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Silicon nitride
08/02/2022 1485
Silicon nitride

HistoryHenryEdinSt.ClairDevilleandFriedrichWeilerfirstreportedthesynthesisofsiliconnitridein1857.Inthesynthesismethodtheyreported,anothercruciblefilledwithsiliconwasburiedinacruciblefilledwithcarbonan...

Thin layer chromatography
07/02/2022 1248
Thin layer chromatography

IntroductionThinlayerchromatographyismostcommonlyusedasadsorptionchromatography.Commonlyusedadsorbentsaresilicagel,alumina,etc.Thin-layerchromatographyisthesameasotherchromatographicmethods.Inaddition...

Point-to-point transmission
07/02/2022 1383
Point-to-point transmission

IntroductionApurepeer-to-peernetworkhasnoconceptofclientorserver,onlyequalnodesatthesamelevel,andatthesametimeactsasaclientandserverforothernodesonthenetwork.Thisnetworkdesignmodelisdifferentfromthecl...

Bai Yu Jing
06/02/2022 1298
Bai Yu Jing

Introduction"HundredParables",theoldtitle"HundredParables",fourvolumes(orfivevolumes),isaworkthatusesallegoriestoapologize.ThisbookisacollectionofIndianSanghainthefifthcentury.Attheendofthebookistheau...

Anti-counterfeiting
06/02/2022 1353
Anti-counterfeiting

ConceptAnti-counterfeitingreferstoameasuretakenproactivelytopreventcounterfeitingasameanstoimitate,copy,orforgeandsellotherpeople’sproductswithoutthepermissionofthetrademarkowner.EvolutionTheanti-coun...

Home renovation
05/02/2022 1456
Home renovation

PreparationworkPaymentprocessThedecorationpaymentconsistsoffourparts:prepaymentforthestartofconstruction,mid-termprogresspayment,lateprogresspayment,andfinalpaymentaftercompletion.Thepaymentratioandti...

Guangdong Internet Association
05/02/2022 1233
Guangdong Internet Association

IntroductiontotheAssociationTheassociationupholdstheguidanceofindustryself-discipline,advocates"civilizedrunningtheInternet,civilizedInternet",promotesthehealthyandorderlydevelopmentoftheInternetinthe...

Standard cell library
04/02/2022 1400
Standard cell library

IntroductionStandardcelllibrary,includinglayoutlibrary,symbollibrary,circuitlogiclibrary,etc.Containscombinationallogic,sequentiallogic,functionalunitsandspecialtypesofunits.Itisafundamentalpartoftheb...

Learning behavior
04/02/2022 1191
Learning behavior

ClassificationofbehaviorsBeautifulbutterflieswilldancewhentheybreakoutoftheirpupae,ducklingswillgointothewatersoonaftertheyareborn,andmammalswillfindtheirmothers’warmembracewhentheyareborn.,Suckingmil...

digital signature
03/02/2022 1320
digital signature

PrincipleTheintegrityofadigitallysignedfileiseasytoverify(itdoesnotrequireaseamseal,aseamsignature,orahandwritingexpert),andthedigitalsignatureisnon-repudiation(Non-repudiation).Simplyput,theso-called...

Shen Kuo
03/02/2022 1180
Shen Kuo

ThelifeofthecharactersEarlyexperienceSongRenzongTiansheng9thyear(1031),ShenKuowasborninHangzhouQiantang(nowHangzhou,Zhejiang)Shenfamily,grandfatherShenZengqingusedtoserveasChengChenginDaliTemple.Hisfa...

Energy conservation law
02/02/2022 1438
Energy conservation law

EnergydefinitionEnergyisameasureoftheconversionofmaterialmotion,referredtoas"energy".Everythingintheworldisconstantlyinmotion.Amongalltheattributesofmatter,motionisthemostbasicattribute,andotherattrib...

John von Neumann
02/02/2022 1176
John von Neumann

SynonymNeumann(Americancomputerscientist)generallyreferstoJohnvonNeumannCharacterlifeJohnvonNeumann,afamousHungarian-AmericanmathematicianandcomputerScientists,physicistsandchemists.BorninaJewishfamil...

Thomas Kuhn
01/02/2022 1261
Thomas Kuhn

ThesynonymKuhn(Americanphilosopherofscience)generallyreferstoThomasKuhn(Americanhistorianofscience,philosopherofscience)BiographyThomasSammualKuhn)(1922-1996),wasbornonJuly18,1922inawealthyindustriali...

Compound eyes
01/02/2022 1053
Compound eyes

Compoundeyesinthebiologicalworld1.Compoundeyesarerelativetoasingleeye.Theyarethemainvisualorgansofinsectsandusuallyoccupyaprominentpositionontheheadofinsects.Thecompoundeyesofmostinsectsareround,ovalo...