Inorganics,
Journal Year:
2025,
Volume and Issue:
13(2), P. 35 - 35
Published: Jan. 24, 2025
This
paper
presents
a
methodology
for
the
preparation
of
new
active
component
ion-selective
membranes,
based
on
di-substituted
sulfonium
derivative
closo-decaborate
anion
at
apical
vertices
with
octadecylalkyl
substituents
1,10-B10H8(S(C18H37)2)2.
approach
is
characterized
by
physicochemical
methods
analysis
(11B,
1H,
13C
NMR
spectroscopy,
IR
spectroscopy
and
elemental
analysis).
The
compound
obtained
used
as
an
PVC
membrane
selective
to
terbinafine
hydrochloride.
sensor
developed
highly
drug
be
detected,
has
linearity
range
4.0
×
10−8–1.0
10−2
detection
limit
1.0
10−8,
can
detect
hydrochloride
in
pH
3
6.
Molecules,
Journal Year:
2024,
Volume and Issue:
29(5), P. 1005 - 1005
Published: Feb. 26, 2024
Nitrogen
and
phosphorus
play
essential
roles
in
ecosystems
organisms.
However,
with
the
development
of
industry
agriculture
recent
years,
excessive
N
P
have
flowed
into
water
bodies,
leading
to
eutrophication,
algal
proliferation,
red
tides,
which
are
harmful
aquatic
Biochar
has
a
high
specific
surface
area,
abundant
functional
groups,
porous
structure,
can
effectively
adsorb
nitrogen
water,
thus
reducing
environmental
pollution,
achieving
reusability
elements.
This
article
provides
an
overview
preparation
biochar,
modification
methods
advancements
adsorption
by
factors
influencing
as
well
mechanisms.
Furthermore,
difficulties
encountered
future
research
directions
regarding
biochar
were
proposed,
providing
references
for
application
adsorption.
Frontiers in Marine Science,
Journal Year:
2024,
Volume and Issue:
11
Published: June 3, 2024
Coastal
eutrophication
is
a
major
issue
of
marine
pollution.
The
main
factors
controlling
must
be
identified
to
ensure
effective
environmental
management
according
the
respective
local
conditions.
Zhanjiang
Bay
(ZJB),
located
northwest
South
China
Sea,
semi-closed
bay
influenced
by
complex
water
flows
and
development
surrounding
cities.
In
this
study,
we
investigated
nutrient
concentrations
compositions
in
ZJB
seawater
over
past
20
years
influencing
based
on
several
field
investigations
from
2006
2022
historical
data.
High
dissolved
inorganic
phosphorus
(DIP)
nitrogen
(DIN)
were
contributors
severe
long-term
ZJB;
however,
light
was
observed
outer
bay,
primarily
caused
chemical
oxygen
demand
(COD)
DIP.
primary
sources
COD
nutrients
riverine
freshwater,
sewage
outfalls,
mariculture
domestic
effluents
carried
rivers.
Tidal
effects
diluted
with
thereby
playing
key
role
redistribution.
DIN:
DIP
ratio
showed
restriction
excess
phosphorus,
owing
activities.
Marine
undertakings
can
exert
various
impacts
quality.
Eliminating
illegal
aquaculture
launching
tailwater
treatment
improve
quality,
whereas
practices
such
as
channel
dredging
may
worsen
it.
This
study
demonstrates
intricate
dynamics
ecosystem
offers
valuable
insights
for
conservation
efforts.
Ecological Informatics,
Journal Year:
2024,
Volume and Issue:
82, P. 102729 - 102729
Published: July 27, 2024
Chlorophyll-a
(Chl
a)
is
an
important
indicator
of
algal
biomass
frequently
used
to
evaluate
the
severity
cultural
eutrophication.
Identifying
key
covariates
Chl
a
concentrations
essential
understand
mechanisms
that
drive
eutrophication
and
develop
forecasting
tools
guide
restoration
process.
In
this
study,
we
present
novel
ensemble
modeling
framework
founded
upon
complementary
features
Random
Forest
(RF)
Generalized
Additive
(GAMs).
A
series
RF
models
are
first
developed
forecast
based
on
antecedent
values
multitude
environmental
predictors.
GAMs
then
explore
presence
non-linearities
in
seasonal
relationships
between
identified
The
optimal
using
0–8
day
time
lag
displayed
high
predictive
skills
with
adjusted
R2
consistently
above
0.80.
Analyses
revealed
modulating
factors
display
significant
seasonality.
Dissolved
oxygen
(DO)
turbidity
were
spring,
while
water
level
fluctuations
predominantly
regulated
phytoplankton
summer
winter.
occurrence
blooms
autumn
associated
threshold
levels
0.06
1.50
mg/L
for
total
phosphorus
(TP)
nitrogen
(TN)
concentrations,
respectively.
These
results
reveal
potential
introduced
shed
light
regulatory
as
well
establish
real-time
predictions
Nanji
wetland
waters
Poyang
Lake.
International Journal of Digital Earth,
Journal Year:
2024,
Volume and Issue:
17(1)
Published: Feb. 6, 2024
Multispectral
images
make
it
possible
to
retrieve
water
quality
parameters
over
a
wide
range
and
long
time
series
by
remote
sensing.
The
robustness
of
traditional
supervised
machine
learning
models,
which
have
been
widely
used,
is
affected
in
various
regions,
these
models
are
developed
in-situ
measurements
limited
satellite
images.
This
study
combined
spectral
transfer
strategy
with
semi-supervised
regression
model
conduct
data
augmentation
robust
for
two
inland
lakes
Jilin
Province,
Northeast
China,
based
on
Sentinel-2
Instruments
Specifically,
this
integrated
an
automated
module
Balance
Distribution
Adaptation
features
method,
then
applied
Co-training
Regressors
Chlorophyll-a
retrievals
achieve
the
highest
accuracy,
solved
selection
models.
Automated
was
achieved
best
performance
(R2
0.91,
root
mean
square
error
2.62
μg
L−1
absolute
percentage
22.88%)
compared
other
showed
months.
Our
results
offer
reliable
approach
provide
accurate
estimation
spatial–temporal
variations.
