Results 21 to 30 of about 529,607 (296)

Determination of Total Flavonoid Content in Medicinal Plant Leaves Powder Using Infrared Spectroscopy and Chemometrics

open access: yesIndonesian Journal of Chemistry, 2020
Flavonoid is phenolic compounds consisting of fifteen carbon atoms and is commonly found in plants. Infrared (IR) spectroscopy combined with chemometrics, has been developed for a simple analysis of flavonoid in the medicinal plant leaves powder.
Lestyo Wulandari   +2 more
doaj   +1 more source

Resolved Near-infrared Stellar Populations in Nearby Galaxies [PDF]

open access: yes, 2011
We present near-infrared (NIR) color-magnitude diagrams (CMDs) for the resolved stellar populations within 26 fields of 23 nearby galaxies (≲ 4 Mpc), based on images in the F110W and F160W filters taken with the Wide-Field Camera 3 (WFC3) on the Hubble ...
Andy Dolphin   +59 more
core   +3 more sources

Near-infrared light spectroscopy and stimulation in cognitive neuroscience: the need for an integrative view?

open access: yesJournal of Integrative Neuroscience, 2021
Near-infrared spectroscopy (NIRS) has been largely used in neuroscience as an alternative non-invasive neuroimaging technique, primarily to measure the oxygenation levels of cerebral haemoglobin.
Matteo Martini   +1 more
doaj   +1 more source

Decoding Vigilance with NIRS

open access: yesPLoS ONE, 2014
Sustained, long-term cognitive workload is associated with variations and decrements in performance. Such fluctuations in vigilance can be a risk factor especially during dangerous attention demanding activities. Functional MRI studies have shown that attentional performance is correlated with BOLD-signals, especially in parietal and prefrontal ...
Bogler, C.   +3 more
openaire   +5 more sources

Comparison of innovative and non-invasive methods in estimating the fat content in pork trimmings

open access: yesCzech Journal of Food Sciences, 2017
The purpose of research was to determine a possibility of application of computer vision systems (CVS) for estimation of fat content in pork trimmings in comparison with methods based on DXR (dual energy X-ray) and NIR (near-infrared reflectance ...
Krzysztof Dasiewicz   +2 more
doaj   +1 more source

The Use of Indocyanine Green (ICG) and Near-Infrared (NIR) Fluorescence-Guided Imaging in Gastric Cancer Surgery: A Narrative Review

open access: yesFrontiers in Surgery, 2022
Near-infrared fluorescence imaging with indocyanine green is an emerging technology gaining clinical relevance in the field of oncosurgery. In recent decades, it has also been applied in gastric cancer surgery, spreading among surgeons thanks to the ...
Francesco Belia   +16 more
doaj   +1 more source

A variable near-infrared counterpart to the neutron-star low-mass X-ray binary 4U 1705-440 [PDF]

open access: yes, 2008
We report the discovery of a near-infrared (nIR) counterpart to the persistent neutron-star low-mass X-ray binary 4U 1705-440, at a location consistent with its recently determined Chandra X-ray position.
Andrew J. Young   +26 more
core   +2 more sources

Non-destructive assessment of olive fruit ripening by portable near infrared spectroscopy

open access: yesGrasas y Aceites, 2011
The feasibility of portable near infrared spectroscopy (NIR) technology for the determination of oil and moisture contents in intact olive fruits was studied.
A. Gracia, L. León
doaj   +1 more source

Methods review to study information needs of scientists and specialists

open access: yesБиблиосфера, 2017
Users’ information needs (IN) underlying the system of information-library servicing are still actively studied by specialists of the librarianship. These studies require the correct choice of research methods. The authors attempted to analyze techniques
M. A. Pleshakova, T. A. Kalyuzhnaya
doaj   +1 more source

Innovative design of waste processing technologies

open access: yesSerbian Journal of Management, 2021
Designing modern waste recycling systems is an urgent problem. The experience of attracting masters from two leading Russian universities in organizing interaction and cooperation in the development and implementation of waste sorting complexes is ...
Natalya B. Safronova   +1 more
doaj   +1 more source

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