Results 41 to 50 of about 995,166 (375)

Contribution of speckle noise in near-infrared spectroscopy measurements [PDF]

, 2019
Near-infrared spectroscopy (NIRS) is widely used in biomedical optics with applications ranging from basic science, such as in functional neuroimaging, to clinical, as in pulse oximetry.
Boas, David A., Cheng, Xiaojun, Li, Xinge, Ortega-Martinez, Antonio, Yucel, Meryem Ayşe, Zimmermann, Bernhard   +5 more
core   +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

Evidence that large vessels do affect near infrared spectroscopy

Scientific Reports, 2022
The influence of large vessels on near infrared spectroscopy (NIRS) measurement is generally considered negligible. Aim of this study is to test the hypothesis that changes in the vessel size, by varying the amount of absorbed NIR light, could profoundly
Stefano Seddone, Leonardo Ermini, Piero Policastro, Luca Mesin, Silvestro Roatta   +4 more
doaj   +1 more source

High-resolution UKIRT observations of circumnuclear star formation in M100 [PDF]

, 1998
We present high-resolution, near-infrared imaging of the circumnuclear region of the barred spiral galaxy M100 (=NGC 4321), accompanied by near-infrared spectroscopy.
Knapen, Johan H., Ryder, Stuart D.
core   +3 more sources

The surface composition of asteroid 162173 Ryugu from Hayabusa2 near-infrared spectroscopy

Science, 2019
Hayabusa2 at the asteroid Ryugu Asteroids fall to Earth in the form of meteorites, but these provide little information about their origins. The Japanese mission Hayabusa2 is designed to collect samples directly from the surface of an asteroid and return
K. Kitazato, R. Milliken, T. Iwata, M. Abe, M. Ohtake, S. Matsuura, T. Arai, Y. Nakauchi, T. Nakamura, M. Matsuoka, H. Senshu, N. Hirata, T. Hiroi, C. Pilorget, R. Brunetto, F. Poulet, L. Riu, J. Bibring, D. Takir, D. Domingue, F. Vilas, M. Barucci, D. Perna, E. Palomba, A. Galiano, K. Tsumura, T. Osawa, M. Komatsu, A. Nakato, T. Arai, N. Takato, T. Matsunaga, Y. Takagi, K. Matsumoto, T. Kouyama, Y. Yokota, E. Tatsumi, N. Sakatani, Y. Yamamoto, T. Okada, S. Sugita, R. Honda, T. Morota, S. Kameda, H. Sawada, C. Honda, M. Yamada, H. Suzuki, K. Yoshioka, M. Hayakawa, K. Ogawa, Y. Cho, K. Shirai, Y. Shimaki, N. Hirata, A. Yamaguchi, N. Ogawa, F. Terui, T. Yamaguchi, Y. Takei, T. Saiki, S. Nakazawa, S. Tanaka, M. Yoshikawa, S. Watanabe, Y. Tsuda   +65 more
semanticscholar   +1 more source

A Newcomer's Guide to Functional Near Infrared Spectroscopy Experiments

IEEE Reviews in Biomedical Engineering, 2020
This review presents a practical primer for functional near-infrared spectroscopy (fNIRS) with respect to technology, experimentation, and analysis software.
R. K. Almajidy, K. Mankodiya, M. Abtahi, U. Hofmann   +3 more
semanticscholar   +1 more source

Model for quantitative tip-enhanced spectroscopy and the extraction of nanoscale-resolved optical constants

, 2014
Near-field infrared spectroscopy by elastic scattering of light from a probe tip resolves optical contrasts in materials at dramatically sub-wavelength scales across a broad energy range, with the demonstrated capacity for chemical identification at the ...
Basov, D. N., Dominguez, Gerardo, Fogler, Michael M., Gainsforth, Zack, Goldflam, M. D., Kelly, Priscilla, McLeod, Alexander S., Thiemens, Mark, Westphal, Andrew J.   +8 more
core   +1 more source

Deep belief network-based drug identification using near infrared spectroscopy [PDF]

Journal of Innovative Optical Health Sciences, 2017
Near infrared spectroscopy (NIRS) analysis technology, combined with chemometrics, can be effectively used in quick and nondestructive analysis of quality and category.
Huihua Yang, Baichao Hu, Xipeng Pan, Shengke Yan, Yanchun Feng, Xuebo Zhang, Lihui Yin, Changqin Hu   +7 more
doaj   +1 more source

Infrared Variability of Evolved Protoplanetary Disks: Evidence for Scale Height Variations in the Inner Disk

, 2012
We present the results of a multi-wavelength multi-epoch survey of five evolved protoplanetary disks in the IC 348 cluster that show significant infrared variability.
Andrews, Artymowicz, Bouvier, Bryden, Calvet, Carpenter, Cieza, Cieza, Cohen, D'Alessio, D'Alessio, Dahm, Dodson-Robinson, Donehew, Dullemond, Edwards, Espaillat, Espaillat, Espaillat, Feigelson, Flaherty, Flaherty, Furlan, G. Rieke, Goodson, Herbig, Herbst, Hernig, Hernández, Hirose, Hutchinson, J. Muzerolle, Jorgensen, K. M. Flaherty, Ke, Kessler-Silacci, Konigl, Lada, Lai, Luhman, M. Kun, Manoj, McClure, Morales-Calderón, Muench, Muzerolle, Muzerolle, Muzerolle, Muzerolle, Nagel, Nordhagen, Pascucci, Pontoppidan, Pott, R. Gutermuth, Rayner, Rebull, S. T. Megeath, Salyk, Siess, Suzuki, Turner, Vinkovíc, W. Herbst, White, Wolk, Z. Balog   +66 more
core   +1 more source

Applications of Functional Near-Infrared Spectroscopy (fNIRS) Neuroimaging in Exercise–Cognition Science: A Systematic, Methodology-Focused Review

Journal of Clinical Medicine, 2018
For cognitive processes to function well, it is essential that the brain is optimally supplied with oxygen and blood. In recent years, evidence has emerged suggesting that cerebral oxygenation and hemodynamics can be modified with physical activity.
Fabian Herold, P. Wiegel, F. Scholkmann, N. Müller   +3 more
semanticscholar   +1 more source