digital electronics and logic design godse pdf
Tài liệu Module 2: Architecture and Structural Design Patterns pdf
... from Conceptual to Logical Design, ” focus on the first step in the transition from conceptual design to logical design, which is to identify the creational and structural design patterns that ... Architecture and Structural Design Patterns Lab 2: Architecture and Structural Design Patterns Objectives After completing this lab, you will be able to: ! Choose and apply structural design ... Architecture and Structural Design Patterns Module 2: Architecture and Structural Design Patterns 9 Structural RecordsetFields Field As has been discussed, structural design patterns...
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Tài liệu Introduction to AutoCAD 2009 2D and 3D Design- P1 pdf
... entering cui at the command line, but Please purchase PDF Split-Merge on www.verypdf.com to remove this watermark.Part 12D Design Please purchase PDF Split-Merge on www.verypdf.com to remove this ... Internet tools and Design 373 Chapter 20 Internet tools and Help 375Emailing drawings 376Creating a web page 377The eTransit tool 378Help 379Please purchase PDF Split-Merge on www.verypdf.com ... intentionally left blankPlease purchase PDF Split-Merge on www.verypdf.com to remove this watermark. Introduction to AutoCAD 2009 Please purchase PDF Split-Merge on www.verypdf.com to remove this watermark.ContentsviDynamic...
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Introduction to Digital Signal Processing and Filter Design
... sum of only theprevious values of the output and the weighted sum of the current and previousIntroduction to Digital Signal Processing and Filter Design, by B. A. ShenoiCopyright © 2006 John ... properties of complex exponential and sinusoidal discrete-time signals aredescribed. A brief history of analog and digital filter design is given. Then theadvantages of digital signal processing over ... provide a hands-on experience tothe students.Chapter 5 is concerned with the theory and design of finite impulse response(FIR) filters. Properties of FIR filters with linear phase, and design of...
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Introduction to Digital Signal Processing and Filter Design - Introduction
... Processing,Addison-Wesley, 1989.7. S. S. Soliman and M. D. Srinath, Continuous and Discrete Signals and Systems,Prentice-Hall, 1990.8. L. R. Rabiner and B. Gold, Theory and Application of Digital Signal Processing,Prentice-Hall, ... signal, and a discrete-time signal. We dis-cussed the basic procedure followed to sample and quantize an analog signalREFERENCES316. R. D. Strum and D. E. Kirk, Discrete Systems and Digital ... SIGNALS3 and tracking of targets, missile guidance, secure communications, jamming and countermeasures, remote control of surveillance aircraft, and electronic warfare.7. Aerospace and Automotive Electronics. ...
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Tài liệu Electronics and Circuit Analysis Using MATLAB P12 pdf
... P.E., and Strader, N.R., VLSI Design Techniques for Analog and Digital Circuits, McGraw Hill Publishing Co., 1990. 2. Sedra, A.S. and Smith, K.C., Microelectronics Circuits, 4th ... CRC Press LLC and IIICFFR=−α (12.3) II IEFRR=− +α (12.4) and ()()IIIBFFRR=− +−11αα (12.5) where IES and ICS are the base-emitter and base-collector ... for the simple current mirror and Wilson current source. Figure 12.12 Percentage Error between Reference and Output Currents for Simple Current Mirror and Wilson Current Source ...
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Tài liệu Electronics and Circuit Analysis Using MATLAB P7 pdf
... Figure 7.1 General Two-Port Network I1 and V1 are input current and voltage, respectively. Also, I2 and V2 are output current and voltage, respectively. It is assumed that the ... V1 and I1 in terms of the secondary (receiving end) variables V2 and -I2. The negative of I2 is used to allow the current to enter the load at the receiving end. Examples 7.5 and ... VaVaI1 11 2 12 2=− (7.35) IaVaI1 21 2 22 2=− (7.36) where V2 and I2are independent variables and V1 and I1 are dependent variables. In matrix form, the above two equations...
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Tài liệu Clutches and brakes design and selection P4 pdf
... Inc.4LinearlyActingExternalandInternalDrumBrakesLinearlyactingdrumbrakesarethosefittedwithshoeswhich,whenacti-vated,approachthedrumbymovingparalleltoaradiusthroughthecen-teroftheshoe.TypicallinearlyactingdrumbrakesareillustratedinFigures1–3.Analysisoflinearlyactingbrakesincludesthoseinwhichthecentrallypivotedshoesareattachedtopivotedlevers,asinFigure1.Includingbrakesofthisdesignwithinthecategoryoflinearlyactingbrakesisjustifiediftheyaredesignedsothattheappliedforcesontheshoesandliningsactalongtheradiioftheshaftsthattheygripwhenthebrakesareapplied.Brakesofthistypemayacteitheruponbrakedrumsordirectlyuponrotatingshaftsandaresuitableforuseinheavy-dutyapplications,suchasfoundinminingandconstructionequipmentandinmaterials-handlingmachinery.Internallinearlyactingdrumbrakes,suchasusedontrucksinEurope,maybedesignedasinFigure2.Eitherpneumaticorhydrauliccylindersorcams ... Inc.Letusdefinetheefficiencyofabrakeastheratioofthetorqueprovidedbythebraketothetorquethatcouldbehadbyapplyingtheforcedirectlytothedrum,orshaft.Accordingtothisdefinition,theefficiencybecomesTFsr¼Apmaxr2wðsinu2Àsinu1Þð1=2Þpmaxr2wðf0þsinf0Þ¼2Asinu2Àsinu1f0þsinf0ð1-10ÞUponsubstitutingforu1andu2inequation(1-8)andrecallingequations(1-6) and( 1-7)wefindthatTFsr¼4Asinðf0=2Þf0þsinf0¼ARrð1-11Þwheretheright-handsidehasalreadybeenplottedinFigure5.Fromthatfigurewefindthatalthoughmaximumefficiencymaybeachievedonlyifeachshoeandliningextendoverhalfofthedrum,orshaft,relativelylittleefficiencyislostiftheliningextendsoveronly160jinsteadof180j.This,togetherwiththenearimpossibilityofmaintaininggoodcontactbetweentheliningandthedrumneartheendsofashoesubtending180jatthecenterofthedrum,accountsfortheangulardimensionsofthebrakeliningsshowninFigure1.Finally,itfollowsfromequation(1-11)thatiftheshoeissymmetricallypivotedandifequation(1-7)holds,theappliedtorqueisgivenbyT¼ARFsð1-12ÞII.BRAKINGTORQUEANDMOMENTSFORSYMMETRICALLYSUPPORTEDINTERNALSHOESPressurepandbrakingtorqueareagaingivenbyequations(1-2 )and( 1-4),respectively,foraninternalshoemovedagainstarotatingdrumalongalineparalleltoitsaxisofsymmetry,lineOB,inFigure6.Inthefollowinganalysisit ... Inc.Letusdefinetheefficiencyofabrakeastheratioofthetorqueprovidedbythebraketothetorquethatcouldbehadbyapplyingtheforcedirectlytothedrum,orshaft.Accordingtothisdefinition,theefficiencybecomesTFsr¼Apmaxr2wðsinu2Àsinu1Þð1=2Þpmaxr2wðf0þsinf0Þ¼2Asinu2Àsinu1f0þsinf0ð1-10ÞUponsubstitutingforu1andu2inequation(1-8)andrecallingequations(1-6) and( 1-7)wefindthatTFsr¼4Asinðf0=2Þf0þsinf0¼ARrð1-11Þwheretheright-handsidehasalreadybeenplottedinFigure5.Fromthatfigurewefindthatalthoughmaximumefficiencymaybeachievedonlyifeachshoeandliningextendoverhalfofthedrum,orshaft,relativelylittleefficiencyislostiftheliningextendsoveronly160jinsteadof180j.This,togetherwiththenearimpossibilityofmaintaininggoodcontactbetweentheliningandthedrumneartheendsofashoesubtending180jatthecenterofthedrum,accountsfortheangulardimensionsofthebrakeliningsshowninFigure1.Finally,itfollowsfromequation(1-11)thatiftheshoeissymmetricallypivotedandifequation(1-7)holds,theappliedtorqueisgivenbyT¼ARFsð1-12ÞII.BRAKINGTORQUEANDMOMENTSFORSYMMETRICALLYSUPPORTEDINTERNALSHOESPressurepandbrakingtorqueareagaingivenbyequations(1-2 )and( 1-4),respectively,foraninternalshoemovedagainstarotatingdrumalongalineparalleltoitsaxisofsymmetry,lineOB,inFigure6.Inthefollowinganalysisit...
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Tài liệu Clutches and brakes design and selection P7 pdf
... Inc.OMandtheIM.ThebrakeconfigurationdiffersfromtheclutchonlyinthattheIMisrigidlyattachedtothebrakeframe.AnelectromagneticcoiloutsidetheOMandconcentricwithitisusedtoactivatethebrakeorclutch.WhenthecoilinenergizedbypassingcurrentthroughitamagneticfieldisestablishedwhichcausestheparticlestobridgethegapbetweentheIMandtheOMandformlinksbetweenthetwo,asrepresentedinFigure6(b).Theselinksarealongthemagneticlinesofforce,whicharemadenearlyperpendiculartotheOMbytheconfigurationoftheOMandthecoilhousing,asshowninFigures 6and7 .BoththeshearandtensilestressesintheselinksresistrelativemotionbetweentheIMandtheOMandsotransmittorqueforthebrake/clutch.TheseshearandtensilestressesdevelopedaredependentonthecoilcurrentFIGURE4Hysteresisbrakewitha8-lb-ftcapacity.(CourtesyofMagneticPowerSystems, ... They are often designed in the laboratory by acombination of theory and trial and error because our present theory is notadequate to handle small geometric effects on the electric and magnetic ... (coulombs/meter3) and constants qo and Aodenote the electric and magnetic permeabilities of free space, respectively. Inthe MKS system, the units of qoare farads/meter and the units of Aoarehenries/meter.Chapter...
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Tài liệu Clutches and brakes design and selection P10 pdf
... Nd1ld1ln1tan2f and Nn2¼Ndrd2rn2¼ Ndld 2ln2tan2fð3-1Þwhere rd1 and rnlare the radii of the driver and driven cones, respectively, atpoint 1, rd 2 and rn2are driver and driven ... Inc.setofunitstobeusedforeachratio,andtheresultingratiosareindependentoftheunitsused.Relativelybroadcurvesareshowninthefollowingcomputer-generatedgraphsforeasyreadingtoshowcharacteristicbehaviorandtoprovidecontrastagainstthegridlines.Associatedroutines,suchasMathcadTrace,appeartoreadthemfromtheoriginatingdata,therebyeliminatingtheread-ingerrorsassociatedwithtracewidths.I.BELTDRIVESEquipmentusingnonmetallicbeltdrivesmayincludetheclutchcapabilitybymountingthemotor(becauseitisusuallysmallerthanthedrivenmachine)eitheruponahingedbaseoruponaslidingbasefittedwithaleveroralinkagethatpermitsthemotortobemovedtoandfromthedrivenmachineinordertoapplyandrelievethebelttensionandtherebygiveclutching(applyingbelttension)anddeclutching(relievingbelttension)capability.Thesedesignseliminatetheneedforamechanicalclutch.Theirsim-plicityisachieved,however,attheriskofintroducingthepossibilitythatfrictionalheatingofthebeltduringidling,whenthebelt(orbelts)mayrestonthemotor’srotatingsheave(pulley).Thatmaygenerateenoughheattocausebeltingmaterialstoslowlyshrink.Thisreductioninthecenterdistancebetweenthedrivinganddrivenpulleys,orsheaves,maybegreatenoughtocauseanunintendedre-engagementofthemotorandthedrivenmachine.Itmayalsoinhibittheirdisengagement.Consequently,somebeltmanufacturersproducebeltsthatresistshrinkageduetoheatingforuseintheseclutchinganddeclutchingapplications.Torquecapabilityforthesedrivesisaseparatecalculationtobeperformedaccordingtotheproceduresgivenbythebeltmanufacturers.Therefore,itwillnotbeconsideredinthefollowingdiscussion.A.HingedBaseAtfirstglanceitmayappearthatmovingamotorbymountingiteitheronahingedbaseoronaslidingbaseissosimplethatnoanalysisisnecessary.Ananalysis,however,doesbringforthseveralconsiderationsthatmaybemissedinselectingthedimensionsofthebaseplate,inlocatingthepositionofthebaseplatehinge,orindesigningthelinkagefortheslidingbaseplate.Twosimilar,butdistinct,mountingdesignsforhingedbaseswillbeconsidered.Intheseconfigurationsitistheweightofthemotoralonethatprovidesthebelttension.ThetensionvectorshowninFigure1(a )and( b)acting ... Inc.maximuminFigure16,setg=13.52j,asreadusingtheMathcadTracefeature.Evaluationofequation(1-13)forn=0.2,g=180,U=0.3,a=14j,andh=20foru=13.52jandforu=20jgivesadetentforceof4.544lb,whichiswithintheacceptablerange.Substitutionofg=180andq=1/32in.intoa=gq=180/32=5.625in.enablesdeterminationofrfromr=Ua=0.(5.625)=1.688in.Withlengthlgivenbyl=r/n=1.688/0.2=8.44in.,itfollowsthattheclearancegivenbylÀr=8.440À1.688=6.752in.exceedsthatspecified.Thisclearancerequirementmaybesatisfiedbyincreasingthemagni-tudeofnandreducingthemagnitudeofg.Thus,ifn=0.28andg=150,thedetentforcebecomes4.702lb,aisreducedto4.688in.,andrbecomes1.406in.Thesevaluesgivel=5.021in.,sotheclearanceis5.021À1.406=3.615in.,whichiswithinthedesiredrange.VI.EXAMPLE3:CONEDRIVESelectaconedriveforacombinationgolfcardandaproposedcongestedareacommutercartforuseincommunitiesthatacceptthem.Analysisoftorquetransmissiononthebasisofthedynamiccoefficientsoffrictionforacceptableliningsindicatesthata2.00-in.overlapwouldbesufficient.Forcomparison,consideronedesignwiththedriverconehavinganapexhalf-angleof40janddrivenconeshavingapexhalf-anglesof50jandaseconddesigninwhichboththedriveranddrivenconeshaveapexhalf-anglesof45j.Inbothcasesinitiallyselectaconegeneratorlengthof6.00in.toallowtheoverlaptobegreaterthan2.00in.intheeventthattheprototypeshouldrequiremodification.Beginwiththe40j,50jcombinationandturntoFigure11toselectthedimensionsoftheconesbyenteringthecurveatz=6andreadinguptothe40jline.Theprincipalradiusofcurvatureatthatpointis5.0346.Sincezismeasuredininches,theprincipalradiusofcurvatureis5.0346in.ReadingtotheleftatthisvalueofUyieldsthatatz=4.25in.,theprincipalradiusofcurvatureofthe50jhalf-angleconeis5.0650in.Aplotofthex-dimensionforeachcone,showninFigure17(a),confirmsthatthetwoconesshouldrollwithout...
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Tài liệu overview of data modeling and database design pdf
... reduce the time required for SQL command parsing.DYou should develop your own naming conventions and standards.Overview of Data Modeling and Database Design 8Ć35Designing the DatabasecontinuedMap ... in thestrategy and analysis phase into a graphical representation of business informationneeds and rules. Confirm and refine the model with the analysts and experts. Design D Design the database. ... birthweightspeciesOneĆtoĆOne Mandatory RelationshipsPlace the unique foreign key in the table at the mandatory end and label it NN toenforce the mandatory requirement and U to enforce the one-to-one...
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Tài liệu mpls vpn configuration and design guide pdf
... To provision and manage these overlay schemes is not supportable in a network that requires thousands or tens of thousands of VPNs, and hundreds, thousands, and tens of thousands of sites ... CE2 and CE3, and there is some VPN V containing CE1, CE2, and CE3, then PE1 uses BGP to distribute to PE2 and PE3 the routes, which it has learned from CE1. PE2 and PE3 ... support very granular traffic handling. Cisco is actively participating in the development of the DiffServ standard, and plans to support it in the future. 1.3.12.2 Design Approach For Implementing...
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Tài liệu HTML and Web Design Secrets P1 pdf
... streamlining the design process and management, and increasingawareness and promotion of the sites you design and develop. Your primary jobmight not even be that of a Web designer—perhaps you ... uses of dynamic content and rich me-dia, keeping content fresh, improving site ranking and promotions, and managingredesigns.Using This BookFocusing on theory, standards, and rigid practices ... forMacintosh and WindowsPopular with many Web design professionals, has very good standardssupport and integrates well withapplication technologies such asColdFusion, JSP, and so forth....
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Tài liệu John Wiley And Sons Electronics For Dummies Ebook P1 pdf
... Electricity On and Off 103Turning current on and off with switches 103Let a relay flip the switch 105Making Decisions with Logic Gates 106Using logic in electronics 107Common logic gates 107ixTable ... for quickly and easily.Part I: Getting Started in Electronics Start with Part I if you’re brand-spanking new to electronics. Because this bookis designed to get you on the road to electronics ... playing with wires and batteries, ithelps to understand what puts the elec in electricity and electronics. In this chapter, you discover all about how electrons make electricity and howharnessing...
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