effectiveness and efficiency of the proposed HPSACO algorithm. The simulation results show that the proposed HPSACO algorithm takes on the better search precision, the faster convergence speed and avoids the stagnation phenomena. © 2015 SERSC.

关键词： Traveling salesman problem

来源：评论

学校读者我要写书评

暂无评论

Performance analysis of Fano coding

Performance analysis of Fano coding

引用

IEEE International Symposium on Information Theory

作者： Stanislav Krajči Chin-Fu Liu Ladislav Mikeš Stefan M. Moser Institute of Computer Science Pavol Jozef Safárik University Kosice Slovak Republic Department of Electrical and Computer Engineering National Chiao-Tung University (NCTU) Hsinchu Taiwan Signal and Information Processing Lab ETH Zurich Switzerland

ISBN: (纸本)9781467377058

A rigorous performance analysis of Fano coding is presented, providing an upper bound on the average codeword length of binary and ternary Fano codes for an arbitrary discrete memoryless source. The performance bound is slightly better than Shannon's well-known bound for Shannon coding. As a by-product a novel general lower bound on Shannon entropy is derived that might be of interest also in a different context. This bound is expressed with the help of variational distance and provides a special case of a reverse Pinsker inequality.

关键词： Entropy Channel coding Redundancy Upper bound Random variables Performance analysis

来源：评论

学校读者我要写书评

暂无评论

Experimental Verification of Overlimiting Current by Surface Conduction and Electro-Osmotic Flow in Microchannels

引用

Physical Review Letters 2015年第11期114卷 114501-114501页

作者： Sungmin Nam Inhee Cho Joonseong Heo Geunbae Lim Martin Z. Bazant Dustin Jaesuk Moon Gun Yong Sung Sung Jae Kim Department of Electrical and Computer Engineering Seoul National University Seoul 151-744 Republic of Korea Department of Mechanical Engineering Pohang University of Science and Technology Pohang 790-784 Republic of Korea Department of Chemical Engineering and Mathematics Massachusetts Institute of Technology Cambridge Massachusetts 02139 USA Department of Material Science and Engineering Hallym University Chunchon 200-702 Republic of Korea Big Data Institute and Inter-university Semiconductor Research Center Seoul National University Seoul 151-744 Republic of Korea

Direct evidence is provided for the transition from surface conduction (SC) to electro-osmotic flow (EOF) above a critical channel depth (d) of a nanofluidic device. The dependence of the overlimiting conductance (OLC) on d is consistent with theoretical predictions, scaling as d−1 for SC and d4/5 for EOF with a minimum around d=8 μm. The propagation of transient deionization shocks is also visualized, revealing complex patterns of EOF vortices and unstable convection with increasing d. This unified picture of surface-driven OLC can guide further advances in electrokinetic theory, as well as engineering applications of ion concentration polarization in microfluidics and porous media.

关键词： Porous materials

来源：评论

学校读者我要写书评

暂无评论

The monitoring of land use and land cover change of Sichuan province and Chengdu district, China

The monitoring of land use and land cover change of Sichuan ...

引用

IEEE International Symposium on Geoscience and Remote Sensing (IGARSS)

作者： Shijie Yu Zezhong Zheng Wunian Yang Mingcang Zhu Yong He Zhenlu Yu Shengli Wang Fu Wang Jiang Li School of Resources and Environment Univ. of Electronic Science and Technology of China Chengdu Sichuan PRC State Key Laboratory of Water Resources and Hydropower Engineering Science Wuhan Univ. Wuhan Hubei PRC Ministry of Land and Resources of the China Chengdu Univ. of Technology Chengdu Sichuan PRC Guangxi Key Laboratory for Spatial Information and Geomatics Guilin Guangxi PRC Land and Resources Department of Sichuan Province Chengdu Sichuan PRC Sichuan Institute of Geo-Environment Monitoring Chengdu Sichuan PRC China National Space Administration Earth Observation System and Data Center Beijing PRC CMA National Satellite Meteorological Center Beijing PRC Dep. of Electrical and Computer Engineering Old Dominion Univ. Norfolk VA USA

Land use and land cover change (LUCC) is necessary to explore the factors leading to heavy drought and rainy-flood disaster in some districts of Sichuan province. A method based RS, GIS, GPS and Google earth (GE) is presented to establish LUCC database in Sichuan province and Chengdu district. At first, LUCC is interpreted based on the new temporal images and the land use and land cover database from TM in ***, some ground objects, which could not be identified in the new temporal images, were interpreted utilizing GE with some higher spatial resolution images. Thirdly, the new interpreted LUCC was validated in the field with GPS handheld receiver. Then, LUCC of Sichuan province was updated. A comparative analysis of LUCC between in Sichuan province and in Chengdu district was conducted and the result showed: (1) a large amount of farmland in Sichuan Province was occupied from 2000 to 2005 and the area is 84 573 ha. While construction land gained obviously and the area was 35 828 ha. The dynamic degree of construction land was 111.10 0 / 00 from 2000 to 2005. The LUCC demonstrated that the economy of Sichuan province continued to develop, the cities were overspreading and the urban heat island effect was deteriorated from 2000 to 2005. (2) A large amount of farmland was also occupied in Chengdu district from 2000 to 2005, the area amounted to 12 989 ha. The farmland lost was mainly changed to construction land, amounting to 93%. And the dynamic degree was 117.41 0 / 00 from 2000 to 2005, which was bigger than that in Sichuan province.

关键词： Spatial resolution Global Positioning System Urban areas Thermal pollution Remote sensing Google databases

来源：评论

学校读者我要写书评

暂无评论

Morphology‐Directed Selective Production of Ethylene or Ethane from CO2on a Cu Mesopore Electrode

引用

Angewandte Chemie 2016年第3期129卷

作者： Ki Dong Yang Woo Ri Ko Jun Ho Lee Sung Jae Kim Hyomin Lee Min Hyung Lee Ki Tae Nam Department of Materials Science and Engineering Seoul National University 1 Gwanak-ro Gwanak-gu Seoul 08826 Korea Department of Applied Chemistry Kyung Hee University Yongin Gyeonggi 17104 Korea Department of Electrical and Computer Engineering Big Data Institute Inter-University Semiconductor Research Center Seoul National University 1 Gwanak-ro Gwanak-gu Seoul 08826 Korea Department of Electrical and Computer Engineering Institute of Advanced Machines and Design Seoul National University 1 Gwanak-ro Gwanak-gu Seoul 08826 Korea

The electrocatalytic conversion of CO 2 to value‐added hydrocarbons is receiving significant attention as a promising way to close the broken carbon‐cycle. While most metal catalysts produce C 1 species, such as carbon monoxide and formate, the production of various hydrocarbons and alcohols comprising more than two carbons has been achieved using copper (Cu)‐based catalysts only. Methods for producing specific C 2 reduction outcomes with high selectivity, however, are not available thus far. Herein, the morphological effect of a Cu mesopore electrode on the selective production of C 2 products, ethylene or ethane, is presented. Cu mesopore electrodes with precisely controlled pore widths and depths were prepared by using a thermal deposition process on anodized aluminum oxide. With this simple synthesis method, we demonstrated that C 2 chemical selectivity can be tuned by systematically altering the morphology. Supported by computational simulations, we proved that nanomorphology can change the local pH and, additionally, retention time of key intermediates by confining the chemicals inside the pores.

关键词： CO2-Reduktion Elektrokatalyse Energieumwandlung Nanoelektroden

来源：评论

学校读者我要写书评

暂无评论

Droop control of distributed electric springs for stabilizing future power grid

Droop control of distributed electric springs for stabilizin...

引用

IEEE General Meeting Power& Energy Society

作者： Chee Kwan Lee Nilanjan Ray Chaudhuri Balarko Chaudhuri Ron Hui Singapore Institute for Neurotechnology Singapore Department of Electrical and Computer Engineering National University of Singapore Singapore National University of Singapore Suzhou Research Institute Suzhou China Large Area Processing Program Singapore Institute of Manufacturing Technology Agency for Science Technology and Research Singapore

This paper describes the droop control method for parallel operation of distributed electric springs for stabilizing ac power grid. It provides a methodology that has the potential of allowing reactive power controllers to work in different locations of the distribution lines of an ac power supply and for these reactive power controllers to support and stabilize the ac mains voltage levels at their respective locations on the distribution lines. The control scheme allows these reactive power controllers to have automatically adjustable voltage references according to the mains voltage levels at the locations of the distribution network. The control method can be applied to reactive power controllers embedded in smart electric loads distributed across the power grid for stabilizing and supporting the ac power supply along the distribution network. The proposed distributed deployment of electric springs is envisaged to become an emerging technology potentially useful for stabilizing power grids with substantial penetration of distributed and intermittent renewable power sources or weakly regulated ac power grid.

关键词： Power grids Reactive power Springs Power supplies Automatic voltage control Electric potential

来源：评论

学校读者我要写书评

暂无评论

Gaia data Release 2.: Observations of solar system objects

arXiv

引用

arXiv 2018年

作者： Spoto, F. Tanga, P. Mignard, F. Berthier, J. Carry, B. Cellino, A. Dell'Oro, A. Hestroer, D. Muinonen, K. Pauwels, T. Petit, J.-M. David, P. Angeli, F.De. Delbo, M. Frézouls, B. Galluccio, L. Granvik, M. Guiraud, J. Hernández, J. Ordénovic, C. Portell, J. Poujoulet, E. Thuillot, W. Walmsley, G. Brown, A.G.A. Vallenari, A. Prusti, T. Bruijne, J.H.J.D. Babusiaux, C. Bailer-Jones, C.A.L. Biermann, M. Evans, D.W. Eyer, L. Jansen, F. Jordi, C. Klioner, S.A. Lammers, U. Lindegren, L. Luri, X. Panem, C. Pourbaix, D. Randich, S. Sartoretti, P. Siddiqui, H.I. Soubiran, C. Van Leeuwen, F. Walton, N.A. Arenou, F. Bastian, U. Cropper, M. Drimmel, R. Katz, D. Lattanzi, M.G. Bakker, J. Cacciari, C. Castañeda, J. Chaoul, L. Cheek, N. Fabricius, C. Guerra, R. Holl, B. Masana, E. Messineo, R. Mowlavi, N. Nienartowicz, K. Panuzzo, P. Riello, M. Seabroke, G.M. Thévenin, F. Gracia-Abril, G. Comoretto, G. Garcia-Reinaldos, M. Teyssier, D. Altmann, M. Andrae, R. Audard, M. Velidis, I.Bellas. Benson, K. Blomme, R. Burgess, P. Busso, G. Clementini, G. Clotet, M. Creevey, O. Davidson, M. Ridder, J.De. Delchambre, L. Ducourant, C. Fernández-Hernández, J. Fouesneau, M. Frémat, Y. García-Torres, M. González-Núñez, J. González-Vidal, J.J. Gosset, E. Guy, L.P. Halbwachs, J.-L. Hambly, N.C. Harrison, D.L. Hodgkin, S.T. Hutton, A. Jasniewicz, G. Jean-Antoine-Piccolo, A. Jordan, S. Korn, A.J. Krone-Martins, A. Lanzafame, A.C. Lebzelter, T. Löer, W. Manteiga, M. Marrese, P.M. Martín-Fleitas, J.M. Moitinho, A. Mora, A. Osinde, J. Pancino, E. Recio-Blanco, A. Richards, P.J. Rimoldini, L. Robin, A.C. Sarro, L.M. Siopis, C. Smith, M. Sozzetti, A. Söveges, M. Torra, J. Reeven, W.Van. Abbas, U. Aramburu, A.Abreu. Accart, S. Aerts, C. Altavilla, G. Álvarez, M.A. Alvarez, R. Alves, J. Anderson, R.I. Andrei, A.H. Varela, E.Anglada. Antiche, E. Antoja, T. Arcay, B. Astraatmadja, T.L. Bach, N. Baker, S.G. Balaguer-Núñez, L. Balm, P. Barache, C. Barata, C. Barbato, D. Barblan, F. Université Côte D'Azur Observatoire de la Côte D'Azur Laboratoire Lagrange Bd de l'Observatoire CS 34229 Nice Cedex 406304 France Imcce Observatoire de Paris Université PSL Cnrs 77 av. Denfert-Rochereau Paris75014 10025 Italy INAF-Osservatorio Astrofisico di Arcetri Largo Enrico Fermi 5 Firenze50125 Italy University of Helsinki Department of Physics P.O. Box 64 Helsinki00014 Finland Finnish Geospatial Research Institute Fgi Geodeetinrinne 2 Masala02430 Finland Royal Observatory of Belgium Ringlaan 3 Brussels1180 Belgium Institut Utinam UMR6213 Osu Theta Franche-Comté Bourgogne Université Bourgogne Franche-Comté Besançon25000 France Institute of Astronomy University of Cambridge Madingley Road CambridgeCB3 0HA United Kingdom Cnes Centre Spatial de Toulouse 18 avenue Edouard Belin Toulouse Cedex 931401 France Department of Computer Science Electrical and Space Engineering Lulea University of Technology Box 848 KirunaS-981 28 Camino Bajo Del Castillo Urbanizacion Villafranca Del Castillo Villanueva de la Cañada Madrid28692 Spain Martí i Franquès 1 Barcelona08028 Spain Akka for Cnes Centre Spatial de Toulouse 18 avenue Edouard Belin Toulouse Cedex 931401 France Leiden Observatory Leiden University Niels Bohrweg 2 Leiden2333 CA Netherlands INAF-Osservatorio Astronomico di Padova Vicolo Osservatorio 5 Padova35122 Italy Keplerlaan 1 Noordwijk2201AZ Netherlands Gepi Observatoire de Paris Université Psl 5 Place Jules Janssen Meudon92190 Univ. Grenoble Alpes Cnrs Ipag Grenoble38000 France Max Planck Institute for Astronomy Königstuhl 17 Heidelberg69117 Germany Astronomisches Rechen-Institut Zentrum för Astronomie der Universität Heidelberg Mönchhofstr. 12-14 Heidelberg69120 Germany Department of Astronomy University of Geneva Chemin des Maillettes 51 Versoix1290 Switzerland Mission Operations Division Operations Department Directorate of Science Keplerlaan 1 Noordwijk2201 AZ Netherlands Lohrmann Observatory Techn

Context. The Gaia spacecraft of the European Space Agency (ESA) has been securing observations of solar system objects (SSOs) since the beginning of its operations. data Release 2 (DR2) contains the observations of a selected sample of 14,099 SSOs. These asteroids have been already identified and have been numbered by the Minor Planet Center repository. Positions are provided for each Gaia observation at CCD level. As additional information, complementary to astrometry, the apparent brightness of SSOs in the unfiltered G band is also provided for selected observations. Aims. We explain the processing of SSO data, and describe the criteria we used to select the sample published in Gaia DR2. We then explore the data set to assess its quality. Methods. To exploit the main data product for the solar system in Gaia DR2, which is the epoch astrometry of asteroids, it is necessary to take into account the unusual properties of the uncertainty, as the position information is nearly one-dimensional. When this aspect is handled appropriately, an orbit fit can be obtained with post-fit residuals that are overall consistent with the a-priori error model that was used to define individual values of the astrometric uncertainty. The role of both random and systematic errors is described. The distribution of residuals allowed us to identify possible contaminants in the data set (such as stars). Photometry in the G band was compared to computed values from reference asteroid shapes and to the flux registered at the corresponding epochs by the red and blue photometers (RP and BP). Results. The overall astrometric performance is close to the expectations, with an optimal range of brightness G12-17. In this range, the typical transit-level accuracy is well below 1 mas. For fainter asteroids, the growing photon noise deteriorates the performance. Asteroids brighter than G12 are affected by a lower performance of the processing of their signals. The dramatic improvement brought by Gaia D

关键词： Asteroids

来源：评论

学校读者我要写书评

暂无评论

Methods for Evaluating Medical Tests and Biomarkers

引用

Diagnostic and Prognostic Research 2017年第1期1卷 1-34页

作者： Gowri Gopalakrishna Miranda Langendam Patrick Bossuyt Mariska Leeflang Rob Scholten Anna Noel-Storr James Thomas Iain Marshall Byron Wallace Penny Whiting Clare Davenport Gowri GopalaKrishna Isabel de Salis Sue Mallett Robert Wolff Marie Westwood Jos Kleinen Richard Riley Gary Collins Hans Reitsma Karel Moons Antonia Zapf Katharina Kramer Annika Hoyer Oliver Kuss J. Ensor R. D. Riley J. J. Deeks E. C. Martin Gerta Rücker Martin Schumacher Susanne Steinhauser Joie Ensor Kym Snell Brian Willis Jon Deeks Thomas Debray Lavinia Ferrante di Ruffano Sian Taylor-Phillips Chris Hyde Stuart A. Taylor Gauraang Batnagar Lavinia Ferrante Di Ruffano Farah Seedat Aileen Clarke Sarah Byron Frances Nixon Rebecca Albrow Thomas Walker Carla Deakin Zhivko Zhelev Harriet Hunt Yaling Yang Lucy Abel James Buchanan Thomas Fanshawe Bethany Shinkins Laure Wynants Sabine Van Huffel Jan Verbakel Dirk Timmerman Ben Van Calster Aeliko Zwinderman Jason Oke Jack O’Sullivan Rafael Perera Brian Nicholson Hannah L. Bromley Tracy E. Roberts Adele Francis Denniis Petrie G. Bruce Mann Kinga Malottki Holly Smith Lucinda Billingham Alice Sitch Oke Gerke Mie Holm-Vilstrup Eivind Antonsen Segtnan Ulrich Halekoh Poul Flemming Høilund-Carlsen Bernard G. Francq Jac Dinnes Julie Parkes Walter Gregory Jenny Hewison Peter Selby Doug Altman William Rosenberg Julien Asselineau Paul Perez Aïssatou Paye Emilie Bessede Cécile Proust-Lima Christiana Naaktgeboren Joris de Groot Johannes Reitsma Anne Rutjes Emmanuel Ogundimu Jonathan Cook Yannick Le Manach Yvonne Vergouwe Romin Pajouheshnia Rolf Groenwold Karen Moons Linda Peelen Bavo De Cock Daan Nieboer Ewout W. Steyerberg Micael J. Pencina Jennifer Cooper Nick Parsons Chris Stinton Steve Smith Andy Dickens Rachel Jordan Alexandra Enocson David Fitzmaurice Peymane Adab Charles Boachie Gaj Vidmar Karoline Freeman Martin Connock Rachel Court Carl Moons Jessica Harris Zoe Plummer Barnaby Reeves Chris Rogers Andrew Mumford Kurtis Lee Veerle Verheyden Gianni D. Angelini Gavin J. Murphy Jeremy Huddy Melody Ni George Hanna Department of Clinical Epidemiology Biostatistics & Bioinformatics Academic Medical Center University of Amsterdam Amsterdam The Netherlands Department of Clinical Epidemiology and Biostatistics Academic Medical Center University of Amsterdam Amsterdam Netherlands Cochrane Netherlands Julius Center for Health Sciences and Primary Care University Medical Center Utrecht Utrecht Netherlands Cochrane Dementia and Cognitive Improvement Group University of Oxford Oxford UK EPPI-Centre Department of Social Science University College London London UK Division of Health and Social Care Research King’s College London London UK College of Computer and Information Science Northeastern University Boston USA University Hospitals Bristol NHS Foundation Trust School of Social and Community Medicine Bristol UK Institute of Applied Health Research University of Birmingham Birmingham UK School of Social and Community Medicine University of Bristol Bristol UK Kleijnen Systematic Reviews Ltd York UK Research Institute for Primary Care and Health Sciences Keele University Keele UK Centre for Statistics in Medicine Nuffield Department of Orthopaedics Rheumatology and Musculoskeletal Sciences University of Oxford Oxford UK Julius Center for Health Sciences and Primary Care University Medical Center Utrecht Utrecht The Netherlands Cochrane Netherlands University Medical Center Utrecht Utrecht The Netherlands Julius Center for Health Sciences and Primary Care University Medical Center Utrecht 3584 CG Utrecht Netherlands Department of Medical Statistics University Medical Center Göttingen Göttingen Germany Institute for Biometry and Epidemiology German Diabetes Center Leibniz Institute for Diabetes Research at Heinrich Heine University Düsseldorf Germany Manchester Pharmacy School University of Manchester Manchester UK Institute for Medical Biometry and Statistics Faculty of Medicine and Medical Center – University of Freiburg Stefan-Meier-Str. 26 79104 Freiburg Germany

来源：评论

学校读者我要写书评

暂无评论

Multivariate spearman's ρ for aggregating ranks using copulas

The Journal of Machine Learning Research

引用

The Journal of Machine Learning Research 2016年第1期17卷

作者： Kevin Murphy Bernhard Schölkopf Justin Bedö Cheng Soon Ong Google MPI for Intelligent Systems The Walter and Eliza Hall Institute Victoria Australia and The Department of Computing and Information Systems The University of Melbourne VIC Australia Data61 CSIRO Canberra ACT Australia and Research School of Computer Science The Australian National University Australia and The Department of Electrical and Electronic Engineering The University of Melbourne VIC Australia

We study the problem of rank aggregation: given a set of ranked lists, we want to form a consensus ranking. Furthermore, we consider the case of extreme lists: i.e., only the rank of the best or worst elements are known. We impute missing ranks and generalise Spearman's ρ to extreme ranks. Our main contribution is the derivation of a non-parametric estimator for rank aggregation based on multivariate extensions of Spearman's ρ, which measures correlation between a set of ranked lists. Multivariate Spearman's ρ is defined using copulas, and we show that the geometric mean of normalised ranks maximises multivariate correlation. Motivated by this, we propose a weighted geometric mean approach for learning to rank which has a closed form least squares solution. When only the best (top-k) or worst (bottom-k) elements of a ranked list are known, we impute the missing ranks by the average value, allowing us to apply Spearman's ρ. We discuss an optimistic and pessimistic imputation of missing values, which respectively maximise and minimise correlation, and show its effect on aggregating university rankings. Finally, we demonstrate good performance on the rank aggregation benchmarks MQ2007 and MQ2008.

关键词：

来源：评论

学校读者我要写书评

暂无评论

Direct measurements of magnetic and electric optical responses from silicon nanoparticles

Direct measurements of magnetic and electric optical respons...

引用

International Seminar Day on Diffraction

作者： Dmitry V. Permyakov Ivan S. Sinev Dmitry L. Markovich Pavel Ginzburg Anton K. Samusev Pavel A. Belov Vytautas Valuckas Arseniy I. Kuznetsov Boris S. Luk'yanchuk Andrey E. Miroshnichenko Dragomir N. Neshev Yuri S. Kivshar ITMO University St. Petersburg Russia School of Electrical Engineering Tel Aviv University Tel Aviv Israel Department of Electrical and Computer Engineering National University of Singapore Singapore Data Storage Institute A*STAR (Agency for Science Technology and Research) Singapore Nonlinear Physics Centre Australian National University Canberra Australia

We report on our experimental and numerical studies of optically-induced magnetic and electric dipole resonances of spherical silicon nanoparticles. We combine polarization-resolved dark-field spectroscopy and near-field scanning optical microscopy and demonstrate experimentally that electromagnetic fields scattered by nanoparticles exhibit strong sensitivity to the probing beam polarization both in far- and near-field regions. We suggest that our complex experimental approach can be employed as a powerful tool for analysing nanoscale photonic systems possessing both electric and magnetic dipole responses.

关键词： Magnetic resonance imaging Nanoparticles Magnetic moments Silicon Optical polarization Optical diffraction Optical scattering

来源：评论

学校读者我要写书评

暂无评论

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

请选择保存的检索档案：

请选择收藏分类：

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

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

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：