Ixabiso leSaphulelo iBundor Din F4 Flanged 4 Intshi yeSango iValve yokuVeliswa kunye ne-s Ductile Iron Sluice ivelufa eneSitulo esiZimeleyo
2020-11-12
Le vidiyo isemva kwe-scenes ibonisa isixhobo esekwe nguMat Staymates, asisebenzisayo ukubonisa indlela iimaski ezinokunqanda ngayo ukusasazeka kwe-COVID-19. Ingxelo yeendaba-Washington, ngoNovemba 10, 2020-Ukuba ubona umntu ezulazula kwivenkile ethengisa ukutya okanye kwenye indawo, enxibe imask enevalve, kwaye ufuna ukwazi ukuba ikhuseleke kangakanani kuwe, ke ufanele ukuhoywa. UMatthew Staymates, injineli yoomatshini kunye ne-fluid dynamicist kwiZiko leSizwe leMigangatho kunye neTekhnoloji, ufunda iintlobo ezahlukeneyo zemaski ukufumanisa ukuba yeyiphi enokunciphisa kakhulu usulelo lwezifo. Kwi-"Fluid Physics" nguPapasho lwe-AIP, uchaze ukujonga ukuhamba okusisiseko kweemaski ze-N95 kunye okanye ngaphandle kwevalve yokuphefumla. Ukuza kuthi ga ngoku, uvelise iividiyo ezimangalisayo kwi-Schlieren imaging, indlela yokubona ukuhamba kolwelo kunye nokukhanya okusasazeka ukusuka kumphezulu wento. Ivalve yokuphefumla kwimaski ye-N95 yenzelwe ukuphucula intuthuzelo yomsebenzisi ngokunciphisa ukuxhathisa kokucoca ngexesha lokuphefumla. U-Staymates uthe: "Xa ukhupha umoya, i-flap encinci iyavulwa, ukuze umoya uphume ngaphandle kokucoca ngezinto zemaski." "Ndiyakwazi ukubonisa ngokubonakalayo umgaqo osebenzayo wevalve yokukhupha umoya, kwaye ndiwuthelekise ngaphandle kwevalve enjalo. I-N95 yathelekiswa." U-Staymates uthe uphando lwakhe lubonisa ukuba iimaski ze-N95 ezinevalvu zokuphefumla azifanelekanga ukuhluza amathontsi okuphefumla ebantwini. Uthe: "Ukuqonda kwethu okwangoku kukuba inxalenye ye-COVID-19 isasazwa ngamathontsi okuphefumla, ke ngeli xesha lo bhubhani, i-N95 enevalve ayincedi kulawulo lomthombo." Ufumanise ukuba imaski ye-N95 ngaphandle kwevalve inokuthintela ngokufanelekileyo amathontsi olwelo ukuba angangeni kumathiriyeli yemaski. U-Staymates useke ilabhoratri egqwesileyo yemozulu yonke kwindawo yakhe yokusebenza ngamaplanga ukuvavanya iintlobo ezahlukeneyo zeemaski kunye nezixhobo. Wenze inkqubo yokuphefumla eyenziweyo ukulinganisa indlela yokuphefumla yabantu bokwenyani, kwaye wenze ivavelocimitha yomoya elungiselelwe ukulinganisa igophe lakhe lokuphefumla. Wasebenzisa le datha njengomgangatho wenkqubo yokukhupha umoya. U-Staymates uthe: "Ndikwayile kwaye ndakha ijenereyitha yenkungu ngaphakathi kwentloko ye-mannequin. Ijenereyitha yenkungu ibonelela ngamathontsi afana kakhulu nalawo asasazwe ngabantu." Khupha umoya, kunye nejenereyitha yenkungu iyenza ibukeke ngathi itshaya nje icuba. "Ndiyathemba ukuba lo msebenzi uza kunceda abaphulaphuli baqonde Kwinkqubo yethu yokuphendula ngokudibeneyo kolu bhubhane lwehlabathi, iivalvu ezineemaski aziyi kunceda." UMatthew Staymates ubhale "Ukubona okuhambahambayo usebenzisa i-schlieren imaging kunye nokusasaza ukukhanya I-N95 respirators enevalve yokuphefumla nangaphandle kwayo". Iza kuvela "kwiFiziksi yeFluids" ngoNovemba 10, 2020 (DOI: 10.1063/ 5.0031996). Emva kwalo mhla, ungandwendwela https://aip.scitation.org/doi/ 10.1063/5.0031996 Fluid Physics inikezelwe kupapasho lweethiyori zokuqala, izibalo kunye negalelo lokulinga kwigesi, ulwelo kunye nolwelo oluntsonkothileyo Bona i-https://aip.scitation.org/journal/phf. 00 am Eastern Time ngoNovemba 12, 2020, iPassPass yeentatheli ziyafuneka ukuze zifikelele ezi ndaba. I-NewswisePressPass yenza ukuba iintatheli eziqinisekisiweyo zifikelele kwiindaba ezivaliweyo. Nceda ungene ukuze ugcwalise isicelo sokugqitha. Ukuba awukabhalisi, nceda ubhalise. Xa ugcwalisa ifom yobhaliso, nceda uqinisekise ukuba uyintatheli phambi kokuba ufake ifom yesicelo sokupasa kumaphephandaba. Uphononongo olwenziwa yi-UCLA Field School of Public Health yafumanisa ukuba nemaski elula ilaphu inokunciphisa ukusasazeka kwamathontsi okuphefumla e-COVID-19 ngama-77%. Kude kube lixesha lokuvalwa kwe-embargo ngoNovemba 12, 2020 iXesha eliMgangatho laseMpuma, iPassPass yentatheli iyafuneka ukufikelela kwezi ndaba. Nceda ungene ukuze ugcwalise isicelo sokugqitha. Ukuba awukabhalisi, nceda ubhalise. Xa ugcwalisa ifom yobhaliso, nceda uqinisekise ukuba uyintatheli phambi kokuba ufake ifom yesicelo sokupasa kumaphephandaba. Iziphumo zibonisa ukuba uvavanyo lokucupha olubanzi luyafuneka ukunciphisa ukusasazeka kwe-COVID-19 kwiqela emva kweenyanga ezimbini kwesinye sezibhedlele ezingama-38 eMichigan, iziphumo zezigulana ze-COVID-19 zibandakanya ukusweleka okuphezulu, ukubuyiselwa esibhedlele, ukuqhubeka komzimba kunye nengqondo. iingxaki zempilo, iingxaki imisebenzi yemihla ngemihla, kunye nomsebenzi kunye neengxaki zemali. Isiqingatha sezitofu zokugonya ziyamoshwa minyaka le ngenxa yokuba azigcinwa zibanda. I-Michigan Institute of Technology kunye ne-UMass Amherst iinjineli zemichiza ziye zafumanisa indlela yokuzinzisa intsholongwane kwisitofu sokugonya ngeprotheyini endaweni yobushushu. Abantu abaye baphola kwi-coronavirus banokuvelisa amajoni omzimba asebenzayo ngokuchasene ne-SARS-CoV-2, eya kuthi ivele kwiinyanga ezimbalwa emva kokosuleleka. Ezi zilwa-buhlungu zinokuvela ngokuphendula kwii-antigens zentsholongwane ezishiyekileyo ezifihlwe emathunjini. Abaphandi kwiziko laseKarolinska eSweden baphonononge zonke izifundo ze-COVID-19 ezakhutshwa ekuqaleni kobhubhane. Uphononongo olutsha oluvela kwi-Notre Dame luvavanye ubuntu obusebenzayo okokuqala ngqa ukuphendula kwintlekele (oko kukuthi, kwisibhedlele sase-Wuhan, e-China, kwindawo ekuqhambuke kuyo uqhambuko lwe-coronavirus, kumanqanaba okuqala obhubhani we-COVID-19). I-Newswise inika iintatheli ukufikelela kwiindaba zamva nje kwaye ibonelela ngeqonga kwiidyunivesithi, amaziko kunye neentatheli ukuba zisasaze iindaba eziphambili kubaphulaphuli bazo.