Large-scale digital mapping of topsoil total nitrogen using machine learning models and associated uncertainty map
Sign Up to like & getrecommendations! Published in 2021 at "Environmental Monitoring and Assessment"
DOI: 10.1007/s10661-021-08947-w
Abstract: Understanding the spatial distribution of soil nutrients and factors affecting their concentration and availability is crucial for soil fertility management and sustainable land utilization while quantifying factors affecting soil nitrogen distribution in Qorveh-Dehgolan plain is… read more here.
Keywords: nitrogen; digital mapping; soil; topsoil total ... See more keywords
Assessment of water quality and phytoplankton community of Limpenaeus vannamei pond in intertidal zone of Hangzhou Bay, China
Sign Up to like & getrecommendations! Published in 2018 at "Aquaculture Reports"
DOI: 10.1016/j.aqrep.2018.06.002
Abstract: Abstract This study was conducted to understand the associations between water quality and the phytoplankton community in intertidal mudflat pond of Limpenaeus vannamei, in the region around Hangzhou Bay. The water parameters at each sampling… read more here.
Keywords: water; phytoplankton community; quality phytoplankton; water quality ... See more keywords
Spatial heterogeneity and affecting factors of litter organic carbon and total nitrogen over natural spruce-fir mixed forests in northeastern China
Sign Up to like & getrecommendations! Published in 2019 at "CATENA"
DOI: 10.1016/j.catena.2018.11.020
Abstract: Abstract Litter, as the basic carrier of nutrients, is a link between plants and soil in nutrient cycling and plays a major role in maintaining soil fertility and promoting material cycling and nutrient balance in… read more here.
Keywords: spatial heterogeneity; total nitrogen; carbon total; spruce fir ... See more keywords
Total nitrogen removal, products and molecular characteristics of 14 N-containing compounds in supercritical water oxidation.
Sign Up to like & getrecommendations! Published in 2017 at "Chemosphere"
DOI: 10.1016/j.chemosphere.2017.08.069
Abstract: Supercritical water oxidation (SCWO) process of 14 N-containing compounds was investigated with residence time of 150 s, at a stable pressure of 24 MPa, temperatures of 350-500 °C and 500% excess oxygen, resulted in total nitrogen (TN) removal from… read more here.
Keywords: containing compounds; nitrogen removal; removal; water oxidation ... See more keywords
Operation adjustments of an electrochemically coupled system for total nitrogen removal and the associated mechanism.
Sign Up to like & getrecommendations! Published in 2019 at "Chemosphere"
DOI: 10.1016/j.chemosphere.2019.125649
Abstract: A coupled system consisting of sequencing batch reactor and microbial fuel cell (SBR-MFC) was designed to buffer pH drift and purify wastewater. The addition of nitrifying sludge and the adjustment of hydraulic retention time (HRT)… read more here.
Keywords: removal; coupled system; denitrification; total nitrogen ... See more keywords
Real-time measurement of total nitrogen for agricultural runoff based on multiparameter sensors and intelligent algorithms.
Sign Up to like & getrecommendations! Published in 2021 at "Water research"
DOI: 10.1016/j.watres.2021.117992
Abstract: Real-time monitoring of non-point source (NPS) pollution is challenging owing to the minute-scale change in runoff flow and concentration under rainfall condition. In this study, we proposed a real-time measurement method for total nitrogen (TN)… read more here.
Keywords: time; real time; method; time measurement ... See more keywords
The estimation of protein equivalents of total nitrogen in Chinese CAPD patients: an explanatory study
Sign Up to like & getrecommendations! Published in 2022 at "Renal Failure"
DOI: 10.1080/0886022x.2021.2014886
Abstract: Abstract Objective The protein equivalent of total nitrogen appearance (PNA) formula, based on the urea nitrogen appearance (UNA), is popularly used by stable continuous ambulatory peritoneal dialysis (CAPD) patients to estimate dietary daily protein intake… read more here.
Keywords: capd patients; capd; nitrogen appearance; total nitrogen ... See more keywords
A Novel Semisupervised Regression Method for Online Total Nitrogen Detection Using Double Structural Sparse Feature Extraction
Sign Up to like & getrecommendations! Published in 2022 at "IEEE Transactions on Instrumentation and Measurement"
DOI: 10.1109/tim.2022.3187709
Abstract: To solve the problem of insufficient labeled samples in online total nitrogen (TN) detection, a novel semisupervised learning (SSL) method called double regularized structure graph learning (DRSGL) was proposed, which can effectively extract useful features… read more here.
Keywords: total nitrogen; graph; detection; method ... See more keywords
Soil total nitrogen estimation of alpine grassland using visible/near-infrared spectra: a comparison of multivariate techniques with different spectral transformations
Sign Up to like & getrecommendations! Published in 2020 at "Journal of Applied Remote Sensing"
DOI: 10.1117/1.jrs.14.015501
Abstract: Abstract. Rapid, precise, and quantitative assessment of soil total nitrogen (TN) of alpine grassland is crucial for monitoring the environmental conditions of grasslands. The right choice of preprocessing and calibration methods may improve the model… read more here.
Keywords: alpine grassland; soil; soil total; total nitrogen ... See more keywords
Estimation of Total Nitrogen Content in Forage Maize (Zea mays L.) Using Spectral Indices: Analysis by Random Forest
Sign Up to like & getrecommendations! Published in 2020 at "Agriculture"
DOI: 10.3390/agriculture10100451
Abstract: Knowing the total Nitrogen content (Nt) of forage maize ( Zea mays ) is important so that decisions can be made quickly and efficiently to adjust the timing and amount of both irrigation and fertilizer.… read more here.
Keywords: maize zea; nitrogen content; forage; total nitrogen ... See more keywords
Nitrogen and Phosphorus Accumulation in Horizontal Subsurface Flow Constructed Wetland
Sign Up to like & getrecommendations! Published in 2021 at "Agronomy"
DOI: 10.3390/agronomy11071317
Abstract: The article presents the results of studies aimed at determining the level of accumulation of total nitrogen and total phosphorus in parts of reeds (Phragmites australis (Cav.) Trin. ex Steud.), as well as in a… read more here.
Keywords: nitrogen; accumulation; constructed wetland; total phosphorus ... See more keywords