A functionally gradient elastic beam bonded with piezoelectric patches is analyzed in the paper. It is assumed that the physical properties vary as a power function of thickness coordinate variables. The influence of electric field intensity on its structure deformation was considered. Hamilton principle was employed to derivethe equation of the motion of a simplysuppor ted functionally gradient elastic beam. The relations between nature characteristics of FGM beam and electric field intensity are presented. The influences ofelectric field intensity and gradient index on the nature characteristics were discussed via numerical examples. It’s found that the vibration characteristics can be controlled effectively by means of regulating the electric field intensity applied on actuators. The effects of the gradient indexes on nature frequency of FGM beam are obvious, so we should pay attention to them in structure designing.

A simple numerical algorithm on the spectral radius of irreducibly nonnegative matrix is given with the matrix diagonally similar change and PerronFrobenius Theorem. The algorithm is similar to a classical onepower method to calculate the largest matrix eigenvalue by module, which can be applied to any irreducibly nonnegative matrix, and will be quick and easy by choosing parameters properly.

The goal programming of the large scale with a general diagonal structure was decomposed into several subproblems. The relations among the optimum solutions of the subproblems and the relations among the optimum solutions of the subproblems and the optimum solutions of the original problem were studied. At the same time, the existences of optimum solutions of the original problem were also discussed.

We studied the existence of periodic solutions of a neural network with time delay. We firstly investigated the local stability of the system and deduced the conditions of a local Hopf bifurcation. Moreover, using the global Hopf bifurcation theorem for FDE, we also obtained the conditions that guarantee the neuron has multiple periodic solutions.

The impulsive control of the system of two species of preypredators with sparse effect was studied. Stable sufficient conditions of the system via impulsive control were derived by stability theory of impulsive control. And the upper bounds of the impulsive control time interval were estimated.

By means of the deep researches on basic concepts of point set topology and relationships among them, and the thought and method of dual category the concept of internal derived set was introduced in point set topology. Based on the concept of internal derived set, the concept of correlative subset was proposed, and its fundamental properties and relationships between it and other concepts were studied, and some good results were obtained. At last, as the application of internal derived set and correlative subset, several equivalent characterizations of disconnected space were given by using the properties of correlativetype disconnected space and disconnected space and relationships between them.

The present paper deals with a class of superlinear equations with weight. Firstly, introducing a new coordinate transformation, we translated the impact system into a new equal system, which is defined on the whole plane. Secondly, under a certain super-linear condition, we analyzed the solutions and got the dynamics of the solutions of big norms. We found that the Poincaré map has twist property on the boundary of a big torus. Finaly, we obtained the existences of ainfinite number of periodic solutions of impact system repeatedly using the generlized PoincaréBirkhoff twinst theorem.

The Newton continuation method for finding the periodic solutions of high order Duffing equations is presented, and it is proved that the improved Newton iterative formula possesses global convergence.

Considering the weighted backward shift operators with constantweight and using a relative result on similarity, we gave a complete classification under the sense of topological conjugacy for this class of operators.

We investigated the problem of GC₁ blending and corner filling with a quadratic surface for two givenquadratic surfaces with the help of smooth cofactor, presenting the sufficient and necessary condition of GC₁ blending with the quadratic surface, and giving a method of corner filling with quadratic surfaces. This work introduces an effective solution for the problem of hole filling in polygonal region.

We considered the feasibility and stability of openloop minmax model prediction control (OLMMMPC) for systems with additive bounded uncertainties. It is concluded that the OLMMMPC may not be feasible and stable if it is only initially feasible. A sufficient condition of the OLMMMPC that ensuresits feasibility and stability is given. Then we proposed an improved OLMMMPC algorithm which guarantees robust stability of the closed loop system once the problem is initially feasible.

A sufficient condition of existence and uniqueness of a class of differential equation with continuous timelag positive almost periodic solution was obtained by using the theorem of the existence and uniqueness of almost periodic solution and the method of constructing Liapunov functional.

A formal operational semantics based on abstract machine is presented for the implementation of a subset of singleaction signal oriented statements. State transforming regulations of every singleaction testing statement is presented respectively. According to the semantics, the function of each single-action statement and the relation between them can be clearly under stood. Furthermore an implement program of single-action statements can be made easily.

On the basis of existing network monitoring techniques, we presented a model of cluster monitoring called MCM. MCM resorts diverse monitoring jobs to a set of monitoring modules. MCM can add/remove the modules flexibly, and thus can monitor various resources, services and events efficiently. MCM constructs resources monitoring infrastructure for cluster resources management, cross domain parallel jobs, grid resourcescoallocation and metaschedule algorithm. Based on MCM and Platform Computing Corporation’s production EGO, we implemented an efficient comprehensive cluster monitoring system.

The strategy for oilwell site preliminary survey with one rover Global Positioning System (GPS) is proposed by means of orientation technology of global positioning system and data communication technology. The oilwell site preliminary survey and management subsystem was constructed so as to solve the inconvenience caused by using the third party software provided with the functions of GPS data acquisition and processing. The experimentalresults demonstrate that when the strategy is put into practice, the subsystem can not only obtain position, velocity and time data from GPS constantly, but also solve the problem above mentioned and improve the flexibility and agility of oilwell site survey. The difference between the surveyed site and the true site is less than 5 meters. The feasible technology support will be provided for oilwell site survey anddeployment.

We presented a three dimensional reconstruction method based on image sequence of multiple images. Under the condition of the known camera parameters, we used the KarhunenLoeve Transform algorithm tracking feature to reconstruct three dimensional model based on the algorithm of reconstruction for two images, and also used bundle adjustment to optimize the result. The experiment shows an encouraging resultand the system is convenient, lowcost and easy to use.

Based on the multilevel threshold de-noising method foundation, mean value approximation (MVA) was used to pretreat the noising image. The pretreatment of the noising image was first carried out so as to reducethe variance of the white noise and then the multilevel threshold value denoising method was used to reduce noising. This method is more advantageous to separate signal and noise. The result indicates that this method is an effective and feasible one to the image denoising so as to enhance the signaltonoise ratio.

A nonmonotonic and numerical fuzzy logic is proposed. The syntax and semantic of the logic are given, and then it is shown that the logic is both paraconsistent and nonmonotonic. The logic given in this paper can be used to deal with imprecise, inconsistent and incomplete knowledge in intelligent system.

A multistage Neural Fuzzy System (NFS) model based on syllogistic fuzzy reasoning is proposed in this paper. From the stipulated inputoutput data pairs, an appropriate syllogistic fuzzy rule set can be generated via structure learning (using Genetic Algorithm) and parameter learning (using Backpropagation Neural Network) proceduresproposed in this paper. In addition, by means of solving Benchmark problem and unmanned vehicl control problem, we discussed and analyzed the performance of the proposed model in terms of effectiveness and robustness as compared with singlestage NFS models.

In view of particle swarm optimization (PSO) algorithm is easy to trap into local minima in solving multimodal function, we incorporated new update velocities in to the PSO algorithm, and proposed an improved particle swarm optimization algorithm (IPSO). The proposed algorithm has not only maintained the simplification of  implementation of PSO algorithm, also made the convergence fast and computational precision high. Simulation results show that the IPSO can effectively enhance the searching efficiency and greatly improve the searching quality compaired with the CPSO, standard PSO and PSOC.

A one to many negotiation protocol based on bilateral negotiation is proposed in this paper. This protocol adopts emergent coordination method to coordinate multiple negotiation threads to resolve the existing problems in extant protocols, such as central node problem and synchronized negotiati on problems.

LDPE/EVA/CB conductive foam was made with low density polyethlene (LDPE) and ethylene-vinylacetate copolymer (EVA) as matrix, acetylene carbon black (CB) as conductive filler, azobisformamide (AC) as foamer and dicumyl peroxide (DCP) as crosslinker. The bubble structure and resistivity-temperature characteristic were observed. Influences of carbon black content, crosslinker and foamer on conductive properties of LDPE/EVA/CB foaming conductive composites were investigated. The obtained foam has a rather good bubble structure and a switching characteristic. Acetylene CB filled LDPE/EVA system exhibits positive temperature coefficient (PTC) effect during heating process. The proper filler contents of the crosslinker and foamer were confirmed to make the composite have not only good foam performance but also PTC characteristic.

Perovskite oxide SmCoO₃ was prepared by the high pressure and high temperature (HPHT) method. The structure and properties of the samples were investigated by XRD, Raman, electrical conductivity and thermal expansion measurement techniques. The results indicate that the raw materials Co₂O₃ and Sm₂O₃ can form SmCoO₃ under 2.75~4.20 GPa at about 1 060 ℃, but the reaction was not complete. The single phase SmCoO₃ was synthesized under the conditions of about 3.90 GPa and 1 061 ℃.The Raman spectra only shows the characteristic of orthogonal SmCoO₃. The single phase SmCoO₃ is an insulator under 327 ℃ and its electrical conductivity increases with temperature increasing, which shows an insulator-semiconductor-metal transition. The thermal expansion coefficient of the sample shows a linear change in a temperature range of 100~800 ℃, which is better than that of the sample prepared by solid-state reaction. 

Microwave plasma chemical vapor deposition (MWPCVD) technique, as an electrodeless discharge and clean method, was adopted to prepare optical-grade transparent diamond films on single-crystal silicon substrates. And in order to understand their optical properties in detail, Fourier transform infrared (FTIR) spectrophotometer and ultraviolet-visible (UV-vis) spectrophotometer were employed to analyze their optical transmittance in IR region and UV region, respectively.

A fast chopper was used to set up a simple mechanical Q\|switched CO2 laser with longitudinal DC discharge. The laser pulse with peak power 1~2 kW, repetition rate to 740 Hz, pulse width 200~300 ns, was realized. The dynamical process of Q\|switching for the simple mechanical Q\|switched CO2 laser was simulated by a six\|temperature model. The effects of the dynamical parameters such as the dissociation of CO2 molecules, the electron density in the cavity (the discharge current) on the output laser intensity were reported. Q\|switched output pulse shape, pulse peak power and pulse width were calculated. The theoretical analysis is well consistent with the experimental result. 

By high pressure and high temperature (HPHT) method, the study on introducing Si into diamond synthesis was carried out. Experimental results indicate that owing to the introduction of Si, the color of diamonds from Fe-Si-C system appears to be shallower than that from Fe-C system. And within the same synthetic time, the crystal size of diamonds from Fe-Si-C system is smaller than that from Fe-C system. From X-ray data, we can find that there are two kinds of new compounds, FeSi and Fe₃C, in the Fe-Si-C system.

Calculations have been made for the electronic structures of (10,0) single-walled carbon nanotube containing nitrogen impurity atoms by means of abinitiodensity functional theory. When carbon atom of carbonnanotube is substituted by nitrogen atom, the carbon nanotube will be turned into n-type semiconductor. However, when nitrogen atom is absorbed on the outer surface of the carbon nanotube, it will be transformed into p-type semiconductor. And a portion of electrons inp orbital at the carbon atom adjacent to nitrogen is excited into d orbital. 

Diamine monomers containing sulfone or ketone group were synthesized firstly, then polyarylene sulfide sulfone amide (PASSA) and polyarylene sulfide ketone amide (PASKA) with high molecular weight were synthesized by a low temperature polycondensation reaction in anhydrous N-methylpyrrolidone (NMP). The structures of the monomers and the polymers were identified by IRspectra and UV spectra. The maximum intrinsic viscosities of the PASSA and PASKA are 0.72 dL/g in NMP and 0.62 dL/g in H₂SO₄ respectively. The polymers possess excellentthermal properties with the glass transition temperatures (T_g) of[KG*2]279.9 ℃ and 188.7 ℃ for PASSA and PASKA respectively, the initial degradation temperatures (T_i) of PASSA and PASKA are 461.5 ℃ and 467.08 ℃ respectively which suggests that PASSA and PASKA are novel heatresistantmaterials. And the deliquescent experiments show that PASSA and PASKA are also corrosion resistance materials.

The loaded resin containing chelating group was prepared with chromotrope-2R as chelating agent,D₂₉₆ strongly basic anion exchange resin as carrier and the structure of the CT-2R loaded resin was proved by means of infrared (IR) spectra. The adsorption properties of loaded resin and optimum conditions for the separation and preconcentration of Au (Ⅲ) and Pd (Ⅱ) were studied. The results show that chlorocomplex anion of Au and Pd in pH=1.0 HCl solution can be adsorbed on CT2R loaded resin and separated from many other base metals. Au and Pd on the resin were eluted with 0.1 mol/L HCl40 g/L thiourea solution at a flow rate of 0.5 mL/min. The resin is retreated and reused easily. The standard samples determined by atomic absorption spectrometry, the relative standard deviations (n=6) of Au and Pd are 5.72% and 7.89%, respectively.

A fast method based on dynamic microwave-assisted extraction (DMAE) coupled on-line with highperformance liquid chromatography (HPLC) by means of a flow injection interface has been developed for the determination of chlorogenic acid in Flos Lonicerae japonicae. The extraction was performed in a recirculating system. When a number of extraction cycles were completed, the fractional extract (20 μL) was driven to the analytical column by mobile phase and was measured by a UV detector. The extraction conditions were examinedand optimized. The detection and quantification limits of chlorogenic acid obtained at optimized conditionsare 0.25 and 0.83 μg/mL, respectively. The intraday and inter day precisions (RSD) obtainedare 34% and 41%, respectively. The mean recovery of chlorogenic acid is 98.1%. Compared with ultrasonic extraction used in the Chinese pharmacopoeia, the proposed method reduces the amount of solvent, provides more rapid measurement and high extraction yield.

FTY-720, a new kind of immunosuppressant, 2-amino2-［2-(4-octylphenyl)ethyl-1,3-propanediol hydrochloride was synthesized via Friedelcrafts acylation, reduction, acylation, alkylation and Et₃SiH/ TiCl₄ reduction as a pivotal step from the starting material benzene or Friedel crafts acylation, alkylation, Et₃SiH/ TiCl₄ reduction and reduction as a pivotal step from the starting material phenethyl alcohol respectively and the total yield of the FTY-720 was 17% or 21% respectively. The structure of the target molecule and the key intermediates were confirmed by IR, ¹H NMR, ¹³C NMR and MS in our experiments. The route is simpler, more efficientand convenient that may be applied to industrial production.

Gelatin microspheres were prepared by means of emulsion chemicalcrossline technique. In order to gain the best homogeneous size and p arameters, it was demonstrated that solidifying reagent adding time had effects on gelatin microspheres. The preparation conditions of the microspheres such as gelatin concentration, agitate rate, ratio of water to oil phase were studied and discussed. The surface morphology and the size of the microspheres were observed by SEM. The result shows that the microspheres prepared have relatively uniform diameter, the average diameter in this study is 13.72 μm, and the surface of the microspheres is smooth.

An Nterminal 32 amino acids radish PHGPx gene (Δ32RsPHGPx) was cloned into expression vector pGEX-6P-1 and transformed into E.coli strain BL21 (DE3). Δ32RsPHGPx for crystallization was prepared via Glutathione SepharoseTM affinity, cationexchange and gel filtration chromatographies. Theconcentration of it was 10 g/L and the purity was over 95%. Δ32RsPHGPx showed obvious PHGPx activity towardslipid hydroperoxides. In addition, a tertiary structure model of Δ32RsPHGPx displayed the thioredoxin fold.

To investigate the pharmacokinetic characteristics of Armillarisin A and its absolute bioavailability in rats, 1.44 mg and 0.9 mg of Armillarisin A were given via ig and iv to SD rats, respectively; the plasma concentration of Armillarisin A in rats was determined by LCMS/MS. After ig administration of Armillarisin A, the main pharmacokinetic parameters c_max, t_1/2, AUC_0~t were (58.33±23.41) μg/L, (155±043) h, (4187±754) h·(μg/L), respectively; After iv administration of Armillarisin A, the major pharmacokinetic parameters c_max, t_1/2, AUC_0~t were (825.25±92.13) μg/L, (0.75±0.35) h, (140.64±19.73) h·(μg/L), respectively. The absolute bioavailability was 18.61% after correction of dosage.

Simultaneous determination of malathion and atrazine by HPLC was carried out under the following laboratory conditions: the optimum detecting wave length 220 nm, and mobile phase V(CH3OH)∶V(H2O)=7∶3, which could reach better separating result. The linearity ranges for malathion and atrazine were 0.003 66~1.83 μmol/Land 0.121~60.3 μmol/L, respectively, the linearity correlation coefficients for malathion and atrazine were both more than 0.999 4. The detection limits for the two pesticides were 0.003 66 μmol/L and 0.121 μmol/L, respectively. The RSDs of the method for determining malathion and atrazine were lower than 10%.

Acetic acid is the most important component of furfural wastewater, which was degraded by UV/O₃ method. Effects of pH value, light intensity and negative and positive ions on the reaction were investigated. The results show the optimal conditions of the photodegradation reaction of 500 mL of 8 mmol/L acetic acid were pH=2.2, the temperature was (35±2) ℃ and the supply of O₃ was 0.1 mg/L under 400 W ultraviolet radiation. Under those conditions, the disposal rates of acetic acid and TOC reached 86% and 74% within 300 min. The degradation course obeys the zero order kinetic equation.