[数值]3[FDTD][Taflove-2003]Finite-ElementTime-DomainAlgorithms for....

Finite-ElementTime-DomainAlgorithms for ModelingLinearDebyeandLorentzDielectric DispersionsatLowFrequencies <'PR;g^#  
NikolayS.Stoykov*, Member, IEEE, Todd A. Kuiken, Member, IEEE, Madeleine M. Lowery, Member, IEEE, !^c:'I>~  
and AllenTaflove, Fellow, IEEE qZT 4+&y  
Abstract—Wepresentwhatwebelievetobethefirstalgorithms (|yRo  
thatuseasimplescalar-potentialformulationtomodellinear b&\3ps  
DebyeandLorentzdielectricdispersionsatlowfrequenciesin *(?U  
thecontextoffinite-elementtime-domain(FETD)numerical &/b?I `  
solutionsofelectricpotential.Thenewalgorithms,whichpermit CL)1Q  
treatmentofmultiple-poledielectricrelaxations,arebasedonthe 71oFm1m{  
auxiliarydifferentialequationmethodandareunconditionally ek<PISlci  
stable.Wevalidatethealgorithmsbycomparisonwiththeresults w.4u=e >Z4  
ofapreviouslyreportedmethodbasedontheFouriertransform. :BewH?Ku  
Thenewalgorithmsshouldbeusefulincalculatingthetransient V_)5Af3wY  
responseofbiologicalmaterialssubjecttoimpulsiveexcitation. kx"hWG4  
PotentialapplicationsincludeFETDmodelingofelectromyog- +-Z"H)  
raphy,functionalelectricalstimulation,defibrillation,andeffects
GM)\)\kNF  
oflightningandimpulsiveelectricshock. F/Rng'l  
IndexTerms—Finiteelementmethods,transientanalysis. D8r>a"gx  
I.INTRODUCTION DFt=%aV[  
HEelectricalpropertiesofdielectricmaterialsinevitably v#Cz&j  
varywithfrequency.Thisphenomenonistermeddielec- c!'A)JD@  
T M/::`yJQu  
tricdispersion.Inthetimedomain,dispersionleadstoacon- 5~_eN  
volutionalrelationbetweenanimpulsiveexcitationandtheef- eT7!a']x  
fectivedielectricimpulseresponse.Thedielectricdispersion K7t&fDI  
propertiesofbiologicaltissueshavebeenstudiedextensively.A %8}WX@SB  
numberoftheoreticalandempiricalmodelsareavailabletoex- g@S@d&
9  
plainthelargevolumeofmeasureddata[1]–[7].However,fewif Tf&f`/

 
anypublishedcomputationalsimulationsoftissueinteractions 7Y-FUZ.`>  
withlow-frequencyelectricfieldsaccountforanydielectricdis- 9f\aoVX  
persion.Thisholdsforavarietyofelectricalsignalswithinthe @A~B ,  
body,forexamplethoseduetomusclea .. dWzDSlP&  
n/9 LRZD|w  

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很不错的东西啊,顶一下.

UZ0O j5B.  
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AllenTaflove 牛人！

研究研究，值得学习Taflove啊

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太有用了，谢谢了

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