简介：Real-timemodelingandsimulationofflightsystemarethekeypartsofsimulator.Afterdescribingthearchitectureofsimulatorforanewerfighter,authorpresentsthecompositionofflightsystemanditsmathematicmodels.Inthispaper,aircraftisregardedasanelasticflightbody.AndanewintegratedalgorithmwhichcanremedytheshortcomingofEulermethodandfour-elementmethodisusedtocalculatetheEuleriananglesofaircraft.Finally,thesoftwareimplementationoftheflightsystemisgiveninthepaper.

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简介：Thecostfunctionforeigenstructuresextractionisdiscussedindetailinthispaper,onecanobtainthelargesteigenvectorbyminimizingthecostfunction.Inordertoobtainothereigenvectors,acovariancematrixseriesisconstructed.Ifonecomparesthecostfunctionwiththeenergyfunctionofaneuralnetworks,theneuralnetworkscanbeeasilyintroducedtoextracttheeigenvectors.Theoreticalanalysisandcomputersimulationsshowthattheproposedmethodisreasonableandfeasible.

简介：Hydrogelcanswelltomanytimesofitsdryvolume,resultinginlargedeformationwhichisvitalforitsfunction.Theswellingprocessisregulatedbymanyphysicalandchemicalmechanisms,andcan,tosomeextent,befairlydescribedbytheporoelasticitytheory.Implementationoftheporoelasticitytheoryintheframeworkoffniteelementmethodwouldaidthedesignandoptimizationofhydrogel-basedsoftdevices.Choosingchemicalpotentialanddisplacementastwofeldvariables,wepresenttheimplementationofporoelasticitytailoredforhydrogelswellingdynamics,detailthenormalizationofphysicalparametersandthetreatmentofboundaryconditions.Severalexamplesarepresentedtodemonstratethefeasibilityandcorrectnessoftheproposedstrategy.

简介：Thispapershallshowaneconomicfeasibleapproachtoimplementgreenhousegas（GHG）reductionmeasuresintosteelcompanies.ThegoaltoimproveenergyconsumptionisdirectlylinkedtothereductionofGHGemissionsandthereforedirectlyincorrelationwiththeeconomicviability.Abaselinescenariooftheconsideredreferencesystemandoftherespectivereferenceyearhastobedefined,mappedandanalysed.Inasecondstepananalysisofthesameoperationusingavailableandprospectedbestavailabletechnology（BAT）processesiscarriedouttogenerateabasisforabenchmarksystem.TheidentifiedreductionpotentialsarereportedandtheGHGemissionreductionsareputintorelationtotheinvestmentcostofthenewprocesstechnologies/processadaptiontobeimplemented.ThiseconomicfeasibilitycalculationisnecessarytorealiseacostefficientGHGreductionroadmapimplementationintothecompany’sbusinessoperations.TheGHGreductionroadmapisdevelopedusingtheabatementcurveconcepttogetanindicationof'lowhangingfruits'andforestablishingasequenceforimplementingcarbonemissionreductionsmeasures.ThescopeofthatapproachcanbeextendedbyincludingfurtherimportantenvironmentalparameterslikeNOx,SO2,CO,dust,heavymetalemissionsinairaswellasproductionresidues.ThatgivesintheendabroaderpictureandmorestartingpointstoimprovetheoverallenvironmentalperformanceofsteelproducingcompaniesbeyondtheGHGemissionsandenergyconsumption.

简介：BasedonthestructureandbootloaderprincipleofDSPsystem,amethodfortheremoteupdation,debuggingandself-loadingofDSPsystemisdevelopedbyEthernet.HardwarecircuitandDM9000drivenprogramarepresentedandTCP/IPprotocolisembeddedintoDSP.Throughthere-mappingofexternalmemoryaddress,itiseasytoimplementtheloadofprogramsectionselectivelyandDSPself-boot.Theexperimentalresultsshowthattheproblemofhighcostinsystemmaintenancebyconventionalfielddebuggingbyemulatorandthelimitationinchip-levelbootareresolved.

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简介：OGCWebMapServiceisonekindofOGCPortrayalServicesbelongstoOGCWebServicemodelanditprovidesmulti-platforminteroperabilityofspatialdataset.ThispaperpresentsamethodforimplementingOGCWebMapServicebasedonWebServicetechniqueandintroducesthedetailedprocess.

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简介：AbstractObjective:No ideal training system exists for pancreaticoduodenectomy (PD). We developed an educational system that uses an objective structured assessment of technical skills.Methods:This retrospective observational study was conducted using the data of consecutive trainees and patients who underwent PD from 2007 to 2013 in Kansai Medical University Hospital. The total score on the task checklist (21 parameters) for measuring technical performance during PD by self assessment and instructor assessment was compared between junior (JN) and hepatobiliary pancreatic (HBP) trainees at a university hospital. Surgical outcomes of 303 PDs (2007-2013) were also compared among JN trainees, HBP trainees, and instructors, and the present position of the trainees was investigated. This study was approved by the institutional review board of Kansai Medical University on May 26, 2020.Results:The self-assessment score on the task checklist was significantly higher for the HBP trainees than for the JN trainees on all parts of PD (P <.001). The discrepancy between self-assessment and instructor assessment improved in 3 JN trainees after experience with the first 5 PDs. Although total score curves rose to the right in the JN group, scores in the HBP group were stable, at 70 or higher, which correlated with the instructor assessment. The 90-day and 30-day mortality rates were 1.6% and 0.3%, respectively. Mortality and morbidity after PD did not differ between the JN and HBP trainees or between the instructors and the trainees. Four of 10 trainees became board-certified expert surgeons of the Japanese Society of Hepatobiliary Pancreatic Surgery.Conclusion:These results indicated good construct validity of the task checklist system. This program was safely and effectively implemented in terms of surgical outcomes and final outcomes of trainees becoming board-certified expert surgeons.

简介：Thepresentingworkdealswithimplementationofsamplegraphicpatternsderivedfrompublishedscientific/technologicdocumentationfiguresonnumericsimulationofmultiphaseflowandFEManalysisofthinwalledmechanicalstructures.First,geometricplanepatternsinrectangular/circularformweredemonstratedincontrasttogradualchangestyleincolorandgraphicconfiguration.Next,selectedartistic/graphicsamplepatternswereimplementedinlogoconceptualdesignandvisualinnovationstorming.Thewayineditingtheaboveoriginalfiguresis2Dsymmetry,rectangulararraygeometrically,andconvertingthemininversecolorinsoftwarelikePS.Theobjectiveofthisworkistocultivate,exploreanddisciplinetrainees'visualabilityinartistic/aestheticappreciation,graphiccommunicationandindustrialdesignandapplication,thuslayingtiescloselyamongcomprehensiveuniversitystudentsfromdifferentmajorsonscience,engineering,artsandhumanity.

简介：ThispaperdevelopsaWebGIS-basedGPSvehiclemonitoringsystemwithtypicalthree-tierapplicationarchitectureofB/Spattern.Itprovidesordinaryregistereduserswithavalidandconvenientmeanstogetaccesstoreal-timeGPSlocationinformationofcertainmovingvehiclesatanyplace,andfurtheroffersapowerfultoolforsuperuserstomanageuserinformationandremotelymonitorthosevehiclesandprovidecorrespondingservicestimelyifnecessary.Thesystemarchitecture,functionmodules,keytechnologiesandapplicationinterfacesaregiven.Finally,thevalidityofoursystemisdemonstratedinpracticalcases.

简介：InthispaperthedesignandimplementationofMulti-Dimensional(MD)filter,particularly3-Dimensional(3D)filter,arepresented.Digital(discretedomain)filtersappliedtoimageandvideosignalprocessingusingthenovel3Dmultiratealgorithmsforefficientimplementationofmovingobjectextractionareengineeredwithanexample.Themultirate(decimationand/orinterpolation)signalprocessingalgorithmscanachievesignificantsavingsincomputationandmemoryusage.Theproposedalgorithmusesthemappingrelationsofz-transferfunctionsbetweennon-multirateandmultiratemathematicalexpressionsintermsoftime-varyingcoefficientinsteadoftraditionalpolyphasede-compositioncounterparts.ThemappingpropertiescanbereadilyusedtoefficientlyanalyzeandsynthesizeMDmultiratefilters.

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简介：Overthepastdecade,theChinesegovernmenthasdevelopedseveralplansregulationsandpolicymeasuresrelatedtothedevelopmentofrenewableenergytechnologiesandhasimplementedaseriesofpilotprojects.ChinesepolicymakershavespentseveralyearsstudyinghowrenewableenergypolicymodelsthathavebeenusedinternationallycouldbeimplementedinChina.Programsarecurrentlyunderwaytoimplementpilotrenewableportfoliostandards,ormandatorymarketshares(MMS)forrenewableenergy,inseveralprovinces.ThispaperexaminestheprimaryinstitutionsthatareinvolvedinpromotingrenewablepoliciesinChina,thestructureofthepoliciesthatcurrentlyarebeingdrafted,andthestatusofthecomplementary,national-levelrenewableenergylawbeingdraftedtoprovidealegalbasisforongoinglocalandnational-levelpolicies.ItthenexaminesthelegalrequirementsforpromotingrenewableenergylegislationundertheChineselaw-makingsystem.Finally,itprovidesrecommendationsfor

简介：在向前当模特儿的有弹性的波浪，吸收边界条件(ABC)被用来从模型截断边界减轻不希望得到的思考。完美地匹配的层(PML)证明了是最好的可得到的ABC。然而，传统的切开PML(SPML)ABC有一些严肃的劣势：例如，全球SPMLABC要求更多计算记忆，尽管实现是容易的。本地SPMLABC的实现也有一些困难，自从边和角落必须被考虑。因为卷绕旋转，传统的非切开的完美地匹配的层(NPML)ABC有复杂计算。在这篇论文，基于ABC与复杂转移频率的拉长函数(CFS)相结合的非切开的完美地匹配的层(NPML)，我们为与简单计算方程，小存储器要求，和容易的编程吸收边界条件的PML介绍一个新奇数字实现方法。

简介：DigitalnetworkedcommunicationsarethekeytoallInternet-of-Thingsapplications,especiallytosmartmeteringsystemsandthesmartgrid.Inordertoensureasafeoperationofsystemsandtheprivacyofusers,thetransportlayersecurity(TLS)protocol,amatureandwellstandardizedsolutionforsecurecommunications,maybeused.WeimplementedtheTLSprotocolinitslatestversioninawaysuitableforembeddedandresource-constrainedsystems.ThispaperoutlinesthechallengesandopportunitiesofdeployingTLSinsmartmeteringandsmartgridapplicationsandpresentsperformanceresultsofourTLSimplementation.Ouranalysisshowsthatgivenanappropriateimplementationandconfiguration,deployingTLSinconstrainedsmartmeteringsystemsispossiblewithacceptableoverhead.

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简介：Inthispaper,analgorithmforcomputingtheJanetbasesoflineardifferentialequationsisdescribed,whichisthedifferentialanalogueofthealgorithmJanetBasisimprovedbyGerdt.AnimplementationofthealgorithminMapleisgiven.Theimplementedalgorithmincludessomesubalgorithms:Janetdivision,Pommaretdivision,thejudgementofinvolutivedivisorandreducible,thejudgementofconventionaldivisorandreducible,involutivenormalformandconventionalnormalform,involutiveautoreductionandconventionalautoreduction,PJ-autoreductionandsoon.Asanapplication,theJanetBasesofthedeterminingsystemofclassicalLiesymmetriesofsomepartialdifferentialequationsareobtainedusingourpackage.