Environmental data exhibits as huge amount and complex dependency. Utilizing these data to detect anomaly is beneficial to the disaster prevention. Big data approach using the machine learning method has the advantage not requiring the geophysical and geochemical knowledge to detect anomaly. This paper using the popular support vector regression (SVR ) to model the correlation between factors. ...

This study aimed to assess how the current climate change perspective, with various air temperature (4°C, 10°C, 14°C and 18°C) affected metal releasing from tailings. Heavy metals pollution from tailings leaching are of increasing concern. Column leaching experiment was conducted for 15 weeks to a series of tailings with 20 mm/week water leaching four temperature situations. Leachate chemical physics ...

System reliability of an offshore power plant with several gas turbine engines is analyzed in this study to understand the failure intensity of a selected gas turbine engines under varying maintenance activities. A set of event data of a selected gas turbine engine is considered to identify system failure intensity levels, where unknown maintenance actions were implemented (i.e. various repairs ...

<i>Purpose</i> – Due to the certain risk carried in offshore petroleum installations, the integrity of these installations needs to be maintained at all times. Thus, asset integrity management (AIM) needs to be formulated and monitored to achieve the integrity objective. The purpose of this paper is to study the practices and progression of strategic AIM planning in the petroleum industry. ...

The thesis presents analysis of material properties and internal effects in steel samples, with varying temperatures. Uniaxial tensile tests were conducted in both room temperature and low temperatures, to generate graphical measures of the mechanical properties. The steel samples were monitored with thermography throughout the course of the tensile tests, to investigate the heat generation associated ...

Effectiveness is an important term in oil spill response operations. Literature often relate to the level of effectiveness connected to either mechanical containment and recovery, in-situ burning or chemical dispersant application. The term effectiveness in oil spill response operations can be related to existing theory and the perspective of Overall Equipment Effectiveness (OEE). The perspective ...

Over the recent years, the ship traffic in the polar areas has increased. There is reason to believe that this traffic, and especially the cruise traffic, will increase further as the ice retracts towards the poles. There is also reason to believe that with the continued focus and exposure of the Polar Region, the cruise tourism to the region will grow.The increased presence in the polar areas will ...

Samfunnet vårt i dag er avhengig av en rekke kjemikalier i industri og næringsliv (Justis- og beredskapsdepartementet, Helse- og omsorgsdepartementet & Forsvarsdepartementet, 2016). Vest-tank ulykken i 2007 i Gulen kommune, hvor en tank på et industrianlegg eksploderte. Anlegget skulle rense forurenset vann fra lasteskip. Det kom frem etter ulykken at Vest-tank også drev med ulovlig håndtering av ...

Maritim sikkerhet ble spesielt kjent etter utbruddet av somalisk piratvirksomhet i årene etter 2008 (Bueger, 2014). Piratvirksomheten utenfor Somalia har lenge representert en trussel mot den internasjonale handelen på grunn av den fysiske påvirkningen den har på skip og dens besetning, samt den avskrekkende effekten den har på handelen i regionen (Winn & Lewis, 2017). Denne studien har sett nærmere ...

Endringer i norsk terrorlovgivning og økt nasjonal straffeforfølgelse av syriafarerne har ført til at en rekke radikaliserte personer befinner seg i norske fengsler. Uønskede hendelser i Paris og København 2015 har illustrert hvor alvorlig konsekvensene av fengselsradikalisering kan være. Det er behov for å videreføre det rehabiliterende forebyggingsarbeidet som gjennomføres i fengslene, også etter ...