Rogowski coil: Difference between revisions

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'''Unary coding''', sometimes called '''thermometer code''', is an [[entropy encoding]] that represents a [[natural number]], ''n'', with ''n'' ones followed by a zero (if ''natural number'' is understood as ''non-negative integer'') or with ''n'' − 1 ones followed by a zero (if ''natural number'' is understood as ''strictly positive integer''). For example 5 is represented as 111110 or 11110. Some representations use ''n'' or ''n'' − 1 zeros followed by a one. The ones and zeros are interchangeable without loss of generality. Unary coding is both a [[Prefix-free code]] and a [[Self-synchronizing code]].
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<table border="1" cellpadding="2">
<tr><th>n (non-negative)<th>n (strictly positive)<th>Unary code<th>Alternative
<tr><td>0<td>1<td>0<td>1
<tr><td>1<td>2<td>10<td>01
<tr><td>2<td>3<td>110<td>001
<tr><td>3<td>4<td>1110<td>0001
<tr><td>4<td>5<td>11110<td>00001
<tr><td>5<td>6<td>111110<td>000001
<tr><td>6<td>7<td>1111110<td>0000001
<tr><td>7<td>8<td>11111110<td>00000001
<tr><td>8<td>9<td>111111110<td>000000001
<tr><td>9<td>10<td>1111111110<td>0000000001
</table>
 
Unary coding is an optimally efficient encoding for the following discrete [[probability distribution]]
 
:<math>\operatorname{P}(n) = 2^{-n}\,</math>
 
for <math>n=1,2,3,...</math>.
 
In symbol-by-symbol coding, it is optimal for any [[geometric distribution]]
 
:<math>\operatorname{P}(n) = (k-1)k^{-n}\,</math>
 
for which ''k'' &ge; &phi; = 1.61803398879&hellip;, the [[golden ratio]], or, more generally, for any discrete distribution for which
 
:<math>\operatorname{P}(n) \ge \operatorname{P}(n+1) + \operatorname{P}(n+2)\, </math>
 
for <math>n=1,2,3,...</math>.  Although it is the optimal symbol-by-symbol coding for such probability distributions, [[Golomb coding]] achieves better compression capability for the geometric distribution because it does not consider input symbols independently, but rather implicitly groups the inputs. For the same reason, [[arithmetic encoding]] performs better for general probability distributions, as in the last case above.
 
==Unary code in use today==
Examples of unary code uses include:
* In [[Golomb Rice code]], unary encoding is used to encode the quotient part of the Golomb code word.
* In [[UTF-8]], unary encoding is used in the leading byte of a multi-byte sequence to indicates the number of bytes in the sequence, so that the length of the sequence can be determined without examining the continuation bytes.
 
==See also==
*[[Unary numeral system]]
 
==References==
 
*Khalid Sayood, ''Data Compression'', 3rd ed, Morgan Kaufmann.
*Professor K.R Rao, EE5359:''Principles of Digital Video Coding''.
 
{{Compression Methods}}
[[Category:Coding theory]]
[[Category:Data compression]]
[[Category:Lossless compression algorithms]]

Latest revision as of 18:10, 7 November 2014

Obesity is the second name of over weight. When a individual cross the limit of fat according to his height plus age called OBESE. But definition and limit of weight is different according to age plus height. Obesity is a body disorder that results inside deform the body. However there is a differance in healthy body and obese body. A health body is in the good shape, But an obese body is deformed by different components of body like Tummy , Hips,Arms and legs.

The BMI of the individual is calculated by dividing his/her fat (pounds) by the square of his/her height (inches) and multiplying with 703. This index indicates if a person is underweight, usual, overweight or obese. After is a standard bmi chart for adults.

Strength Training: There is a great deal of info out there on lifting weights and strength training, however, bmi chart men being cautious to begin this in the "right" way is significant because we receive elder. Running Planet has completed a good job w/ laying out "The 8 rules of Strength Training". We have some good videos on our Resources page.

First he found it rather unusual, yet then he realized that it was all considering of his weight. He also realized which lately several persons had started ignoring him. As you can see, his weight problem had become a big hindrance inside his life! That was the time whenever he finally decided which he needed to get rid of fat.

Go to the link: http://www.nhlbisupport.com/bmi/ and enter a height and weight. Click the button that states Compute BMI. This can provide we that all-important BMI amount.

To a certain extent this is true, however, excess puppy fat is because dangerous to a child because excess fat is to an adult. It is estimated that over 15% of UK children bmi chart women are obese or fat, and this figure is rising fast. The Journal of the American Medical Association reported found on the 4th April which the amount of obese American kids was 33.6%. Obese youngsters grow into fat adults. They do not lose this so called puppy fat unless positive procedures are taken. They have a significantly higher risk of developing serious health difficulties , both today plus as an adult, including potentially existence threatening conditions including bowel cancer, diabetes, strokes, heart conditions and hypertension. The more overweight the child, the greater the risk.

Nonetheless, it uses the U.S. Navy Circumference Method which need the input of information for it to be capable to resolve for the body fat percentage. The readings is put into a body fat chart for the individual to be able to monitor the decrease or increase of body fat percentage.

These Television giants felt that Isagenix was thus far ahead inside their thinking and their results, plus were impressed enough to give this business the number one advertising anyone could ever obtain plus which is free advertising.