5,515 research outputs found
Phase transitions in ensembles of solitons induced by an optical pumping or a strong electric field
The latest trend in studies of modern electronically and/or optically active
materials is to provoke phase transformations induced by high electric fields
or by short (femtosecond) powerful optical pulses. The systems of choice are
cooperative electronic states whose broken symmetries give rise to topological
defects. For typical quasi-one-dimensional architectures, those are the
microscopic solitons taking from electrons the major roles as carriers of
charge or spin. Because of the long-range ordering, the solitons experience
unusual super-long-range forces leading to a sequence of phase transitions in
their ensembles: the higher-temperature transition of the confinement and the
lower one of aggregation into macroscopic walls. Here we present results of an
extensive numerical modeling for ensembles of both neutral and charged solitons
in both two- and three-dimensional systems. We suggest a specific Monte Carlo
algorithm preserving the number of solitons, which substantially facilitates
the calculations, allows to extend them to the three-dimensional case and to
include the important long-range Coulomb interactions. The results confirm the
first confinement transition, except for a very strong Coulomb repulsion, and
demonstrate a pattern formation at the second transition of aggregation.Comment: 16 pages, 16 figure
The structure of decomposition of a triconnected graph
We describe the structure of triconnected graph with the help of its
decomposition by 3-cutsets. We divide all 3-cutsets of a triconnected graph
into rather small groups with a simple structure, named complexes. The detailed
description of all complexes is presented. Moreover, we prove that the
structure of a hypertree could be introduced on the set of all complexes. This
structure gives us a complete description of the relative disposition of the
complexes.
Keywords: connectivity, triconneted graphs.Comment: 49 pages, 8 figures. Russian version published in Zap. Nauchn. Sem.
POMI v.391 (2011), http://www.pdmi.ras.ru/znsl/2011/v391/abs090.htm
Marine recreational fisheries statistics survey for northern and central California, Quarterly Report no. 11, January to March 1982
Field intercept Marine Recreational Fisheries Statistics Survey (MRFSS) data for central and northern California, collected in January to March 1982, is presented in a data report format. Data in this quarterly report are subdivided into three categories: primarily by five geographical areas; secondarily by fishing modes and gear types within each area; and finally by catch definition for each area, mode, and gear type. Tables are presented for these categories, each with three sections: sampled effort, ranked catch, and catch-per-unit effort (CPUE). Also, within each area, length-frequency histograms and tables are presented for select species. (122pp.
Conversions between total, fork, and standard lengths for 41 species in 15 families of fish from California using preserved and fresh specimens
Tables of regression values for converting between total, fork, and standard lengths are provided for 41 species of fish from 15 families using preserved and fresh specimens of fish. A table is also included for converting between body length and total length for Pacific herring, Clupea harengus pallasii. (17pp.
Marine recreational fisheries statistics survey for northern and central California, quarterly report no. 13, July to September, 1982
Field intercept Marine Recreational Fisheries Statistics Survey (MRFSS) data for central and northern California, collected in July to September 1982, is presented in a data report format. Data in this quarterly report are
subdivided into three categories: primarily by five geographical areas; secondarily by fishing modes and gear types within each area; and finally by catch definition for each area, mode, and gear type. Tables are presented
for these categories, each with three sections: sampled effort, ranked catch, and catch-per-unit-effort (CPUE). Also, within each area, length-frequency histograms and tables are presented for select species. (PDF contains 137 pages
Marine recreational fisheries statistics survey for northern and central California, Quarterly Report no. 8, April to June, 1981
Field intercept Marine Recreational Fisheries Statistics Survey (MRFSS) data for central and northern California, collected in April to June 1981, is presented in a data report format. Data in this quarterly report are
subdivided into three categories: primarily by five geographical areas; secondarily by fishing modes and gear types within each area; and finally by catch definition for each area, mode, and gear type. Tables are presented for these categories, each with three sections: sampled effort, ranked catch, and catch-per-unit-effort (CPUE). Also, within each area, length-frequency histograms and tables are presented for select species. (131pp.
Marine recreational fisheries statistics survey for northern and central California, Quarterly Report no. 9, July to September 1981
Field intercept Marine Recreational Fisheries Statistics Survey (MRFSS) data for central and northern California, collected in July to September 1981, is presented in a data report format. Data in this quarterly report are subdivided into three categories: primarily by five geographical areas;
secondarily by fishing modes and gear types within each area; and finally by catch definition for each area, mode, and gear type. Tables are presented for these categories, each with three sections: sampled effort, ranked catch, and catch-per-unit-effort (CPUE). Also, within each area,
length-frequency histograms and tables are presented for select species. (149pp.
Marine recreational fisheries statistics survey for Northern and Central California, Quarterly Report No. 3, January to March 1980
Field intercept Marine Recreational Fisheries Statistics Survey (MRFSS) data for central and northern California, collected in January to March 1980, is presented in a data report format. Data in this quarterly report are
subdivided into three categories: primarily by five geographical areas; secondarily by fishing modes and gear types within each area; and finally by catch definition for each area, mode, and gear type. Tables are presented for
these categories, each with three sections: sampled effort, ranked catch, and catch-per-unit-effort (CPUE). Also, within each area, length-frequency histograms and tables are presented for select species. (144 page document
Marine recreational fisheries statistics survey for northern and central California, quarterly report no. 12, April to June, 1982
Field intercept Marine Recreational Fisheries Statistics Survey (MRFSS) data for central and northern California, collected in April to June 1982, is presented in a data report format. Data in this quarterly report are
subdivided into three categories: primarily by five geographical areas; secondarily by fishing modes and gear types within each area; and finally by catch definition for each area, mode, and gear type. Tables are presented
for these categories, each with three sections: sampled effort, ranked catch, and catch-per-unit-effort (CPUE). Also, within each area, length-frequency histograms and tables are presented for select species. (139pp.
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