简介：Thecoherencecubetechnologyhasbecomeanimportanttechnologyfortheseismicattributeinterpretation,whichextractsthediscontinuitiesoftheeventsthroughanalyzingthesimilaritiesofadjacentseismicchannelstoidentifythefaultform.Thecoherencecubetechnologywhichusesconstanttimewindowlengthscannotbalancetheshallowlayersandthedeeplayers,becausethefrequencybandofseismicdatavarieswithtime.Whenanalyzingtheshallowlayers,thetimewindowwillcrossoveralotofevents,whichwillleadtoweakfocusingabilityandfailuretodelineatethedetails.Whilethetimewindowwillnotbelongenoughforanalyzingdeeplayers,whichwillleadtolowaccuracybecausethecoherencesnearthezeropointsoftheeventsareheavilyinfluencedbynoise.Forsolvingtheproblem,weshouldmakearesearchonthecoherencecubetechnologywithself-adaptivetimewindow.Thispaperdeterminesthesamplepoints’timewindowlengthsinrealtimebycomputingtheinstantaneousfrequencybandswithWaveletTransformation,whichgivesacoherencecomputingmethodwiththeself-adaptivetimewindowlengths.Theresultshowsthatthecoherencecubetechnologywithself-adaptivetimewindowbasedonWaveletTransformationimprovestheaccuracyoffaultidentification,andsupressesthenoiseeffectively.Themethodcombinestheadvantagesoflongtimewindowmethodandshorttimewindowmethod.

简介：Roadfrictioncoefficientreal-timeestimationmethodsisanimportantissueandprobleminautomotiveactivesafetycontrolsystemdevelopment.Firstafixedfeedbackgainslidingmodeobserverofroadadhesioncoefficientisdesignedthroughtheestablishmentoftire/roaddynamicfrictionmodelinthisarticle.Thesimulationresultsshowsthattheobservercanwellreal-timeidentifythecurrentroadadhesioncharacteristics.Andmoreimportantly,theobserveronlyneedwheelspeedsignalandthebrakingtorque(brakepressure)signal,sothesystemislowcost,anditsadaptabilityisgood.Thereisnodoubtthisestimationmethodhasagoodapplicationprospect.

简介：SystemoptimizationplaysacrucialroleindevelopingVRsystemafter3Dmodeling,affectingthesystem'sImmersionandInteractionperformanceenormously.Inthisarticle,severalkeytechniquesofoptimizingavirtualminingsystemwerediscussed:optimizing3DmodelstokeepthepolygonnumberinVRsystemwithintargethardware'sprocessingability;optimizingtexturedatabasetosavetexturememorywithperfectvisualeffect;optimizingdatabasehierarchystructuretoacceleratemodelretrieval;andoptimizingLODhierarchystructuretospeeduprendering~

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