Defence Technology,
Год журнала:
2022,
Номер
24, С. 18 - 30
Опубликована: Дек. 1, 2022
The
accurate
and
efficient
prediction
of
explosive
detonation
properties
has
important
engineering
significance
for
weapon
design.
Traditional
methods
predicting
performance
include
empirical
formulas,
equations
state,
quantum
chemical
calculation
methods.
In
recent
years,
with
the
development
computer
deep
learning
methods,
researchers
have
begun
to
apply
performance.
method
advantage
simple
rapid
properties.
However,
some
problems
remain
in
study
based
on
learning.
For
example,
there
are
few
studies
mixed
explosives,
parameters
equation
state
application
predict
formulation
explosives.
Based
an
artificial
neural
network
model
a
one-dimensional
convolutional
model,
three
improved
models
were
established
this
work
aim
solving
these
problems.
training
data
models,
called
JWL
(EOS)
inverse
was
obtained
through
KHT
thermochemical
code.
After
training,
tested
overfitting
using
validation-set
test.
Through
model-accuracy
test,
accuracy
real
formulations
by
comparing
predicted
value
reference
value.
results
show
that
errors
within
10%
3%
pressure
velocity,
respectively.
refers
which
consist
TNT,
RDX
HMX.
correlation
coefficient
between
curves
above
0.99.
error
9%.
This
indicates
utility
engineering.
Journal of Cheminformatics,
Год журнала:
2024,
Номер
16(1)
Опубликована: Окт. 28, 2024
Abstract
Drug
solubility
is
an
important
parameter
in
the
drug
development
process,
yet
it
often
tedious
and
challenging
to
measure,
especially
for
expensive
drugs
or
those
available
small
quantities.
To
alleviate
these
challenges,
machine
learning
(ML)
has
been
applied
predict
as
alternative
approach.
However,
majority
of
existing
ML
research
focused
on
predictions
aqueous
and/or
at
specific
temperatures,
which
restricts
model
applicability
pharmaceutical
development.
bridge
this
gap,
we
compiled
a
dataset
27,000
datapoints,
including
molecules
measured
range
binary
solvent
mixtures
under
various
temperatures.
Next,
panel
models
were
trained
with
their
hyperparameters
tuned
using
Bayesian
optimization.
The
resulting
top-performing
models,
both
gradient
boosted
decision
trees
(light
boosting
extreme
boosting),
achieved
mean
absolute
errors
(MAE)
0.33
LogS
(S
g/100
g)
holdout
set.
These
further
validated
through
prospective
study,
wherein
four
predicted
by
then
in-house
experiments.
This
study
demonstrated
that
accurately
solutes
different
whose
features
closely
align
within
(MAE
<
0.5
LogS).
support
future
facilitate
advancements
field,
have
made
code
openly
available.
Scientific
contribution
Our
advances
state-of-the-art
predicting
leveraging
uniquely
comprehensive
dataset.
Unlike
studies
predominantly
focus
solvents
fixed
our
work
enables
prediction
variety
over
broad
temperature
range,
providing
practical
insights
modeling
realistic
applications.
along
open
access
significant
steps
process
new
molecule
discovery,
analysis
formulation.
Graphical
Molecules,
Год журнала:
2022,
Номер
28(1), С. 322 - 322
Опубликована: Дек. 31, 2022
Energetic
materials
(EMs)
are
the
core
of
weapons
and
equipment.
Achieving
precise
molecular
design
efficient
green
synthesis
EMs
has
long
been
one
primary
concerns
researchers
around
world.
Traditionally,
advanced
were
discovered
through
a
trial-and-error
processes,
which
required
research
development
(R&D)
cycles
high
costs.
In
recent
years,
machine
learning
(ML)
method
matured
into
tool
that
compliments
aids
experimental
studies
for
predicting
designing
EMs.
This
paper
reviews
critical
process
ML
methods
to
discover
predict
EMs,
including
data
preparation,
feature
extraction,
model
construction,
performance
evaluation.
The
main
ideas
basic
steps
applying
analyzed
outlined.
state-of-the-art
about
applications
in
property
prediction
inverse
material
is
further
summarized.
Finally,
existing
challenges
strategies
coping
with
proposed.
Energetic Materials Frontiers,
Год журнала:
2023,
Номер
unknown
Опубликована: Сен. 1, 2023
In
this
study,
machine
learning
(ML)-assisted
regression
modeling
was
conducted
to
predict
the
thermal
decomposition
temperatures
and
explore
factors
that
correlate
with
stability
of
energetic
materials
(EMs).
The
performed
based
on
a
dataset
consisting
885
various
compounds
using
linear
nonlinear
algorithms.
tree-based
models
established
demonstrated
acceptable
predictive
abilities,
yielding
low
mean
absolute
error
(MAE)
31°C.
By
analyzing
through
hierarchical
classification,
study
insightfully
identified
affecting
EMs'
temperatures,
overall
accuracy
improved
targeted
modeling.
SHapley
Additive
exPlanations
(SHAP)
analysis
indicated
descriptors
such
as
BCUT2D,
PEOE_VSA,
MolLog_P,
TPSA
played
significant
role,
demonstrating
process
is
influenced
by
multiple
relating
composition,
electron
distribution,
chemical
bond
properties,
substituent
type
molecules.
Additionally,
Carbon_contents
Oxygen_Balance
proposed
for
characterizing
EMs
showed
strong
correlations
temperatures.
trends
their
SHAP
values
most
suitable
ranges
were
0.2–0.35
−65
−55,
respectively.
Overall,
shows
potential
ML
temperature
prediction
provides
insights
into
characteristics
molecular
descriptors.
Physical Chemistry Chemical Physics,
Год журнала:
2022,
Номер
24(17), С. 9875 - 9884
Опубликована: Янв. 1, 2022
Energetic
materials
(EMs)
are
a
group
of
special
energy
materials,
and
it
is
generally
full
safety
risks
costs
much
to
create
new
EMs.
Thus,
machine
learning
(ML)-aided
discovery
becomes
highly
desired
for
EMs,
as
ML
good
at
risk
cost
reduction.
This
work
decodes
hexanitrobenzene
(HNB)
1,3,5-triamino-2,4,6-trinitrobenzene
(TATB)
two
distinctive
energetic
nitrobenzene
compounds
by
ML,
in
combination
with
theoretical
calculations.
Based
on
series
accurate
models
density,
heat
formation,
bond
dissociation
molecular
flatness,
the
predictions
show
that
HNB
most
among
∼370
000
single
benzene
ring-containing
compounds,
while
TATB
possesses
moderate
content
very
high
safety,
determined
experimentally.
exhibits
significant
power
presents
an
instructive
procedure
using
field
The
ML-aided
design
efficient
synthesis
fabrication
combined
strategy
expected
accelerate
Journal of Cheminformatics,
Год журнала:
2023,
Номер
15(1)
Опубликована: Июль 19, 2023
Abstract
Machine
learning
has
great
potential
in
predicting
chemical
information
with
greater
precision
than
traditional
methods.
Graph
neural
networks
(GNNs)
have
become
increasingly
popular
recent
years,
as
they
can
automatically
learn
the
features
of
molecule
from
graph,
significantly
reducing
time
needed
to
find
and
build
molecular
descriptors.
However,
application
machine
energetic
materials
property
prediction
is
still
initial
stage
due
insufficient
data.
In
this
work,
we
first
curated
a
dataset
12,072
compounds
containing
CHON
elements,
which
are
traditionally
regarded
main
composition
elements
materials,
Cambridge
Structural
Database,
then
implemented
refinement
our
force
field-inspired
network
(FFiNet),
through
adoption
Transformer
encoder,
resulting
(FFiTrNet).
After
improvement,
model
outperforms
other
learning-based
GNNs-based
models
shows
its
powerful
predictive
capabilities
especially
for
high-density
materials.
Our
also
capability
crystal
density
(i.e.
Huang
&
Massa
dataset),
will
be
helpful
practical
high-throughput
screening
The
application
of
machine
learning
in
the
research
and
development
energetic
materials
is
becoming
increasingly
widespread
for
performance
prediction
inverse
design.
Many
advances
have
been
achieved,
especially
discovery
various
new
materials.
However,
main
properties
such
as
data
acquisition,
molecular
characterization,
limitations
objects
insufficient.
Density,
a
critical
factor
influencing
detonation
materials,
difficult
to
predict
with
high
precision
speed
at
large
scale.
In
this
study,
techniques
are
employed
density
CHNO
result
explore
simultaneously
possessing
stability.
By
screening
dataset
16
548
candidate
molecules,
175
potential
high-performance
molecules
were
identified.
Among
candidates,
it
noted
that
molecule
velocity
7.328
Km/s
pressure
24.48
GPa
was
which
comparable
TNT.
study
shows
transformative
accelerating
novel
vital
diverse
applications
optimized
expected
accelerate
next-generation