Results 31 to 40 of about 397,505 (354)

Near-infrared spectroscopy of autunites

Spectrochimica Acta Part A: Molecular and Biomolecular Spectroscopy, 2005
NIR spectroscopy has been applied to the study water in the interlayer of the autunite minerals. The spectra of autunites and metaautunites in the first HOH fundamental overtone are different and the spectra of autunites of different origins in the 6000-7500 cm(-1) region are considerably different.
Frost, RL, Erickson, KL, Adebajo, MO, Weier, ML   +3 more
openaire   +5 more sources

Portable microcontroller-based instrument for near-infrared spectroscopy

, 2000
Near Infrared Spectroscopy (NIRS) can be employed to noninvasively and continuously measure in-vivo local changes in haemodynamics and oxygenation of human tissues.
Andrea Gelmetti, Lago, P, Corti, M, Giardini, Mario Ettore, Lago, Paolo, Corti, Mario, Giardini, M E, Paolo Lago, Mario Corti, Gelmetti, A, Gelmetti, Andrea, Mario E. Giardini   +11 more
core   +1 more source

Milk Nitrogenous Components as Measured by Near Infrared Spectroscopy-study on the repeatability for Predicting Different Population Samples [PDF]

, 1999
The study on the use of near infrared reflectance spectroscopy (NIRS) analysis for measuring milk nitrogenous components (crude protein, true protein, casein and milk urea nitrogen (MUN)) was carried out using one hundred seventy milk samples collected ...
Agung PURNOMOADI, Nishida, Takehiro, Purnomoadi, Agung, Higuchi, Kouji, Enishi, Osamu, Nonaka, Itoko, Terada , Fuminori, Osamu ENISHI, Koichiro UEDA, Kouji HIGUCHI, Takehiro NISHIDA, Ueda, Koichiro, Kurihara , Mitsunori, Keshab Kumar BATAJOO, Batajoo, Keshab Kumar, Mitsunori KURIHARA, Itoko NONAKA, Fuminori TERADA   +17 more
core   +1 more source

The application of near infrared spectroscopy in nutritional intervention studies

, 2013
Functional near infrared spectroscopy (NIRS) is a non-invasive optical imaging technique used to monitor cerebral blood flow (CBF) and by proxy neuronal activation.
Kennedy, David, Philippa A Jackson, David O. Kennedy, David O Kennedy, Philippa A. Jackson, Jackson, Philippa   +5 more
core   +1 more source

Functional near-infrared spectroscopy studies in children

BioPsychoSocial Medicine, 2012
Psychosomatic and developmental behavioral medicine in pediatrics has been the subject of significant recent attention, with infants, school-age children, and adolescents frequently presenting with psychosomatic, behavioral, and psychiatric symptoms ...
Nagamitsu Shinichiro, Yamashita Yushiro, Tanaka Hidetaka, Matsuishi Toyojiro   +3 more
doaj   +1 more source

g-C3N4 Modified by meso-Tetrahydroxyphenylchlorin for Photocatalytic Hydrogen Evolution Under Visible/Near-Infrared Light

Frontiers in Chemistry, 2020
A new photocatalyst denoted as mTHPC/pCN was prepared by modifying protonated graphitic carbon nitride (pCN) by meso-tetrahydroxyphenylchlorin (mTHPC). Relevant samples were characterized via various methods including zeta potential measurements, X-ray ...
Yanfei Liu, Zhen Ma, Zhen Ma
doaj   +1 more source

Microcontroller-based digital front-end for near-infrared spectroscopy

, 2000
Near Infrared Spectroscopy (NIRS) can be employed to noninvasively and continuously measure in-vivo local changes in haemodynamics and oxygenation of human tissues.
Andrea Gelmetti, Lago, P, Corti, M, Danese, G, Guizzetti, Giovanni G., Danese, Giovanni, Corti, Mario, Paolo Lago, Gelmetti, A, Giovanni Danese, Giardini, Mario Ettore, Lago, Paolo, Giardini, M E, Guizzetti, G G, Mario Corti, Gelmetti, Andrea, Mario E. Giardini, Giovanni G. Guizzetti   +17 more
core   +1 more source

Apple Variety Identification Using Near-Infrared Spectroscopy

Journal of Spectroscopy, 2018
Near-infrared (NIR) spectra of apple samples were submitted in this paper to principal component analysis (PCA) and successive projections algorithm (SPA) to conduct variable selection.
Caihong Li, Lingling Li, Yuan Wu, Min Lu, Yi Yang, Lian Li   +5 more
doaj   +1 more source

Muscle oxygenation monitoring using near-infrared spectroscopy

Journal of Physical Fitness and Sports Medicine, 2013
Near-infrared spectroscopy (NIRS) has been a useful method for the detection of changes in in vivo muscle oxygenation and oxidative metabolism in healthy subjects as well as in patients with various diseases.
Takafumi Hamaoka
doaj   +1 more source

WIRELESS DISTRIBUTED ACQUISITION SYSTEM FOR NEAR INFRARED SPECTROSCOPY – WDA-NIRS [PDF]

Journal of Innovative Optical Health Sciences, 2013
The wireless distributed acquisition system for near infrared spectroscopy (WDA-NIRS) is a portable, ultra-compact, continuous wave (CW) NIRS system. Its main advantage is that it allows continuous synchronized multi-site hemodynamic monitoring.
J. SAFAIE, R. GREBE, H. ABRISHAMI MOGHADDAM, F. WALLOIS   +3 more
doaj   +1 more source