简介：Theintegralpartoftheoptimalvelocitycar-followingmodelsistheoptimalvelocityfunction(OVF),whichcanbederivedfrommeasuredvelocity-spacingdata.ThispaperdiscussesseveralcharacteristicsoftheOVFandpresentsregressionanalysisontwoclassicaldatasets,theLincolnandHollandtunnels,withdifferentpossibleOVFs.ThenumericalsimulationoftheformationoftrafficcongestionisconductedwiththreedifferentheuristicOVFs,demonstratingthatthesefunctionsgiveresultssimilartothoseofthefamousBandoOVF(Bandoetal.,1995).Alsoanalternativemethodispresentfordeterminingthesensitivityandmodelparametersbasedonasinglecardrivingtoafixedbarrier.

简介：Inordertoimprovethecarsalesservice4Sshopmanagementlevel,improvetheeconomicandsocialbenefitsofenterprises,incentivesareusedtoencouragetheirown4sshops.Inthispaper,throughouttherelatedanalysisofthequarterlyandannualawardsincentiveprograminlarge-scaledomesticautomobileenterprises,entropymethodwithMATLABsoftwareisappliedtoestablishthedimensionalfitfunction.Inthedataprocessing,themultiplelinearregressionfunctionintoLingosoftwareisemployedtogetthebestsolution;andClanguageisusedtorunthescreeningdataprogramthroughtheconsistencytestprograminthesensitivityanderroranalysis.Firstofall,considerthecompanytomaximizeprofitsandmaximizetheamountofcomplaintsinthestoretomaintainalowtarget;intermsofstaff,weshouldconsiderprovidingmoreincentivesforemployees;inthecustomer,theoverallsatisfaction,serviceAttitude,vehiclecleanlinessbasedshouldbeimproved.Andtwoprogramsforthemonthlyprofitandexcessprofitsofprogressiveincentivesshouldalsobeimproved.

简介：Weproposeanewcellularautomation(CA)trafficmodelthatisbasedonthecar-followingmodel.Aclassofdrivingstrategiesisusedinthecar-followingmodelinsteadoftheaccelerationintheNaSchtrafficmodel.Inourmodel,somerealisticdriverbehaviouranddetailedvehiclecharacteristicshavebeentakenintoaccount,suchasdistance-headwayandsafedistance,etc.Thesimulationresultsshowthatourmodelcanexhibitsometrafficflowstatesthathavebeenobservedintherealtraffic,andbothofthemaximumfluxandthecriticaldensityareveryclosetotherealmeasurement.Moreover,itiseasytoextendourmethodtomulti-lanetraffic.

简介：Theoilpanusedinearengineisoneoftheimportantstructurepartsinthecar,whichis,ingeneral,deepdrawnanddifficulttofrom.Thedeep-drawingprocessesoftheoilpanusedintheenginefor'SmallFlag'CaroflheFirstAutomobileManufactoryisanalyzedbyusingtheintegrativeCAD/CAE/CAMtechniqueofstampingdie,ineludingtheCADsoftwareCATIAandthesheet-metalstampingCAEsoftwareKMASdevelopedindependently.ThroughananalysisofdiestructureandformabilityusingtheKMASsoft-ware,theprimarytwi-offdeep-drawinghassuccessfullybeenchangedtotheone-offdeep-drawing,solvingthekeyteehniealdifficultiesforthemanufactory.

简介：鲍曼不动杆菌已成为最普遍的医院致病菌,且耐药情况严峻.LpxC作为新抗菌药物靶点被大量研究,但鲍曼不动杆菌LpxC晶体尚未解析得到,基于其结构的药物设计等工作无法开展.以铜绿假单胞菌LpxC晶体结构为模板,通过同源模建方法获得鲍曼不动杆菌LpxC结构模型.较好的Ramachandranplot分布和Profile-3D结果验证了模型的合理性.用分子动力学模拟优化鲍曼不动杆菌LpxC模型,修补部分不合理构象.后续分子对接结果显示S构型的苄氧乙酰基羟肟酸类抑制剂比R构型分子能更有效地结合在F191,H237和K238组成的较浅口袋中,这可能是S构型抑制剂活性更高的主要因素,模拟结果与实验数据吻合较好.