Results 31 to 40 of about 69,282 (166)

In vivo micro-Raman spectroscopy from an arbitrary-shaped region of interest under simultaneous reflectance confocal imaging guidance

APL Photonics
Confocal Raman spectroscopy (CRS) has been widely used for noninvasive biochemical analysis of biological tissue in vivo. Currently, reflectance confocal microscopy (RCM) has been integrated with CRS as visual guidance for a square-/rectangular-shaped ...
Zhenguo Wu, Liwei Jiang, Jianhua Zhao, Harvey Lui, Haishan Zeng   +4 more
doaj   +1 more source

Collaborative Penalized Least Squares for Background Correction of Multiple Raman Spectra

Journal of Analytical Methods in Chemistry, 2018
Although Raman spectroscopy has been widely used as a noninvasive analytical tool in various applications, backgrounds in Raman spectra impair its performance in quantitative analysis.
Long Chen, Yingwen Wu, Tianjun Li, Zhuo Chen   +3 more
doaj   +1 more source

Analysis of the torsional Raman spectrum of a pyramidal molecule, dimethylamine

Chemical Physics, 1993
Abstract Overtone Raman spectra of dimethylamine (DMA) are analyzed yielding accurate torsional potential parameters. Neglecting the inversion motion of the amino-hydrogen in DMA the group G 18 is the proper molecular symmetry group to analyze the measured torsional Raman spectrum.
Consalvo, D., Bladel, J.W.I. van, Engeln, R., Reuss, J.   +3 more
openaire   +2 more sources

The Effects of Interacting With a Paro Robot After a Stressor in Patients With Psoriasis: A Randomised Pilot Study

Frontiers in Psychology, 2022
ObjectiveStress can play a role in the onset and exacerbation of psoriasis. Psychological interventions to reduce stress have been shown to improve psychological and psoriasis-related outcomes.
Mikaela Law, Paul Jarrett, Paul Jarrett, Michel K. Nieuwoudt, Michel K. Nieuwoudt, Michel K. Nieuwoudt, Michel K. Nieuwoudt, Hannah Holtkamp, Hannah Holtkamp, Hannah Holtkamp, Hannah Holtkamp, Cannon Giglio, Cannon Giglio, Elizabeth Broadbent   +13 more
doaj   +1 more source

Non-destructive Localization and Identification of Active Pharmaceutical Compounds by Raman Chemical Imaging

CHIMIA, 2013
Raman spectroscopy is a powerful and non-destructive technique for chemical and structural identification. Based on inelastic scattering of laser light by molecular vibrations, the analysis can be localized on a microscopic area when combined ...
Pierre Brodard, Samuel Roth, Olivier Vorlet   +2 more
doaj   +1 more source

Optimization of laser wavelength, power and pulse duration for eye-safe Raman spectroscopy

Journal of the European Optical Society-Rapid Publications, 2019
Raising the interest in remote chemical analysis, in particular through Raman and fluorescence spectroscopy, the opportunity of increasing the exposure represents an important step for an easier and more reliable spectrum analysis.
Federico Angelini, Francesco Colao
doaj   +1 more source

A SIGNAL ENHANCED PORTABLE RAMAN PROBE FOR ANESTHETIC GAS MONITORING [PDF]

Научно-технический вестник информационных технологий, механики и оптики, 2015
The spontaneous Raman scattering technique is an excellent tool for a quantitative analysis of multi-species gas mixtures. It is a noninvasive optical method for species identification and gas phase concentration measurement of all Raman active molecules,
S. Schlüter, S. Asbach, N. Popovska-Leipertz, T. Seeger, A. Leipertz   +4 more
doaj   +1 more source

A Raman spectral marker for the iso‐octyl chain structure of cholesterol

Analytical Science Advances
Raman spectroscopy provides label‐free, specific analysis of biomolecular structure and interactions. It could have a greater impact with improved characterization of complex fingerprint vibrations. Many Raman peaks have been assigned to cholesterol, for
Mathieu L. Simeral, Steven M. E. Demers, Kyle Sheth, Jason H. Hafner   +3 more
doaj   +1 more source

Influence of non-thermal maturity factors on laser Raman spectroscopy of highly to overmature shale: a case study of Lower Paleozoic marine shale in southern Sichuan Basin

Shiyou shiyan dizhi
Laser Raman spectroscopy has become increasingly prevalent in assessing the thermal maturity of ancient marine shale due to its advantages of simple sample preparation, easy operation, and non-destructive analysis.
Hongfei ZHANG, Kun JIAO, Jiayu WANG, Ning XU, Lijun MA, Lanfeng LIU, Yunjun WU, Bin DENG, Juan WU, Yuehao YE, Quanzhong GUAN, Xiangxin WANGZHOU, Congke ZHANG   +12 more
doaj   +1 more source

Analysis of the Raman spectrum of high-power amplifiers of wireless communication systems

Российский технологический журнал, 2020
At present, the transfer of information is an integral part of technologies that are actively developing in the framework of the process called the Fourth Industrial Revolution.
Minh Tuong Nguyen, Viktor I. Nefedov, Igor V. Kozlovsky, Alexey V. Malafeev, Kirill A. Selenya, Natalia A. Mirolyubova   +5 more
doaj   +1 more source