Engineering, 11.04.2020 04:02, lilroach4
A dual-wavelength spectrometer uses 780 nm and 830 nm. The molar extinction coefficients for oxy- hemoglobin (HbO2) and deoxy-hemoglobin (Hb) at these two wavelengths are: e_HbO2_780nm = 710 cm 1M-1, e_Hb_780nm = 1075 cm-1M-1, e_HbO2_830nm = 974 cm-1M-1, e_Hb_830nm = 693 cm-1M-1. The spectrometer measures absorption coefficients at these two wavelengths are: Ua_780nm = 0.057 cm-", Ua_830nm = 0.063 cm-, please calculate the concentration for HbO2 and Hb (in unit of mM).
a. [HbO2] = 18.45 uM; [Hb] = 12.11 UM
b. [HbO2] = 8.45 UM; [Hb] = 22.11 UM
c. [Hb] = 8.45 uM; [HbO2] = 22.11 UM
d. [Hb] = 19.44 UM; [HbO2] = 50.85 UM
Answers: 1
Engineering, 03.07.2019 14:10, volleyballfun24
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Answers: 3
Engineering, 04.07.2019 18:10, redrosesxx
Water at 55c flows across a flat plate whose surface temperature is held constant at 95c. if the temperature gradient at the plate's surface for a given value of x is 18 c/mm, find a) local heat transfer coefficient. b) heat flux
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Which of the following refers to refers to how well the control system responds to sudden changes in the system. a)-transient regulation b)- distributed regulation c)-constant regulation d)-steady-state regulation
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Engineering, 04.07.2019 18:20, esmemaluma00
Find the minimum film thickness for a journal bearing with the data below. shaft diameter, d-50 mm, clearance ratio, cdratio? 0.001, shaft speed, n 2000 rpm; bearing length. i 200 mm; eccentricity ration, ? -0.55. ( note, cdratio-ca/d) the minimum film thickness is um
Answers: 2
A dual-wavelength spectrometer uses 780 nm and 830 nm. The molar extinction coefficients for oxy- he...
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