2024 Tus sau: Elizabeth Oswald | [email protected]. Kawg hloov kho: 2024-01-13 00:07
Lub tswv yim kev siv hluav taws xob yog thawj zaug los ntawm Pareto hauv xyoo 1906.
Leej twg invented ordinal utility?
Txhua qhov nkhaus sawv cev ua ke ntawm ob qho kev pabcuam lossis khoom muag. Cov neeg siv khoom txaus siab sib npaug ntawm cov khoom thiab cov kev pabcuam. Qhov deb dua qhov nkhaus yog los ntawm keeb kwm, qhov siab dua nws cov txiaj ntsig. Koj puas paub: Xyoo 1934 John Hicks thiab Roy Allen tau tsim thawj daim ntawv uas tshaj tawm txog kev siv hluav taws xob.
Leej twg thawj zaug qhia txog kev tshuaj xyuas kev siv hluav taws xob rau qhov kev xav tsis pom kev nkhaus?
"Ib qho kev tsis txaus ntseeg qhia txhua qhov sib txawv ntawm ob yam khoom uas muab qhov sib npaug ntawm kev txaus siab rau cov neeg siv khoom". Txoj kev tsom xam txoj kev tsis pom kev tsis pom kev yog thawj zaug los ntawm Slustsky, tus kws tshawb fawb Lavxias hauv xyoo 1915. Tom qab ntawd nws tau tsim los ntawm JR Hicks thiab R. G. D. Allen xyoo 1928.
Dab tsi yog lub npe hu ua kev ntsuas kev siv hluav taws xob?
Definition: Lub Ordinal Utility mus kom ze yog raws li qhov tseeb tias cov khoom siv hluav taws xob tsis tuaj yeem ntsuas hauv qhov ntau, tab sis txawm li cas los xij, nws yuav ua tau rau tus neeg siv khoom. Qhia qhov tseeb seb cov khoom puas tau txais ntau dua lossis tsawg dua lossis sib npaug txaus siab thaum piv rau lwm qhov.
leej twg yog leej txiv ntawm kev siv txoj kev xav?
2.1 Keeb Kwm Kev Txhim Kho ntawm Lub Tswv Yim ntawm Kev Siv Hluav Taws Xob
Daim duab 2.1. A. Adas Smith (1723–1790), uas thawj zaug kos qhov sib txawv ntawm "tus nqi ntawm kev siv"thiab "tus nqi hauv kev pauv." B. Jeremy Bentham (1748–1832), uas feem ntau tau lees paub tias yog "txiv" ntawm kev siv tswv yim niaj hnub no.
Pom zoo:
Puas yog kev siv hluav taws xob siv hluav taws xob?
Usability engineering yog kev qhuab qhia uas tsom mus rau kev txhim kho kev siv tau ntawm kev sib tham sib. Nws rub tawm cov kev xav los ntawm kev tshawb fawb hauv computer thiab kev puas siab puas ntsws los txhais cov teeb meem uas tshwm sim thaum siv cov kab ke.
Puas siv hluav taws xob hauv qhov hluav taws xob tuaj yeem siv rau ntawm qhov loj?
Txawm hais tias tsawg dua, lwm hom kev siv hluav taws xob hauv av tuaj yeem siv los muab ntau lub zog ntau dua. Tapping qhov chaw ntawm cov dej kub faus rau hauv qab lub ntiaj teb saum npoo tuaj yeem muab cua sov rau cov neeg coob coob, thiab tsim kom muaj zog txaus los tsim hluav taws xob loj.
Lub tshuab hluav taws xob twg siv rau kev tsheb ciav hlau hluav taws xob?
TE Connectivity's (TE) optimized VESA nqus Circuit Court breaker rau railway electrification yog thawj tag nrho electro-magnetically ua system rau 25 kV thiab 15kV tsheb. Lub tshuab hluav taws xob twg siv hauv kev tsheb ciav hlau? 2.
Puas hluav taws xob hluav taws xob puas tsim hluav taws xob?
Coal feem ntau siv roj los tsim hluav taws xobhauv Tebchaws Meskas. Hauv cov chaw tsim hluav taws xob hluav taws xob hluav taws xob, cov hluav taws xob bituminous, subbituminous thee, lossis lignite raug hlawv. Cov cua kub uas tsim los ntawm kev sib xyaw ntawm cov thee yog siv los hloov cov dej mus rau hauv qhov chaw siab zog, uas tsav lub turbine, uas tsim hluav taws xob.
Lub tshuab hluav taws xob hluav taws xob tsim hluav taws xob li cas?
Piav seb lub twj hluav taws xob hluav taws xob tsim hluav taws xob hla lub membrane li cas. Los ntawm pum electrons hla lub membrane, sab uas cov electrons raug tshem tawm muaj qhov zoo dua, thaum sab tau txais cov hluav taws xob ntau muaj qhov tsis zoo.
