Nearly 40 years ago, Neuman (1968) developed an analytical solution for drawdown in a system of three aquifers separated by two aquitards when one of the aquifers is pumped at a constant rate. Whereas the simpler case of two aquifers separated by one aquitard has been presented by Neuman and Witherspoon (1969a), the full five-layer solution has not been previously evaluated. We do so here using...

For a,b > 0 with a = b , let NS (a,b) denote the Neuman-Sándor mean defined by NS (a,b) = a−b 2arcsinh a−b a+b and Ap (a,b) , Lp (a,b) denote the r -order power and Lehmer means. Based on our earlier worker [27], we prove that αpAp < NS < Ap and Ap < NS βpAp holds if and only if p 4/3 and p p0 , respectively, where αp = ( 21/p−1 ) / ln(1+ √ 2) if p ∈ [1/4/3,∞), βp = ⎪⎨ ⎪⎩ NS (1,x0)/Ap (1,x0) if...

Cartier, P. & Picard, J. (1955c). Bull. Soc. Chim. biol., Pari8, 37, 1169. Dawson, J. & Jones, E. A. (1957). Int. Congr. clin. Chem., Stockholm, p. 86. Dawson, J., Weidmann, S. M. & Jones, H. G. (1957). Biochem. J. 66, 116. Engfeldt, B. & Zetterstr6m, R. (1954). Endocrinology, 54, 506. Laskin, D. M. & Engel, M. B. (1956). Arch. Path. 62, 296. Neuman, W. F. & Neuman, M. W. (1953). Chem. Rev. 53,...

S: Wang, YT, Neuman, RS and Bicgcr, D. Excitatory action of somatostatin on rat ambigual motoneurons in vitro. Soc. Ntwm.w.:i. Ab.wr. 1990, St. Louis, Missouri, USA. Neuman, RS, Wang, YT and Bicger, D. EPSPs in rat amhigual ocsophagce~l motoneurons in vitro. Soc. Neurosc:i. Abstr. 1990, St. Louis, Missouri, USA. Bieger, D, Wang, YT and Neuman, RS. GABA-mcdiatcd dcglutitivc mechanisms in the rat...

Abstract. Let p ∈ R , M be a bivariate mean, and Mp be defined by Mp(a,b) = M1/p(ap,bp) (p = 0) and M0(a,b) = limp→0 Mp(a,b) . In this paper, we prove that the sharp inequalities L2(a,b) < P(a,b) < NS1/2(a,b) < He(a,b) < A2/3(a,b) < I(a,b) < Z1/3(a,b) < Y1/2(a,b) hold for all a,b > 0 with a = b , where L(a,b) = (a− b)/(loga − logb) , P(a,b) = (a− b)/[2arcsin((a−b)/(a+b))] , NS(a,b) = (a−b)/[2ar...

It makes swept insertion and return loss measurements simultaneously, overa wide frequency range. TO THE MICROWAVE ENGINEER, an instru ment that measures insertion and return loss simultaneously, over a broad band, would be as useful as is the voltmeter to other electronic special ists, provided it is made practical in several im portant ways. • Its measurements must really refer to the micro...