Results 341 to 350 of about 1,011,299 (367)

Near Infrared Spectroscopy Research

Pediatrics, 1993
To the Editor.— In a recent issue of this journal (Pediatrics. 1993;91:414-417), Dr Deborah Hirtz reported on a Workshop on Near Infrared Spectroscopy (NIRS), organized by the National Institute of Neurological Disorders and Stroke (NINDS).
DELPY DT, FERRARI, Marco
openaire   +2 more sources

Understanding Near-Infrared Spectroscopy

Advances in Neonatal Care, 2011
Near-infrared spectroscopy (NIRS) is a noninvasive technique that monitors regional tissue oxygenation reflecting perfusion status. Near-infrared spectroscopy has the ability to continuously and simultaneously monitor tissue perfusion in different organ systems at the bedside without interrupting routine care.
Terri Marin, James Moore
openaire   +2 more sources

Functional near-infrared spectroscopy

IEEE Engineering in Medicine and Biology Magazine, 2006
The purpose of the this article is to describe an emerging neuroimaging technology, functional near-infrared spectroscopy (fNIRs), which has several attributes that make it possible to conduct neuroimaging studies of the cortex in clinical offices and under more realistic, ecologically valid parameters.
Scott C, Bunce, Meltem, Izzetoglu, Kurtulus, Izzetoglu, Banu, Onaral, Kambiz, Pourrezaei   +4 more
openaire   +2 more sources

Near-Infrared Spectroscopy

2021
openaire   +3 more sources

Near-Infrared Spectroscopy in Pediatric Congenital Heart Disease.

Journal of Cardiothoracic and Vascular Anesthesia, 2020
Near-infrared spectroscopy (NIRS) is widely used to monitor tissue oxygenation in the pediatric cardiac surgical population. Clinicians who use NIRS must understand the underlying measurement principles in order to interpret and use this monitoring ...
Katherine L. Zaleski, B. Kussman
semanticscholar   +1 more source

In Vivo Near-Infrared Spectroscopy

Annual Review of Biomedical Engineering, 2000
▪ Abstract  Interrogation of tissue with light offers the potential for noninvasive chemical measurement, and penetration with near-infrared wavelengths (750–1000 nm) is greater than with visible light. Specific absorption by clinically relevant compounds such as oxy- and deoxyhemoglobin and the intracellular respiratory enzyme cytochrome oxidase ...
openaire   +2 more sources

Near‐infrared spectroscopy of polymers

Makromolekulare Chemie. Macromolecular Symposia, 1991
AbstractAlthough near–infrared (NIR) spectroscopy has been used over many decades for the – primarily quantitative – analysis of polymers containing OH–, NH– and CH–functionalities (e.g. determination of OH–number, water content and residual carbon–carbon double–bonds), it has never been established as a wide–spread analytical and physical tool ...
openaire   +1 more source

Interpretive Spectroscopy for Near Infrared

Applied Spectroscopy Reviews, 1996
ABSTRACT Qualitative and quantitative near infrared spectroscopic (NIRS) methods require the application of multivariate calibration algorithms to model NIR spectral response to chemical or physical properties of a calibration sample set. The identification of unique wavelength regions where changes in the response of the near infrared spectrometer are
openaire   +1 more source

Near Infrared Spectroscopy

Journal of Near Infrared Spectroscopy, 1998
Some of the concepts that make a near infrared spectrum understandable are reviewed. The origin of vibrational anharmonicity which determines the occurrence and the spectral properties (frequency, intensity) is discussed. The importance of the effects of the resonances which increase with increasing excitation are mentioned.
openaire   +2 more sources

End‐to‐end quantitative analysis modeling of near‐infrared spectroscopy based on convolutional neural network

Journal of Chemometrics, 2019
During the near‐infrared spectroscopy analysis process, modeling the quantitative relationship between the collected spectral information and target components is an important procedure.
Yuan‐Yuan Chen, Zhibin Wang
semanticscholar   +1 more source