Abstract:

Abstract: According to the actual demands of animal visual cognition research，an automatic training and evaluating system wasdeveloped for animal visual cognition by the analysis of animals’behavior characteristics．The system consistedof the monitoring subsystem and the control subsystem．The monitoringsubsystem wasdesigned to setthe experimentalparameters，controlthevisual stimuli，store and analyze the real-timeexperimental data．Thecontrol subsystemwasconstructedto obtain animal experimental data viacapacitive touch screen and infraredsensor，and give a food reward to animals through an electromagnetic valve or a punishment with sound and light stimulations．The system wasexamined with LE rats’experiments．The results showed that the system could supplya great convenience for training of animals’cognitive behaviorand finish the evaluation of their cognitive abilityautomatically basedon specified visual tasks．Italso hasmany advanta— ges，such as reliable communication，high control accuracy，convenient operation and good generality．

Abstract: Due to the environmental change of the noise，different weather conditions andillumination，which influence the results of movingobject detection，thispaperproposed an adaptive double thresholds motionobiect mask algorithm．Toimprove the rate of motive vehicle recognition，this novel method first used multiple’ frame average algorithm to initialize the background，and adopted functional chain neural network method to uDdate thetwoof high andlow thresholds dynamically，which can adjust to changeable illumination automatic‘ 1y．According to the motion mask algorithm，the region of the foreground and background wasidentified and the currentbackgroundwasupdated．Then the region of the foreground object could be attained by dynamic double thresholds background difference method．Combined with the mathematical morphology method，much shadowwasdeleted and the foregroundobject wasrecognized correctly．The experimental results demonstrated that this detectingalgorithmwasmore accurate and robust．

Abstract: This paper considers interleaved muhchannel measurements as arise，for example，in time-inter— leaved analog-to-digital converters and in distributed sensornetworks．This system takesthe form of either uni— form or recurrent Nonuniform sampling，depending on the relative timing between the channels．Uniform quantization in each channelresults in all effectiveoverall signal·-to-·quantization—-error in thereconstructed out·putwhich is dependenton the quantizer step size in each channel，the relative timing between the channels andthe oversampling ratio．It is shown that in the multi-channel sampling system when the quantization step size is notrestricted to be the samein each channeland the channel timing is not constrainedto correspond to uniform sampling，it often reducesthe SQNR relative to uniformcase．

Abstract: Due to the environmental change of the noise，different weather conditions andillumination，which influence the results of movingobject detection，thispaperproposed an adaptive double thresholds motionobiect mask algorithm．Toimprove the rate of motive vehicle recognition，this novel method first used multiple’ frame average algorithm to initialize the background，and adopted functional chain neural network method to uDdate thetwoof high andlow thresholds dynamically，which can adjust to changeable illumination automatic‘ 1y．According to the motion mask algorithm，the region of the foreground and background wasidentified and the currentbackgroundwasupdated．Then the region of the foreground object could be attained by dynamic double thresholds background difference method．Combined with the mathematical morphology method，much shadowwasdeleted and the foregroundobject wasrecognized correctly．The experimental results demonstrated that this detectingalgorithmwasmore accurate and robust．

Abstract: This paperpresents a self-adaptive differential evolution algorithm，the fast convergenceandrobust— ness of this algorithm can beachieved by the self-adaptiveadjustment of evolutionalparameters．Thisalgorithm is used to design a PID controller for permanent magnet synchronousmotor，whose PID parameters are optimized by the self-adaptive differential evolution algorithm．The experimental results show that dynamic and static characteristics of thePMSM speed control system，which is optimized byself-adaptive differential evolution algorithm，have been improved significantly．

Abstract: This paper proposed a lightweight ownership transfer protocol based on random permutation func— tions to protect the ownership transfer procedure in RFID system．The random permutation functions were structured onthe basisof linear feedback shift registerandphysical unclonablefunction．Ourprotocol analyzed its security byGNYlogic．The result showsit can resist replay attack，man-in-middleattackand desynchronization attack．Italso provides forward security，backwardsecurity and untraceability．Theprotocol wassimulated andimplemented in Linux．We obtained experiment data including computation time cost by tag．Compared with otherprotocols，the experiment data showsthat our protocol is suitable for low—cost tags because the computation time is shorter．

Abstract: The isolation of red pigment from Zizyphus jujubepeelwasinvestigated through static adsorption— desorption method using AB一8 type maeroporous resin．The results indicated that AB一8 type macroporous resin showed higheradsorption rate and desorption rate．Theoptimum processconditions for adsorption are as follows：adsorption mass concentration 0．8 Illrg／mL、static adsorption time 3．5 h、material liquid ratio 90：40、adsorption rate 65．6％．The process conditions for elution are as follows：gradient elution in turn with 10％．20％，⋯90％ethanol water、elution rate 98．2％．This method is easy to operate without any toxicity，smell and pollution and spend less eluent compared with other methods．It is applicable for the preliminary separa· tion of the red pigment from Zizyphus jujube peel．

Abstract: Anewtype ofhigh—strength binder for coal for gasification wasprepared using thermoplastic phenolic resin，sodium bentonite，sodiumcarboxymethylcellulose andcorn starch asrawmaterials．The results of the study show that the preferable component content of the binder was thermoplastic phenolic resin 1％．corn starch 7％，sodium carboxymethylcellulose 1％，sodium bentonite 91％．On this basis，the effects of the binderdosage and the molding conditions of briquette on the coldand hot strength of briquette were investiga— ted．When the binder dosage was4％，molding pressure 25 MPa，drying temperature 160℃，the cold and hot strength of briquette could reach823 N a piece and 319 N a piece，which could replace lump coal as in‘ dustrial gasification rawmaterial coal．

Abstract: In orderto separate 1，2一propyleneglycol and ethylene glycol，the methodof only vapor phase cir— culation wasused to measure vapor—liquid equilibrium values at 6．67 kPa．And the experimental data of the binary system measured in this work passed the thermodynamic consistency test according to Herington area method．The experimental data of the binary system were correlated by Wilson，NRTLandUNIQUAC activity coefficientmodels．And all the models showed rather smaller deviation from the experimental results，indica— ting that the experiment data are suitable for the further industry process design．

Abstract: hisstudy used the chloro-methylated polystyrene-divinylbenzenecross—linked resin(ehloromethylatedbead；PS)as the basic skeleton of carrier．Firstly，polyethylene glycol，alcohol amine，diethanolamine andtriethanolamine wereused as ligands in the modification．And then，magnesium chloridewasloadedto the modified ones．Finally，the structure of IRwere analysed separately．The results indicated that the coordina— tion modification of PS of the ligandswere all realized，and the modified PShada good ability of loading the obiect—magnesium chloride．Consideringthe quantity ofgrafting，the effect ofmodification ofPEG200 is better than PEG300 and 600 etc，the capacity of loading is 3．051 mmol·g～；as for the alcamines，the effect of modification of triethanolamine is better than ethanolamine and diethanolamine．butaftermodifying by dietha．nolamine，the PS has a better ability to load the object，and the capacity of loading is 4．195 mmol·g～．The catalysts prepared were used in one·step synthesis of salicylaldehydeexperiment．Afterreusing for5 times，the activity wasstill excellent．

Abstract: In this study，a newheavy mental capturing agent DTC-U containing dithiocarbamatewassysthesized，and thetreatment efficiency ofPb2+wastewaterwasresearched．The resultsshowedthat：forwastewater containing 10 mg／LPb2+．theresidual dosage ofPb2+wasbelow0．5 mg／Lby added26 mg／L DTC-U，pH3～10，using PAC as flocculant and slower stirring for8min．Theremoval rate ofPb“from wastewatercan be achieved over95％whichwasenough to meet the request of the GB25466--2010．For the CO—existence of Pb2+andCd2+in wastewater．Pb2+was preferentially reactioncompared to Cd2+．Andtheresidual dosage of Pb2+andCd2+canmeetthe requirements of the GB25466--2010．TheDTC．U is suitable foruse in wide pH．has the favorable effectand has a good application prospect．

Abstract: The synthesis of hexafluoropropylene oxide which uses HFP as raw materials and molecular oxygenas oxidant is studied in packed bed reactor. The selectivity of HFP0 in the mass fraction 10% Ag/y-Al,0, cat-alyst prepared by impregnation is 42% . We examined the effect of the 10% Ag/y-Al, 0, catalyst modified bythe first main group metal salts on the synthesis reaction , and both the conversion of HFP and HFPO selectivitywere improved ，and the reasons for catalyst deactivation was analyzed.

Abstract: ZnOwith flower·like microspheresstructures assembledby nanosheetswasprepared via the hydrothermal microemulsion route using CTAB／cyclohexane／n-hexanol／zinc acetate dehydrate as raw materials．The hierarchical ZnO microarchitecturewascharacterized by XRD，SEM and UV·vis．The results indicate that the product belongs to hexagonal ZnOwith wurtzite structure，and thediameter ofZnOmicrospheres is about5 Ixm．ZnO microspheres exhibit pore structures with high surface area of 16．5 m2·g～．The hierarchicalZnO microspheres exhibit higherphotocatalytic activity for decolorization ofRhodamineB underultraviolet irradiation than that ofcommercialZnOnanoparticles，which can be attributed to the larger surfaceareaand the spe— cial 3D structural feature of the nanosheets．

Abstract: ZnO with flower·like microspheresstructures assembledby nanosheetswasprepared via the hydrothermal microemulsion route using CTAB／cyclohexane／n-hexanol／zinc acetate dehydrate as raw materials．The hierarchical ZnO microarchitecturewascharacterized by XRD，SEM and UV·vis．The results indicate that the product belongs to hexagonal ZnOwith wurtzite structure，and thediameter ofZnOmicrospheres is about5 Ixm．ZnO microspheres exhibit pore structures with high surface area of 16．5 m2·g～．The hierarchicalZnO microspheres exhibit higherphotocatalytic activity for decolorization ofRhodamineB underultraviolet irradiation than that ofcommercialZnOnanoparticles，which can be attributed to the larger surfaceareaand the spe— cial 3D structural feature of the nanosheets．

Abstract: Taking the Baishuiyu bridge as the back ground，using the finite element software MIDAS／Civil to buih the space beam finite element modelof five span continuous rigid frame bridge，horizontaldisplacement of the finished bridge’s main girder is analyzed under differentjackingforce，then effect among the closure’s temperature．jacking forceand horizontal displacement is discussed．Through numerical calculation and con‘ trast。it drawsthe conclusion that the relationbetweenjackingforceand horizontal displacement are linearvar。iation．The effect of iacking force of the side middle span and middle span to pier top’s horizontal displace。ment is different．When iackingforce of sidemiddle span is increased，it is favorable to the side span’s main pier of the horizontal displacement and unfavorable to the middle span’s main pier of the horizontal displace。ment．When iackingforce of middle span is increased，it is favorable to all main pier of the horizontal dis。Dlacement．So to the five span continuous rigid frame bridge，it should preferentially adjust jacking force of main span．Finally．according to temperature of the fact site，to use relation between closure’s temperature andhorizontal displacement，jacking force is adjusted to optimize thejacking force．

Abstract: The Auparticles were synthesizedby chemical reductionmethod andcharacterized byXRD．SEM andBET．Catalyst specific surface areareached 32．12 m2／g．Thegas diffusion electrodes were prepared by screen-printing technology．Theelectrochemical sensorswereconstructedas athree—electrode cell system．The results show that thesensors have high sensitivity up to 1．2斗A(in 0．89 ms／m3HF)tohydrogen fluoride gas，and the response andrecovery time are45 S and 15 S，respectively．Moreover，the sensors have good consis— tency of productquality，reproducibility of signal and long—term stability．The amperometric sensors are suit— able to detect the low concentration in atmosphere．

Abstract: With regard to a curved continuous bridge with box girder ， two supporting systems were respectivelydesigned，namely ，torsion-resist supports at all supports and torsion-resist supports only at both end supports ,single supports at all middle span supports，and comparative analysis has been conducted on their mechanicalproperties from moment，shear forces，torque and support reaction forces. Bearing eccentricity has been takeninto consideration in this paper，in order to investigate the mechanical properties of curved girder bridge withsingle supports at all middle spans further. Calculation results show that if applicable bearing eccentricity is setup， the disadvantages of curved girder bridge with single supports at all middle spans could be overcome，andits mechanical properties can still meet the requirements of engineering application.

Abstract: In order to study the mechanical behavior of the reinforced concrete side retainer in the beam bridge，T·beam，three fabricated types of highway bridge，which are hollow—slab andbox—girder bridge，are taken as the object．Using combin40 elementofANSYSsoftwarewasemployed to simulate side retainer to analyze the dynamic behavior of the side retainer in the different peak acceleration of ground motion，and the maximum impact capacity of side retainerwasfixed by its ultimate capacity failure analysis．The results indi— cate that the concrete reinforced side retainer is only effective during its normalservice period．butwill break downwhen it is subject to 0．05 g peak acceleration of ground motion．

Abstract: Rsistivity measurement，resistance to chloride penetration and cube crushingstrength of mineral admixtureconcrete are tested to analyse the variation of resistivity andchloride diffusion coefficient with age and theregression relationship betweenresistivity and chloride diffusion coefficient．Testresults showthat con— crete resistivity increasedwith the increase ofconcrete age and chloride diffusioncoefficientdecreasedwith the increase of concrete age．The effect of double mixing mineral admixture is better than that of single mixing．Chloride diffusioncoefficient increasedwith the decrease of concrete resistivity and has agood inverse regression relationship with each other．

Abstract: The prestressedand reinforced concretecompoundedpipe pile(PRC)is anewtype ofprestressing pipe pile，formedby the symmetrical arrangement of prestressing steel bars and non-prestressed reinforcment，on the basisof pre—tensioned prestressed concrete pipe piles(PHC)andhigh strength prestressedconcrete tu· bular pile．Finally，a computational analysis of the stiffness of the prestressed and reinforced concrete conpounded pipe pile using finite elementsoftware are introduced，by comparing the before—cracking stiffness and after．cracking stiffness of the finite element calculated values，experimental values and calculated values according to the existing concrete specification formula，a theoretical formulais proposed to calculate the before。cracking and after cracking flexural rigidity．

Abstract: Taking the Baishuiyu bridge as the back ground，using the finite element software MIDAS／Civil to buih the space beam finite element modelof five span continuous rigid frame bridge，horizontaldisplacement of the finished bridge’s main girder is analyzed under differentjackingforce，then effect among the closure’s temperature．jacking forceand horizontal displacement is discussed．Through numerical calculation and con‘ trast。it drawsthe conclusion that the relationbetweenjackingforceand horizontal displacement are linearvar。iation．The effect of iacking force of the side middle span and middle span to pier top’s horizontal displace。ment is different．When iackingforce of sidemiddle span is increased，it is favorable to the side span’s main pier of the horizontal displacement and unfavorable to the middle span’s main pier of the horizontal displace。ment．When iackingforce of middle span is increased，it is favorable to all main pier of the horizontal dis。Dlacement．So to the five span continuous rigid frame bridge，it should preferentially adjust jacking force of main span．Finally．according to temperature of the fact site，to use relation between closure’s temperature andhorizontal displacement，jacking force is adjusted to optimize thejacking force．

Abstract: Using the coaxial series—parallel hybrid electric vehicle as the object and on the basis of the power train structure analysis，the operating modeand control strategy are introduced．The basic parameters of power components are calculated andthe power train simulation system is established based onthe secondarydevelopment ofAdvisor．Then the simulation of the vehicle dynamicperformance and fuel economy are completed underthe selected urban cycle condition．The resultanalysis ofSOCvalue change and power unit torque rela— tions verifies the feasibility of thepower train and theaccuracy ofthe simulation system，andprovides the tech· nical support for the coaxial series-parallelhybrid electric vehicledevelopment．

Abstract: n this paper，we studied a type of stochastic multi—facility location problem and deal with the an．predictablecapacity byusing the scenario planning．First，we presentted the optimization model of this prob．1em with capacity constraints，and designed a genetic algorithm to solving this problem．Concretely．wegave two differentmodelsbasedon the type of the facility capacity allocation，andsome analysis aboutthe objective function and constraint condition．Then，we proposed a genetic algorithm using symbolic coding．Symbolic coding methodmakes a smallerscale of themodel and reflects the problem’Scharacteristics．Last，weapplied the modeland the algorithm to reality case，and the results indicate that the scenario planning method，the modeland the algorithm are all efficient and effective．

Abstract: In this paper，a study on the damage identification analysis of steel gantry structures in large-scalesubstations is put out.The damage diagnosis of steel gantry structures with different damage degree and dffer-ent damage sites are discussed based on the method of element modal strain energy change rate. The resultsshow that，modal strain energy change rate is a sensitive indicator index and it can be used to identify thedamages for the steel substation gantry structure simply and effectively.

Abstract: A solar collectorsystem experimental platformwasbuiltand the experimental wasresearched to get the thermal characteristics of this collector underthe three air flow volumes of0．94，1．41，1．87 m3／h．The collector plate modelwasbuilt by theCFD software，and the simulationwasresearched to get the thermalperformance parameterswhenthe solar radiationwaswithin the range of300 W／m2 to 700 W／m2and the ambient temperature wasbetween6℃and 10 oC．The results demonstrated that the increase of air temperature were respectively 22．45，17．57，14．37 oC，andthe heat collector efficiencywasrespectively 38．56％，45．13％，49．06％underthevolume of0．94，1．41，1．87 m3／h．Thedifferent kindsofconditions’optimalvolumewas got accordingto the simulation values of corrsponding thermal performance parametres，which was to provide the reference data for the selection of operation volume in the solar collector’S practical engineering．

Abstract: A three—dimensional geometric model of single—U，double·U ground-tube heat exchangers and sur· rounding soil wasestablished in ground source heatPumpsystem．The effects ofdifferentborehole depth，flow velocity andthermal insulating layer on the heat exchanging quantity per well·-depth were researched by FLU·· ENT software．The temperature difference between the inlet and the outlet，theheat exchanging quantity per well．-depth and the thermal interference aboutsingle-U and double-U ground-tube heat exchangers were eom—· pared under the sameconditions．The resultsshow that the heat exchanging quantity perwell-depth ofdouble— Uground—tube heat exchangers increases 30％ormore，but their thethermal interference is more serious without thermal insulating layer．The influence of thermal interference can be reduced by the thermal insulating layer，which makesthe heat exchangingquantity per well—depth increase more than 15％，andcomprehensive performance of the double—U ground—tube wassuperior to single-U．The optimum length of the thermal insula— ring layer is 120 meters．

Abstract: Vertical unidirectional flowing clean room is simulated by using fluent software，the streamline distribution，undistributed degree of velocity and sectional average wind speed of clean room are obtained．The simulation results show that，in therange of simulation，with the ratio of blowingarea increases，the inlet vor· tex decreases，thestreamline parallel degree becomes good，undistributed degree of velocity decreases．When the ratio of blowing area is 60％and70％，the inlet vortex is obvious．Whenthe ratio of blowing area is 80％，the inlet vortex is small，the streamline parallel degree meets the requirements of unidirectional flow．Velocity undistributed degree ofX=0planeandY=0 plane is 0．180 3 and 0．1940．1ess than0．3．Theav— erage wind velocity ofX=0plane and Y=0 plane is 0．335 4 m／s and 0．335 5 m／s．in the range of0．2～0．5 m／s，meets the design requirements of unidirectional flowing clean room．

Abstract: In orderto grasp the distribution rule offlow dead zone in shell side of shutterbaffle heat exchanger，which is a newand high efficiency heat exchanger，the residence time distribution(RTD)datawas ob— tained and used to analysis by using CFD in this paper．The results showed that the size of flow dead zone in shell side of shutterbaffle heat exchangerwas reducedwith increase of Reynolds number．Thedistribution of flow dead zone wasinfluenced by assemble types of shutter baffles．When the shutter baffle symmetrical arrangement the size of flow dead zone is larger than that of CO—rotating at the same Reynolds number，and the size offlow deadzone ofshutterbaffle heat exchanger is less than that of baffle plate heat exchanger．When Re =5000、Re=10 000and Re=15 000，the dead zone in shell side ofshutter baffle heat exchanger with shutter baffle symmetricalarrangement are respectively 59．23％、49．08％、46．06％of that in baffle plate heat ex— changer，and the dead zone in shell side of shutter baffle heat exchanger with shutter baffle CO—rotating ar— rangement are respectively 29．94％、25．32％、19．80％of that in baffle plate heat exchanger．

Abstract: Using the coaxial series—parallel hybrid electric vehicle as the object and on the basis of the power train structure analysis，the operating modeand control strategy are introduced．The basic parameters of power components are calculated andthe power train simulation system is established based onthe secondarydevelopment ofAdvisor．Then the simulation of the vehicle dynamicperformance and fuel economy are completed underthe selected urban cycle condition．The resultanalysis ofSOCvalue change and power unit torque rela— tions verifies the feasibility of thepower train and theaccuracy ofthe simulation system，andprovides the tech· nical support for the coaxial series-parallelhybrid electric vehicledevelopment．

Abstract: Atthe design stage considering its NVHperformanceof thebody，comprehensiveuse of multi-body dynamicsandacoustic solid couplingFEMofthe carbody prediction simulation of interior noise．C level pavement file is establishedby Matilab／Simlink，Multi-body dynamics model is set up and carry onthe simulation byMSC．Adams／Car，Interior noise simulation predictions of a minibus’fluid-solid coupling model which caused by Pavementincentives with MSC．Nastran，through the analysis of the evaluation to the simulation resuhs reachedNVHperformance prediction at the design stage of body，provide a reference data for car body design through the evaluation analysis of simulation，and compared with real vehicle measurement result，the SPLdistribution trend of measurement point is consistent，shows the feasibility of this method in engineering practice．