120,697 research outputs found
Continued Radicals
A nested radical with terms is an expression of form . The limit
as approaches infinity of such an expression, if it exists,
is called a continued radical. We consider the set of real
numbers representable as a continued radical whose terms are all from a finite set of nonnegative real numbers. We give conditions on the set for to be (a) an interval, and (b) homeomorphic to the Cantor set
A Class of Periodic Continued Radicals
We compute the limits of a class of periodic continued radicals and we
establish a connection between them and the fixed points of the Chebycheff
polynomials
Continued Radicals and Cantor Sets
We examine the formation of sets homeomorphic to the ternary Cantor set by continued radicals. We determine properties of bridges and gaps and calculate the thickness of the Cantor set. From this we apply information from continued fractions to continued radicals to obtain new results. We also consider the measure of several Cantor sets
Method of cross-linking polyvinyl alcohol and other water soluble resins
A self supporting sheet structure comprising a water soluble, noncrosslinked polymer such as polyvinyl alcohol which is capable of being crosslinked by reaction with hydrogen atom radicals and hydroxyl molecule radicals is contacted with an aqueous solution having a pH of less than 8 and containing a dissolved salt in an amount sufficient to prevent substantial dissolution of the noncrosslinked polymer in the aqueous solution. The aqueous solution is then irradiated with ionizing radiation to form hydrogen atom radicals and hydroxyl molecule radicals and the irradiation is continued for a time sufficient to effect crosslinking of the water soluble polymer to produce a water insoluble polymer sheet structure. The method has particular application in the production of battery separators and electrode envelopes for alkaline batteries
Continued Radicals
If a1, a2, . . . , an are nonnegative real numbers and fj(x) = paj + x, then f1o f2o· · · fn(0) is a nested radical with terms a1, . . . , an. If it exists, the limit as n ! 1 of such an expression is a continued radical. We consider the set of real numbers S(M) representable as an infinite nested radical whose terms a1, a2, . . . are all from a finite set M. We give conditions on the set M for S(M) to be (a) an interval, and (b) homeomorphic to the Cantor set
Review on Multi-Scale Models of Solid-Electrolyte Interphase Formation
Electrolyte reduction products form the solid-electrolyte interphase (SEI) on
negative electrodes of lithium-ion batteries. Even though this process
practically stabilizes the electrode-electrolyte interface, it results in
continued capacity-fade limiting lifetime and safety of lithium-ion batteries.
Recent atomistic and continuum theories give new insights into the growth of
structures and the transport of ions in the SEI. The diffusion of neutral
radicals has emerged as a prominent candidate for the long-term growth
mechanism, because it predicts the observed potential dependence of SEI growth.Comment: 8 pages, 4 figure
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