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Stinville J.C. Francis T. Polonsky A.T. Torbet C.J. Charpagne M.A. Chen Z. Balbus G.H. Bourdin F. Valle V. Callahan P.G. Echlin M.P. Pollock T.M. 《Experimental Mechanics》2021,61(2):331-348
Experimental Mechanics - Background: Advancements in the Digitial Image Correlation (DIC) technique over the past decade have greatly improved spatial resolution. However, many processes, such as... 相似文献
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John M. Balbus Karen Florini Richard A. Denison Scott A. Walsh 《Journal of nanoparticle research》2007,9(1):11-22
Nanotechnology, the design and manipulation of materials at the atomic scale, may well revolutionize many of the ways our
society manufactures products, produces energy, and treats diseases. New materials based on nanotechnology are already reaching
the market in a wide variety of consumer products. Some of the observed properties of nanomaterials call into question the
adequacy of current methods for determining hazard and exposure and for controlling resulting risks. Given the limitations
of existing regulatory tools and policies, we believe two distinct kinds of initiatives are needed: first, a major increase
in the federal investment in nanomaterial risk research; second, rapid development and implementation of voluntary standards
of care pending development of adequate regulatory safeguards in the longer term. Several voluntary programs are currently
at various stages of evolution, though the eventual outputs of each of these are still far from clear. Ultimately, effective
regulatory safeguards are necessary to provide a level playing field for industry while adequately protecting human health
and the environment. This paper reviews the existing toxicological literature on nanomaterials, outlines and analyzes the
current regulatory framework, and provides our recommendations, as an environmental non-profit organization, for safe nanotechnology
development. 相似文献
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?ukasz?Balbus Kevin?Reffett ?ukasz?Wo?nyEmail author 《International Journal of Game Theory》2015,44(1):83-112
We study the question of existence and computation of time-consistent Markov policies of quasi-hyperbolic consumers under a stochastic transition technology in a general class of economies with multidimensional action spaces and uncountable state spaces. Under standard complementarity assumptions on preferences, as well as a mild geometric condition on transition probabilities, we prove existence of time-consistent solutions in Markovian policies, and provide conditions for the existence of continuous and monotone equilibria. We present applications of our methods to habit formation models, environmental policies, and models of consumption under borrowing constraints, and hence show how our methods extend the results obtained by Harris and Laibson (Econometrica 69:935–957, 2001) to a broad class of dynamic economies. We also present a simple successive approximation scheme for computing extremal equilibrium, and provide some results on the existence of monotone equilibrium comparative statics in the model’s deep parameters. 相似文献
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