The Mechanism behind Erosive Bursts in Porous Media

Erosion and deposition during flow through porous media can lead to large erosive bursts that manifest as jumps in permeability and pressure loss. Here we reveal that the cause of these bursts is the re-opening of clogged pores when the pressure difference between two opposite sites of the pore surpasses a certain threshold. We perform numerical simulations of flow through porous media and compare our predictions to experimental results, recovering with excellent agreement shape and power-law distribution of pressure loss jumps, and the behavior of the permeability jumps as function of particle concentration. Furthermore, we find that erosive bursts only occur for pressure gradient thresholds within the range of two critical values, independent on how the flow is driven. Our findings provide a better understanding of sudden sand production in oil wells and breakthrough in filtration.Comment: 7 pages, 8 figure

Additional file 2: of How do clients in Australia experience Consumer Directed Care?

CDC Codes and Categories. (PDF 283 kb

Systematic Review Process.

<p>Systematic Review Process.</p

Additional file 1: of Appraising the uptake and use of recommendations for a common outcome data set for clinical trials: a case study in fall injury prevention

Included and excluded randomised trials. (PDF 218 kb

Additional file 1: of Psychological distress following a motor vehicle crash: preliminary results of a randomised controlled trial investigating brief psychological interventions

Consort checklist: recommended items to address in a clinical trial. (DOC 217 kb

Additional file 1: of Prevention of the development of psychological distress following a motor vehicle crash: study protocol for a randomized controlled trial

SPIRIT 2013 checklist: recommended items to address in a clinical trial protocol. (PDF 131 kb

Implementing a trauma-informed model of care in a community acute mental health team

In this paper, we demonstrate the value of implementing a Trauma-Informed Model of Care in a Community Acute Mental Health Team by providing brief intensive treatment (comprising risk interventions, brief counselling, collaborative formulation and pharmacological treatment). The team utilised the Conversational Model (CM), a psychotherapeutic approach for complex trauma. Key features of the CM are described in this paper using a clinical case study. The addition of the Conversational Model approach to practice has enabled better understandings of consumers' capacities and ways to then engage, converse, and intervene. The implementation of this intervention has led to a greater sense of self-efficacy amongst clinicians, who can now articulate a clear counselling model of care

Additional file 1: of Health care professionals’ attitudes towards evidence-based medicine in the workers’ compensation setting: a cohort study

Questionnaire EBM. (DOCX 18.5 kb

Additional file 1: of Adoption and use of guidelines for whiplash: an audit of insurer and health professional practice in New South Wales, Australia

Appendix 1. Insurer and health professional data collected based on recommendations of the guidelines. Appendix 2. Quebec Task Force classification of grades of WAD. Appendix 3. Flow diagram of claimant files included in the study. (DOCX 37 kb