External explosion in an industrial site Sochet, I.; Sauvan, P.E.; Boulanger, R. ...
Journal of loss prevention in the process industries,
05/2014, Volume:
29
Journal Article
Peer reviewed
The scenario of an intentional explosion in an industrial site is studied here with the objective of understanding the propagation and interaction of shock waves in a complex environment standing for ...a gas storage warehouse. We conducted a small-scale experimental study supported by numerical simulations in order to lead a discussion. We are interested in the effects of an explosive charge located at the entrance of the gas storage infrastructure. The walls of the gas storage infrastructure and bottles of gas are assumed to be undeformable in this study. The propagation and reflection of the shock waves with overpressure effects are assessed in this study.
•Multiple reflections of shock waves with the bottle crates located in gas storage infrastructure.•Low-pressure due to circumvention of the walls.•Good correlation between small-scale experiments and simulation.
This study analyzes the propagation and reflections of regular Mach and shock waves through small-scale experiments and numerical modeling of an explosion in a gas storage plan. The gas storage area ...is a “U-shape” and contains two racks of 9 horizontal bottles (3 × 3) each. An explosive charge is located in a corner at the closed end of the system. The analyses of the shock waves and the effects of overpressure are conducted both inside and outside the plant.
•Accidental detonation scenario in a gas storage warehouse.•Multiple reflections of shock waves with the bottle crates located in gas storage infrastructure.•Propagation of a Mach stem along the interior walls of the warehouse clearly showed.•Good correlation between small scale experiments and simulation.
Mycale ( Mycale) loveni (Fristedt, 1887) is a very large structure-forming sponge that has previously been reported in the North Pacific, North Atlantic, and Arctic oceans. Through morphological and ...molecular examination, North Atlantic and Eastern Canadian Arctic specimens are now described as a new species, Mycale ( Mycale) lorea sp. nov. The two species have similar external morphology; however, the spicules that make up their skeletons differ in size and shape, and the species are also separated phylogenetically by multiple genetic markers.
Abstract Objective The main objective of this study was to describe the distribution of referrals offered to patients assessed in the “Post-Acute Stroke program” of Bordeaux University Hospital ...(France). This program was developed in 2008 to organize the dispensation of care in rehabilitation units specialized in neurological diseases. Material and methods This was a single-centre observational study. Between July 2008 and December 2012, data on the number of stroke patients hospitalized at the Bordeaux University Hospital and their post-acute referral were collected from the local hospital discharge database. Some of these patients were assessed by Physical Rehabilitation and Medicine physicians participating in the program. Proposed and actual referrals, time from admission to assessment and functional status were also collected. Results Among 4189 stroke patients, 1465 (35%) survivors were assessed, of whom 932 (22.2%) were discharged to inpatient rehabilitation facilities. There were no patients discharged to this type of unit without an assessment. Among the 1465 patients who were assessed, 57.2% were referred to specialized rehabilitation units, 6.3% were discharged to non-specialized rehabilitation units and 26% returned home directly. The median total length of stay in acute units varied from 10 to 15 days depending on referral orientation. Conclusion Patients that were assessed were more likely to be transferred to specialized rehabilitation units than to non-specialized rehabilitation units. The Post-Acute Stroke program has the particularity of combining private and public specialized rehabilitation units in a common collaborative referral system while retaining the control and flexibility of personalised referral for each patient in the light of local care availability.
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