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Implementation of Dynamic Imagine and Hypertext in Expert System

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Systems science and Systems Engineering 1994年第1期4卷 83-88页

作者： XIA Guoping ZHAO Hengfeng(Department of Management, beijing university of Aeronautics & Astronautics,beijing 100085)

The paper presents three aspects of implementation of dynamic imagine and Hypertext in expert ***,we design the man-machine interface by using Dynamic Imagine to improve flekibilities of receiving ***, we focus on how to make use of the dynamic to develop the attificial ability of expert systems. Finally,we use hypertext to build the objective data structure as the base of the production of subjective data.

关键词： expert systems systems imagine hypertext subjective data

Designs of Contrast Enhancement Translation CNN and Copy CNN

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Designs of Contrast Enhancement Translation CNN and Copy CNN

Effects of the Reaction Conditions on Intermediates in Catalytic Wet Oxidation of Phenol

第二十三届中国控制会议

作者： Cai Huan, Su Yongmei, Min Lequan (Department of Mathematics and Mechanics, and Information Engineering school university of science and Technology beijing, beijing 100083, china)

＜正＞ Two sets of cellular neural network （CNM） templates are proposed. The first set CNNS can enhance contrast of pixels in gray-scale images and translate images in 8 compass directions, respectively. The second ones can be able to overstrike "directionally" pixels in binary images, robustness analysis gives template parameter inequalities which guarantee the corresponding CNNs working well for performing prescribed tasks. Simulation examples are given.

关键词： cellular neural network robustness template designs image processing

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Effects of the Reaction Conditions on Intermediates in Catal...

Observational features of pulsar glitches

2012年环境污染与大众健康学术会议

作者： Wang Jianbing 1* , Xu Cuihua 1 , Zhao Li 1 , Han Wenya 2 , Zhu Wanpeng 3 , Li Yanan 1 1 school of Chemical and Environmental Engineering, beijing Campus, china university of Mining and Technology, beijing 100083, china 2 Chinese Ecological Civilization Research and Promotion Association, beijing, 100035, china 3 Department of Environmental science and Engineering, Tsinghua university, beijing 100084, china.

Catalytic wet oxidation of phenol was studied at various conditions. The effects of reaction conditions on the concentration histories of the intermediates were investigated. It shows that both Ru/C and Ru/ZrO2-CeO2 exhibited excellent activity in catalytic wet oxidation of phenol. Complete mineralization of phenol could not be obtained with both catalysts. In the oxidation of phenol with Ru/ZrO2-CeO2 main intermediates were including hydroquinone, p-benzoquinone, maleic acid, fumaric acid, Cis butenedioic anhydride, acrylic acid, malonic acid, oxalic aci, acetic acid and formic acid. The reaction conditions had great effect on the distribution of intermediates during the reaction. The oxygen storage capacity of ZrO2-CeO2 enhanced the activity of Ru/ZrO2-CeO2 for carboxylic acid oxidation. Reaction temperature was the most significant factor influencing both phenol conversion and intermediates distribution. The effect of pressure on phenol conversion was relatively small compared to the temperature, but the effect of it on the concentration history of intermediates was noticeable. Initial pH mainly influenced phenol chemistry and the concentration of radicals and thus influenced the concentration histories of intermediates. High initial pH can improve phenol conversion but decrease the oxidation rate of carboxylic acid. High initial phenol concentration resulted in more polymeric products adsorbed on the surface of Ru/ZrO2-CeO2 and thus decreased the transformation rate of phenol and organic acids.

关键词： Ru/ZrO2-CeO2 concentration history catalytic wet air oxidation

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science china(Physics,Mechanics & Astronomy) 2010年第S1期53卷 3-8页

作者： WANG Na1 & YUAN JianPing1,2 1 Urumqi Observatory, NAOC, Urumqi 830011, china 2 Graduate university of CAS, beijing 100049, china 1. Urumqi Observatory NAOC Urumqi 830011 China2. Graduate University of CAS Beijing 100049 China

Pulsar glitches are sudden increases in the rotation rate which probably result from angular momentum transfer within the neutron star. We review the observational features of the 39 glitches detected at Nanshan from 2000 to 2008, including several events which appear to be slow glitches. A wide variety of post-glitch behavior is observed with very little recovery in some pulsars and over-recovery in others. Analysis of the whole sample of known glitches shows that fractional glitch amplitudes are correlated with characteristic age with a peak at about 105 years, but there is a spread of two or three orders of magnitude at all ages. For individual pulsars with many glitches, the time until the next glitch is sometimes proportional to the fractional glitch amplitude.

关键词： neutron star pulsar observation timing glitch

Optimizing Concurrent Product Development Process Using Genetic Algorithm

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Systems science and Systems Engineering 2000年第4期10卷 503-510页

作者： YAN Ji\|hong,\ WU Cheng CIMS Center, Department of Automation, Tsinghua university, beijing 100084, china

Scheduling concurrent activities is of great significance to shorten development lead time and minimize the cost, a heuristic optimization scheduling approach therefore is proposed for concurrent product development process, in which some uncertain crucial parameters are determined by genetic algorithm (GA). To ensure the optimal concurrent scheduling and the effective utilization of resources along with the fluent delivery of information, some key factors such as time order, information, resources, lead time and overlapping time of activities are taken into account adequately, and the weights of these factors are fixed by GA. In addition, role allocation and feedback revision process are realized in optimization module. The simulation example is a part of a certain product development process, and the results show the feasibility of the algorithm.

关键词： concurrent engineering product development process optimization scheduling

Suggestion of a dynamic model of North china basin-range system

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Progress in Natural science:Materials International 2003年第4期 73-82页

作者： SHAO Ji'an, ZHANG Changhou, ZHANG Luqiao, and ZHANG Yongbei (1. school of Earth and Space sciences, Peking university, beijing 100871, china 2. china university of Geosciences, beijing 100873, china 3. Inner-Mongolia Institute of Geology, Hohhot 010020, china 4. Institute of Geology and Geophysics, Chinese A-cademy of sciences, beijing 100029, china) school of Earth and Space sciences Peking University Beijing 100871 China china university of Geosciences Beijing 100873 China Inner-Mongolia Institute of Geology Hohhot 010020 China Institute of Geology and Geophysics Chinese Academy of Sciences Beijing 100029 China

It is found from preliminary studies that previous basin-range models have difficulties in explaining the formation of theMesozoic North-china basin-range system. This work suggests a new model-" tectonic thermal erosion" model, which considers the North china basin of Late Mesozoic and its peripheral ranges as a unified system, identifies relationship between upwelling and lateral spreading of the asthenolith with horizontal rnovement and deformation of the upper crust in the system, clarifies the effects of underplat-ing erosion on the crustal evolution, and tries to establish an earth-dynamic modei of the North china Mesozoic basin-range supported by numerical simulation.

关键词： North china Mesozoic-Cenozoic basin-range system.

REGIONAL ELEMENT ABUNDANCES OFCONTINENTAL CRUSTOBODIES IN china

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Geotectonica et Metallogenia 1999年第2期23卷 117-124页

作者： Li Tong Yuan Huaiyu Wu Shengxi and Cheng Xianfu (Dept. of Geology, university of science and Technology beijing, beijing 100083, china)

The continental crustobody of china is composed of three regional crustobodies, i. e., the Cathaysian crustobody, the West china crustobody and the South Tibet crustobody. This paper gives their mass models and element abundance values and discusses their regional abundance characteristics from metallogenic elernents, heat source elements and lanthanide elements. The conclusion is that their geochemical backgrounds are quite different from each other.

关键词： Continental crustobody china element abundance regional geochemical characteristic

Feasibility study for joint retrieval of air density and ozone concentration profiles in the mesosphere using an ultraviolet limb-scan technique

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Progress in Natural science:Materials International 2004年第6期 42-48页

作者： GUO Xia 1 *,LU Yao 1,2 and L Daren 1(1. LAGEO,Institute of Atmospheric Physics,Chinese Academy of sciences,beijing 100029,china 2. Department of Physics,beijing university of science and Technology,beijing 100081,china) LAGEO，Institute of Atmospheric Physics，Chinese Academy of sciences，beijing 100029，china LAGEO，Institute of Atmospheric Physics，Chinese Academy of sciences，beijing 100029，china Department of Physics，beijing university of science and Technology，beijing 100081，china

For joint retrieval of vertical distributions of both air density and ozone concentration in the mesosphere which are two of the most important atmospheric parameters in this region,a retrieval scheme is suggested by using satellite limb scan observation at two UV wavelengths,i.e. 255 nm and 296 nm . The retrieval scheme is the modification of the direct method by Aruga and Heath with two UV wavelengths and two atmospheric parameters. Feasibility study was made based on simulated limb scan radiances computed with a single scattering radiative transfer algorithms of spherical geometry developed by the present authors and the inversion technique. Results of the simulations show that it is feasible to retrieve air density and ozone concentration vertical distributions on a global basis from satellite UV limb scan over the altitude range of 50 km ～ 100 km with a vertical resolution of 1 km. The errors of the inferred profiles by using the joint inversion algorithm are greatly deduced,especially in the upper-mesosphere heights,compared with those by using the single inversion technique with a single wavelength.

关键词： mesosphere air density and ozone concentration ultraviolet limb-scan technique.

PIXE and INAA studies on ancient potteries from Guangfulin relics in Shanghai

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Progress in Natural science:Materials International 2007年第11期17卷 1348-1356页

作者： Lin Jiawei1, Cheng Huansheng1, Zhang Zhengquan1, Zhang Bin1, Feng Songlin2, Song Jian3, Gao Menghe4 and Zhu Dan1(1. Applied Ion Beam Physics Laboratory, Key Laboratory of the Ministry of Education, Institute of Modern Physics, Fudan university, Shanghai 200433, china 2. Key Laboratory of Nuclear Analytical Techniques, Institute of High Energy Physics, beijing 100039, china 3. Shanghai Museum, Shanghai 200003, china 4. Department of Cultural Heritage and Museology, Fudan university, Shanghai 200433, china) Applied Ion Beam Physics Laboratory Key Laboratory of the Ministry of Education Institute of Modern Physics Fudan University Shanghai 200433 China Key Laboratory of Nuclear Analytical Techniques Institute of High Energy Physics Beijing 100039 China Shanghai Museum Shanghai 200003 China Department of Cultural Heritage and Museology Fudan University Shanghai 200433 China

This paper reports the study of ancient potteries unearthed from the Guangfulin site in Shanghai. From the external features of these potteries, archeologists can classify them into two different cultural types: Liangzhu culture (local culture) and a new culture which might be derived elsewhere, but they can not recognize whether they were produced in the same place. Proton induced X-ray emission (PIXE) and instrumental neutron activation analysis (INAA) were used to measure the chemical compositions of the samples and the results were analyzed using multivariate statistics. We found that the two methods can complement each other and their database can be mutually referenced in the study of ancient potteries. Experimental results show that the compositions of the potteries from the two cultural types are different, which means that the materials for ancient potteries of new culture originate from elsewhere. This supports the archaeologists’ speculation that a group of ancient people migrated to Shanghai from some other places 4000 years ago.

关键词： PIXE INAA factor analysis Guangfulin ancient pottery