III. A note on valency, especially as defined by helmholtz

A Note on Partitions and Compositions Defined by Inequalities

for some positive integers b1, . . . , bn. Specifically, it was shown that if C is an upper triangular matrix with all ci,i = 1, and if B = C−1 has nonnegative entries, then FC(q) is given by (2), where bj is the sum of the entries in column j of B = [bi,j ]. Moreover, it was shown that this provides a natural bijection between the “partitions” of N into parts from the multiset {b1, . . . , bn}...

A Note on Helmholtz Attenuators with Air Cavity and Membrane

In this paper, we present an analytical expression for the resonance frequency of Helmholtz attenuators with air cavity and membrane. We derive the characteristic equations based on one-dimensional isentropic acoustic models and illustrate the eeects on the resonance frequency of certain design variations. 1 INTRODUCTION The development of high speed paper machines requires a better control of ...

Richness in Architecture as Defined by Contemporary Iranian Television Series

Today, mass media act like a magic mirror, not only reflecting the reality of societies, but also projecting a variety of images onto people’s thoughts. Because of this great ability to produce, reproduce and disperse images, mass media have acquired considerable influence on people’s lives. Among the different media, the television in particular has become an inseparable part of most Iranian h...

A Note on Museum Making III

A note on QUBO instances defined on Chimera graphs

McGeoch and Wang (2013) recently obtained optimal or near-optimal solutions to some quadratic unconstrained boolean optimization (QUBO) problem instances using a 439 qubit D-Wave Two quantum computing system in much less time than with the IBM ILOG CPLEXmixed-integer quadratic programming (MIQP) solver. The problems studied by McGeoch and Wang are defined on subgraphs – with up to 439 nodes – o...