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Measurements have been made of the pressure drop due to forced convective flow of sub-cooled water in narrow heated channels near atmospheric pressure. A correlation for the minima of these curves is presented as an aid to the prelimina...

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We describe a MAPLE implementation, MultInt, of the continuous version of the WZ method. We also give various examples of how this package can be used to systematically generate proofs of identities (or recurrences) which involve multip...

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In this paper we prove the following result about vertex list colourings, which shows that a conjecture of the first author (1999, J. Graph Theory31, 149–153) is asymptotically correct. Let G be a graph with the sets of lists S(v), s...

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The Petersen family consists of the seven graphs that can be obtained from the Petersen Graph byYΔ- andΔY-exchanges. A splitter for a family of graphs is a maximal 3-connected graph in the family. In this paper, a previously studied g...

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Ground-borne noise is one of the main causes of environmental impact from urban rail transit systems. The vibration resulting from track-train interaction is transmitted through the tunnel 3tructure and the surrounding ground to adjacen...

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For most mechanical loadings and various kinds of problems we need to know how the principal directions of the stress tensor are moving with time. The motion of the principal directions of stresses may be quite complicated and therefore...

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This paper presents a method for determining the characteristic impedance (ZL) of transmission lines embedded in reciprocal transitions. This method is based in two properties: (1) a reliable method for calculating the propagation const...

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We model platform competition in a market where products are characterized by cross network externalities. Consumers differ in their valuation of these externalities. Although the exogenous set-up is entirely symmetric, we show that pla...

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A computationally simple method for molecular excited states, namely, the Tamm–Dancoff approximation to time-dependent density functional theory, is proposed and implemented. This method Free Run 5 yields excitation energies for sever...

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Given an n × n matrix A, define the n! × n! matrix Ã, with rows and columns indexed by the permutation group Sn, with (σ, τ) entry Πni=1aτ(i), σ(i). It is shown that if A is positive semidefinite, then det A is the smallest eige...

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