The demand for improved controllers creates the need for synthesis techniques which emphasize optimality. Optimality automatically infers stability. This thesis presents one such technique which is not limited to linear systems. The theory of dynamic programming is applied to the synthesis of optimal controllers with emphasis on missile flight control...
Comparatively little work has been done on bacterial lipids.
There are profound differences between bacterial lipids in general
and lipids of the higher forms of life in such respects as the absence
of sterols, phospholipids low in nitrogen but high in inositol
and carbohydrate, the presence of large proportions of...
The ecology of a population of snowshoe hares, Lepus
americanus washingtonii, was studied in western Oregon from 1960
to 1962. Objectives were to obtain information to control hares,
which frequently cause damage to coniferous reproduction in the
region, and to compare the life history of this little-studied subspecies
with others....
It is
well
known
that
two-terminal
switching
circuits
may
be
represented
by
boolean
formulas.
Thus
the
study
of
certain
switching
circuit
problems
leads
to
the
study of
free
boolean
algebras,
in
particular
to
the
free
boolean
algebra
on
a
countably
infinite
set
of
generators.
An
abstract
characterization
of
this
algebra...