The US coast guard's deepwater program assuring maritiem security

Density and uniqueness in percolation

The Leiden/Argentine/Bonn (LAB) Survey of Galactic HI: Final data release of the combined LDS and IAR surveys with improved stray-radiation corrections

We present the final data release of observations of ?21-cm emission from Galactic neutral hydrogen over the entire sky, merging the Leiden/Dwingeloo Survey (LDS: Hartmann & Burton 1997, Atlas of Galactic Neutral Hydrogen) of the sky north of ? = ?30? with the Instituto Argentino de Radioastronomía Survey (IAR: Arnal et al. 2000, A&AS, 142, 35;...

Assessing and managing multiple risks in a changing world—The Roskilde recommendations

Roskilde University (Denmark) hosted a November 2015 workshop, Environmental Risk—Assessing and Managing Multiple Risks in a Changing World. This Focus article presents the consensus recommendations of 30 attendees from 9 countries regarding implementation of a common currency (ecosystem services) for holistic environmental risk assessment and...

First principles phase diagram calculation for the 2D TMD system WS₂−WTe₂

First principles phase diagram calculations, that included van der Waals interactions, were performed for the bulk transition metal dichalcogenide system (1−X)·WS₂−(X)·WTe₂. To obtain a converged phase diagram, a series of cluster expansion calculations were performed with increasing numbers of structural energies, (N...

Properties of base stocks obtained from used engine oils by acid/clay re-refining

For more than 10 years the Fuels and Lubricants Laboratory of the Division of Mechanical Engineering has been examining the properties of base stocks, used oil feedstocks and re-refined engine oils of Canadian refiners. Over 20 samples of base stocks from six: Canadian re-refiners have been examined. Data are presented and compared with virgin...