Dynamics analysis and predefined-time sliding mode synchronization of multi-scroll systems based on a single memristor model
Chaos Solitons & Fractals,
Journal Year:
2025,
Volume and Issue:
196, P. 116337 - 116337
Published: April 4, 2025
Language: Английский
Advances in Zeroing Neural Networks: Bio-Inspired Structures, Performance Enhancements, and Applications
Biomimetics,
Journal Year:
2025,
Volume and Issue:
10(5), P. 279 - 279
Published: April 29, 2025
Zeroing
neural
networks
(ZNN),
as
a
specialized
class
of
bio-Iinspired
networks,
emulate
the
adaptive
mechanisms
biological
systems,
allowing
for
continuous
adjustments
in
response
to
external
variations.
Compared
traditional
numerical
methods
and
common
(such
gradient-based
recurrent
networks),
this
capability
enables
ZNN
rapidly
accurately
solve
time-varying
problems.
By
leveraging
dynamic
zeroing
error
functions,
exhibits
distinct
advantages
addressing
complex
challenges,
including
matrix
inversion,
nonlinear
equation
solving,
quadratic
optimization.
This
paper
provides
comprehensive
review
evolution
model
formulations,
with
particular
focus
on
single-integral
double-integral
structures.
Additionally,
we
systematically
examine
existing
activation
which
play
crucial
role
determining
convergence
speed
noise
robustness
models.
Finally,
explore
diverse
applications
models
across
various
domains,
robot
path
planning,
motion
control,
multi-agent
coordination,
chaotic
system
regulation.
Language: Английский
Advances in Zeroing Neural Networks: Convergence Optimization and Robustness in Dynamic Systems
Xin Zhou,
No information about this author
Bolin Liao
No information about this author
Mathematics,
Journal Year:
2025,
Volume and Issue:
13(11), P. 1801 - 1801
Published: May 28, 2025
Zeroing
Neural
Networks
(ZNNs),
an
ODE-based
neural
dynamics
framework,
has
become
a
pivotal
approach
for
solving
time-varying
problems
in
dynamic
systems.
This
paper
systematically
reviews
recent
advances
improving
the
convergence
of
ZNN
models,
focusing
on
optimization
fixed
parameters,
and
activation
functions.
Additionally,
structural
adaptations
fuzzy
control
strategies
have
significantly
enhanced
robustness
disturbance
rejection
capabilities
these
ZNNs
been
successfully
applied
robotic
control,
demonstrating
superior
accuracy
compared
to
traditional
methods.
Future
research
directions
include
exploring
nonlinear
functions,
multimodal
adaptation
strategies,
scalability
real-world
environments.
Language: Английский
New discrete memristive hyperchaotic map: modeling, dynamic analysis, and application in image encryption
Fei Yu,
No information about this author
Yi-Chen Wu,
No information about this author
Xuqi Wang
No information about this author
et al.
Frontiers in Physics,
Journal Year:
2025,
Volume and Issue:
13
Published: June 5, 2025
With
the
rapid
development
of
information
technology,
demand
for
ensuring
data
security
and
privacy
protection
has
become
increasingly
urgent.
The
purpose
this
study
is
to
address
limitations
existing
image
encryption
methods
develop
a
more
secure
efficient
scheme.
To
achieve
this,
we
adopt
research
method
that
involves
constructing
new
type
discrete
memristor
hyperchaotic
map
by
coupling
an
upgraded
cosine
with
Cubic
map,
then
conducting
in-depth
analysis
system’s
dynamic
characteristics
using
phase
diagrams,
Lyapunov
exponential
spectra,
bifurcation
diagrams
confirm
its
ability
reach
state.
Based
on
propose
scheme,
generating
high-quality
chaotic
sequences
through
excellent
effectively
scramble
diffuse
data,
also
introducing
novel
forward
reverse
diffusion
strategy
in
process
enhance
efficiency.
Through
experiments
various
images,
verify
algorithm’s
effectiveness
improving
strength,
reducing
leakage
risks,
security.
Finally,
results
keyspace
analysis,
histogram
correlation
entropy
demonstrate
scheme
high
practicability,
along
good
application
prospects
practical
value.
Language: Английский