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  2. 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 ...

  3. 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.

  4. 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 ...

  5. 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.

  6. IEC 61508 - Wikipedia

    en.wikipedia.org/wiki/IEC_61508

    IEC 61508 is an international standard published by the International Electrotechnical Commission (IEC) consisting of methods on how to apply, design, deploy and maintain automatic protection systems called safety-related systems.

  7. 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 ...

  8. Power over Ethernet - Wikipedia

    en.wikipedia.org/wiki/Power_over_Ethernet

    Power over Ethernet. In this configuration, an Ethernet connection includes Power over Ethernet (PoE) (gray cable looping below), and a PoE splitter provides a separate data cable (gray, looping above) and power cable (black, also looping above) for a wireless access point (WAP). The splitter is the silver and black box in the middle between ...

  9. Standard error - Wikipedia

    en.wikipedia.org/wiki/Standard_error

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