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A crash test dummy, or simply dummy, is a full-scale anthropomorphic test device (ATD) that simulates the dimensions, weight proportions and articulation of the human body during a traffic collision. Dummies are used by researchers, automobile and aircraft manufacturers to predict the injuries a person might sustain in a crash. [ 1 ]
Samuel W. Alderson (October 21, 1914 – February 11, 2005) was an American inventor best known for his development of the crash test dummy, a device that, during the last half of the twentieth century, was widely used by automobile manufacturers to test the reliability of automobile seat belts and other safety protocols. [1]
Paley's method could be used to find such matrices of size N for most N equal to a multiple of 4. In particular, it worked for all such N up to 100 except N = 92. If N is a power of 2, however, the resulting design is identical to a fractional factorial design , so Plackett–Burman designs are mostly used when N is a multiple of 4 but not a ...
Resusci Anne in a storage case Rehearsing the use of an automated external defibrillator on a Resusci Anne. Resusci Anne, also known as Rescue Anne, Resusci Annie, CPR Annie, Resuscitation Annie, Little Annie, or CPR Doll is a model of medical simulator used for teaching both emergency workers and members of the general public.
Dummy variables may be extended to more complex cases. For example, seasonal effects may be captured by creating dummy variables for each of the seasons: D1=1 if the observation is for summer, and equals zero otherwise; D2=1 if and only if autumn, otherwise equals zero; D3=1 if and only if winter, otherwise equals zero; and D4=1 if and only if ...
Interaction effect of education and ideology on concern about sea level rise. In statistics, an interaction may arise when considering the relationship among three or more variables, and describes a situation in which the effect of one causal variable on an outcome depends on the state of a second causal variable (that is, when effects of the two causes are not additive).
Life-Size is a 2000 American fantasy comedy ... Banks revealed she was working on Life-Size 3. [37] In October 2022, the possible sequel was also brought up ...
If one accepts some trimming, the size is indeed one quarter of the old Imperial paper size known as Demy, 17 + 1 ⁄ 2 in × 22 + 1 ⁄ 2 in (444 mm × 572 mm). [29] Manufacturers of computer printers, however, recognize inch-based Quarto as 10 + 5 ⁄ 6 or 10.83 in (275 mm) long.