{"id":26270,"date":"2023-01-18T10:42:10","date_gmt":"2023-01-18T13:42:10","guid":{"rendered":"https:\/\/mindthegraph.com\/blog\/viruses-that-can-cause-cancer-copy\/"},"modified":"2023-01-25T10:55:01","modified_gmt":"2023-01-25T13:55:01","slug":"nuclear-fusion","status":"publish","type":"post","link":"https:\/\/mindthegraph.com\/blog\/lt\/branduoliu-sinteze\/","title":{"rendered":"Branduolin\u0117 sintez\u0117: Lengvai suprantamas \u012fvadas"},"content":{"rendered":"

Mokslininkams pavyko pasiekti reik\u0161ming\u0105 prover\u017e\u012f branduoli\u0173 sintez\u0117s srityje, kuris gali atverti keli\u0105 gausiai \u0161variai energijai ateityje. <\/p>\n\n\n\n

\u0160\u012f atradim\u0105 pavyko padaryti tik d\u0117l daugiau nei pus\u0119 am\u017eiaus trukusi\u0173 branduoli\u0173 sintez\u0117s tyrim\u0173. <\/p>\n\n\n\n

Pateikiame lengvai suprantam\u0105 \u012fvad\u0105 apie branduoli\u0173 sintez\u0119, kad gal\u0117tum\u0117te tinkamai suprasti \u0161i\u0105 jaudinan\u010di\u0105 naujien\u0105.<\/p>\n\n\n\n

Kas yra branduolin\u0117 sintez\u0117?<\/h2>\n\n\n\n

Branduoli\u0173 sintez\u0117 - tai tam tikras branduolinis procesas, vykstantis, kai du ar daugiau atom\u0173 branduoli\u0173 susijungia, kad susidaryt\u0173 vienas didesnis branduolys. <\/p>\n\n\n\n

Branduoli\u0173 sintez\u0117s reakcijos vyksta materijos b\u016bsenoje, vadinamoje plazma, kuri yra kar\u0161tos, \u012fkrautos dujos, sudarytos i\u0161 teigiam\u0173 jon\u0173 ir laisvai judan\u010di\u0173 elektron\u0173, pasi\u017eymin\u010dios savyb\u0117mis, kurios skiriasi nuo kiet\u0173j\u0173 k\u016bn\u0173, skys\u010di\u0173 ar duj\u0173. <\/p>\n\n\n\n

Apibendrinant galima teigti, kad branduoli\u0173 sintez\u0117 yra mechanizmas, kuriuo Saul\u0117 ir kitos \u017evaig\u017ed\u0117s gauna energijos<\/strong>.<\/p>\n\n\n\n

Pavyzd\u017eiui: Tri\u010dio ir deuterio atomai (atitinkamai vandenilio izotopai Vandenilis-3 ir Vandenilis-2) susijungia ir sukuria neutron\u0105 ir helio izotop\u0105. Kartu i\u0161siskiria did\u017eiulis energijos kiekis.<\/p>\n\n\n\n

\u0160i energija gali b\u016bti naudojama elektrai gaminti arba kitiems daiktams maitinti. Manoma, kad tai potencialiai begalinis ir \u0161varus energijos \u0161altinis. <\/p>\n\n\n\n

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Kad branduoliai susijungt\u0173, jie turi susilieti itin auk\u0161toje temperat\u016broje, galb\u016bt 10 milijon\u0173 laipsni\u0173 pagal Celsij\u0173. D\u0117l auk\u0161tos temperat\u016bros jie turi pakankamai energijos, kad \u012fveikt\u0173 abipus\u012f elektrin\u012f pasiprie\u0161inim\u0105. Kai branduoliai yra labai arti vienas kito, j\u0173 tarpusavio branduolin\u0117 trauka \u012fveikia elektrin\u012f atst\u016bmim\u0105 ir leid\u017eia jiems susijungti bei sukurti energij\u0105.<\/p>\n\n\n\n

Branduoli\u0173 sintez\u0117 ir branduoli\u0173 dalijimasis<\/h2>\n\n\n\n

Ir skilimas, ir branduoli\u0173 sintez\u0117 yra branduolin\u0117s reakcijos, kuri\u0173 metu atomai pasikei\u010dia ir taip gaunama energija, ta\u010diau kuo jos skiriasi? <\/p>\n\n\n\n

Branduoli\u0173 sintez\u0117 - tai dviej\u0173 lengvesni\u0173 atom\u0173 susijungimas, kai susidaro didesnis atomas, o skilimas - tai vieno atomo skilimas \u012f du. Tai i\u0161 esm\u0117s prie\u0161ingi procesai.<\/p>\n\n\n\n

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Alberto Ein\u0161teino prognoz\u0117, kad mas\u0117 gali virsti energija, paskatino atrasti branduolio dalijim\u0105si. Mokslininkai prad\u0117jo eksperimentuoti 1939 m., o po met\u0173 Enrikas Fermis (Enrico Fermi) pastat\u0117 pirm\u0105j\u012f branduolin\u012f reaktori\u0173.<\/p>\n\n\n\n

Labai nestabilus izotopas yra veikiamas greit\u0173j\u0173 daleli\u0173, da\u017eniausiai neutron\u0173, kurie yra pagreitinami ir priver\u010diami atsitrenkti \u012f nestabil\u0173 izotop\u0105, sukelti skilim\u0105 ir suskilti \u012f du ma\u017eesnius izotopus, tris greituosius neutronus ir did\u017eiul\u012f energijos kiek\u012f. Uranas-235 naudojamas kaip neutronas did\u017eiojoje daugumoje branduolin\u0117s energijos reaktori\u0173. <\/p>\n\n\n\n

Pagaminta energija naudojama vandeniui \u0161ildyti branduoliniuose reaktoriuose, kurie v\u0117liau gamina elektros energij\u0105. Greitieji neutronai, i\u0161siskirdami ir tapdami sviediniais, pradeda naujus dalijimosi procesus, dar vadinamus grandinin\u0117mis reakcijomis. <\/p>\n\n\n\n

Branduolio dalijimosi metu susidaro daug radioaktyvi\u0173j\u0173 atliek\u0173, kurios gali b\u016bti pavojingos ir turi b\u016bti kruop\u0161\u010diai saugomos - galb\u016bt \u0161imtus met\u0173. Tuo tarpu branduoli\u0173 sintez\u0117 gamina \u0161vari\u0105 energij\u0105 be radioaktyvi\u0173j\u0173 atliek\u0173.<\/p>\n\n\n\n

Taip pat verta atkreipti d\u0117mes\u012f \u012f tai, kad branduoli\u0173 dalijimasis n\u0117ra nat\u016bralus procesas ir turi b\u016bti skatinamas, o branduoli\u0173 sintez\u0117 yra nat\u016bralus procesas, pavyzd\u017eiui, Saul\u0117 gamina energij\u0105 branduoli\u0173 sintez\u0117s b\u016bdu.<\/p>\n\n\n\n

Kod\u0117l branduolin\u0117 sintez\u0117 yra svarbi?<\/h2>\n\n\n\n

Branduoli\u0173 sintez\u0117s reaktoriai gali tiekti energij\u0105 su minimaliu \u0161iltnamio efekt\u0105 sukelian\u010di\u0173 duj\u0173 i\u0161metimu, radioaktyviosiomis atliekomis ar kitomis pasekm\u0117mis aplinkai arba be j\u0173. Jie gali u\u017etikrinti prakti\u0161kai neribot\u0105 \u0161varios energijos tiekim\u0105, suma\u017eindami m\u016bs\u0173 priklausomyb\u0119 nuo i\u0161kastinio kuro ir kit\u0173 ribot\u0173 energijos \u0161altini\u0173.<\/p>\n\n\n\n

Kadangi branduoli\u0173 sintez\u0117s reaktoriai nesukuria auk\u0161to lygio radioaktyvi\u0173j\u0173 atliek\u0173 kaip branduoli\u0173 dalijimosi reaktoriai, jas bus lengviau \u0161alinti. Be to, skirtingai nei branduoli\u0173 dalijimosi reaktori\u0173 atveju, atliekose nebus ginkl\u0173 radioaktyvi\u0173j\u0173 element\u0173.<\/p>\n\n\n\n

Branduolin\u0117s sintez\u0117s prover\u017eis <\/h2>\n\n\n\n

Pasak \"Financial Times\", mokslininkams pavyko i\u0161laisvinti 2,5 MJ energijos, sunaudojus tik 2,1 MJ kurui \u012fkaitinti lazeriais. \u0160\u012f atradim\u0105 dar turi patvirtinti Nacionalinis u\u017edegimo \u012frenginys (National Ignition Facility, NIF) Lawrence'o Livermore'o nacionalin\u0117je laboratorijoje Kalifornijoje, ta\u010diau tai fantasti\u0161ka naujiena.<\/p>\n\n\n\n

Tai svarbus mokslinis pasiekimas branduoli\u0173 sintez\u0117s srityje, vis\u0173 pirma tod\u0117l, kad mokslininkams pirm\u0105 kart\u0105 pavyko s\u0117kmingai sukurti branduoli\u0173 sintez\u0117s proces\u0105, kurio metu gaunama teigiama grynoji energija. <\/p>\n\n\n\n

Be abejo, dar reikia daug nuveikti, kad tai tapt\u0173 \u012fgyvendinama, ta\u010diau tai, kad mokslininkai sugeb\u0117jo generuoti daugiau energijos nei prad\u0117dami eksperiment\u0105, yra svarbus mokslo \u017eingsnis \u012f priek\u012f. Tai suteikia tyrimui kontekst\u0105 ir prasm\u0119.<\/p>\n\n\n\n

skleisti vaizdin\u0119 mokslin\u0119 komunikacij\u0105 visame pasaulyje.<\/h2>\n\n\n\n

Skleiskite savo darbus visame pasaulyje naudodami vaizdinius plakatus. Gerai sukurtas plakatas ne tik pad\u0117s j\u016bs\u0173 k\u016brin\u012f perskaityti trumpai, bet ir pad\u0117s jam pasiekti auditorij\u0105, apie kuri\u0105 net ne\u012fsivaizdavote. Plakatai yra lengviau pristatomi ir platinami, be to, jie tikrai gali priversti \u017emones prisiminti j\u016bs\u0173 tyrimus.<\/p>\n\n\n\n

Naudokite paprast\u0105 plakat\u0173 k\u016brimo \u012frank\u012f. Naudokite \"Mind The Graph\".<\/p>\n\n\n\n

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Iliustracijomis pagausinkite mano tyrimus<\/a><\/div>\n<\/div>\n\n\n\n
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Neseniai mokslininkai pasiek\u0117 pa\u017eangos branduoli\u0173 sintez\u0117s srityje. Per\u017ei\u016br\u0117kite \u0161i\u0105 lengv\u0105 \u012f\u017eang\u0105 ir su\u017einokite apie j\u0105 visk\u0105.<\/p>","protected":false},"author":28,"featured_media":26279,"comment_status":"closed","ping_status":"closed","sticky":false,"template":"","format":"standard","meta":[],"categories":[959,28],"tags":[],"yoast_head":"\nNuclear Fusion: An easy-to-understand introduction<\/title>\n<meta name=\"description\" content=\"Scientists have recently achieved advances in nuclear fusion. 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