14 research outputs found
A Scheduling Method and System for Communication
In a method of scheduling transmission services over a high speed packet access communication link such as a HSDPA and/or a HSUPA link a list of queues is created for transmission services to be provided over the link. The queues, which include both Real Time and Non Real Time queues, are allotted respective service priorities based e.g. on a channel quality indicator and/or a Quality of Service indicator to produce an ordered list of queues based on the service priorities. The link resources needed for serving at least one set of queues having higher priorities in the ordered list are estimated and a check is made. If these resources are available, the set of queues having higher priorities in the ordered list are served. If the resources required are not available, at least one queue is removed from the ordered list of queues
Conditioning of cell morpho-functional behaviour by rapid-prototyped and salt-leached PLGA scaffolds
Rapid-prototyped and salt-leached PLGA scaffolds condition cell morpho-functional behavior.
Abstract: Three dimensional scaffolds microfabricated
using pressure-assisted microsyringe (PAM) with controlled
geometry and porous membranes obtained using
salt leaching were both tested with three different cell
types to identify an optimal microstructural architecture
for tissue engineering. MG63 (osteoblast-like cells) were
used as models of mesenchymal bone tissue and human
endothelial cells and NCTC2544 (keratinocytes) represented
two epithelial tissues. Both porosity and stiffness of
PLGA structures were measured, and cell morphology and
cytoskeletal organization analyzed using SEM and actin
labeling. The results show that overall the PAM scaffolds,
which have a repeated and regular microstructure, are
more biocompatible than the random pore salt-leached
membranes, and that surface morphology as well as substrate
stiffness modulates cell behavior. 2007 Wiley Periodicals,
Inc. J Biomed Mater Res 85A: 466â476, 2008
Conditioning of cell morpho-functional behaviour by rapid-prototyped and salt-leached PLGA scaffold.
New âCAPEâ solutions for olefins plants. Detailed dynamic simulation and dynamic real-time optimization
This paper deals with certain novel and appealing computer-aided process engineering (CAPE) solutions to improve flexibility, controllability, and operability of olefins plants. It shows the use of detailed kinetic schemes, developed and validated by Professor Sauro Pierucci and his colleagues at the Chemical Engineering group at Politecnico di Milano, to produce new effective tools for reliable and accurate dynamic simulation and dynamic real-time optimization methodologies. Preliminary results and tangible benefits are explained for a steam cracking furnace