40,744 research outputs found
Silver-chlorine fuel cell: A concept
Fuel cell regenerated by photochemical reduction enables novel slurry system to transport particles of reduced silver between regenerator section and anode. Fundamental reactions which provide electrical power from the fuel cell are given
Are There Philosophical Answers to Psychiatric Questions?
Contemporary psychiatry has only one generally
accepted model, that of biological – materialist explanation
and treatment. But clinicians recognize that this model
omits much that is important and they therefore confront a
dilemma: either limit their practice to an incomplete model,
or use other models which seem unfounded and
speculative. Philosophical considerations may help
clinicians find a way out 1) by showing the inherent
limitations of biological – materialist explanations, and 2)
by grounding other (psychotherapeutic) approaches on
general considerations of how the mind, and in particular
language, works. These general considerations include:
the dependence of meaning upon environmental context,
the attribution of meaning as involving sets of skills,
capacities and reactions, the multiplicity of language
games and therefore their individual limitations, the
dependence of meaning upon our shared interests, the
largely unconscious nature of mind and our necessary
limitations to public criteria for mental events and
processes
Nonflammable potting-encapsulating and conformal coating compounds
Two fluorosilicone rubber formulations have been produced which are nonflammable or self-extinguishing. Extensive report was prepared which includes information on testing and describes many alternate formulations
Shock Diffraction by Convex Cornered Wedges for the Nonlinear Wave System
We are concerned with rigorous mathematical analysis of shock diffraction by
two-dimensional convex cornered wedges in compressible fluid flow governed by
the nonlinear wave system. This shock diffraction problem can be formulated as
a boundary value problem for second-order nonlinear partial differential
equations of mixed elliptic-hyperbolic type in an unbounded domain. It can be
further reformulated as a free boundary problem for nonlinear degenerate
elliptic equations of second order. We establish a first global theory of
existence and regularity for this shock diffraction problem. In particular, we
establish that the optimal regularity for the solution is across the
degenerate sonic boundary. To achieve this, we develop several mathematical
ideas and techniques, which are also useful for other related problems
involving similar analytical difficulties.Comment: 50 pages;7 figure
Building Strong Readers In Minnesota: PreK-3rd Grade Policies That Support Children's Literacy Development
From 2015 through 2016, the Early Education Initiative will be producing a series of reports from states and localities across the United States to provide an inside look at efforts to support children's learning from infancy and extending into the early grades.This paper explores how Minnesota's pre-K through third grade education policies are helping or hindering the ability of school districts, schools, and teachers to ensure that all children are on track to read on grade level by the end of third grade
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