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Acta Geologica Sinica(English Edition) 2009年第5期83卷 917-926页

作者： cao hui State Key Laboratory of Geological Processes and Mineral Resources and Beijing Key Laboratory of Resources Information Research China University of Geosciences Beijing 100083 China School of Earth and Environmental Sciences James Cook University Townsville Queensland 4811 Australia

Five lengthy periods involving multiple phases of cordierite and andalusite growth were revealed by detailed studies of foliation inflection/intersection axes （FIA） preserved in porphyroblasts in schists from the Arkansas River region in Colorado, USA. The regionally consistent character of the succession of five different FIA trends enabled the relative timing of each FIA with respect to the next to be determined. The FIA succession from first to last is： FIA 1 trending W-E, FIA 2 trending SSW- NNE, FIA 3 trending NNW-SSE, FIA 4 trending NW-SE and FIA 5 trending SW-NE. For four of the FIA sets, samples were found containing monazite grains preserved as inclusions. These were dated on an electron microprobe. The ages obtained concur exactly with the FIA succession, with FIA 1 at 1506±15 Ma, FIA 2 at 1467±23 Ma, FIA 3 at 1425±18 Ma, FIA 4 not dated and FIA 5 at 1366±20 Ma. These ages are directly reflected in a succession of plutons in the surrounding region dated by other isotopic approaches, suggesting that deformation, metamorphism and pluton emplacement occurred together episodically, but effectively continuously, for some 140 Ma.

关键词： monazite dating Arkansas River region foliation inflection/intersection axes

Survival Conditions of Folding in Different Depth During Orogenesis-Deformation in Texas Creek and Chester Dome, USA

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Acta Geologica Sinica(English Edition) 2014年第1期88卷 103-112页

作者： cao hui XU Cuiping State Key Laboratory for Continental Tectonics and Dynamics Institute of Geology Chinese Academy of Geological Sciences School of Earth and Environmental Sciences James Cook University

A succession of 5 FIA trends（foliation intersection or inflection axes in porphyroblasts） preserved in high temperature-low pressure regime PreCambrian rocks in the Texas Creek, Arkansas River region reflected by the fold axial plane traces and schistosity data in this region. Similar fold axial plane trace data measured in Palaeozoic rocks in Chester Dome, Vermont, which is high temperature to medium pressure regime, only preserve the effects of the youngest FIAs of the all 5 FIA sets that obtained in this region. The other three FIA sets have no equivalent fold axial planes. This difference from shallow to deeper orogenic regimes reflects decreasing competency at greater pressure with collapse and unfolding of earlier formed folds. The greater overlying load of rocks has tended to flatten all but the very largest early-formed structures, preserving only those folds that were more recently developed.

关键词： orogenesis fold axial plane foliation intersection or inflection axes gravitational collapse porphyroblast

A Configurable Circuit for Cross-Correlation in Real-Time Image Matching

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Journal of Computer Science & Technology 2017年第6期32卷 1305-1318页

作者： Quan Zhou Liang Yang hui cao Department of Integrated Circuit Design Xi'an Microelectronics Technology Institute Xi'an 710065 China

Cross-correlation （CC） is the most time-consuming in the implementation of image matching algorithms based on the correlation method. Therefore, how to calculate CC fast is crucial to real-time image matching. This work reveals that the single cascading multiply-accumulate （CAMAC） and concurrent multiply-accumulate （COMAC） architectures which have been widely used in the past, actually, do not necessarily bring about a satisfactory time performance for CC. To obtain better time performance and higher resource efficiency, this paper proposes a configurable circuit involving the advantages of CAMAC and COMAC for a large amount of multiply-accumulate （MAC） operations of CC in exhaustive search. The proposed circuit works in an array manner and can better adapt to changing size image matching in real-time processing. Experimental results demonstrate that this novel circuit which involves the two structures can complete vast MAC calculations at a very high speed. Compared with existing related work, it improves the computation density further and is more flexible to use.

关键词： cross-correlation image matching multiply-accumulate speed-up ratio template matching

Reliability-based selective maintenance for redundant systems with dependent performance characteristics of components

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Journal of Systems Engineering and Electronics 2023年第3期34卷 804-814页

作者： cao hui DUAN Fuhai DUAN Yu’nan School of Mechanical Engineering Dalian University of TechnologyDalian 116024China

The reliability-based selective maintenance(RSM)decision problem of systems with components that have multiple dependent performance characteristics(PCs)reflecting degradation states is addressed in this paper.A vine-Copulabased reliability evaluation method is proposed to estimate the reliability of system components with multiple ***,the marginal degradation reliability of each PC is built by using the Wiener stochastic process based on the PC’s degradation *** joint degradation reliability of the component with multiple PCs is established by connecting the marginal reliability of PCs using *** addition,two RSM decision models are developed to ensure the system accomplishes the next *** genetic algorithm(GA)is used to solve the constraint optimization problem of the models.A numerical example illustrates the application of the proposed RSM method.

关键词： D-vine genetic algorithm(GA) reliability-based selective maintenance(RSM) redundant system Wiener stochastic process

Comprehensive assessment on the ecological stress of rapid land urbanization per proportion, intensity, and location

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Ecosystem Health and Sustainability 2019年第1期5卷 242-255,I0007页

作者： Pingxing Li hui cao Key Laboratory of Watershed Geographic Sciences Nanjing Institute of Geography and LimnologyChinese Academy of SciencesNanjingChina School of Geographical Sciences and Urban Planning Arizona State UniversityTempeAZUSA

Aiming at assessing the ecological stress of land urbanization comprehensively,three perspectives are considered and combined,*** amount effect with the proportion of construction lands as the indicator,the intensity effect per the density of environmental pollutant emissions,and the location effect based on their spatial distribution in the heterogeneous *** quantitative results of Southern Jiangsu case in Eastern China show the single-perspective ecological stress are spatially different;the proportion effect is higher in city propers which are more densely populated and ***,the intensity effect is more significant for units along the Yangtze river where heavy industries are gathered,while the location effect is higher in“ecologically suitable”*** the integration of proportion,intensity,and location effects,the comprehensive stress differs across Southern Jiangsu and are also different with the single-perspective *** stressors of each unit are spatially distinct,which benefits policymakers in targeting their objectives as per primary influencing *** is concluded that the comprehensive assessment could efficiently reveal the spatial differentiation of the ecological effects of land urbanization and also the differentiated role of different factors for each unit.

关键词： Comprehensive ecological stress land urbanization land use intensity location effect Eastern China

Flue Gas Monitoring System With Empirically-Trained Dictionary

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IEEE/CAA Journal of Automatica Sinica 2020年第2期7卷 606-616页

作者： hui cao Yajie Yu Panpan Zhang Yanxia Wang Shaanxi Key Laboratory of Smart Grid and the State Key Laboratory of Electrical Insulation and Power Equipment School of Electrical EngineeringXi’an Jiaotong UniversityXi’an 710049China State Key Laboratory of Electrical Insulation and Power Equipment School of Electrical EngineeringXi’an Jiaotong UniversityXi’an 710049China School of Electronic and Electrical Engineering University of LeedsLeeds LS29JTUK

The monitoring of flue gas of the thermal power plants is of great significance in energy conservation and environmental *** technique has been widely used in the gas monitoring system for predicting the concentrations of specific gas *** paper proposes flue gas monitoring system with empirically-trained dictionary(ETD)to deal with the complexity and biases brought by the uninformative spectral ***,ETD is extracted from the raw spectral data by an alternative optimization between the sparse coding stage and the dictionary update stage to minimize the error of sparse representation.D1,D2 and D3 are three types of ETD obtained by different ***,the predictive model of component concentration is constructed on the *** the experiments,two real flue gas spectral datasets are collected and the proposed method combined with the partial least squares,the background propagation neural network and the support vector machines are ***,the optimal parameters are chosen according to the 10-fold root-mean-square error of cross *** experimental results demonstrate that the proposed method can be used for quantitative analysis effectively and ETD can be applied to the gas monitoring systems.

关键词： Dictionary learning empirically-trained dictionaty(ETD) flue gas monitoring system quantitative analysis

Analysis of the Tendency and Characteristics of the Cluster Development of the Strategic Emerging Industry in China

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学术界 2015年第5期 274-278页

作者： cao hui Dongling School of Economics and Management University of Science and Technology Beijing Beijing 100083

It is an important strategy to accelerate the cluster development of the strategic emerging industry for the economic and social development in China,which is also carried out in the transformation process at both the central and provincial *** cluster development of the strategic emerging industry embodies spatial agglomeration,being innovation- driven and industry convergence and so on,taking on such characteristics as the external promotion of the government policies,the internal promotion of the market *** of culture and tradition and the continuous impetus of *** the backdrop of the present national conditions of China,we are proceeding from the primary stage to the mature stage of the cluster development of the strategic emerging *** for the advanced stage,the innovation- driven,cross- region and international cluster development will be realized.

关键词：新兴产业中国群发社会发展改造过程空间集聚产业融合市场机制

Field Effects on the Statistical Behavior of the Molecular Conductance in a Single Molecular Junction in Aqueous Solution

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Nano Research 2010年第5期3卷 350-355页

作者： hui cao Jing Ma Yi Luo Department of Theoretical Chemistry School of BiotechnologyRoyal Institute of TechnologyS-10691 StockholmSweden School of Chemistry and Chemical Engineering Institute of Theoretical and Computational ChemistryKey Laboratory of Mesoscopic Chemistry of Ministry of EducationNanjing UniversityNanjing 210093China

We have combined molecular dynamics simulations with first-principles calculations to study electron transport in a single molecular junction of perylene tetracarboxylic diimide (PTCDI) in aqueous solution under external electric gate fields. It is found that the statistics of the molecular conductance are very sensitive to the strength of the electric field. The statistics of the molecular conductance are strongly associated with the thermal fluctuation of the water molecules around the PTCDI molecule. Our simulations reproduce the experimentally observed three orders of magnitude enhancement of the conductance, as well as the temperature dependent conductance, under the electrochemical gates. The effects of the molecular polarization and the dipole rearrangement of the aqueous solution are also discussed.

关键词： Molecular junction field effect solvent effect temperature effect statistical behavior

CFD-DNS simulation of irregular-shaped particle dissolution

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Particuology 2020年第3期18卷 144-155页

作者： hui cao Xiaodong Jia Yongliang Li Carlos Amador Yulong Ding School of Chemical Engineering University of BirminghamB152TTUnited Kingdom School of Chemical and Process Engineering University of LeedsLS29JTUnited Kingdom Proctor&Gamble Newcastle Innovation Centre Newcastle Upon TyneNE129TSUnited Kingdom

A coupled approach between the conventional computational fluid dynamics platform COMSOL and an in-house-developed direct numerical simulation code DigiDiss is presented to study the dissolution kinetics of an irregular-shaped particle in a stirred *** complex flow dynamics from COMSOL were imported into DigiDiss as an initial flow condition.A digitised 3D particle structure scanned and reconstructed by X-ray micro-tomography was used in the dissolution simulation.A quantitative assessment of the simulation results was made using as a reference experimental data and a theoretical calculation based on the shrinking spherical model with different flow velocity profiles near the *** comprehensive agreement demonstrates the coherence of the simulation method in reproducing the experimental behaviour and is seen as a step closer towards developing a computer software design aide to help with formulation development.

关键词： Single particle dissolution Computational fluid dynamics Direct numerical simulation X-ray micro-tomography

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虚拟仪器平台下旋转机械振动应用研究

太原学院学报（自然科学版） 2025年第1期43卷 63-70页

作者：曹慧张锐英潘琦方遒安徽新闻出版职业技术学院机电信息系安徽合肥230601

利用LabVIEW软件图形化程序和可视化前面板,基于旋转机械结构和运动特点构建虚拟仪器仿真平台基本框架,设计了与真实仪器功能相当的旋转机械齿轮振动虚拟仿真研究平台。通过仿真验证,齿轮振动虚拟仿真平台能够有效采集振动信号,并对振... 详细信息

利用LabVIEW软件图形化程序和可视化前面板,基于旋转机械结构和运动特点构建虚拟仪器仿真平台基本框架,设计了与真实仪器功能相当的旋转机械齿轮振动虚拟仿真研究平台。通过仿真验证,齿轮振动虚拟仿真平台能够有效采集振动信号,并对振动信号特征进行提取和分析,测试结果与旋转机械齿轮实际振动情况一致。开发的虚拟仿真平台达到了预期功能目标,为旋转机械关键部件振动检测和故障诊断提供了可视化技术支持,降低了旋转机械故障检测成本。

关键词：齿轮振动虚拟仪器图形化程序前面板频谱分析