Influence of Polymers Surface Roughness on Noise Emissions in 3D-Printed UAV Propellers
Polymers,
Год журнала:
2025,
Номер
17(8), С. 1015 - 1015
Опубликована: Апрель 9, 2025
Following
the
rising
popularity
of
Unmanned
Aerial
Vehicles
(UAVs)
among
large-scale
users,
in
form
domestic
as
well
professional
drones,
with
applications
domains
such
safety
(e.g.,
surveillance
drones),
terrain
mapping
(using
geo-scanning
UAVs),
videography
and
high
performance
drones
used
FPV
(First
Person
View)
drone
competitions—as
wide
accessibility
Fused
Filament
Fabrication
(FFF)—especially
considering
recent
apparition
popularization
3D
printers
capable
displaying
exponential
increases
metrics,
present
work
takes
into
consideration
practice
fabricating
UAV
propellers
by
means
FFF,
focusing
on
theoretical,
practical
aspects
roughness
quality
observed
at
level
resulting
surfaces.
The
paper
proposes
a
set
propeller
configurations
obtained
combining
popular
geometries,
Gemfan
51466-3
three-bladed
novel
Toroidal
model,
range
different
fabrication
materials,
Polyethylene
Terephthalate
Glycol
(PETG)
filament
Polylactic
Acid
(PLA)
filament.
main
aim
study
is
to
reveal
observations
influence
that
surface
has
metrics
propeller.
Based
work,
which
aims
develop
comparative
between
two
geometries
manufactured
nonconventional
process,
printing,
were
carried
out
using
low-cost
equipment
order
evaluate
results
setting.
involves
identification
noise
values
produced
due
Язык: Английский
Wildlife monitoring with drones: A survey of end users
Wildlife Society Bulletin,
Год журнала:
2024,
Номер
48(3)
Опубликована: Июнь 24, 2024
Abstract
Rapid
advancements
in
technology
often
yield
research
inquiry
into
novel
applications
and
drone
(i.e.,
unoccupied
aircraft
systems
or
UAS)
wildlife
management
are
no
exception.
We
questioned
the
time
lag
between
drone‐related
end‐user
assessments.
implemented
an
online,
cross‐sectional
survey
of
professionals
to
better
understand
current
use
benefits
concerns,
complemented
by
a
review
contemporary
peer‐reviewed
gray
literature.
found
little
disparity
scientific
experiences
similar
trends
among
concerns
published
literature
results).
Exploring
new
computer
vision)
refining
original
evaluating
animal
behavior
responses
during
monitoring)
were
strong
pilots
relatively
minimal
experience
(1–5
years).
Advancements
changes
legislation
will
continue
offer
challenges.
Язык: Английский
Monitoring active osprey nests with drones is more time efficient and less disturbing than conventional methods
Wildlife Biology,
Год журнала:
2024,
Номер
unknown
Опубликована: Дек. 18, 2024
Drones
are
used
to
monitor
bird
nesting
sites
at
less
accessible
locations,
such
as
on
cliffs,
human
infrastructure,
or
within
the
tree
canopy.
While
there
a
growing
number
of
studies
documenting
avian
behavioral
responses
various
drones,
is
continued
need
taxa‐specific
different
drone
models.
We
explored
both
time
efficiency
and
impact
nest
survey
methods
(drones,
climbing,
observations
from
bucket
truck)
model
sizes
(small,
medium,
large)
defense
behavior
breeding
ospreys.
conducted
166
surveys
(126
drone,
25
15
85
active
nests
across
three
stages.
found
variation
in
four
six
pre‐defined
categories,
namely
for
calling,
flying,
nest,
perching
behaviors
with
method,
sex,
stage.
Females
were
more
responsive
all
compared
males
engaged
nest‐protection
most
frequently
during
incubation.
Ospreys
spent
greater
their
other
methods.
Agitated
calling
flying
also
frequent
surveys.
recorded
defensive
types
no
strikes
drones
researchers.
Drone
size
appeared
influence
behavior,
female
ospreys
spending,
average,
18%
when
surveyed
medium‐sized
smaller
(8%)
larger
(6%)
Surveys
took
complete
tested.
Based
our
findings,
appear
be
best
choice
monitoring
osprey
they
adaptable,
efficient,
result
apparent
disturbance
than
Our
research
aids
setting
practices,
optimizing
size,
developing
evidence‐driven
approaches
variety
landscapes
contexts.
Язык: Английский