Bioengineering,
Год журнала:
2024,
Номер
11(12), С. 1281 - 1281
Опубликована: Дек. 17, 2024
Multispectral
transmission
imaging
has
emerged
as
a
promising
technique
for
breast
tissue
with
high
resolution.
However,
the
method
encounters
challenges
such
low
grayscale,
noisy
images
weak
signals,
primarily
due
to
strong
absorption
and
scattering
of
light
in
tissue.
A
common
approach
improve
signal-to-noise
ratio
(SNR)
overall
image
quality
is
frame
accumulation.
factors
camera
jitter
respiratory
motion
during
acquisition
can
cause
misalignment,
degrading
accumulated
image.
To
address
these
issues,
this
study
proposes
novel
registration
method.
hybrid
combining
genetic
algorithm
(GA)
constriction
factor-based
particle
swarm
optimization
(CPSO),
referred
GA-CPSO,
applied
before
The
efficiency
enhanced
by
incorporating
squared
factor
(SCF),
which
speeds
up
process
improves
convergence
towards
optimal
solutions.
GA
identifies
potential
solutions,
are
then
refined
CPSO
expedite
convergence.
This
methodology
was
validated
on
sequence
frames
taken
at
600
nm,
620
670
760
nm
wavelength
proved
enhancement
accuracy
various
mathematical
assessments.
It
demonstrated
(99.93%)
reduced
time.
As
result,
GA-CPSO
significantly
effectiveness
accumulation
enhances
quality.
explored
groundwork
precise
multispectral
segmentation
classification.
Energies,
Год журнала:
2025,
Номер
18(8), С. 2110 - 2110
Опубликована: Апрель 19, 2025
This
paper
proposes
a
novel
hybrid
metaheuristic
algorithm
(MHA)
for
maximum
power
point
tracking
(MPPT),
integrating
particle
swarm
optimization
(PSO),
the
differential
evolution
(DEA),
and
grey
wolf
optimizer
(GWO).
The
proposed
method
is
inspired
by
structural
phases
of
white
shark
(WSO),
recently
introduced
MHA.
study
evaluates
MPPT
performance
WSO
compares
it
with
approach
to
provide
insights
into
optimal
selection.
key
contributions
include
an
in-depth
analysis
framework,
benchmarking
its
against
model.
Both
algorithms
are
implemented
in
system
assessed
based
on
speed,
accuracy,
adaptability.
results
indicate
that
achieves
faster
convergence
due
biologically
design,
whereas
model,
despite
requiring
additional
coordination
time,
ensures
comprehensive
search
space
exploration.
Notably,
excels
dynamic
efficiency,
which
crucial
accurately
following
time-varying
P-V
curves.
underscores
trade-off
between
speed
demonstrating
while
advantageous
rapid
tracking,
enhances
overall
under
conditions.
These
findings
offer
valuable
optimizing
strategies
renewable
energy
systems.
Energy Reports,
Год журнала:
2024,
Номер
11, С. 6109 - 6125
Опубликована: Июнь 1, 2024
Proton
exchange
membrane
fuel
cells
(PEMFCs)
are
considered
a
promising
renewable
energy
source
and
have
sparked
lot
of
interest
over
the
last
few
years
due
to
their
robust
efficiency,
low
operating
temperature,
longevity.
The
PEMFC's
electrochemical
model
has
seven
unknown
parameters,
which
not
given
in
manufacturer's
datasheets
need
be
accurately
estimated
present
more
accurate
model,
leading
improved
efficiency
performance
PEMFC
systems.
estimation
those
parameters
been
dealt
with
as
complex
non-linear
optimization
problem
that
needs
powerful
algorithm
solve
it.
existing
algorithms
still
some
disadvantages,
such
falling
into
local
minima
convergence
speed,
make
them
ineligible
this
complicated
acceptable
accuracy
computational
cost.
Therefore,
study
presents
new
parameter
technique
for
estimating
accurately,
thereby
achieving
precise
modeling
PEMFCs.
This
called
IKOA
is
based
on
integrating
Kepler
(KOA)
novel
Lévy-Normal
(LN)
mechanism
strengthen
its
exploration
exploitation
capabilities
against
multimodal
problem.
Lévy
flight
aims
improve
KOA's
operator
accelerate
speed
toward
near-optimal
solution,
thus
minimizing
cost;
meanwhile,
normal
distribution
used
operator,
aiding
escape
minima.
proposed
KOA
herein
evaluated
several
rival
using
six
well-known
commercial
stacks
highlight
effectiveness.
Key
metrics
cost,
fitness
measures,
statistical
validation
through
Wilcoxon
rank-sum
test
IKOA's
effective
enhancing
predictive
operational
numerical
findings
show
high
superiority
all
optimizers
solved
benchmarks.
Mathematics,
Год журнала:
2024,
Номер
12(7), С. 965 - 965
Опубликована: Март 24, 2024
Particle
Swarm
Optimization
(PSO)
is
facing
more
challenges
in
solving
high-dimensional
global
optimization
problems.
In
order
to
overcome
this
difficulty,
paper
proposes
a
novel
PSO
variant
of
the
hybrid
Sine
Cosine
Algorithm
(SCA)
strategy,
named
Velocity
Four
(VFSCPSO).
The
introduction
SCA
strategy
velocity
formulation
ensures
that
optimal
solution
found
accurately.
It
increases
flexibility
PSO.
A
series
experiments
are
conducted
on
CEC2005
test
suite
with
compositional
algorithms,
algorithmic
variants,
and
good
intelligent
algorithms.
experimental
results
show
algorithm
effectively
improves
overall
performance
algorithms;
Friedman
proves
has
competitiveness.
also
performs
better
PID
parameter
tuning.
Therefore,
VFSCPSO
able
solve
problems
way.
IEEE Open Journal of the Communications Society,
Год журнала:
2024,
Номер
5, С. 4186 - 4206
Опубликована: Янв. 1, 2024
Employing
Reconfigurable
Intelligent
Surface
(RIS)
is
an
advanced
strategy
to
enhance
the
efficiency
of
wireless
communication
systems.
However,
number
and
positions
RISs
elements
are
still
challenging
require
a
smart
optimization
framework.
This
paper
aims
optimize
subject
technical
limitations
average
achievable
data
rate
with
consideration
practical
overlapping
between
associated
multi-RISs
in
In
this
regard,
Differential
evolution
optimizer
(DEO)
algorithm
created
minimize
RIS
devices
be
installed.
Accordingly,
number,
positions,
phase
shift
matrix
coefficients
then
jointly
optimized
using
intended
DEO.
Also,
it
contrasted
several
recent
algorithms,
including
Particle
swarm
(PSO),
Gradient-based
(GBO),
Growth
(GO),
Seahorse
(SHO).
The
outcomes
from
simulation
demonstrate
high
proposed
DEO
GO
obtaining
100%
feasibility
for
finding
minimum
under
different
threshold
values
rates.
PSO
scores
comparable
result
99.09%,
while
SHO
GBO
attain
poor
rates
66.36%
53.94%,
respectively.
Nevertheless,
excellence
becomes
evident
through
having
lowest
when
compared
other
algorithms.
Numerically,
drives
improvements
by
5.13%,
15.68%,
30.58%,
51.01%
GO,
PSO,
GBO,
European Journal of Electrical Engineering and Computer Science,
Год журнала:
2024,
Номер
8(4), С. 6 - 20
Опубликована: Июль 17, 2024
Photovoltaic
systems
can
be
used
for
both
off-grid
and
grid-connected
applications.
Solar
use
a
smart
technology
called
Maximum
Power
Point
Tracker
(MPPT)
to
squeeze
the
most
power
possible
out
of
sun.
MPPT
works
by
constantly
fine-tuning
voltage
from
solar
panels
using
special
component
(DC-DC
converter)
ensure
they
operate
at
their
peak
efficiency
This
project
offers
new
analysis
along
with
basic
ways
it
responds
changing
conditions.
It
examines
how
different
DC-DC
converter
designs
work
algorithms
under
various
environmental
factors.
The
emphasizes
importance
choosing
right
controller
maximum
production
your
system.
compares
traditional
topologies
commonly
found
in
energy
systems.
also
includes
technical
comparison
these
approaches,
focusing
on
factors
like
specific
design
elements,
quickly
system
tracks
changes
output
(tracking
speed),
overall
efficiency.
Journal of Innovative Engineering and Natural Science,
Год журнала:
2024,
Номер
4(2), С. 514 - 529
Опубликована: Май 31, 2024
Because
of
the
Magnetic
Levitation
System's
(MLS)
low
energy
consumption
and
little
friction
two
factors
that
are
deemed
crucial
for
unstable
nonlinear
systems
MLS
research
is
now
being
conducted
in
engineering
area.
This
article
discusses
comparison
performance
control
theories
used
by
applying
advanced
to
cope
with
complexity
structure
controllability
difficulties
MLS.
The
methods
compared
Proportional–Integral–Derivative
(PID)
Self-Tuning
Fuzzy
PID
(STFPID)
methods.
These
were
developed
MATLAB
environment.
model
created
environment
was
subjected
suggested
methods,
outcomes
compared.
unequivocally
demonstrate
location
may
make
use
STFPID
techniques.
Four
criteria
compare
approaches
performances.
criteria;
rise
time,
settling
percent
maximum
overshoot
value.
It
clearly
seen
results
method
provides
greater
stability
than
method.