We present a database consisting of wood pile images, which can be used as a benchmark to evaluate the performance of wood pile detection and surveying algorithms. We distinguish six database categories which can be used for different types of algorithms. Images of real and synthetic scenes are provided, which consist of 7655 images divided into 354 data sets. Depending on the category the data...

In this paper we introduce the Bidimensional Sand Pile Model (BSPM), that is, a generalization of the Sand Pile Model (SPM) with the addition of a further dimension. The SPM and some related models have been studied in many different domains and they play an important role in the theory of discrete dynamical systems. They were considered in the context of integer lattices by Brylawski in 1973. ...

After receiving research ethics approval from the review boards at three teaching hospitals affiliated with two universities in urban Ontario, Canada, we asked clinical and educational leaders in each hospital to identify inter-professional clinical health care teams with reputations for strong collaborations and managerial/administrative support. These prepositions require the reader to sift t...

The observation of a bright X-ray source by the Chandra X-ray Observatory's High Energy Transmission Grating Spectrometer (HETGS) can be compromised by photon pile-up in the CCD leading to false absorption features in the observed spectrum. A method for removing the e ects of pile-up in a dispersed grating spectrum is presented. The e ectiveness of the technique is demonstrated through its appl...

Ni–20Cr alloy is a representative model that shows planar dislocation motion. The motion causes plasticity-induced stress concentration at grain boundaries, which can be reason for intergranular cracking. In this study, the micro-deformation behavior in and its interaction with boundaries were investigated. To clarify micro-plasticity near alloy, we present an applicability of situ electron cha...

Discrete piles are used to stabilise infrastructure slopes, especially where there is insufficient additional land to allow construction of large toe berms or regrading of the slope. Compared with more conventional structures such as retaining walls, there are few field data on how discrete piles typically bend and displace under slope loading. This paper presents the results from monitoring a ...

This paper presents science-based, interim noise exposure criteria for the onset of direct physical injury in fish exposed to the impact sound associated with pile driving. This paper provides an objective, scientific assessment of pile driving exposures which are injurious to fish. It does not explicitly consider policies of regulatory agencies which are based on mandated legal requirements an...

The control of the expression of the pilin gene (pilE) in Neisseria gonorrhoeae under a wide variety of growth conditions has been studied. The expression of pilE was measured using transcriptional fusions between pilE and the gene encoding chloramphenicol acetyltransferase (CAT), and the level of pilin production was measured by Western blot analysis. Many of the conditions tested affected bot...