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  2. List of EIA standards - Wikipedia

    en.wikipedia.org/wiki/List_of_EIA_standards

    Signal standard for non-broadcast high resolution monochrome video. EIA-343A Formerly RS-343 A. Video signal standard for high resolution monochrome CCTV. Based on EIA-343. EIA-364-38 TP-38D Cable Pull-Out Test Procedure for Electrical Connectors. EIA-370-B Designation System for Semiconductor Devices.

  3. List of guitar tunings - Wikipedia

    en.wikipedia.org/wiki/List_of_guitar_tunings

    Standard – E-A-d-g-b The standard tuning, without the top E string attached. Alternative variants are easy from this tuning, but because several chords inherently omit the lowest string, it may leave some chords relatively thin or incomplete with the top string missing (the D chord, for instance, must be fretted 5-4-3-2-3 to include F#, the ...

  4. E/A ratio - Wikipedia

    en.wikipedia.org/wiki/E/A_ratio

    E/A ratio. The E/A ratio is a marker of the function of the left ventricle of the heart. It represents the ratio of peak velocity blood flow from left ventricular relaxation in early diastole (the E wave) to peak velocity flow in late diastole caused by atrial contraction (the A wave). [1] It is calculated using Doppler echocardiography, an ...

  5. Phase I environmental site assessment - Wikipedia

    en.wikipedia.org/wiki/Phase_I_environmental_site...

    The most recent standard is "Standards and Practices for All Appropriate Inquiries" 40 Code of Federal Regulations, Section 312 [1] which drew heavily from ASTM E1527-13, which is the ASTM Standard for conducting 'All Appropriate Inquiry' (AAI) for the environmental assessment of a real property. Previous guidances regarding the ASTM E1527 ...

  6. Analog high-definition television - Wikipedia

    en.wikipedia.org/wiki/Analog_high-definition...

    Japan had the earliest working HDTV system, with design efforts going back to 1979. The country began broadcasting wideband analog high-definition video signals in the late 1980s using an interlaced resolution of 1035 or 1080-lines active (1035i) and 1125-lines total supported by the Sony HDVS line of equipment.

  7. Corporate average fuel economy - Wikipedia

    en.wikipedia.org/wiki/Corporate_average_fuel_economy

    The program covered model year 2012 to model year 2016 and ultimately required an average fuel economy standard of 35.5 miles per US gallon (6.63 L/100 km; 42.6 mpg ‑imp) in 2016 (of 39 miles per gallon for cars and 30 mpg for trucks), a jump from the 2009 average for all vehicles of 25 miles per gallon.

  8. B tuning - Wikipedia

    en.wikipedia.org/wiki/B_tuning

    B tuning. B Tuning or B Standard Tuning is the standard tuning for a seven string guitar, where the strings are tuned B-E-A-D-G-B-E. B tuning can also be achieved on a six-string guitar, when the strings are tuned B-E-A-D-F♯-B, known then as Baritone Tuning. This tuning is popular among several different types of metal bands.

  9. Academic grading in the United States - Wikipedia

    en.wikipedia.org/wiki/Academic_grading_in_the...

    v. t. e. In the United States, academic grading commonly takes on the form of five, six or seven letter grades. Traditionally, the grades are A+, A, A−, B+, B, B−, C+, C, C−, D+, D, D− and F, with A+ being the highest and F being lowest. In some cases, grades can also be numerical. Numeric-to-letter-grade conversions generally vary from ...