Results 1 to 10 of about 645,619 (224)

Near infrared flares of Sagittarius A*: Importance of near infrared polarimetry [PDF]

open access: yesAstronomy and Astrophysics, 2009
We report on the results of new simulations of near-infrared (NIR) observations of the Sagittarius A* (Sgr A*) counterpart associated with the super-massive black hole at the Galactic Center. The observations have been carried out using the NACO adaptive
A. Eckart   +98 more
core   +5 more sources

Near-infrared spectroscopy [PDF]

open access: yesJournal of Neuroanaesthesiology and Critical Care, 2015
Tissue ischaemia can be a significant contributor to increased morbidity and mortality. Conventional oxygenation monitoring modalities measure systemic oxygenation, but regional tissue oxygenation is not monitored.
Virendra Jain, Hari H Dash
doaj   +5 more sources

Near-infrared neuroimaging with NinPy [PDF]

open access: yesFrontiers in Neuroinformatics, 2009
There has been substantial recent growth in the use of non-invasive optical brain imaging in studies of human brain function in health and disease.
Gary E Strangman   +4 more
doaj   +3 more sources

Near‐Infrared Emission Perovskites for Multifunctional Bioimaging [PDF]

open access: yesSmall Science
Bioimaging with remarkable noninvasive nature, ultrahigh resolution and sensitivity allows detection of pathologies of bones, organs, and tissues. Nevertheless, the achievement of more complete information in vivo is challenged by the necessity of ...
Tianchi Wang   +9 more
doaj   +2 more sources

Ultrabright near-infrared light

open access: yesLight: Science & Applications
The recent race for bright and broadband near-infrared (NIR) light sources has focused on new luminescent materials (phosphors) for efficient conversion of blue light emitting diode (LED) emission to broadband NIR. For extreme brightness, blue laser diodes (LDs) are superior to LEDs as they maintain efficiency at high current density.
Andries Meijerink
doaj   +5 more sources

Identification of Maturity Stage of Cacao using Visible Near Infrared (Vis-NIR) and Shortwave Near Infrared (SW-NIR) Reflectance Spectroscopy [PDF]

open access: yesBIO Web of Conferences, 2023
Choosing the cacao maturity stage is essential for producing high-quality cacao beans. Identifying indicators of the maturity level of cacao is a complex task because these fruits do not exhibit the characteristics of other fruits during the ripening ...
Listanti Riana   +3 more
doaj   +1 more source

A Systematic Review of the Impact of Physical Exercise-Induced Increased Resting Cerebral Blood Flow on Cognitive Functions

open access: yesFrontiers in Aging Neuroscience, 2022
Brain perfusion declines with aging. Physical exercise represents a low-cost accessible form of intervention to increase cerebral blood flow; however, it remains unclear if exercise-induced amelioration of brain perfusion has any impact on cognition.
Maria B. Renke   +7 more
doaj   +1 more source

Low cost infrared and near infrared sensors for UAVs [PDF]

open access: yesThe International Archives of the Photogrammetry, Remote Sensing and Spatial Information Sciences, 2014
Thermal remote sensing has a wide range of applications, though the extent of its use is inhibited by cost. Robotic and computer components are now widely available to consumers on a scale that makes thermal data a readily accessible resource.
S. T. Aden   +4 more
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

Near Infrared Diode Laser THz Systems [PDF]

open access: yesAdvances in Radio Science, 2018
The generation and detection of radiation in the THz frequency range can be achieved with many different electronic and photonic concepts. Among the many different photonic THz systems the most versatile are based on diode lasers.
C. Brenner   +10 more
doaj   +1 more source

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