tambaakoo dhoomrapaan ek aisa abhyaas hai jismein tambaakoo ko jalaaya jaata hai aur usaka dhuaan ya to chakha jaata hai ya fir use saans mein kheencha jaata hai. iska chalan 5000-3000 E.poo.ke praarambhik kaal mein shuroo hua.[1] kai sabhyataaon mein dhaarmik anushthaanon ke dauraan ise sugandh ke taur par jalaaya gaya, jise baad mein aanand praapt karne ke liye ya fir ek saamaajik upakaran ke roop mein apnaaya gaya.[2] puraani duniya mein tambaakoo 1500 ke dashak ke antim daur mein prachalit hua jahaan isne saajha vyaapaarik maarg ka anusaran kiya. haalaanki yeh padaarth aksar aalochna ka shikaar banta raha hai, lekin iske baavajood vah lokapriya ho gaya.[3] jarman vaigyaaniko ne aupachaarik roop se der se 1920 ke dashak ke ant mein dhoomrapaan aur fefade ke Cancer ke beech ke sambandhon ki pehchaan ki jisse aadhunik itihaas mein pehle dhoomrapaan virodhi abhiyaan ki shuruaat hui. aandolan tathaapi dviteeya vishv yuddh ke dauraan dushmanon ki seema mein pahunchane mein naakaam raha aur uske baad jald hi alokapriya ho gaya.[4] 1950 mein svaasthya adhikaariyon ne fir se dhoomrapaan aur Cancer ke beech ke sambandh par charcha shuroo ki.[5] vaigyaanik pramaan 1980 ke dashak mein praapt hue, jisne is abhyaas ke khilaaf raajaneetik kaarravaai par jor diya. 1965 se viksit deshon mein khapat ya to ksheen hui ya fir usamein giraavat aayi.[6] haalaanki, vikaasasheel duniya mein badhat jaari hai.[7]

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.
kaaryaatmak satyaapan data, aam taur par "pareekshan vektar" kahalaate hain. kaaryaatmak pareekshan vektar ko sanrakshit kiya ja sakta hai aur kaarkhaane mein yeh pareekshan karne ke liye istemaal kiya ja sakta hai ki navanirmit laujik sahi dhang se kaam karta hai ya naheen. haalaanki, kaaryaatmak pareekshan paitarn, aam nirmaan galatiyon ki khoj naheen karte. utpaadan pareekshan, aksar software upakaran dvaara design kiye jaate hain jinhein "test paitarn generator" kaha jaata hai. laujik ki sanrachana ki jaanch aur vyavasthit dhang se vishesh dosh ke liye test janit kar, ye pareekshan vektar ko utpann karte hain. is tarah fault coverage kareeb 100% tak pahunch sakta hai, basharte dijaain ko theek tarah se pareekshan yogya banaaya gaya ho (agale anubhaag ko dekhein).
tambaakoo mein sakriya tatv, vishesh roop se cigarette mein patton ko jalaakar aur vaashpeekrut gas ko saans se kheenchakar praapt kiya jaata hai. yeh jald aur prabhaavi dhang se padaarthon ko khoon mein avashoshit kar fefadon mein koshikaaon ke jariye pahunchaaya jaata hai. fefadon mein lagbhag 300 million rakt koshikaaen hoti hai, jiske satah ka kshetrafal 70 m2 (ek tennis court ke aakaar ke baraabar) hota hai. yeh vidhi vifal hai kyonki poora dhuaan saans se naheen kheencha jaata hai aur sakriya padaarthon mein se kuchh maatra jalaaye jaane ki prakriya ke dauraan vaashpeekaran mein nasht ho jaati hai.[9] pipe aur sigaar ka dhuaan uchch kshaarayukt hone ke kaaran saans se naheen kheencha jaata jo shvaasanali aur fefadon ko haani pahuncha sakte hain. tathaapi, cigarette (pH 5.3) ke dhuen ki tulana mein iske uchch kshaarayukt (pH 8.5) hone ke kaaran sangathit nikoteen aur adhik aasaani se munh mein shleshm jhilli ke maadhyam se avashoshit kar leta hai.[45] sigaar aur pipe se nikoteen avashoshan baharahaal cigarette ke dhuen se bahut kam hota hai.[46]
In 2017 Sarvekshak became the 1st ship of Indian Navy ever to deploy solar power. It has innovatively deployed the zero-maintenance solar power system, capable of generating 5.4 kW electricity and replacing the ship’s traditional 4.4 kW emergency diesel alternator.[12] The installation cost was around Rs. 19 lakh and the generation cost is Rs. 12 per kv per hour. The estimated savings for a lifespan of about 15 years is around Rs. 1 crore. The current diesel generator consumes a litre of diesel to produce five units of electricity. Captain Rajesh Bargoti, the commanding officer of the ship, said It took about six months to put the entire system in place. We are now using solar energy for lights and a couple of air conditioners.'[13] The estimated profit generated in a ship service life of 25 years is Rs 2.7 crore in this small project alone. "Even if the system is used for 25 days in one year, the system can repay its cost in less than 10 years while protecting the nature," the Navy said.
nishkriya aur sakriya RFID system ka istemaal sadak ke baahar ke khelon mein hota hai jaise oriyenatiaring, endyooro heyar end haaunds resing. chaalakon par ek traansapondar laga hota hai, aamtaur par unke haath par. jab ve ek laip poora karte hain to ve svaaip karte hain ya riseevar ko chhoote hain jo ek computer se juda hota hai aur unke laip samay ko darj karta hai. kaaseemo group limited aisi pranaali bechata hai, jaisa ki sveedan ka SportIdent. RFID ko kai bharti agencyon dvaara anukoolit kiya ja raha hai jinme unki arhak prakriya ke roop mein ek PET hai (fijikl endyoreins test), vishesh roop se un maamalon mein jahaan ummeedavaaron ki sankhya laakhon mein ho (bhaarateeya railway bharti prabhaag, police aur bijli kshetr). ek bhaarateeya software company, software aautasorsing sarvises ne is pranaali ko pehli baar UHF taig ka upayog karte hue isi uddeshya ke liye sateek banaaya hai aur ve pratidin 30,000 se jyaada ummeedavaaron ko chhaantane mein saksham hain.
laujik geton ke samakaksh set ke saath digital sarkit ka pratinidhitv shaastreeya tareeka hai. praay: kam se kam electronic ke saath electronic svichon ke samakaksh pranaali ka nirmaan ek doosra tareeka hai (aam taur par traanjistar karta hai). sirf ek trooth table se yukt smruti aasaan tareekon mein se ek hota hai. memori ke pate par input daale jaate hain aur memori ke data aaootput, aaootput ban jaate 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.

ubots

×