Processes,
Journal Year:
2023,
Volume and Issue:
11(5), P. 1582 - 1582
Published: May 22, 2023
A
branch
line
coupler
(BLC)
with
ultra-compact
size
and
harmonic
suppression
ability
using
an
LCL
filter
meandered
stubs
is
proposed
in
this
paper.
There
are
some
important
factors
microstrip
design,
including
reduction,
suppression,
low
insertion
loss.
Thus,
improving
each
of
these
will
contribute
to
a
more
efficient
design.
In
the
circuit,
for
first
time,
filters,
four
T-shaped
circuits
open-ended
stubs,
were
used
together
reduce
circuit
suppress
unwanted
harmonics.
The
incorporated
BLC
branches,
resulted
superior
reduction
presented
BLC.
correctly
worked
at
900
MHz
300
operating
bandwidth,
which
showed
33%
fractional
bandwidth
(FBW).
Additionally,
wide
band
from
1.4
GHz
8.8
GHz,
than
20
dB
attenuation
level
was
obtained,
suppressed
second
ninth
overall
only
11
mm
×
10.4
(0.044
λ
0.042
λ)
while
conventional
61.5
62.5
(0.25
25
λ).
had
very
small
occupied
3%
coupler,
corresponded
97%
reduction.
To
best
authors’
knowledge,
date,
has
been
obtained
among
published
couplers.
Furthermore,
experimental
results
verified
simulated
analyzed
technique
demonstrate
its
potential
performance
miniaturizing
other
similar
BLCs.
Electronics,
Journal Year:
2022,
Volume and Issue:
11(21), P. 3457 - 3457
Published: Oct. 25, 2022
Brain
tumor
(BTs)
is
considered
one
of
the
deadly,
destructive,
and
belligerent
disease,
that
shortens
average
life
span
patients.
Patients
with
misdiagnosed
insufficient
medical
treatment
BTs
have
less
chance
survival.
For
analysis,
magnetic
resonance
imaging
(MRI)
often
utilized.
However,
due
to
vast
data
produced
by
MRI,
manual
segmentation
in
a
reasonable
period
time
difficult,
which
limits
application
standard
criteria
clinical
practice.
So,
efficient
automated
techniques
are
required.
The
accurate
early
detection
difficult
challenging
task
biomedical
imaging.
Automated
an
issue
because
considerable
temporal
anatomical
variability
brain
tumors.
Early
therefore
essential.
To
detect
cancers
or
tumors,
different
classical
machine
learning
(ML)
algorithms
been
main
difficulty
these
models
manually
extracted
features.
This
research
provides
deep
hybrid
(DeepTumorNetwork)
model
binary
classification
overcomes
above-mentioned
problems.
proposed
method
GoogLeNet
architecture
CNN
eliminating
5
layers
adding
14
extracts
features
automatically.
On
same
Kaggle
(Br35H)
dataset,
key
performance
indicator
was
compared
transfer
(TL)
(ResNet,
VGG-16,
SqeezNet,
AlexNet,
MobileNet
V2)
ML/DL.
Furthermore,
approach
outperformed
based
on
(Acc,
Recall,
Precision,
F1-Score)
classification.
Additionally,
methods
exhibited
high
measures,
Accuracy
(99.51%),
Precision
(99%),
Recall
(98.90%),
F1-Score
(98.50%).
approaches
show
its
superiority
recent
sibling
for
current
using
MRI
images.
IEEE Access,
Journal Year:
2023,
Volume and Issue:
11, P. 12460 - 12473
Published: Jan. 1, 2023
Obesity
and
laziness
are
some
of
the
common
issues
in
majority
youth
today.
This
has
led
to
development
a
proposed
exergaming
solution
where
users
can
play
first-person
physical
games.
research
study
not
only
proposes
for
fitness
form
game
using
wearable
sensors
but
also
multi-purpose
system
that
provides
different
applications
when
trained
domain-specific
dataset.
Critical
tasks
gesture
recognition
depiction
virtual
reality
be
applied
many
domains
crime
detection,
fitness,
healthcare,
online
learning,
sports.
In
particular,
enables
user
perform,
detect,
depict
gestures
game.
First,
pre-processes
input
data
by
applying
median
filter
overcome
anomalies.
Then,
features
extracted
through
convolutional
neural
network,
power
spectral
density,
skewness,
kurtosis
methods.
Further,
optimizes
grey
wolf
optimization.
Lastly,
feature
set
which
is
optimized
fed
recurrent
network
classification.
When
Compared
traditional
methods,
suggested
gives
better
results
while
being
easier
use.
The
IMSporting
behaviors
(IMSB)
dataset
includes
badminton
other
activities,
WISDM
locomotor
motions,
ERICA
variety
exercises,
were
used
experimentation.
According
experimental
findings,
approach
outperformed
current
showed
detection
accuracies
85.01%,
88.46%,
93.18%
over
IMSB,
WISDM,
datasets,
respectively.
Micromachines,
Journal Year:
2023,
Volume and Issue:
14(3), P. 553 - 553
Published: Feb. 26, 2023
In
this
paper,
two
novel
dual-band
bandpass
filters
(BPFs)
and
a
compact
quad-channel
diplexer
working
at
1.7/3.3
GHz
1.9/3.6
are
proposed.
the
proposed
design,
triangular
loop
resonators
rectangular
used
together
to
reduce
circuit
size
improve
performances.
Insertion
loss
(IL)
return
(RL)
of
better
than
0.8
dB
21
dB,
respectively,
these
four
operating
frequencies.
Output
ports
isolation
parameter
is
30
dB.
With
achieved
specifications,
can
be
in
L
S
band
applications.
Energies,
Journal Year:
2022,
Volume and Issue:
15(6), P. 1986 - 1986
Published: March 9, 2022
In
the
current
paper,
a
novel
technique
is
represented
to
control
liquid
petrochemical
and
petroleum
products
passing
through
transmitting
pipe.
A
simulation
setup,
including
an
X-ray
tube,
detector,
pipe,
was
conducted
by
Monte
Carlo
N
Particle-X
version
(MCNPX)
code
examine
two-by-two
mixture
of
four
diverse
(ethylene
glycol,
crude
oil,
gasoline,
gasoil)
in
various
volumetric
ratios.
As
feature
extraction
system,
twelve
time
characteristics
were
extracted
from
received
signal,
most
effective
ones
selected
using
correlation
analysis
present
reasonable
inputs
for
neural
network
training.
Three
Multilayers
perceptron
(MLP)
networks
applied
indicate
volume
ratio
three
kinds
products,
fourth
product
can
be
feasibly
achieved
results
aforementioned
networks.
this
study,
increasing
accuracy
placed
on
agenda,
RMSE
<
1.21
indicates
high
accuracy.
Increasing
predicting
ratio,
which
due
use
appropriate
as
input,
important
innovation
why
proposed
system
used
efficient
method
oil
industry.
Energies,
Journal Year:
2022,
Volume and Issue:
15(21), P. 8300 - 8300
Published: Nov. 7, 2022
Despite
the
development
of
alternative
energy
sources,
oil
and
gas
still
remain
predominant
sources
in
most
countries
world.
Due
to
gradual
hydrocarbon
reserve
depletion
existing
downward
trend
production
level,
there
is
a
need
search
for
methods
technical
approaches
level
off
falling
rates.
Chemically
enhanced
recovery
(EOR)
by
surfactant
solution
injections
are
one
possible
addressing
this
issue
already
developed
fields.
Most
often,
surfactants
injected
together
with
polymers
or
alkalis.
These
technologies
called
surfactant–polymer
(SP)
alkali–surfactant–polymer
(ASP)
flooding.
Basically,
SP
ASP
have
been
distributed
China
Canada.
In
article,
addition
these
countries,
we
paid
attention
results
pilot
full-scale
tests
Russia,
Hungary,
Oman.
This
study
was
comprehensive
overview
laboratory
field
solutions
used
displacement
technologies.
The
first
part
article
discussed
physical
fundamentals
interaction
surfactants.
second
presented
main
chemical
reagents
increase
recovery.
third
part,
described
facilities
preparation
injection
Further,
abovementioned
were
considered.
discussion
based
on
considered
results,
issues
uncertainties
identified,
which
some
recommendations
proposed
improving
process
particular,
identified
an
area
additional
scientifically
practical
research.
outcomes
work
will
provide
clearer
picture
ASP,
as
well
information
about
their
limitations,
current
challenges,
potential
paths
forward
from
economic
technological
point
view.
Fractal and Fractional,
Journal Year:
2023,
Volume and Issue:
7(2), P. 179 - 179
Published: Feb. 10, 2023
Determining
the
amount
of
void
fraction
multiphase
flows
in
pipelines
oil,
chemical
and
petrochemical
industries
is
one
most
important
challenges.
Performance
capacitance
based
two
phase
flow
meters
highly
depends
on
fluid
properties.
Fluctuation
liquid
properties
such
as
density,
due
to
temperature
pressure
changes,
would
cause
massive
errors
determination
fraction.
A
common
approach
fix
this
problem
periodic
recalibration
system,
which
a
tedious
task.
The
aim
study
proposing
method
artificial
intelligence
(AI),
offers
advantage
intelligent
measuring
regardless
changes
without
need
for
recalibration.
To
train
AI,
data
set
different
phases
required.
Although
it
possible
obtain
required
from
experiments,
time-consuming
also
incorporates
its
own
specific
safety
laboratory
consideration,
particularly
working
with
flammable
liquids
gasoline,
oil
gasoil.
So,
COMSOL
Multiphysics
software
was
used
model
homogenous
regime
two-phase
five
fractions.
validate
simulation
geometry,
initially
an
experimental
setup
including
concave
sensor
measure
by
LCR
meter
case
that
water
phase,
established.
After
validation
simulated
geometry
sensor,
ring
investigate
best
type.
It
found
type
has
better
sensitivity.
Therefore,
fractions
inside
pipe.
Finally,
were
Multi-Layer
Perceptron
(MLP)
neural
network
MATLAB
software.
trained
MLP
able
predict
independent
density
Mean
Absolute
Error
(MAE)
1.74.
Processes,
Journal Year:
2023,
Volume and Issue:
11(3), P. 940 - 940
Published: March 20, 2023
Measuring
the
void
fraction
of
different
multiphase
flows
in
various
fields
such
as
gas,
oil,
chemical,
and
petrochemical
industries
is
very
important.
Various
methods
exist
for
this
purpose.
Among
these
methods,
capacitive
sensor
has
been
widely
used.
The
thing
that
affects
performance
capacitance
sensors
fluid
properties.
For
instance,
density,
pressure,
temperature
can
cause
vast
errors
measurement
fraction.
A
routine
calibration,
which
grueling,
one
approach
to
tackling
issue.
In
present
investigation,
an
artificial
neural
network
(ANN)
was
modeled
measure
gas
percentage
a
two-phase
flow
regardless
liquid
phase
type
changes,
without
having
recalibrate.
goal,
new
combined
capacitance-based
designed.
This
simulated
with
COMSOL
Multiphysics
software.
Five
liquids
were
simulated:
gasoil,
gasoline,
crude
water.
To
estimate
homogeneous
distinct
liquid,
data
obtained
from
used
input
train
multilayer
perceptron
(MLP).
proposed
MATLAB
Using
accurate
metering
system,
MLP
model
could
predict
mean
absolute
error
(MAE)
4.919.
Fractal and Fractional,
Journal Year:
2023,
Volume and Issue:
7(4), P. 283 - 283
Published: March 24, 2023
Global
demand
for
fossil
fuels
has
increased
the
importance
of
flow
measurement
in
oil
sector.
As
a
result,
new
submarket
flowmeter
business
opened
up.
To
improve
accuracy
gamma-based
two-phase
flowmeters,
this
study
employs
time-feature
extraction
methods,
particle
swarm
optimization
(PSO)
based
feature
selection
system,
and
an
artificial
neural
network.
This
article
proposes
fraction
detection
system
that
uses
137Cs
gamma
source,
two
NaI
detectors
recording
photons,
Pyrex-glass
pipe
between
them.
The
Monte
Carlo
N
Particle
method
was
used
to
simulate
geometry
mentioned
above.
Thirteen
time-domain
features
were
extracted
from
raw
data
recorded
by
both
detectors.
Optimal
characteristics
identified
with
help
PSO.
procedure
resulted
identification
eight
efficient
features.
input-output
relationship
approximated
using
Multi-Layer
Perceptron
(MLP)
innovation
present
research
is
use
technique
on
PSO
algorithm
determine
volume
percentages,
results
such
as:
(1)
introducing
appropriate
time
determining
percentages;
(2)
achieving
less
than
0.37
root
mean
square
error
(RMSE)
0.14
(MSE)
while
predicting
components
gas-liquid
flow;
(3)
reducing
calculation
load.
Utilizing
optimization-based
techniques
allowed
meaningful
inputs,
which
decreased
computations
boosting
precision
presented
system.
Electronics,
Journal Year:
2022,
Volume and Issue:
11(3), P. 459 - 459
Published: Feb. 3, 2022
Scale
formation
inside
oil
and
gas
pipelines
is
always
one
of
the
main
threats
to
efficiency
equipment
their
depreciation.
In
this
study,
an
artificial
intelligence
method
presented
provide
flow
regime
volume
percentage
a
two-phase
while
considering
presence
scale
test
pipe.
non-invasive
method,
dual-energy
source
barium-133
cesium-137
isotopes
irradiated,
photons
are
absorbed
by
detector
as
they
pass
through
pipe
on
other
side
The
Monte
Carlo
N
Particle
Code
(MCNP)
simulates
structure
frequency
features,
such
amplitudes
first,
second,
third,
fourth
dominant
frequencies,
which
extracted
from
data
recorded
detector.
These
features
use
radial
basis
function
neural
network
(RBFNN)
inputs,
where
two
networks
also
trained
accurately
determine
correctly
classify
all
patterns,
independent
thickness
in
advantage
proposed
system
study
compared
conventional
systems
that
it
has
better
measuring
precision
well
simpler
(using
instead
two).