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Investigation of 'chazi'(damaged-enamels)on Chenghua doucai Porcelains

science china(Technological sciences) 2009年第6期52卷 1722-1729页

作者： DU Feng1 & SU BaoRu2 1 Institute of Chemistry & Molecular Engineering,qingdao university of science & technology,qingdao,china 2 college of information science & technology,qingdao university of science & technology,qingdao,china Institute of Chemistry & Molecular Engineering Qingdao University of Science & Technology Qingdao China college of information science & technology Qingdao University of Science & Technology Qingdao China

At the end of the 1950s,Sun Yingzhou considered that the 'chazi'(damaged colour)on Chenghua doucai imperial porcelain as a defect was originally produced in firing process during Chenghua period(1465―1487).Researchers in china have accepted his *** any fragment with the 'chazi' has never been found in several tons of Chenghua imperial sherds excavated from Ming imperial kiln site in *** china,few scholars have questioned the formation of 'chazi',and further investigated *** researchers at the Research Laboratory in the British Museum,employing unde-structive EDXRF,have analyzed the chemical composition of the 'chazi'(damaged colour)on a Chen-ghua doucai stem cup in the museum,and they have confirmed that the 'chazi'(damaged colour)was caused by the fire of the Jianfu palace in the Forbidden City in *** on their research,the authors studied the colour chemical principle of the 'chazi's' formation *** to the ceramic technology principle,scientific reasoning for the 'chazi' was carried *** the help of the history of Qing court,the brainteaser of the 'chazi' was totally uncovered,the misunderstanding for the 'chazi' has also been *** research also suggests that employing modern science and technology is a direction to study Chinese ancient ceramic further.

关键词： Chenghua doucai porcelains court eunuchs the set on fire at the Jianfu palace ’chazi’(damaged-enamels) the British Museum colour chemical principle archaeology using science and technology

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Further study of sources of the imported cobalt-blue pigment used on Jingdezhen porcelain from late 13 to early 15 centuries

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science china(Technological sciences) 2008年第3期51卷 249-259页

作者： DU Feng1 & SU BaoRu2 1 Institute of Chemistry & Molecular Engineering, qingdao university of science & technology, qingdao 266000, china 2 college of information science technology, qingdao university of science & technology, qingdao 266000, china Institute of Chemistry & Molecular Engineering Qingdao University of Science & Technology Qingdao 266000 China college of information science technology Qingdao University of Science & Technology Qingdao 266000 China

Based on the conclusion of modern scientific analysis: the cobalt-blue pigment applied on Jingdezhen official porcelain during Yuan Dynasty and prior to Xuande reign of Ming Dynasty (1271―1425) contains high iron and low manganese con- tents, and the cobalt during Xuande and after Xuande periods (after 1426) of Ming Dynasty contains high manganese and low iron contents, in combination with the traditional archaeological method, the related historical textual records were in- vestigated and analyzed, the imported cobalt employed on Jingdezhen official porcelain was studied comprehensively, systematically and logically. In fact, 'Su Ma Li Qing' (Samarra-blue) and 'Su Bo Ni Qing' (Sumatra-blue) are definitely different cobalt ores originated in different places, because of their very similar translitera- tions in Chinese, the confusion has appeared in ancient books for more than 400 years, which considered 'Su Ma Li Qing' and 'Su Bo Ni Qing' as the same co- balt-blue pigment. In this article the mistake was corrected, the possible producing places and the approximate eras of the two pigments imported to china and used at Jingdezhen were also suggested.

关键词： imported cobalt-blue pigments employed on official blue-and-white porcelain Yuan Dynasty early Ming Dy- nasty Mn/Fe content ratio Su Ma Li Qing (Samarra-blue) Su Bo Ni Qing (Sumatra-blue) scientific archae- ological research transliteration

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数字地图点状要素合并变换算法研究

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系统仿真学报 2009年第5期21卷 1399-1402页

作者：唐文静赵玉新郝燕玲汤金辉范玮哈尔滨工程大学自动化学院哈尔滨150001 青岛科技大学信息科学技术学院青岛266061

合并变换是将匹配地物的不同表现形式一致化,它是地图合并过程中解决数据二义性问题的一个关键步骤。以往的解决方法都是依据一幅图对另一幅图进行直接调整,没有考虑另一幅图上要素的位置对合并变换的影响,这必定带来一定的误差。研究... 详细信息

合并变换是将匹配地物的不同表现形式一致化,它是地图合并过程中解决数据二义性问题的一个关键步骤。以往的解决方法都是依据一幅图对另一幅图进行直接调整,没有考虑另一幅图上要素的位置对合并变换的影响,这必定带来一定的误差。研究多评价因素的点状要素合并变换算法,分析确定影响合并变换的三大主要评价因素,并通过熵法决定其重要性,进而使用加权平均来获得合并变换后的位置。最后结合海陆图的部分点状要素对该算法加以检验,结果表明该算法提高了点状要素的空间位置合并变换质量。

关键词：点状要素合并变换评价因素熵法

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Approximately optimal tracking control for discrete time-delay systems with disturbances

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Progress in Natural science:Materials International 2008年第2期18卷 225-231页

作者： Gongyou Tang a,,Huiying Sun b,Haiping Pang c a college of information science and Engineering,Ocean university of china,qingdao 266100,china b college of information and Electrical Engineering,Shandong university of science and technology,qingdao 266510,china c college of Automation and Electronic Engineering,qingdao university of science and technology,qingdao 266042,china college of information science and Engineering Ocean University of China Qingdao 266100 China college of information and Electrical Engineering Shandong University of Science and Technology Qingdao 266510 China college of Automation and Electronic Engineering Qingdao University of Science and Technology Qingdao 266042 China

Optimal tracking control (OTC) for discrete time-delay systems affected by persistent disturbances with quadratic performance index is considered. By introducing a sensitivity parameter,the original OTC problem is transformed into a series of two-point boundary value (TPBV) problems without time-advance or time-delay terms. The obtained OTC law consists of analytic feedforward and feedback terms and a compensation term which is the sum of an infinite series of adjoint vectors. The analytic feedforward and feedback terms can be found by solving a Riccati matrix equation and two Stein matrix equations. The compensation term can be obtained by using an iteration formula of the adjoint vectors. Observers are constructed to make the approximate OTC law physically realizable. A simulation example shows that the approximate approach is effective in tracking the reference input and robust with respect to exogenous persistent disturbances.

关键词： Discrete systems Time-delay systems Disturbances Optimal control Tracking control

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Series-based approximate approach of optimal tracking control for nonlinear systems with time-delay

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Progress in Natural science:Materials International 2008年第12期18卷 1571-1576页

作者： Gongyou Tang~a Mingqu Fan~(a,b) a college of information science and Engineering,Ocean university of china,qingdao 266100,china b college of information and Engineering,Shandong university of science and technology,Jinan 250031,china [a]college of information science and Engineering Ocean University of China Qingdao 266100 China [b]college of information and Engineering Shandong University of Science and Technology Jinan 250031 China

The optimal output tracking control (OTC) problem for nonlinear systems with time-delay is *** a series-based approx- imate approach,the original OTC problem is transformed into iteration solving linear two-point boundary value problems without time- *** OTC law obtained consists of analytical linear feedback and feedforward terms and a nonlinear compensation term with an infinite series of the adjoint *** truncating a finite sum of the adjoint vector series,an approximate optimal tracking control law is obtained.A reduced-order reference input observer is constructed to make the feedforward term physically *** exam- ples are used to test the validity of the series-based approximate approach.

关键词： Nonlinear systems Time-delay Tracking control Optimal control Observer

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A Discrete Spectral Problem and Related Hierarchy of Discrete Hamiltonian Lattice Equations

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Communications in Theoretical Physics 2007年第8期48卷 193-198页

作者： XU Xi-Xiang college of science,Shandong Uniersity of science and technology,qingdao 266510,chinaCAO Wei-Li college of science,Uniersity of Shanghai for science and technology,Shanghai 200093,china college of science Shandong University of Science and Technology college of science University of Shanghai for Science and Technology

Staring from a discrete matrix spectral problem,a hierarchy of lattice soliton equations is presentedthough discrete zero curvature *** resulting lattice soliton equations possess non-local Lax *** structures are esta... 详细信息

关键词： lattice soliton equation zero curvature representation Hamiltonian structure Liouville integrability

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Preparation, characterization, viscosity and thermal conductivity of CaCO_3 aqueous nanofluids

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science china(Technological sciences) 2010年第2期53卷 360-368页

作者： ZHU HaiTao1, LI ChangJiang2, WU DaXiong1, ZHANG CanYing1 & YIN YanSheng2 1 college of Materials science and Engineering, qingdao university of science and technology, qingdao 266042, china 2 Department of Materials, Ocean university of china, qingdao 266003, china 1. college of Materials science and Engineering Qingdao University of Science and Technology Qingdao 266042 China2. Department of Materials Ocean University of China Qingdao 266003 China

CaCO3 aqueous nanofluids were prepared by dispensing aqueous CaCO3 paste into distilled water under ultrasonic vibration. The actual microstructures of the CaCO3 nanofluids with different particle volume fractions were characterized by freeze etching replication transmission electron microscopy (FERTEM). Thermal conductivity and rheological behavior of the nanofluids were measured by standard analyzers. The results show that CaCO3 paste as raw material for nanofluids is advantageous to reducing aggregation of primary nanoparticles. The effective viscosities and effective thermal conductivities of the CaCO3 nanofluids are related to the aggregates of nanoparticles and can be well predicted by the modified Krieger & Dougherty formula and the modified Hamilton & Crosser model, respectively.

关键词： CaCO3 nanofluid thermal conductivity viscosity microstructure

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Nano Au/TiO_2 hollow microsphere membranes for the improved sensitivity of detecting specific DNA sequences related to transgenes in transgenic plants

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science china Chemistry 2008年第11期51卷 1066-1073页

作者： ZHANG YongChun, YANG Tao, ZHOU Na, ZHANG Wei & JIAO Kui college of Chemistry and Molecular Engineering, qingdao university of science and technology, qingdao 266042, china 1. college of Chemistry and Molecular Engineering Qingdao University of Science and Technology Qingdao 266042 China

Gold nanoparticles (nano Au)/titanium dioxide (TiO2) hollow microsphere membranes were prepared on the carbon paste electrode (CPE) for enhancing the sensitivity of DNA hybridization detection. The immobilization of nano Au and TiO2 microsphere was investigated with cyclic voltammetry (CV) and electrochemical impedance spectroscopy (EIS). The hybridization events were monitored with EIS us-ing [Fe(CN)6]3-/4- as indicator. The sequence-specific DNA of the 35S promoter from cauliflower mosaic virus (CaMV35S) gene was detected with this DNA electrochemical sensor. The dynamic detection range was from 1.0×10-12 to 1.0×10-8 mol/L DNA and a detection limit of 2.3×10-13 mol/L could be ob-tained. The polymerase chain reaction (PCR) amplification of the terminator of nopaline synthase (NOS) gene from the real sample of a kind of transgenic soybean was also satisfactorily detected.

关键词： Au nanoparticle TiO_2 hollow microsphere DNA electrochemical biosensor CaMV35S gene NOS gene

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The structural analysis of fuzzy measures

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science china(information sciences) 2011年第1期54卷 38-50页

作者： ZHANG Ling1,ZHANG Bo2 & ZHANG YanPing1 1 Computer science college,Anhui university,Hefei 230039,china 2State Key Lab of Intelligent technology & Systems Tsinghua National Lab for information science & technology information science & technology college,Computer science & technology,Tsinghua university,Beijing 100084,china 1. Computer science college Anhui University Hefei 230039 China2. State Key Lab of Intelligent Technology & Systems Tsinghua National Lab for information science & technology information science & technology college Computer Science & Technology Tsinghua University Beijing 100084 China

From quotient space based granular computing theory we explore the fuzzy measures of fuzzy sets. Based on the structural analysis of fuzzy sets,we present an"isotropism"*** this assumption we achieved the following insights:(1)the uniqueness of a fuzzy measure being isotropic on a finite complete semi-ordered set;(2)the necessary and suffcient condition of the isomorphism for fuzzy measure functions in fuzzy mathematics;(3)the necessary and suffcient condition that fuzzy measures have fuzzy and granular monotonicity;(4)under a certain assumption,the analytic expression for fuzzy *** results clarify the relationship between fuzzy measures and granular computing,reveal the essence of fuzzy measures,and provide a simple way of constructing fuzzy measures.

关键词： quotient space fuzzy set fuzzy measure rough set structural analysis

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A thin-layer spectroelectrochemical study of 3,3',5,5'-tetramethylbenzidine at SnO_2:F film optically transparent electrode

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science china Chemistry 2004年第4期47卷 267-275页

作者： JIAO Kui1, YANG Tao2 & NIU Shuyan1,2 1. college of Chemistry and Molecular Engineering, qingdao university of science and technology, qingdao 266042, china 2. college of Chemistry and Chemical Engineering, Ocean university of china, qingdao 266003, china Correspondence should be addressed to Jiao Kui 1. college of Chemistry and Molecular Engineering Qingdao University of Science and Technology 266042 Qingdao China 2. college of Chemistry and Chemical Engineering Ocean University of China 266003 Qingdao China

The electrooxidation of 3,3′,5,5′-tetramethylbenzidine (TMB) is dependent on the pH value of Britton-Robinson (B-R) buffer solution. In this work, the electrooxidation behavior of TMB was investigated with a SnO2:F film optically transparent thin-layer spectroelectrochemical cell. TMB underwent one two-electron electrooxidation process in the pH range from 2.0 to < 4.0, and two successive one-electron electrooxidation processes in the pH range from 4.0 to < 7.0 in the B-R buffer solution. At pH 6.5, the electrooxidative product of TMB generated a subsequent chemical reaction to yield an azo compound. Several spectroelectrochemical techniques, such as thin-layer cyclic voltammetry, thin-layer cyclic voltabsorptometry, thin-layer potential-controlled electrolysis absorptometry, thin-layer single-potential-step chronoabsorptometry, thin-layer dou-ble-potential-step chronoabsorptometry, thin-layer single-potential-step open-circuit relaxation chronoabsorptometry, were applied to this investigation. The formal potential E0’ and the electron transfer number corresponding to the electrooxidation of TMB in B-R buffer solution, and the reaction rate constant of the subsequent chemical reaction were determined.

关键词： 3,3′,5,5′-tetramethylbenzidine tin oxide film optically transparent electrode thin-layer spectroelectro-chemistry electrooxidation

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