It introduces the concept of error matrix and studies the optimization model for error-eliminating program—ming．The system resource constraint is expressed by error matrix equation，and the conditions and artificial con·straints are expressed by object sets in the optimization model．All of the error matrix equations are classfied into twogroups，which are type one：AX=B，A●X=B，AAX=B，AVX=B，AAX=B；and type two：XA=B，XQA=曰，X▲A=B，XVA=B，XAA=B．The solution method，the existence of solution．and the form of solution for error—eliminating programming，based on the first kind of type two equation XA=B．have been presented．Finally，anexample of solving the problem with error—eliminating programming is given．

Regarding the saddle-po int equ ilibrium for discrete t ime bilinear-quadratic controlin the f in ite t ime, the sadd le-po int equ ilibrium is converted into a non linear tw o po int boundary va lue by using the dynam ic prog ramm ing pr incipa.l Then by using a transfo rmation, the nonlinear tw o po int boundary value is transfo rmed in to a "linear" two point boundary va luew ith "separate" form. Finally, a new iterative a lgorithm is constructed to solve the problem, w hich provides a new approach to the problem w ith the differential gam es o f discrete-time b ilinear systems.

Abstract: Under singu lar va lue decomposition w ith the same b locks and addictive noise, w ith the singu lar decomposition toMoore-Penrose inverse is singular subspace. By b-i separat ing degree, the separating and connecting perturbation bounds o f lef-t right singular subspace are obtained.

It studies the admissibility of linear estimators of regression coeficients in linear models under balanced loss fonctions．and gives the necessary and suffieient conditions for a linear estimator that is admissible．

It discusses the existence problem with anti--periodic solutions for two·-dimension nonlinear equation in Hilbert space．Under certain conditions，the equation has been proved to have anti-poriodic solutions．  

The long afterglow luminescent materials Sr2一Mg Si2O7：Eu“，Dy¨( =1．4，1．2，1，0．8，0．6)were synthesized by high temperature solid-state reaction．According to the X—ray diffraction analysis，it was found that the phase of the materials was Sr2MgSi2O7 when the ≥ 1．Three phases have been found when the <1．When ≥1，with the decrease of ，the blHe shift of the emission peak appears through the ph0toluminescence．The depths of the traps were analyzed through the afterglow CHIVES and the thermolumineseence spectra．With the decrease of ，the decay time of the samples decreases，and the traps of the phosphors become shallow．

Abstract：A Sol-gel method was used to prepare Pb Sr1-TiO3 powder，in which the contents of Sr and Pb were different(=0．4，0．5，0．6)．Powders were annealed at 900 oC．Their crystallographic structures were characterized by X-ray diffraction．XRD patterns showed the diffraction peak was splited into two and the distance of the two peaks(101／1 10)gradually increased with increasing molar ratio of Pb／Sr．The lattice parameters were calculated
from the split peaks of(001／100)．Experimental resuhs show that lattice constant ratio c／a and the cell volume increase with increasing Pb content，indicating a phase transition from a cubic phase to tetragonal phase．

It studies the degradation of reactive black dye by using engineering photocatalytic reactors coated with nanoscale TiC2 under different experiment conditions to gain the optimal parameters for the real pr~ect．Results indicate that the combined mode of UV／Nicke1．Net／TiC，has the highest degradation efficiencv for reactive black dye，and that the percent age of decolorization may achieve 94．76 ％ in 240 min．With the increase of the initial concentration of the dye，the percent age of decolorization will decline obviously．When the initia1 concentration is 20 mg／L，decolorization percent is more than 98．35％ after 240 min reaction period． Better degradation effect could be got under the condition of pH value equal to 5．reaching 94．2％ ．The degradation process can also be controlled by adding H2 O2，and when the content of H2 02 is l g／L，decolorization percentage can reach up to 98． 6 ％ after 1 50
mins’treatment．

It studies the optimal proportion of biodiesel blended with diesel by an engine test．It used the uniform design method to design experimental programs，established the quadratic polynomial stepwise regression model of testing data，and with economic characteristics，dynamic characteristics and emission characteristics as indicators for the evaluation，found out the optimal proportion，based on the evaluations individually optimized and comprehensively optimized．The results show that CO，smoke and power reduce gradually，but fuel consumption and NO increases with increasing proportion of bio-diese1．And the optimal proportion of bio·diesel is 25％ ．

It studies the temperature rise process of Cu nanoparticles．The melting point of Cu nanoparticles is lower than that of bulk，and it decreases with the decreasing size of nanoparticles．The premehing phenomenon was observed in different—size nanoparticles．The mechanism is different from that of traditional antiwear additives．The resuh indicates that the mode of friction is changed or a thin film is formed．

It introduces the concepts and working principles of thermal diode，as well as therm ophysical properties which solar phase—change materials should have．Some experiments are also performed to study heat transfer performance of thermal diode and phase—change rules of energy storage materials．Experimental results show that ther．real diode has a good start—up performance and isotherm al heat transfer characteristics． When the working fluid filling rate in the heating section is about 85％ ．heat transfer eficiency of thermal diode and coeficient of heat transfer in the condenser section can be achieved to the best value．Meanwhile，there exists non-uniform Dhase transiti0n in the inner part of material，and the heat transfer coefi cient between the condenser section and the material is small．

The feather collection method was an~yzed，using illumination models to extract the distribution of gray，and to compensate for gray at different locations under the gray scale image．Theoretical analysis and practical capture images are in line to meet use requirements．

Independent Component Analysis is undertaken for palmprint recognition not only to get the image of the higher order statistics information，but also to make each component as independent as possible． However．it needs a large quantity of calculation，and the classification feature is not obvious． An improved method is developed，based on ICA．First of all，wavelet transformtion was conducted to reduce dimension，which can guarantee minimum loss of image inform ation features，and at the same time， reduce sharply the computional cost．Then ICA method was employed to get the independent basis vectors． Finally，Fisher Linear Discriminant(FLD)method was used for feature extraction in the subspace fermed by the independent basis vectors to make the image have better classification information．Experimental results show that the improved method not only improves recognition rates，but also reduces recognition time．

The performance of the segmentation algorithm for fingerprint images affects the performance of the whole fingerprint identification system．It presents a segmentation algorithm for fingerprint images，based on the traditional segmentation algorithms and several mixed—technology segmentation algorithms．This algorithm can accurately segment the fingerprint images into the background area and the foreground area，and then segment the foreground area into the clear—cut area and the blurred area，and finally segment the blurred area into the retrievable area and the irretrievable area．The result shows that this segmentation algorithm provides a good segmentation result，and that it is robust against noise．Therefore，it has much higher practical value．

To enhance the security of identity authentication system and solve the problem of key preservation，it provides an authentication scheme，based on fingerprint and cryptography，and describes the Theory of the Scheme in detail and the processing steps between the client and server in certification process．In addition，it designs the certificati0n Scheine in the modular method and describes the details in the realization of the certification Scheme．Finally it provide the experimental data and analyzes experimental results．

Sacrificial anode is a useful method of CO／TOsion prevention for the inner of electric water heaters，but this method has its weak point，which is diffcuh to check and find out if the anode has lost effectiveness．So to warn users and protect the inner when anode failed，an electronic appliance was designed for warning and control，based on 555 timer and comparator．The applicance can keep the water header safe．

The equipment serves as an experimental platform to simulate the actual machining environment．It introduces its mechanical structure design，motion control of the stepper motor，microcontroller and the computerg serial port communication，the sensor~analog-digital conversion，software features，interface design and prototype production．The results show that the test benchg overall performance in this experiment can meet the design requests，and
that the experimental effects are obvious．

Abstract：Based on the impact of infilled walls on the earthquake damage to RC flame structures with infilled seismic performance of RC frame structures，the reasons for walls are analyzed with W enchuan Earthquake as an example．Summing up a lot of research results ab。ut the influence。finfilled walls on the strength,stiffness and deformation 0f RC frame structures at home and abroad，it establishes a rational model for infilled walls for research
process，and discusses the importance of the accuracy for the research results．Relevant suggestions are put forward to provide references for future research．

With regard to the case of silt ground disposal project of Guangzhou Nansha Taishan petrifaction storage area，based on microstructure tests laboratory soil test and the in—situ tests including the load experiment，the dynamic penetration test and vane shear test，the micro-structural effect and mechanical properties of SDDCM ’Streatment of saturated soft clay are investigated from macro and micro levels．As a result，the evolution mechanism of the constru ction process is revealed，and the reinforcement effect is evaluated．The research results reveal that with the new construction technology of“static-dynamic combing，the tamping is light first and then becomes weightier and weightier with energy gradually added，fewer times and more cycles” with pre—compression by soil load and reticulation drain，the improvement effects of SDDCM on the large area of deep and thick silt foundation are remarkable，physical—mechanical properties are improved obviously，and physical—mechanical properties are better than expected．SDDCM has extensive prospects for engineering applications．

Rain-flow counting method is adopted to cycles from the fatigue stress spectra of a truss nodegain different stress amplitudes and their corresponding stress The W eibull probability distribution fitting is applied to the above resuhs．Based on Miner linear cumulative damage theory of fatigue，the datum of rain—flow counting results and Weibull probability distribution fitting results are used to estimate the fatigue life of the truss node．The experimental results show that the combination of the rain．flow counting method with the probability distribution fitting technique makes the estimation of the fatigue life more authentic．

GNetAdj is based on the principles of indirect adjustment，and it is designed by Visual C++6．0．It can realize the adjustment and estimate of precision for level network，triangulation network，trilateration network，triangulateration network and other conventional control networks．Some methods of calculating approximation coordinates for special control network are discussed，and some methods of fixing the weight of different observations are analyzed．Finally，the program is verified by a case，and the result SHOWS that it has good practical value．

With regard to all invitation for public transport of bidding project，Monte Carlo simulation is conducted to in a multi—competitor bid．Probability distributions of cost and quoted price for all competitors are used in the sireu|ation．The profit distribution，wining probability and the optimum bid ale obtained via the simulation software encoded by the writer to assist bid decision—making．

The contents of project advice book are analyzed and evaluated by using the theory of AHP．On the basis of building evaluation indexes for project advice book，the power factors of evaluating indexes are calculated in detail，and some basic controlling indexes of selecting providers are set up．All these research results can supply reliable and quantificational evaluation standards for project advice book and benefit project management．