{"id":53625,"date":"2019-12-06T00:00:00","date_gmt":"2019-12-05T21:00:00","guid":{"rendered":"https:\/\/prohoster.info\/blog\/blog_prohoster\/grafen-kotoryj-vsyo-eshhyo-ne-smog"},"modified":"2020-02-18T14:01:33","modified_gmt":"2020-02-18T11:01:33","slug":"grafen-kotoryj-vsyo-eshhyo-ne-smog","status":"publish","type":"post","link":"https:\/\/prohoster.info\/ro\/blog\/news\/grafen-kotoryj-vsyo-eshhyo-ne-smog","title":{"rendered":"Grafenul care nu a reu\u0219it \u00eenc\u0103","gt_translate_keys":[{"key":"rendered","format":"text"}]},"content":{"rendered":"

\"Grafenul
\n
\nC\u00e2t de des \u00een mass-media observ\u0103m \"\u0219tiri din viitor\", care anun\u021b\u0103 cu m\u00e2ndrie succesele planificate ale \u0219tiin\u021bei \u00een beneficiul economiei na\u021bionale a \u021b\u0103rii? De multe ori, \u00een comentariile la astfel de mesaje \u0219i reportaje se poate g\u0103si scepticism \u0219i apeluri de a scrie doar despre evenimentele deja realizate. La planuri str\u0103lucitoare \u0219i \u00eencurajatoare credem mai pu\u021bin.<\/p>\n

Ei bine, astfel de publica\u021bii nu sunt unice \u00een peisajul informa\u021bional autohton. Nu este at\u00e2t de greu s\u0103 d\u0103m de \"anun\u021burile lor\" din New Vasuki.<\/p>\n

Propun s\u0103 urm\u0103rim soarta faimosului proiect tehnologic, care a st\u00e2rnit interes at\u00e2t \u00een Occident, c\u00e2t \u0219i \u00een mass-media vorbitoare de rus\u0103. Dac\u0103 joci bingo cu prostii, \u00ee\u021bi voi da un indiciu \u00eenainte de a continua \u2014 grafen<\/u><\/b>.
\n<\/a><\/noindex><\/p>\n

C\u00e2nd \u0219i ce a fost promis<\/h4>\n

\n\u00cen martie 2019, \u00een mass-media vorbitoare de englez\u0103, predominant britanic\u0103, s-a r\u0103sp\u00e2ndit o declara\u021bie r\u0103sun\u0103toare din partea companiei Paragraf<\/a><\/noindex>. CEO-ul \u0219i co-fondatorul Simon Thomas povestea optimist despre succesele grandioase \u00een produc\u021bia de grafen. Conform spuselor sale, \u00eentemeiat\u0103 \u00een 2015<\/a><\/noindex> de c\u0103tre profesorul de la Cambridge, Sir Colin Humphreys, compania Paragraf a reu\u0219it s\u0103 stabileasc\u0103 un proces tehnologic stabil de produc\u021bie a grafenului sub form\u0103 de discuri cu un diametru de p\u00e2n\u0103 la 200 mm.<\/p>\n

\"Grafenul
\n
\nBaz\u00e2ndu-se pe cercet\u0103ri de lung\u0103 durat\u0103 \u0219i ani de munc\u0103 pentru stabilizarea procesului tehnologic, Simon a promis c\u0103 \u00een termen de dou\u0103 luni va \u00eencepe produc\u021bia industrial\u0103 de dispozitive utiliz\u00e2nd grafen.<\/p>\n

Ce a precedat promisiunea<\/h4>\n

\nBine\u00een\u021beles, astfel de tehnologii neobi\u0219nuite nu pot ap\u0103rea din neant. P\u00e2n\u0103 la urm\u0103, problemele legate de produc\u021bia industrial\u0103 a grafenului sunt abordate de gigan\u021bi precum IBM, Intel, Samsung, precum \u0219i de multe alte grupuri. Cu greu putea \u0219i trebuia s\u0103 le devans\u0103m \u00een modul stealth. Prin urmare, putem g\u0103si urme ale activit\u0103\u021bilor lor anterioare.<\/p>\n

\u00cen 2017, compania a primit investi\u021bii<\/a><\/noindex> a ob\u021binut o sum\u0103 de \u00a33 milioane, inclusiv fonduri guvernamentale. Aceste fonduri erau destinate dezvolt\u0103rii prototipurilor \u0219i perfec\u021bion\u0103rii tehnologiei (s\u0103 ne amintim, compania a fost \u00eenfiin\u021bat\u0103 \u00een 2015, iar cercet\u0103rile, care au f\u0103cut etapa de comercializare posibil\u0103, au fost efectuate cu mult timp \u00eenainte).<\/p>\n

\u00cen mai 2018, compania a primit un nou tran\u0219<\/a><\/noindex> finan\u021b\u0103rii. De aceast\u0103 dat\u0103, suma a fost de 2,9 milioane de lire sterline, iar printre investitori s-au num\u0103rat nu doar companii de venture capital, ci \u0219i fondul Cambridge (Cambridge Enterprise). Acum, discu\u021bia nu mai era despre \u00eembun\u0103t\u0103\u021birea tehnologiilor. Scopul investi\u021biilor era deschiderea unei platforme de produc\u021bie pentru \u00eenceperea fabric\u0103rii dispozitivelor bazate pe grafen. Planificau s\u0103 \u00eenceap\u0103 cu senzori super-sensibili pentru c\u00e2mp magnetic \u0219i alte senzori destina\u021bi pie\u021bei de mas\u0103.<\/p>\n

Dup\u0103 aproape un an, \u00een martie 2019, a fost f\u0103cut un anun\u021b c\u0103 totul este deja preg\u0103tit \u0219i stabilit. Practic, \u00een c\u00e2teva luni, dispozitivele bazate pe grafen ar urma s\u0103 fie produse \u00een mas\u0103, s\u0103 ajung\u0103 pe pia\u021b\u0103 \u0219i s\u0103 \u00eenceap\u0103 o nou\u0103 er\u0103. Aceast\u0103 veste a fost una zv\u00e2cnitoare, iar cu termenele stabilite (chiar \u0219i vag) a fost primit\u0103 favorabil \u0219i a ajuns la cititorul nostru de acas\u0103.<\/p>\n

Ce a avut loc cu adev\u0103rat \u0219i ce nu s-a \u00eent\u00e2mplat dup\u0103 toat\u0103 agita\u021bia<\/h4>\n

\nCititorul prev\u0103z\u0103tor ar fi putut s\u0103 \u00ee\u0219i dea seama ce s-a petrecut dup\u0103 at\u00e2ta agita\u021bie \u0219i aten\u021bie din partea presei. Celorla\u021bi le voi sugera. Paragraf a \u00eenchis \u00eenc\u0103 un tur de finan\u021bare<\/a><\/noindex> de la acelea\u0219i fonduri de investi\u021bii, av\u00e2nd deja la dispozi\u021bie 12,8 milioane de lire sterline. Totu\u0219i, acest lucru s-a \u00eent\u00e2mplat \u00een iulie 2019, la patru luni dup\u0103 agita\u021bie. \u00cen aceea\u0219i lun\u0103, startup-ul (pe c\u00e2t se poate numi startup o companie de 4 ani) a fost premiat<\/a><\/noindex> cu 0,5 milioane de lire sterline pentru dezvolt\u0103rile inovatoare.<\/p>\n

Ceea ce nu s-a \u00eent\u00e2mplat \u00een aceast\u0103 perioad\u0103 este revolu\u021bia promis\u0103 \u0219i \u00eenceputul produc\u021biei de mas\u0103. Au trecut deja 8 luni \u0219i jum\u0103tate de la promisiunea de a \u00eencepe produc\u021bia de mas\u0103 a produselor \u00een termen de 2-3 luni, dar senzorii \u0219i dispozitivele anun\u021bate (cu o sensibilitate de 30 de ori mai mare dec\u00e2t cele utilizate) nu au ajuns pe pia\u021b\u0103.<\/p>\n

Primele 5 pagini de c\u0103utare Google \u0219i tab-ul \u201e\u0218tiri\u201d ofer\u0103 doar declara\u021bii ini\u021biale zgomotoase despre preg\u0103tirea de a \u00eencepe produc\u021bia comercial\u0103 a dispozitivelor bazate pe grafen \u00een \u201ec\u00e2teva luni\u201d de la martie 2019, precum \u0219i \u0219tirile din iulie despre ob\u021binerea de investi\u021bii \u00een valoare de 12,8 milioane de lire sterling.<\/p>\n

Niciun fel de informa\u021bii despre lansarea real\u0103 a vreunei produc\u021bii sau livr\u0103ri de componente pentru un produc\u0103tor extern nu pot fi g\u0103site. Mai mult, site-ul companiei a \u00eencetat s\u0103 func\u021bioneze, de\u0219i \u00een septembrie \u00eenc\u0103 se f\u0103ceau referiri la acesta \u00een media.<\/p>\n

Starea actual\u0103<\/h4>\n

\nCompania a primit finan\u021bare \u00eencep\u00e2nd din 2017 de cel pu\u021bin \u00a319,2 milioane (1,6 miliarde de ruble la cursul actual). \u00cen septembrie 2019, echipa companiei includea 25 de cercet\u0103tori (\u00een martie erau 16), iar, conform spuselor fondatorului, ace\u0219tia continu\u0103 s\u0103 dezvolte \u0219i se preg\u0103tesc s\u0103 demareze produc\u021bia de senzori miraculo\u0219i de c\u00e2mp magnetic \u0219i al\u021bi senzori. \u00cen septembrie se \u00eencheie ultimele \u0219tiri despre ei. Site<\/a><\/noindex> nu mai func\u021bioneaz\u0103 (upd.<\/b> disponibil prin vpn).<\/p>\n

Publicitate<\/h4>\n

\n\u00centre timp, undeva se str\u00e2ng noi investi\u021bii \u00een baterii revolu\u021bionare, conductori, senzori \u0219i alte dispozitive<\/a><\/noindex>, v\u0103 oferim o reducere la ceva care deja aduce beneficii. Mi-au trebuit c\u00e2teva ore pentru analiza surselor \u0219i preg\u0103tirea materialului, plus pu\u021bin noroc, c\u00e2nd am dat peste o \u0219tire, am salvat-o \u0219i m-am g\u00e2ndit la ea \u00een momentul potrivit. Dar toate acestea pot fi realizate de un computer \u00een fundal, ceea ce deja folose\u0219te un num\u0103r mare de organiza\u021bii \u0219i grupuri analitice. Al\u0103tura\u021bi-v\u0103!<\/p>\n

\"Grafenul<\/p>\n

Cartea \u201eData mining. Extrac\u021bia de informa\u021bii din Facebook, Twitter, LinkedIn, Instagram, GitHub<\/a><\/noindex>\u00bb<\/h4>\n

\n\u00cen ad\u00e2ncurile re\u021belelor sociale populare \u2014 Twitter, Facebook, LinkedIn \u0219i Instagram \u2014 se ascund resurse uria\u0219e de informa\u021bii. Din aceast\u0103 carte, cercet\u0103torii, anali\u0219tii \u0219i dezvoltatorii vor \u00eenv\u0103\u021ba cum s\u0103 extrag\u0103 aceste date unice folosind cod Python, Jupyter Notebook sau containere Docker. La \u00eenceput, ve\u021bi face cuno\u0219tin\u021b\u0103 cu func\u021bionalit\u0103\u021bile celor mai populare re\u021bele sociale (Twitter, Facebook, LinkedIn, Instagram), site-uri web, bloguri \u0219i fluxuri, email \u0219i GitHub. Apoi, ve\u021bi \u00eencepe analiza datelor folosind Twitter ca exemplu.<\/p>\n

\u00bb Pute\u021bi g\u0103si mai multe detalii despre carte pe site-ul editurii<\/a><\/noindex>
\n\u00bb Cuprins<\/a><\/noindex>
\n\u00bb Fragment<\/a><\/noindex><\/p>\n

Pentru utilizatorii Habr, discount de 25% cu codul \u2014 Data Mining<\/b><\/p>\n

\"Grafenul <\/p>\n

Cartea \u201eIntroducere \u00een PyTorch: \u00eenv\u0103\u021bare profund\u0103 \u00een procesarea limbajului natural<\/a><\/noindex>\u00bb<\/h4>\n

\nProcesarea textelor \u00een limbaj natural (Natural Language Processing, NLP) este o sarcin\u0103 extrem de important\u0103 \u00een domeniul inteligen\u021bei artificiale. Implementarea cu succes permite realizarea unor produse precum Alexa de la Amazon \u0219i Google Translate. Aceast\u0103 carte v\u0103 va ajuta s\u0103 \u00eenv\u0103\u021ba\u021bi PyTorch \u2014 biblioteca de \u00eenv\u0103\u021bare profund\u0103 pentru Python \u2014 unul dintre cele mai importante instrumente pentru data scientists \u0219i dezvoltatori de software care se ocup\u0103 cu NLP. Delip Rao \u0219i Brian McMahon v\u0103 vor introduce \u00een domeniul NLP \u0219i al algoritmilor de \u00eenv\u0103\u021bare profund\u0103. Iar ei v\u0103 vor ar\u0103ta cum PyTorch permite implementarea aplica\u021biilor care utilizeaz\u0103 analiza textului.<\/p>\n

\u00bb Pute\u021bi g\u0103si mai multe detalii despre carte pe site-ul editurii<\/a><\/noindex>
\n\u00bb Cuprins<\/a><\/noindex>
\n\u00bb Fragment<\/a><\/noindex><\/p>\n

Pentru utilizatorii Habr, discount de 25% cu codul \u2014 PyTorch<\/b>.<\/p>\n

Dup\u0103 plata versiunii tip\u0103rite a c\u0103r\u021bii, se va trimite o carte electronic\u0103 pe e-mail.
\n
Sursa: habr.com<\/a><\/p>","protected":false,"gt_translate_keys":[{"key":"rendered","format":"html"}]},"excerpt":{"rendered":"

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