Video: PHA tuaj qhov twg tuaj?
2024 Tus sau: Stanley Ellington | [email protected]. Kawg hloov kho: 2023-12-16 00:17
Polyhydroxyalkanoates los yog PHAs yog polyesters tsim los ntawm ntau yam kab mob, suav nrog los ntawm cov kab mob fermentation ntawm suab thaj lossis lipid. Thaum tsim los ntawm cov kab mob lawv ua haujlwm ua ob qho tib si lub zog thiab ua cov khw muag khoom carbon.
Tom qab ntawd, ib tus tseem tuaj yeem nug, PHA tsim tawm li cas?
PHA ntau lawm tshwm sim nyob rau hauv cov kab mob intracellular thaum cov cell tau ntsib nrog cov kev txwv tsis pub muaj txiaj ntsig zoo (piv txwv li nitrogen lossis phosphorous) thaum muaj cov pa roj carbon ntau dhau. Lawv lub luag haujlwm ntawm lub cev rau cov cell yog lub zog thiab cov khoom khaws cia carbon.
Ib qho ntxiv, puas yog PHA biodegradable? PHAs yog biodegradable , nkag yooj yim dua thermoplastics, ua los ntawm microbial fermentation ntawm carbon-based feedstocks. Cov khoom ntawm PHA polymers tuaj yeem hloov kho rau daim ntawv thov, nyob ntawm qhov tshwj xeeb ua ke ntawm cov sib txawv monomers suav nrog hauv cov saw polymer.
Hauv qhov no, PHA siv rau dab tsi?
PHA yog dav siv rau ntau yam kev siv tshuaj kho mob, suav nrog kev xa tshuaj thiab cov ntaub so ntswg engineering scaffolds, vim tias lawv zoo heev biocompatibility thiab biodegradability. Thawj thiab tshaj plaws PHA yog poly (β-hydroxybutyrate) (PHB).
PHA yuav siv sij hawm ntev npaum li cas kom decompose?
Biodegradable PHA fwj tawg hauv av tsis pub dhau 2 lub hlis (tab sis tseem nyob zoo li ntev raws li lawv tsis tau muab pov tseg).
Pom zoo:
Qhov txawv ntawm qhov muag tub ceev xwm thiab raug kaw qhov twg?
Nyob rau hauv ib tug foreclosure auction, ib tug qiv yog muag ib lub cuab tam nws repossessed, whereas nyob rau hauv ib tug tub ceev xwm muag, cov cuab yeej tau repossessed los ntawm ib tug qiv los ntawm lub tsev hais plaub txiav txim. Kalifonias ua haujlwm rau kev kaw tsis yog kev txiav txim plaub ntug uas txhais tau hais tias tus qiv nyiaj tsis xav tau lub tsev hais plaub kom txeeb thiab muag koj lub tsev
Qhov twg ntawm tsib qhov mob ntawm raug kaw yog hais txog tus neeg raug kaw qhov kev ywj pheej uas ua rau muaj kev xav ntawm kev raug kaw hauv zej zog?
Kev mob ntawm kev raug kaw: Tsib yam kev mob tshwm sim los ntawm kev raug kaw: kev ywj pheej, khoom siv thiab kev pabcuam, kev sib raug zoo ntawm kev sib deev, kev ywj pheej, thiab kev ruaj ntseg. Kev ywj pheej ntawm kev ywj pheej yog hais txog tus neeg raug kaw qhov kev poob ntawm kev ywj pheej, uas, raws li Sykes, tsim kev xav ntawm kev ua neeg tawm tsam
Qhov loj ntawm qhov loj ntawm tsob ntoo tuaj qhov twg?
Yog li ntawd qhov loj los ntawm qhov twg? Qhov loj ntawm tsob ntoo feem ntau yog carbon. Cov pa roj carbon los ntawm carbon dioxide siv thaum lub sijhawm photosynthesis. Thaum lub sij hawm photosynthesis, cov nroj tsuag hloov lub hnub lub zog mus rau hauv tshuaj zog uas yog ntes nyob rau hauv lub bonds ntawm carbon molecules ua los ntawm atmospheric carbon dioxide thiab dej
Kuv tuaj yeem yuav qhov pheej yig 5 nkas loos thoob qhov twg?
Cov neeg tau muaj kev vam meej tuaj nqa tsib nkas loos thoob pub dawb ntawm cov khw hauv qab no: Dunkin Donuts. Tim Hortons. Chick-Fi-A. Sam's Club. Wendy tus. Bakery ntawm Kroger. Bakery ntawm Walmart. Bakery ntawm Meijer
Dab tsi yog qhov txawv ntawm qhov cuam tshuam qhov (socket) thiab lub qhov (socket) pa?
Rau kuv qhov kev paub qhov sib txawv yog nqes mus rau cov khoom siv Qhov saum npoo-hardening ua rau muaj kev cuam tshuam cov qhov (socket) kom nqus tau qhov hloov pauv tam sim ntawd (aka 'kev cuam tshuam') zoo dua. Nrog rau kev cuam tshuam txaus txaus, lub qhov (socket) tsis tu ncua tuaj yeem tawm ntawm cov duab vim tias cov hlau siv muaj softer