Energies,
Год журнала:
2023,
Номер
16(6), С. 2695 - 2695
Опубликована: Март 14, 2023
Physical
activity
involves
movements,
which
can
be
considered
sources
of
kinetic
energy,
that
are
expected
to
important
during
sports
activities.
Several
transducers
transform
this
energy
into
electrical
energy.
Piezoelectric
generators
widely
used,
and
several
applications
highlight
their
relevance.
However,
the
generated
output
power
is
location
dependent,
analysis
placement
kind
generator
challenging.
In
order
assess
availability
sources,
an
acceleration
data
method
presented.
Temporal
harvester
model-based
studies,
using
from
17
inertial
measurement
units
(IMUs)
located
across
whole
human
body,
were
conducted.
The
results
show
piezoelectric
cantilever-beam
harvesters
very
sensitive
impacts.
Extremity
segments,
such
as
feet
or
hands,
good
sources.
most
relevant
features
proposed
criteria
easily
evaluate
harvestable
Materials Today Advances,
Год журнала:
2022,
Номер
17, С. 100333 - 100333
Опубликована: Дек. 10, 2022
Electrically
conductive
polymer
composites
have
sparked
considerable
interest
in
the
research
community
due
to
their
unique
advantages
that
come
from
combining
regular
polymers
with
electronic
properties
of
metals
or
semiconductors
a
synergistic
manner.
Additive
manufacturing
(AM)
offers
promising
prospects
realm
by
allowing
for
greater
design
flexibility,
more
complicated
shapes,
and
rapid
manufacturing.
In
addition,
rising
number
additive
methods,
including
material
extrusion,
vat
photopolymerization,
binder
jetting,
powder
bed
fusion,
sheet
lamination
are
now
available
3D
printing
composites.
this
article,
we
present
an
insight
into
current
advances
field
developed
manufacturing,
which
accelerate
development
printable
electrical
devices.
We
examine
various
AM
processes
terms
respective
limitations,
address
requirements
significant
breakthroughs
composites,
discuss
applications
–
such
as
flexible
electronics,
energy
storage
conversion
devices,
etc.
This
overview
concludes
assessment
potential
future
directions
themes
developing
area.
Waves in Random and Complex Media,
Год журнала:
2023,
Номер
unknown, С. 1 - 30
Опубликована: Янв. 10, 2023
Recently,
nano-
and
micro
air
vehicles
have
been
intensely
attractive
among
researchers
due
to
their
small
size
ultralightweight.
Hence,
in
this
article,
wave
propagation
of
vehicle
wings
is
studied
based
on
mathematical
modeling
as
the
main
novelty
article.
In
addition,
assuming
porous
functionally
graded
materials
(FGM)
magnetostrictive
nanocomposite
layers
for
wing
improving
stiffness
control
another
important
innovation
study.
The
effects
are
considered
strain
gradient
theory
Halpin-Tsai
model
employed
calculating
effective
material
characteristic
layer.
For
structure
mathematically,
refined
zigzag
(RZT)
used.
According
Hamilton's
principle,
governing
equations
gained
solved
by
exact
solutions
obtaining
phase
velocity,
cut-off,
escape
frequencies.
novel
work,
influences
dispersion
kinds
GPLs,
various
core
face
sheets
thickness,
damping
structure,
porosity
constant,
FG
index,
auxetic
honeycombs
characteristics,
parameters,
magnetic
field
investigated
wings.
It
found
that
imposing
layer,
velocity
enhanced.
Energy & environment materials,
Год журнала:
2024,
Номер
7(5)
Опубликована: Янв. 22, 2024
In
engineering
practice,
the
output
performance
of
contact
separation
TENGs
(CS‐TENGs)
increases
with
increase
tribo‐pair
area,
which
includes
increasing
size
single
layer
CS‐TENGs
(SCS‐TENGs)
or
number
units
(zigzag
TENGs).
However,
such
two
strategies
show
significant
differences
in
power
and
density.
this
study,
to
seek
a
universal
CS‐TENG
design
solution,
SCS‐TENG
zigzag
TENG
(Z‐TENG)
is
systematically
compared,
including
voltage,
current,
transferred
charge,
instantaneous
density,
charging
The
relationship
between
area
voltages
explored,
voltage
equation
fitted.
experimental
results
reveal
that
SCS‐TENGs
yield
better
than
Z‐TENGs
terms
power,
density
under
same
total
area.
energy
loss
during
transfer
mechanical
energy,
aggravated
by
units.
peak
up
22
times
Z‐TENG
(45
cm
2
).
Furthermore,
capacitor
131%
Z‐TENGs,
are
relatively
close.
feasible
alternative
when
working
space
limited.
Journal of Intelligent & Fuzzy Systems,
Год журнала:
2023,
Номер
45(4), С. 6303 - 6321
Опубликована: Авг. 1, 2023
The
fuel
cell-dependent
electric
vehicle
systems
are
giving
an
important
role
in
the
present
automotive
because
their
features
less
air
pollution,
high
flexibility,
reduced
oil
dependency,
and
more
reliability.
However,
stack
delivers
nonlinear
output
V-I
characteristics.
So,
extraction
of
peak
power
from
source
is
very
difficult.
In
this
work,
a
Variable
Step
Size
Radial
Basis
Functional
Network-based
Adaptive
Fuzzy
Logic
Controller
(VSSDE-AFLC)
proposed
for
tracking
point
cell
system.
merits
Maximum
Power
Point
Tracking
(MPPT)
controller
tracing
speed
functioning
cell,
abundant,
acceptable
oscillations
across
MPP,
dependency
on
modeling
stack.
Also,
single
switch
converter
utilized
increasing
voltage
supply
cell.
wide
input
operation,
stress,
conversion
ratio,
good
dynamic
response.
boost
implemented
by
utilizing
MATLAB/Simulink
software,
tested
successfully
using
desired
programmable
DC
supply.
