Land,
Journal Year:
2024,
Volume and Issue:
13(11), P. 1768 - 1768
Published: Oct. 28, 2024
Informal
green
spaces
(IGSs)
play
an
essential
role
in
enhancing
urban
well-being
by
offering
restorative
environments,
yet
the
impact
of
visitor
behaviors
on
perceived
restorativeness
(PR)
remains
underexplored.
This
study
investigates
how
different
spatio-temporal
influence
PR
IGS,
providing
planners
with
actionable
insights
to
optimize
these
for
better
user
experiences.
Using
a
visitor-employed
photography
(VEP)
survey
and
post-visit
assessments,
K-means
clustering
was
applied
identify
distinct
behavior
patterns.
Correlation
analysis
further
explored
relationships
between
patterns
PR;
results
reveal
three
unique
clusters
behaviors—fast,
extensive
exploration;
moderate,
focused
slow,
thorough
exploration—each
showing
impacts
PR.
Visitors
who
engage
rapid,
broad
exploration
perceive
larger,
navigable
as
more
restorative,
while
those
focusing
specific
or
in-depth
emphasize
psychological
aspects
like
escape
fascination.
These
behavioral
demonstrate
varying
strengths
their
association
experiences;
underscores
importance
integrating
data
highlighting
physical
features
IGS
findings
offer
critical
designing
managing
accommodate
diverse
needs
promote
well-being.
Buildings,
Journal Year:
2025,
Volume and Issue:
15(2), P. 271 - 271
Published: Jan. 18, 2025
Outdoor
activity
areas
for
embedded
retirement
facilities
(ERFs)
are
essential
providing
older
adults
with
access
to
outdoor
environments
within
communities.
However,
there
is
limited
evidence
on
how
these
influence
adults’
spatial
perceptions.
This
study
investigated
the
impact
of
ERFs’
characteristics
physiological
and
psychological
Three
kinds
in
a
coastal
city
eastern
China
were
investigated,
data
collected
through
real
from
wearable
sensors.
Their
subjective
perception
satisfaction
questionnaires.
By
combining
them,
authors
identified
correlations
between
perceptions
areas,
quantifying
various
features
their
satisfaction.
The
results
showed
that
high
linked
strong
emotional
arousal
increased
visual
comfort.
Spaces
favourable
sky
view
factors
openness
significantly
enhanced
Key
design
elements
can
shape
highlights
positive
relationship
ERFs
experiences,
offering
insights
age-friendly
renovations
site
selection
create
supportive
ageing
populations.
Materials,
Journal Year:
2025,
Volume and Issue:
18(3), P. 682 - 682
Published: Feb. 4, 2025
The
Helmholtz
resonance
acoustic
metamaterial
is
an
effective
sound
absorber
in
the
field
of
noise
reduction,
especially
low-frequency
domain.
To
overcome
conflict
between
number
resonators
and
volume
rear
cavity
for
each
chamber
with
a
given
front
area
single-layer
metamaterial,
novel
interlayer
parallel
connection
multiple
(IPC–MHR)
proposed
this
study.
developed
IPC–MHR
consists
several
layers,
among
different
layers
are
connected
parallel.
absorption
property
studied
by
finite
element
simulation
further
optimized
particle
swarm
optimization
algorithm,
it
validated
standing
wave
tube
measurement
sample
fabricated
additive
manufacturing.
average
coefficient
discrete
frequency
band
[200
Hz,
300
Hz]
U
[400
600
[800
1250
0.7769
four
layers.
Through
thickness
layer,
250–750
Hz
up
to
0.8068.
Similarly,
six
obtains
0.8454
300–950
which
exhibits
excellent
performance
range
wide
band.
can
be
used
suppress
obnoxious
practical
applications.
Ecological Indicators,
Journal Year:
2024,
Volume and Issue:
162, P. 112024 - 112024
Published: April 16, 2024
Urban
thermal
anomalies
profoundly
impact
human
society,
affecting
daily
life,
public
health,
and
residential
comfort.
Prior
studies
linked
to
urban
morphology
evolution
land
use
change
during
urbanization
based
on
multi-indicator
quantification
of
linear
regression
modeling.
However,
it
remained
unclear
which
elements
predominantly
dominate
whether
their
is
solely
linear,
understanding
the
diverse
mechanisms
through
how
influences
various
across
seasons
remains
limited.
Therefore,
this
study
employed
convolutional
neural
networks
interpretable
machine
learning
(Grad-CAM
SHAP)
explore
nonlinear
relationships
between
anomalies,
focusing
comparisons
different
types
anomaly
events
time.
The
main
findings
indicated:
(1)
Grad-CAM's
identification
pivotal
hotspot
pixels
SHAP's
interpretability
assessment
highlighted
that
crucial
factors
contributing
include
area
green
spaces,
water
number
facilities,
building
floor
ratio,
count
industrial
production
facilities.
(2)
Clear
were
observed
dominant
occurrence
confirming
existence
multiple
thresholds
activation
levels,
as
demonstrated
partial
dependency
analysis.
dynamic
complexity
these
associations
significantly
varied
depending
type
event
timing
anomalies.
These
offer
actionable
guidance
for
planners
refine
climate-friendly
strategies,
revealing
heterogeneity
time
multi-scenario
analysis
providing
tailored
insights
climate-sensitive
planning.
Land,
Journal Year:
2025,
Volume and Issue:
14(2), P. 289 - 289
Published: Jan. 30, 2025
Despite
the
widespread
use
of
street
view
imagery
for
Green
View
Index
(GVI)
analyses,
variations
in
sampling
methodologies
across
studies
and
potential
impact
these
differences
on
results,
including
associated
errors,
remain
largely
unexplored.
This
study
aims
to
investigate
effectiveness
various
GVI
calculation
methods,
with
a
focus
analyzing
point
selection
coverage
angles
results.
Through
systematic
review
extensive
relevant
literature,
we
synthesized
six
predominant
methods:
four-quadrant
method,
six-quadrant
eighteen-quadrant
panoramic
fisheye
method
pedestrian
method.
We
further
evaluated
strengths
weaknesses
each
approach,
along
their
applicability
different
research
domains.
In
addition,
address
limitations
existing
methods
specific
contexts,
developed
novel
technique
based
three
120°
images
experimentally
validated
its
feasibility
accuracy.
The
results
demonstrate
method’s
high
reliability,
making
it
valuable
tool
acquiring
images.
Our
findings
that
choice
significantly
influences
calculations,
underscoring
necessity
researchers
select
optimal
approach
context.
To
mitigate
errors
arising
from
initial
angles,
this
introduces
concept,
“Green
Circle”,
which
enhances
precision
calculations
through
meticulous
segmentation
observational
particularly
complex
urban
environments.
Journal of Applied Physics,
Journal Year:
2025,
Volume and Issue:
137(12)
Published: March 24, 2025
The
control
of
noise
pollution
in
the
low-frequency
domain
with
various
spectrum
ranges
requires
development
a
novel
tunable
sound
absorbing
material,
and
multilayer
stackable
grouped
acoustic
metamaterial
(MSG-AM)
is
proposed
this
research
to
obtain
optimal
reduction
effect
while
minimizing
occupied
space.
MSG-AM
includes
four
layers
eight
Helmholtz
resonators
each
layer
divided
into
three
groups,
total
32
different
are
connected
parallel.
absorption
property
optimized
by
joint
simulation
finite
element
particle
swarm
optimization
algorithm,
average
coefficient
(SAC)
reaches
0.8609
for
first
535–650
Hz,
0.7126
second
782–937
0.9285
third
650–782
0.7615
fourth
435–535
respectively.
can
be
combined
flexibly
gain
desired
expected
frequency
range,
sequence
multiple
critical
factor.
SAC
improved
from
0.3696
4
+
1
3
2
0.8726
4,
it
better
put
behind
front
achieve
high-frequency
domain.
mechanism
revealed
intuitively
through
distributions
thermal
power
densities,
which
certify
that
there
exists
resonance
Fabry–Pérot
effects
simultaneously.
conducive
guarantee
effective
variable
noise.
Physics of Fluids,
Journal Year:
2025,
Volume and Issue:
37(4)
Published: April 1, 2025
The
effects
of
sound
on
the
aerodynamics
bluff
bodies
have
been
extensively
studied,
but
their
impact
aeroelastic
behaviors
remain
less
explored.
This
study
investigates
how
frequency
(fs)
and
pressure
level
(SPL)
influence
responses
a
three-dimensional
(3D)
square
cylinder
with
an
aspect
ratio
10.
Wind
tunnel
experiments
are
conducted
under
smooth
flow
conditions,
wind
velocities
ranging
from
1.85
to
16.81
m/s.
applied
fields
cover
frequencies
fs
=
3
50
Hz,
including
model's
natural
(f0
6
Hz),
SPL
levels
between
100
120
dB.
along-wind
across-wind
displacements
model
measured
assess
fluid–structure
interactions,
vortex-induced
vibrations
(VIV),
galloping,
interaction.
results
reveal
that
when
aligns
f0,
vibration
amplitude
increases
by
up
12
times.
In
direction,
suppresses
VIV
at
non-resonant
frequencies,
while
resonance,
it
amplifies
50%,
delays
onset
reduces
galloping
30%.
These
intensify
increasing
SPL.
aims
improve
understanding
wind-induced
3D
cylinders
contributes
wind-resistant
design
strategies
for
slender
structures,
particularly
in
presence
low-frequency
waves.