Photosensitive films incorporating molecular photoacid generators compartmentalized within a silica-surfactant mesophase were prepared by an evaporation-induced self-assembly process. Ultraviolet exposure promoted localized acid-catalyzed siloxane condensation, which can be used for selective etching of unexposed regions; for "gray-scale" patterning of refractive index, pore size, surface area,...

The Chemical Engineering Science movement has served well in solving problems from micro to macro scales. Ultimately, as Professor R. Sargent pointed out, it would be better if translated in “Scientific Engineering”. Examples of innovation as a combination of science (concept), technology and process/product will be presented. The first example is perfusion chromatography based on the concept o...

Colloid transport and retention in porous media is a common phenomenon nature. However, mechanisms are not fully revealed based on macroscale experimental observations. The pore-network model (PNM) an effective method to account for the pore structure of medium provides direct connection between pore-scale phenomenon. In this study, PNMs with cylindrical throats spherical bodies used upscale wa...

UNLABELLED Arterial line filters (ALFs) are arguably the most important component in the cardiopulmonary bypass circuit to protect the patient from gaseous macro- and micro-emboli (GME) originating in the perfusion circuit. The GME separating ability of 10 ALFs was ranked according to seven performance criteria. Ten ALFs rated between 20 and 43 microm were evaluated for flow resistance, the cou...

development of pore network models for real porous media requires a detailed understanding of physical processes occurring on the microscopic scale and a complete description of porous media morphology. in this study, the microstructure of porous media has been represented by three dimensional networks of interconnected pores and throats which are designed by an object oriented approach. afterw...

The semantics of the times macro is given in [2] only for the case when the body of the macro is parahalting. We remedy this by defining a new times macro instruction in terms of while (see [9, 13]). The semantics of the new times macro is given in a way analogous to the semantics of while macros. The new times uses an anonymous variable to control the number of its executions. We present two e...