Iindaba
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I-niobium isetyenziswa njenge-catalyst kwi-fuel cell
IBrazil lelona lizwe likhulu ngokuvelisa i-niobium kwaye ibambe malunga nama-98 ekhulwini ovimba okhoyo emhlabeni. Le element yekhemikhali isetyenziswa kwiialloys zetsimbi, ngakumbi intsimbi ephezulu, kwaye kuluhlu oluphantse lungenasiphelo lwezicelo zobuchwepheshe obuphezulu ukusuka kwiiselfowuni ukuya kwiinjini zenqwelomoya. ...Funda ngokugqithisileyo -
Ukusuka kwi-cobalt ukuya kwi-tungsten: indlela iimoto zombane kunye nee-smartphones ezibangela ngayo uhlobo olutsha lokubaleka kwegolide
Yintoni kwizinto zakho? Uninzi lwethu alucingi nokucinga ngezinto ezenza ubomi banamhlanje bubekho. Nangona kunjalo ubugcisa obufana neefowuni ze-smart phone, izithuthi zombane, iiTV ezinkulu zesikrini kunye nesizukulwana samandla aluhlaza sixhomekeke kuluhlu lwezinto zekhemikhali abantu abaninzi abangazange beve ngazo. Kude kube sekupheleni...Funda ngokugqithisileyo -
Amagqabi einjini eyomeleleyo aneesilikhi zemolybdenum
Abaphandi kwiYunivesithi yaseKyoto baye bafumanisa ukuba i-molybdenum silicides inokuphucula ukusebenza kakuhle kwee-blades ze-turbine kwiinkqubo zokutsha zobushushu obuphezulu. Iiinjini zegesi zii-injini ezenza umbane kwimizi-mveliso yamandla. Amaqondo obushushu okusebenza kweenkqubo zabo zokutsha angadlula ...Funda ngokugqithisileyo -
Ubuchule obulula bokuvelisa ubunzima be-ultrathin, imolybdenum trioxide nanosheets ekumgangatho ophezulu
I-Molybdenum trioxide (i-MoO3) inamandla njengento ebalulekileyo ye-dimensional (2-D), kodwa ukuveliswa kwayo ngobuninzi kuye kwasala emva kwabanye kwiklasi yayo. Ngoku, abaphandi kwi-A * STAR baye baphuhlisa indlela elula yokuvelisa i-ultrathin, i-MoO3 nanosheets ephezulu. Ilandela idiski...Funda ngokugqithisileyo -
Uphando lubonelela ngomgaqo omtsha wokuyila ii-catalysts zokwahlulwa kwamanzi
Iingcali zenzululwazi kudala zisazi ukuba iplatinam yeyona nto iphambili yokwahlula iimolekyuli zamanzi ukuvelisa igesi yehydrogen. Uphononongo olutsha olwenziwe ngabaphandi beYunivesithi yaseBrown lubonisa ukuba kutheni iplatinam isebenza kakuhle-kwaye ayisosizathu esicingelwayo. Uphando, olupapashwe kwi-ACS Catalysi...Funda ngokugqithisileyo -
Ukuguqula kunye nokudibanisa i-chromium-tungsten powders ukwenza iintsimbi ezomeleleyo
Ingxubevange entsha ye-tungsten ephuhliswayo kwiQela le-Schuh e-MIT inokuthi ithathe indawo ye-uranium ephelelweyo kwiiprojectiles zokugqobhoza izixhobo. Unyaka wesine wezixhobo zesayensi kunye nomfundi ophumelele isidanga sobunjineli uZachary C. Cordero usebenza kwizinto ezinobutyhefu obuphantsi, amandla aphezulu, ezixinanana kakhulu ukuze kubuyiselwe ...Funda ngokugqithisileyo -
Ukungcola kuhamba njani kwi-tungsten
Enye inxalenye yesixhobo sokufunxa (i-plasma ejongene nezixhobo) yesixhobo sokulinga ukudibanisa kunye ne-reactor yokudibanisa yexesha elizayo idibana neplasma. Xa i-plasma ion ingena kwizinto eziphathekayo, ezo ngqungquthela ziba yi-athomu engathathi hlangothi kwaye zihlala ngaphakathi kwezinto. Ukuba ibonwa kwiiathom ezidibanisayo...Funda ngokugqithisileyo -
Imarike yeTungsten yaseTshayina yokuJonga iphantsi koxinzelelo kwimfuno yeLukewarm
Imakethi ye-tungsten yaseTshayina iphantsi koxinzelelo ukusukela ekupheleni kuka-Okthobha ngenxa yemfuno edikidiki evela kubasebenzisi bokugqibela emva kokuba abathengi berhoxile kwintengiso. Abanikezeli bengqwalasela bawacuthile amaxabiso abo anikezelayo ukukhuthaza ukuthenga kwimeko yokuzithemba okubuthathaka kwimarike. Amaxabiso eTungsten yaseTshayina a...Funda ngokugqithisileyo -
Ukuguqula kunye nokudibanisa i-chromium-tungsten powders ukwenza iintsimbi ezomeleleyo
Ingxubevange entsha ye-tungsten ephuhliswayo kwiQela le-Schuh e-MIT inokuthi ithathe indawo ye-uranium ephelelweyo kwiiprojectiles zokugqobhoza izixhobo. Unyaka wesine wezixhobo zesayensi kunye nomfundi ophumelele isidanga sobunjineli uZachary C. Cordero usebenza kwizinto ezinobutyhefu obuphantsi, amandla aphezulu, ezixinanana kakhulu ukuze kubuyiselwe ...Funda ngokugqithisileyo -
I-Tungsten kunye ne-titanium compounds zijika i-alkane eqhelekileyo kwezinye ii-hydrocarbons
I-catalyst esebenza kakhulu eguqula igesi yepropane ibe yi-hydrocarbons enzima iphuhliswe yi-Saudi Arabia's King Abdullah University of Science and Technology. (KAUST) abaphandi. Ikhawulezisa kakhulu ukusabela kwemichiza eyaziwa ngokuba yi-alkane metathesis, enokuthi isetyenziswe ukwenza ipro...Funda ngokugqithisileyo -
I-Brittle imathiriyeli yokuqina: I-tungsten-fibre-reinforced tungsten
I-Tungsten ifaneleke ngakumbi njengesixhobo sezinto ezicinezeleke kakhulu kwinqanawa evale iplasma eshushu ye-fusion, iyintsimbi eneyona ndawo iphezulu yokunyibilika. Noko ke, undonakele, bubunkunkqele bayo, obuthi ngenxa yoxinezeleko buyenze ibe buthathaka kwaye ibe sengozini yokonakala. Inoveli, eyomelela ngakumbi com...Funda ngokugqithisileyo -
I-Tungsten njenge-interstellar radiation shielding?
Indawo yokubilisa ye-5900 degrees Celsius kunye nobunzima obufana nedayimani ngokudibanisa nekhabhoni: i-tungsten yintsimbi enzima kakhulu, kodwa inemisebenzi ye-biological-ingakumbi kwii-microorganisms ezithanda ukushisa. Iqela elikhokelwa nguTetyana Milojevic ovela kwiFaculty of Chemistry kwiYunivesithi yaseVienna ingxelo ...Funda ngokugqithisileyo