Metals,
Journal Year:
2023,
Volume and Issue:
13(12), P. 1939 - 1939
Published: Nov. 27, 2023
The
in
situ
small
punch
(SP)
test
method
is
a
simple
screening
technology
developed
to
assess
the
hydrogen
embrittlement
(HE)
characteristics
of
structural
steels.
This
can
easily
adjust
influencing
parameters
such
as
temperature,
gas
pressure,
and
velocity
depending
on
service
environment.
With
increased
consumption,
using
pipelines
for
mass
transportation
being
considered.
study
evaluated
HE
susceptibility
API-X52
API-X70
steels,
considering
usage
investigated
effects
pressure
behaviors
each
pipe
steel
at
room
temperature
SP
energy
relative
reduction
thickness
(RRT)
determine
their
effect
quantitatively.
found
that
produced
different
effect;
lower
more
was
relieved.
Particularly,
when
high,
1
mm/min,
significantly
relaxed.
However,
below
0.01
occurred
even
low
conditions,
meaning
diffusion
within
specimen
during
testing
reached
critical
concentration
create
brittle
fracture.
Both
pipeline
steels
showed
similar
under
wide
range
H2
pressures
velocities,
showing
an
inverse
S-curve
quantitative
factors
RRT
against
1.0
mm/min
velocity.
classified
observed
into
four
types
based
qualitative
aspects.
These
findings
confirm
useful
technique,
factor
be
effectively
applied
high-pressure
environments.
E3S Web of Conferences,
Journal Year:
2024,
Volume and Issue:
559, P. 03011 - 03011
Published: Jan. 1, 2024
The
adoption
of
green
hydrogen
in
India’s
transportation
sector
represents
a
promising
solution
to
the
country’s
energy
challenges.
However,
various
barriers
hinder
its
large-scale
implementation.
This
paper
employs
fuzzy
Interpretive
Structural
Modeling
(ISM)
approach
identify
and
analyze
affecting
adoption.
Self-Interaction
Matrix
(SSIM)
Initial
Fuzzy
Reachability
(IFRM)
were
used
assess
direct
relationships
between
barriers,
while
level
partitioning
final
reachability
matrix
provided
hierarchical
structure.
digraph
visually
mapped
relationships,
cluster
diagram
identified
clusters
based
on
driving
power
dependence.
Key
such
as
“Technological
Immaturity,”
“Inadequate
Regulatory
Frameworks,”
“Policy
Inconsistencies,”
foundational
Resolving
these
will
yield
substantial
positive
effects
across
network,
streamlining
progress
adopting
sector.
analysis
offers
strategic
pathway
for
policymakers
stakeholders
prioritize
interventions
this
clean
technology.
Transportation Research Interdisciplinary Perspectives,
Journal Year:
2024,
Volume and Issue:
25, P. 101107 - 101107
Published: May 1, 2024
With
the
rise
of
alternative
sustainable
powertrain
technologies,
mobility
paradigm
has
undergone
fundamental
changes
in
recent
years.
In
wake
ongoing
transition
road-vehicle
sector,
fuel-cell
vehicles
(FCVs)
have
received
increased
political
attention.
However,
they
constitute
only
a
tiny
fraction
total
road
nowadays
and
still
face
competition
from
other
technologies.
Therefore,
this
study
specifically
focuses
on
how
focal
technological
innovation
system
FCVs
is
influenced
by
emerging
electric
(EVs)
established
internal
combustion
engine
(ICEVs)
as
its
context
structures.
To
end,
our
time-series
vector
error
correction
models
analyze
short-
long-run
causalities
between
TIS
Using
publications,
patents,
standards
quantitative
indicators,
we
modes
technology
interaction
EVs
ICEVs
to
determine
life-cycle
phase
FCV-TIS
more
depth.
Our
results
demonstrate
that
formative
based
dominance
EV
ICEV
As
policy
implications,
derive
application-sensitive
policies
combine
benefits
each
toward
sector.
