Bioengineering,
Год журнала:
2024,
Номер
11(10), С. 991 - 991
Опубликована: Сен. 30, 2024
Changes
in
biomechanical
properties
such
as
elasticity
modulus,
viscosity,
and
poroelastic
features
are
linked
to
the
health
status
of
biological
tissues.
Ultrasound
elastography
is
a
non-invasive
imaging
tool
that
quantitatively
maps
these
characteristics
for
diagnostic
treatment
monitoring
purposes.
Mathematical
models
essential
ultrasound
they
convert
raw
data
obtained
from
tissue
displacement
caused
by
waves
into
images
observed
clinicians.
This
article
reviews
available
mathematical
frameworks
continuum
mechanics
extracting
tissues
elastography.
Continuum-mechanics-based
approaches
classical
viscoelasticity,
elasticity,
poroelasticity
models,
well
nonlocal
continuum-based
described.
The
accuracy
can
be
increased
with
recent
advancements
modelling
techniques
including
hyperelasticity,
biphasic
theory,
inversion-based
incorporating
scale
effects.
However,
time
taken
clinical
increases
more
complex
this
major
challenge
expanding
utility
As
we
strive
provide
most
accurate
patients,
further
research
needed
refine
incorporation
workflow.
Nanomaterials,
Год журнала:
2024,
Номер
14(4), С. 350 - 350
Опубликована: Фев. 12, 2024
This
paper
employs
a
surface
stress-driven
nonlocal
theory
to
investigate
the
synergistic
impact
of
long-range
interaction
and
energy
on
higher
vibration
modes
Bernoulli–Euler
nanobeams
made
functionally
graded
material.
It
takes
into
account
effects
such
as
modulus
elasticity,
residual
stresses,
density,
rotary
inertia.
The
governing
equation
is
derived
through
application
Hamilton’s
principle.
novelty
this
work
lies
in
its
pioneering
approach
studying
higher-order
vibrations,
carefully
considering
combination
interactions
materials
well-posed
mathematical
model
elasticity.
study
conducts
parametric
investigation,
examining
parameter
material
gradient
index
for
four
static
schemes:
Cantilever,
Simply-Supported,
Clamped-Pinned
Clamped-Clamped
nanobeams.
outcomes
are
presented
discussed,
highlighting
normalized
natural
frequencies
second
fifth
each
case
under
study.
In
particular,
illustrates
central
role
dynamic
response
nanobeams,
emphasizing
importance
them.
Furthermore,
analysis
reveals
that
influenced
by
combined
parameter,
index,
shapes
cross-sections
considered,
well
scheme
analyzed.
