Elastic muaj peev xwm lub zog yog lub zog khaws cia los ntawm kev siv lub zog los deform ib qho khoom elastic. Lub zog yog khaws cia kom txog thaum lub zog raug tshem tawm thiab cov khoom rov qab mus rau nws qhov qub, ua haujlwm hauv cov txheej txheem. Kev deformation tuaj yeem suav nrog compressing, ncab lossis twisting cov khoom
Electronics Cheebtsam: Muab cov inductors nyob rau hauv Series los yog nyob rau hauv Parallel Series inductors: Tsuas yog ntxiv tus nqi ntawm txhua tus inductor. Ob lossis ntau qhov sib npaug ntawm cov inductors: Ntxiv lawv thiab faib los ntawm tus lej ntawm inductors. Ob qho tib si thiab tsis sib npaug inductors: Siv cov qauv no:
Nucleic acids yog macromolecules uas khaws cov ntaub ntawv caj ces thiab ua kom muaj protein ntau. Nucleic acids muaj xws li DNA thiab RNA. Cov molecules no yog tsim los ntawm ntev strands ntawm nucleotides. Nucleotides yog tsim los ntawm nitrogenous puag, tsib-carbon qab zib, thiab phosphate pawg
Txhais. Domain yog lub siab tshaj plaws taxonomic rankin lub hierarchical biological faib system, saum toj no lub nceeg vaj theem. Muaj peb yam ntawm lub neej, lub Archaea, cov kab mob, thiab Eucarya
Txhua tus neeg muaj hom ntshav ABO (A, B, AB, lossis O) thiab Rh yam (zoo lossis tsis zoo). Ib yam li qhov muag lossis cov plaub hau xim, peb hom ntshav tau txais los ntawm peb niam peb txiv. Txhua leej niam leej txiv pub ib qho ntawm ob hom ABO rau lawv tus menyuam. Cov noob A thiab B yog qhov tseem ceeb thiab cov noob O yog qhov tsis zoo
Hnub yog nyob rau 3rd lossis 4th Lub Ib Hlis, nws yog hu ua perihelion. Hnub ntawd, qhov kev ncua deb ntawm lub ntiaj teb thiab lub hnub yog kwv yees li 148 km sib nrug
Cov ntiaj chaw uas nyob ib ncig ntawm lwm lub hnub qub hu ua exoplanets. Lawv muab zais los ntawm qhov ci ci ntawm cov hnub qub uas lawv ncig. Yog li, astronomers siv lwm txoj hauv kev los xyuas thiab kawm cov ntiaj chaw nyob deb. Lawv tshawb nrhiav exoplanets los ntawm kev saib cov teebmeem ntawm cov ntiaj chaw no ntawm cov hnub qub uas lawv orbit
Piv txwv ntawm Extrusive Igneous Pob Zeb Basalt. Basalt yog ib qho hlau nplua nuj, xim dub heev extrusive igneous pob zeb. Obsidian. Obsidian, tseem hu ua volcanic iav, cov ntaub ntawv thaum silica-nplua nuj magma txias yuav luag tam sim, feem ntau vim yog kev sib cuag nrog dej. Andesite. Dacite. Rhyolite. Pumice. Scoria. Komatiite
Dej yog tsim nyog rau germination. Cov noob laus feem ntau qhuav heev thiab yuav tsum tau noj cov dej ntau, txheeb ze rau qhov hnyav ntawm cov noob, ua ntej cellular metabolism thiab kev loj hlob tuaj yeem rov pib dua. Cov noob feem ntau xav tau dej txaus kom moisten cov noob tab sis tsis txaus los ntub lawv
Ib qho inverse linear kev sib raug zoo tau pom ntawm qhov kub thiab txias thiab qhov sib faib coefficient. CEEB TOOM: Nyob rau hauv ib qho kev ntsuas kub, qhov sib faib coefficients isoflurane thiab sevoflurane txo qis thaum qhov kub nce. Sevoflurane qhia tau hais tias muaj kev solubility siab hauv Oxygent (TM) piv rau isoflurane
Lawv tuaj yeem pom hauv ntau pawg ua haujlwm sib txawv, xws li aldehydes, ketones, esters, thiab ntau ntxiv. Ib pawg carbonyl tuaj yeem ua rau kom lub melting lossis boiling point ntawm lub compound. Nws tau piav raws li polar thiab reactive, thiab cov nqi tsis zoo thiab zoo ntawm carbonyl pab txhawb rau polarity
Nws tuaj yeem sib cav RuBisCO yog qhov tseem ceeb tshaj plaws enzyme vim nws yog ib qho ntawm cov enzymes ntau tshaj plaws hauv ntiaj teb. Ua los ntawm tag nrho cov nroj tsuag ntsuab, RuBisCO yog lub luag haujlwm kho cov pa roj carbon dioxide rau hauv qhov kawg ntawm qhov ua rau cov suab thaj nyuaj
Daim iav yog ib qhov chaw uas qhia txog lub teeb zoo kawg nkaus li cov khoom qub. Cov khoom feem ntau cuam tshuam lub teeb ntawm qhov sib txawv. Qhov no yog qhov tseeb dua hu ua refraction, vim hais tias cov rays ntawm lub teeb khoov thaum lawv ntaus cov khoom thiab txav mus rau ntau yam kev taw qhia. Qhov no tso cai rau peb pom cov khoom uas lawv thaws tawm ntawm
Cov haujlwm sine thiab cosine muaj lub sijhawm ntawm 2π radians thiab tangent muaj nuj nqi muaj aperiod ntawm π radians. Domain thiab ntau yam: Los ntawm graphsabove peb pom tias rau ob qho tib si sine thiab cosinefunctions tus sau yog txhua tus lej tiag thiab qhov ntau yog txhua qhov tseeb ntawm & rho tawm 1 txog +1 suav nrog
Cov kev txwv ntawm ecological pyramids yog: Cov decomposers uas yog ib feem tseem ceeb ntawm cov khoom noj khoom haus, tsis muab ib qho chaw nyob rau hauv tej theem trophic. Cov kab mob los ntawm tib hom yuav muaj nyob rau hauv ib los yog ntau tshaj trophic theem tab sis raug suav hais tias nyob rau hauv tib theem
Nyias-txheej chromatography (TLC) yog ib qho txheej txheem chromatography siv los cais cov khoom sib xyaw uas tsis yog-volatile. Tom qab cov qauv tau siv rau ntawm lub phaj, cov kuab tshuaj los yog cov kuab tshuaj sib tov (lub npe hu ua lub sijhawm txawb) yog kos rau ntawm lub phaj ntawm capillary nkaus
Discoverer: Morris Travers; WilliamRamsay
Cov ntoo Willow yog cov ntoo loj hlob sai heev ntawm cov ntoo deciduous feem ntau pom nyob ze ntawm cov kwj deg hauv qhov chaw sov, txias ntawm Eurasia thiab North America. Willow ntoo ntoo tsis tas muaj tshuaj lom rau miv thiab dev. Nws cov tawv ntoo, txawm li cas los xij, tuaj yeem muaj tshuaj lom, tshwj xeeb tshaj yog rau miv
Elastic muaj peev xwm lub zog yog khaws cia rau hauv lub caij nplooj ntoos hlav uas tau ncab los yog compressed los ntawm qhov deb x deb ntawm nws txoj hauj lwm sib npaug. Tsab ntawv k yog siv rau lub caij nplooj ntoos hlav tas li, thiab nws muaj cov units N / m. Zoo li txhua txoj haujlwm thiab lub zog, chav tsev ntawm lub zog muaj peev xwm yog Joule (J), qhov twg 1 J = 1 N∙m = 1 kg m2 / s2
Nws cuam tshuam li cas rau biofilms? Cov kab mob hlwb zais cov molecules uas tuaj yeem kuaj pom los ntawm lwm cov kab mob. Quorum sensing tso cai rau cov kab mob kom nkag siab qhov concentration ntawm cov cim qhia cov khoom siv los saib xyuas cov cell hauv zos. Cov kab mob siv quorum sensing los tswj qee tus cwj pwm, xws li biofilm ntau lawm
Ib gametophyte (/g?ˈmiːto?fa?t/) yog ib qho ntawm ob theem hloov pauv hauv lub neej voj voog ntawm cov nroj tsuag thiab algae. Nws yog ib hom kab mob haploid multicellular uas tsim los ntawm haploid spore uas muaj ib pawg chromosomes. Lub gametophyte yog theem kev sib deev hauv lub neej ntawm cov nroj tsuag thiab algae
Qee qhov chaw ntawm thaj chaw sov muaj xws li: Argentina - pampas. Australia - poob. Central North America - tiaj thiab prairies. Hungary - kev. New Zealand - poob. Russia - steppes. South Africa - Cov
Tib neeg thiab chimpanzees yuav tsum tau muab tso rau hauv tib lub genus, Homo, raws li WSU cov kws tshawb fawb hauv tsab xov xwm Tsib Hlis 19 (#2172) luam tawm hauv Kev Ua Haujlwm ntawm National Academy of Sciences. Cov kev hloov pauv hauv qhov kev txiav txim thawj zaug tau ua rau muaj kev sib cav txog kev hloov pauv
Cov grams ntsuas ntawm M2CO3 tom qab lub crucible raug hlawv ces muab faib los ntawm moles kom tau cov grams ib mol teb. Tom qab ua tiav tag nrho cov kev suav, cov molar loj rau M2CO3 ntawm 107.2 g / mol tau txais
Nws yog cais los ntawm cov roj rods uas ua tau kom muaj cua sov. Hnyav dej muaj txiaj ntsig zoo ntawm kev ua kom qeeb (moderating) neutrons, muab CANDU reactors lawv qhov tseem ceeb thiab txhais cov yam ntxwv ntawm siab 'neutron kev lag luam'
Sapro- ib daim ntawv sib txuas lub ntsiab lus "rotten," siv los tsim cov lus sib xyaw: saprogenic
Cov txiaj ntsig ntawm Raoult Txoj Cai yog tias qhov saturated vapor siab ntawm kev daws yuav qis dua li cov kuab tshuaj ntshiab ntawm qhov kub thiab txias. Qhov ntawd muaj qhov cuam tshuam tseem ceeb ntawm daim duab qhia theem ntawm cov kuab tshuaj
Xuab zeb (feem ntau silicon dioxide) tsis yog. Ncuav ntsev thiab xuab zeb sib tov rau hauv lub lauj kaub. Ntxiv dej. Kub dej kom txog thaum ntsev yaj. Tshem lub lauj kaub los ntawm tshav kub thiab cia nws txias kom txog thaum nws tsis muaj kev nyab xeeb. Ncuav dej ntsev rau hauv ib lub thawv cais. Tam sim no sau cov xuab zeb. Ncuav dej ntsev rov qab rau hauv lub lauj kaub khoob
Cov teeb meem tuaj yeem muaj nyob hauv ib ntawm peb lub xeev tseem ceeb: khoom, kua, lossis roj. Cov khoom yog tsim los ntawm cov khoom ntim nruj nreem. Ib qho khoom yuav khaws nws cov duab; cov hais tsis pub dawb txav mus los. Cov khoom ua kua yog ua los ntawm cov khoom ntim ntau dua
MAGMA COMPOSITION THIAB ROCK HOM SiO2 COV NTAUB NTAWV MAGMA HOM VOLCANIC ROCK ~ 50% Mafic Basalt ~ 60% Intermediate Andesite ~ 65% Felsic (tsawg Si) Dacite ~ 70% Felsic (siab Si) Rhyolite
Lub tshuab hluav taws xob AC yog lub tshuab hluav taws xob uas hloov cov tshuab hluav taws xob rau hauv hluav taws xob hluav taws xob nyob rau hauv daim ntawv ntawm lwm qhov emf lossis hloov tam sim no. AC generator ua haujlwm ntawm lub hauv paus ntsiab lus ntawm "Electromagnetic Induction"
Muaj 3 txoj hauv kev los thauj lub zog nyob rau hauv dav dav: Radiation: Lub zog yog nqa los ntawm photons. Convection: Lub zog nqa los ntawm cov lus tsa suab ntawm cov roj. Kev coj ua: Lub zog nqa los ntawm cov lus tsa suab
Lub npe hu ua "Muaj ntau yam xim hauv ntiaj teb" Fluorite yog cov chameleon tiag tiag ntawm lub pob zeb
Waxing tseem ceeb txhais tau tias 'loj hlob' lossis nthuav dav hauv illumination, thiab waning txhais tau tias 'shrinking' lossis txo qis hauv illumination. Lub hli yog ib nrab illuminated los ntawm lub hnub. tshwm sim thaum lub hli illumination txo, Waning Crescent
Lub Kobe av qeeg yog tshwm sim los ntawm kev ua txhaum ntawm sab hnub tuaj-sab hnub poob-poob qhov twg Eurasian thiab Philippine daim hlau cuam tshuam. Qhov av qeeg raug nqi ntau dua $ 100 nphom hauv kev puas tsuaj, thiab tsoomfwv Kobe tau siv sijhawm ntau xyoo los tsim cov chaw tshiab los txhawb 50,000 tus neeg uas tau tawm mus tom qab av qeeg
Ua Tus Kws Tshawb Fawb Hauv thawj ib nrab ntawm 1793, hnub nyoog 26, Dalton tau ua haujlwm ntawm tus kws qhia lej thiab lub tswv yim ntuj tsim ntawm Manchester's New College, lub tsev kawm ntawv tsis pom zoo. Nyob rau hauv 1794, nws sau nws thawj scientific ntawv uas nws hu ua: Extraordinary Facts ntsig txog lub zeem muag ntawm xim
Muaj ntau cov lus teb tam sim ntawd. Rau cov neeg tsis muaj tsev nyob, cov tsev so tau muab chaw nyob rau 10,000 tus neeg thiab 40,000 lub tsev pheeb suab tau muab tawm. Qee lub tsheb ciav hlau tau siv los ua chaw nyob. Tus Thawj Kav Tebchaws ntawm Ltalis, Silvio Berlusconi, tshaj tawm tias tau muab qee qhov ntawm nws lub tsev ua chaw nyob ib ntus
Teb chaws As Mes Lis Kas: lo lus 'Lub Ntuj yog xiav' txhais li cas? Nws feem ntau yog siv los ua ib qho kev qhia los txhais tau hais tias tej yam yuav mus zoo hauv lub neej, los yog yav tom ntej zoo li yuav zoo. Nws tseem tuaj yeem hais meej dua, txhais tau hais tias ib tus neeg muaj hnub zoo, lossis tias lawv tau muaj hmoo
Rov qab los ntawm qhov siab tshaj plaws ntawm kev hloov pauv ntawm qhov taw tes ntawm Kev Ua Haujlwm ntawm ntau nplooj ntawv sib txawv uas yog z = f (x, y) yog ob qhov sib txawv ntawm qhov muaj nuj nqis tiag tiag thiab yog ib chav vector ces qhov siab tshaj plaws ntawm kev hloov pauv ntawm txhua qhov taw tes $ (x, y) hauv D(f)$ yog qhov loj ntawm qhov gradient ntawm, $| abla f(x, y) |$, thiab tus nqi qis tshaj ntawm