Bilinear control strategy based on model bias separation is proposed，and it is applied to the yaw control of small-scale unmanned helicopters．The system model is divided into two parts：linear mode1 and uncertainty． The information of uncertainty is online obtained by the novel structure of model bias separation． The c0ntroller is the integration of a conventional linear controller with a linear compensator． The simulation resuits verify the effectiveness of the proposed bilinear control strategy．

With the dynamical interaction mechanism analyzed，the dynamical interaction equation of the vehicle／track system is established．A 1：20 small scale test model for the vehicle／track system is developed，and vibration test is conducted．The experimental results show that the dynamic performance index calculation values are generally close to the experimental values of the vehicle／track system．The resuhs reflect the vehicle／track system design and
calculation model，and validate the correctness of the calculation model and method．

Because of higher—order vibration modes， there are a lot of problems with in high．rise steel structuraI pushover analysis．Pushover analysis method is adopted with the aid of the SAP2000 software to analvze the multilayer and high—rise steel structures in small earthquakes and rare earthquakes． In the analysis various lateral loadin patterns are considered，and the corresponding results，including the nonlinear top．story displacement， story displacement and the distribution of story drifts， are obtained．In order to find a more reas0nable loading partem of high-rise steel structural performance，the seismic performance of structures is assessed．

The spatial model of element regular and symmetrical frame-shear wall structures is established，and the elasto-plastic seismic response of structures under uni-and bi-directional seismic excitation is analyzed．The analysis results，including maximum displacement of comer columns，maximum story drift，time—history curves of vertex aeceleration and time-history curves of vertex displacement，are compared．It is found that RC frame．wall structures
will suffer qreater damage under bi-directional seismic excitation than uni-directional seismic excitation．It is difficult to reveal the true seismic performance of structures under the actual earthquake only trough the uni-directiona dynamic analysis．

The physical-mechanical properties of soft soil are largely controlled by the internal microstructure，and the relationship between microstmcture parameters and the engineering properties is essential for microstructure quantitative analysis．Microstructure maps and parameters of soft soil in Nansha area are got by adopting scanning electron microscope(SEM)and image processing technique．Based on the statistic analysis of physical-mechanical indexes and microstructure parameters of soft soil in Na nsha region，the relationship between microstructure parameters and the engineering properties such as compression coeficient，compression modulus，cohesion，and internal friction angle is discussed，and a linear regression equation between microstructure parameters and macro-mechanical properties of soft clay is established．Some beneficial conclusions can act as important evidence for the reliability analysis of soft soil engineering and ground treatment design of soft soil，and guidance on the engineering construction of soft soil in Nansha area．

Two improved group search optimization algorithms(IGSO)，quick group search optimization(QGSO) and quick group search optimizer with passive congregation(QGSOPC)algorithm，are presented，and they are applied in shape optimization design of truss structures with discrete variables，including planar trusses and spatial trusses．Several numerical examples are given to test the IGSO algorithms．The optimization results are compared with those of the GSO algorithms and some algorithms in reference．The results show that the IGSO algorithmss have better perform ance in term s of convergence than the GSO algorithm and other algorithms，and can find the optimum solution with less iteration．Besides，compared with that of the GSO algorithm ，the IGSO algorithm program statement is much briefer，and easier to be programmed．It is desirable for IGSO to be used for structural optimal design problems．

Time-domain analysis method is one of the major methods of analyzing wind-induced structure vibration，but the method needs a series of samples of wind speed or wind pressure time-series．The simulation of time-series of wind speed using AR model and AIC rule was introduced and analyzed in detail．The method was implemented，andan example was given to verify it．The results show that the AR model is effective in simulating wind speed time-seties with time and space correlativity．

On the basis of the environmental characteristics of whole-closed air-conditioned coaches，the parameters of air temperature．relative humidity，air velocity，the volumetric concentration of CO，C02，formaldehyde and the fresh air auantity are selected as typical objective assessment indexes．The subjective investigation table is designed according t0 the general international rules．Subjective and objective assessments of the air quality in whole-closed air-conditioned e0aches．which run from Guangzhou to Shenzhen，were made．Based on th,grey characteristics of the air cruality in the coaches and the assessments，the relationship between the 0bjective index，es and the passengers subjective feeling was analyzed by using the grey system incidence theory．The result~’§h that the key objective indexes．which affect the air quality in coaches，are the quantity of fresh air，the concentration of CO2 and air ternperature

To develop novel antibacterial medicinals with high activity，antibacterial tests of 1 3 novel quinoline derivatives containing piperazine were conducted．The experimental results show that the compounds 3i and 3j possess good antibacterial activity against Escherichia coli，Bacillus subtilis and Staphylococcus aureus，and their MICs ale 0.07 mg／mL．

The effects of polarization potential on stress corrosion cracking(SCC)behavior of 5083 aluminum alloy are investigated by using slow strain rate tension(SSRT)test，SEM，and EDS．The experimental results reveal that under cathodic polarization the values of SCC susceptibility(Issrt)are minimum，the susceptibility is the weakest，and the fracture is a quasi-cleavage one without a few dipples while under anode polarization the values of Issrt are
maximum，the susceptibility is the s~ongest，lots of transverse cracks exist on the fracture surface，and the edges ale corroded．Moreover，the morphology is cleavage-shaped with lots of transgranular and intergranular cracks，belonging to the brittle fracture．SCC behavior of 5083 aluminum is of anodic dissolution．

The density functional theory(DH')was used to investigate the methanol on Nano-Pt surface．Some properities，including absorption energy，bond lengths of C-H and C-Pt，and density of state，were calculated．The resuets show that the Fermi level model moves to the right．After absorption，C—H weakens，its bond length is longer than before，the interaction between inner Pt atoms weakens too．At the same time a low barrier has to be overcome during the process of absorption．

It is not clear whether Nano-refrigerant can enhance boiling heat transfer in tubes．It investigates experimentally nano—refrigerant boiling heat transfer in a horizontal smooth tube(8．1 2 mmlD)，a tube uniformly heated by electric wire．The nano-refrigerant was HCFC141 b mixed with CNT and its volume concentration was 0．1 g／L．The experimental tests were carried out under the following conditions：(i)the refrigerant mass fluxes within the range 95．7～382．9 k (m ·s)；(ii)the heat fluxes within the range 5～20 kW／m ；(iii)the inlet vapor qualities from 0．1 to 0．8．The effects on measured heat transfer coeficient of mass flux，imposed heat flux and inlet vapor
quality were examined in detail．The experimental results show that the nano—refrigerant will enhance boiling heat transfer within small mass fluxes(95．7 kg／(m ·s))．However，its effect will be weakened or it will even reduce heat transfer coeficient as the mass fluxes and vapor qualities increase．

The principle of capillary flow porometry and its application in the pore size distribution of microporous separator are introduced．The polypropylene microporous separator was used，and the obtained pore size is near that obtained by scanning electrical microscopy．Compared with mercury intrusion porosimetry，capillary flow porometry has such advantages as no use of toxic liquid，low test pressure，and with only the throat diameter of through pore
tested，no damage to samples．Th erefore，it is more useful in the structure characterization of mieroporous separators．

The research on various types of solar water heaters as well as ways of building integrated solar water heater are summarized．The concept of thermodiode-employed solar water heaters，which integrate solar collection，energy storage and heat extraction，is proposed as wel1．Meanwile，some basic experimental researches on the heat transfer charecteristics of thermodiode are carried out，and some conclusions drawn．

The classification，principles and characteristics of the solar-assisted heat pump system are summarized，and some latest researches on collector evaporator and system capacity matching as well as some related properties of the direct-expansion solar-assisted heat pump system(DX-SAHP) are stated．Based upon these results，the main technical problems of the DX-SAHP are analyzed，and a series of thoughts and methods of improving the collection efficiency and optimizing system matching to improve the efficiency of this system are proposed．

It proposes the random simulation of the quasi-maximum likelihood estimator for the population-averaged treatment effect in the multi-dimensional structural regression model with one-dimensional covariate．The results show that the measurement errors affect the results of the simulation．

Regarding the non-system risks in the financial market，the extended CKLS model，which describes the short-term interest rate，was proposed，based on the traditional CKLS mode1．Then，the likelihood function in discrete form was obtained by using the Euler method to approximate the continuous process．Furtherm ore，the parameters of this model were estimated by Markov Chain Monte Carlo method．Finally，based on 0／N SHIBOR，an empirical study was presented．The results indicate jumps happen with a high probability in the research time and Markov  Chain Monte Carlo method is effective in parameter estimation．

The decentralized robust stabilization problem with a class of large-scale delay-dependent systems，is bounded persistent disturbance．By constructing Lyapunov functions，the linear matrix inequality(LMI)was employed．A few sufficient conditions for such large-scale systems were derived．A convex optimization of LMI constraints was formulated to design a decentralized state feedback control with smaller gain parameters，which enables the closed．1oop system to be asymptotically stable．Th e given example verifies the effectiveness of the method．

It presents the design of a intelligent vehicle display terminal system，and mainly introduces the working princip1e and system structure．The system is connected to the CAN-bus through a monitor node which contains the main controller STC89C52、CAN controller SJA1000 and transceiver PCA82C250．CAN messages are analysed，and sensor infonnation can be sent to S3C2440 through the serial port．Vehicle information can be virtually displayed through Windows CE．

An improved genetic algorithm(GA)-Simulated Annealing Genetic Algorithms-is proposed by combining the thoughts of Simulated Annealing Algorithms and Genetic Algorithms to solve the problem of the parameter optimization of PID controller．The new GA has been improvemed in algorithm by the use of adaptive crossover，mutation operators，and scaling or stretching．This algorithm avoids premature convergence，and has a quick convergence performance．Besides，it has both the capability of optimization in the global area as well as in the local area．The simulation results shows that the PID controller designed upon the improved GA is of good dynamic quality and stability．

Network terminal security assessment techniques and methods are introduced．Synthesis evaluation technique is used to evaluate network term inal security．The various kinds of factors that threaten network term inal security are analyzed．Based on the quantitative index system，the method of determ ining the value of the assets，security threat and vulnerability in the evaluation model is given．The process of network term inal security assessment is presented with examples．

Two short-distance route pIlotocols for ZigBee netw0rks are introduced and analysed in detail.Then the corresponding improved stmtegies are proposed．At last，the design of ZigBees n。des builf upon MC13213 chips，provided by Fiscale is Presented．

The reason why the codes of the original extension strategy generating system are disperse and tangled is that the system’S functions have not been separated from its cross-cutting concerns．This leads to this kind of extension softwares being more dificult in development，maintenance and upgrade．Based on self-help travel strategy gencrating system，AOSD is proposed to effectively separate the concerns so that it will make it easier for the extension software to understand，develop，maintain，and upgrade．It also helps to improve the system operation．
extension strategy eenerating system；aspect-oriented software development(AOSD)；aspect-oriented programming