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排序方式: 共有3786条查询结果,搜索用时 875 毫秒
71.
A. Ritacco R. Adam A. Adane P. Ade P. André A. Beelen B. Belier A. Benoît A. Bideaud N. Billot O. Bourrion M. Calvo A. Catalano G. Coiffard B. Comis A. D’Addabbo F.-X. Désert S. Doyle J. Goupy C. Kramer S. Leclercq J. F. Macías-Pérez J. Martino P. Mauskopf A. Maury F. Mayet A. Monfardini F. Pajot E. Pascale L. Perotto G. Pisano N. Ponthieu M. Rebolo-Iglesias V. Revéret L. Rodriguez G. Savini K. Schuster A. Sievers C. Thum S. Triqueneaux C. Tucker R. Zylka 《Journal of Low Temperature Physics》2016,184(3-4):724-732
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Microstructure and Processing of 3D Printed Tungsten Microlattices and Infiltrated W–Cu Composites 下载免费PDF全文
Micha Calvo Adam E. Jakus Ramille N. Shah Ralph Spolenak David C. Dunand 《Advanced Engineering Materials》2018,20(9)
74.
Aminuddin A. Kayani Adam F. Chrimes Khashayar Khoshmanesh Vijay Sivan Eike Zeller Kourosh Kalantar-zadeh Arnan Mitchell 《Microfluidics and nanofluidics》2011,11(1):93-104
This work demonstrates an optofluidic system, where dielectrophoretically controlled suspended nanoparticles are used to manipulate
the properties of an optical waveguide. This optofluidic device is composed of a multimode polymeric rib waveguide and a microfluidic
channel as its upper cladding. This channel integrates dielectrophoretic (DEP) microelectrodes and is infiltrated with suspended
silica and tungsten trioxide nanoparticles. By applying electrical signals with various intensities and frequencies to the
DEP microelectrodes, the nanoparticles can be concentrated close to the waveguide surface significantly altering the optical
properties in this region. Depending on the particle refractive indices, concentrations, positions and dimensions, the light
remains confined or is scattered into the surrounding media in the microfluidic channel. 相似文献
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76.
MODIS Collection 5 global land cover: Algorithm refinements and characterization of new datasets 总被引:28,自引:0,他引:28
Mark A. Friedl Damien Sulla-Menashe Annemarie Schneider Adam Sibley 《Remote sensing of environment》2010,114(1):168-182
Information related to land cover is immensely important to global change science. In the past decade, data sources and methodologies for creating global land cover maps from remote sensing have evolved rapidly. Here we describe the datasets and algorithms used to create the Collection 5 MODIS Global Land Cover Type product, which is substantially changed relative to Collection 4. In addition to using updated input data, the algorithm and ancillary datasets used to produce the product have been refined. Most importantly, the Collection 5 product is generated at 500-m spatial resolution, providing a four-fold increase in spatial resolution relative to the previous version. In addition, many components of the classification algorithm have been changed. The training site database has been revised, land surface temperature is now included as an input feature, and ancillary datasets used in post-processing of ensemble decision tree results have been updated. Further, methods used to correct classifier results for bias imposed by training data properties have been refined, techniques used to fuse ancillary data based on spatially varying prior probabilities have been revised, and a variety of methods have been developed to address limitations of the algorithm for the urban, wetland, and deciduous needleleaf classes. Finally, techniques used to stabilize classification results across years have been developed and implemented to reduce year-to-year variation in land cover labels not associated with land cover change. Results from a cross-validation analysis indicate that the overall accuracy of the product is about 75% correctly classified, but that the range in class-specific accuracies is large. Comparison of Collection 5 maps with Collection 4 results show substantial differences arising from increased spatial resolution and changes in the input data and classification algorithm. 相似文献
77.
Secretan J Beato N D'Ambrosio DB Rodriguez A Campbell A Folsom-Kovarik JT Stanley KO 《Evolutionary computation》2011,19(3):373-403
For domains in which fitness is subjective or difficult to express formally, interactive evolutionary computation (IEC) is a natural choice. It is possible that a collaborative process combining feedback from multiple users can improve the quality and quantity of generated artifacts. Picbreeder, a large-scale online experiment in collaborative interactive evolution (CIE), explores this potential. Picbreeder is an online community in which users can evolve and share images, and most importantly, continue evolving others' images. Through this process of branching from other images, and through continually increasing image complexity made possible by the underlying neuroevolution of augmenting topologies (NEAT) algorithm, evolved images proliferate unlike in any other current IEC system. This paper discusses not only the strengths of the Picbreeder approach, but its challenges and shortcomings as well, in the hope that lessons learned will inform the design of future CIE systems. 相似文献
78.
Adam Kłodowski Timo Rantalainen Aki Mikkola Ari Heinonen Harri Sievänen 《Multibody System Dynamics》2011,25(4):395-409
A method for bone strain estimation is examined in this article. The flexibility of a single bone in an otherwise rigid human
skeleton model has been studied previously by various authors. However, in the previous studies, the effect of the flexibility
of multiple bones on the musculoskeletal model behavior was ignored. This study describes a simulation method that can be
used to estimate the bone strains at both tibias and femurs of a 65-year-old Caucasian male subject. The verification of the
method is performed by the comparison of the results with other studies available in literature. The results of the study
show good correlation with the results of previous empirical studies. A damping effect of the flexible bones on the model
is also studied in this paper. 相似文献
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