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2. Manchester code - Wikipedia

   en.wikipedia.org/wiki/Manchester_code

   Manchester coding is a special case of binary phase-shift keying (BPSK), where the data controls the phase of a square wave carrier whose frequency is the data rate. . Manchester code ensures frequent line voltage transitions, directly proportional to the clock rate; this helps clock

3. National Electrical Code - Wikipedia

   en.wikipedia.org/wiki/National_Electrical_Code

   The Deactivation and Decommissioning (D&D) customized extension of the electrical code standard defined by National Electrical Code was developed since current engineering standards and code requirements do not adequately address the unique situations arising during D&D activities at U.S. Department of Energy (DOE) facilities. The additional ...

4. One in ten rule - Wikipedia

   en.wikipedia.org/wiki/One_in_ten_rule

   A "one in 20 rule" has been suggested, indicating the need for shrinkage of regression coefficients, and a "one in 50 rule" for stepwise selection with the default p-value of 5%. [ 4 ] [ 6 ] Other studies, however, show that the one in ten rule may be too conservative as a general recommendation and that five to nine events per predictor can be ...

5. Zero-coupon bond - Wikipedia

   en.wikipedia.org/wiki/Zero-coupon_bond

   Zero coupon bonds have a duration equal to the bond's time to maturity, which makes them sensitive to any changes in the interest rates. Investment banks or dealers may separate coupons from the principal of coupon bonds, which is known as the residue, so that different investors may receive the principal and each of the coupon payments.

6. Coupon (finance) - Wikipedia

   en.wikipedia.org/wiki/Coupon_(finance)

   Coupons are normally described in terms of the "coupon rate", which is calculated by adding the sum of coupons paid per year and dividing it by the bond's face value. [2] For example, if a bond has a face value of $1,000 and a coupon rate of 5%, then it pays total coupons of $50 per year.

7. Black Friday (shopping) - Wikipedia

   en.wikipedia.org/wiki/Black_Friday_(shopping)

   Black Friday is the Friday after Thanksgiving in the United States.It traditionally marks the start of the Christmas shopping season in the United States. Many stores offer highly promoted sales at discounted prices and often open early, sometimes as early as midnight [2] or even on Thanksgiving.