Unsold

Assume that a manufacturer gains a units on sold items and loses j8 units for unsold items. Also assume that the demand for y items is given by a probability distribution function f(y) with maximum... 

An attempt was made by Unsold (33) to evaluate to the second-order the interaction of a proton and a hydrogen atom. He found, neglecting the resonance phenomenon, that the second-order perturbation energy is given approximately by the expression... 

Used principally in the United States, by Wyckoff, Dickinson, etc. This, was remarked by Unsold, Dissertation, Munich, 1927. 

For corporations the same reasoning applies. To offer the prime interest rate the lender must be sure he can get his capital back plus interest. This means that the borrower s total assets must be considerably greater than the current liabilities and debts. Consider the simplified balance sheet given in Table 10-13. By current assets is meant cash and everything involved in working capital-feedstocks, unsold product, plus all the product that has been shipped but for which no payment has... 

After another few hundred million years (some astrophysicists speak of around a billion years), the temperature was around 18 K and then sank further to a value of 3 K (or to be exact, 2.73 0.01 K) (Unsold and Baschek, 2001). 

Binzel et al. (1991) give an account of the origin and the development of the asteroids, while Gehrels (1996) discusses the possibility that they may pose a threat to the Earth. The giant planets, and in particular Jupiter, caused a great proportion of the asteroids to be catapulted out of the solar system these can be found in a region well outside the solar system, which is named the Oort cloud after its discoverer, Jan Hendrik Oort (1900-1992). Hie diameter of the cloud has been estimated as around 100,000 AU (astronomic units one AU equals the distance between the Earth and the sun, i.e., 150 million kilometres), and it contains up to 1012 comets. Their total mass has been estimated to be around 50 times that of the Earth (Unsold and Baschek, 2001). 

Table 3.2 The commonness of elements (log n) in the solar system, in the sun and in carbonaceous chondrites of type Cl, with respect to hydrogen log n(H) = 12, i.e., n( ) = 1012 (Unsold and...

Unsold A, Baschek B (2001) The New Cosmos, Springer Berlin Heidelberg New York... 

Fig. 3.7. Dependence of the line absorption coefficient on distance from the line centre, for the particular case of the Na I D-lines in the outer solar atmosphere. After Unsold (1977). Copyright by Springer-Verlag New York Inc.

A form of the curve of growth more relevant to stellar (as opposed to interstellar) absorption lines is derived from work by E. A. Milne, A. S. Eddington, M. Min-naert, D. H. Menzel and A. Unsold. In the Milne-Eddington model of a stellar photosphere, the continuum source function (equated to the Planck function in the LTE approximation) increases linearly with continuum optical depth rA and there is a selective absorption i]K, in the line, where rj(Av), the ratio of selective to continuous absorption, is a constant independent of depth given by... 

This is the Menzel-Minnaert-Unsold interpolation formula (often used assuming Roo = 1). It gives a better approximation to stellar absorption-line profiles (which are definitely not flat-bottomed) than does the exponential formula the shape of the corresponding curve of growth is much the same, but its use leads to a b-parameter that is about 25 per cent higher for the same observational data. Denoting the central value of p by po, the Doppler part of the curve is given by... 

Fig. 3.21. Two-colour plot of (U-B) against (B—V). The curve shows the main sequence for stars with the metallicity of the Hyades, loci of black bodies (with temperatures marked in units of 1000 K) and a deblanketing vector illustrating schematically the effect of metal deficiency in F and G stars. Adapted from Unsold (1977).

H. N. Russell analyzes solar spectrum with theoretical transition probabilities and eye estimates of line intensities. Notes predominance of hydrogen (also deduced independently by Bengt Stromgren from stellar structure considerations) and otherwise similarity to meteorites rather than Earth s crust. M. Minnaert et al. introduce quantitative measurements of equivalent width, interpreted by the curve of growth developed by M. Minnaert, D. H. Menzel and A. Unsold. 

Bengt Stromgren and A. Unsold make quantitative analysis of solar abundances with fairly realistic model atmosphere, including H opacity source just discovered by R. Wildt. 

Unsold makes quantitative analysis of a BO star, r Sco, getting similar abundances to solar. 

F. Hillenkamp, E. Unsold, R. Kaufmann, and R. Nitsche. A High-Sensitivity Laser Microprobe Mass Analyzer. Appl. Phys., 8(1975) 341-348. 

Suppose you are a chemical distributor who wishes to optimize the inventory of a specialty chemical. You expect to sell Q barrels of this chemical over a given year at a fixed price with demand spread evenly over the year. If Q = 100,000 barrels (units) per year, you must decide on a production schedule. Unsold production is kept in inventory. To determine the optimal production schedule you must quantify those aspects of the problem that are important from a cost viewpoint [Baumol (1972)]. 

Note If you purchased this book without a cover, you should be aware that this book is stolen property. It was reported as unsold and destroyed to the... 

Using an average energy or Unsold approximation [87] an expression of the type... 

Li SM, Unsold lA, Post-genome research on the biosynthesis of ergot alkaloids. PlantMed72 n 7-n2Q, 2006. 

Unsold lA, LiSM, Overproduction, purification and characterization of FgaPT2, a dimethylallyltryptophan synthase from Aspergillus fumigatus, Microbiology... 

Robinson (1967) has used the Unsold approximation for the energy levels to express the polarizabilities in terms of the electrostatic moments of the ground-state electron distribution. The expressions have been applied to X-ray charge densities by Zyss, Baert, and coworkers (Fkyerat et al. 1995 F. Hamzaoui, F. Baert and J. Zyss, private communication). A detailed description of the derivation and the approximations involved is beyond the scope of this treatise. However, it should be mentioned that the severe approximations are made that all excited-state energy levels are equal, and that the exciting light frequency is equal to zero. 

---