Discussion on ``Comparative Costs of 25-Cycle and 60-Cycle Alternators.'' Frontenac, N. Y., June 30, 1909

Discussion of “ Business Cycle and the Life Cycle ”

It has been well known for at least the past two decades that the standard neo-classical growth model, notwithstanding its surprising success in explaining many aggregate phenomena, performs poorly when it comes to explaining business cycle fluctuations in the labor market. The work of Gomme, Rogerson, Rupert, and Wright (henceforth GRRW) builds on the premise that the understanding of labor ma...

Comparative Life Cycle Assessment

Investigation on life cycle assessment of lead and zinc production

Lead and zinc production is one of the main predisposing factors of excessive greenhouse gases emissions, air pollution and water consumption. In this paper, the environmental problems of lead and zinc production in Calcimin plant are expressed and life cycle assessment of this plant is assessed. The data regarding the amount of induced global warming and pollution, acidification, and depletion...

On the tenacity of cycle permutation graph

A special class of cubic graphs are the cycle permutation graphs. A cycle permutation graph Pn(α) is defined by taking two vertex-disjoint cycles on n vertices and adding a matching between the vertices of the two cycles.In this paper we determine a good upper bound for tenacity of cycle permutation graphs.

Cycle helmets: 25 years along the road