* HMAC ( K, C ) = SHA1 ( K ⊕ 0x5c5c … ∥ SHA1 ( K ⊕ 0x3636 … ∥ C )) be an HMAC calculated with the SHA-1 cryptographic hash algorithm

: HOTP ( K, C ) = Truncate ( HMAC ( K, C )) & 0x7FFFFFFF

For example, one might assume the same security that HMAC provides could be achieved with MAC = H ( key ∥ message ).

No known extensions attacks have been found against the current HMAC specification which is defined as H ( key1 ∥ H ( key2 ∥ message )) because the outer application of the hash function masks the intermediate result of the internal hash.

Other significant properties are high specific heat ( 1925 J · kg < sup >− 1 </ sup >· K < sup >− 1 </ sup >) and thermal conductivity ( 216 W · m < sup >− 1 </ sup >· K < sup >− 1 </ sup >), which make beryllium the metal with the best heat dissipation characteristics per unit weight.

where the index i denotes the ith species, c is the concentration ( mol / m < sup > 3 </ sub >), R is the universal gas constant ( J /( K mol )), T is the absolute temperature ( K ), and μ is the chemical potential ( J / mol ).

If G = GL < sub >*</ sub >( K ), then the set of natural numbers is a proper subset of G < sub > 0 </ sub >, since for each natural number n, there is a corresponding identity matrix of dimension n. G ( m, n ) is empty unless m = n, in which case it is the set of all nxn invertible matrices.

Harry Nyquist's 1924 paper, Certain Factors Affecting Telegraph Speed, contains a theoretical section quantifying " intelligence " and the " line speed " at which it can be transmitted by a communication system, giving the relation, where W is the speed of transmission of intelligence, m is the number of different voltage levels to choose from at each time step, and K is a constant.

A lower bound for the required energy is the kinetic energy K = ½ mv < sup > 2 </ sup > where m is the final mass.

With a relatively high thermal conductivity of 149 W · m < sup >− 1 </ sup >· K < sup >− 1 </ sup >, silicon conducts heat well and as a result is not often used to insulate hot objects.

In Russia, State Standard GOST 2939-63 sets the following standard conditions: 25 ° C ( 298. 15 K ), 760 mmHg ( 101325 N / m < sup > 2 </ sup >) and zero humidity.

In contrast, a gradient of 1 K / m becomes 0. 001 K / mm – a covariant change in value.

N m, and the total spring constant of the array K

The Sun's photosphere has a temperature between 4500 and 6000 K ( with an effective temperature of 5777 K ) and a density of about 2 kg / m < sup > 3 </ sup >; other stars may have hotter or cooler photospheres.

Indium antimonide, an example of a high mobility semiconductor, could have an electron mobility above 4 m < sup > 2 </ sup >· V < sup >− 1 </ sup >· s < sup >− 1 </ sup > at 300 K. So in a 0. 25 T field, for example the magnetoresistance increase would be 100 %.

* ' is the Stefan-Boltzmann constant — approximately 5. 67 × 10 < sup >− 8 </ sup > J · K < sup >− 4 </ sup >· m < sup >− 2 </ sup >· s < sup >− 1 </ sup >

The absolute temperature of the gas ( in kelvin ) and k < sub > 2 </ sub > ( in m < sup > 3 </ sup >· K < sup >− 1 </ sup >) is the constant produced.

SI units of thermal inertia are J · m < sup >− 2 </ sup >· K < sup >− 1 </ sup >· s < sup >− 1 / 2 </ sup >, also occasionally referred to as Kieffers, or more rarely, tiu.

To do this, Moseley measured the wavelengths of the innermost photon transitions ( K and L lines ) produced by the elements from aluminum ( Z = 13 ) to gold ( Z = 79 ) used as a series of movable anodic targets inside an x-ray tube.

At temperatures near 0 K, nearly all molecular motion ceases and, when entropy = S, ΔS = 0 for any adiabatic process.

If a is algebraic over K, then K, the set of all polynomials in a with coefficients in K, is not only a ring but a field: an algebraic extension of K which has finite degree over K. In the special case where K = Q is the field of rational numbers, Q is an example of an algebraic number field.

If X is a Banach space and K is the underlying field ( either the real or the complex numbers ), then K is itself a Banach space ( using the absolute value as norm ) and we can define the continuous dual space as X ′ = B ( X, K ), the space of continuous linear maps into K.

These two styles ( K = 1024 and truncation ) were used loosely around the same time, sometimes by the same company.

Eddington's proposed solution to the perceived problem was to modify relativistic mechanics so as to make the law P = K < sub > 1 </ sub > ρ < sup > 5 / 3 </ sup > universally applicable, even for large ρ.

where r = radius of gyration of cross-section which is equal to the square root of ( I / A ), K = ratio of the longest half sine wave to the actual column length, and KL

= in: K. Brown ( ed.

One reason for the popularity of the dissociation constant in biochemistry and pharmacology is that in the frequently encountered case where x = y = 1, K < sub > d </ sub > has a simple physical interpretation: when = K < sub > d </ sub >, = or equivalently /(+)= 1 / 2.

The numerical value of K < sub > a </ sub > is equal to the concentration of the products divided by the concentration of the reactants, where the reactant is the acid ( HA ) and the products are the conjugate base and H < sup >+</ sup >.

* K. Bremer, M. H. G. Gustafsson ( 1997 ).

| Note ( category: variability ): || H and K emission vary.

* CERA — Component ERA: an estimate of a pitcher's ERA based upon the individual components of his statistical line ( K, H, 2B, 3B, HR, BB, HBP )

J. K. Starley ( nephew of James Starley ), J. H. Lawson, and Shergold solved this problem by introducing the chain drive ( originated by the unsuccessful " bicyclette " of Englishman Henry Lawson ), connecting the frame-mounted cranks to the rear wheel.

The 21 consonant letters in the English alphabet are B, C, D, F, G, H, J, K, L, M, N, P, Q, R, S, T, V, X, Z, and usually W and Y: The letter Y stands for the consonant in " yoke ", the vowel in " myth " and the vowel in " funny ", and " yummy " for both consonant and vowel, for examples ; W almost always represents a consonant except in rare words ( mostly loanwords from Welsh ) like " crwth " " cwm ".

For the Sun and stars with low temperatures, the prominence of the H and K lines can be an indication of strong magnetic activity in the chromosphere.

Carabiners are marked on the side with single letters showing their intended area of use, for example, K ( via ferrata ), B ( base ), and H ( for belaying with an Italian or Munter hitch ).

The H & K MP7 fires an even smaller 4. 6 mm round with ballistics similar to the. 22 WMR derived. 17 Hornady Magnum Rimfire.

This results in constitutive cAMP production, which in turn leads to secretion of H < sub > 2 </ sub > O, Na < sup >+</ sup >, K < sup >+</ sup >, Cl < sup >−</ sup >, and HCO < sub > 3 </ sub >< sup >−</ sup > into the lumen of the small intestine and rapid dehydration.

Pages 549 – 561 in Proceedings XVth International Ornithological Congress ( K H Voous, Ed ) E J Brill, Leiden, The Netherlands.

Fenrir appears in modern literature in the poem " Om Fenrisulven og Tyr " ( 1819 ) by Adam Gottlob Oehlenschläger ( collected in Nordens Guder ), the novel Der Fenriswolf by K. H. Strobl, and Til kamp mod dødbideriet ( 1974 ) by E. K. Reich and E. Larsen.

Given two groups G and H and a group homomorphism f: G → H, let K be a normal subgroup in G and φ the natural surjective homomorphism G → G / K ( where G / K is a quotient group ).

If K is a subset of ker ( f ) then there exists a unique homomorphism h: G / K → H such that f = h φ.

: 6 KNO < sub > 3 </ sub > + C < sub > 7 </ sub > H < sub > 8 </ sub > O → 3 K < sub > 2 </ sub > CO < sub > 3 </ sub > + 4 CO < sub > 2 </ sub > + 2 H < sub > 2 </ sub > O + 3 N < sub > 2 </ sub >

: 4 KNO < sub > 3 </ sub > + C < sub > 7 </ sub > H < sub > 4 </ sub > O + 2 S —> 2 K < sub > 2 </ sub > S + 4 CO < sub > 2 </ sub > + 3 CO + 2 H < sub > 2 </ sub > O + 2 N < sub > 2 </ sub >