Koj tuaj yeem tsim cov yam ntxwv siv lub dav hlau nruab nrab. Nias thiab tuav tus yuam sij M thiab txav tus taw tes. Tshawb nrhiav 'Tsim Ncua Kev Siv Midplane' hauv SOLIDWORKS Knowledge Base
Tus neeg saib xyuas lub cev yog ib lo lus uas siv los piav txog lub zog, qhov tshwm sim uas muaj ntau txaus thiab lub sijhawm yuav ua rau muaj mob lossis raug mob rau tib neeg kev noj qab haus huv. Cov neeg ua haujlwm lub cev muaj xws li suab nrov, ionizing lossis tsis-ionizing hluav taws xob, qhov kub thiab txias, kev vibration, hluav taws xob thiab sib nqus
Yuav luag tag nrho cov plasma daim nyias nyias muaj lub peev xwm hluav taws xob hla lawv, nrog rau sab hauv feem ntau tsis zoo nrog rau sab nraud. Hauv cov hlwb uas tsis yog excitable, thiab hauv cov hlwb excitable hauv lawv cov hauv paus ntsiab lus, lub peev xwm membrane yog tuav ntawm tus nqi ruaj khov, hu ua lub peev xwm so
Transitive verb. 1a: npog nrog lossis zoo li nrog cov ntawv tshaj tawm. b: tso rau hauv qhov chaw pej xeem. 2: tshaj tawm los ntawm lossis zoo li los ntawm kev tshaj tawm
Nyob rau hauv daim ntawv sib npaug, angular acceleration yog qhia raws li nram no: α=ΔωΔt α = Δ ω Δ t, qhov twg Δω yog qhov hloov pauv ntawm qhov nrawm nrawm thiab Δ t yog qhov hloov pauv ntawm lub sijhawm. Cov units ntawm angular acceleration yog (rad/s)/s, los yog rad/s2
Koj tuaj yeem txhais tau ib pab pawg los ntxiv qhov loj me ntawm cov ntaub ntawv rau ib daim ntawv tshaj tawm. Piv txwv li, hauv kab ntawv kab lus uas qhia txog kev muag khoom los ntawm cov khoom lag luam, koj tuaj yeem ntxiv ib pab pawg los tso saib kev muag khoom los ntawm xyoo rau txhua yam khoom. Series pawg cov ntawv sau tau muab tso rau hauv cov lus dab neeg ntawm daim duab. Series pawg yog dynamic
Millikan roj-poob sim, thawj qhov ncaj qha thiab kev ntsuas ntawm cov nqi hluav taws xob ntawm ib qho hluav taws xob. Millikan tau ntsuas ob qho tib si ntawm qhov hluav taws xob quab yuam thiab qhov loj ntawm qhov hluav taws xob ntawm qhov me me ntawm cov roj tso tawm thiab los ntawm cov ntaub ntawv txiav txim siab qhov loj ntawm tus nqi nws tus kheej
TSEEM CEEB: Feem ntau temperate, deciduous (nplooj-shedding) hav zoov nyob rau sab hnub tuaj United States, Canada, Europe, Tuam Tshoj, Nyiv, thiab ib feem ntawm Russia
Ib qho atom yog qhov tsawg tshaj plaws ntawm txhua lub caij uas tseem khaws cov yam ntxwv ntawm lub caij ntawd. Ib daim ntawm ib lub caij uas peb tuaj yeem pom lossis kov yog ua los ntawm ntau, ntau atoms thiab tag nrho cov atoms yog tib yam lawv txhua tus muaj tib tus naj npawb ntawm protons
Kab ntawm kev xav. • ib txoj kab nruab nrab ntawm ib yam dab tsi, hu ua daim duab ua ntej, thiab nws daim iav tsom iav
Kev sib tsoo zoo yog txhais tau tias yog ib qho uas cov molecules sib tsoo nrog lub zog txaus thiab kev taw qhia kom raug, kom muaj qhov tshwm sim
Nws txhais tau tias koj coj ib tug matrix, cia nws ua rau ib tug vector, thiab nws rov qab cov vector nrog ib tug scalar tooj nyob rau hauv pem hauv ntej
Hydrogen yog thawj lub hauv paus ntawm lub rooj sib tham, nrog qhov nruab nrab atomic loj ntawm 1.00794
Txawm hais tias nucleic acids yog ib qho tseem ceeb macromolecule, lawv tsis nyob rau hauv cov zaub mov pyramid los yog ntawm cov khoom noj khoom haus. Qhov no yog vim lawv nyob rau hauv txhua yam peb noj uas ib zaug nyob thiab noj cov nyob los yog ib zaug muaj sia nyob tsis hloov ib yam ntawm peb genetic ntaub ntawv los yog tej zaum yuav pab tau los yog ua mob rau peb nyob rau hauv ib qho kev tshwm sim
Ni-58 muaj atomic tooj ntawm 28 thiab ib tug loj tus naj npawb ntawm 58. Yog li ntawd, Ni-58 yuav muaj 28 protons, 28 electrons, thiab 58-28, los yog 30, neutrons.Ni-60 2+ hom, tus naj npawb ntawm Protons zoo ib yam li hauv nruab nrab Ni-58
Txhua lub teeb pom kev nkag mus rau qhov chaw, feem ntau lub teeb xov tooj cua nkag mus rau qhov chaw, thiab qee qhov IR teeb hla dhau qhov chaw. Hauv qhov sib piv, peb cov huab cua thaiv feem ntau lub teeb ultraviolet (UV) thiab tag nrho cov X-rays thiab gamma-rays los ntawm kev ncav cuag lub ntiaj teb
Lub tshuab hluav taws kub, uas feem ntau hu ua dab ntxwg nyoog hluav taws, yog cua daj cua dub uas tshwm sim los ntawm hluav taws thiab feem ntau (tsawg kawg ib nrab) muaj nplaim taws lossis tshauv. Cov no pib nrog cua ntsawj ntshab, feem ntau pom los ntawm cov pa luam yeeb, thiab tej zaum yuav tshwm sim thaum kub nce siab thiab cua daj cua dub ua ke los ua ib qho kev sib tw ntawm huab cua
Cov algorithm suav nrog cov kauj ruam hauv qab no: Tsim cov kab zauv sib txawv G(x,y,y′) = 0 rau tsev neeg ntawm curves g(x,y) = C. Hloov y′ nrog (−1y′) hauv qhov sib npaug sib txawv. Kev daws qhov sib txawv tshiab los txiav txim siab qhov sib npaug ntawm algebraic ntawm tsev neeg ntawm orthogonal trajectories f (x, y) = C
Chemistry yog kev kawm txog cov teeb meem, nws cov khoom, yuav ua li cas thiab yog vim li cas cov tshuaj sib xyaw los yog cais los ua lwm yam tshuaj, thiab cov tshuaj cuam tshuam nrog lub zog li cas. Kev nkag siab txog cov ntsiab lus chemistry yog qhov tseem ceeb rau yuav luag txhua txoj haujlwm. Chemistry yog ib feem ntawm txhua yam hauv peb lub neej
CHEMISTRY GLOSSARY Hooke txoj cai hais tias lub cev deformation yog proportional rau qhov loj ntawm deforming quab yuam, muab hais tias lub cev elasticity (saib elasticity) tsis tshaj. Yog tias qhov txwv tsis pub ncav cuag, lub cev yuav rov qab mus rau nws qhov qub qub thaum lub zog raug tshem tawm
Cov cores yog denser tshaj huab cua sab nrauv, yog li lawv tawg ua ntej. Raws li cov cores vau lawv tawg mus rau hauv clumps nyob ib ncig ntawm 0.1 parsecs loj thiab 10 mus rau 50 hnub ci huab hwm coj hauv huab hwm coj. Cov clumps no ces tsim rau hauv protostars thiab tag nrho cov txheej txheem yuav siv li 10 lab xyoo
ATP ua haujlwm raws li lub zog txiaj rau cov hlwb. Cov qauv ntawm ATP yog ntawm RNA nucleotide nrog peb phosphates txuas. Raws li ATP siv rau lub zog, ib pab pawg phosphate los yog ob leeg raug tshem tawm, thiab ADP lossis AMP yog tsim. Lub zog muab los ntawm cov piam thaj catabolism yog siv los hloov ADP rau hauv ATP
Thaum qhov ntev ntawm txoj hlua hloov, nws yuav vibrate nrog ntau zaus. Cov hlua luv luv muaj ntau zaus thiab yog li lub suab ntau dua. Cov hlua tuab nrog cov kab loj loj vibrate qeeb dua thiab muaj cov zaus qis dua li nyias nyias
Deoxyribonucleic acid (DNA) yog ib qho loj molecule uas muaj nucleotides (phosphate + qab zib + lub hauv paus) qhov twg cov suab thaj yog ' nruab nrab' ntawm nucleotide. Lub 'deoxyribo' hauv lub npe yog muab los ntawm cov piam thaj ntawm DNA. Phosphates thiab qab zib tsim tawm sab nraud ntawm cov molecule thaum lub hauv paus ua rau lub hauv paus
Nutrigenomics tseem nrhiav kev los muab kev nkag siab txog molecular ntawm cov tshuaj lom neeg hauv cov khoom noj muaj feem cuam tshuam rau kev noj qab haus huv los ntawm kev hloov pauv ntawm cov noob thiab cov qauv ntawm tus neeg lub genome. Lub hauv paus ntsiab lus nutrigenomics yog qhov cuam tshuam ntawm kev noj haus ntawm kev noj qab haus huv nyob ntawm tus neeg lub caj ces pleev
Cov lus teb ntawm tes rau kev hloov pauv hauv lawv ib puag ncig, xws li cov zej zog microbial lossis ntau cov kab mob eukaryotic, yog ib qho kev sib tw loj hauv kev tshawb fawb lom neeg. Cov lus teb no suav nrog cov txheej txheem dynamic uas cuam tshuam nrog kev sib txuas, sib dhos, thiab kev hloov pauv ntawm cov tshuab ntawm tes
Yam uas cuam tshuam rau tus nqi Rf yog:-• Lub cev hnyav thiab nws muaj pes tsawg leeg. Kub. Qhov zoo ntawm daim ntawv. Kev ncua deb uas cov kuab tshuaj khiav
Nyob rau hauv cov cheeb tsam uas cov phiaj los ua ke, qee zaum volcanoes yuav tsim. Lub roob hluav taws kuj tuaj yeem tsim nyob rau hauv nruab nrab ntawm lub phaj, qhov twg magma nce siab mus txog thaum nws tawg rau ntawm ntug dej hiav txwv, ntawm qhov hu ua "qhov chaw kub." Cov Hawaii Islands tuaj tau tsim los ntawm qhov chaw kub no tshwm sim hauv nruab nrab ntawm Pacific Phaj
Volvox tsis muaj teeb meem rau tib neeg, (lawv tsis muaj co toxins ua rau koj mob), tab sis lawv tsim algae blooms uas tuaj yeem ua mob rau lub ecosystem
Ntxiv dej rau cov kua qaub los yog lub hauv paus yuav hloov nws cov pH. Dej feem ntau yog cov dej molecules yog li ntxiv dej rau hauv cov kua qaub los yog hauv paus txo cov concentration ntawm ions hauv cov tshuaj. Ib yam li ntawd, thaum alkali diluted nrog dej, qhov concentration ntawm OH - ions txo
Couch Ntsuas Qhov siab: los ntawm hauv pem teb mus rau sab saum toj ntawm lub nraub qaum cushions. Dav: los ntawm sab xub ntiag ntawm caj npab mus rau sab nraub qaum. Qhov tob: los ntawm pem hauv ntej ntawm lub rooj zaum cushions mus rau sab nraum qab. Diagonal Depth: ntsuas diagonally hla qhov dav, los ntawm lub hauv qab rov qab ces kaum mus rau sab saum toj pem hauv ntej ntawm caj npab
Ib hom hluav taws xob yog lub zog ntshiab uas tsis muaj qhov hnyav. Daim ntawv hluav taws xob no - hu ua hluav taws xob hluav taws xob - zoo li vibrating lossis pulsating rays lossis 'yoj' ntawm hluav taws xob thiab hluav taws xob sib nqus. Daim ntawv tsis tshua paub txog hluav taws xob no suav nrog alpha hais, beta hais, thiab neutrons, raws li tau piav qhia hauv qab no
Spatial peev xwm los yog visuo-spatial muaj peev xwm yog lub peev xwm to taub, laj thawj, thiab nco ntsoov qhov kev sib raug zoo ntawm cov khoom lossis qhov chaw. Visual-spatial peev xwm yog siv rau txhua hnub siv los ntawm kev taw qhia, kev nkag siab lossis kho cov cuab yeej, kev nkag siab lossis kwv yees qhov deb thiab ntsuas, thiab ua haujlwm ntawm kev ua haujlwm
Ib qho kev ua haujlwm plaub yog ib qho ntawm daim ntawv f(x) = ax2 + bx + c, qhov twg a, b, thiab c yog cov lej uas tsis sib npaug rau xoom. Daim duab ntawm ib qho kev ua haujlwm plaub yog qhov nkhaus hu ua parabola. Parabolas tuaj yeem qhib rau sab saud lossis nqes thiab sib txawv hauv 'dav' lossis 'seepness', tab sis lawv txhua tus muaj tib lub qauv 'U'
Cov kua qaub muaj zog yog txhais los ntawm lawv cov pKa. Cov kua qaub yuav tsum muaj zog hauv cov kua dej ntau dua li hydronium ion, yog li nws cov pKa yuav tsum qis dua li ntawm hydronium ion. Yog li ntawd, muaj zog acids muaj pKa ntawm <-174
Ib txoj haujlwm linear yog ib txoj haujlwm nrog tus qauv y = mx + b, qhov m yog txoj kab nqes thiab b yog y-intercept, thiab nws daim duab zoo li ib txoj kab ncaj nraim. Muaj lwm txoj haujlwm uas nws daim duab tsis yog txoj kab ncaj nraim. Cov haujlwm no yog hu ua nonlinear functions thiab lawv tuaj nyob rau hauv ntau hom sib txawv
Kw = [H3O+][OH-] = [H+][OH-] = 1.001x10-14 (at 25 oC, Kw is temperature dependent) (Sing [H3O+] is sib npaug rau siv [H+].) Qhov sib npaug tsis tu ncua, Kw, yog hu ua dissociation tas li los yog ionization tas li ntawm dej
4 block Ib yam li ntawd, 4 blocks ntawm lub rooj zaum yog dab tsi? Teb thiab piav qhia: Lub daim ntawv qhia hnub muab faib ua plaub blocks uas hu ua s, p, d, thiab f. Qhov thib ob, yog vim li cas lub sij hawm lub sij hawm faib ua blocks?
Rigel los yog Beta Orionis (Bet Ori) yog lub hnub qub ci ntsa iab tshaj plaws ntawm lub hnub qub Orion. Nrog rau qhov pom tseeb ntawm 0.18v, Rigel yog lub hnub qub 7th ci ntsa iab tshaj plaws nyob rau saum ntuj (saib: 50 Lub Hnub Qub Brightest ). Nws qhov loj kawg nkaus yog -6.69 thiab nws qhov kev ncua deb yog 773 lub teeb xyoo
Cov ntsiab lus ntawm Grignard reagent .: ib qho ntawm ntau lub tebchaw ntawm magnesium nrog cov organic radical thiab halogen (raws li ethyl-magnesium iodide C2H5MgI) uas tuaj yeem nkag siab (xws li dej, cawv, amines, acids) hauv cov tshuaj tiv thaiv Grignard