Ulwazi

I-Diode yenziwe nge-PN junction, kwaye i-photodiode inokuguqula isignali ye-optical ibe ngumqondiso wombane, njengoko kuboniswe ngezantsi: Ngokuqhelekileyo, i-covalent bond i-ionized xa i-PN junction ikhanya ngokukhanya.Oku kudala imingxunya kunye neeperi electron.Ifotocurrent yenziwe ngenxa...

I-LAN yeyona nto idumileyo esiyisebenzisayo namhlanje.Yintoni i-LAN?Inethiwekhi yeNdawo yeNgingqi (LAN) ibhekisa kwiqela leekhompyuter ezidityaniswe ziikhompyuter ezininzi kwindawo ethile zisebenzisa ijelo losasazo.Okukhona kukho kule ndawo, kokukhona izixhobo ezikwaziyo ukunxibelelana omnye komnye.Kwaye kuphela ...

Ngophuhliso olukhawulezayo lweekhompyuter kunye nethekhnoloji yokunxibelelana kwabo (ekwabizwa ngokuba yi "teknoloji yenethiwekhi"), i-Ethernet ibe yinethiwekhi yekhompyuter enemigangatho emibini enenqanaba eliphezulu lokungena ukuza kuthi ga ngoku.Inxalenye ephambili ye-Ethernet sisitshixo se-Ethernet.Incwadi kunye...

I-VCSEL, ebizwa ngokuba yi-Vertical Cavity Surface Emitting Laser ngokupheleleyo, luhlobo lwe-laser semiconductor.Okwangoku, uninzi lwe-VCSEL lusekwe kwii-semiconductors ze-GaAs, kwaye i-wavelength ekhutshwayo ikakhulu kwi-infrared wave band.Ngo-1977, uNjingalwazi u-Ika Kenichi weYunivesithi yaseTokyo yeTekhnoloji ufir...

Inethiwekhi ingahlelwa ngokwe-LAN, LAN, MAN, kunye ne-WAN.Iintsingiselo ezithe ngqo zezi zibizo zicacisiwe kwaye zithelekiswe apha ngezantsi.(1) Uthungelwano lweNdawo yoBuntu (PAN) Uthungelwano olunjalo lunokwenza unxibelelwano lomnatha olumgama omfutshane phakathi kwezixhobo zombane eziphathwayo kunye nezixhobo zonxibelelwano, Le cov...

I-RSSI sisishunqulelo seSalathiso soMqondiso oFunyiweyo waMandla.Uphawu lwamandla omqondiso olufunyenweyo lubalwa ngokuthelekisa amaxabiso amabini;oko kukuthi, inokusetyenziswa ukumisela ukuba yomelele okanye ibuthathaka kangakanani na amandla omqondiso xa kuthelekiswa nolunye uphawu.Ifomula yokubala yeRSSI...