Results 121 to 130 of about 25,590 (247)

Effects of tree diversity and mycorrhizal type on the spatio‐temporal variability of leaf litter production and quality in temperate forests

open access: yesJournal of Ecology, Volume 114, Issue 4, April 2026.
This study tested whether combining high tree species richness with mixed mycorrhizal types (arbuscular mycorrhizal [AM] and ectomycorrhizal [EM] fungi) enhances productivity in forest ecosystems. Results did not support this: neither litter production nor nutrient traits benefited from mycorrhizal mixing.
Elisabeth Bönisch   +15 more
wiley   +1 more source

Multivariate Spectra Analysis: PLSR vs. PCA + MLR [PDF]

open access: yes7th International Electronic Conference on Sensors and Applications, 2020
Sander Vervoort, Marcus Wolff
openaire   +1 more source

Assessment of Visible and Near-Infrared Spectroscopy in Estimation of Lead and Nickel Heavy Metals content in Soil (Case study: Rey Lands)

open access: yesعلوم آب و خاک, 2018
Reflectance spectroscopy is a fast and safe method to predict soil physicochemical and biological properties in low cost ways. Traditional methods to determine soil properties require spending a lot of time and money so that farmers are generally ...
R. Samiei Fard, H. Matinfar
doaj  

An Alternate Method for Fourier Transform Infrared (FTIR) Spectroscopic Determination of Soil Nitrate Using Derivative Analysis and Sample Treatments [PDF]

open access: yes
This study aimed at examining effective sample treatments and spectral processing for an alternate method of soil nitrate determination using the attenuated total reflectance (ATR) of Fourier transform infrared (FTIR) spectroscopy.
Choe, E.   +4 more
core   +2 more sources

NIR Spectroscopy as an Alternative to Thermogravimetric Analyzer for Biomass Proximate Analysis: Comparison of Chip and Ground Biomass Models

open access: yesEnergies
This study investigates the non-destructive analysis of proximate parameters (moisture content, MC; volatile matter, VM; fixed carbon, FC; ash content) in various chipped and ground biomass using a combination of destructive thermogravimetric analysis ...
Bijendra Shrestha   +5 more
doaj   +1 more source

A novel intelligent model integrating PLSR with RBF-Kernel based Extreme Learning Machine: Application to modelling petrochemical process

open access: yesIFAC-PapersOnLine, 2019
With the petrochemical process data getting complicated, building accurate and robust process analysis models has becoming a hot research. In this study, a novel intelligent model integrating PLSR with RBF-Kernel based Extreme Learning Machine (PLSR ...
Qunxiong Zhu   +4 more
semanticscholar   +1 more source

On the derivation of the GKLS equation for weakly coupled systems

open access: yes, 2017
We consider the reduced dynamics of a small quantum system in interaction with a reservoir when the initial state is factorized. We present a rigorous derivation of a GKLS master equation in the weak-coupling limit for a generic bath, which is not ...
Facchi, Paolo   +2 more
core   +1 more source

A Novel Hybrid Approach to Deal with DVL Malfunctions for Underwater Integrated Navigation Systems

open access: yesApplied Sciences, 2017
As a common device for underwater integrated navigation systems, Doppler velocity log (DVL) has the risk of malfunction. To improve the reliability of navigation systems, a hybrid approach is presented to forecast the measurements of the DVL while it ...
Yixian Zhu   +4 more
doaj   +1 more source

Semi-supervised network inference using simulated gene expression dynamics

open access: yes, 2017
Motivation: Inferring the structure of gene regulatory networks from high--throughput datasets remains an important and unsolved problem. Current methods are hampered by problems such as noise, low sample size, and incomplete characterizations of ...
Braun, Rosemary, Nguyen, Phan
core   +1 more source

Rapid Detection of Pesticide Residues in Chinese Herbal Medicines by Fourier Transform Infrared Spectroscopy Coupled with Partial Least Squares Regression

open access: yesJournal of Spectroscopy, 2016
This paper reports a simple, rapid, and effective method for simultaneous detection of cartap (Ca), thiocyclam (Th), and tebufenozide (Te) in Chinese herbal medicines including Radix Angelicae Dahuricae and Liquorices using Fourier transform infrared ...
Tianming Yang   +6 more
doaj   +1 more source

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