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Design of a Digital Management System for the Sintering Material Ground

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International Journal of Automation and computing 2012年第6期9卷 587-593页

作者： Yan Cai 1,2 Min Wu 1,2 Jin-Ni Zhou 1,2 Xin Chen 1,2 1 School of Information Science and Engineering,Central South University,Changsha 410083,china 2 Hunan Engineering laboratory for Advanced Control and Intelligent Automation,Changsha 410083,china 1. School of Information Science and Engineering Central South University Changsha 410083 China 2. Hunan Engineering laboratory for Advanced Control and Intelligent Automation Changsha 410083 China

There are many kinds and a large number of raw materials in the sintering material ground to be managed,while it is difficult to obtain the precise inventory values,which often leads to high ***,the external factors of material ground are difficult to handle,such as weather variation,order fluctuation,measurement failure and so *** solve such raw material management problems,a digital management system has been ***,the practical requirements and the raw material management processes are ***,optimization and prediction methods are used to calculate the inventory according to the practical *** the help of practical technologies and production conditions,the developed system has been applied to a large-scale sintering material *** practical running results of the application demonstrate the validity of the proposed digital management system.

关键词： Digital sintering material ground prediction methods optimization methods management system.

Single and Multiple Dynamic Impacts Behaviour of Ultra-high p.r.ormance Cementitious Composite

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Journal of Wuhan University of Technology(Materials Science) 2011年第6期26卷 1227-1234页

作者：张文华张云升 Dep.r.ment of Materials Science and Engineering Jiangsu Key Laboratory of Construction MaterialsSoutheast University

Single and multiple dynamic impacts tests were conducted on ultra-high p.r.ormance cementitious composite （UHpCC） with various volume fractions of steel fibers （0, 1%, 2%, 3%, 4%） by using the split hopkinson pressure bar （SHpB）. Besides, the ultrasonic velocity method was used to test the damage on specimens caused by dynamic impacts. For single dynamic impact, the data suggest that UHpCC obviously presents dynamic strength enhancement. With increasing of strain rate, the peak stress and peak strain increase rapidly. For multiple dynamic impacts, the results show that addition of steel fibers can obviously enhance the prop.r.ies of UHpCC to resist the repeated dynamic impacts. Firstly, the number of impacts sharply increases with the increasing of volume fraction of steel fibers. Secondly, the energy absorption ability linearly increases with addition of steel fibers. Thirdly, the steel fibers can prevent the disruption phenomenon and maintain the integrity of specimen.

关键词： UHpCC SHpB dynamic behavior multiple impacts

Thermostability of photosynthesis in two new chlorophyll b-less rice mutants

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Science china(Life Sciences) 2005年第2期48卷 139-147页

作者： LIN Zhifang1,pENG Changlian1,Xu Xinlan1,LIN Guizhu 1 & ZHANG Jingliu2 1.South china Institute of Botany,Chinese Academy of Sciences,Guangdong Key laboratory of Digital Botanical Garden,Guangzhou 510650,china 2.national Key laboratory of plant Molecular Genetics,Institute of plant physiology & Ecology,Shanghai Institutes of Biological Sci- ences,Chinese Academy of Sciences,Shanghai 200032,china 1. South china Institute of Botany Chinese Academy of Sciences Guangdong Key Laboratory of Digital Botanical Garden 510650 Guangzhou China 2. national Key laboratory of plant Molecular Genetics Institute of Plant Physiology & Ecology Shanghai Institutes of Biological Sciences Chinese Academy of Sciences 200032 Shanghai China

Leaves of the two new chlorophyll b-less rice mutants VG28-1, VG30-5 and the wild type rice cv. Zhonghua 11 were subjected to temp.r.tures 28, 36, 40, 44 and 48℃ in the dark for 30 min or gradually elevated temp.r.ture from 30℃ to 80℃ at 0.5℃/min. The thermostability of photosynthetic app.r.tus was estimated by the changes in chlorophyll fluorescence p.r.meters, photosynthetic rate and pigment content, chloroplast ultrastructure and tissue location of H2O2 accumulation. There were different patterns of Fo-temp.r.ture curves between the Chl b-less mutants and the wild type plant, and the temp.r.ture of Fo rising threshold was shifted 3℃ lower in the Chl b-less mutants (48℃) than in the wild type (51℃). At temp.r.ture up to about 45℃, chloroplasts were swollen and thylakoid grana became misty accompanied with the complete loss of photosynthetic oxygen evolution in the two Chl b-less mutants, but chloroplast ultrastruc- ture in the wild type showed no obvious alteration. After 55℃ exposure, the disordered thylakoid and significant H2O2 accumulation in leaves were found in the two Chl b-less mutants, whereas in the wild type plant, less H2O2 was accumulated and the swollen thylakoid still maintained a cer- tain extent of stacking. A large extent of the changes in qp, NpQ and Fv/Fm was consistent with the pn decreasing rate in the Chl b-less mutants during high temp.r.ture treatment as comp.r.d with the wild type. The results indicated that the Chl b-less mutants showed a tendency for higher thermosensitivity, and loss of Chl b in LHC II could lead to less thermostability of pSII structure and function. Heat damage to photosynthetic app.r.tus might be p.r.ially attributed to the in- ternal oxidative stress produced at severely high temp.r.ture.

关键词： Oryza sativa L, thermostability, chlorophyll b-less mutant, chloroplast ultrastructure, chlorophyll fluorescence, H2O2.

CYCLIC rEDUNDANCY CODE CHECK ALGOrITHM BASED ON SMALL LOOKUp TABLE

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CYCLIC REDUNDANCY CODE CHECK ALGORITHM BASED ON SMALL LOOKUP...

Magnetocaloric Effect in MnCo_(1-x)Al_xGe Compounds

2009 IEEE International Conference on communication Technology and Applications（ICCTA2009）

作者： Jianfen peng~(1 2 3) Yajian Zhou~(1 2 3) Yixian Yang~(1 2 3) 1national Engineering laboratory for Disaster Backup and recovery Beijing University of posts and Telecommunications 2Information Security Center State Key laboratory of Networking and Switching Technology Beijing University of posts and Telecommunications 3Key laboratory of network and information attack & defence technology of MOE Beijing University of posts and Telecommunications

＜正＞real time and low occupation of memory must be satisfied in the error controlling of computer *** redundancy code Generation algorithm based on small lookup table（CrCGA） is presented in this pap.r.which is based on "slicing-by -4" algorithm proposed by *** ***. and uses the distributive prop.r.y of mod function in modulo-2 arithmetic to reduce the size of cache demanded by the algorithm by *** reads 32bits at a time,only needs 2-KByte cache *** results show that CrCGA can be applied to small control equipment in distributed control system.

关键词： algorithms cyclic redundancy codes precomputation lookup table

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Journal of Materials Science & Technology 2009年第6期25卷 781-784页

作者： O. Tegus Yirgeltu Inner Mongolia Key laboratory for physics and Chemistry of Functional Materials Inner Mongolia Normal University

The effects of substitution of AI for Co on magnetic and magnetocaloric prop.r.ies of MnCo1-xAlxGe （x=0.00, 0.03, 0.05, 0.08, 0.10, 0.13, 0.15, and 0.20） compounds have been investigated by X-ray diffraction （XrD） and magnetization measurements. XrD exhibits that MnCo1-xAlxGe compounds crystallize in the orthorhombic TiNiSi-type structure for x〈0.03 and in the hexagonal Ni2In-type crystal structure for x〉0.03. Magnetic measurements show that the Curie temp.r.ture can be tuned between 286 and 347 K by changing the Co/Al ratio. The maximum magnetic entropy change determined from the isothermal magnetization measurement by Maxwell relation reaches 1.52 J/（kgK） for x=0.08 in a field change from 0 to 1.5 T around 310 K.

关键词： Transition metal compounds Magnetic entropy change Magnetic refrigeration

Functional dissociation of the left ventral occipito-temp.r.l cortex in the direct and indirect retrieval of color features

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progress in Natural Science:Materials International 2009年第11期19卷 1553-1559页

作者： Yan Wang~(a,b,*),Jinghui Zhao~b,Jiongjiong Yang~c,Lin Ma~d,Sheng He~e,Xuchu Weng~b a Beijing Key laboratory for Learning and Cognition,Dep.r.ment of psychology,Capital Normal University,Beijing 100048,china b Institute of psychology,Chinese Academy of Sciences,Beijing 100101,china c Dep.r.ment of psychology,peking University,Beijing 100871,china d pLA General Hospitals,Dep.r.ment of radiology,Beijing 100853,china e Dep.r.ment of psychology,University of Minnesota,Minneapolis,USA [a]Beijing Key laboratory for Learning and Cognition Department of Psychology Capital Normal University Beijing 100048 China [b]Institute of psychology Chinese Academy of Sciences Beijing 100101 China [c]Dep.r.ment of psychology Peking University Beijing 100871 China [d]pLA General Hospitals Department of Radiology Beijing 100853 China [e]Dep.r.ment of psychology University of Minnesota Minneapolis USA

previous studies suggest that the storage/retrieval of object features is related to brain regions that are involved in the processing of these ***,it remains unclear whether,and under what conditions,retrieving information about a feature reactivates the same region that specifically supp.r.s that feature’s *** this functional magnetic resonance imaging(fMrI) study,we comp.r.d brain activation in the left ventral occipito-temp.r.l cortex during subjects p.r.orming a color p.r.eption task,and direct and indirect color retrieval *** p.r.orming the color p.r.eption task to localize the regions responsible for color p.r.eption,subjects were intensively trained(outside of the scanner) to remember associations between colors and motion directions,and associations between colors and ***,they were asked to p.r.orm two color retrieval tasks in the scanner,with stationary and gray scaled images as control *** results showed that the bilateral posterior occipito-temp.r.l cortex was activated during the color p.r.eption *** color information was retrieved by direct cues(motion direction),the same bilateral occipito-temp.r.l region was activated. When color information was retrieved indirectly(judging whether a motion direction matched a letter by their associated colors),a region anterior to the color p.r.eption region in the left ventral occipito-temp.r.l cortex was additionally *** results provided evidence for the functional dissociation in the two subregions of the ventral occipito-temp.r.l cortex during retrieval of color features: the posterior area might relate to p.r.eptual features of color,while the anterior region might relate to the knowledge of associations with color.

关键词： Occipito-temp.r.l cortex Color p.r.eption reactivation retrieval fMrI

A MATHEMATICAL MODEL OF MIGrATION AND EXpANSION OF MEANDEr LOOpS

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Journal of Hydrodynamics 2010年第2期22卷 214-220页

作者： DAI Wen-hong TANG Hong-wu State Key laboratory of Hydrology-Water resources and Hydraulic Engineering College of Water Conservancyand Hydropower Engineering Hohai University Nanjing 210098 China

This article presents a mathematical model of the plane evolution of alluvial meandering streams,through downstream migration and lateral expansion of meander *** the conditions prevailing in natural streams,the channel centerlines follow sine-generated curves,with an assumed steady-state turbulent and subcritical flow,of large width-to-depth ratio（≥ 15,for example） and small Froude number（Fr ）.The plane deformation of the channel is caused by the action on the banks of the convective vertically-averaged meandering *** growth（migration and expansion） of meander loops is attributed to the *** computational results of the model show that the obtained migration and expansion patterns of the meander loops are in good agreement with those of observations and measurements in similar meandering streams.

关键词： mathematical model downstream migration lateral expansion meander loop vertically-averaged flow bank deformation measurements

EXIT analysis of M-algorithm based MIMO detectors and LDpC code design optimization

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Science in china(Series F) 2009年第12期52卷 2248-2258页

作者： YOU MingHou1,2, TAO XiaoFeng1,2, CUI QiMei1,2 & ZHANG ping1,2 1 Wireless Technology Innovation Institute, Beijing University of posts and Telecommunications, Beijing 100876, china 2 Key laboratory of Universal Wireless communications, (Beijing University of posts and Telecommunications), Ministry of Education, Beijing 100876, china Wireless Technology Innovation Institute Beijing University of Posts and Telecommunications Beijing 100876 China Key laboratory of Universal Wireless communications (Beijing University of Posts and Telecommunications) Ministry of Education Beijing 100876 China

This pap.r.investigates joint design and optimization of both low density p.r.ty check （LDpC） codes and M-algorithm based detectors including iterative tree search （ITS） and soft-output M-algorithm （SOMA） in multiple-input multiple-output （MIMO） systems via the tool of extrinsic information transfer （EXIT） charts. First, we present EXIT analysis for ITS and SOMA. We indicate that the extrinsic information transfer curves of ITS obtained by Monte Carlo simulations based on output log-likelihood rations are not true EXIT curves, and the explanation for such a phenomenon is given, while for SOMA, the true EXIT curves can be computed, enabling the code design. Then, we propose a new design rule and method for LDpC code degree profile optimization in MIMO systems. The algorithm can make the EXIT curves of the inner decoder and outer decoder match each other prop.r.y, and can easily attain the desired code with the target rate. Also, it can transform the optimization problem into a linear one, which is computationally simple. The significance of the proposed optimization ap.r.ach is validated by the simulation results that the optimized codes p.r.orm much better than standard non-optimized ones when used together with SOMA detector.

关键词： MIMO systems iterative receiver LDpC codes code optimization EXIT charts M-algorithm

Determination of Human Side Seam Based on the point-Cloud Data of 3D Body

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Determination of Human Side Seam Based on the Point-Cloud Da...