Results 11 to 20 of about 973,817 (343)

Infrared Spectroscopy—Mid-infrared, Near-infrared, and Far-infrared/Terahertz Spectroscopy

open access: yesAnalytical Sciences, 2021
This article aims to overview infrared (IR) spectroscopy. Simultaneously, it outlines mid-infrared (MIR), near-infrared (NIR), and far-infrared (FIR) or terahertz (THz) spectroscopy separately, and compares them in terms of principles, characteristics ...
Y. Ozaki
semanticscholar   +1 more source

Speeded near infrared spectroscopy (NIRS) response detection. [PDF]

open access: yesPLoS ONE, 2010
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 ...
Xu Cui, Signe Bray, Allan L Reiss
doaj   +1 more source

Detection of the Degree of Natural Mildew of Camellia oleifera Fruit Using Visible/Near Infrared, Mid- and Short-Wave Near Infrared Spectroscopy [PDF]

open access: yesShipin Kexue, 2023
This study explored the feasibility of applying visible and near-infrared (400?1 000 nm), and mid- and short-wave near infrared (900?1 700 nm) spectroscopy for detecting Camellia oleifera fruit with different degrees of natural mildew.
JIANG Hongzhe, YANG Xuesong, LI Xingpeng, JIANG Xuesong, ZHOU Hongping, SHI Minghong
doaj   +1 more source

Near infrared spectroscopy

open access: yesBritish Journal of Anaesthesia, 1999
Near-infrared spectroscopy (NIRS) is a relatively new technology that offers the enormous advantage of making measurements in vivo of changes in cerebral hemodynamics and oxygenation. Because NIRS is noninvasive and portable, it can provide real-time measurements of these changes at the bedside.
Clare E. Elwell   +3 more
openaire   +5 more sources

Application of Near Infrared Spectroscopy in Cardiopulmonary Resuscitation

open access: yesXiehe Yixue Zazhi, 2023
With the rapid development of society, cardiac arrest has become a major public health problem worldwide. For cardiac arrest patients, the primary goal of cardiopulmonary resuscitation(CPR) is to ensure oxygen supply to the brain and prevent brain ...
PENG Xiang, LI Xiangmin
doaj   +1 more source

Near-Infrared Spectroscopy in Extremely Preterm Infants

open access: yesFrontiers in Pediatrics, 2021
With advances in neonatal care, survival of premature infants at the limits of viability has improved significantly. Despite these improvement in mortality, infants born at 22–24 weeks gestation are at a very high risk for short- and long-term ...
Leeann R. Pavlek   +4 more
doaj   +1 more source

Watermelon ripeness detector using near infrared spectroscopy

open access: yesJurnal Teknologi dan Sistem Komputer, 2020
This study aimed to design and develop a watermelon ripeness detector using Near-Infrared Spectroscopy (NIRS). The research problem being solved in this study is developing a prototype wherein the watermelon ripeness can be detected without the need to ...
Edwin R. Arboleda   +2 more
doaj   +1 more source

Nonlinear interferometer for Fourier-transform mid-infrared gas spectroscopy using near-infrared detection.

open access: yesOptics Express, 2021
Nonlinear interferometers allow for mid-infrared spectroscopy with near-infrared detection using correlated photons. Previous implementations have demonstrated a spectral resolution limited by spectrally selective detection.
C. Lindner   +5 more
semanticscholar   +1 more source

Near-infrared spectroscopy of Miranda [PDF]

open access: yesAstronomy & Astrophysics, 2014
Aims. We present new near-infrared spectra of the leading and trailing hemispheres of Uranus’s icy satellite Miranda. This body is probably the most remarkable of all the satellites of Uranus, because it displays series of surface features such as faults, craters, and large-scale upwelling, a remnant of a geologically very active past. Methods.
A. Alvarez-Candal   +5 more
openaire   +5 more sources

Functional Near-Infrared Spectroscopy and Its Clinical Application in the Field of Neuroscience: Advances and Future Directions

open access: yesFrontiers in Neuroscience, 2020
Similar to functional magnetic resonance imaging (fMRI), functional near-infrared spectroscopy (fNIRS) detects the changes of hemoglobin species inside the brain, but via differences in optical absorption.
Wei-Liang Chen   +12 more
semanticscholar   +1 more source

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