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Proper Combination (proper + combination)
Selected AbstractsOverview of polymer micro/nanomanufacturing for biomedical applicationsADVANCES IN POLYMER TECHNOLOGY, Issue 4 2008Allen Y. Yi Abstract Micro/nanotechnology is initiated from the electronics industry. In recent years, it has been extended to micro/nanoelectromechanic system for producing miniature devices based on silicon and semiconductor materials. However, the use of these hard materials alone is inappropriate for many biomedical devices. Soft polymeric materials possess many attractive properties such as high toughness and recyclability. Some possess excellent biocompatibility, are biodegradable, and can provide various biofunctionalities. Proper combinations of micro/nanoelectronics, polymers, and biomolecules can lead to new and affordable medical devices. In this paper, we briefly review several cleanroom and noncleanroom techniques related to micro/nanomanufacturing of polymeric materials. © 2009 Wiley Periodicals, Inc. Adv Polym Techn 27:188,198, 2008; Published online in Wiley InterScience (www.interscience.wiley.com). DOI 10.1002/adv.20134 [source] Speaking of God after the Death of GodDIALOG, Issue 3 2005By Daniel J. Peterson Abstract:, This article affirms the ability to talk about God in the twenty-first century 40 years after God died (according to Death-of-God theologians) in the 1960s. It does so by an appeal to the proper combination of mystery and revelation ideally expressed in the paradox that God reveals Godself as hidden. The language of God's revealed hiddenness comprises a "middle way" which avoids the extremes of theological hubris on the one hand and atheism or unbelief on the other, making it possible to speak today of God in a faithful yet humble manner. [source] Flow characteristics of thermo-responsive microspheres in microchannel during the phase transitionAICHE JOURNAL, Issue 6 2009Ming-Yu Zhou Abstract To probe into the flow and aggregation behaviors of thermo-responsive microspheres in microchannel during the phase transition, the flow characteristics of monodisperse poly(n -isopropylacrylamide) (PNIPAM) microspheres in microchannel with local heating are investigated systematically. When the fluid temperature in the microchannel increases across the lower critical solution temperature (LCST), the PNIPAM microspheres finish the phase transition within 10 s and are easily get aggregated during the phase transition. The diameter ratio of microsphere to microchannel, number of microspheres, initial distance between microspheres, and flow direction of fluid in microchannel, are key parameters affecting the flow and aggregation behaviors of the microspheres in microchannel during the phase transition. If a proper combination of these parameters is designed, the microspheres can aggregate together during the phase transition and stop automatically at a desired position in the microchannel by local heating, which is what the targeting drug delivery system expected. © 2009 American Institute of Chemical Engineers AIChE J, 2009 [source] A parallel block overlap preconditioning with inexact submatrix inversion for linear elasticity problemsNUMERICAL LINEAR ALGEBRA WITH APPLICATIONS, Issue 2 2002Igor E. Kaporin We present a parallel preconditioned iterative solver for large sparse symmetric positive definite linear systems. The preconditioner is constructed as a proper combination of advanced preconditioning strategies. It can be formally seen as being of domain decomposition type with algebraically constructed overlap. Similar to the classical domain decomposition technique, inexact subdomain solvers are used, based on incomplete Cholesky factorization. The proper preconditioner is shown to be near optimal in minimizing the so-called K -condition number of the preconditioned matrix. The efficiency of both serial and parallel versions of the solution method is illustrated on a set of benchmark problems in linear elasticity. Copyright © 2002 John Wiley & Sons, Ltd. [source] | ||||||||||