Thaum cov khoom xa rov qab rau cov khoom lag luam feem ntau muaj kev faib tawm ib txwm, tus nqi Tshuag nws tus kheej feem ntau yog teev-ib txwm faib. Qhov no yog vim kev txav siab dhau los ua tsawg dua vim tias cov khoom lag luam nce mus txog xoom Cov khoom pheej yig, tseem hu ua cov khoom lag luam nyiaj npib, nthuav tawm ob peb qhov kev txav loj thiab ua tsis taus.
Puas xa rov qab log-ib txwm faib?
Yog li ntawv rov qab muaj a ib txwm faib. … Qhov rov qab los ntawm qhov Performance index - uas yog qhov hnyav nruab nrab ntawm ib tug xov tooj ntawm cov khoom muaj nqis - muaj ntau qhov laj thawj rau qhov qub.
Puas cov ntaub ntawv xa rov qab ib txwm faib?
Piv txwv li, kev xa rov qab ntawm cov ntaub ntawv uas muaj ntau qhov kev nqis peev (txhua tus uas ib txwm faib rov qab) kuj yog ib txwm faibThiab los piav txog kev nqis peev, peb tsuas yog xav tau 2 qhov tseem ceeb: qhov nruab nrab (aka qhov kev nqis peev uas xav tau rov qab los) thiab tus qauv sib txawv (a.k.a. peev qhov kev pheej hmoo).
Vim li cas peb thiaj siv log ib txwm faib?
Lognormal faib ua lub luag haujlwm tseem ceeb hauv kev tsim qauv tsim vim tias qhov tsis zoo ntawm engineering phenomena yog qee zaum lub cev ua tsis tau. Kev siv cov kev faib tawm tsis zoo muaj nyob hauv cov lus piav qhia ntawm qaug zog tsis ua haujlwm, tus nqi tsis ua haujlwm, thiab lwm yam tshwm sim uas muaj ntau yam ntaub ntawv.
Dab tsi ua rau kev faib khoom tsis raug cai?
Lognormal distributions feem ntau tshwm sim thaum muaj qhov qis qis nrog qhov sib txawv loj, thiab thaum qhov tseem ceeb tsis tuaj yeem tsawg dua xoom. Kev faib tawm ntawm cov txiaj ntsig nyoos yog li skewed, nrog rau tus Tsov tus tw txuas ntxiv zoo ib yam li tus Tsov tus tw pom nyob rau hauv nplai-dawb thiab broad-scale systems.
