A model reduction method for stable, linear, time-invariant,
continuous systems is critically studied. This
method, proposed by Prof. Ouyang, is based on the concept
of power dispersion and the least-squared estimation
technique. The reduced models obtained by this method retain
the stability of the stable, high order original systems and...
The virulence of selected isolants of infectious hematopoietic
necrosis virus (IHNV) were differentiated and correlated with
electrophoretic mobilities of virion structural proteins by sodium
dodecylsulfate polyacrylamide gel electrophoresis. A type 1
electropherotype of IHNV was more virulent for kokanee salmon
(Oncorhynchus nerka) and a type 2 strain more virulent for...
A new Lactobacillus species is proposed to include 17 strains of a bacterium from rainbow (Salmo gairdneri) and cutthroat trout (Salmo clarki), and chinook salmon (Oncorhynchus tshawytscha). The bacterium was isolated most frequently from fish stressed by handling or spawn ing. Phenotypically, the strains belong to the family Lactobacillaceae and...
Monoclonal antibodies (Mabs) were produced against the
myxosporean parasite, Ceratomyxa shasta, and were characterized
by indirect immunofluorescent techniques, western blot analysis,
and immunoelectron microscopy. The resulting Mabs reacted
specifically with the trophozoite and sporoblast stages of the
parasite, but not with the mature spore, indicating that certain
antigens are stage-specific....
The ability of Flexibacter columnaris to attach to fish
cells was studied. Four of the five bacterial strains
tested were able to adhere to fish cells derived from four
different fish species. The attachment of these strains
in vitro required magnesium but was not affected by
increasing the incubation temperature...
The response on the continental shelf of a baroclinic ocean to
driving by an alongshore coastal wind stress and by barotropic and
baroclinic wind forced interior motions is studied as a function of
latitude. The relative excitation of continental shelf waves and
internal Kelvin waves is studied.
The response of...