Kev puas tsuaj ua rau cov pob zeb sib tsoo thiab ua kom sib npaug, tab sis qhov kev sib tsoo puas txo cov pob zeb loj los yog puas yog cov pob zeb me me yooj yim dua yooj yim dua? Ua ntej, abrasion ua rau pob zeb puag ncig. Tom qab ntawd, tsuas yog thaum lub pob zeb du, puas ua puas ua rau nws me me hauv txoj kab uas hla
Plaub caug feem pua HCl yog hu ua "fuming" hydrochloric acid vim nws cov evaporation siab heev. Vim nws tus cwj pwm corrosive, EPA tau cais HCl ntawm qhov ntau ntawm 37% thiab siab dua li cov tshuaj lom. Mucous daim nyias nyias, daim tawv nqaij, thiab qhov muag yog tag nrho cov raug rau qhov corrosion
Coevolution txhais. Nyob rau hauv cov ntsiab lus ntawm evolutionary biology, coevolution yog hais txog cov evolution ntawm tsawg kawg yog ob hom, uas tshwm sim nyob rau hauv ib tug sib sib zog nqus yam. Ib qho piv txwv yog coevolution ntawm flowering nroj tsuag thiab txuam pollinators (piv txwv li, muv, noog, thiab lwm yam kab)
Hauv kev ua lej, Cartesian coordinate system yog qhov kev sib koom ua ke siv los tso cov ntsiab lus ntawm lub dav hlau siv ob tus lej, feem ntau hu ua x-coordinate thiab y-coordinate. Txhawm rau tso cov kev sib koom ua ke, ob txoj kab sib txuas, hu ua axes (Singular: axis), raug kos
Neon compounds. Cov tebchaw ntawm cov pa roj neon tau ntseeg tias tsis muaj nyob, tab sis tam sim no paub tias yog molecular ions uas muaj neon, nrog rau ib ntus zoo siab neon-muaj cov molecules hu ua excimers
1 Teb. Tsis yog, txoj cai yog tshwj xeeb rau kev faib khoom ib txwm thiab yuav tsum tsis txhob siv rau kev faib khoom tsis zoo, skewed lossis lwm yam. Xav txog piv txwv li kev faib khoom sib xws ntawm [0,1]
Tephra. Tag nrho cov fragmental volcanic ejecta, uas yog tsim thaum lub sij hawm tawg volcanism, xws li tshauv, cinders, lapilli, scoriae, pumice, foob pob, thiab lwm yam. Ib lub sij hawm laus rau cov pob zeb loj, nplua-grained igneous pob zeb xws li lava ntws, uas tau tawg mus rau hauv cov khoom sib xws
Incomplete dominance yog ib daim ntawv ntawm cov qub txeeg qub teg hauv nruab nrab uas ib qho allele rau ib qho tshwj xeeb tsis qhia tag nrho nws cov khub allele. Qhov no tshwm sim nyob rau hauv ib tug thib peb phenotype nyob rau hauv uas qhia lub cev zoo yog ib tug ua ke ntawm cov phenotypes ntawm ob alleles
Ib txhia astronomers ntseeg hais tias ib tug yog vim li cas lub ntiaj teb no nyob yog hais tias lub ntiajteb txawj nqus ntawm Jupiter pab tiv thaiv peb los ntawm ib co comets. Jupiter lub ntiajteb txawj nqus tau xav tias yuav sling feem ntau ntawm cov pob dej khov sai sai no tawm ntawm lub hnub ci ua ntej lawv tuaj yeem mus ze rau lub ntiaj teb
Muab koj pab neeg ib qho chaw txuas ntxiv tsim, tso tawm, thiab ua neej nyob xa koj cov Ionic apps. Web Saib lub zog web apps ntawm cov khoom siv ib txwm muaj. Lub Web Saib yog cia li muab rau cov apps ua ke nrog Capacitor. Lub plugin yog muab los ntawm lub neej ntawd thaum siv Ionic CLI
Nyob rau hauv biology, ib qho kev sim yog lub plhaub tawv ntawm qee cov tsiaj nyeg marine, tshwj xeeb tshaj yog hiav txwv urchins thiab cov kab mob xws li testate foraminiferans, radiolarians, thiab testate amoebae. Lub sij hawm kuj tseem siv tau los npog cov kab kab
Nplooj ntsuab thiab hauv paus zaub - carrots, turnips, parsnips, radishes thiab beets - yog cov kev xaiv zoo tshaj plaws rau high-altitude, luv-season vaj
Ib qho zoo tagnrho P ntawm lub nplhaib sib txuas R yog qhov tseem ceeb yog tias nws muaj ob yam khoom nram qab no: Yog tias a thiab b yog ob lub ntsiab lus ntawm R xws li lawv cov khoom ab isan element ntawm P, ces a yog P lossis b yog P, P tsis yog tag nrho lub nplhaib R
Thaum cov protein no, thermogenin, ua haujlwm, mitochondria tsim cov cua sov ntau dua li ATP. Tus tsim cov tswv cuab ntawm tsev neeg, thermogenin, tau raug hloov npe hu ua uncoupling protein 1 lossis UCP1 thiab paub tias yog ib qho tseem ceeb hauv kev pab tsiaj kom sov thaum hibernation thiab rau cov menyuam mos kom tswj lawv lub cev kub
Piv txwv li, qhov kub ntawm dej kub ntawm hiav txwv theem yog 100 ° C yog ib qho kev soj ntsuam ntau. Cov txiaj ntsig ntawm cov lej: Tag nrho cov txiaj ntsig ntawm kev soj ntsuam ntau yog tus lej. Siv ntau yam twj paj nruag: Cov cuab yeej xws li cov kav dej, ntsuas kub, ntsuas ntsuas thiab lwm yam yog siv rau kev soj ntsuam kom muaj nuj nqis
Biological anthropologists nrhiav cov ntaub ntawv thiab piav qhia txog tus qauv ntawm kev sib txawv ntawm cov neeg muaj sia nyob niaj hnub no, taug qab qhov kev hloov pauv ntawm peb cov kab mob los ntawm lub sijhawm nyob rau hauv cov ntaub ntawv fossil, thiab muab kev sib piv rau tib neeg qhov tshwj xeeb los ntawm kev tso peb cov tsiaj nyob rau hauv cov ntsiab lus ntawm lwm yam nyob
Qhov no yog hu ua Markovnikov's Rule. Vim hais tias HBr ntxiv rau 'txoj kev tsis ncaj ncees nyob ib puag ncig' nyob rau hauv lub xub ntiag ntawm cov organic peroxides, qhov no feem ntau hu ua cov nyhuv peroxide lossis anti-Markovnikov ntxiv. Thaum tsis muaj peroxides, hydrogen bromide ntxiv rau propene ntawm ib qho kev sib ntxiv ntawm electrophilic
Cov kev cuam tshuam ntawm Calvin lub voj voog ntxiv cov pa roj carbon (los ntawm cov pa roj carbon dioxide hauv cov cua) mus rau ib qho yooj yim tsib-carbon molecule hu ua RuBP. Cov tshuaj tiv thaiv no siv tshuaj lom neeg lub zog los ntawm NADPH thiab ATP uas tau tsim nyob rau hauv lub teeb pom kev zoo. Cov khoom kawg ntawm Calvin lub voj voog yog qabzib
Print density yog qhov ntsuas ntawm lub teeb pom kev tawm ntawm lub substrate, los yog qhov tsaus nti cov luam tawm tshwm tom qab txhua qhov kev tawm tsam. Thaum ntsia lub ntsiab txhais ntawm sau ceev nws yog ib qho yooj yim mus saib yuav ua li cas cov ntaub ntawv uas tuaj rau hauv ncaj qha kev sib cuag nrog lub printing nto ua si ib qho tseem ceeb heev luag hauj lwm nyob rau hauv luam ceev zoo
Population dynamics yog kev kawm txog yuav ua li cas thiab yog vim li cas cov pej xeem hloov nyob rau hauv loj thiab qauv nyob rau hauv lub sij hawm. Cov yam tseem ceeb hauv cov pej xeem muaj zog muaj xws li tus nqi ntawm kev yug me nyuam, kev tuag thiab kev tsiv teb tsaws chaw
Cov txheej ntawm lub ntiaj teb Atmosphere. Cov txheej ntawm cov huab cua: troposphere, stratosphere, mesosphere thiab thermosphere. Lub ntiaj teb huab cua muaj ntau txheej txheej, txhua tus muaj nws tus kheej tshwj xeeb. Txav mus los ntawm theem av, cov khaubncaws sab nraud povtseg yog hu ua troposphere, stratosphere, mesosphere, thermosphere thiab exosphere
Lub logarithmic qhia yog ib qho kev qhia uas muaj logarithms hauv nws. Txhawm rau condense logarithmic expressions txhais tau hais tias siv cov cai logarithm kom txo cov logarithm kev nthuav qhia los ntawm daim ntawv nthuav mus rau ib daim ntawv condensed. Kev paub txog kev cai logarithm / cov khoom yuav yog qhov tseem ceeb hauv kev sib txuas lus logarithm
Osmosis: Hauv osmosis, dej ib txwm txav los ntawm thaj tsam ntawm cov dej siab dua mus rau ib qho ntawm cov concentration qis dua. Nyob rau hauv daim duab qhia, lub solute tsis tuaj yeem dhau los ntawm cov xim permeable, tab sis cov dej tuaj yeem. Dej muaj ib tug concentration gradient nyob rau hauv no system
DNA replication cov kauj ruam. Muaj peb kauj ruam tseem ceeb rau DNA replication: pib, elongation, thiab txiav. Txhawm rau kom haum rau hauv lub cell lub nucleus, DNA tau ntim rau hauv cov txheej txheem nruj heev hu ua chromatin, uas loosens ua ntej rov ua dua, tso cai rau lub xov tooj ntawm tes replication tshuab nkag mus rau DNA strands
Lub teeb taub hau txuas nrog hauv series thaum lub teeb taillights nyob rau hauv series-parallelconnection. Tshawb xyuas lwm yam khoom, uas siv cov kev sib txuas sib txawv hauv koj lub tsheb. Tiag tiag nws tsis yog tsuas yog confined tolights; lwm lub tsheb uas yuav tsum tau muaj hluav taws xob lossis lub zog muaj kev sib txuas hauv cov kev sib txuas tau hais
Mineral Streak Streak yog xim ntawm cov ntxhia thaum itis crushed rau hmoov. Txoj hauv kev yooj yim tshaj plaws los txiav txim siab cov pob zeb hauv av yog txhawm rau txhawm rau txhawm rau txhawm rau txhawm rau txhawm rau txhawm rau txhawm rau txhawm rau txhawm rau txhawm rau txhawm rau txhawm rau txhawm rau txhawm rau txhawm rau txhawm rau txhawm rau txhawm rau txhawm rau txhawm rau txhawm rau txhawm rau txhawm rau txhawm rau txhawm rau txhawm rau txhawm rau txhawm rau txhawm rau txhawm rau txhawm rau txhawm rau txhawm rau txhawm rau txhawm rau txhawm rau txhawm rau txhawm rau txhawm rau txhawm rau txhawm rau txhawm rau t
Cov ntaub ntawv fossil Fossil seem tau pom nyob rau hauv pob zeb ntawm txhua lub hnub nyoog. Cov pob txha ntawm cov kab mob uas yooj yim tshaj plaws yog pom nyob rau hauv cov pob zeb qub tshaj plaws, thiab cov pob txha ntawm cov kab mob ntau dua hauv cov pob zeb tshiab. Qhov no txhawb nqa Darwin txoj kev xav ntawm evolution, uas hais tias cov ntaub ntawv yooj yim ntawm lub neej maj mam hloov mus rau ntau qhov nyuaj
Feem ntau ntawm cov kauj ruam ntawm kev ua pa ntawm tes muaj nyob rau hauv mitochondria. Oxygen thiab qabzib yog ob qho tib si reactants hauv cov txheej txheem ntawm kev ua pa ntawm tes. Cov khoom tseem ceeb ntawm kev ua pa ntawm tes yog ATP; Cov khoom pov tseg muaj xws li carbon dioxide thiab dej
Atoms tsis yog CREATED lossis DESTROYED thaum muaj tshuaj tiv thaiv. Cov kws tshawb fawb paub tias yuav tsum muaj tib tus lej ntawm atoms ntawm txhua SIDE ntawm EQUATION. Txhawm rau sib npaug ntawm cov tshuaj sib npaug, koj yuav tsum ntxiv COEFFICIENTS nyob rau hauv pem hauv ntej ntawm cov qauv tshuaj hauv qhov sib npaug. Koj tsis tuaj yeem ntxiv lossis hloov cov ntawv sau npe
Lub kaum sab xis ntawm hnub ci hluav taws xob thiab kub. Lub kaum sab xis ntawm cov hluav taws xob hnub ci tuaj cuam tshuam rau lub caij ntuj sov ntawm qhov chaw ntawm qhov sib txawv latitudes. Thaum lub hnub rays tawm tsam lub ntiaj teb qhov chaw nyob ze ntawm txoj kab nruab nrab, lub hnub ci hluav taws xob tuaj yeem ncaj qha dua (ze li ntawm lub kaum sab xis lossis ze dua rau lub kaum sab xis 90˚)
Hloov hauv lub zog sab hauv ntawm cov pa roj ntawm qhov ntim tas li. Raws li thawj txoj cai ntawm thermodynamics, u = q + w, qhov twg koj hloov pauv hauv lub zog sab hauv, q yog cov cua sov liberated thiab w yog cov haujlwm ua tiav hauv cov txheej txheem. Tam sim no ntawm qhov ntim tas li, w = 0, li no u = q
Ntoo thiab tsob ntoo: ib txwm nyob rau teb chaws Aas Kiv Acer campestre ( teb maple) Betula pendula (silver birch) Corylus avellana (hazel) Ilex aquifolium (holly) Sorbus aucuparia (rowan)
Catalysts yog cov khoom uas ua hauj lwm los ua kom ceev ntawm qhov kev tshwm sim tshwm sim. Lawv ua kom tus nqi ntawm cov tshuaj tiv thaiv los ntawm kev txo qis zog. Ib qho enzyme yog ib qho piv txwv zoo ntawm cov catalyst thiab lawv ua raws li cov txheej txheem hu ua 'xauv thiab qhov tseem ceeb', qhov twg cov tshuaj yog cov yuam sij thiab cov enzymes yog cov xauv
Kev daws teeb meem tsis kawg. Thawj yog thaum peb muaj dab tsi hu ua infinite solutions. Qhov no tshwm sim thaum txhua tus lej yog kev daws teeb meem. Qhov xwm txheej no txhais tau hais tias tsis muaj ib qho kev daws teeb meem. Qhov sib npaug 2x + 3 = x + x + 3 yog ib qho piv txwv ntawm ib qho kev sib npaug uas muaj ntau yam kev daws teeb meem
Kev nyab xeeb hauv ntiaj teb feem ntau muab faib ua tsib cheeb tsam loj: chaw kub thiab txias, qhuav, nruab nrab-latitude, siab latitude, thiab highland. Cov cheeb tsam tau muab faib ua cov cheeb tsam me me uas tau piav qhia hauv qab no. Huab cua ntub dej muaj nyob hauv Central thiab South America nrog rau Africa thiab Southeast Asia
Pure Substance: Cov tshuaj uas tsis muaj kev sib xyaw ua ke thiab tsuas muaj ib hom particle xwb yog cov tshuaj dawb huv. Piv txwv ntawm cov khoom ntshiab muaj xws li hlau, txhuas, nyiaj, thiab kub
Lub viscosities ntawm magmas nce nrog nce feem pua ntawm silica. Kev tawg ntawm Hawaii volcanoes tej zaum yuav piav raws li tawg nyob rau hauv piv rau 1980 Mount St. Helens eruption. Basaltic lavas feem ntau yog kub dua thiab khov dua li andesite lavas
Six Sigma chav kawm tsis yog kev tshawb fawb foob pob hluav taws thiab tsis nyuaj rau cov neeg los ntawm keeb kwm tsis zoo. Txhua tus thiab txhua tus los ntawm ntau haiv neeg (uas suav nrog kev kho mob ib yam nkaus) tuaj yeem tau txais kev paub hauv Six Sigma cov cuab yeej thiab siv lawv rau kev txhim kho tag nrho hauv lawv thaj chaw ua haujlwm
Cov tshuaj tiv thaiv tshuaj yog nyob rau hauv qhov sib npaug thaum cov concentrations ntawm reactants thiab cov khoom yog tas li - lawv qhov piv tsis txawv. Lwm txoj hauv kev ntawm kev txheeb xyuas qhov sib npaug yog hais tias lub kaw lus nyob rau hauv qhov sib npaug thaum cov kev cuam tshuam rau pem hauv ntej thiab rov qab tshwm sim ntawm qhov sib npaug
Lwm txoj hauv kev los sau cov qauv kom raug rau ib qho ionic compound yog siv txoj kev crisscross. Hauv txoj kev no, tus lej tus nqi ntawm txhua tus nqi ion raug hla dhau los ua tus lej ntawm lwm ion. Cov cim qhia ntawm cov nqi raug poob. Sau cov qauv rau txhuas (IV) oxide