A large data set on ripples was collected and examined. A set of new formulas for the prediction of the ripple characteristics is proposed with an emphasis on the disappearance of the ripples. The ripple wavelength was observed to be proportional to the bottom wave excursion but also to be a function of the grain-related Shields parameter and wave period parameter introduced by Mogridge et al. ...

As the complexity of a construction project increases, the occurrence of changes becomes unavoidable. In addition to the direct impact, a change may also have consequential impact (ripple effect) on the performance of project duration and cost. Built on a schedule network, this paper proposes a model, called LOGIC that uses a logic-based (including hard logic, soft logic, and causal logic) appr...

Ripples are high-frequency oscillation bursts in the mammalian hippocampus mainly present during Non-REM sleep. In rodents they occur in association with sharp waves and are grouped by the cortical slow oscillation such that, in parallel with sleep spindles, ripple activity is suppressed during the hyperpolarized down-state and enhanced during the depolarized up-state. The temporal coupling bet...

On the basis of analyzing the defects that traditional system dependence graph have, a novel method based on ripple effect is proposed to construct coarsegrained system dependence graph. The method perfects object-oriented program semantics and reduces the computation complexity through expanding the signification of coarse-grained and analyzing ripple effect. Objectoriented program semantics a...

The wavelength scaling of ripple patterns formed by granular materials underneath flowing fluids is investigated. Experimental results from five systems involving substantially different experimental conditions are compared to each other. The data analysis reveals that all systems display a common, global scaling behavior for the onset of ripple formation on short time scales. This suggests the...

In this paper a hybrid active DC line conditioner for fluctuations and ripples reduction in voltage and current of DC power systems is proposed. Malfunctions in operation of equipments and systems which are supplied by low quality distribution power systems are one of the main effects of DC voltage ripple. In the proposed configuration a hybrid system including series and shunt active line ...

At the ascilite conference last year we presented a paper (Loch & Borland, 2014) on challenges faced by the discipline of mathematics when the blended classroom is implemented. We concluded with seven research questions that required investigation, given the increase of blended learning mandates in Australian universities. These questions similarly apply to other STEM disciplines. In this paper...

This paper examines the potential causes of the “ripple effect” of minimum wages. This wage spillover is thought to result from labor demand substitution: where the rising minimum increases the demand for more-skilled workers who become relatively inexpensive. However, the rising minimum also affects the relative wages across hedonically distinct occupations because it lowers compensating wage ...

A recent dual-tree wavelet shrinkage method to suppress sand ripples in sonar imagery is extended with a Markov random field framework. Markov chain Monte Carlo sampling is used to estimate the posterior marginal ripple state in the wavelet domain. Ripple suppression is realised by multiplying the dual-tree wavelet coefficients by the conditional probabilities of the non-ripple state. Tests on ...