Alexandria Engineering Journal,
Journal Year:
2023,
Volume and Issue:
85, P. 300 - 306
Published: Nov. 23, 2023
Titanium
matrix
composites
(TMCs)
offer
superior
specific
mechanical
properties
compared
to
monolithic
alloys.
However,
the
complex
interdependent
effects
of
composition
and
processing
on
resulting
microstructure
make
experimental
determination
optimal
TMC
formulations
challenging.
This
work
explored
a
materials
informatics
approach
integrating
machine
learning
(ML)
modeling
with
targeted
fabrication
characterization
for
accelerated
data-driven
design
TMCs.
A
dataset
368
data
points
composition,
method
various
TMCs
was
compiled
from
literature.
Five
ML
regression
algorithms
were
implemented
predict
density,
hardness
strength
composition-processing
features.
Among
models,
random
forest
achieved
highest
accuracy
R2
scores
above
0.93
low
errors.
Fabrication
Ti-6Al-4
V/SiC
using
ML-guided
parameters
showed
excellent
agreement
between
predicted
experimentally
measured
properties.
The
models
outperformed
conventional
empirical
predictions
by
structure-property
linkages
data.
integrated
computational-experimental
framework
can
guide
rapid
identification
property-optimized
reducing
trial-and-error.
Further
should
focus
physics-based
feature
engineering
active
learning.
demonstrated
here
shows
promise
accelerating
development
high-performance
The Science of The Total Environment,
Journal Year:
2023,
Volume and Issue:
903, P. 166846 - 166846
Published: Sept. 9, 2023
Phthalate
esters
(PAEs)
are
known
as
of
phthalic
acid,
which
commonly
used
plasticizers
in
the
plastic
industry.
Due
to
lack
chemical
bonding
with
polymer
matrix,
these
compounds
easily
separated
from
products
and
enter
environment.
To
investigate
growth
concentration
PAEs
like
DBP
(Dibutyl
phthalate),
DEP
(Diethyl
DMP
(Dimethyl
DIBP
(Diisobutyl
TPMBP
(tris(2-methylbutyl)
phosphate)
different
water
sources,
a
study
January
01,
1976,
April
30,
2021,
was
implemented
via
global
systematic
review
plus
meta-analysis
which,
109
articles
comprising
4061
samples,
4
types,
27
countries
were
included.
Between
various
types
river
lake
most
contaminated
resources
PAEs.
Among
all
studies
PAEs,
values
>15,573
mg
L−1
have
highest
average
value
0.002885
has
lowest
sources.
The
sources
Nigeria
least
China.
Besides,
Monte-Carlo
simulation
indicated
that
for
minimum
lower
than
acceptable
limit
generated.
However,
population
(>75
%)
is
at
risk
both
adults
child
cases.
For
situation
much
worse,
simulations
not
providing
one
case
where
R
index
1E-06.
Industrial & Engineering Chemistry Research,
Journal Year:
2023,
Volume and Issue:
62(11), P. 4655 - 4664
Published: Jan. 11, 2023
Today,
the
development
of
green
nanocatalysts
is
among
popular
topics
due
to
need
for
energy
production
and
cleaning
organic
pollutants.
In
this
approach,
Bacillus
thuringiensis,
a
bacterium,
was
used
as
biosupport
ruthenium/nickel
co-doped
zinc
nanoparticles
(btRNZn
NPs)
release
hydrogen
from
methanolysis
sodium
borohydride
(NaBH4).
addition,
their
photocatalytic
activity
reported
against
Methyl
Orange
(MO)
dye.
This
study
focused
on
preparation,
characterization,
catalytic
btRNZn
biocatalyst
NaBH4
removal
MO
According
TEM
analysis,
average
size
NPs
found
be
11.78
nm;
in
showed
photodegradation
effect
68.2%
dye
at
90
min,
its
mechanism
discussed.
The
effects
catalyst,
substrate,
temperature
reaction
presence
catalyst
were
investigated
extensively.
kinetics
calculated,
TOF,
activation
energy,
enthalpy
measured
2497.14
h–1,
14.89
kJ/mol,
12.35
respectively.
It
observed
that
process
first-order
based
amount
substrate.
aimed
synthesize
nanobiocatalyst
by
biological
method,
it
will
great
photocatalyst
prevent
wastewater
pollution;
also,
can
an
excellent
produce
methanolysis.
application
solar
photocatalysis
pollution
research
through
creation
are
both
made
clear
these
studies.
Alexandria Engineering Journal,
Journal Year:
2022,
Volume and Issue:
65, P. 809 - 823
Published: Oct. 4, 2022
Due
to
the
lack
of
analytical
solutions
for
wear
rates
prediction
nanocomposites,
we
present
a
modified
machine
learning
method
named
Dendritic
Neural
(DN)
predict
performance
copper-alumina
(Cu-Al
2
O
3
)
nanocomposites
that
have
large
applicability
in
electronics.
This
modification
aims
at
determining
optimal
weights
DN
since
they
largest
influence
on
its
performance.
To
achieve
this
improvement
new
meta-heuristic
technique
Artificial
Hummingbird
Algorithm
(AHA)
was
used.
The
model
applied
and
coefficient
friction
Cu-Al
developed
study.
Electroless
coating
Al
nanoparticles
with
silver
(Ag)
performed
improve
wettability
followed
by
ball
milling
compaction
consolidate
composites.
microstructural,
mechanical
properties
produced
composites
different
content
were
characterized.
evaluated
using
sliding
test
load
speeds.
AHA
algorithm
showed
excellent
predictability
rate
reinforcement
up
10%.
Alexandria Engineering Journal,
Journal Year:
2022,
Volume and Issue:
67, P. 129 - 141
Published: Dec. 29, 2022
Nickel-ferrite
Ni-Fe
(molar
ratio
1:2)
were
synthesised
and
calcined
at
different
temperatures.
The
catalytic
performances
of
for
methane
decomposition
production
hydrogen
carbon
nanostructures
evaluated
various
calcination
(350–800
°C)
reaction
temperatures
(700–800
°C).
Fresh
spent
catalysts
characterized
using
scanning
electron
microscopy
(SEM),
BET
surface
area,
X-ray
diffraction
(XRD),
TGA
Raman
spectroscopy.
XRD
results
revealed
the
formation
highly
crystalline
NiFe2O4
in
samples,
while
alloys
observed
catalysts.
catalyst
has
a
mesoporous
structure
with
monomodal
pore
distribution.
area
decreased
from
107.0
to
3.8
m2/g
increasing
temperature
350
800
°C.
Methane
conversion,
48.50%,
rate,
97.70
×
10-5
mol
H2
g−1
min−1
was
obtained
activity
slightly
improved
by
temperature.
SEM
images
some
filamentous
over
all
except
that
operated
700
studies
deposited
increased
increase
achieved
42.50
59.32
wt%,
respectively.
graphitization
decreases
as
increased.
Alexandria Engineering Journal,
Journal Year:
2023,
Volume and Issue:
76, P. 193 - 219
Published: June 19, 2023
Understanding
the
physical
properties
of
distillate
petroleum
fuels
like
gasoline
and
diesel
is
very
critical
to
ensure
normal
operation
internal
combustion
(IC)
engines
with
regards
processes
spray
atomization,
heating,
evaporation
etc.
Two
most
important
are
density
viscosity.
Many
factors
such
as
molecular
structure,
weight,
temperature
effect
fuel.
The
present
work
deals
development
a
machine
learning
model
for
predicting
viscosity
containing
oxygenated
chemical
classes
alcohols,
esters,
ketones
aldehydes.
was
developed
using
structure
compounds
expressed
in
form
functional
groups
inputs.
164
pure
spanning
various
families
14
blends
known
compositions
collected
from
literature.
An
artificial
neural
network
(ANN)
tool
Matlab.
Each
ANN
tested
against
15%
data
results
show
that
models
were
able
successfully
predict
unseen
points
good
accuracy.
A
regression
coefficient
0.99
(for
density)
0.98
viscosity)
obtained
test
set.
can
be
used
screen
real
drop
bio-fuels.
Alexandria Engineering Journal,
Journal Year:
2023,
Volume and Issue:
71, P. 161 - 172
Published: March 25, 2023
A
belt
conveyor
system
is
one
of
the
essential
equipment
in
coal
mining.
The
damages
to
belts
are
hazardous
because
they
would
affect
stable
operation
a
whilst
impairing
mining
efficiency.
To
address
these
problems,
novel
damage
detection
method
based
on
CenterNet
proposed
this
paper.
fusion
feature-wise
and
response-wise
knowledge
distillation
proposed,
which
balances
performance
size
deep
neural
network.
Fused
Channel-Spatial
Attention
compress
latent
feature
maps
efficiently,
Kullback-Leibler
divergence
introduced
minimize
distribution
distance
between
student
teacher
networks.
Experimental
results
show
that
lightweight
object
model
reaches
92.53%
mAP
65.8
FPS.
can
detect
efficiently
accurately,
indicates
its
high
potential
deploy
end
devices.