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The correspondence between the concepts in description logics for contexts and formal concept analysis

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Science china(Information sciences) 2012年第5期55卷 1106-1122页

作者： MA Yue 1,2,SUI YueFei 1 & CAO CunGen 1 1 key laboratory of Intelligent Information Processing,institute of Computing technology,chinese academy of sciences,Beijing 100190,china 2 Graduate University of chinese academy of sciences,Beijing,china key laboratory of Intelligent Information Processing Institute of Computing Technology Chinese Academy of Sciences Beijing China Graduate University of chinese academy of sciences Beijing China

Formal concept analysis (FCA) and description logic (DL) are meant to be formalizations of concepts.A formal concept in the former consists of its intent and extent,where the intent is the set of all the attributes shared by each object in the extent of the concept,and the extent is the set of all the objects sharing each property in the intent of the concept.A concept in the latter formalization is simply a concept name,the interpretation of which is a subset of a *** consider the correspondence between concepts in both formalizations,a multi-valued formal context must be represented both as a knowledge base and as a model of the DL for contexts,where concepts are decomposed into tuple concepts C,interpreted as a set of tuples and value concepts V,interpreted as a set of attribute-value *** show that there is a difference between the interpretation of concepts R.V /R.C and the Galois connection between the extent/intent of formal concepts in *** to the Galois connection,there should be concepts of the form + R.V and + R.C inter-preted in FCA,and hence the logical language L for DL is extended to be L + together with + as a constructor so that + R.V and + R.C are well-defined ***,according to the interpretation in DL there should be pseudo concepts in FCA so that the interpretation of concepts R.V /R.C is the extent/intent of pseudo *** correspondence between formal concepts and concepts in L +,and between pseudo concepts and concepts in L are presented in this paper.

关键词： description logic formal concept analysis concept attribute/role

Exploration of combined adjustment laws about IGV,stator and rotational speed in off-design conditions in an axial compressor

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中国科学：技术科学英文版 2010年第4期53卷 969-975页

作者： HU YanMing1,2 & NIE ChaoQun1 1 key laboratory of Advanced Energy and Power technology,institute of Engineeting Thermophysics,chinese academy of Science,Beijing 100190,china 2 Graduate School of chinese academy of sciences,Beijing 100190,china key laboratory of Advanced Energy and Power technology Institute of Engineeting Thermophysics Chinese Academy of Science Beijing China Graduate School of chinese academy of sciences Beijing China

Experimental investigations are performed in a three-stage low-speed axial compressor with variable inlet guide vanes(IGV) and adjustable *** characteristics of the compressor,especially the efficiency and stall margin,are analyzed in design and off-design operation conditions by adjusting stagger angles of IGV and stators as well as changing the rotational *** experimental results show that the off-design performance of the multistage axial compressor is improved by restaggering of IGV and stators related to rotational *** the background of engineering applications,digital signal processing(DSP) technique is used to realize online adjustment of stagger angles according to the corresponding relations between incidence angles of rotor and rotational speed.

关键词： axial compressor IGV surge DSP techniques off-design

Self-programming Optical Logic Processor by using the PROM Device

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chinese Journal of Lasers 1996年第4期B5卷 349-354页

作者： WANG Binquan LIU Liren PENG Haifeng LIANG Feng(Information optics laboratory,Shanghai institute of optics and Fine Mechanics,chinese academy of sciences,Shanghai 201800, china) Shanghai Inst of optics and Fine Mechanics Chinese Acad of Sciences Shanghai China

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关键词： device self-programming logic processor

Crystal structure and single crystal EPR of (NH_4)_2(15-crown-5)_3[Cu(mnt)_2] and (NH_4)_2(benzo-15-crown-5)_4[Cu(mnt)_2]·0.5H_2O

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Science china Chemistry 2007年第5期50卷 607-613页

作者： SUI YunXia1, WEN LiLi2, ZHANG Huan3 & MENG QingJin2 1 Center of Modern Analysis, nanjing University, nanjing 210093, china 2 State key laboratory of Coordination Chemistry, Coordination Chemistry institute, nanjing University, nanjing 210093, china 3 Jiangnan institute of Computing technology, Wuxi 214083, china Center of Modern Analysis Nanjing University Nanjing China State key laboratory of Coordination Chemistry Coordination Chemistry Institute Nanjing University Nanjing China Jiangnan institute of Computing technology Wuxi China

The X-ray crystal structures of (NH4)2(15-crown-5)3[Cu(mnt)2] (1) and(NH4)2(benzo-15-crown-5)4-[Cu(mnt)2] ident to 0.5H2O (2) were *** single crystals arecomposed of distinct structures of ammonium-crown ether supramolecular cation and [Cu(mnt)2]^(2-)*** triple-decker dication in complex 1 and a sandwich dimmer in complex 2 wereobserved.X-Band EPR studies on the single crystals of both complex 1 and complex 2 have been carriedout at room temperature,which revealed that complex 2 showed a perfect hyperfine structure of Cuwhereas that of complex 1 could not be *** principal values and direction cosines of theprincipal axes of the g and A tensors were computed by a least-squares fitting *** spindensity of Cu(ll) was estimated according to the principal values of the A tensors and compared wellwith the results calculated based on DFT method.

关键词： supramolecular cation, H-bonding interaction, EPR, g and A tensors, DFT

Analysis and application of automatic deformation monitoring data for buildings and structures of mining area

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中国有色金属学会会刊：英文版 2011年第S3期21卷 516-522页

作者： XIAO Jie1, 2, 3, ZHANG Jin4 1. institute of Geodesy and Geophysics, chinese academy of sciences, Wuhan 430077, china 2. key laboratory of Dynamic Geodesy, institute of Geodesy and Geophysics, chinese academy of sciences, Wuhan 430077, china 3. Graduate School of chinese academy of sciences, Beijing 100049, china 4. Department of Surveying and Mapping, Taiyuan University of technology, Taiyuan 030024, china institute of Geodesy and Geophysics Chinese Academy of Sciences Wuhan 430077 China key laboratory of Dynamic Geodesy Institute of Geodesy and Geophysics Chinese Academy of Sciences Wuhan 430077 China Graduate School of chinese academy of sciences Beijing 100049 China Department of Surveying and Mapping Taiyuan University of Technology Taiyuan 030024 China

The buildings and structures of mines were monitored automatically using modern surveying technology. Through the analysis of the monitoring data, the deformation characteristics were found out from three aspects containing points, lines and regions, which play an important role in understanding the stable state of buildings and structures. The stability and deformation of monitoring points were analysed, and time-series data of monitoring points were denoised with wavelet analysis and Kalman filtering, and exponent function and periodic function were used to get the ideal deformation trend model of monitoring points. Through calculating the monitoring data obtained, analyzing the deformation trend, and cognizing the deformation regularity, it can better service mine safety production and decision-making.

关键词： wavelet analysis Kalman filtering deformation monitoring data analysis mine

A generalized mean shift tracking algorithm

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Science china(Information sciences) 2011年第11期54卷 2373-2385页

作者： CHEN JianJun 1,4,ZHANG SuoFei 1,AN GuoCheng 2 & WU ZhenYang 1,31 School of Information Science and Engineering,Southeast University,nanjing 210096,china 2 Intelligence Engineering Lab,institute of Software chinese academy of sciences,Beijing 100190,china 3 key laboratory of Underwater Acoustic Signal Processing of Ministry of Education,Southeast University,nanjing 210096,china 4 nanjing Research institute of Electronic technology,nanjing 210013,china School of Information Science and Engineering Southeast University Nanjing China nanjing Research institute of Electronic technology Nanjing China Intelligence Engineering Lab Institute of Software Chinese Academy of Sciences Beijing China key laboratory of Underwater Acoustic Signal Processing of Ministry of Education Southeast University Nanjing China

CAMSHIFT algorithm and Comaniciu/Meer algorithm are two fundamental frameworks of mean shift procedure for video target *** paper generalizes the two well-known mean shift tracking algorithms,originally due to Bradski and Comaniciu/Meer.A new general similarity function which defines the distance between the target model and target candidate is employed to calculate the pixel weights and the target *** target size is iteratively estimated and updated based on the zeroth order moment of the pixel *** we prove that both the CAMSHIFT algorithm and the Comaniciu/Meer algorithm can be included in the generalized mean shift tracking *** tracking performances of three mean shift algorithms in the unified framework are shown and compared in the experimental results.

关键词： mean shift CAMSHIFT video target tracking similarity measure

Palynological record during the Pleistocene (between 1.05 Ma and 0.36 Ma) from ODP1144, northern South china Sea

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Science china Earth sciences 2004年第1期47卷 30-36页

作者： HUANG Fei & SUN Xiangjuninstitute of Geology and Paleontology, chinese academy of sciences, nanjing 210008, china institute of Botany, chinese academy of sciences, Beijing 100093, china key laboratory of Marine Geology, Ministry of Education, Tongji University, Shanghai 200092, china Correspondence should be addressed to Huang Fei institute of Geology/Paleontology Chinese Academy of Sciences Nanjing 210008 China institute of Botany Chinese Academy of Sciences Beijing 100093 China key laboratory of Marine Geology Ministry of Education Tongji University Shanghai 200092 China

This paper presents the pollen record from the lower section of ODP1144 (depth 501.3-225.7 m, ca. 1.05-0.36 Ma). Two pollen zones (PA and PB) and eleven pollen subzones are recognized. Within zone PB, the 11 pollen subzones (PB21-11) are defined according to the pine, fern and herb variations, and are equivalent to the marine isotope stages 21-11 (MISs 21-11). The interglacial periods are typified by an increase in pine pollen and fern spores, and a decrease in herbaceous pollen, while the patterning during the glacial periods is just the opposite. During the interglacial periods, pollen assemblages were dominated by pine similar to those of the present day, suggesting that the paleoenvironment of the interglacial periods was similar to that of the present day, whereas the glacial periods are marked by an increase in herbaceous pollen, mainly Gramineae and Cyperaceae, indicating that grassland covered the exposed continental shelf when sea level declined. Increased Artemisia percentages and the highest pine influx during MIS12 may result from a stronger winter monsoon.

关键词： pollen record, Pleistocene, ODP1144, northern South china Sea.

TeO_(x) Thin Films for Write-Once Optical Recording Media

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Journal of Materials Science & technology 2004年第6期20卷 678-680页

作者： Qinghui LI, Donghong GU and Fuxi GANResearch laboratory for High Density Optical Storage, Shanghai institute of optics and Fine Mechanics, chinese academy of sciences, Shanghai 201800, china Lab. of High Density Optical Storage Inst. of Optics and Fine Mech. Chinese Acad. of Sci. Shanghai 201800 China

TeO_x thin films were prepared by vacuum evaporation of TeO_2 powder. Structural characteristic and surface mor-phology of the as-deposited films was analyzed by using X-ray photoelectron spectroscopy, transmission electron microscopy, X-ray diffractometer and atomic force microscopy. It was found that the films represented a two component system comprising Te particies dispersed in an amorphous TeO2 matrix. The dispersed Te particies were in a crystalline state. The TeOx films showed a finely granular structure and a rough surface. Results of the statie recording test showed that the TeO_x films had good writing sensitivity for short-wavelength laser beam (514.5 nm). Primary results of the dynamic test at 514.5 nm were also reported. The TeO_x films were suitable for using as a blue-green wavelength high density optical storage medium.

关键词： TeO_x thin film Statie recording test Dynamic test High density optical storage

Trace element geochemistry of the Lower Cambrian black rock series from northwestern Hunan, South china

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Progress in Natural Science:Materials International 2004年第1期14卷 65-71页

作者： PAN Jiayong 1,2 *, MA Dongsheng 1 and CAO Shuanglin 1,2 (1.The State key laboratory for Mineral Deposits Research, nanjing University, nanjing 210093, china 2. East china institute of technology, Fuzhou 344000, china) nanjing Univ State Key Lab Mineral Deposit Res Nanjing 210093 Peoples R China E china Inst Technol Fuzhou 344000 Peoples R China

Samples of black rock series collected from the Lower Cambrian Niutitang Formation, northwestern Hunan Province, china, were analyzed for trace elements. The trace element geochemical characteristics of the ore layer (high enrichments of Ni, Mo, V, U, Cu, Pb, Zn, Cd, Tl and Ba; high U/Th ratios and LREE enriched patterns with positive Eu and Y anomalies) support the assumption that the Ni Mo polymetallic layer is of submarine hydrothermal origin. High field strength elements (HFSE) and lithophile elements such as Nb, Ta, Zr, Hf, Li, Be, Rb, Cs, Th and Sc are remarkably higher in the upper unit than those in the lower unit of the Niutitang Formation. These features may reflect that hydrothermal contributions were diminished, and terrigenous constituents were increased in the sediments of the upper unit of the Niutitang Formation.

关键词： black rock series Early Cambrian trace elements northwestern Hunan china