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Near-IR absorption spectrum of dichloromethane showing complicated overlapping overtones of mid IR absorption features.. Near-infrared spectroscopy (NIRS) is a spectroscopic method that uses the near-infrared region of the electromagnetic spectrum (from 780 nm to 2500 nm). [1]
Diffuse optical imaging (DOI) is a method of imaging using near-infrared spectroscopy (NIRS) [1] or fluorescence-based methods. [2] When used to create 3D volumetric models of the imaged material DOI is referred to as diffuse optical tomography , whereas 2D imaging methods are classified as diffuse optical imaging .
Diffuse correlation spectroscopy (DCS) is a type of medical imaging and optical technique that utilizes near-infrared light to directly and non-invasively measure tissue blood flow. [1] The imaging modality was created by David Boas and Arjun Yodh in 1995.
In the compound on the left, the base value is 214 nm (a heteroannular diene). This diene group has 4 alkyl substituents (labeled 1,2,3,4) and the double bond in one ring is exocyclic to the other (adding 5 nm for an exocyclic double bond). In the compound on the right, the diene is homoannular with 4 alkyl substituents.
Functional near-infrared spectroscopy (fNIRS) is an optical brain monitoring technique which uses near-infrared spectroscopy for the purpose of functional neuroimaging. [1] Using fNIRS, brain activity is measured by using near-infrared light to estimate cortical hemodynamic activity which occur in response to neural activity.
(Reuters) -The S&P 500 and the Dow hovered at levels seen more than a week ago on Friday, as investors took comfort from data pointing to robust economic activity in the world's biggest economy.
These 2 Nutrients Could Help You Lose Weight Tanja Ivanova - Getty Images There’s a lot of information out there about how to lose weight —and some tidbits are more reliable than others.
The father of late pro golfer Grayson Murray is opening up about a conversation he had with his son shortly before his tragic death. In a new interview with Golf Digest, Murray’s family shared ...