Less-than-or-equal

PARCH reads update information from formatted cards, or other input file containing card images. Input having existing component indices replace old data with those indices. Otherwise the new component data is added to the library, with the restriction that the total number of components is always less than or equal to 100. 

Commercial butane comprises mainly C4 hydrocarbons, with propane and propylene content being less than 19 volume %. The density should be equal to or greater than 0.559 kg/1 at 15°C (0.513 kg/1 at 50°C). The maximum vapor pressure should be 6.9 bar at 50°C and the end point less than or equal to 1°C. 

Sinee there is one state per unit of sueh volume, E) is also the iiumber of states with energy less than or equal to E, and is ealled the integrated density of states. The iiumber of states g E),AE with energy between E and E + E, the density of states, is the derivative of 4i ... 

HyperChem includes semi-empirical parameters for all the atoms with atomic numbers less than or equal to 54 and can perform calculations on any molecule composed of only those atoms. The few restrictions or exceptions to this rule will be pointed out as appropriate. Nevertheless, the probability of having appropriate parameters for a random calculation are much higher for semi-empirical calculations than for molecular mechanics calculations. 

HyperChem performs an empirical Huckel calculation to produce the MO coefficients for a minimal basis set and then projects these coefficients to the real basis set used in an ab initio calculation. The projected Huckel guess can be applied to molecular systems with an atomic number less than or equal to 54 (Xe). 

Thermal neutron absorption cross section. Simply designated cross section, it represents the ease with which a given nuclide can absorb a thermal neutron (energy less than or equal to 0.025 eV) and become a different nuclide. The cross section is given here in units of barns (1 barn = 10 cm ). If the mode of reaction is other than ( ,y), it is so indicated. 

Regardless of whether equation 4.19 or 4.20 is used to calculate fexp, the null hypothesis is rejected if fexp is greater than f(a, v), and retained if fexp is less than or equal to f(a, v). 

The value of fexp is then compared with a critical value, f(a, v), which is determined by the chosen significance level, a, the degrees of freedom for the sample, V, and whether the significance test is one-tailed or two-tailed. For paired data, the degrees of freedom is - 1. If fexp is greater than f(a, v), then the null hypothesis is rejected and the alternative hypothesis is accepted. If fexp is less than or equal to f(a, v), then the null hypothesis is retained, and a significant difference has not been demonstrated at the stated significance level. This is known as the paired f-test. 

If the source fingerprints, for each of n sources are known and the number of sources is less than or equal to the number of measured species (n < m), an estimate for the solution to the system of equations (3) can be obtained. If m > n, then the set of equations is overdetermined, and least-squares or linear programming techniques are used to solve for L. This is the basis of the chemical mass balance (CMB) method (20,21). If each source emits a particular species unique to it, then a very simple tracer technique can be used (5). Examples of commonly used tracers are lead and bromine from mobile sources, nickel from fuel oil, and sodium from sea salt. The condition that each source have a unique tracer species is not often met in practice. 

Thus the average cost per share for John is the arithmetic mean of pi, po,. . . , pn, whereas that for Mary is the harmonic mean of these n numbers. Since the harmonic mean is less than or equal to the arithmetic mean for any set of positive numbers and the two means are equal only i pi=po = =pn, we conclude that the average cost per share for Mary is less than that for John if two of the prices Pi are distinct. One can also give a proof based on the Gaiichy-Schwarz inequality, To this end, define the vectors... 

High/low alanns. A high alarm is generated when the value is greater than or equal to the value specified for the high-alarm limit. A low alarm is generated when the value is less than or equal to the value specified for the low-alarm limit. 

For a new produc4, the ratio of manufacturing expense to sales price Ch e/cs should be compared with the ratio of total manufacturing cost or expense to sales revenue for the company as a whole. If the ratio Ch e/cs is less than or equal to the ratio for the company, then the proposed sales price appears to be reasonable and the product is probably commerci ly viable. This comparison is, of course, used only as an approximate guide in preliminary assessments. 

As discussed later, the reaction-enhancement factor ( ) will be large for all extremely fast pseudo-first-order reac tions and will be large tor extremely fast second-order irreversible reaction systems in which there is a sufficiently large excess of liquid-phase reagent. When the rate of an extremely fast second-order irreversible reaction system A -t-VB produc ts is limited by the availabihty of the liquid-phase reagent B, then the reac tion-enhancement factor may be estimated by the formula ( ) = 1 -t- B /VCj. In systems for which this formula is applicable, it can be shown that the interface concentration yj will be equal to zero whenever the ratio k yV/k B is less than or equal to unity. 

PM10, particulates with aerodynamic diameter less than or equal to 10 microns) 24 h 260 ig/m 150 ig/m ... 

CFR Part 51 (Appendix M) State implementation plans Method 201A Particulate matter of less than or equal to 10 ig (PM 10)... 

Explosions are either deflagrations or detonations. The difference depends on the speed of the shock wave emanating from the explosion. If the pressure wave moves at a speed less than or equal to the speed of sound in the unreacted medium, it is a deflagration if it moves faster than the speed of sound, the explosion is a detonation. 

If the group has a value greater than or equal to 2.5, then the dense gas release is considered continuous. If the group value is less than or equal to 0.6, then the release is considered instantaneous. If the value... 

Refactory ceramic fibres or special purpose fibres, with the exception of those specified elsewhere in the Approved Supply List (man-made vitreous (silicate) fibres with random orientation with alkaline oxide and alkali earth oxide (Na20 + K2O + CaO + MgO + BaO) content less than or equal to 18% by weight)... 

---