Mathematical Modeling and Computing,
Journal Year:
2023,
Volume and Issue:
10(4), P. 1154 - 1163
Published: Jan. 1, 2023
Ozone
(O3)
from
the
troposphere
is
one
of
substances
that
has
a
strong
effect
on
air
pollution
in
city
Tanger.
Prediction
this
pollutant
can
have
positive
improvements
quality.
This
paper
presents
new
approach
combining
deep-learning
algorithms
and
Holt–Winters
method
order
to
detect
peaks
obtain
more
accurate
forecasting
model.
Given
LSTM
an
extremely
powerful
algorithm,
we
hybridized
with
enhance
Making
use
multiple
accuracy
metrics,
models'
efficiency
investigated.
Empirical
findings
reveal
superiority
hybrid
model
by
providing
forecasts
are
index
agreement
equal
0.91.
Scientific Reports,
Journal Year:
2022,
Volume and Issue:
12(1)
Published: Dec. 21, 2022
In
this
study,
the
rheological
behavior
and
dynamic
viscosity
of
10W40
engine
oil
in
presence
ternary-hybrid
nanomaterials
cerium
oxide
(CeO2),
graphene
(GO),
silica
aerogel
(SA)
were
investigated
experimentally.
Nanofluid
was
measured
over
a
volume
fraction
range
VF
=
0.25-1.5%,
temperature
T
5-55
°C,
shear
rate
SR
40-1000
rpm.
The
preparation
nanofluids
involved
two-step
process,
dispersed
SAE
using
magnetic
stirrer
ultrasonic
device.
addition,
CeO2,
GO,
SA
nanoadditives
underwent
X-ray
diffraction-based
structural
analysis.
non-Newtonian
(pseudoplastic)
nanofluid
at
all
temperatures
fractions
is
revealed
by
analyzing
stress,
viscosity,
power-law
model
coefficients.
However,
tend
to
Newtonian
low
temperatures.
For
instance,
declines
with
increasing
between
4.51%
(at
5
°C)
41.59%
55
for
1.5
vol%
nanofluid.
experimental
results
demonstrated
that
decreasing
fraction.
assuming
constant
100
rpm
increase
from
increases
least
95.05%
(base
fluid)
no
more
than
95.82%
(1.5
nanofluid).
Furthermore,
0
1.5%,
minimum
14.74%
maximum
35.94%
°C).
Moreover,
different
methods
(COMBI
algorithm,
GMDH-type
ANN,
RSM)
used
develop
models
nanofluid's
their
accuracy
complexity
compared.
COMBI
algorithm
R2
0.9995
had
highest
among
developed
models.
Additionally,
RSM
able
generate
predictive
complexity.
Environment International,
Journal Year:
2023,
Volume and Issue:
175, P. 107931 - 107931
Published: April 15, 2023
This
study
uses
machine
learning
(ML)
models
for
a
high-resolution
prediction
(0.1°×0.1°)
of
air
fine
particular
matter
(PM2.5)
concentration,
the
most
harmful
to
human
health,
from
meteorological
and
soil
data.
Iraq
was
considered
area
implement
method.
Different
lags
changing
patterns
four
European
Reanalysis
(ERA5)
variables,
rainfall,
mean
temperature,
wind
speed
relative
humidity,
one
parameter,
moisture,
were
used
select
suitable
set
predictors
using
non-greedy
algorithm
known
as
simulated
annealing
(SA).
The
selected
simulate
temporal
spatial
variability
PM2.5
concentration
over
during
early
summer
(May-July),
polluted
months,
three
advanced
ML
models,
extremely
randomized
trees
(ERT),
stochastic
gradient
descent
backpropagation
(SGD-BP)
long
short-term
memory
(LSTM)
integrated
with
Bayesian
optimizer.
distribution
annual
average
revealed
population
whole
is
exposed
pollution
level
above
standard
limit.
changes
in
temperature
moisture
humidity
month
before
can
predict
May-July.
Results
higher
performance
LSTM
normalized
root-mean-square
error
Kling-Gupta
efficiency
13.4%
0.89,
compared
16.02%
0.81
SDG-BP
17.9%
0.74
ERT.
could
also
reconstruct
observed
MapCurve
Cramer's
V
values
0.95
0.91,
0.9
0.86
SGD-BP
0.83
0.76
provided
methodology
forecasting
at
high
resolution
peak
months
freely
available
data,
which
be
replicated
other
regions
generating
maps.
Scientific Reports,
Journal Year:
2023,
Volume and Issue:
13(1)
Published: May 17, 2023
Climatic
condition
is
triggering
human
health
emergencies
and
earth's
surface
changes.
Anthropogenic
activities,
such
as
built-up
expansion,
transportation
development,
industrial
works,
some
extreme
phases,
are
the
main
reason
for
climate
change
global
warming.
Air
pollutants
increased
gradually
due
to
anthropogenic
activities
health.
Nitrogen
Dioxide
(NO2),
Carbon
Monoxide
(CO),
Aerosol
Optical
Depth
(AOD)
truthfully
important
air
quality
measurement
because
those
more
harmful
environment
human's
Earth
observational
Sentinel-5P
applied
monitoring
pollutant
chemical
conditions
in
atmosphere
from
2018
2021.
The
cloud
computing-based
Google
Engine
(GEE)
platform
components
atmosphere.
NO2
variation
indicates
high
during
time
of
activities.
(CO)
also
located
between
two
1-month
different
maps.
2020
2021
results
indicate
AQI
where
2019
low
throughout
year.
Kolkata
have
seven
station
nitrogen
dioxide
recorded
102
(2018),
48
(2019),
26
(2020)
98
(2021),
Delhi
stations
99
49
37
(2020),
107
(2021).
Delhi,
Kolkata,
Mumbai,
Pune,
Chennai
huge
fluctuations
study
periods,
~
50-60%
was
recent
time.
AOD
noticed
Uttar
Pradesh
2020.
These
that
investigation
much
necessary
future
planning
management
otherwise;
our
planet
earth
mostly
affected
by
climatic
maybe
life
does
not
exist.
Energies,
Journal Year:
2022,
Volume and Issue:
16(1), P. 109 - 109
Published: Dec. 22, 2022
In
recent
years,
there
has
been
an
increased
focus
on
developing
and
utilizing
renewable
energy
resources
due
to
several
factors,
including
environmental
concerns,
rising
fuel
costs,
the
limited
supply
of
conventional
fossil
fuels.
The
most
appealing
green
conversion
technology
is
solar
energy,
its
efficient
application
can
help
world
achieve
Sustainable
Development
Goal
7:
Access
affordable,
clean
energy.
Irradiance,
latitude,
longitude,
tilt
angle,
orientation
are
a
few
variables
that
affect
functioning
photovoltaic
(PV)
system.
Additionally,
factors
like
dust
accumulation
soiling
panel
surfaces
impact
cost
maintaining
producing
electricity
from
PV
Dust
characteristics
(kind,
size,
shape,
meteorological
elements),
one
largest
affecting
performance,
need
be
investigated
devise
specific
solutions
for
efficiently
harnessing
essential
findings
ongoing
investigations
deposition
surface
structures
various
mitigating
measures
tackle
issues
presented
in
this
review
study.
This
comprehensive
assessment
critically
evaluates
current
research
effect
system
performance
improvement
techniques
determine
academic
community’s
future
priorities.