On Long-period Seismographs

REPORT ON SOME EXPERIMENTAL LONG-PERIOD SEISMOGRAPHS By RALP~ GILMAN

The unexpected usefulness in research of the Press-Ewing seismograph system (Press, Ewing and Lehner, 1958) has stimulated further efforts to obtain even higher seismograph sensitivity in the period range beyond 100 see. A major difficulty has been in maintaining pendulum stability at long periods. This paper describes a stable long-period seismometer and gives results from several se, ismograp...

Store Managers – the Seismographs in Shopping Centres Store Managers – the Seismographs in Shopping Centres

Purpose: The aim of this paper is to investigate (1) the link between store managers’ evaluation of how customers assess a shopping centre and their own evaluation of the centre and, based on that, (2) the relevance of store managers in reflecting upon and informing the management and marketing practices of the local shopping centre management. Methodology: A conceptual model is developed based...

Long Period Exoplanets

Recent imaging campaigns indicate the possible existence of massive planets on ∼> 1000 year orbits about a few percent of normal stars. Such objects are not easily explained in most current planet formation models. In this Letter we use a large ensemble of N-body simulations to evaluate the potential for planet scattering during relaxation of dynamically active systems to explain very long peri...

A Long Gestation Period

Long Period Fibre Gratings