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science china(life sciences) 2008年第12期51卷 1094-1100页

作者： MIAO FengPing1,2, LU DaYan1, ZHANG ChengWu3, ZUO JinCheng4, GENG YaHong1, HU HongJun1 & LI YeGuang1, 1 Laboratory of Plant Biotechnology, Wuhan Botanical Garden, Chinese Academy of sciences, Wuhan 430074, china 2 Laboratory of Coastal Zone Bioresources, yantai Institute of Costal Zone Research for Sustainable Development, Chinese Academy of sciences, yantai 264003, china 3 Institute of Hydrobiology, Jinan university, Guangzhou 510632, china 4 college of life science, ludong university, yantai 264025, china Laboratory of Plant Biotechnology Wuhan Botanical Garden Chinese Academy of Sciences Wuhan China Laboratory of Coastal Zone Bioresources Yantai Institute of Costal Zone Research for Sustainable Development Chinese Academy of Sciences Yantai China Institute of Hydrobiology Jinan University Guangzhou China college of life science Ludong University Yantai China

The compositions and contents of astaxanthin esters and fatty acids in four types of Haematococcus pluvialis cells were studied by HPLC and GC-MS. Results showed that the synthesis and accumulation of astaxanthin was independent of the formation of cysts, but was highly correlated with the synthesis and accumulation of fatty acids, though it is an well known phenomenon that the accumulation of astaxanthin is usually accompanied by the formation of cyst. The red cysts contain more than 30% of fatty acids, with 81% of the unsaturated fatty acids. Taken together, besides a resource of astaxanthin, H. pluvialis would be a good resource of valuable fatty acids.

关键词： Haematococcus pluvialis astaxanthin esters cyst formation fatty acids GC-MS

Protein trans-splicing based dual-vector delivery of the coagulation factor Ⅷ gene

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中国科学：生命科学英文版 2010年第6期53卷 683-689页

作者： ZHU FuXiang,LIU ZeLong,CHI XiaoYan & QU HuiGe life science college of ludong university,yantai 264025,china life science college of ludong university

A dual-vector system was explored for the delivery of the coagulation factor VIII gene,using intein-mediated protein trans-splicing as a means to produce intact functional factor VIII post-translationally.A pair of eukaryotic expression vectors,expressing Ssp DnaB intein-fused heavy and light chain genes of B-domain deleted factor VIII (BDD-FVIII),was *** transient co-transfection of the two vectors into 293 and COS-7 cells,the culture supernatants contained (137±23) and (109±22) ng mL–1 spliced BDD-FVIII antigen with an activity of (1.05±0.16) and (0.79±0.23) IU mL–1 for 293 and COS-7 cells,*** spliced BDD-FVIII was also detected in supernatants from a mixture of cells transfected with inteinfused heavy and light chain *** spliced BDD-FVIII protein bands from cell lysates were visualized by Western *** data demonstrated that intein could be used to transfer the split factor VIII gene and provided valuable information on factor VIII gene delivery by dual-adeno-associated virus in hemophilia A gene therapy.

关键词： intein protein trans-splicing coagulation factor VIII dual-vector gene delivery

An Analysis to the Driving Forces for Water and Salt Absorption in Roots of Maize Seedlings Under Salt Stress

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Agricultural sciences in china 2010年第6期9卷 806-812页

作者： ZHU Jian-jun,BAI Xin-fu,BU Qing-mei and JIANG Xiao-man college of life sciences,ludong university,yantai 264025,P.R.china college of life sciences Ludong University Yantai 264025 P.R.China

When maize seedlings were subjected to salt stress,a decline in root xylem pressure was observed within seconds,followed by a gradual increase in Na＋ deposition in the *** magnitude of xylem pressure response was positively correlated with,but not proportional to the intensity of the stress.A continuous recording of the xylem pressure profile showed that self-regulation of the xylem pressure existed before and after the imposition of salt stress when the environmental conditions were relatively *** salt induced increase in xylem tension dominated the total water potential of the plant when the salt stress was mild,but the osmotic potential became more prominent when the NaCl concentration in the root bathing solution was raised to over 100 mol *** average transpiration rate of the seedlings dropped by 40% when the NaCl concentration in the root ambient was increased to 150 mol *** salt stress resulted in the decline of both the xylem pressure potential and the osmotic potential in the root xylem,the changes in the total water potential of the root xylem solution were always smaller than the changes in the water （osmotic） potentials of the solution bathing the *** analysis to the water relations of maize seedlings showed that not only the water potential components,but the radial reflection coefficient of the roots was also dependent on the level of *** the NaCl level in the root bathing solution was raised from 25 to 150 mol m-3,the radial reflection coefficient of the root declined from 0.43 to *** small change resulted in a remarkable increase in the normalised relative NaCl absorption by 2.4 times,indicating that the radial reflection coefficient of root played a very important role in regulating the absorption of NaCl in maize seedlings under salt stress.

关键词： maize seedlings salt stress radial reflection coefficient of root xylem pressure transpiration

Pointwise uniformities and pointwise metrics on fuzzy lattices

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Chinese science Bulletin 1997年第9期42卷 718-720页

作者： SHI FuguiDepartment of Mathematics, yantai Teachers college, yantai 264025, china Department of Mathematics Yantai Teachers College Yantai China

UP till now there has been much spectacular and creative work about the theories of uniformi-ties and metrics in topological *** this is mostly generalizations and developmentsof Hutton’s and Erceg’s pointless *** cannot directly reflect the characteristics ofpointwise *** this note we shall set up a theory of pointwise uniformity and a theoryof pointwise metric on fuzzy lattices.

关键词： fuzzy lattice pointwise uniformity pointwise metric complete regularity remote-neighborhood mapping.

Delay-induced coherence bi-resonance-like behavior in stochastic Hodgkin-Huxley neuron networks

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science china Chemistry 2010年第8期53卷 1762-1766页

作者： HAO YingHang,GONG YuBing,LIN Xiu & MA XiaoGuang School of Physics,ludong university,yantai 264025,china School of Physics Ludong University Yantai China

In this paper,we study how information transmission delays affect the spiking behavior of electrically coupled stochastic Hodgkin-Huxley (HH) neurons on Newman-Watts *** is found that the spiking behavior becomes the most regular at an optimal time delay,indicating the occurrence of delay-induced coherence resonance-like (CR-like) ***,there are different CR-like types,depending on the membrane patch size of the *** a smaller patch size,only single CR-like behavior occurs;while for a larger patch size,coherence bi-resonance-like (CBR) behavior *** findings show that the delay-induced CR-like behavior is closely related to the channel noise strength,and the coupled neurons may exhibit different spiking behaviors under the interplay of the channel noise and time ***,the channel noise should be taken into account in the study of time delay-related spiking activity in stochastic HH *** work provides new insight into the role of channel noise and information transmission delays in realistic neural systems.

关键词： stochastic HH neuron delay through electric synapse coherence resonance and bi-resonance Newman-Watts network

Multiple enhancements of rate oscillations by non-Gaussian noise in NO reduction with CO on Pt(100)

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science china Chemistry 2010年第1期53卷 226-230页

作者： GONG YuBing,XIE YanHang & HAO YingHang School of Physics and Electronic Engineering,ludong university,yantai 264025,china School of Physics and Electronic Engineering Ludong University Yantai China

The effect of the non-Gaussian colored noise(NGN) on the dynamics of nonlinear systems has attracted increasing *** work numerically studied the effect of a particular kind of the NGN,mainly in terms of its departure from Gaussian noise,on the rate oscillations(RO) in the catalytic reduction of NO with CO on Pt(100) *** was found that power spectrum density changes non-monotonically and the signal-to-noise ratio shows several peaks with increasing departure,demonstrating the presence of"departure-induced multiple resonance".Since the departure of the NGN determines the probability distribution and hence denotes the type of the noise,the phenomenon of"departure-induced multiple resonance"not only gives multiple enhancements of the RO by virtue of the departure of the NGN,but also implies that,besides Gaussian noise,various other types of noise may enhance the RO in the surface catalytic reaction systems.

关键词： non-Gaussian colored noise catalytic reduction of NO with CO on Pt(100) reaction rate oscillation coherence resonance

Consensus of multiagent systems based on disturbance observer

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控制理论与应用（英文版） 2010年第2期8卷 145-150页

作者： Hongyong YANG 1 , Fucai WANG 2 , Zhenxing ZHANG 3 , Guangdeng ZONG 4 (1.School of Information science and Engineering, ludong university, yantai Shandong 264025, china 2.School of Electronic and Electrical Engineering, ludong university, yantai Shandong 264025, china 3.School of Automation, Southeast university, Nanjing Jiangsu 210096, china 4.Institute of Automation, Qufu Normal university, Qufu Shandong 273165, china) School of Information science and Engineering Ludong University Yantai Shandong China School of Electronic and Electrical Engineering Ludong University Yantai Shandong China School of Automation Southeast University Nanjing Jiangsu China Institute of Automation Qufu Normal University Qufu Shandong China

The objectives of this work are the development and design of disturbance observers (DO’s) for a team of agents that accomplish consensus on agents’ states in the presence of exogenous disturbances. A pinning control strategy is designed for a part of agents of the multiagent systems without disturbances, and this pinning control can bring multiple agents’ states to reaching an expected consensus value. Under the effect of the disturbances, nonlinear disturbance observers are developed for disturbances generated by an exogenous system to estimate the disturbances. Asymptotical consensus of the multiagent systems with disturbances under the composite controller can be achieved. Finally, by applying an example of multiagent systems with switching topologies and exogenous disturbances, the design of the parameters of DO’s are illuminated.

关键词： Multiagent systems Disturbance observer Pinning control Consensus

The cohomology group of weak entwining structure

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science china Mathematics 2007年第5期50卷 665-674页

作者： Ling JIA & Fang LI Department of Mathematics, ludong university, yantai 264025, china Department of Mathematics, Zhejiang university, Hangzhou 310027, china Department of Mathematics Ludong University Yantai China Department of Mathematics Zhejiang University Hangzhou China

In this paper, we reveal that a weak entwining structure admits a rich cohomology theory. As an application we compute the cohomology of a weak entwining structure associated to a weak coalgebra-Galois extension.

关键词： weak entwining structure cohomology group 16W80 16W99

Calculations of Chemical Reaction Dynamics for D+ H_2(j_i,ν_i=0)→DH(j_f, ν_f=0) + H

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Chinese Chemical Letters 1997年第2期8卷 153-156页

作者： Li Qin SI(Editorial Office of Natural science, yantai Normal university, yantai, 264025) Editorial Office of Natural science Yantai Normal University Yantai 264025 China

The constant Centrifugal potential approximation is Corrected so as to apply to the reactions of rotational excited reactants for D + H2 (j,, νi = 0 ) -DH(jf, νf = 0) + H. Our results show that the contributions fro... 详细信息

关键词： DH j_f H2 j_i i=0 Calculations of Chemical Reaction Dynamics for D

ROBUST MODEL PREDICTIVE CONTROL OF CONTINUOUS UNCERTAIN SYSTEMS

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Journal of Systems science & Complexity 2008年第2期21卷 267-275页

作者： Xiaohua LIU Chunyan HAN School of Mathematics and Information Ludong University Yantai 264025 China School of Control science and Engineering Shandong University Jinan 250061 China

The authors concern robust model predictive control for linear continuous systems with polytopic uncertainties and input constraints. At each sampling time, a piecewise constant control sequence is obtained by solving a set of linear matrix inequalities. The sufficient conditions on the existence of the model predictive control are given, and the robust stability of the closed-loop systems is guaranteed. A simulation example illustrates the efficiency of the proposed method.

关键词： Linear matrix inequality model predictive control polytopic uncertain systems robust control.