Micromachines,
Journal Year:
2024,
Volume and Issue:
15(9), P. 1072 - 1072
Published: Aug. 25, 2024
The
triboelectric
nanogenerator
(TENG)
has
the
potential
to
serve
as
a
high-entropy
energy
harvester,
enabling
self-powered
operation
of
Internet
Things
(IoT)
devices.
True
random
number
generator
(TRNG)
is
common
feature
encryption
used
in
IoT
data
communication,
ensuring
security
transmitted
information.
benefits
multiplexing
TENG
and
TRNG
resource-constrained
devices
are
substantial.
However,
current
designs
limited
by
usage
scenarios
throughput
TRNG.
Specifically,
we
propose
structurally
environmentally
friendly
design
based
on
contact-separation
structure,
integrating
heat
fluctuation
charge
decay
entropy
sources.
Furthermore,
filtering
differential
algorithms
recommended
for
processing
characteristics
enhance
randomness.
Finally,
TENG-based
fabricated,
its
performance
verified.
Test
results
demonstrate
25
Mbps
with
randomness
test
pass
rate
approaching
99%,
demonstrating
suitability
applications.
Small,
Journal Year:
2025,
Volume and Issue:
unknown
Published: April 10, 2025
Abstract
With
the
rapid
development
of
Internet
Things
(IoT)
technology,
sensors
have
become
most
important
nodes
for
information
exchange
in
IoT.
However,
ensuring
stable
power
supply
and
network
communication
a
plethora
distributed
sensing
has
key
technical
bottleneck
that
restricts
marine
Herein,
self‐adaptive
gyroscope‐structured
hybrid
triboelectric‐electromagnetic
nanogenerator
(SAG‐HTENG)
is
designed
omnidirectional
wave
energy
harvesting.
Through
seamlessly
integrating
an
electromagnetic
generator
(EMG)
triboelectric
(TENG)
modules
into
one
device,
conversion
efficiency
can
be
significantly
enhanced.
Furthermore,
through
incorporating
ferromagnetic
electrode,
remarkable
peak
density
29.92
W
m
−3
Hz
−1
TENG
module
402.08
EMG
achieved,
respectively.
Meanwhile,
exhibited
superior
working
stability
applicability
harvesting
low‐frequency
water
tank
field
test
compared
to
module.
Leveraging
IoT
platform,
self‐powered
real‐time
ocean
currents
monitoring
buoy
system
(OCMBS)
constructed
determining
direction
current
type.
This
work
offers
novel
solution
toward
future
smart
EcoMat,
Journal Year:
2025,
Volume and Issue:
7(3)
Published: Feb. 19, 2025
ABSTRACT
The
growing
utilization
of
the
Ocean
Internet
Things
(Ocean
IoT)
has
a
significant
impact
on
human
society.
Recent
advances
in
nanotechnology
terms
developing
unprecedented
structural,
mechanical,
electrical,
chemical,
and
photonic
properties
have
led
to
devices
that
are
expected
promote
sustainable
growth
emerging
IoT.
This
review
provides
system‐level
analysis
nanotechnology‐enabled
sensors,
actuators,
energy
harvesting,
antifouling
coatings,
environmental
remediation
been
developed,
with
focus
their
materials,
structures,
manufacturing
technologies,
as
well
merits
drawbacks.
challenges
associated
ecotoxicity
nanotechnology‐derived
pollutants
marine
ecosystems
also
discussed.
Finally,
potential
future
research
directions
presented
for
this
field.
Remote Sensing,
Journal Year:
2025,
Volume and Issue:
17(8), P. 1449 - 1449
Published: April 18, 2025
Aiming
at
the
problem
of
nonlinear
observation
model
mismatch
and
insufficient
anti-interference
ability
SINS/GNSS
integrated
navigation
system
in
complex
dynamic
environment,
this
paper
proposes
an
adaptive
robust
filtering
algorithm
with
improved
fading
factor.
that
traditional
Kalman
filter
is
easy
to
diverge
severe
heave
motion
abnormal
observation,
a
multi-source
information
fusion
framework
integrating
satellite
positioning
geometric
accuracy
factor
(PDOP),
solution
quality
(Q
value),
effective
number
(Satnum),
residual
vector
constructed.
The
weight
adjustment
mechanism
designed
realize
real-time
optimization
Through
collaborative
estimation
theory
filtering,
dual
constructed
by
combining
sequential
update
strategy.
In
measurement
stage,
dynamically
adjusted
according
innovation
covariance,
memory
introduced
time
stage
suppress
error
accumulation
model.
experimental
results
show
compared
EKF,
Sage-Husa
algorithms,
three-dimensional
47.12%,
35.26%,
9.58%,
respectively,
vehicle
strong
maneuvering
scene.
scene
ship-borne
motion,
corresponding
increase
19.44%,
10.47%,
8.28%.
research
provide
for
systems
high
environments.
ACS Sensors,
Journal Year:
2024,
Volume and Issue:
9(11), P. 6174 - 6184
Published: Oct. 29, 2024
Recently,
rigid
sensors
have
been
commonly
applied
to
online
monitoring
of
the
core
curing
processes
composite
materials
prevent
both
overcuring
and
under-curing.
However,
conventional
are
prone
causing
cracks
bubbles
in
during
process,
thereby
affecting
mechanical
performance
overall
reliability
materials.
Herein,
stretchable
interdigital
dielectric
with
flexible
substrates
electrodes
designed
conform
complex
3D
surfaces,
thus
enabling
embedded
nondestructive
processes.
The
obtained
can
endure
1000
cycles
bending
from
0°
180°
stretching
at
30%
strain
while
still
conforming
perfectly
overcoming
inability
traditional
bend.
Additionally,
sensor
integration
an
electronic
circuit
enables
real-time
data
collection
transmission,
which
makes
device
more
portable,
compact,
lightweight.
Moreover,
after
atmospheric
exposure
for
5
months,
unit
sensitivity
decreased
by
only
0.1%,
demonstrating
its
excellent
stability.
Furthermore,
three-dimensional
surfaces
Fendouzhe
deep-sea
submersible,
unit's
is
close
that
planar
equipment,
decreasing
0.4%.
proposed
technology
demonstrates
high
sensitivity,
accuracy,
surface
monitoring,
long-term
under
nonplanar
conditions.
