Monday, August 22, 2011

Dietary Reference Intake (DRI)

The current Dietary Reference Intake recommendation is composed of:

  • Estimated Average Requirements (EAR), expected to satisfy the needs of 50% of the people in that age group based on a review of the scientific literature.
  • Recommended Dietary Allowances (RDA), the daily dietary intake level of a nutrient considered sufficient by the Food and Nutrition Board to meet the requirements of nearly all (97–98%) healthy individuals in each life-stage and gender group. It is calculated based on the EAR and is usually approximately 20% higher than the EAR (See "Calculating the RDA", below).
  • Adequate Intake (AI), where no RDA has been established, but the amount established is somewhat less firmly believed to be adequate for everyone in the demographic group.
  • Tolerable upper intake levels (UL), to caution against excessive intake of nutrients (like vitamin A) that can be harmful in large amounts. This is the highest level of daily consumption that current data have shown to cause no side effects in humans when used indefinitely without medical supervision.

The RDA is used to determine the Recommended Daily Value (RDV) which is printed on food labels in the U.S. and Canada.


Reference Daily Intake

Food and Nutrition Information Center / Dietary Guidance / Dietary Reference Intakes

Vitamin and Mineral Recommendations
Historical Comparison of RDIs, RDAs and DRIs, 1968 to Present for Vitamins:
1968 RDA -> RDI (highest RDA) + DRV (Daily Reference Values) = DV (Daily Values)
1974 RDA, 1980 RDA, 1989 RDA
1997 DRI (EAR -> RDA, AI, UL)

FDA Daily Value

Vitamin A: 1 IU = 0.3mcg, 1 mcg = 3.33 IU
Vitamin D: 1 IU = 0.025 mcg, 1 mcg = 40 IU
Vitamin E: 1 IU = 0.666 mg, 1 mg = 1.5 IU

Wednesday, August 17, 2011

IPS 24" 1920x1200 WUXGA LCD Display

TFT Central
Flat Panels HD
TV & monitor recommendationsGraphics monitors: IPS panels, 24" 1920x1200 WUXGA
6-Bit vs. 8-Bit
xvYCC (wide gamut), 24 bit true color, Deep color
Why isn't the xvYCC color space seeing uptake for still photography?

RGB color space
CIE 1931 color space
Adobe RGB color space 1998
sRGB 1996 by HP & Microsoft, gamma of 2.2
What colorspace should my files be in?

Dell Ultrasharp U3011 10bit wide gamut WCG-CCFL
Dell Ultra Sharp U3014 10bit wide-gamut GB-LED $950

Dell UP2716D 2560x1440 PremierColor
Dell U2715H 2560x1440 Premium Panel narrow bazel
Dell P2715Q 3840x2160 Premium Panel

ASUS PA246Q 6bit 2010
HP ZR24W 8bit 2010 -$325
NEC PA241W 10bit 2010 $700
*Dell U2410 8bit+A-FRC 2009 -$250-$345
Dell U2413 8bit + Frame Rate Control 2013 $400
Dell U2412M 6bit 2011 LED -$280
NEC MultiSync LCD2490WUXi 6bit 2009 $300?
HP LP2475W 2008 8bit $280-$450
Hazro HZ24W 2007 8bit

Digital Versus Product Face-Offs U2410 vs U2412M

Sunday, August 07, 2011

OBD II Code P0171 and P0174 Fuel System Too Lean

RepairPal OBD II Code P0171 and P0174 Fuel System Too Lean