نتایج جستجو برای: infrared reflectance spectroscopy nirs

تعداد نتایج: 256033  

Journal: :Remote Sensing 2021

Hyperspectral imaging (HSI) is an emerging rapid and non-destructive technology that has promising application within feed mills processing plants in poultry other intensive animal industries. HSI may be advantageous over near infrared spectroscopy (NIRS) as it scans entire samples, which enables compositional gradients sample heterogenicity to visualised analysed. This study was a preliminary ...

Journal: :Seizure 2008
Anne Gallagher Maryse Lassonde Danielle Bastien Phetsamone Vannasing Frédéric Lesage Christophe Grova Alain Bouthillier Lionel Carmant Franco Lepore Renée Béland Dang Khoa Nguyen

Near-infrared spectroscopy (NIRS) is a novel imaging technique of potential value in the pre-surgical investigation of patients with refractory epilepsy. We recorded simultaneously electrophysiology (EEG; Compumedics, USA) and near-infrared spectroscopy (NIRS; ISS, USA) to examine the localization of the ictal onset zone and assess language lateralization in a young epileptic boy (L.H., 10 year...

Journal: :Journal of dairy science 2000
M E Dorshorst P C Hoffman

Previous research from our laboratory has demonstrated that near-infrared reflectance spectroscopy has utility in predicting rumen-undegradable protein (RUP) contents of legume and grass silages. This study was conducted to evaluate whether application of previous research techniques could yield a useful near-infrared reflectance spectroscopy RUP prediction system for legume and grass hays. Leg...

Journal: :Jurnal Ilmiah Mahasiswa Pertanian 2021

Abstrak. Minyak nilam merupakan salah satu jenis dari minyak atsiri yang dapat digunakan sebagai bahan baku dalam industri parfum, kosmetik serta untuk pengobatan. mengandung patchouli alkohol yaitu penyusun utama indikator mengetahui kualitas nilam. Tujuan penelitian ini mengkaji kemampuan teknologi near infrared reflectance spectroscopy (NIRS) dengan metode partial least square (PLS) mempredi...

Journal: :Neural networks : the official journal of the International Neural Network Society 2009
Ranganatha Sitaram Andrea Caria Niels Birbaumer

Functional near-infrared spectroscopy (NIRS) and functional magnetic resonance imaging (fMRI) are non-invasive methods for acquiring hemodynamic signals from the brain with the primary benefit of anatomical specificity of signals. Recently, there has been a surge of studies with NIRS and fMRI for the implementation of a brain-computer interface (BCI), for the acquisition, decoding and regulatio...

Journal: :Poultry science 2012
M Tahir M Y Shim N E Ward M O Westerhaus G M Pesti

The purpose of this study was to determine the feasibility of estimating the total and phytate P content of common poultry feed ingredients by near-infrared reflectance spectroscopy (NIRS). Samples of 8 plant-origin feedstuffs were collected from poultry producers in the USA and Canada during the summer of 2009: corn (133), soybean meal (114), corn distillers dried grains with solubles (DDGS; 8...

Journal: :IOP conference series 2023

Abstract Porang is well known with its high glucomannan content. Determination of the chemical content porang flour commonly carried out by methods in laboratory, which are to take a long time and expensive. This study aims determine using near infrared spectroscopy (NIRS). The reflectance was measured an FT NIR spectrometer at wavelength 1000 2500 nm. (water content) determined oven spectropho...

2010
Xu Cui Signe Bray Allan L. Reiss

The hemodynamic response measured by Near Infrared Spectroscopy (NIRS) is temporally delayed from the onset of the underlying neural activity. As a consequence, NIRS based brain-computer-interfaces (BCIs) and neurofeedback learning systems, may have a latency of several seconds in responding to a change in participants' behavioral or mental states, severely limiting the practical use of such sy...

2013
Erick K Towett Merle Alex Keith D Shepherd Severin Polreich Ermias Aynekulu Brigitte L Maass

There is uncertainty on how generally applicable near-infrared reflectance spectroscopy (NIRS) calibrations are across genotypes and environments, and this study tests how well a single calibration performs across a wide range of conditions. We also address the optimization of NIRS to perform the analysis of crude protein (CP) content in a variety of cowpea accessions (n = 561) representing gen...

2014
Adriaan Smis Francisco Javier Ancin Murguzur Eric Struyf Eeva M. Soininen Juan G. Herranz Jusdado Patrick Meire Kari Anne Bråthen

Silicon (Si) is one of the most common elements in the earth bedrock, and its continental cycle is strongly biologically controlled. Yet, research on the biogeochemical cycle of Si in ecosystems is hampered by the time and cost associated with the currently used chemical analysis methods. Here, we assessed the suitability of Near Infrared Reflectance Spectroscopy (NIRS) for measuring Si content...

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