The search for new solvents is driven by the needs of new applications and processing requirements, replacement of solvents whose continued use poses a threat to environmental health and safety, a response to changing environmental regulations, and a response to market demands.
Repeated breakage and requirement for replacement may have implications for the cost-effectiveness of both fixed and removable approaches.
It needs 30 spacecraft in orbit to operate a full network (with spares); and because Galileo will be an on-going service, there will be an on-going requirement for replacement satellites.
To test this hypothesis, we carried out a post-hoc analysis of a subgroup of patients from the randomized prospective trial, who based on the clinical requirement for replacement therapy were identified as having coagulopathy.
Due to electrical conductivity, specific surface area, pore size distribution and chemical inertness requirements, the replacement of high surface area carbon supports used in proton-exchange membrane fuel cells is challenging.
Moreover, past masterplans underestimated the requirements for replacements.
The requirement of renal replacement therapy among patients with burns who require intensive care seems not to differ from that of general intensive care units (ICUs).
We investigated three outcome measures of patients who required transfer to the ICU from the HDU during these periods: requirement for renal replacement therapy (RRT), length of stay (level 3 days), and ICU mortality.
The current requirement for Trident replacement subs is for them to operate as near to silently as possible.
Alan Curbishley and Steve Bruce lead the list of possible replacements (as they usually do) and, given their precarious league position, Morgan and the club's chief executive, Jez Moxey, may well feel that experience is the key requirement of any replacement.
