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Unyango lwamanzi
Kukho iindlela ezintathu zokunyanga amanzi: unyango lomzimba, unyango lwekhemikhali, kunye nonyango lwamanzi lwebhayoloji. Indlela abantu abawaphatha ngayo amanzi ibikho iminyaka emininzi. Iindlela zenyama ziquka: izixhobo zokucoca zidsorb okanye zithintele ukungcola emanzini, preci...Funda ngokugqithisileyo -
Umahluko phakathi kwe:UVA UVB UVC UVD
Ukukhanya kwelanga liza le-electromagnetic, elahlulwe kukukhanya okubonakalayo kunye nokukhanya okungabonakaliyo. Ukukhanya okubonakalayo kubhekisela koko kunokubonwa liliso lenyama, njengokukhanya komnyama okumibalabala esixhenxe obomvu, orenji, omthubi, oluhlaza, oluhlaza, oluhlaza, oyindigo nomfusa ekukhanyeni kwelanga; ukukhanya okungabonakaliyo kubhekisa kwi...Funda ngokugqithisileyo -
Umahluko phakathi kwe-hot cathode isibane se-UV germicidal kunye nesibane esibandayo se-UV germicidal
Umgaqo osebenzayo we-cathode eshushu yesibane se-ultraviolet germicidal: ngokufudumeza ngombane i-electron powder kwi-electrode, i-electrons ibhobhoza ii-athomu ze-mercury ngaphakathi kwityhubhu yesibane, kwaye emva koko ivelise umphunga we-mercury. Xa umphunga umekyuri utshintsha ukusuka kwindawo ephantsi...Funda ngokugqithisileyo -
UKUGUQULWA kweeYunithi zaMazwe ngaMazwe zoMlinganiso woBude
Iyunithi yobude yiyunithi esisiseko esetyenziswa ngabantu ukulinganisa ubude bezinto ezisesithubeni. Amazwe ahlukeneyo aneeyunithi ezahlukeneyo zobude. Kukho iintlobo ezininzi zeendlela zokuguqula iiyunithi zobude kwihlabathi, kubandakanya iiyunithi zobude zaseTshayina, amazwe ngamazwe...Funda ngokugqithisileyo -
Ngaba ukhethe intsimbi efanelekileyo engenasici?
Ebomini, sisebenzisa insimbi engenasici kuyo yonke indawo, ukusuka kwiibhulorho, izitimela, kunye nezindlu ukuya kwiikomityi zokusela ezincinci, iipeni, njl. Kukho izinto ezininzi zensimbi engenasici, kwaye kufuneka ukhethe insimbi engenasici ngokufanelekileyo ngokusetyenziswa kwangempela. Eli nqaku liza kuxoxa ngokweenkcukacha ...Funda ngokugqithisileyo -
Ukuba umthengi akaphenduli, kufuneka wenze ntoni?
Ngoku singene kwixesha elitsha lokurhweba nge-e-commerce, kwaye urhwebo lwangaphandle lwe-intanethi luye lwaba luphambili. Iitshaneli zentengiso zandiswa ngamaqonga e-e-commerce ukufumana abathengi abatsha ngakumbi phesheya. Nangona kunjalo, ngelixa imodeli ye-intanethi izisa lula, ikwanazo nezingeloncedo...Funda ngokugqithisileyo -
Ukuthelekiswa kwe-5 esetyenziswa ngokuqhelekileyo i-oyile yokucoca umsi
Njengoko ilizwi lihamba, "Ukutya yeyona nto ibalulekileyo ebantwini." Ukupheka kwamaShayina akukona nje ubugcisa obugqwesileyo, kodwa kwakhona kunika ingqalelo kwimvisiswano kunye nobunye bombala, ivumba, incasa, imilo kunye nobuhle bokutya. Kukho iindlela zokupheka zaseTshayina ezingama-42...Funda ngokugqithisileyo -
Ingxoxo ngokuCima isibane se-UV
I-wafer yenziwe nge-silicon ecocekileyo (Si). Ngokuqhelekileyo yahlulwe kwii-intshi ezi-6, i-8-intshi, kunye ne-12-intshi yenkcazo, i-wafer iveliswa ngokusekelwe kwesi siqhekeza. Ii-Silicon wafers ezilungiselelwe ukusuka kwi-high-purity semiconductors ngokusebenzisa iinkqubo ezinje ngokutsalwa kwekristale kunye nokusika kubizwa ngokuba ...Funda ngokugqithisileyo -
Emva "kwekhephu elinzima" kwikhalenda yenyanga, ungadla "abamhlophe abathathu" ukuze uhlale usempilweni.
NgoDisemba 7, 2023, umhla wama-24 ka-Okthobha kwikhalenda yenyanga (ikhalenda yenyanga), "likhephu elinzima" ngokwemigaqo yelanga yaseTshayina. "Ikhephu elinzima" ligama lama-21 kwangama-24 elanga kwikhalenda yenyanga kunye nekota yesithathu yelanga ebusika, ephawula ukuqala ngokusemthethweni ...Funda ngokugqithisileyo -
Ubomi obudlulileyo kunye nobukho bezibane ze-ultraviolet germicidal
Ukusukela oko i-WHO yabhengeza ngokusesikweni i-COVID-19 “njengobhubhani” wehlabathi nge-11 kaMatshi, amazwe ehlabathi ngamxhelo mnye akuthathele ingqalelo ukubulala iintsholongwane njengomgca wokuqala wokuzikhusela ukunqanda ukusasazeka kwalo bhubhani. Aya ngokwanda amaziko ophando lwezenzululwazi aye...Funda ngokugqithisileyo -
Ikhathalogu ye-pathogenic microorganisms ezithunyelwa ebantwini
Qaphela: Eli nqaku liphinde laveliswa "kuLuhlu lweMicroorganisms ezosulelayo zoMntu" oluququzelelwe nguMphathiswa wezeMpilo weRiphabhlikhi yaBantu baseTshayina, iqonga lenkonzo karhulumente edibeneyo ye-intanethi yesizwe. Oku kulandelayo kucatshulwe kumbhalo oyintloko. E ...Funda ngokugqithisileyo -
Umgangatho weSizwe woVavanyo lweendlela zeMigangatho emitsha yaseTshayina yokuSela
Icandelo 10: Izalathi zemveliso yokubulala iintsholongwane ziye zaphunyezwa Umgangatho wesizwe "Iindlela zoVavanyo eziMgangatho zaManzi okuSela - iSigaba se-10: Izalathisi zeDisinfection Byproducts" iphantsi kolawulo lwe-361 (iKomishoni yezeMpilo yeSizwe), kunye nesebe elinobuchule...Funda ngokugqithisileyo
