该文档详细讲解了计算电磁学的理论，并深入讲解了数值计算的多种方法。

调试PWM口，及V/F算法,参数辨识程序,磁场定向程序，从转速测量、参数辨识方面改善性能,转速PI调节,电流闭环使用PI函数,串口SCI控制，ADC、DQ、CLARKE、park变换。
DebugPWMport,andV/Falgorithm,parameteridentificationprogram,magneticfieldorientationprogram,improveperformancefromspeedmeasurementandparameteridentification,speedPIadjustment,currentclosedloopusingPIfunction,serialSCIcontrol,ADC,DQ,CLARKE,parktransform;

磁共振成像经典教材

很多偏理论的书籍最好是英文版的，中国的书都是抄来抄去的，要看就看国外的经典书，ElectromagneticWaveTheory是电磁学的理论经典教材，绝对值得看，本书详细介绍了基于麦克斯韦方程组的电磁波的完整理论，主要内容包括电磁波理论中的基本定律与方程，传输线理论，电磁波的反向、透射、折射、绕射和散射，波导和谐振腔，辐射和天线理论基础，以及在狭义相对论指导下的、从洛伦兹协变的角度理解的麦克斯韦电磁波理论。

ThisSoftwareprovidescommercialEDAsoftwaresolutionsforhigh-frequencyRF/MWelectromagneticanalysis.

磁性窗体：本代码中三个窗体一个主窗体两个辅窗体，通过相应代码实现Button控件关闭或者打开另外两个窗体并与主窗体近邻在一起。

fieldandwaveofelectromagneticsDavidKCh英文教材

In1971Dr.PaulC.Lauterburpioneeredspatialinformationencodingprinciplesthatmadeimageformationpossiblebyusingmagneticresonancesignals.NowLauterbur,"fatheroftheMRI",andDr.Zhi-PeiLianghaveco-authoredthefirstengineeringtextbookonmagneticresonanceimaging.Thislong-awaited,definitivetextwillhelpundergraduateandgraduatestudentsofbiomedicalengineering,biomedicalimagingscientists,radiologists,andelectricalengineersgainanin-depthunderstandingofMRIprinciples.Theauthorsuseasignalprocessingapproachtodescribethefundamentalsofmagneticresonanceimaging.Youwillfindaclearandrigorousdiscussionofthesecarefullyselectedessentialtopics:MathematicalfundamentalsSignalgenerationanddetectionprinciplesSignalcharacteristicsSignallocalizationprinciplesImagereconstructiontechniquesImagecontrastmechanismsImageresolution,noise,andartifactsFast-scanimagingConstrainedreconstructionCompletewithacomprehensivesetofexamplesandhomeworkproblems,PrinciplesofMagneticResonanceImagingisthemust-readbooktoimproveyourknowledgeofthisrevolutionarytechnique.

FDTD创始人taflove编写的经典教材。
2000年新版

相控阵天线讲的深入浅出，很有参考价值1Radiation11.1TheEarlyHistoryofElectricityandMagnetism11.2JamesClerkMaxwell,TheUnionofElectricityandMagnetism81.3RadiationbyAcceleratedCharge101.4ReactiveandRadiatingElectromagneticFields18References182Antennas192.1TheEarlyHistoryofAntennas192.1.1ResonantElectricCircuit202.1.2HeinrichHertz:TheFirstAntennaandRadioSystem232.1.3GuglielmoMarconi,theDawnofWirelessCommunication28viCONTENTS2.1.4AftertheFirstTransatlanticTransmission352.1.5Directivity402.2AntennaDevelopmentsDuringtheFirstWorldWar442.3AntennaDevelopmentsinBetweentheWars472.3.1Broadcasting472.3.2Microwaves482.4AntennaDevelopmentsDuringtheSecondWorldWar502.4.1Radar502.4.2OtherAntennaDevelopments602.5Post-WarAntennaDevelopments722.5.1FrequencyIndependentAntennas732.5.2HelicalAntenna742.5.3MicrostripPatchAntenna752.5.4PhasedArrayAntenna76References803AntennaParameters833.1RadiationPattern833.1.1FieldRegions843.1.2Three-DimensionalRadiationPattern873.1.3PlanarCuts913.1.4PowerPatternsandLogarithmicScale963.1.5DirectivityandGain983.1.6Reciprocity1013.1.7AntennaBeamwidth1023.2AntennaImpedanceandBandwidth1033.3Polarisation1073.3.1EllipticalPolarisation1073.3.2CircularPolarisation1093.3.3LinearPolarisation1103.3.4AxialRatio1103.4AntennaEffectiveAreaandVectorEffectiveLength1123.4.1EffectiveArea1123.4.2VectorEffectiveLength1143.5RadioEquation1153.6RadarEquation1173.6.1RadarCross-Section118References120CONTENTSvii4TheLinearBroadsideArrayAntenna1234.1ALinearArrayofNon-IsotropicPoint-SourceRadiators1234.2PlaneWaves1244.3ReceivedSignal1264.4ArrayFactor1314.5SideLobesandGratingLobes1314.5.1FirstSide-LobeLevel1314.5.2GratingLobes1324.6AmplitudeTaper133References1355Designofa4-Element,Linear,Broadside,Microstrip

在日常工作中，钉钉打卡成了我生活中不可或缺的一部分。然而，有时候这个看似简单的任务却给我带来了不少烦恼。 每天早晚，我总是得牢记打开钉钉应用，点击"工作台"，再找到"考勤打卡"进行签到。有时候因为工作忙碌，会忘记打卡，导致考勤异常，影响当月的工作评价。而且，由于我使用的是苹果手机，有时候系统更新后，钉钉的某些功能会出现异常，使得打卡变得更加麻烦。 另外，我的家人使用的是安卓手机，他们也经常抱怨钉钉打卡的繁琐。尤其是对于那些不太熟悉手机操作的长辈来说，每次打卡都是一次挑战。他们总是担心自己会操作失误，导致打卡失败。 为了解决这些烦恼，我开始思考是否可以通过编写一个全自动化脚本来实现钉钉打卡。经过一段时间的摸索和学习，我终于成功编写出了一个适用于苹果和安卓系统的钉钉打卡脚本。