ek laujik gate ki "vishvasaneeyata", asafalata (MTBF) ke beech uske ausat samay ka varnan karti hai. digital masheenon mein aksar laakhon laujik gate hote hai. iske alaava, adhikaansh digital masheenon ko unki laagat ko kam karne ke liye "anukoolit" kiya jaata hai. nateeja saaf hota hai, ek ekal laujik gate ki vifalta, ek digital machine ke kaam band karne ka kaaran banegi.
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.

sanbhaar-tantr aur parivhan, RFID praudyogiki ke kaaryaanvayan ke pramukh kshetr hain. udaaharan ke liye, yaard prabandhan, shiping aur maal dhulaai aur vitran kendra, kuchh aisi jagahein hain RFID traiking praudyogiki ka istemaal kiya jaata hai. duniya bhar ki parivhan companiyaan, vyaapaar moolya aur kaaryakushalata par RFID praudyogiki ke prabhaav ke kaaran isko tavajjo deti hain.
saan Diego, California, metropolitan traanjit system (MTS), north County traanjit distrikt (NCTD) aur the sain Diego asosiyeshan of gavarmeint (SANDAG) ek ri-raaitebal RFID smart card ka upayog karti hai jise sthaaneeya taur par kampaas card ke roop mein nirdisht kiya jaata hai aur bason aur railgaadiyon ki yaatra aasaan banaane ke liye dainik, saaptaahik ya maasik paas ya nakad moolya ke roop mein upayog kiya ja sakta hai.
vipanak (adhikatar) yah jaanakar prasann honge ki sampoorn maanav-vishisht kaaryon ke svachaalan ko saksham karane vaalee unnat takaneek ke saath 2017 mein svachaalan ek bada aadhaar ban jaega. hamaare paas kuchh varshon ke lie prachalan mein robot patrakaar the, aur mujhe ummeed hai ki ve adhik vyaavahaarik prakaar ke lekhon mein ek aur chhalaang lagaane se pahale lambe samay tak nahin rahenge. aisa hone kee sambhaavana hai ki ham kaee prakaar kee shvet-kolar prakaar kee naukariyon mein utpaadakata badhana shuroo kar denge- aur ham kuchh naukariyon ko pooree tarah se gaayab hone se dekhana shuroo karenge. jab otomeshan masheen seekhane ke saath joda jaata hai, to sab kuchh bhee tez ho sakata hai, isalie 2017 mein vaastav mein ek meel ka patthar varsh hone kee sambhaavana hai.
jis tarah se main ise dekhata hoon, vahaan 2017 mein ham saat pramukh takaneek pravrttiyon kee dukaan mein hain. yadi aap ek sektar mein najar rakh rahe hain jisamen koee vyavasaay shuroo karane ke lie, inamen se koee ek bahut achchha shart hai yadi aap pahale se hee ek udyamee hain, to is baare mein sochen ki aap apane lakshit darshakon tak nae tareeke se pahunchane ke lie in praudyogikiyon ka laabh kaise utha sakate hain.
dendaari lekhon mein, ek saadhaaran glati se adhik bhugataan ho sakta hai. ek saamaanya udaaharan mein dupleeket beejak shaamil hain. ek beejak asthaai roop se glat jagah rakha ja sakta hai ya abhi bhi anumodan star par ho sakti hai, jab vikreta uske bhugataan ki sthiti maaloom karne ke liye sampark karta hai. A/P staaf sadasya chhaan-been karta hai aur paata hai ki usaka bhugataan abhi naheen hua hai, to vikreta dupleeket beejak bhejata hai; is beech mool beejak ka pata chalta hai aur usaka bhugataan ho jaata hai. uske baad dupleeket beejak aata hai aur anajaane mein usaka bhi bhugataan ho jaata hai, shaayad kisi alag beejak sankhya ke adheen.
raksha ki ek dviteeya shreni, taig kloning ko rokane ke liye kriptograafi ka upayog karti hai. kuchh taig ek prakaar ke "roling code" yojana ka upayog karte hain, jismein taig pahachaanakarta jaankaari pratyek scan ke baad parivrtit ho jaati hai, is tarah dekhi gayi pratikriyaaon ki upayogita ko kam kar deti hai. adhik parishkrut upakaran chunauti-pratikriya pramaaneekaran mein sanlagn hote hain jahaan taig, reedar ke saath soochana ka aadaan pradaan karta hai. in protokaul mein, taig aur reedar ke beech asurakshit sanchaar channel par gupt taig jaankaari naheen bheji jaati hai. balki, reedar taig ke liye ek chunauti jaari karta hai, jo ek parinaam ke saath javaab deta hai jiski ganana kuchh gupt moolya ke saath bandhe kriptograafik sarkit ka upayog karte hue ki jaati hai. aise protokaul, samamit ya saarvajanik kunji kriptograafi par aadhaarit ho sakta hai. koot roop se saksham taig ki aamtaur par keemat naatakeeya roop se uchch hoti hai aur ise saral samakaksh se adhik bijli ki aavashyakta hoti hai aur parinaamasvaroop in taig ki tainaati adhik seemit hai. is laagat/vidyut bandhan ne kuchh nirmaataaon ko kaafi kamjor ya svaamitv waali enkripshan yojanaaon ka upayog karke kootlekhit taig lagaane mein prerit kiya, jo parishkrut hamle ko aavashyak roop se naheen rokate. udaaharan ke liye, eksaun-mobil speedapaas, Texas instroomeints dvaara nirmit ek kootalekh-saksham taig ka upayog karta hai, jise digital signechar traansapondar (DST) kehte hain, jismein kam laagat ke liye ek chunauti-pratikriya protokaul karne ke liye ek kamjor, svaamitv enkripshan yojana shaamil hai.
digital bhangasheelata ko ek digital pranaali ke roopaankan dvaara majabooti ke liye kam kiya ja sakta hai. udaaharan ke liye ek pairiti bit ya anya truti prabandhan paddhati ko signal path mein daala ja sakta hai. yeh paddhati system ko, truti ka pata lagaane mein madad karti hai aur ya to trutiyon ko sahi karti hai ya fir kam se kam deta ki ek nai pratilipi ke liye poochhati hai. ek state machine mein state traanjishn laujik ka aprayukt state ko pakadne aur ek reeset anukram trigr ya anya niyamit truti vasooli ke liye design kiya ja sakta hai.
san 2000 mein 1.22 log dhoomrapaan karte the. prachalan mein parivartan ka koi anumaan na lagaate hue yeh bhavishyavaani ki gayi hai ki 2010 mein 1.45 billion log aur 2025 mein 1.5 se 1.9 billion log dhoomrapaan kareinge. maan lein ki prasaar ek saal mein 1% kam hota hai aur aay mein 2% ki maamooli vruddhi hoti hai to dhoomrapaan karne vaalon ki sankhya 2010 aur 2025 mein anumaanit 1.3 billion hogi.[13]
dhoomrapaan karne vaale maata pita ke bachchon mein gair dhoomrapaan karne vaale maata-pita ke bachchon se dhoomrapaan karne ki sambhaavana adhik hoti hai. ek adhyayan mein paaya gaya hai ki maata pita ke dhoomrapaan chhodne ka sambandh kishoraavastha mein kam dhoomrapaan se hai, sivaaya tab jab doosare maata pita vartamaan mein dhoomrapaan karte hon.[60] ek maujooda adhyayan ke pareekshan mein paaya gaya hai ki dhoomrapaan ke niyman ke maamale mein kishoraavastha mein dhoomrapaan ka sambandh ghar mein vayaskon ko dhoomrapaan ki anumati se hai. parinaam bataate hain ki ghar mein dhoomrapaan sambandhi pratibandhaatmak neetiyaan maadhyamik aur uchch vidyaalaya ke chhaatron ke dhoomrapaan ki koshish ki kam sambhaavana ke saath jude hain.[61]
suraksha visheshagya Bruce shneyar ne sujhaav diya hai ki ek havaai adde ke nikat sanchaalan karta ek lutera ameer deshon se aane vaalon ko shikaar bana sakta hai, ya ek aatankvaadi ek taatkaalik visfotak upakaran design kar sakta hai jo tab kaarya karega jab kisi vishesh desh ke vyakti dvaara sampark kiya jaae yadi yaatri apna card apne shareer ke najadeek (uchch taral aur khaari saamagri) ya ek fauyal-laaind batue mein naheen rakhate.
vishv svaasthya sangathan ka anumaan hai ki tambaakoo ki vajah se 2004 mein 5.4 million logon ki mrutyu hui[75] aur 20 veen sadi ke dauraan 100 million se adhik logon ki mrutyu hui.[76] isi tarah, sanyukt raajya America rog niyantran aur nivaaran kendra ne tambaakoo ka prayog ka varnan viksit deshon mein maanav svaasthya aur duniya bhar mein samay se pehle maut ke sabse mahatvapoorn jokhim vaale kaarak ke roop mein ki hai."[77]
dendaari lekhon ke karmiyon dvaara frji beejakon par nazar rakhani chaahiye. khareed aadesh pranaali ke abhaav mein, raksha ki pehli pankti hai anumodit karne wala prabandhak. fir bhi, A/P stauf ko kuchh saamaanya samasyaaon ke saath parichit hona chaahiye, jaise "yallo pejas" dhokhaadhadiyaan, jismein kapati prachaalak vigyaapan dete hain. chalne waali ungaliyon ke logo ko kabhi tredamaark naheen banaaya gaya hai aur yallo pejas shaili ki kai nirdeshikaaen upalabdh hain, jinka bahut kam vitran hota hai. sheetakaaleen 2000 ameriki perol association ke empalauyar praiktiss ke ek lekh ke anusaar, "vikreta aise dastaavej bhej sakte hain jo dekhne mein beejak ke samaan lage, lekin jin par chhote aksharon mein mudrit hota hai "yeh bill naheen hai". ye nirdeshika soocheekaran ya vigyaapan ke liye shulk ho sakte hain. haal hi mein, kuchh companiyon ne jo check bhejane shuroo kiye hain, ve dekhne mein to chhoot ya vaapasi ki prateet hoti hain; vaastav mein, yeh sakriya sevaaon ke liye panjeekaran hai, jab dastaavej hastaakshar ke saath lautaae jaate hain."

sanvedya jagat enalaug ke hain aur is jagat se sanket enalaug maatraaen hain. udaaharan ke liye prakaash, taapamaan, dhvani, vidyut chaalakata, vidyut aur chunbakeeya aadhaar enaalaug hain. sabse upayogi digital system nirantar enaalaug sanketon se digital sanketon ko alag karne ke liye badalna hoga. yeh parimaaneekaran trutiyon ka kaaran banta hai.

lo-freekveinsi (LF: 125-134.2 kHz aur 140-148.5 kHz) (LowFID) taig aur haai-freekveinsi (HF: 13.56 MHz) (HighFID) taig bina ek license ke vishv star par prayog kiya ja sakta. ultra haai-freekveinsi (UHF: 868-928 MHz) (Ultra-HighFID ya UHFID) taig ko duniya bhar mein istemaal naheen kiya ja sakta hai kyonki koi bhi vaishvik maanak naheen hai. uttari America mein, UHF ko 902-928& MHz (915 MHz center freekveinsi se ± 13 MHz) ke liye bina license ke istemaal kiya ja sakta hai, par paareshan adhikaar ke liye pratibandh maujood hain. Europe mein, RFID aur anya kam-kshamata vidyut radio anuprayog, ETSI ki sifaarishon EN 300 220 aur EN 302 208 aur ERO 70 03 sifaarish dvaara viniymit hain, jo RFID ko 865-868 megaahartaj ke kuchh jatil band pratibandhon ke saath sanchaalan ki anumati dete hain. paathakon ko prasaaran se pehle ek channel par najar rakhane ki jaroorat hoti hai ("lisen bifor tauk"); is aavashyakta se pradarshan par thoda pratibandh laga hai, jiska sankalp maujooda shodh ka vishay hai. uttar ameriki UHF maanak, France mein sveekaar naheen kiye jaate hain choonki ye uske sainya band ke saath hastakshep karte hain. cheen aur Japan ke liye, UHF ka upayog karne ke liye koi niyam naheen hai. in deshon mein har UHF ke aavedan ke liye ek site license ki jarurat hai, jiska aavedan sthaaneeya adhikaariyon ke paas kiya jaana chaahiye aur ise radd kiya ja sakta hai. Australia aur New Zealand ke liye 918-926 megaahartaj gair-license vaale hain, lekin sancharan adhikaar ke liye pratibandh maujood hain.
saan Diego, California, metropolitan traanjit system (MTS), north County traanjit distrikt (NCTD) aur the sain Diego asosiyeshan of gavarmeint (SANDAG) ek ri-raaitebal RFID smart card ka upayog karti hai jise sthaaneeya taur par kampaas card ke roop mein nirdisht kiya jaata hai aur bason aur railgaadiyon ki yaatra aasaan banaane ke liye dainik, saaptaahik ya maasik paas ya nakad moolya ke roop mein upayog kiya ja sakta hai.
Singapore mein, saarvajanik parivhan ki bason aur trainon mein nishkriya RFID ko laagoo kiya gaya hai jise EZ-Link card ke roop mein jaana jaata hai. bheed bhare shahar ke aatanrik kshetron mein yaataayaat ko char tol dvaara niyantrit kiya jaata hai jise stord vailyoo card (kaishakaard ke roop mein gyaat) ke upayog ko ek sakriya taiging pranaali ke saath upayog dvaara laagoo kiya jaata hai.
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