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Distribution,formation and evolution of sand ridges on the East China Sea shelf

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Science China(Technological Sciences) 2010年第3期53卷 822-828页

作者： ZHAO RenBao 1,2.SUN HaiTao 3,WU YaSheng 3 &ZHAO ChuanFeng 1,2.1MOE Key Laboratory of Petroleum Engineering,China university of Petroleum,Beijing 102.49,China 2.Enhanced Oil Recovering research {2.,China university of Petroleum,Beijing 102.49,China 3Faculty of Natural Resource&information technology,China university of Petroleum,Beijing 102.49,China 1. MOE Key Laboratory of Petroleum Engineering China University of Petroleum Beijing 102249 China2. Enhanced Oil Recovering Research Center China University of Petroleum Beijing 102249 China3. Faculty of Natural Resource & Information Technology China University of Petroleum Beijing 102249 China

Influence of CO2.corrosion on reservoir mineralogical composition,pore structure and their mechanical characteristics was studied using XRD,SEM,rock tri-axial machine and core flow experimental *** was found that the corrosion effect was mainly attributed to rock texture and structure,fluid composition and external dynamical conditions in the experimental *** cores with bedding structures,their bedding surfaces were the preferential corrosion regions,because micro-cracks would evolve at these surfaces in the pressure-releasing ***,for cores with massive structures controlled by stable water environment,the CO2.corrosion would result in pore enlargement and secondary pore *** gas velocity from outlet showed sharp increase in the injection process of CO2.H2. *** could be explained by two changes caused by *** was the opening and closure of *** other was particle *** the corrosion time increased,both tensile strength and compressive strength decreased,which confirmed decrease of cementation *** should also be noted that permeability increase and micro-cracks generation would pose damage to the capacity of CO2.geological storage.

关键词： carbon dioxide geological storage mineralization enhanced oil recovery corrosion

Spatio-temporal pattern analysis of single-trial EEG signals recorded during visual object recognition

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Science China(information Sciences) 2011年第12期54卷 2519-2527页

作者： WANG ChangMing 1 , HU XiaoPing 3 , YAO Li 1,2., XIONG Shi 2.& ZHANG JiaCai 2.1 National Key Laboratory of Cognitive Neuroscience and Learning, Beijing Normal university, Beijing 100875, China 2.College of information Science and {2., Beijing Normal university, Beijing 100875, China 3 Biomedical Imaging {2. center, Emory university/Georgia Institute of {2., Atlanta 3032., USA 1. National Key Laboratory of Cognitive Neuroscience and Learning Beijing Normal University Beijing 100875 China3. Biomedical Imaging Technology Center Emory University/Georgia Institute of Technology Atlanta 30322 USA2. College of Information Science and Technology Beijing Normal University Beijing 100875 China

Object discrimination is a fundamental cognitive function for human brains. In this study, we utilized an analysis approach for single-trial electroencephalography (EEG) to analyze the spatio-temporal activation patterns of visual objects processing in human brains, and attempted to apply it to discriminate different visual objects. The spatial patterns were respectively extracted from scalp EEG and the reconstructed cortical sources, while the experiment participants were perceiving 4 different categories of visual objects (faces, buildings, cats and cars). By classifying the patterns extracted from single-trial EEG, the presented visual objects could be discriminated by a computer, and the classification accuracies may provide a quantitative index to evaluate the spatial differences of the brain activations related to different visual objects. Our results demonstrated that the spatial patterns on both the scalp and the sources levels resulted in higher classification accuracies than chance rate. We also examined the classification results using temporally non-overlapping time intervals of different event-related potential (ERP) components. The temporal changes of classification accuracies may reflect the temporal distribution of the discriminative information in the EEG responses. The present pattern extraction and classification methods may compose a computational model for single-trial EEG data analysis in investigations of the spatio-temporal activation patterns for object recognition. These spatio-temporal patterns in EEG may be useful to identifying the discriminative spatial areas and time stages to improve the accuracies and efficiencies of object discrimination. In addition, investigating and utilizing humans'cognitive mechanisms of object recognition may improve computers' processing efficiency of visual information.

关键词： EEG spatio-temporal pattern object recognition single-trial analysis visual information processing

Environment and Personal Well-being in Urban China

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Chinese Journal of Population,Resources and Environment 2011年第4期9卷 77-81页

作者： Yang Yuwen 1,2.Yang Wenya 3 1.research center for Circular Economy,Nankai {2.,Tianjin 300071,China 2.School of Business and Economics,dalian Nationalities {2.,dalian Liaoning116600,China 3.Nottingham {2. Business School (China),{2. of Nottingham Ningbo,Ningbo Zhejiang 315100,China research center for Circular Economy Nankai University Tianjin 300071 China School of Business and Economics Dalian Nationalities University Dalian Liaoning116600 China Nottingham university Business School (China) University of Nottingham Ningbo Ningbo Zhejiang 315100 China

The aim of this study is to examine the relationship between environment and personal well-being using a sample of 562.urban employees from three cities in Liaoning province in the People's Republic of *** contrast to previous studies,this study controlled positive affectivity (PA),negative affectivity (NA),job satisfaction and Big Five personality *** addition,the research variables of personal well-being index (PWI),positive affectivity,negative affectivity,job satisfaction,Big Five,and environmental satisfaction are measured with multi-item *** research finds that environmental satisfaction is positively related to personal well-being,suggesting that improvement of the natural surroundings in the cities can improve people's well-being.

关键词： environment personal well-being multi-item scales

Phase noise floor suppression of the output carrier from double sideband-carrier suppressed modulation system

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Science China(information Sciences) 2011年第6期54卷 1312-1320页

作者： LUO Xin, HAN XiuYou, GU YiYing, LI ShanFeng & ZHAO MingShan School of Physics and Optoelectronic Engineering, dalian university of technology, dalian 11602., China 1. School of Physics and Optoelectronic Engineering Dalian University of Technology Dalian 116023 China

A theoretical model of all the influencing factors on the phase noise floor of the output carrier from the double sideband-carrier suppressed (DSB-CS) modulation system is presented. Based on the established DSB-CS modulation system with different cases, the phase noise of the input carrier and the output doubled frequency carrier is measured and calculated using the theoretical model, respectively. The calculation results basically agree with the measurement results. It is shown that the phase noise floor of the output carrier is primarily influenced by the signal-spontaneous beat noise and the relative intensity noise (RIN) of the laser. So the phase noise floor of the output carrier can be minimized by choosing the laser with low RIN and the EDFA with low noise factor.

关键词： microwave photonics double sideband-carrier suppressed modulation phase noise

Expression and function analysis of the metallo-thionein-like (MT-like) gene from Festuca rubra in Chlamydomonas reinhardtii chloroplast

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Science China(Life Sciences) 2008年第12期51卷 1076-1081页

作者： HAN SiHai1,2. HU ZhangLi1 & LEI AnPing1 1 Institute of Eco-Environment, College of Life Science, Shenzhen university, Shenzhen 518060, China 2.research {2. for Analytical Instrumentation, State Key Lab of Industrial control technology, Institute of Cyber-Systems and control, Zhejiang university, Hangzhou 310058, China 1. Institute of Eco-Environment College of Life Science Shenzhen University Shenzhen 518060 China 2. research center for Analytical Instrumentation State Key Lab of Industrial Control Technology Institute of Cyber-Systems and Control Zhejiang University Hangzhou 310058 China

The cDNA of the metallothionein-like (MT-like) gene from Festuca rubra cv. Merlin was optimized with bias codon of Chlamydomonous reinhardtii chloroplast genome. The optimized MT-like gene was de-livered into C. reinhardtii chloroplast and the transgenic strains expressing MT-like gene was obtained. PCR-Southern blot and RT-PCR-Southern blot analysis demonstrated that the MT-like gene was inte-grated into chloroplast genome of C. reinhardtii and expressed at the transcriptional level. The cad-mium binding capacity of the transgenic C. reinhardtii was determined by hydride generation-atomic fluorescence spectrometry (HG-AFS) and the binding properties were analyzed. Results showed that the transgenic C. reinhardtii expressing the MT-like gene exhibited remarkably higher Cd2. binding capacity and grew to higher densities at toxic Cd2. concentrations (40-100 μmol/L) than the wild type strain, and that the IC50 of Cd2. (3-d treating ) to algal cell growth of transgenic strain was 55.43% higher than that of the wild type strain, indicating that the Cd2. binding capacity and Cd2. tolerance of C. reinhardtii was enhanced through the expression of the foreign MT-like gene in chloroplast.

关键词： Chlamydomonas reinhardtii chloroplast metallothionein-like (MT-like) gene cadmium binding properties

Mining subsidence control by solid backfilling under buildings

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中国有色金属学会会刊：英文版 2011年第S3期21卷 670-674页

作者： ZHA Jian-feng1, 2. 3, GUO Guang-li1, 2. FENG Wen-kai3, WANG Qiang1, 2.1. Key Laboratory for Land Environment and Disaster Monitoring of the State Bureau of Surveying and Mapping, China university of Mining and technology, Xuzhou 2.1116, China 2. Jiangsu Key Laboratory of Resources and Environmental {2. Engineering, China university of Mining and technology, Xuzhou 2.1116, China 3. State Key Laboratory of Geohazard Prevention and Geoenvironment Protection, Chengdu university of technology, Chengdu 610059, China [a] Key Laboratory for Land Environment and Disaster Monitoring of the State Bureau of Surveying and Mapping China University of Mining and Technology Xuzhou 221116 China [b] Jiangsu Key Laboratory of Resources and Environmental information Engineering China University of Mining and Technology Xuzhou 221116 China [c] State Key Laboratory of Geohazard Prevention and Geoenvironment Protection Chengdu University of Technology Chengdu 610059 China

Solid backfilling mining can reduce the buildings' damage caused by mining greatly. The reduction of subsidence value, the slow advancing speed and the subsidence caused by backfilling body compaction are the main reasons that solid backfilling mining velocity decreases significantly. Based on the research of mechanism, some principles on subsidence control of solid backfilling mining under buildings were proposed. The equivalent mining height was designed according to the fortification criteria of buildings and their attachment structures, which enables the ground movement and deformation caused by mining to be less than the corresponding fortification criteria.

关键词： solid backfilling mining subsidence control mining under buildings

research on the application of 4-weighted fractional Fourier transform in communication system

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Science China(information Sciences) 2010年第6期53卷 1251-1260页

作者： MEI Lin 1, SHA XueJun 1 , RAN QinWen 2.& ZHANG NaiTong 1 1 Communication research center, Harbin Institute of {2., Harbin 150080, China 2.Science research center, Harbin Institute of {2., Harbin 150080, China 1. Communication research center Harbin Institute of Technology Harbin 150080 China2. Science Research Center Harbin Institute of Technology Harbin 150080 China

The paper reveals the relationship between the weighting coefficients and weighted functions via the research of coefficients matrix and based on the original definition of 4-weighted fractional Fourier transform(4-WFRFT).The multi-parameters expression of weighting coefficients are ***, the 4-WFRFT of discrete sequences is defined by introducing DFT into it, which makes it suitable for digital communication *** analyzing the properties of WFRFT, a typical scheme for modulation/demodulation is proposed, which could make the statistics properties of the real and image part on both of the time and frequency domain and the phase properties have a significant *** a variation could be controlled by the adjustment of transform *** the WFRFT of multi-parameters is implemented, it will be more difficult to intercept and capture the modulated signals than normal.

关键词： 4-weighted fractional Fourier transform modulation/demodulation scheme multi-domain cooperation

Theoretical research progress in new-generation Internet architecture

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Science in China(Series F) 2008年第11期51卷 1634-1660页

作者： WU JianPing1,2.3,LIU Ying2.3 & WU Qian2.3 1 Department of Computer Science,Tsinghua university,Beijing 100084,China 2.Network research {2.,Tsinghua university,Beijing 100084,China 3 Tsinghua National Laboratory for information Science and technology(TNList) ,Beijing 100084,China 1. Department of Computer Science Tsinghua University Beijing 100084 China 2. Network research center Tsinghua University Beijing 100084 China 3. Tsinghua National Laboratory for information Science and technology (TNList) Beijing 100084 China

Internet has become the most important information infrastructure supporting modern socio-economic development, social progress and technological Innovation. Invented 30 years ago, today Internet is facing increasingly severe technical challenges. This paper introduces the progress of the major international newgeneration Internet research plans; analyzes its basic characteristics and the principal contradictions during the development; detsiledly introduces the research carried out by 973 Project ＂research of Future Internet Architecture＂ on the key scientific issues of new-generation Internet architecture and its latest research results; and looks to the future of the research-focus faced with the new situations of the basic research of new-generation Internet architecture as well as the new demands of innovative applications on Internet architecture.

关键词： new-generation Internet network architecture multi-dimension scalability

Development of Wafer Warehouse Management System for Semiconductor Manufacturing Foundry Supply Chain

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自动化博览 2011年第S2期28卷 155-163页

作者： Yu-Chuan Liu~1 Ming Cong~2.(1.Tainan university of technology,TaiWan) (2.{2.,dalian 11602.)

Efficiency of supply chains management mostly depends on the process coordination and information integration between the supply chain *** well-known integrated circuit design houses,the wafer fabrication industries, and the integrated circuit packaging/testing business has together formed a contiguous supply chain from materials to system in Taiwan during the past *** management of the wafer hence becomes the key linkage in the semiconductor foundry supply *** objective of this paper is to develop the wafer warehouse management system for global wafer *** operations for wafer logistics management are firstly reviewed. The system requirements are analyzed by the model-driven business transformation *** business operation model and the platform-independent solution architecture for the wafer logistics management are constructed.A prototype information system is also developed for *** of this {2. can improve the effectiveness and efficiency in wafer logistics management for the semiconductor foundry supply chain.

关键词： Warehouse management Model-driven business transformation Wafer logistics management.