veparaaijr ek upakaran hai jiska upayog paudhe ki saamagri ke sakriya tatv ko parishuddh karne ke liye hota hai. vanaspati ko jalaane ke badle sambhaavit pareshaani paida karne vaale jahareele ya Cancer paida karne vaale up utpaad ko tambaakoo se door karne hetu veparaaijr, saamagri ko ek aanshik vaikyoom mein itna tapaata hai ki paudhe mein upasthit sakriya yaugik khaulakar bhaap ban jaayein. dhoomrapaan saamagri sambandhi chikitseeya prashaasan seedhe paudhe ki saamagri ko garm karne mein aksar is vidhi ka upayog karta hai.
"sviching gati" yeh bataati hai ki ek inavartar prati sekand kitni baar troo se faals aur vaapas mein badal sakta hai ("laujikl naheen" prakriya ki ek electronic prastuti). tej laujik kam samay mein adhik kaarya ko poora kar sakte hain. digital laujik pehli baar tab upayogi ban gaye jab svichn gati pachaas hartj se oopar ho gayi, kyonki vah yaantrik kailakuletar ka sanchaalan kar rahe manushyon ke ek dal se tej thi. aadhunik electronic digital laujik niyamit roop se paanch geegaahartj (5 × 109 hartj) par parivrtit hote hain aur kuchh prayogashaala pranaali ek teraahartj (1 × 1012 hartj) se adhik par parivrtit hoti hai.
ek safal pilot ke baad, aavaas evam vikaas board (HDB) Singapore ne 2006 mein kaagaj season parking ticket (SPT) ko pratisthaapit karte hue RFID ko laagoo karne ke liye do nividaaon ko jaari kiya. safal nividaakaaron ne March 2007 ke baad se SPT dhaarakon ko RFID taig vitrit kiya.[14] viytanaam mein, futek ke paas is desh mein kai bilding ke liye svachaalit jaanch ticket pranaali laagoo hai. 

According to General Pakravan, "The ayatollah used to say in this very flowery Eastern way, 'Timsar [General], I count the days until we reach the day of our luncheon.'" He described the ayatollah as, very handsome, someone with extraordinary presence, a power of seduction and great charisma. They talked about religion, philosophy, and history. General Pakravan also found him to be very ambitious and secretive. "So much so that it made my hair stand on end. It was frightening," he told his wife.
1600 dashak ke madhya mein pratyek pramukh samaaj mein tambaakoo ke dhoomrapaan ka prachalan karaaya gaya aur kai maamalon mein iske upayog ko kai shaasakon dvaara kathor dand ya jurmaana lagaakar samaapt karne prayaason ke baavajood vah mool sanskruti mein pehle hi aatmasaat kiya ja chuka tha. tambaakoo utpaad aur paudha donon pramukh vyaapaar maargon se pramukh bandaragaahon aur baajaaron mein aaya aur fir bheetari pradeshon mein pahuncha. angreji bhaasha mein smoking (smoking) shabd 1700 ke dashak ke paravarti kaal mein gadha gaya, usase pehle use drinking smok (drinking smoke) kaha jaata tha.[3][page needed]

Gen2 EPC inlej ki sabse kam laagat smaartakod dvaara 100 million ya adhik ke khand mein pratyek tukade ke liye $0.05 ki hai$[61]. fir bhi, aagaami roopaantaran (atirikt lebal stock ya inkaipsooleshan prasanskaran/pravishti aur ek suvidha ya DC ke liye maal dhulaai laagat sahit) aur upayogi RFID lebal mein inlej se aur maujooda Gen 2 protokaul maanak ka design, kul antim laagat mein badhotri karega, vishesh roop se RFID aapoorti shrrunkhala vastu-stareeya taiging ke liye atirikt suraksha upaayon ke vistaar ke saath.
kai deshon jaise Ireland, laataviya, estoniya, Netherland, France, Finland, naarve, Canada, Australia, sveedan, Portugal, Singapore, Italy, Indonesia, Bhaarat, lithuaaniya, chili, Spain, aaisalaind, United Kingdom, sloveniya aur maalta ne saarvajanik sthaanon par dhoomrapaan ke khilaaf kaanoon banaaye hain, jinmein baar aur restaurant bhi shaamil hain. restaurant mein bhi kuchh nyaayaalayon ne anumati di hai ki ve sunishchit dhoomrapaan kshetron (ya dhoomrapaan nishedh ke liye) ka nirmaan karein. sanyukt raajya America mein kai raajyon mein restaurant mein dhoomrapaan nishedh hai aur kuchh sharaabakhaanon mein bhi dhoomrapaan nishedh hai. Canada ke praanton mein inador kaaryasthalon aur saarvajanik sthaanon par dhoomrapaan avaidh hai jinmein sharaabakhaane aur restaurant bhi shaamil hain. 31 March 2008 ko Canada ne sabhi saarvajanik sthaanon par dhoomrapaan par pratibandh lagaaya, saath hi saath kisi bhi saarvajanik jagah ke pravesh dwaar ke 10 meter ke bheetar bhi yeh pratibandh laagoo hai. Australia mein dhoomrapaan par pratibandh har raajya mein alag-alag hai. vartamaan mein kveensalaind mein sabhi saarvajanik sthalon ke androoni hisson mein dhoomrapaan par poornataya pratibandh hai (jinmein kaaryasthal, sharaabakhaane, pab aur bhojanaalaya shaamil hain) saath hi saath aavaajaahi vaale samudra tat aur kuchh saarvajanik sthalon ke baahari kshetr shaamil hain. tathaapi, chihnit dhoomrapaan kshetr apavaad hain. Victoria mein train stationon, bas staap aur train staap par dhoomrapaan nishiddh hai aur in saarvajanik sthaanon par jahaan dhoomrapaan se parivhan ka intajaar kar raha gair dhoomrapaan karne wala prabhaavit ho sakta hai aur 1 July 2007 se use sabhi inador saarvajanik sthalon par laagoo kar diya gaya hai. New Zealand aur Brazil mein saarvajanik sthaanon se sanlagn kshetr mein dhoomrapaan karne par pratibandh laga diya hai, jismein mukhya roop se sharaabakhaana, restaurant aur pab shaamil hai. Hongkong mein 1 January 2007 ko kaaryasthal mein dhoomrapaan par pratibandh laga diya gaya jaise restaurant, karaaoke rooms, imaaraton aur saarvajanik park. sharaab parosane vaale baar jinmein 18 varsh ki aayu se kam ke logon ko pravesh naheen dete, ko 2009 tak chhoot di gayi. romaaniya mein railgaadiyon, metro stationon, saarvajanik sansthaanon (jahaan aamtaur par nirdisht sthal baahar hai) aur saarvajanik parivhan mein dhoomrapaan avaidh hai.
saare pareekshan ke baad, deta bits jagah par hain, dijaain ko "saamaanya mod" ke liye reekanfigr kiya jaata hai aur ek ya ek se adhik klauk pals ko laagoo kiya jaata hain, taaki dosh ka pata lag sake (jaise stak-ait lo ya stak-ait haai) aur pareekshan ke parinaam ka pragrahan scan shift rajistar mein flip-flop mein aur/ya leches mein kiya jaata hai. ant mein, pareekshan ke parinaam ko block seema mein sthaanaantarit kar diya jaata hai aur poorvaanumaan "gud machine" nateeje ke prati tulana ki jaati hai.
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