Zbornik radova Departmana za geografiju turizam i hotelijerstvo,
Год журнала:
2024,
Номер
53-2, С. 80 - 97
Опубликована: Янв. 1, 2024
Climate
change,
air
pollution
and
noise,
among
other
environmental
problems,
are
increasingly
affecting
human
society
the
natural
environment.
Among
main
sources
of
greenhouse
gases
pollutant
emissions
in
atmosphere
is
transport
sector.
To
decrease
use
fossil
fuels
transportation
sector,
hydrogen
fuel
cell
electric
vehicles
(HFCEVs)
have
been
proposed
as
a
potential
alternative,
others.
Although
not
completely
green,
from
life-cycle
perspective,
HFCEVs
can
lower
climate
impact
than
conventional
vehicles,
depending
on
how
produced.
Widespread
renewable
energy
significantly
reduce
this
impact.
The
research
results
show
an
increase
HFCEV
sales
recently
(but
far
below
level
battery
vehicles),
concerns
about
introduction
all
sectors
(road,
rail,
sea
or
air),
still
limited
distribution
infrastructure
refuelling,
high
production
costs.
could
contribute
to
decarbonization
efforts,
including
development,
should
be
stepped
up
support
them
identify
best
solutions
current
challenges.
Technologies,
Год журнала:
2024,
Номер
12(12), С. 266 - 266
Опубликована: Дек. 18, 2024
This
paper
presents
the
results
of
numerical
simulations
examining
thermodynamic
processes
during
hydraulic
hydrogen
compression,
using
COMSOL
Multiphysics®
6.0.
These
focus
on
application
compression
systems,
particularly
in
refueling
stations.
The
computational
models
employ
CFD
and
heat
transfer
modules,
along
with
deforming
mesh
technology,
to
simulate
gas
dynamics.
superposition
method
was
applied
simplify
analysis
liquid
piston
interactions
within
a
stainless-steel
chamber,
accounting
for
exchange
between
hydrogen,
oil
(working
fluid),
cylinder
walls.
study
investigates
effects
varying
stroke
durations
initial
pressures,
providing
detailed
insights
into
temperature
distributions
energy
consumption
under
different
conditions.
reveal
that
upper
region
chamber
experiences
significant
heating,
highlighting
need
efficient
cooling
systems.
Additionally,
show
longer
strokes
reduce
power
requirement
pump,
offering
potential
optimizing
system
design
reducing
equipment
costs.
offers
crucial
data
enhancing
efficiency
paving
way
improved
thermal
management
high-pressure
applications.
Applied Sciences,
Год журнала:
2024,
Номер
15(1), С. 296 - 296
Опубликована: Дек. 31, 2024
The
incorporation
of
machine
learning
(ML)
into
healthcare
information
systems
(IS)
has
transformed
multi-objective
management
by
improving
patient
monitoring,
diagnostic
accuracy,
and
treatment
optimization.
Notwithstanding
its
revolutionizing
capacity,
the
area
lacks
a
systematic
understanding
how
these
models
are
divided
analyzed,
leaving
gaps
in
normalization
benchmarking.
present
research
usually
overlooks
holistic
for
comparing
ML-enabled
ISs,
significantly
considering
pivotal
function
criteria
like
precision,
sensitivity,
specificity.
To
address
gaps,
we
conducted
broad
exploration
306
state-of-the-art
papers
to
novel
taxonomy
IS
management.
We
categorized
studies
six
key
areas,
namely
systems,
treatment-planning
monitoring
resource
allocation
preventive
hybrid
systems.
Each
category
was
analyzed
depending
on
significant
variables,
uncovering
that
adaptability
is
most
effective
parameter
throughout
all
models.
In
addition,
majority
were
published
2022
2023,
with
MDPI
as
leading
publisher
Python
prevalent
programming
language.
This
extensive
synthesis
not
only
bridges
but
also
proposes
actionable
insights
ML-powered
International Journal of Chemical Engineering,
Год журнала:
2024,
Номер
2024(1)
Опубликована: Янв. 1, 2024
The
hydrogen
consumption
and
driving
range
of
fuel
cell
vehicles
are
key
indicators
for
evaluating
their
performance.
existing
testing
standards
mainly
suffer
from
issues
such
as
cumbersome
procedures,
low
efficiency,
incomplete
calculation
methods.
This
article
proposes
a
rapid
evaluation
method
B‐class
vehicles.
does
not
require
the
test
vehicle
to
be
fully
charged
with
before
experiment
but
only
requires
meet
2
cycles
pure
electric
7
hybrid
driving.
Different
methods
were
used
conduct
comparative
experiments
on
6
experimental
results
show
that
after
simplifying
process,
excluding
time
cost
preparation
work
experiment,
is
one‐third
running
during
net
significantly
reduced.
In
addition,
has
2.25%
5.31%
in
per
100
km
compared
standard
method,
an
average
increase
3.89%.
variation
7.26%
9.51%,
8.65%.
Zbornik radova Departmana za geografiju turizam i hotelijerstvo,
Год журнала:
2024,
Номер
53-2, С. 80 - 97
Опубликована: Янв. 1, 2024
Climate
change,
air
pollution
and
noise,
among
other
environmental
problems,
are
increasingly
affecting
human
society
the
natural
environment.
Among
main
sources
of
greenhouse
gases
pollutant
emissions
in
atmosphere
is
transport
sector.
To
decrease
use
fossil
fuels
transportation
sector,
hydrogen
fuel
cell
electric
vehicles
(HFCEVs)
have
been
proposed
as
a
potential
alternative,
others.
Although
not
completely
green,
from
life-cycle
perspective,
HFCEVs
can
lower
climate
impact
than
conventional
vehicles,
depending
on
how
produced.
Widespread
renewable
energy
significantly
reduce
this
impact.
The
research
results
show
an
increase
HFCEV
sales
recently
(but
far
below
level
battery
vehicles),
concerns
about
introduction
all
sectors
(road,
rail,
sea
or
air),
still
limited
distribution
infrastructure
refuelling,
high
production
costs.
could
contribute
to
decarbonization
efforts,
including
development,
should
be
stepped
up
support
them
identify
best
solutions
current
challenges.
