lekha-pareekshak aksar kaate gaye chekon ke samarthan mein anumodit beejakon, vyaya riporton aur anya samarthak pralekhanon ki maujoodagi par dhyaan keindrit karte hain. aapoortikrta se pushtikran ya bayaan ka hona, khaate ke astitv ka samuchit pramaan hai. yeh asaamaanya naheen hai ki lekha-pareeksha ke chaaloo hone tak, inmein se kuchh pralekhan kho jaaen ya glat faailon mein rakhe jaaen. aisi sthitiyon mein lekha-pareekshak namoone ke aakaar ko badhaane ka faisala kar sakte hain.

As a child, Pakravan accompanied his parents to Cairo, where his father was appointed diplomatic agent. There, he received his primary education at the Lycée Français. He was then sent to Liège, Belgium where he attended high school and university. Pakravan then studied at the artillery school in Poitiers, France, and the Ecole d’Application d’Artillerie in Fontainebleau.


sooparakandaktiviti ki khoj, raipid ekal flaks kvaantam (RSFQ) ke vikaas sarkit praudyogiki ko sambhav kar pai hai joki traanjistar ke bajaay josefasan jankshan ka upayog karta hai. haal hi mein, aise shuddh optikl kanpyooting pranaali ko banaane ka prayaas kiya gaya, joki naunaleeneear optikl tatvon ka prayog karke digital soochana sansaadhit karne mein saksham hai.


RFID praudyogiki ke upayog ne kaafi vivaad ko janm diya aur yahaan tak ki upabhokta gopaneeyata pairokaaron dvaara utpaad bahishkaar bhi hua. CASPIAN (kanjyoomar ageinst suparamaarket praaivesi invejn end nambaring) ki sah-sansthaapak Cathrine albrekt aur lij maikintaayar is praudyogiki ki do pramukh aalochak hain jo RFID taig ka ullekh "spaaichips" ke roop mein karti hain. RFID sambandhit do mukhya gopaneeyata chintaaen hain:
prativedan ke liye engineer digital system ke prakaaron par vichaar karte hain. adhikaansh digital system "sanyojan system" aur "anukramik system" mein vibhaajit ho jaate hain. sanyojan pranaali mein hamesha jo input diya jaata hai vahi aautaput vah deta hai. yeh mool roop se laujik prakriya ke set ka pratinidhitv karta hai aur jiski charcha pehle hi ki ja chuki hai.
ek digital pranaali mein, ek adhik sateek sanket ke pratinidhitv ke liye adhik baainari ankon ka upayog kiya ja sakta hai. haalaanki is prakriya ke liye ismein adhik aankik paripth ki aavashyakta hoti hai, choonki pratyek ank ek hi prakaar ke haardaveyar dvaara sambhaala jaata hai nateejatan ek aasaan maapaneeya tantr ka nirmaan ho jaata hai| ek enaalaug system mein atirikt rejlushan raikhikta mein buniyaadi sudhaar aur sanket shrrunkhala ke pratyek charan ke shor ke abhilkshan mein buniyaadi sudhaar ki aavashyakta hoti hai.
RFID suraksha ko lekar ek praathamik chinta RFID taig ki avaidh traiking hai. taig, jo vaishvik roop se pathaneeya hain, ve niji sthaan gopaneeyata aur kaurporet/sainya suraksha, donon ke liye khatra paida kar rahe hain. is tarah ki chintaaen, ameriki raksha vibhaag dvaara haal mein aapoorti shrrunkhala prabandhan ke liye RFID taig ko apnaane se uthaai gayi hain.[63] aam taur par, gopaneeyata sangathanon ne electronic utpaad code (EPC) RFID taig ko upabhokta utpaadon mein sannihit karne ke chal rahe prayaason ke sandarbh mein chinta vyakt ki hai.
haai-freekveinsi RFID ya HFID/HighFID taig pustakaalaya ki pustakon ya kitaabon ki dukaan ki traiking, gahanon ki traiking, pailet traiking, abhigm niyantran nirmaan, airline saamaan traiking aur paridhaan aur davaaon ki traiking. haai-freekveinsi taig, vyaapak roop se pehchaan baij mein prayukt hote hain jinhonne pehle ke maignetik-straaip card ka sthaan liya. dhaarak ko pramaanit karne ke liye in baij ko reedar se ek nishchit doori ke bheetar rakhana hota hai. American express blue kredit card mein ab ek HighFID taig shaamil hai. fravari 2008 mein, ameeraat airline ne London aur dubai havaai addon par RFID saamaan traiking ka pareekshan shuroo kiya.
apni adyatan sanrachana aur suvijnyaata ke saath si pi aar I ne desh ke vidyut kshetr ko unnat yojana, prachaalan tatha vidyut pranaaliyon ke niyantran ke liye paryaapt yogadaan diya hai. aantarik anusandhaan va vikaas ke alaava, si pi aar I suvijnyaata ke vibhinn kshetron mein nirmaataaon aur anya abhikranon se praayojit anusandhaan pariyojanaaon ko sveekaarata hai.
Parakala had a chequered public life and an unsuccessful electoral career. Born into a political family, he became familiar with electoral politics since his childhood. His debut as a political activist started when he was elected as the President of the Jawaharlal Nehru University (JNU), New Delhi unit of the Congress Party affiliated students' organisation National Students' Union of India (NSUI). He contested the Students' Union Elections of JNU and lost to the CPI(M) affiliated organisation SFI candidate. However, it was for the fist time that NSUI polled a respectable number of votes for the central panel of candidates and could win a Councillor seat. Parakala's participation in May 1983 students' agitation on the campus agains the highhanded attitude of the university authorities lent political respectability to NSUI on the Campus. till then Congress affiliated NSUI was treated as political untouchable in the left dominated student politics of the university.
kuchh pranaaliyon mein yadi digital deta ka ek bhaag lupt ho jaae ya galat tareeke se vyavahrut hon, to sambandhit deta ke vishaal khandon ka arth poori tarah se badal sakta hai. kyonki kleef ifekt ke kaaran, upayogakartaaon ke liye bataana mushkil hai ki koi vishisht system vifalta ke kagaar par sahi tha ya fir vah asafal hone se pehle bahut adhik shor ko sahan kar sakta hai ya naheen.
January, 2005 mein, Wall-Mart ne apne sheersh 100 aapoortikrtaaon ke liye sabhi ladaan par RFID lebal lagaana jaroori kar diya. is aavashyakta ko poora karne ke liye, vikretaaon ne dabbon aur pailet par jismein Wall-Mart ke liye EPC taig ki aavashyakta thi, lebal lagaane ke liye RFID printar/inakodar ka upayog kiya. ye smart lebal, saamagri ke andar RFID inlej jad kar aur uske baad lebal ki satah par baar code aur dikhaai dene waali anya jaankaari mudrit kar ke nirmit kiye gaye hain.
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